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* [PATCH V2 0/3] MPC85xx support
@ 2012-04-13 13:04 Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
                   ` (3 more replies)
  0 siblings, 4 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-13 13:04 UTC (permalink / raw)
  To: s.hauer; +Cc: barebox

This patchset introduces the MPC85xx architecture to Barebox. The
existing PPC code is modified to enable multiple PowerPC architecture
support. All existing architecture specific MPC5xxx code which prevents
adding additional architectures is moved into the architecture specific
subdirectories and the PCM030 configuration fixed to use this new
configuration.

Base MPC85xx infrastructure is added to enable the required
functionality for a minimal boot target in 32 bit addressing mode
using an e500v2 core.

Finally support is added for a minimal Freescale P2020RDB platform with
driver support currently limited to NOR and serial port only.

Renaud Barbier (3):
  Preparation stage to support multiple PPC architectures
  Minimal support of the MPC85xx architecture
  Minimal P2020RDB platform support and configuration file

 arch/ppc/Kconfig                                  |   45 +-
 arch/ppc/Makefile                                 |   27 +-
 arch/ppc/boards/freescale-p2020rdb/Makefile       |    4 +
 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S  |  144 +++
 arch/ppc/boards/freescale-p2020rdb/config.h       |   98 ++
 arch/ppc/boards/freescale-p2020rdb/law.c          |   31 +
 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c     |  237 +++++
 arch/ppc/boards/freescale-p2020rdb/tlb.c          |   62 ++
 arch/ppc/configs/p2020rdb_defconfig               |   23 +
 arch/ppc/configs/pcm030_defconfig                 |    3 +
 arch/ppc/cpu-85xx/Makefile                        |    7 +
 arch/ppc/cpu-85xx/cpu.c                           |  115 +++
 arch/ppc/cpu-85xx/cpu_init.c                      |  145 +++
 arch/ppc/cpu-85xx/fixed_ivor.S                    |   61 ++
 arch/ppc/cpu-85xx/release.S                       |  265 +++++
 arch/ppc/cpu-85xx/resetvec.S                      |    2 +
 arch/ppc/cpu-85xx/start.S                         | 1097 +++++++++++++++++++++
 arch/ppc/cpu-85xx/tlb.c                           |  228 +++++
 arch/ppc/cpu-85xx/traps.c                         |  300 ++++++
 arch/ppc/include/asm/bitops.h                     |   42 +
 arch/ppc/include/asm/cache.h                      |   19 +-
 arch/ppc/include/asm/common.h                     |    2 +
 arch/ppc/include/asm/config.h                     |   44 +
 arch/ppc/include/asm/config_mpc85xx.h             |   37 +
 arch/ppc/include/asm/e500.h                       |   39 +
 arch/ppc/include/asm/fsl_ddr_sdram.h              |   34 +
 arch/ppc/include/asm/fsl_i2c.h                    |   10 +-
 arch/ppc/include/asm/fsl_law.h                    |   91 ++
 arch/ppc/include/asm/fsl_lbc.h                    |   67 ++
 arch/ppc/include/asm/global_data.h                |   57 ++
 arch/ppc/include/asm/io.h                         |   20 +
 arch/ppc/include/asm/mmu.h                        |   69 ++-
 arch/ppc/include/asm/processor.h                  |   44 +
 arch/ppc/lib/Makefile                             |    4 +-
 arch/ppc/lib/board.c                              |   11 +-
 arch/ppc/lib/reloc.S                              |   47 +
 arch/ppc/lib/{time.c => time-mpc5200.c}           |   27 +-
 arch/ppc/lib/{time.c => time-mpc85xx.c}           |   34 +-
 arch/ppc/mach-mpc5xxx/Kconfig                     |   43 +-
 arch/ppc/mach-mpc5xxx/pci_mpc5200.c               |    2 +-
 arch/ppc/mach-mpc5xxx/start.S                     |    2 +-
 arch/ppc/mach-mpc5xxx/traps.c                     |    6 +-
 arch/ppc/mach-mpc85xx/Kconfig                     |   45 +
 arch/ppc/mach-mpc85xx/Makefile                    |    5 +
 arch/ppc/mach-mpc85xx/cpuid.c                     |   69 ++
 arch/ppc/mach-mpc85xx/fsl_law.c                   |  156 +++
 arch/ppc/mach-mpc85xx/fsl_lbc.c                   |   17 +
 arch/ppc/mach-mpc85xx/include/mach/clocks.h       |   11 +
 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h |   33 +
 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h   |  132 +++
 arch/ppc/mach-mpc85xx/include/mach/mp.h           |   15 +
 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h      |   17 +
 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl   |  208 ++++
 arch/ppc/mach-mpc85xx/mp.c                        |  156 +++
 arch/ppc/mach-mpc85xx/speed.c                     |   97 ++
 include/linux/types.h                             |    2 +
 56 files changed, 4475 insertions(+), 133 deletions(-)
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/Makefile
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/config.h
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/law.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/tlb.c
 create mode 100644 arch/ppc/configs/p2020rdb_defconfig
 create mode 100644 arch/ppc/cpu-85xx/Makefile
 create mode 100644 arch/ppc/cpu-85xx/cpu.c
 create mode 100644 arch/ppc/cpu-85xx/cpu_init.c
 create mode 100644 arch/ppc/cpu-85xx/fixed_ivor.S
 create mode 100644 arch/ppc/cpu-85xx/release.S
 create mode 100644 arch/ppc/cpu-85xx/resetvec.S
 create mode 100644 arch/ppc/cpu-85xx/start.S
 create mode 100644 arch/ppc/cpu-85xx/tlb.c
 create mode 100644 arch/ppc/cpu-85xx/traps.c
 create mode 100644 arch/ppc/include/asm/config.h
 create mode 100644 arch/ppc/include/asm/config_mpc85xx.h
 create mode 100644 arch/ppc/include/asm/e500.h
 create mode 100644 arch/ppc/include/asm/fsl_ddr_sdram.h
 create mode 100644 arch/ppc/include/asm/fsl_law.h
 create mode 100644 arch/ppc/include/asm/fsl_lbc.h
 create mode 100644 arch/ppc/include/asm/global_data.h
 create mode 100644 arch/ppc/lib/reloc.S
 copy arch/ppc/lib/{time.c => time-mpc5200.c} (71%)
 rename arch/ppc/lib/{time.c => time-mpc85xx.c} (65%)
 create mode 100644 arch/ppc/mach-mpc85xx/Kconfig
 create mode 100644 arch/ppc/mach-mpc85xx/Makefile
 create mode 100644 arch/ppc/mach-mpc85xx/cpuid.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_law.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_lbc.c
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/clocks.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mp.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
 create mode 100644 arch/ppc/mach-mpc85xx/mp.c
 create mode 100644 arch/ppc/mach-mpc85xx/speed.c


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V2 1/3] Preparation stage to support multiple PPC architectures
  2012-04-13 13:04 [PATCH V2 0/3] MPC85xx support Renaud Barbier
@ 2012-04-13 13:04 ` Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-13 13:04 UTC (permalink / raw)
  To: s.hauer; +Cc: barebox

arch/ppc/Kconfig is reworked to make the configuration environment
architecture neutral. All MPC5200 configuration is moved to the
MPC5200 architecture specific configuration file. These modifications
are reflected in the PCM030 board support.

arch/ppc/Makefile compilation directives are updated in preparation
for the introduction of future cpus/machines.

lib/time.c is moved to an architecture specific version and the
building instructions updated in the Makefile. The file
now named time-mpc5200.c is cleaned up of unused code.

The definition of L1_CACHE_... is updated and CACHELINE_SIZE is
defined in ppc/include/asm/cache.h for future use by the mpc85xx.
The file mach-mpc5xxx/pci_mpc5200.c and mach-mpc5xxx/start.S are
updated accordingly.

The declaration of search_exception_table is moved in
include/asm/common.h because it is used across architectures.
mach-mpc5xxx/traps.c is also updated to reflect this change.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Kconfig                        |   42 +++---------------------------
 arch/ppc/Makefile                       |   19 ++++++++-----
 arch/ppc/configs/pcm030_defconfig       |    3 ++
 arch/ppc/include/asm/cache.h            |   17 +++++-------
 arch/ppc/include/asm/common.h           |    1 +
 arch/ppc/lib/Makefile                   |    2 +-
 arch/ppc/lib/{time.c => time-mpc5200.c} |   27 ++-----------------
 arch/ppc/mach-mpc5xxx/Kconfig           |   43 ++++++++++++++++++++++++++++++-
 arch/ppc/mach-mpc5xxx/pci_mpc5200.c     |    2 +-
 arch/ppc/mach-mpc5xxx/start.S           |    2 +-
 arch/ppc/mach-mpc5xxx/traps.c           |    6 +---
 11 files changed, 76 insertions(+), 88 deletions(-)
 rename arch/ppc/lib/{time.c => time-mpc5200.c} (71%)

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 4c7b7cd..164598f 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -1,51 +1,17 @@
-
-config BOARDINFO
-	default "Phytec Phycore mpc5200b tiny" if MACH_PHYCORE_MPC5200B_TINY
-	
-config ARCH_TEXT_BASE
-	hex
-	default 0x00000000 if RELOCATABLE
-	default 0x01000000 if MACH_PHYCORE_MPC5200B_TINY
-
 config PPC
 	bool
 	select HAVE_CONFIGURABLE_TEXT_BASE
 	select HAS_KALLSYMS
 	select HAS_MODULES
 	select HAVE_CONFIGURABLE_MEMORY_LAYOUT
-	select HAVE_CONFIGURABLE_TEXT_BASE
 	default y
 
-# Uh, we should decide which one we want to use
-config ARCH_MPC5200
-	bool
-
-config MPC5200
-	bool
-
-config MPC5xxx
-	bool
-
-config CACHELINE_SIZE
-	int
-	default 32 if ARCH_MPC5200
-
-config HAS_REGINFO
-	bool
-	default y if ARCH_MPC5200
-
 choice
-	prompt "Select your board"
+	prompt "Processor type"
+
+config ARCH_MPC5XXX
+	bool "Freescale MPC5xxx"
 
-config MACH_PHYCORE_MPC5200B_TINY
-	bool "Phycore mpc5200b tiny"
-	select ARCH_MPC5200
-	select MPC5200
-	select MPC5xxx
-	select HAS_CFI
-	help
-	  Say Y here if you are using the Phytec Phycore MPC5200B Tiny
-	  board aka pcm030
 endchoice
 
 source arch/ppc/mach-mpc5xxx/Kconfig
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index c7bf863..2d9e47f 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -1,16 +1,15 @@
 
-CPPFLAGS += -ffixed-r14 	\
+CPPFLAGS += -ffixed-r14 -m32 	\
 	-meabi -D __PPC__ -D CONFIG_PPC \
-	-fno-strict-aliasing
+	-fno-strict-aliasing -mno-spe -mspe=no
 
 ifdef CONFIG_RELOCATABLE
 CPPFLAGS += -fPIC -mrelocatable
 endif
 
 
-machine-$(CONFIG_ARCH_MPC5200)			:= mpc5200
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
-cpu-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
+machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
 
 TEXT_BASE = $(CONFIG_TEXT_BASE)
 
@@ -21,7 +20,7 @@ ifndef CONFIG_MODULES
 CPPFLAGS += -fdata-sections -ffunction-sections
 endif
 
-machdirs := $(patsubst %,arch/ppc/mach-%/,$(cpu-y))
+machdirs := $(patsubst %,arch/ppc/mach-%/,$(machine-y))
 
 ifeq ($(KBUILD_SRC),)
 CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
@@ -40,13 +39,19 @@ else
 BOARD  :=
 endif
 
+ifneq ($(machine-y),)
+MACH  := arch/ppc/mach-$(machine-y)/
+else
+MACH  :=
+endif
+
 ifneq ($(cpu-y),)
-CPU  := arch/ppc/mach-$(cpu-y)/
+CPU  := arch/ppc/cpu-$(cpu-y)/
 else
 CPU  :=
 endif
 
-common-y += $(BOARD) $(CPU)
+common-y += $(BOARD) $(CPU) $(MACH)
 common-y += arch/ppc/lib/
 
 lds-y += $(BOARD)/barebox.lds
diff --git a/arch/ppc/configs/pcm030_defconfig b/arch/ppc/configs/pcm030_defconfig
index 5de1c75..c037502 100644
--- a/arch/ppc/configs/pcm030_defconfig
+++ b/arch/ppc/configs/pcm030_defconfig
@@ -32,6 +32,9 @@ CONFIG_NET=y
 CONFIG_NET_DHCP=y
 CONFIG_NET_PING=y
 CONFIG_NET_TFTP=y
+CONFIG_ARCH_MPC5XXX=y
+CONFIG_MACH_PHYCORE_MPC5200B_TINY=y
+CONFIG_DRIVER_NET_MPC5200=y
 CONFIG_DRIVER_CFI=y
 CONFIG_CFI_BUFFER_WRITE=y
 CONFIG_ZLIB=y
diff --git a/arch/ppc/include/asm/cache.h b/arch/ppc/include/asm/cache.h
index f37af97..4f7ca86 100644
--- a/arch/ppc/include/asm/cache.h
+++ b/arch/ppc/include/asm/cache.h
@@ -6,16 +6,13 @@
 
 #include <asm/processor.h>
 
-/* bytes per L1 cache line */
-#if !defined(CONFIG_8xx) || defined(CONFIG_8260)
-#if defined(CONFIG_PPC64BRIDGE)
-#define L1_CACHE_BYTES	128
-#else
-#define	L1_CACHE_BYTES  32
-#endif /* PPC64 */
-#else
-#define	L1_CACHE_BYTES	16
-#endif /* !8xx || 8260 */
+/* bytes per L1 cache line. CPU dependent */
+#define L1_CACHE_SHIFT	5
+#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+
+#ifndef CACHELINE_SIZE
+#define CACHELINE_SIZE	L1_CACHE_BYTES
+#endif
 
 #define	L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
 #define	L1_CACHE_PAGES		8
diff --git a/arch/ppc/include/asm/common.h b/arch/ppc/include/asm/common.h
index b7c524a..732fbaf 100644
--- a/arch/ppc/include/asm/common.h
+++ b/arch/ppc/include/asm/common.h
@@ -34,4 +34,5 @@ static inline unsigned long get_pc(void)
 	return pc;
 }
 
+extern unsigned long search_exception_table(unsigned long);
 #endif /* __ASM_COMMON_H */
diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile
index b611ddf..2af000a 100644
--- a/arch/ppc/lib/Makefile
+++ b/arch/ppc/lib/Makefile
@@ -4,7 +4,7 @@ obj-y += extable.o
 obj-y += kgdb.o
 obj-y += ppcstring.o
 obj-y += ticks.o
-obj-y += time.o
+obj-$(CONFIG_MPC5200) += time-mpc5200.o
 obj-y += misc.o
 obj-$(CONFIG_CMD_BOOTM) += ppclinux.o
 obj-y += board_data.o
diff --git a/arch/ppc/lib/time.c b/arch/ppc/lib/time-mpc5200.c
similarity index 71%
rename from arch/ppc/lib/time.c
rename to arch/ppc/lib/time-mpc5200.c
index 04c71df..b35859a 100644
--- a/arch/ppc/lib/time.c
+++ b/arch/ppc/lib/time-mpc5200.c
@@ -27,28 +27,6 @@
 #include <mach/clocks.h>
 #include <asm/common.h>
 
-/* ------------------------------------------------------------------------- */
-
-static int init_timebase (void)
-{
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx)
-	volatile immap_t *immap = (immap_t *) CFG_IMMR;
-
-	/* unlock */
-	immap->im_sitk.sitk_tbk = KAPWR_KEY;
-#endif
-
-	/* reset */
-	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
-
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx)
-	/* enable */
-	immap->im_sit.sit_tbscr |= TBSCR_TBE;
-#endif
-	return (0);
-}
-/* ------------------------------------------------------------------------- */
-
 uint64_t ppc_clocksource_read(void)
 {
 	return get_ticks();
@@ -60,9 +38,10 @@ static struct clocksource cs = {
 	.shift	= 15,
 };
 
-static int clocksource_init (void)
+static int clocksource_init(void)
 {
-	init_timebase();
+	/* reset time base */
+	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
 
 	cs.mult = clocksource_hz2mult(get_timebase_clock(), cs.shift);
 
diff --git a/arch/ppc/mach-mpc5xxx/Kconfig b/arch/ppc/mach-mpc5xxx/Kconfig
index 632fb85..db4f391 100644
--- a/arch/ppc/mach-mpc5xxx/Kconfig
+++ b/arch/ppc/mach-mpc5xxx/Kconfig
@@ -1,4 +1,44 @@
-menu "Board specific settings       "
+if ARCH_MPC5XXX
+
+config BOARDINFO
+	default "Phytec Phycore mpc5200b tiny" if MACH_PHYCORE_MPC5200B_TINY
+
+config ARCH_TEXT_BASE
+	hex
+	default 0x00000000 if RELOCATABLE
+	default 0x01000000 if MACH_PHYCORE_MPC5200B_TINY
+
+config HAS_REGINFO
+	bool
+	default y if ARCH_MPC5200
+
+choice
+	prompt "Select your board"
+
+config MACH_PHYCORE_MPC5200B_TINY
+	bool "Phycore mpc5200b tiny"
+	select HAS_CFI
+	help
+	  Say Y here if you are using the Phytec Phycore MPC5200B Tiny
+	  board aka pcm030.
+endchoice
+
+config MPC5200
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+config ARCH_MPC5200
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+config MPC5xxx
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+menu "Board specific settings"
 
 config MACH_PHYCORE_MPC5200B_TINY_REV
 	int "Board Revision"
@@ -10,3 +50,4 @@ config MACH_PHYCORE_MPC5200B_TINY_REV
 	  old board you should set this option to 1
 
 endmenu
+endif
diff --git a/arch/ppc/mach-mpc5xxx/pci_mpc5200.c b/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
index d8f3b00..625d17f 100644
--- a/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
+++ b/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
@@ -125,7 +125,7 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
 
 	/* Set cache line size */
 	*(vu_long *)MPC5XXX_PCI_CFG = (*(vu_long *)MPC5XXX_PCI_CFG & ~0xff) |
-		(CONFIG_CACHELINE_SIZE / 4);
+		(CACHELINE_SIZE / 4);
 
 	/* Map MBAR to PCI space */
 	*(vu_long *)MPC5XXX_PCI_BAR0 = CFG_MBAR;
diff --git a/arch/ppc/mach-mpc5xxx/start.S b/arch/ppc/mach-mpc5xxx/start.S
index 7a4c16b..0110022 100644
--- a/arch/ppc/mach-mpc5xxx/start.S
+++ b/arch/ppc/mach-mpc5xxx/start.S
@@ -287,7 +287,7 @@ before_relocate:
 	 *
 	 */
 
-	li	r6, CONFIG_CACHELINE_SIZE		/* Cache Line Size	*/
+	li	r6, CACHELINE_SIZE
 
 	/*
 	 * Fix GOT pointer:
diff --git a/arch/ppc/mach-mpc5xxx/traps.c b/arch/ppc/mach-mpc5xxx/traps.c
index 47d1406..806b976 100644
--- a/arch/ppc/mach-mpc5xxx/traps.c
+++ b/arch/ppc/mach-mpc5xxx/traps.c
@@ -41,11 +41,7 @@
 int (*debugger_exception_handler)(struct pt_regs *) = 0;
 #endif
 
-/* Returns 0 if exception not found and fixup otherwise.  */
-extern unsigned long search_exception_table(unsigned long);
-
-/* THIS NEEDS CHANGING to use the board info structure.
-*/
+/* THIS NEEDS CHANGING to use the board info structure.  */
 #define END_OF_MEM	0x02000000
 
 /*
-- 
1.7.1


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V2 2/3] Minimal support of the MPC85xx architecture
  2012-04-13 13:04 [PATCH V2 0/3] MPC85xx support Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
@ 2012-04-13 13:04 ` Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
  3 siblings, 0 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-13 13:04 UTC (permalink / raw)
  To: s.hauer; +Cc: barebox

The directories cpu-85xx and mach-mpc85xx contain a minimal CPU support
suitable for the P2020RDB board. This includes startup code for the CPU,
peripherals and clock source initialization as well as header files
and updates to configuration and build files.

Also the introduction of the new CPU architecture and board support
leads to the update of existing header files. Are added:
 - functions and macros to manipulate bits of registers field values.
 - external declaration of cache handling functions to prevent
   compilation warnings.
 - new processor definitions.
 - macros (in replacement of existing definitions) to set 85xx TLB
   registers.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Kconfig                                  |    3 +
 arch/ppc/Makefile                                 |    7 +
 arch/ppc/cpu-85xx/Makefile                        |    7 +
 arch/ppc/cpu-85xx/cpu.c                           |  115 +++
 arch/ppc/cpu-85xx/cpu_init.c                      |  145 +++
 arch/ppc/cpu-85xx/fixed_ivor.S                    |   61 ++
 arch/ppc/cpu-85xx/release.S                       |  265 +++++
 arch/ppc/cpu-85xx/resetvec.S                      |    2 +
 arch/ppc/cpu-85xx/start.S                         | 1097 +++++++++++++++++++++
 arch/ppc/cpu-85xx/tlb.c                           |  228 +++++
 arch/ppc/cpu-85xx/traps.c                         |  300 ++++++
 arch/ppc/include/asm/bitops.h                     |   42 +
 arch/ppc/include/asm/cache.h                      |    2 +
 arch/ppc/include/asm/common.h                     |    1 +
 arch/ppc/include/asm/config.h                     |   44 +
 arch/ppc/include/asm/config_mpc85xx.h             |   37 +
 arch/ppc/include/asm/e500.h                       |   39 +
 arch/ppc/include/asm/fsl_ddr_sdram.h              |   34 +
 arch/ppc/include/asm/fsl_i2c.h                    |   10 +-
 arch/ppc/include/asm/fsl_law.h                    |   91 ++
 arch/ppc/include/asm/fsl_lbc.h                    |   67 ++
 arch/ppc/include/asm/global_data.h                |   57 ++
 arch/ppc/include/asm/io.h                         |   20 +
 arch/ppc/include/asm/mmu.h                        |   69 ++-
 arch/ppc/include/asm/processor.h                  |   44 +
 arch/ppc/lib/Makefile                             |    2 +
 arch/ppc/lib/board.c                              |   11 +-
 arch/ppc/lib/reloc.S                              |   47 +
 arch/ppc/lib/time-mpc85xx.c                       |   54 +
 arch/ppc/mach-mpc85xx/Kconfig                     |   45 +
 arch/ppc/mach-mpc85xx/Makefile                    |    5 +
 arch/ppc/mach-mpc85xx/cpuid.c                     |   69 ++
 arch/ppc/mach-mpc85xx/fsl_law.c                   |  156 +++
 arch/ppc/mach-mpc85xx/fsl_lbc.c                   |   17 +
 arch/ppc/mach-mpc85xx/include/mach/clocks.h       |   11 +
 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h |   33 +
 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h   |  132 +++
 arch/ppc/mach-mpc85xx/include/mach/mp.h           |   15 +
 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h      |   17 +
 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl   |  208 ++++
 arch/ppc/mach-mpc85xx/mp.c                        |  156 +++
 arch/ppc/mach-mpc85xx/speed.c                     |   97 ++
 include/linux/types.h                             |    2 +
 43 files changed, 3846 insertions(+), 18 deletions(-)
 create mode 100644 arch/ppc/cpu-85xx/Makefile
 create mode 100644 arch/ppc/cpu-85xx/cpu.c
 create mode 100644 arch/ppc/cpu-85xx/cpu_init.c
 create mode 100644 arch/ppc/cpu-85xx/fixed_ivor.S
 create mode 100644 arch/ppc/cpu-85xx/release.S
 create mode 100644 arch/ppc/cpu-85xx/resetvec.S
 create mode 100644 arch/ppc/cpu-85xx/start.S
 create mode 100644 arch/ppc/cpu-85xx/tlb.c
 create mode 100644 arch/ppc/cpu-85xx/traps.c
 create mode 100644 arch/ppc/include/asm/config.h
 create mode 100644 arch/ppc/include/asm/config_mpc85xx.h
 create mode 100644 arch/ppc/include/asm/e500.h
 create mode 100644 arch/ppc/include/asm/fsl_ddr_sdram.h
 create mode 100644 arch/ppc/include/asm/fsl_law.h
 create mode 100644 arch/ppc/include/asm/fsl_lbc.h
 create mode 100644 arch/ppc/include/asm/global_data.h
 create mode 100644 arch/ppc/lib/reloc.S
 create mode 100644 arch/ppc/lib/time-mpc85xx.c
 create mode 100644 arch/ppc/mach-mpc85xx/Kconfig
 create mode 100644 arch/ppc/mach-mpc85xx/Makefile
 create mode 100644 arch/ppc/mach-mpc85xx/cpuid.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_law.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_lbc.c
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/clocks.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mp.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
 create mode 100644 arch/ppc/mach-mpc85xx/mp.c
 create mode 100644 arch/ppc/mach-mpc85xx/speed.c

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 164598f..d124065 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -12,9 +12,12 @@ choice
 config ARCH_MPC5XXX
 	bool "Freescale MPC5xxx"
 
+config ARCH_MPC85XX
+	bool "Freescale MPC85xx"
 endchoice
 
 source arch/ppc/mach-mpc5xxx/Kconfig
+source arch/ppc/mach-mpc85xx/Kconfig
 source common/Kconfig
 source commands/Kconfig
 source net/Kconfig
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 2d9e47f..6ab1db1 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -7,9 +7,16 @@ ifdef CONFIG_RELOCATABLE
 CPPFLAGS += -fPIC -mrelocatable
 endif
 
+ifdef CONFIG_MPC85xx
+CPPFLAGS += -ffixed-r2 -Wa,-me500x2 -msoft-float -mno-string
+endif
 
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
+
 machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
+machine-$(CONFIG_ARCH_MPC85XX)			:= mpc85xx
+
+cpu-$(CONFIG_ARCH_MPC85XX)			:= 85xx
 
 TEXT_BASE = $(CONFIG_TEXT_BASE)
 
diff --git a/arch/ppc/cpu-85xx/Makefile b/arch/ppc/cpu-85xx/Makefile
new file mode 100644
index 0000000..be1ad21
--- /dev/null
+++ b/arch/ppc/cpu-85xx/Makefile
@@ -0,0 +1,7 @@
+obj-y 			+= cpu.o
+obj-y			+= cpu_init.o
+obj-y			+= traps.o
+obj-y			+= tlb.o
+extra-y			+= start.o
+extra-y			+= resetvec.o
+obj-$(CONFIG_MP)	+= release.o
diff --git a/arch/ppc/cpu-85xx/cpu.c b/arch/ppc/cpu-85xx/cpu.c
new file mode 100644
index 0000000..e26961e
--- /dev/null
+++ b/arch/ppc/cpu-85xx/cpu.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc
+ * Copyright 2004,2007-2011 Freescale Semiconductor, Inc.
+ * (C) Copyright 2002, 2003 Motorola Inc.
+ * Xianghua Xiao (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/config_mpc85xx.h>
+#include <asm/e500.h>
+#include <asm/common.h>
+#include <asm/config.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <mach/immap_85xx.h>
+#include <mach/clocks.h>
+
+int cpu_init_board_data(bd_t *bd)
+{
+	struct sys_info sysinfo;
+
+	get_sys_info(&sysinfo);
+
+	bd->bi_intfreq = sysinfo.freqProcessor[0];
+	bd->bi_busfreq = sysinfo.freqSystemBus;
+
+	return 0;
+}
+
+void __noreturn reset_cpu(unsigned long addr)
+{
+	void __iomem *regs = (void __iomem *)MPC85xx_GUTS_ADDR;
+
+	/* Everything after the first generation of PQ3 parts has RSTCR */
+	out_be32(regs + MPC85xx_GUTS_RSTCR_OFFSET, 0x2);  /* HRESET_REQ */
+	udelay(100);
+
+	while (1)
+		;
+}
+
+unsigned long get_timebase_clock(void)
+{
+	struct sys_info sysinfo;
+
+	get_sys_info(&sysinfo);
+
+	return (sysinfo.freqSystemBus + 4UL)/8UL;
+}
+
+/*
+ * Return the memory size based on the configuration registers.
+ */
+phys_size_t get_effective_memsize(void)
+{
+	void __iomem *regs = (void __iomem *)(MPC85xx_DDR_ADDR);
+	phys_size_t sdram_size;
+	uint san , ean;
+	uint reg;
+	int ix;
+
+	sdram_size = 0;
+
+	for (ix = 0; ix < CFG_CHIP_SELECTS_PER_CTRL; ix++) {
+		if (in_be32(regs + DDR_OFF(CS0_CONFIG) + (ix * 8)) &
+				SDRAM_CFG_MEM_EN) {
+			reg = in_be32(regs + DDR_OFF(CS0_BNDS) + (ix * 8));
+			/* start address */
+			san = (reg & 0x0fff00000) >>  16;
+			/* end address   */
+			ean = (reg & 0x00000fff);
+			sdram_size =  ((ean - san + 1) << 24);
+		}
+	}
+
+	return sdram_size;
+}
+
+long int initdram(int board_type)
+{
+	phys_size_t dram_size = 0;
+
+	dram_size = fixed_sdram();
+
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
+
+	return dram_size;
+}
diff --git a/arch/ppc/cpu-85xx/cpu_init.c b/arch/ppc/cpu-85xx/cpu_init.c
new file mode 100644
index 0000000..e8c0a9e
--- /dev/null
+++ b/arch/ppc/cpu-85xx/cpu_init.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003 Motorola Inc.
+ * Modified by Xianghua Xiao, X.Xiao@motorola.com
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/processor.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void setup_ccsrbar(void)
+{
+	u32 temp;
+	u32 mas0, mas1, mas2, mas3, mas7;
+	u32 *ccsr_virt = (u32 *)(CFG_CCSRBAR + 0x1000);
+
+	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+	/* mas1 is the same as above */
+	mas2 = FSL_BOOKE_MAS2(CFG_CCSRBAR + 0x1000, MAS2_I|MAS2_G);
+	mas3 = FSL_BOOKE_MAS3(CFG_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(CFG_CCSRBAR_DEFAULT);
+
+	write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	temp = in_be32(ccsr_virt);
+	out_be32(ccsr_virt, CFG_CCSRBAR_PHYS >> 12);
+	temp = in_be32((u32 *)CFG_CCSRBAR);
+}
+
+void cpu_init_early_f(void)
+{
+	u32 mas0, mas1, mas2, mas3, mas7;
+	int i;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (struct global_data *) (CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET);
+
+	/*
+	 * Clear initial global data.
+	 */
+	for (i = 0; i < sizeof(struct global_data); i++)
+		((char *)gd)[i] = 0;
+
+	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+	mas2 = FSL_BOOKE_MAS2(CFG_CCSRBAR, MAS2_I|MAS2_G);
+	mas3 = FSL_BOOKE_MAS3(CFG_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(CFG_CCSRBAR_PHYS);
+
+	write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	/* set up CCSR if we want it moved */
+	if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR_PHYS)
+		setup_ccsrbar();
+
+	init_laws();
+	invalidate_tlb(0);
+	init_tlbs();
+}
+
+void cpu_init_f(void)
+{
+	disable_tlb(14);
+	disable_tlb(15);
+
+	init_early_memctl_regs();
+
+	init_used_tlb_cams();
+}
+
+int l2_cache_init(void)
+{
+	void __iomem *l2cache = (void __iomem *)MPC85xx_L2_ADDR;
+	uint cache_ctl;
+	uint svr, ver;
+	u32 l2siz_field;
+
+	svr = get_svr();
+	ver = SVR_SOC_VER(svr);
+
+	asm("msync;isync");
+	cache_ctl = in_be32(l2cache + MPC85xx_L2_CTL_OFFSET);
+
+	l2siz_field = (cache_ctl >> 28) & 0x3;
+
+	switch (l2siz_field) {
+	case 0x0:
+		return -1;
+		break;
+	case 0x1:
+		cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, L2SRAM=0 */
+		break;
+	case 0x2:
+		/* set L2E=1, L2I=1, & L2SRAM=0 */
+		cache_ctl = 0xc0000000;
+		break;
+	case 0x3:
+		/* set L2E=1, L2I=1, & L2SRAM=0 */
+		cache_ctl = 0xc0000000;
+		break;
+	}
+
+	if (!(in_be32(l2cache + MPC85xx_L2_CTL_OFFSET) & MPC85xx_L2CTL_L2E)) {
+		asm("msync;isync");
+		/* invalidate & enable */
+		out_be32(l2cache + MPC85xx_L2_CTL_OFFSET, cache_ctl);
+		asm("msync;isync");
+	}
+
+	return 0;
+}
diff --git a/arch/ppc/cpu-85xx/fixed_ivor.S b/arch/ppc/cpu-85xx/fixed_ivor.S
new file mode 100644
index 0000000..a00a435
--- /dev/null
+++ b/arch/ppc/cpu-85xx/fixed_ivor.S
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * Kumar Gala <kumar.gala@freescale.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* This file is intended to be included by other asm code since
+ * we will want to execute this on both the primary core when
+ * it does a bootm and the secondary core's that get released
+ * out of the spin table.
+ */
+
+#define SET_IVOR(vector_number, vector_offset)	\
+	li	r3,vector_offset@l; 		\
+	mtspr	SPRN_IVOR##vector_number,r3;
+
+#define SET_GIVOR(vector_number, vector_offset)	\
+	li	r3,vector_offset@l; 		\
+	mtspr	SPRN_GIVOR##vector_number,r3;
+
+	SET_IVOR(0, 0x020) /* Critical Input */
+	SET_IVOR(1, 0x000) /* Machine Check */
+	SET_IVOR(2, 0x060) /* Data Storage */
+	SET_IVOR(3, 0x080) /* Instruction Storage */
+	SET_IVOR(4, 0x0a0) /* External Input */
+	SET_IVOR(5, 0x0c0) /* Alignment */
+	SET_IVOR(6, 0x0e0) /* Program */
+	SET_IVOR(7, 0x100) /* FP Unavailable */
+	SET_IVOR(8, 0x120) /* System Call */
+	SET_IVOR(9, 0x140) /* Auxiliary Processor Unavailable */
+	SET_IVOR(10, 0x160) /* Decrementer */
+	SET_IVOR(11, 0x180) /* Fixed Interval Timer */
+	SET_IVOR(12, 0x1a0) /* Watchdog Timer */
+	SET_IVOR(13, 0x1c0) /* Data TLB Error */
+	SET_IVOR(14, 0x1e0) /* Instruction TLB Error */
+	SET_IVOR(15, 0x040) /* Debug */
+
+	/* e500v1 & e500v2 only */
+	SET_IVOR(32, 0x200) /* SPE Unavailable */
+	SET_IVOR(33, 0x220) /* Embedded FP Data */
+	SET_IVOR(34, 0x240) /* Embedded FP Round */
+
+	SET_IVOR(35, 0x260) /* Performance monitor */
diff --git a/arch/ppc/cpu-85xx/release.S b/arch/ppc/cpu-85xx/release.S
new file mode 100644
index 0000000..4ddaca0
--- /dev/null
+++ b/arch/ppc/cpu-85xx/release.S
@@ -0,0 +1,265 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Kumar Gala <kumar.gala@freescale.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <asm/config_mpc85xx.h>
+#include <mach/mpc85xx.h>
+
+#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
+
+#include <mach/ppc_asm.tmpl>
+#include <asm/ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+/* To boot secondary cpus, we need a place for them to start up.
+ * Normally, they start at 0xfffffffc, but that's usually the
+ * firmware, and we don't want to have to run the firmware again.
+ * Instead, the primary cpu will set the BPTR to point here to
+ * this page.  We then set up the core, and head to
+ * start_secondary.  Note that this means that the code below
+ * must never exceed 1023 instructions (the branch at the end
+ * would then be the 1024th).
+ */
+	.globl	__secondary_start_page
+	.align	12
+__secondary_start_page:
+/* First do some preliminary setup */
+	lis	r3, HID0_EMCP@h		/* enable machine check */
+
+	ori	r3,r3,HID0_TBEN@l	/* enable Timebase */
+
+	mtspr	SPRN_HID0,r3
+
+	li	r3,(HID1_ASTME|HID1_ABE)@l	/* Addr streaming & broadcast */
+	mfspr   r0,PVR
+	andi.	r0,r0,0xff
+	cmpwi	r0,0x50@l	/* if we are rev 5.0 or greater set MBDD */
+	blt 1f
+	/* Set MBDD bit also */
+	ori r3, r3, HID1_MBDD@l
+1:
+	mtspr	SPRN_HID1,r3
+
+	/* Enable branch prediction */
+	lis	r3,BUCSR_ENABLE@h
+	ori	r3,r3,BUCSR_ENABLE@l
+	mtspr	SPRN_BUCSR,r3
+
+	/* Ensure TB is 0 */
+	li	r3,0
+	mttbl	r3
+	mttbu	r3
+
+	/* Enable/invalidate the I-Cache */
+	lis	r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
+	ori	r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
+	mtspr	SPRN_L1CSR1,r2
+1:
+	mfspr	r3,SPRN_L1CSR1
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR1_CPE|L1CSR1_ICE)@h
+	ori	r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
+	mtspr	SPRN_L1CSR1,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR1
+	andi.	r1,r3,L1CSR1_ICE@l
+	beq	2b
+
+	/* Enable/invalidate the D-Cache */
+	lis	r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
+	ori	r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
+	mtspr	SPRN_L1CSR0,r2
+1:
+	mfspr	r3,SPRN_L1CSR0
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR0_CPE|L1CSR0_DCE)@h
+	ori	r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
+	mtspr	SPRN_L1CSR0,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR0
+	andi.	r1,r3,L1CSR0_DCE@l
+	beq	2b
+
+#define toreset(x) (x - __secondary_start_page + 0xfffff000)
+
+	/* get our PIR to figure out our table entry */
+	lis	r3,toreset(__spin_table)@h
+	ori	r3,r3,toreset(__spin_table)@l
+
+	/* r10 has the base address for the entry */
+	mfspr	r0,SPRN_PIR
+	mr	r4,r0
+	slwi	r8,r4,5
+	add	r10,r3,r8
+
+#define EPAPR_MAGIC		(0x45504150)
+#define ENTRY_ADDR_UPPER	0
+#define ENTRY_ADDR_LOWER	4
+#define ENTRY_R3_UPPER		8
+#define ENTRY_R3_LOWER		12
+#define ENTRY_RESV		16
+#define ENTRY_PIR		20
+#define ENTRY_R6_UPPER		24
+#define ENTRY_R6_LOWER		28
+#define ENTRY_SIZE		32
+
+	/* setup the entry */
+	li	r3,0
+	li	r8,1
+	stw	r0,ENTRY_PIR(r10)
+	stw	r3,ENTRY_ADDR_UPPER(r10)
+	stw	r8,ENTRY_ADDR_LOWER(r10)
+	stw	r3,ENTRY_R3_UPPER(r10)
+	stw	r4,ENTRY_R3_LOWER(r10)
+	stw	r3,ENTRY_R6_UPPER(r10)
+	stw	r3,ENTRY_R6_LOWER(r10)
+
+	/* load r13 with the address of the 'bootpg' in SDRAM */
+	lis	r13,toreset(__bootpg_addr)@h
+	ori	r13,r13,toreset(__bootpg_addr)@l
+	lwz	r13,0(r13)
+
+	/* setup mapping for AS = 1, and jump there */
+	lis	r11,(MAS0_TLBSEL(1)|MAS0_ESEL(1))@h
+	mtspr	SPRN_MAS0,r11
+	lis	r11,(MAS1_VALID|MAS1_IPROT)@h
+	ori	r11,r11,(MAS1_TS|MAS1_TSIZE(BOOKE_PAGESZ_4K))@l
+	mtspr	SPRN_MAS1,r11
+	oris	r11,r13,(MAS2_I|MAS2_G)@h
+	ori	r11,r13,(MAS2_I|MAS2_G)@l
+	mtspr	SPRN_MAS2,r11
+	oris	r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@h
+	ori	r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@l
+	mtspr	SPRN_MAS3,r11
+	tlbwe
+
+	bl	1f
+1:	mflr	r11
+	/*
+	 * OR in 0xfff to create a mask of the bootpg SDRAM address.  We use
+	 * this mask to fixup the cpu spin table and the address that we want
+	 * to jump to, eg change them from 0xfffffxxx to 0x7ffffxxx if the
+	 * bootpg is at 0x7ffff000 in SDRAM.
+	 */
+	ori	r13,r13,0xfff
+	and	r11, r11, r13
+	and	r10, r10, r13
+
+	addi	r11,r11,(2f-1b)
+	mfmsr	r13
+	ori	r12,r13,MSR_IS|MSR_DS@l
+
+	mtspr	SPRN_SRR0,r11
+	mtspr	SPRN_SRR1,r12
+	rfi
+
+	/* spin waiting for addr */
+2:
+	lwz	r4,ENTRY_ADDR_LOWER(r10)
+	andi.	r11,r4,1
+	bne	2b
+	isync
+
+	/* setup IVORs to match fixed offsets */
+#include "fixed_ivor.S"
+
+	/* get the upper bits of the addr */
+	lwz	r11,ENTRY_ADDR_UPPER(r10)
+
+	/* setup branch addr */
+	mtspr	SPRN_SRR0,r4
+
+	/* mark the entry as released */
+	li	r8,3
+	stw	r8,ENTRY_ADDR_LOWER(r10)
+
+	/* mask by ~64M to setup our tlb we will jump to */
+	rlwinm	r12,r4,0,0,5
+
+	/* setup r3, r4, r5, r6, r7, r8, r9 */
+	lwz	r3,ENTRY_R3_LOWER(r10)
+	li	r4,0
+	li	r5,0
+	lwz	r6,ENTRY_R6_LOWER(r10)
+	lis	r7,(64*1024*1024)@h
+	li	r8,0
+	li	r9,0
+
+	/* load up the pir */
+	lwz	r0,ENTRY_PIR(r10)
+	mtspr	SPRN_PIR,r0
+	mfspr	r0,SPRN_PIR
+	stw	r0,ENTRY_PIR(r10)
+
+	mtspr	IVPR,r12
+/*
+ * Coming here, we know the cpu has one TLB mapping in TLB1[0]
+ * which maps 0xfffff000-0xffffffff one-to-one.  We set up a
+ * second mapping that maps addr 1:1 for 64M, and then we jump to
+ * addr
+ */
+	lis	r10,(MAS0_TLBSEL(1)|MAS0_ESEL(0))@h
+	mtspr	SPRN_MAS0,r10
+	lis	r10,(MAS1_VALID|MAS1_IPROT)@h
+	ori	r10,r10,(MAS1_TSIZE(BOOKE_PAGESZ_64M))@l
+	mtspr	SPRN_MAS1,r10
+	/* WIMGE = 0b00000 for now */
+	mtspr	SPRN_MAS2,r12
+	ori	r12,r12,(MAS3_SX|MAS3_SW|MAS3_SR)
+	mtspr	SPRN_MAS3,r12
+	tlbwe
+
+/* Now we have another mapping for this page, so we jump to that
+ * mapping
+ */
+	mtspr	SPRN_SRR1,r13
+	rfi
+
+	/*
+	 * Allocate some space for the SDRAM address of the bootpg.
+	 * This variable has to be in the boot page so that it can
+	 * be accessed by secondary cores when they come out of reset.
+	 */
+	.globl __bootpg_addr
+__bootpg_addr:
+	.long	0
+
+	.align L1_CACHE_SHIFT
+	.globl __spin_table
+__spin_table:
+	.space MAX_CPUS*ENTRY_SIZE
+
+	/* Fill in the empty space.  The actual reset vector is
+	 * the last word of the page */
+__secondary_start_code_end:
+	.space 4092 - (__secondary_start_code_end - __secondary_start_page)
+__secondary_reset_vector:
+	b	__secondary_start_page
diff --git a/arch/ppc/cpu-85xx/resetvec.S b/arch/ppc/cpu-85xx/resetvec.S
new file mode 100644
index 0000000..29555d4
--- /dev/null
+++ b/arch/ppc/cpu-85xx/resetvec.S
@@ -0,0 +1,2 @@
+	.section .resetvec,"ax"
+	b _start_e500
diff --git a/arch/ppc/cpu-85xx/start.S b/arch/ppc/cpu-85xx/start.S
new file mode 100644
index 0000000..491f196
--- /dev/null
+++ b/arch/ppc/cpu-85xx/start.S
@@ -0,0 +1,1097 @@
+/*
+ * Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2003  Motorola,Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * U-Boot Startup Code for Motorola 85xx PowerPC based Embedded Boards
+ *
+ * The processor starts at 0xfffffffc and the code is first executed in the
+ * last 4K page(0xfffff000-0xffffffff) in flash/rom.
+ */
+
+#include <config.h>
+#include <asm/config.h>
+#include <mach/mpc85xx.h>
+
+#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
+
+#include <asm/processor.h>
+#include <mach/ppc_asm.tmpl>
+#include <asm/ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#undef	MSR_KERNEL
+#define MSR_KERNEL ( MSR_ME )	/* Machine Check */
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r12 to access the GOT
+ */
+	START_GOT
+	GOT_ENTRY(_GOT2_TABLE_)
+	GOT_ENTRY(_FIXUP_TABLE_)
+
+	GOT_ENTRY(_start)
+	GOT_ENTRY(_start_of_vectors)
+	GOT_ENTRY(_end_of_vectors)
+	GOT_ENTRY(transfer_to_handler)
+	GOT_ENTRY(__init_end)
+	GOT_ENTRY(_end)
+	GOT_ENTRY(__bss_start)
+	END_GOT
+
+/*
+ * e500 Startup -- after reset only the last 4KB of the effective
+ * address space is mapped in the MMU L2 TLB1 Entry0. The .bootpg
+ * section is located at THIS LAST page and basically does three
+ * things: clear some registers, set up exception tables and
+ * add more TLB entries for 'larger spaces'(e.g. the boot rom) to
+ * continue the boot procedure.
+ * Once the boot rom is mapped by TLB entries we can proceed
+ * with normal startup.
+ */
+
+	.section .bootpg,"ax"
+	.globl _start_e500
+
+_start_e500:
+
+/* clear registers/arrays not reset by hardware */
+
+	/* L1 */
+	li	r0,2
+	mtspr	L1CSR0,r0	/* invalidate d-cache */
+	mtspr	L1CSR1,r0	/* invalidate i-cache */
+
+	mfspr	r1,DBSR
+	mtspr	DBSR,r1		/* Clear all valid bits */
+
+	/* Enable/invalidate the I-Cache */
+	lis	r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
+	ori	r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
+	mtspr	SPRN_L1CSR1,r2
+1:
+	mfspr	r3,SPRN_L1CSR1
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR1_CPE|L1CSR1_ICE)@h
+	ori	r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
+	mtspr	SPRN_L1CSR1,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR1
+	andi.	r1,r3,L1CSR1_ICE@l
+	beq	2b
+
+	/* Enable/invalidate the D-Cache */
+	lis	r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
+	ori	r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
+	mtspr	SPRN_L1CSR0,r2
+1:
+	mfspr	r3,SPRN_L1CSR0
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR0_CPE|L1CSR0_DCE)@h
+	ori	r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
+	mtspr	SPRN_L1CSR0,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR0
+	andi.	r1,r3,L1CSR0_DCE@l
+	beq	2b
+
+	/* Setup interrupt vectors */
+	lis	r1,TEXT_BASE@h
+	mtspr	IVPR,r1
+
+	li	r1,0x0100
+	mtspr	IVOR0,r1	/* 0: Critical input */
+	li	r1,0x0200
+	mtspr	IVOR1,r1	/* 1: Machine check */
+	li	r1,0x0300
+	mtspr	IVOR2,r1	/* 2: Data storage */
+	li	r1,0x0400
+	mtspr	IVOR3,r1	/* 3: Instruction storage */
+	li	r1,0x0500
+	mtspr	IVOR4,r1	/* 4: External interrupt */
+	li	r1,0x0600
+	mtspr	IVOR5,r1	/* 5: Alignment */
+	li	r1,0x0700
+	mtspr	IVOR6,r1	/* 6: Program check */
+	li	r1,0x0800
+	mtspr	IVOR7,r1	/* 7: floating point unavailable */
+	li	r1,0x0900
+	mtspr	IVOR8,r1	/* 8: System call */
+	/* 9: Auxiliary processor unavailable(unsupported) */
+	li	r1,0x0a00
+	mtspr	IVOR10,r1	/* 10: Decrementer */
+	li	r1,0x0b00
+	mtspr	IVOR11,r1	/* 11: Interval timer */
+	li	r1,0x0c00
+	mtspr	IVOR12,r1	/* 12: Watchdog timer */
+	li	r1,0x0d00
+	mtspr	IVOR13,r1	/* 13: Data TLB error */
+	li	r1,0x0e00
+	mtspr	IVOR14,r1	/* 14: Instruction TLB error */
+	li	r1,0x0f00
+	mtspr	IVOR15,r1	/* 15: Debug */
+
+	/* Clear and set up some registers. */
+	li      r0,0x0000
+	lis	r1,0xffff
+	mtspr	DEC,r0			/* prevent dec exceptions */
+	mttbl	r0			/* prevent fit & wdt exceptions */
+	mttbu	r0
+	mtspr	TSR,r1			/* clear all timer exception status */
+	mtspr	TCR,r0			/* disable all */
+	mtspr	ESR,r0			/* clear exception syndrome register */
+	mtspr	MCSR,r0			/* machine check syndrome register */
+	mtxer	r0			/* clear integer exception register */
+
+	/* Enable Time Base and Select Time Base Clock */
+	lis	r0,HID0_EMCP@h		/* Enable machine check */
+	ori	r0,r0,HID0_TBEN@l	/* Enable Timebase */
+	mtspr	HID0,r0
+
+	li	r0,(HID1_ASTME|HID1_ABE)@l	/* Addr streaming & broadcast */
+	mfspr	r3,PVR
+	andi.	r3,r3, 0xff
+	cmpwi	r3,0x50@l	/* if we are rev 5.0 or greater set MBDD */
+	blt 1f
+	/* Set MBDD bit also */
+	ori r0, r0, HID1_MBDD@l
+1:
+	mtspr	HID1,r0
+
+	/* Enable Branch Prediction */
+#if defined(CFG_BTB)
+	lis	r0,BUCSR_ENABLE@h
+	ori	r0,r0,BUCSR_ENABLE@l
+	mtspr	SPRN_BUCSR,r0
+#endif
+
+	lis     r6,FSL_BOOKE_MAS0(1, 15, 0)@h
+	ori     r6,r6,FSL_BOOKE_MAS0(1, 15, 0)@l
+
+	/* create a temp mapping in AS=1 to the 4M boot window */
+	lis     r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@h
+	ori     r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@l
+
+	lis     r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@h
+	ori     r8,r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@l
+
+	/* The 85xx has the default boot window 0xff800000 - 0xffffffff */
+	lis     r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
+	ori     r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
+
+	mtspr   MAS0,r6
+	mtspr   MAS1,r7
+	mtspr   MAS2,r8
+	mtspr   MAS3,r9
+	isync
+	msync
+	tlbwe
+
+	/* create a temp mapping in AS=1 to the stack */
+	lis     r6,FSL_BOOKE_MAS0(1, 14, 0)@h
+	ori     r6,r6,FSL_BOOKE_MAS0(1, 14, 0)@l
+
+	lis     r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@h
+	ori     r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@l
+
+	lis     r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@h
+	ori     r8,r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@l
+
+	lis     r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
+                                  (MAS3_SX|MAS3_SW|MAS3_SR))@h
+	ori     r9,r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
+                                     (MAS3_SX|MAS3_SW|MAS3_SR))@l
+
+	mtspr   MAS0,r6
+	mtspr   MAS1,r7
+	mtspr   MAS2,r8
+	mtspr   MAS3,r9
+	isync
+	msync
+	tlbwe
+
+	lis	r6,MSR_IS|MSR_DS@h
+	ori	r6,r6,MSR_IS|MSR_DS@l
+	lis	r7,switch_as@h
+	ori	r7,r7,switch_as@l
+
+	mtspr	SPRN_SRR0,r7
+	mtspr	SPRN_SRR1,r6
+	rfi
+
+switch_as:
+/* L1 DCache is used for initial RAM */
+
+	/* Allocate initial RAM in data cache.  */
+	lis	r3,CFG_INIT_RAM_ADDR@h
+	ori	r3,r3,CFG_INIT_RAM_ADDR@l
+	mfspr	r2, L1CFG0
+	andi.	r2, r2, 0x1ff
+	/* cache size * 1024 / (2 * L1 line size) */
+	slwi	r2, r2, (10 - 1 - L1_CACHE_SHIFT)
+	mtctr	r2
+	li	r0,0
+1:
+	dcbz	r0,r3
+	dcbtls	0,r0,r3
+	addi	r3,r3,CACHELINE_SIZE
+	bdnz	1b
+
+	/*
+	 * Jump out the last 4K page and continue to 'normal' start.
+	 * Calculate absolute address in FLASH and jump there.
+	 */
+	lis	r3,TEXT_BASE@h
+	ori	r3,r3,TEXT_BASE@l
+	addi	r3,r3,_start_cont - _start + _START_OFFSET
+	mtlr	r3
+	blr
+
+	.text
+	.globl	_start
+_start:
+	.long	0x62626F78		/* Barebox Magic Number */
+
+	.align	4
+	.globl	_start_cont
+_start_cont:
+	/* Setup the stack in initial RAM,could be L2-as-SRAM or L1 dcache */
+	lis	r1,CFG_INIT_RAM_ADDR@h
+	ori	r1,r1,CFG_INIT_SP_OFFSET@l
+
+	li	r0,0
+	stwu	r0,-4(r1)
+	stwu	r0,-4(r1)		/* Terminate call chain */
+
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	lis	r0,RESET_VECTOR@h	/* Address of reset vector */
+	ori	r0,r0,RESET_VECTOR@l
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	stw	r0,+12(r1)		/* Save return addr (underflow vect) */
+
+	GET_GOT
+	bl	cpu_init_early_f
+
+	/* switch back to AS = 0 */
+	lis	r3,(MSR_CE|MSR_ME|MSR_DE)@h
+	ori	r3,r3,(MSR_CE|MSR_ME|MSR_DE)@l
+	mtmsr	r3
+	isync
+
+	bl      cpu_init_f
+	bl      initdram
+	b       relocate_code
+	isync
+
+	/* NOTREACHED - board_init_f() does not return */
+
+	. = EXC_OFF_SYS_RESET
+	.globl	_start_of_vectors
+_start_of_vectors:
+
+/* Critical input. */
+	CRIT_EXCEPTION(0x0100, CriticalInput, CritcalInputException)
+
+/* Machine check */
+	MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+	STD_EXCEPTION(0x0300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+	STD_EXCEPTION(0x0400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+#ifdef CFG_USE_IRQ
+	STD_EXCEPTION(0x0500, ExtInterrupt, ExtIntException)
+#endif
+
+/* Alignment exception. */
+	. = 0x0600
+Alignment:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	mfspr	r4,DAR
+	stw	r4,_DAR(r21)
+	mfspr	r5,DSISR
+	stw	r5,_DSISR(r21)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE)
+
+/* Program check exception */
+	. = 0x0700
+ProgramCheck:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException,
+		MSR_KERNEL, COPY_EE)
+
+	/* No FPU on MPC85xx.  This exception is not supposed to happen.
+	*/
+	STD_EXCEPTION(0x0800, FPUnavailable, UnknownException)
+
+	. = 0x0900
+/*
+ * r0 - SYSCALL number
+ * r3-... arguments
+ */
+SystemCall:
+	addis	r11,r0,0	/* get functions table addr */
+	ori	r11,r11,0	/* Note: this code is patched in trap_init */
+	addis	r12,r0,0	/* get number of functions */
+	ori	r12,r12,0
+
+	cmplw	0,r0,r12
+	bge	1f
+
+	rlwinm	r0,r0,2,0,31	/* fn_addr = fn_tbl[r0] */
+	add	r11,r11,r0
+	lwz	r11,0(r11)
+
+	li	r20,0xd00-4	/* Get stack pointer */
+	lwz	r12,0(r20)
+	subi	r12,r12,12	/* Adjust stack pointer */
+	li	r0,0xc00+_end_back-SystemCall
+	cmplw	0,r0,r12	/* Check stack overflow */
+	bgt	1f
+	stw	r12,0(r20)
+
+	mflr	r0
+	stw	r0,0(r12)
+	mfspr	r0,SRR0
+	stw	r0,4(r12)
+	mfspr	r0,SRR1
+	stw	r0,8(r12)
+
+	li	r12,0xc00+_back-SystemCall
+	mtlr	r12
+	mtspr	SRR0,r11
+
+1:	SYNC
+	rfi
+_back:
+
+	mfmsr	r11			/* Disable interrupts */
+	li	r12,0
+	ori	r12,r12,MSR_EE
+	andc	r11,r11,r12
+	SYNC				/* Some chip revs need this... */
+	mtmsr	r11
+	SYNC
+
+	li	r12,0xd00-4		/* restore regs */
+	lwz	r12,0(r12)
+
+	lwz	r11,0(r12)
+	mtlr	r11
+	lwz	r11,4(r12)
+	mtspr	SRR0,r11
+	lwz	r11,8(r12)
+	mtspr	SRR1,r11
+
+	addi	r12,r12,12		/* Adjust stack pointer */
+	li	r20,0xd00-4
+	stw	r12,0(r20)
+
+	SYNC
+	rfi
+_end_back:
+
+	STD_EXCEPTION(0x0a00, Decrementer, UnknownException)
+	STD_EXCEPTION(0x0b00, IntervalTimer, UnknownException)
+	STD_EXCEPTION(0x0c00, WatchdogTimer, UnknownException)
+
+	STD_EXCEPTION(0x0d00, DataTLBError, UnknownException)
+	STD_EXCEPTION(0x0e00, InstructionTLBError, UnknownException)
+
+	CRIT_EXCEPTION(0x0f00, DebugBreakpoint, DebugException )
+
+	.globl	_end_of_vectors
+_end_of_vectors:
+
+
+	. = . + (0x100 - ( . & 0xff ))	/* align for debug */
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+	.globl	transfer_to_handler
+transfer_to_handler:
+	stw	r22,_NIP(r21)
+	lis	r22,MSR_POW@h
+	andc	r23,r23,r22
+	stw	r23,_MSR(r21)
+	SAVE_GPR(7, r21)
+	SAVE_4GPRS(8, r21)
+	SAVE_8GPRS(12, r21)
+	SAVE_8GPRS(24, r21)
+
+	mflr	r23
+	andi.	r24,r23,0x3f00		/* get vector offset  */
+	stw	r24,TRAP(r21)
+	li	r22,0
+	stw	r22,RESULT(r21)
+	mtspr	SPRG2,r22		/* r1 is now kernel sp */
+
+	lwz	r24,0(r23)		/* virtual address of handler 	*/
+	lwz	r23,4(r23)		/* where to go when done 	*/
+	mtspr	SRR0,r24
+	mtspr	SRR1,r20
+	mtlr	r23
+	SYNC
+	rfi				/* jump to handler, enable MMU  */
+
+int_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SRR0,r2
+	mtspr	SRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfi
+
+crit_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SPRN_CSRR0,r2
+	mtspr	SPRN_CSRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfci
+
+mck_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SPRN_MCSRR0,r2
+	mtspr	SPRN_MCSRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfmci
+
+/*
+ * Cache functions.
+ */
+.globl invalidate_icache
+invalidate_icache:
+	mfspr	r0,L1CSR1
+	ori	r0,r0,L1CSR1_ICFI
+	msync
+	isync
+	mtspr	L1CSR1,r0
+	isync
+	blr				/* entire I cache */
+
+.globl invalidate_dcache
+invalidate_dcache:
+	mfspr	r0,L1CSR0
+	ori	r0,r0,L1CSR0_DCFI
+	msync
+	isync
+	mtspr	L1CSR0,r0
+	isync
+	blr
+
+	.globl	icache_enable
+icache_enable:
+	mflr	r8
+	bl	invalidate_icache
+	mtlr	r8
+	isync
+	mfspr	r4,L1CSR1
+	ori	r4,r4,0x0001
+	oris	r4,r4,0x0001
+	mtspr	L1CSR1,r4
+	isync
+	blr
+
+	.globl	icache_disable
+icache_disable:
+	mfspr	r0,L1CSR1
+	lis	r3,0
+	ori	r3,r3,L1CSR1_ICE
+	andc	r0,r0,r3
+	mtspr	L1CSR1,r0
+	isync
+	blr
+
+	.globl	icache_status
+icache_status:
+	mfspr	r3,L1CSR1
+	andi.	r3,r3,L1CSR1_ICE
+	blr
+
+	.globl	dcache_enable
+dcache_enable:
+	mflr	r8
+	bl	invalidate_dcache
+	mtlr	r8
+	isync
+	mfspr	r0,L1CSR0
+	ori	r0,r0,0x0001
+	oris	r0,r0,0x0001
+	msync
+	isync
+	mtspr	L1CSR0,r0
+	isync
+	blr
+
+	.globl	dcache_disable
+dcache_disable:
+	mfspr	r3,L1CSR0
+	lis	r4,0
+	ori	r4,r4,L1CSR0_DCE
+	andc	r3,r3,r4
+	mtspr	L1CSR0,r3
+	isync
+	blr
+
+	.globl	dcache_status
+dcache_status:
+	mfspr	r3,L1CSR0
+	andi.	r3,r3,L1CSR0_DCE
+	blr
+
+	.globl get_pir
+get_pir:
+	mfspr	r3,PIR
+	blr
+
+	.globl get_pvr
+get_pvr:
+	mfspr	r3,PVR
+	blr
+
+	.globl get_svr
+get_svr:
+	mfspr	r3,SVR
+	blr
+
+	.globl wr_tcr
+wr_tcr:
+	mtspr	TCR,r3
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in8
+ * Description:	 Input 8 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in8
+in8:
+	lbz	r3,0x0000(r3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out8
+ * Description:	 Output 8 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out8
+out8:
+	stb	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out16
+ * Description:	 Output 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out16
+out16:
+	sth	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out16r
+ * Description:	 Byte reverse and output 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out16r
+out16r:
+	sthbrx	r4,r0,r3
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out32
+ * Description:	 Output 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out32
+out32:
+	stw	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out32r
+ * Description:	 Byte reverse and output 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out32r
+out32r:
+	stwbrx	r4,r0,r3
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in16
+ * Description:	 Input 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in16
+in16:
+	lhz	r3,0x0000(r3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in16r
+ * Description:	 Input 16 bits and byte reverse
+ *--------------------------------------------------------------------------- */
+	.globl	in16r
+in16r:
+	lhbrx	r3,r0,r3
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in32
+ * Description:	 Input 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in32
+in32:
+	lwz	3,0x0000(3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in32r
+ * Description:	 Input 32 bits and byte reverse
+ *--------------------------------------------------------------------------- */
+	.globl	in32r
+in32r:
+	lwbrx	r3,r0,r3
+	blr
+
+/*
+ * void write_tlb(mas0, mas1, mas2, mas3, mas7)
+ */
+	.globl	write_tlb
+write_tlb:
+	mtspr	MAS0,r3
+	mtspr	MAS1,r4
+	mtspr	MAS2,r5
+	mtspr	MAS3,r6
+	li	r3,0
+	isync
+	tlbwe
+	msync
+	isync
+	blr
+
+/*
+ * void relocate_code (end of ram)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+	.globl	relocate_code
+relocate_code:
+	mr	r9, r3			/* Save end of RAM 	*/
+
+	lis	r10, (_end - _start)@h	/* Size			*/
+	ori	r10, r10, (_end - _start)@l
+	sub	r3,  r3, r10
+
+	/* 64KB aligned */
+	lis	r10, 0xffff0000@h
+	ori	r10, r10, 0xffff0000@l
+	and	r3, r3, r10
+
+	mr	r1, r3		/* Set new stack just below barebox code */
+	mr	r10, r3 	/* Save copy of Destination Address */
+
+	bl 	calc_source
+calc_source:
+	mfspr	r4, LR	/* r4 = address in memory (flash, RAM) */
+	subi	r4, r4, (calc_source - _start)
+
+	GET_GOT
+	lis	r5, __init_size@h
+	ori	r5, r5, __init_size@l
+
+	li	r6,CACHELINE_SIZE		/* Cache Line Size	*/
+
+	/*
+	 * Fix GOT pointer:
+	 *
+	 * New GOT-PTR = (old GOT-PTR - TEXT_BASE) + Destination Address
+	 *
+	 * Offset:
+	 */
+	sub	r15,r10,r4
+
+	/* First our own GOT */
+	add	r12,r12,r15
+	/*add	r14,r14,r15 */
+	/* then the one used by the C code */
+	add	r30,r30,r15
+
+	/*
+	 * Now relocate code
+	 */
+
+	cmplw	cr1,r3,r4
+	addi	r0,r5,3
+	srwi.	r0,r0,2
+	beq	cr1,4f		/* In place copy is not necessary	*/
+	beq	7f		/* Protect against 0 count		*/
+	mtctr	r0
+	bge	cr1,2f
+
+	la	r8,-4(r4)
+	la	r7,-4(r3)
+1:	lwzu	r0,4(r8)
+	stwu	r0,4(r7)
+	bdnz	1b
+	b	4f
+
+2:	slwi	r0,r0,2
+	add	r8,r4,r0
+	add	r7,r3,r0
+3:	lwzu	r0,-4(r8)
+	stwu	r0,-4(r7)
+	bdnz	3b
+
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4:	cmpwi	r6,0
+	add	r5,r3,r5
+	beq	7f		/* Always flush prefetch queue in any case */
+	subi	r0,r6,1
+	andc	r3,r3,r0
+	mr	r4,r3
+5:	dcbst	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	5b
+	sync			/* Wait for all dcbst to complete on bus */
+	mr	r4,r3
+6:	icbi	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	6b
+7:	sync			/* Wait for all icbi to complete on bus */
+	isync
+
+	/*
+	 * Re-point the IVPR at RAM
+	 */
+	mtspr	IVPR,r10
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+
+	addi	r0,r10,in_ram - _start + _START_OFFSET
+	mtlr	r0
+	blr				/* NEVER RETURNS! */
+
+	.globl	in_ram
+in_ram:
+
+	/*
+	 * Relocation Function, r12 point to got2+0x8000
+	 *
+	 * Adjust got2 pointers, no need to check for 0, this code
+	 * already puts a few entries in the table.
+	 */
+	li	r0,__got2_entries@sectoff@l
+	la	r3,GOT(_GOT2_TABLE_)
+	lwz	r11,GOT(_GOT2_TABLE_)
+	mtctr	r0
+	sub	r11,r3,r11
+	addi	r3,r3,-4
+1:	lwzu	r0,4(r3)
+	cmpwi	r0,0
+	beq-	2f
+	add	r0,r0,r11
+	stw	r0,0(r3)
+2:	bdnz	1b
+
+	/*
+	 * Now adjust the fixups and the pointers to the fixups
+	 * in case we need to move ourselves again.
+	 */
+	li	r0,__fixup_entries@sectoff@l
+	lwz	r3,GOT(_FIXUP_TABLE_)
+	cmpwi	r0,0
+	mtctr	r0
+	addi	r3,r3,-4
+	beq	4f
+3:	lwzu	r4,4(r3)
+	lwzux	r0,r4,r11
+	cmpwi	r0,0
+	add	r0,r0,r11
+	stw	r4,0(r3)
+	beq-	5f
+	stw	r0,0(r4)
+5:	bdnz	3b
+4:
+clear_bss:
+	/*
+	 * Now clear BSS segment
+	 */
+	lwz	r3,GOT(__bss_start)
+	lwz	r4,GOT(_end)
+
+	cmplw	0,r3,r4
+	beq	6f
+
+	li	r0,0
+5:
+	stw	r0,0(r3)
+	addi	r3,r3,4
+	cmplw	0,r3,r4
+	bne	5b
+6:
+
+	mr 	r3, r10		/* Destination Address      */
+	bl 	board_init_r
+
+	/*
+	 * Copy exception vector code to low memory
+	 *
+	 * r3: dest_addr
+	 * r7: source address, r8: end address, r9: target address
+	 */
+	.globl	trap_init
+trap_init:
+	mflr	r4			/* save link register		*/
+	GET_GOT
+	lwz	r7,GOT(_start_of_vectors)
+	lwz	r8,GOT(_end_of_vectors)
+
+	li	r9,0x100		/* reset vector always at 0x100 */
+
+	cmplw	0,r7,r8
+	bgelr				/* return if r7>=r8 - just in case */
+1:
+	lwz	r0,0(r7)
+	stw	r0,0(r9)
+	addi	r7,r7,4
+	addi	r9,r9,4
+	cmplw	0,r7,r8
+	bne	1b
+
+	/*
+	 * relocate `hdlr' and `int_return' entries
+	 */
+	li	r7,.L_CriticalInput - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_MachineCheck - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_DataStorage - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_InstStorage - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_Alignment - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_ProgramCheck - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_FPUnavailable - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_Decrementer - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_IntervalTimer - _start + _START_OFFSET
+	li	r8,_end_of_vectors - _start + _START_OFFSET
+2:
+	bl	trap_reloc
+	addi	r7,r7,0x100		/* next exception vector	*/
+	cmplw	0,r7,r8
+	blt	2b
+
+	lis	r7,0x0
+	mtspr	IVPR,r7
+
+	mtlr	r4			/* restore link register	*/
+	blr
+
+
+.globl _text_base
+_text_base:
+	.long TEXT_BASE
+
+.globl unlock_ram_in_cache
+unlock_ram_in_cache:
+	/* invalidate the INIT_RAM section */
+	lis	r3,(CFG_INIT_RAM_ADDR & ~(CACHELINE_SIZE-1))@h
+	ori	r3,r3,(CFG_INIT_RAM_ADDR & ~(CACHELINE_SIZE-1))@l
+	mfspr	r4,L1CFG0
+	andi.	r4,r4,0x1ff
+	slwi	r4,r4,(10 - 1 - L1_CACHE_SHIFT)
+	mtctr	r4
+1:	dcbi	r0,r3
+	addi	r3,r3,CACHELINE_SIZE
+	bdnz	1b
+	sync
+
+	/* Invalidate the TLB entries for the cache */
+	lis	r3,CFG_INIT_RAM_ADDR@h
+	ori	r3,r3,CFG_INIT_RAM_ADDR@l
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	isync
+	blr
+
+.globl flush_dcache
+flush_dcache:
+	mfspr	r3,SPRN_L1CFG0
+
+	rlwinm	r5,r3,9,3	/* Extract cache block size */
+	twlgti	r5,1		/* Only 32 and 64 byte cache blocks
+				 * are currently defined.
+				 */
+	li	r4,32
+	subfic	r6,r5,2		/* r6 = log2(1KiB / cache block size) -
+				 *      log2(number of ways)
+				 */
+	slw	r5,r4,r5	/* r5 = cache block size */
+
+	rlwinm	r7,r3,0,0xff	/* Extract number of KiB in the cache */
+	mulli	r7,r7,13	/* An 8-way cache will require 13
+				 * loads per set.
+				 */
+	slw	r7,r7,r6
+
+	/* save off HID0 and set DCFA */
+	mfspr	r8,SPRN_HID0
+	ori	r9,r8,HID0_DCFA@l
+	mtspr	SPRN_HID0,r9
+	isync
+
+	lis	r4,0
+	mtctr	r7
+
+1:	lwz	r3,0(r4)	/* Load... */
+	add	r4,r4,r5
+	bdnz	1b
+
+	msync
+	lis	r4,0
+	mtctr	r7
+
+1:	dcbf	0,r4		/* ...and flush. */
+	add	r4,r4,r5
+	bdnz	1b
+
+	/* restore HID0 */
+	mtspr	SPRN_HID0,r8
+	isync
+
+	blr
+
+.globl setup_ivors
+setup_ivors:
+
+#include "fixed_ivor.S"
+	blr
diff --git a/arch/ppc/cpu-85xx/tlb.c b/arch/ppc/cpu-85xx/tlb.c
new file mode 100644
index 0000000..6f22424
--- /dev/null
+++ b/arch/ppc/cpu-85xx/tlb.c
@@ -0,0 +1,228 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/global_data.h>
+#include <asm/mmu.h>
+#include <asm/bitops.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void invalidate_tlb(u8 tlb)
+{
+	if (tlb == 0)
+		mtspr(MMUCSR0, 0x4);
+	if (tlb == 1)
+		mtspr(MMUCSR0, 0x2);
+}
+
+void init_tlbs(void)
+{
+	int i;
+
+	for (i = 0; i < num_tlb_entries; i++) {
+		write_tlb(tlb_table[i].mas0,
+			  tlb_table[i].mas1,
+			  tlb_table[i].mas2,
+			  tlb_table[i].mas3,
+			  tlb_table[i].mas7);
+	}
+
+	return ;
+}
+
+static inline void use_tlb_cam(u8 idx)
+{
+	int i = idx / 32;
+	int bit = idx % 32;
+
+	gd->used_tlb_cams[i] |= (1 << bit);
+}
+
+static inline void free_tlb_cam(u8 idx)
+{
+	int i = idx / 32;
+	int bit = idx % 32;
+
+	gd->used_tlb_cams[i] &= ~(1 << bit);
+}
+
+void init_used_tlb_cams(void)
+{
+	int i;
+	unsigned int num_cam = mfspr(SPRN_TLB1CFG) & 0xfff;
+
+	for (i = 0; i < ((NUM_TLBCAMS+31)/32); i++)
+		gd->used_tlb_cams[i] = 0;
+
+	/* walk all the entries */
+	for (i = 0; i < num_cam; i++) {
+		mtspr(MAS0, FSL_BOOKE_MAS0(1, i, 0));
+		asm volatile("tlbre;isync");
+		if (mfspr(MAS1) & MAS1_VALID)
+			use_tlb_cam(i);
+	}
+}
+
+static int find_free_tlbcam(void)
+{
+	int i;
+	u32 idx;
+
+	for (i = 0; i < ((NUM_TLBCAMS+31)/32); i++) {
+		idx = ffz(gd->used_tlb_cams[i]);
+
+		if (idx != 32)
+			break;
+	}
+
+	idx += i * 32;
+
+	if (idx >= NUM_TLBCAMS)
+		return -1;
+
+	return idx;
+}
+
+void set_tlb(u8 tlb, u32 epn, u64 rpn,
+	     u8 perms, u8 wimge,
+	     u8 ts, u8 esel, u8 tsize, u8 iprot)
+{
+	u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+
+	if (tlb == 1)
+		use_tlb_cam(esel);
+
+	_mas0 = FSL_BOOKE_MAS0(tlb, esel, 0);
+	_mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize);
+	_mas2 = FSL_BOOKE_MAS2(epn, wimge);
+	_mas3 = FSL_BOOKE_MAS3(rpn, 0, perms);
+	_mas7 = FSL_BOOKE_MAS7(rpn);
+
+	write_tlb(_mas0, _mas1, _mas2, _mas3, _mas7);
+
+}
+
+void disable_tlb(u8 esel)
+{
+	u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+
+	free_tlb_cam(esel);
+
+	_mas0 = FSL_BOOKE_MAS0(1, esel, 0);
+	_mas1 = 0;
+	_mas2 = 0;
+	_mas3 = 0;
+	_mas7 = 0;
+
+	mtspr(MAS0, _mas0);
+	mtspr(MAS1, _mas1);
+	mtspr(MAS2, _mas2);
+	mtspr(MAS3, _mas3);
+	asm volatile("isync;msync;tlbwe;isync");
+}
+
+static void tlbsx(const unsigned *addr)
+{
+	__asm__ __volatile__ ("tlbsx 0,%0" : : "r" (addr), "m" (*addr));
+}
+
+/* return -1 if we didn't find anything */
+int find_tlb_idx(void *addr, u8 tlbsel)
+{
+	u32 _mas0, _mas1;
+
+	/* zero out Search PID, AS */
+	mtspr(MAS6, 0);
+
+	tlbsx(addr);
+
+	_mas0 = mfspr(MAS0);
+	_mas1 = mfspr(MAS1);
+
+	/* we found something, and its in the TLB we expect */
+	if ((MAS1_VALID & _mas1) &&
+		(MAS0_TLBSEL(tlbsel) == (_mas0 & MAS0_TLBSEL_MSK))) {
+		return (_mas0 & MAS0_ESEL_MSK) >> 16;
+	}
+
+	return -1;
+}
+
+static unsigned int setup_ddr_tlbs_phys(phys_addr_t p_addr,
+					unsigned int memsize_in_meg)
+{
+	int i;
+	unsigned int tlb_size;
+	unsigned int wimge = 0;
+	unsigned int ram_tlb_address = (unsigned int)CFG_SDRAM_BASE;
+	unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf;
+	u64 size, memsize = (u64)memsize_in_meg << 20;
+
+	size = min((u64)memsize, (u64)MAX_MEM_MAPPED);
+
+	/* Convert (4^max) kB to (2^max) bytes */
+	max_cam = max_cam * 2 + 10;
+
+	for (i = 0; size && i < 8; i++) {
+		int ram_tlb_index = find_free_tlbcam();
+		u32 camsize = __ilog2_u64(size) & ~1U;
+		u32 align = __ilog2(ram_tlb_address) & ~1U;
+
+		if (ram_tlb_index == -1)
+			break;
+
+		if (align == -2)
+			align = max_cam;
+		if (camsize > align)
+			camsize = align;
+
+		if (camsize > max_cam)
+			camsize = max_cam;
+
+		tlb_size = (camsize - 10) / 2;
+
+		set_tlb(1, ram_tlb_address, p_addr,
+			MAS3_SX|MAS3_SW|MAS3_SR, wimge,
+			0, ram_tlb_index, tlb_size, 1);
+
+		size -= 1ULL << camsize;
+		memsize -= 1ULL << camsize;
+		ram_tlb_address += 1UL << camsize;
+		p_addr += 1UL << camsize;
+	}
+
+	if (memsize)
+		printf("%lld left unmapped\n", memsize);
+	return memsize_in_meg;
+}
+
+unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
+{
+	return setup_ddr_tlbs_phys(CFG_SDRAM_BASE, memsize_in_meg);
+}
diff --git a/arch/ppc/cpu-85xx/traps.c b/arch/ppc/cpu-85xx/traps.c
new file mode 100644
index 0000000..dcbaadf
--- /dev/null
+++ b/arch/ppc/cpu-85xx/traps.c
@@ -0,0 +1,300 @@
+/*
+ * linux/arch/powerpc/kernel/traps.c
+ *
+ * Copyright 2007 Freescale Semiconductor.
+ * Copyright (C) 2003 Motorola
+ * Modified by Xianghua Xiao(x.xiao@motorola.com)
+ *
+ * Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
+ *
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <common.h>
+#include <command.h>
+#include <init.h>
+#include <kgdb.h>
+#include <asm/processor.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/global_data.h>
+#include <mach/immap_85xx.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+int machinecheck_count;
+int machinecheck_error;
+
+/*
+ * End of addressable memory.
+ */
+#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize())
+
+static inline void set_tsr(unsigned long val)
+{
+	asm volatile("mtspr 0x150, %0" : : "r" (val));
+}
+
+static inline unsigned long get_esr(void)
+{
+	unsigned long val;
+	asm volatile("mfspr %0, 0x03e" : "=r" (val) : );
+	return val;
+}
+
+#define ESR_MCI 0x80000000
+#define ESR_PIL 0x08000000
+#define ESR_PPR 0x04000000
+#define ESR_PTR 0x02000000
+#define ESR_DST 0x00800000
+#define ESR_DIZ 0x00400000
+#define ESR_U0F 0x00008000
+
+/*
+ * Trap & Exception support
+ */
+void print_backtrace(unsigned long *sp)
+{
+	int cnt = 0;
+	unsigned long i;
+
+	printf("Call backtrace: ");
+	while (sp) {
+		if ((uint)sp > END_OF_MEM)
+			break;
+
+		i = sp[1];
+		if (cnt++ % 7 == 0)
+			printf("\n");
+		printf("%08lX ", i);
+		if (cnt > 32)
+			break;
+		sp = (unsigned long *)*sp;
+	}
+	printf("\n");
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	int i;
+
+	printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx "
+		"DAR: %08lX\n",
+	       regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+	printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x "
+		"IR/DR: %01x%01x\n",
+	       regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
+	       regs->msr & MSR_FP ? 1 : 0, regs->msr&MSR_ME ? 1 : 0,
+	       regs->msr&MSR_IR ? 1 : 0,
+	       regs->msr&MSR_DR ? 1 : 0);
+
+	printf("\n");
+	for (i = 0;  i < 32;  i++) {
+		if ((i % 8) == 0)
+			printf("GPR%02d: ", i);
+
+		printf("%08lX ", regs->gpr[i]);
+		if ((i % 8) == 7)
+			printf("\n");
+	}
+}
+
+void _exception(int signr, struct pt_regs *regs)
+{
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Exception in kernel pc %lx signal %d", regs->nip, signr);
+}
+
+void CritcalInputException(struct pt_regs *regs)
+{
+	panic("Critical Input Exception");
+}
+
+static int exception_init(void)
+{
+	machinecheck_count = 0;
+	machinecheck_error = 0;
+
+	return 0;
+}
+core_initcall(exception_init);
+
+void MachineCheckException(struct pt_regs *regs)
+{
+	unsigned long fixup;
+	unsigned int mcsr, mcsrr0, mcsrr1, mcar;
+
+	/*
+	 * Probing PCI using config cycles cause this exception
+	 * when a device is not present.  Catch it and return to
+	 * the PCI exception handler.
+	 */
+	fixup = search_exception_table(regs->nip);
+	if (fixup != 0) {
+		regs->nip = fixup;
+		return;
+	}
+
+	mcsrr0 = mfspr(SPRN_MCSRR0);
+	mcsrr1 = mfspr(SPRN_MCSRR1);
+	mcsr = mfspr(SPRN_MCSR);
+	mcar = mfspr(SPRN_MCAR);
+
+	machinecheck_count++;
+	machinecheck_error = 1;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	printf("Machine check in kernel mode.\n");
+	printf("Caused by (from mcsr): ");
+	printf("mcsr = 0x%08x\n", mcsr);
+	if (mcsr & 0x80000000)
+		printf("Machine check input pin\n");
+	if (mcsr & 0x40000000)
+		printf("Instruction cache parity error\n");
+	if (mcsr & 0x20000000)
+		printf("Data cache push parity error\n");
+	if (mcsr & 0x10000000)
+		printf("Data cache parity error\n");
+	if (mcsr & 0x00000080)
+		printf("Bus instruction address error\n");
+	if (mcsr & 0x00000040)
+		printf("Bus Read address error\n");
+	if (mcsr & 0x00000020)
+		printf("Bus Write address error\n");
+	if (mcsr & 0x00000010)
+		printf("Bus Instruction data bus error\n");
+	if (mcsr & 0x00000008)
+		printf("Bus Read data bus error\n");
+	if (mcsr & 0x00000004)
+		printf("Bus Write bus error\n");
+	if (mcsr & 0x00000002)
+		printf("Bus Instruction parity error\n");
+	if (mcsr & 0x00000001)
+		printf("Bus Read parity error\n");
+
+	show_regs(regs);
+	printf("MCSR=0x%08x\tMCSRR0=0x%08x\nMCSRR1=0x%08x\tMCAR=0x%08x\n",
+		mcsr, mcsrr0, mcsrr1, mcar);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	if (machinecheck_count > 10)
+		panic("machine check count too high\n");
+
+	if (machinecheck_count > 1) {
+		regs->nip += 4; /* skip offending instruction */
+		printf("Skipping current instr, Returning to 0x%08lx\n",
+		       regs->nip);
+	} else {
+		printf("Returning back to 0x%08lx\n", regs->nip);
+	}
+}
+
+void AlignmentException(struct pt_regs *regs)
+{
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Alignment Exception");
+}
+
+void ProgramCheckException(struct pt_regs *regs)
+{
+	long esr_val;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	show_regs(regs);
+
+	esr_val = get_esr();
+	if (esr_val & ESR_PIL)
+		printf("** Illegal Instruction **\n");
+	else if (esr_val & ESR_PPR)
+		printf("** Privileged Instruction **\n");
+	else if (esr_val & ESR_PTR)
+		printf("** Trap Instruction **\n");
+
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Program Check Exception");
+}
+
+void PITException(struct pt_regs *regs)
+{
+	/* Reset PIT interrupt */
+	set_tsr(0x0c000000);
+
+}
+
+void UnknownException(struct pt_regs *regs)
+{
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+	       regs->nip, regs->msr, regs->trap);
+	_exception(0, regs);
+}
+
+void ExtIntException(struct pt_regs *regs)
+{
+	void __iomem *pic = (void __iomem *)(MPC8xxx_PIC_ADDR);
+
+	uint vect;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	printf("External Interrupt Exception at PC: %lx, SR: %lx, vector=%lx",
+	       regs->nip, regs->msr, regs->trap);
+	vect = in_be32(pic + MPC85xx_PIC_IACK0_OFFSET);
+	printf(" irq IACK0@%05x=%d\n", (int)(pic + MPC85xx_PIC_IACK0_OFFSET),
+		vect);
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+}
+
+void DebugException(struct pt_regs *regs)
+{
+	printf("Debugger trap at @ %lx\n", regs->nip);
+	show_regs(regs);
+#if defined(CONFIG_BEDBUG)
+	do_bedbug_breakpoint(regs);
+#endif
+}
diff --git a/arch/ppc/include/asm/bitops.h b/arch/ppc/include/asm/bitops.h
index 8048232..3b31d54 100644
--- a/arch/ppc/include/asm/bitops.h
+++ b/arch/ppc/include/asm/bitops.h
@@ -166,6 +166,48 @@ extern __inline__ int ffz(unsigned int x)
 	return __ilog2(x & -x);
 }
 
+/*
+ * fls: find last (most-significant) bit set.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(unsigned int x)
+{
+	int lz;
+
+	asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
+	return 32 - lz;
+}
+
+/*
+ * fls64 - find last set bit in a 64-bit word
+ * @x: the word to search
+ *
+ * This is defined in a similar way as the libc and compiler builtin
+ * ffsll, but returns the position of the most significant set bit.
+ *
+ * fls64(value) returns 0 if value is 0 or the position of the last
+ * set bit if value is nonzero. The last (most significant) bit is
+ * at position 64.
+ */
+
+static inline int fls64(__u64 x)
+{
+	__u32 h = x >> 32;
+	if (h)
+		return fls(h) + 32;
+	return fls(x);
+}
+
+static inline int __ilog2_u64(u64 n)
+{
+	return fls64(n) - 1;
+}
+
+static inline int ffs64(u64 x)
+{
+	return __ilog2_u64(x & -x) + 1ull;
+}
+
 #ifdef __KERNEL__
 
 /*
diff --git a/arch/ppc/include/asm/cache.h b/arch/ppc/include/asm/cache.h
index 4f7ca86..147ceb6 100644
--- a/arch/ppc/include/asm/cache.h
+++ b/arch/ppc/include/asm/cache.h
@@ -31,6 +31,8 @@
 extern void flush_dcache_range(unsigned long start, unsigned long stop);
 extern void clean_dcache_range(unsigned long start, unsigned long stop);
 extern void invalidate_dcache_range(unsigned long start, unsigned long stop);
+extern void flush_dcache(void);
+extern void invalidate_icache(void);
 #ifdef CFG_INIT_RAM_LOCK
 extern void unlock_ram_in_cache(void);
 #endif /* CFG_INIT_RAM_LOCK */
diff --git a/arch/ppc/include/asm/common.h b/arch/ppc/include/asm/common.h
index 732fbaf..e3636d9 100644
--- a/arch/ppc/include/asm/common.h
+++ b/arch/ppc/include/asm/common.h
@@ -34,5 +34,6 @@ static inline unsigned long get_pc(void)
 	return pc;
 }
 
+int l2_cache_init(void);
 extern unsigned long search_exception_table(unsigned long);
 #endif /* __ASM_COMMON_H */
diff --git a/arch/ppc/include/asm/config.h b/arch/ppc/include/asm/config.h
new file mode 100644
index 0000000..9c4458b
--- /dev/null
+++ b/arch/ppc/include/asm/config.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_CONFIG_H_
+#define _ASM_CONFIG_H_
+
+#ifdef CONFIG_MPC85xx
+#include <asm/config_mpc85xx.h>
+#endif
+
+#ifndef MAX_MEM_MAPPED
+#if defined(CONFIG_E500)
+#define MAX_MEM_MAPPED	((phys_size_t)(2 << 30))
+#endif
+#endif
+
+/*
+ * Provide a default boot page translation virtual address that lines up with
+ * Freescale's default e500 reset page.
+ */
+#if (defined(CONFIG_E500) && defined(CONFIG_MP))
+#ifndef BPTR_VIRT_ADDR
+#define BPTR_VIRT_ADDR	0xfffff000
+#endif
+#endif
+
+#endif /* _ASM_CONFIG_H_ */
diff --git a/arch/ppc/include/asm/config_mpc85xx.h b/arch/ppc/include/asm/config_mpc85xx.h
new file mode 100644
index 0000000..5da4f2f
--- /dev/null
+++ b/arch/ppc/include/asm/config_mpc85xx.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_MPC85xx_CONFIG_H_
+#define _ASM_MPC85xx_CONFIG_H_
+
+/* Number of TLB CAM entries we have on FSL Book-E chips */
+#if defined(CONFIG_E500)
+#define NUM_TLBCAMS	16
+#endif
+
+#if defined(CONFIG_P2020)
+#define MAX_CPUS	2
+#define FSL_NUM_LAWS	12
+#define FSL_SEC_COMPAT	2
+#else
+#error Processor type not defined for this platform
+#endif
+
+#endif /* _ASM_MPC85xx_CONFIG_H_ */
diff --git a/arch/ppc/include/asm/e500.h b/arch/ppc/include/asm/e500.h
new file mode 100644
index 0000000..36aa5a8
--- /dev/null
+++ b/arch/ppc/include/asm/e500.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2003 Motorola,Inc.
+ * Xianghua Xiao(x.xiao@motorola.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__E500_H__
+#define __E500_H__
+
+#ifndef __ASSEMBLY__
+#include <asm/config_mpc85xx.h>
+
+struct sys_info {
+	unsigned long freqProcessor[MAX_CPUS];
+	unsigned long freqSystemBus;
+	unsigned long freqDDRBus;
+	unsigned long freqLocalBus;
+};
+
+#endif  /* _ASMLANGUAGE */
+
+#define RESET_VECTOR	0xfffffffc
+
+#endif	/* __E500_H__ */
diff --git a/arch/ppc/include/asm/fsl_ddr_sdram.h b/arch/ppc/include/asm/fsl_ddr_sdram.h
new file mode 100644
index 0000000..5de2d72
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_ddr_sdram.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef FSL_DDR_MEMCTL_H
+#define FSL_DDR_MEMCTL_H
+
+/*
+ * DDR_SDRAM_CFG - DDR SDRAM Control Configuration
+ */
+#define SDRAM_CFG_MEM_EN		0x80000000
+#define SDRAM_CFG_SREN			0x40000000
+#define SDRAM_CFG_ECC_EN		0x20000000
+#define SDRAM_CFG_RD_EN			0x10000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR1	0x02000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR2	0x03000000
+#define SDRAM_CFG_SDRAM_TYPE_MASK	0x07000000
+#define SDRAM_CFG_SDRAM_TYPE_SHIFT	24
+#define SDRAM_CFG_DYN_PWR		0x00200000
+#define SDRAM_CFG_32_BE			0x00080000
+#define SDRAM_CFG_8_BE			0x00040000
+#define SDRAM_CFG_NCAP			0x00020000
+#define SDRAM_CFG_2T_EN			0x00008000
+#define SDRAM_CFG_BI			0x00000001
+
+extern phys_size_t get_effective_memsize(void);
+extern phys_size_t fixed_sdram(void);
+
+#endif
diff --git a/arch/ppc/include/asm/fsl_i2c.h b/arch/ppc/include/asm/fsl_i2c.h
index 4f71341..b219d0b 100644
--- a/arch/ppc/include/asm/fsl_i2c.h
+++ b/arch/ppc/include/asm/fsl_i2c.h
@@ -36,13 +36,13 @@ typedef struct fsl_i2c {
 
 	u8 adr;		/* I2C slave address */
 	u8 res0[3];
-#define I2C_ADR		0xFE
+#define I2C_ADR		0xfe
 #define I2C_ADR_SHIFT	1
 #define I2C_ADR_RES	~(I2C_ADR)
 
 	u8 fdr;		/* I2C frequency divider register */
 	u8 res1[3];
-#define IC2_FDR		0x3F
+#define IC2_FDR		0x3f
 #define IC2_FDR_SHIFT	0
 #define IC2_FDR_RES	~(IC2_FDR)
 
@@ -69,18 +69,18 @@ typedef struct fsl_i2c {
 
 	u8 dr;		/* I2C data register */
 	u8 res4[3];
-#define I2C_DR		0xFF
+#define I2C_DR		0xff
 #define I2C_DR_SHIFT	0
 #define I2C_DR_RES	~(I2C_DR)
 
 	u8 dfsrr;	/* I2C digital filter sampling rate register */
 	u8 res5[3];
-#define I2C_DFSRR	0x3F
+#define I2C_DFSRR	0x3f
 #define I2C_DFSRR_SHIFT	0
 #define I2C_DFSRR_RES	~(I2C_DR)
 
 	/* Fill out the reserved block */
-	u8 res6[0xE8];
+	u8 res6[0xe8];
 } fsl_i2c_t;
 
 #endif	/* _ASM_I2C_H_ */
diff --git a/arch/ppc/include/asm/fsl_law.h b/arch/ppc/include/asm/fsl_law.h
new file mode 100644
index 0000000..14f29e5
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_law.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _FSL_LAW_H_
+#define _FSL_LAW_H_
+
+#include <asm/io.h>
+
+#define LAW_EN	0x80000000
+
+#define SET_LAW_ENTRY(idx, a, sz, trgt) \
+	{ .index = idx, .addr = a, .size = sz, .trgt_id = trgt }
+
+#define SET_LAW(a, sz, trgt) \
+	{ .index = -1, .addr = a, .size = sz, .trgt_id = trgt }
+
+enum law_size {
+	LAW_SIZE_4K = 0xb,
+	LAW_SIZE_8K,
+	LAW_SIZE_16K,
+	LAW_SIZE_32K,
+	LAW_SIZE_64K,
+	LAW_SIZE_128K,
+	LAW_SIZE_256K,
+	LAW_SIZE_512K,
+	LAW_SIZE_1M,
+	LAW_SIZE_2M,
+	LAW_SIZE_4M,
+	LAW_SIZE_8M,
+	LAW_SIZE_16M,
+	LAW_SIZE_32M,
+	LAW_SIZE_64M,
+	LAW_SIZE_128M,
+	LAW_SIZE_256M,
+	LAW_SIZE_512M,
+	LAW_SIZE_1G,
+	LAW_SIZE_2G,
+	LAW_SIZE_4G,
+	LAW_SIZE_8G,
+	LAW_SIZE_16G,
+	LAW_SIZE_32G,
+};
+
+#define law_size_bits(sz)	(__ilog2_u64(sz) - 1)
+#define lawar_size(x)	(1ULL << (((x) & 0x3f) + 1))
+
+enum law_trgt_if {
+	LAW_TRGT_IF_PCI = 0x00,
+	LAW_TRGT_IF_PCI_2 = 0x01,
+	LAW_TRGT_IF_PCIE_1 = 0x02,
+#if !defined(CONFIG_P2020)
+	LAW_TRGT_IF_PCIE_3 = 0x03,
+#endif
+	LAW_TRGT_IF_LBC = 0x04,
+	LAW_TRGT_IF_CCSR = 0x08,
+	LAW_TRGT_IF_DDR_INTRLV = 0x0b,
+	LAW_TRGT_IF_RIO = 0x0c,
+	LAW_TRGT_IF_RIO_2 = 0x0d,
+	LAW_TRGT_IF_DDR = 0x0f,
+	LAW_TRGT_IF_DDR_2 = 0x16,	/* 2nd controller */
+};
+#define LAW_TRGT_IF_DDR_1	LAW_TRGT_IF_DDR
+#define LAW_TRGT_IF_PCI_1	LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIX	LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIE_2	LAW_TRGT_IF_PCI_2
+#define LAW_TRGT_IF_RIO_1	LAW_TRGT_IF_RIO
+
+
+#if defined(CONFIG_P2020)
+#define LAW_TRGT_IF_PCIE_3	LAW_TRGT_IF_PCI
+#endif
+
+struct law_entry {
+	int index;
+	phys_addr_t addr;
+	enum law_size size;
+	enum law_trgt_if trgt_id;
+};
+
+extern int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id);
+extern void init_laws(void);
+
+/* define in board code */
+extern struct law_entry law_table[];
+extern int num_law_entries;
+#endif
diff --git a/arch/ppc/include/asm/fsl_lbc.h b/arch/ppc/include/asm/fsl_lbc.h
new file mode 100644
index 0000000..8c6b08a
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_lbc.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright (C) 2004-2008,2010-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef __ASM_PPC_FSL_LBC_H
+#define __ASM_PPC_FSL_LBC_H
+
+#include <config.h>
+#include <common.h>
+
+/*
+ * BR - Base Registers
+ */
+#define BR_PS				0x00001800
+#define BR_PS_SHIFT			11
+#define BR_PS_8				0x00000800	/* Port Size 8 bit */
+#define BR_PS_16			0x00001000	/* Port Size 16 bit */
+#define BR_PS_32			0x00001800	/* Port Size 32 bit */
+#define BR_V				0x00000001
+#define BR_V_SHIFT			0
+
+/* Convert an address into the right format for the BR registers */
+#define BR_PHYS_ADDR(x) ((x) & 0xffff8000)
+
+/* helpers to convert values into an OR address mask (GPCM mode) */
+#if 0
+#define P2SZ_TO_AM(s)	((~((s) - 1)) & 0xffff8000)	/* must be pow of 2 */
+#define MEG_TO_AM(m)	P2SZ_TO_AM((m) << 20)
+#endif
+
+/*
+ * CLKDIV is five bits only on 8536, 8572, and 8610, so far, but the fifth bit
+ * should always be zero on older parts that have a four bit CLKDIV.
+ */
+#define LCRR_CLKDIV			0x0000001f
+#define LCRR_CLKDIV_SHIFT		0
+#define LCRR_CLKDIV_4			0x00000002
+#define LCRR_CLKDIV_8			0x00000004
+#define LCRR_CLKDIV_16			0x00000008
+
+#ifndef __ASSEMBLY__
+#include <asm/io.h>
+
+extern void init_early_memctl_regs(void);
+
+/* LBC register offsets. */
+#define FSL_LBC_BRX(x)	((x) * 8)	/* bank register offsets.  */
+#define FSL_LBC_ORX(x)	(4 + ((x) * 8)) /* option register offset. */
+#define FSL_LBC_LCCR	0x0d4		/* Clock ration register. */
+
+#define LBC_BASE_ADDR ((void __iomem *)LBC_ADDR)
+#define get_lbc_br(x) (in_be32((LBC_BASE_ADDR + FSL_LBC_BRX(x))))
+#define get_lbc_or(x) (in_be32((LBC_BASE_ADDR + FSL_LBC_ORX(x))))
+#define set_lbc_br(x, v) (out_be32((LBC_BASE_ADDR + FSL_LBC_BRX(x)), v))
+#define set_lbc_or(x, v) (out_be32((LBC_BASE_ADDR + FSL_LBC_ORX(x)), v))
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_PPC_FSL_LBC_H */
diff --git a/arch/ppc/include/asm/global_data.h b/arch/ppc/include/asm/global_data.h
new file mode 100644
index 0000000..ea33c84
--- /dev/null
+++ b/arch/ppc/include/asm/global_data.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * (C) Copyright 2002-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+
+#include "config.h"
+#include "asm/types.h"
+
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (some locked parts of the data cache)
+ * to allow for a minimum set of global variables during system initialization
+ * (until we have set * up the memory controller so that we can use RAM).
+ */
+
+struct	global_data {
+	bd_t		*bd;
+	unsigned long	flags;
+	unsigned long	baudrate;
+	unsigned long	cpu_clk;	/* CPU clock in Hz! */
+	unsigned long	bus_clk;
+	unsigned long	mem_clk;
+	u32 lbc_clk;
+	void *cpu;
+	u32 i2c1_clk;
+	u32 i2c2_clk;
+	u32 used_laws;
+	u32 used_tlb_cams[(NUM_TLBCAMS+31)/32];
+	phys_size_t	ram_size;
+	unsigned long	board_type;
+};
+
+#define DECLARE_GLOBAL_DATA_PTR		register struct global_data \
+					*gd asm ("r2")
+#endif /* __ASM_GBL_DATA_H */
diff --git a/arch/ppc/include/asm/io.h b/arch/ppc/include/asm/io.h
index 052ae15..13187ca 100644
--- a/arch/ppc/include/asm/io.h
+++ b/arch/ppc/include/asm/io.h
@@ -176,6 +176,26 @@ extern inline void out_be32(volatile unsigned *addr, int val)
     __asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
 }
 
+/*
+ * Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single call. These macros can
+ * also be used to set a multiple-bit bit pattern using a mask, by
+ * specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+#define clrbits(type, addr, clear) \
+	out_##type((addr), in_##type(addr) & ~(clear))
+
+#define setbits(type, addr, set) \
+	out_##type((addr), in_##type(addr) | (set))
+
+#define clrsetbits(type, addr, clear, set) \
+	out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
+
+#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
+#define setbits_be32(addr, set) setbits(be32, addr, set)
+#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
+
 /* these ones were originally in config.h */
 unsigned char	in8(unsigned int);
 void		out8(unsigned int, unsigned char);
diff --git a/arch/ppc/include/asm/mmu.h b/arch/ppc/include/asm/mmu.h
index 1667041..bba5ab5 100644
--- a/arch/ppc/include/asm/mmu.h
+++ b/arch/ppc/include/asm/mmu.h
@@ -372,15 +372,17 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
  * e500 support
  */
 
-#define MAS0_TLBSEL     0x10000000
-#define MAS0_ESEL       0x000F0000
-#define MAS0_NV         0x00000001
+#define MAS0_TLBSEL_MSK 0x30000000
+#define MAS0_TLBSEL(x)  (((x) << 28) & MAS0_TLBSEL_MSK)
+#define MAS0_ESEL_MSK   0x0FFF0000
+#define MAS0_ESEL(x)    (((x) << 16) & MAS0_ESEL_MSK)
+#define MAS0_NV(x)      ((x) & 0x00000FFF)
 
 #define MAS1_VALID      0x80000000
 #define MAS1_IPROT      0x40000000
-#define MAS1_TID        0x00FF0000
+#define MAS1_TID(x)     (((x) << 16) & 0x3FFF0000)
 #define MAS1_TS         0x00001000
-#define MAS1_TSIZE   	0x00000F00
+#define MAS1_TSIZE(x)   (((x) << 8) & 0x00000F00)
 
 #define MAS2_EPN        0xFFFFF000
 #define MAS2_SHAREN     0x00000200
@@ -404,10 +406,10 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define MAS3_UR         0x00000002
 #define MAS3_SR         0x00000001
 
-#define MAS4_TLBSELD    0x10000000
-#define MAS4_TIDDSEL    0x00030000
+#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
+#define MAS4_TIDDSEL    0x000F0000
+#define MAS4_TSIZED(x)  MAS1_TSIZE(x)
 #define MAS4_DSHAREN    0x00001000
-#define MAS4_TSIZED(x)  (x << 8)
 #define MAS4_X0D        0x00000040
 #define MAS4_X1D        0x00000020
 #define MAS4_WD         0x00000010
@@ -419,6 +421,23 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define MAS6_SPID       0x00FF0000
 #define MAS6_SAS        0x00000001
 
+#define MAS7_RPN	0xFFFFFFFF
+
+#define FSL_BOOKE_MAS0(tlbsel, esel, nv) \
+		(MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) | MAS0_NV(nv))
+#define FSL_BOOKE_MAS1(v, iprot, tid, ts, tsize) \
+		((((v) << 31) & MAS1_VALID)             |\
+		(((iprot) << 30) & MAS1_IPROT)          |\
+		(MAS1_TID(tid))				|\
+		(((ts) << 12) & MAS1_TS)                |\
+		(MAS1_TSIZE(tsize)))
+#define FSL_BOOKE_MAS2(epn, wimge) \
+		(((epn) & MAS3_RPN) | (wimge))
+#define FSL_BOOKE_MAS3(rpn, user, perms) \
+		(((rpn) & MAS3_RPN) | (user) | (perms))
+#define FSL_BOOKE_MAS7(rpn) \
+		(((u64)(rpn)) >> 32)
+
 #define BOOKE_PAGESZ_1K         0
 #define BOOKE_PAGESZ_4K         1
 #define BOOKE_PAGESZ_16K        2
@@ -436,6 +455,40 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define LAWBAR_BASE_ADDR	0x00FFFFFF
 #define LAWAR_TRGT_IF		0x01F00000
 #else
+#ifdef CONFIG_E500
+#ifndef __ASSEMBLY__
+extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
+		u8 perms, u8 wimge,
+		u8 ts, u8 esel, u8 tsize, u8 iprot);
+extern void disable_tlb(u8 esel);
+extern void invalidate_tlb(u8 tlb);
+extern void init_tlbs(void);
+extern int find_tlb_idx(void *addr, u8 tlbsel);
+extern void init_used_tlb_cams(void);
+
+extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
+extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7);
+
+#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz,\
+			_iprot) \
+	{ .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \
+	  .mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \
+	  .mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \
+	  .mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \
+	  .mas7 = FSL_BOOKE_MAS7(_rpn), }
+
+struct fsl_e_tlb_entry {
+	u32	mas0;
+	u32	mas1;
+	u32	mas2;
+	u32	mas3;
+	u32	mas7;
+};
+extern struct fsl_e_tlb_entry tlb_table[];
+extern int num_tlb_entries;
+#endif
+#endif
+
 #define LAWBAR_BASE_ADDR	0x000FFFFF
 #define LAWAR_TRGT_IF		0x00F00000
 #endif
diff --git a/arch/ppc/include/asm/processor.h b/arch/ppc/include/asm/processor.h
index 9c6f79a..29e0622 100644
--- a/arch/ppc/include/asm/processor.h
+++ b/arch/ppc/include/asm/processor.h
@@ -217,6 +217,7 @@
 #define   HID0_DPM	(1<<20)
 #define   HID0_ICE	(1<<HID0_ICE_SHIFT)	/* Instruction Cache Enable */
 #define   HID0_DCE	(1<<HID0_DCE_SHIFT)	/* Data Cache Enable */
+#define   HID0_TBEN	(1<<14)		/* Time Base Enable */
 #define   HID0_ILOCK	(1<<13)		/* Instruction Cache Lock */
 #define   HID0_DLOCK	(1<<HID0_DLOCK_SHIFT)	/* Data Cache Lock */
 #define   HID0_ICFI	(1<<11)		/* Instr. Cache Flash Invalidate */
@@ -231,6 +232,10 @@
 #define   HID0_BHTE	(1<<2)		/* Branch History Table Enable */
 #define   HID0_BTCD	(1<<1)		/* Branch target cache disable */
 #define SPRN_HID1	0x3F1	/* Hardware Implementation Register 1 */
+#define   HID1_RFXE     (1<<17)		/* Read Fault Exception Enable */
+#define   HID1_ASTME    (1<<13)		/* Address bus streaming mode */
+#define   HID1_ABE      (1<<12)		/* Address broadcast enable */
+#define   HID1_MBDD     (1<<6)		/* optimized sync instruction */
 #define SPRN_IABR	0x3F2	/* Instruction Address Breakpoint Register */
 #ifndef CONFIG_BOOKE
 #define SPRN_IAC1	0x3F4	/* Instruction Address Compare 1 */
@@ -410,13 +415,20 @@
 #define SPRN_IVOR15	0x19f	/* Interrupt Vector Offset Register 15 */
 
 /* e500 definitions */
+#define SPRN_L1CFG0     0x203   /* L1 Cache Configuration Register 0 */
 #define SPRN_L1CSR0     0x3f2   /* L1 Cache Control and Status Register 0 */
+#define   L1CSR0_CPE            0x00010000      /* Data Cache Parity Enable */
+#define   L1CSR0_DCLFR          0x00000100      /* D-Cache Lock Flash Reset */
 #define   L1CSR0_DCFI           0x00000002      /* Data Cache Flash Invalidate */
 #define   L1CSR0_DCE            0x00000001      /* Data Cache Enable */
 #define SPRN_L1CSR1     0x3f3   /* L1 Cache Control and Status Register 1 */
+#define   L1CSR1_CPE           0x00010000       /* I-Cache Parity Enable */
+#define   L1CSR1_ICLFR          0x00000100      /* I-Cache Lock Flash Reset */
 #define   L1CSR1_ICFI           0x00000002      /* Instruction Cache Flash Invalidate */
 #define   L1CSR1_ICE            0x00000001      /* Instruction Cache Enable */
 
+#define SPRN_TLB0CFG   0x2B0   /* TLB 0 Config Register */
+#define SPRN_TLB1CFG   0x2B1   /* TLB 1 Config Register */
 #define SPRN_MMUCSR0	0x3f4	/* MMU control and status register 0 */
 #define SPRN_MAS0       0x270   /* MMU Assist Register 0 */
 #define SPRN_MAS1       0x271   /* MMU Assist Register 1 */
@@ -436,11 +448,17 @@
 #define SPRN_MCSRR0     0x23a   /* Machine Check Save and Restore Register 0 */
 #define SPRN_MCSRR1     0x23b   /* Machine Check Save and Restore Register 1 */
 #define SPRN_BUCSR	0x3f5	/* Branch Control and Status Register */
+#define   BUCSR_STAC_EN 0x01000000      /* Segment target addr cache enable */
+#define   BUCSR_LS_EN   0x00400000      /* Link stack enable */
+#define   BUCSR_BBFI    0x00000200      /* Branch buffer flash invalidate */
+#define   BUCSR_BPEN    0x00000001      /* Branch prediction enable */
+#define   BUCSR_ENABLE (BUCSR_STAC_EN|BUCSR_LS_EN|BUCSR_BBFI|BUCSR_BPEN)
 #define SPRN_BBEAR      0x201   /* Branch Buffer Entry Address Register */
 #define SPRN_BBTAR      0x202   /* Branch Buffer Target Address Register */
 #define SPRN_PID1       0x279   /* Process ID Register 1 */
 #define SPRN_PID2       0x27a   /* Process ID Register 2 */
 #define SPRN_MCSR	0x23c	/* Machine Check Syndrome register */
+#define SPRN_MCAR	0x23d	/* Machine Check Address register */
 #define ESR_ST          0x00800000      /* Store Operation */
 
 #if defined(CONFIG_MPC86xx)
@@ -586,6 +604,7 @@
 #define MCSRR1	SPRN_MCSRR1
 #define L1CSR0 	SPRN_L1CSR0
 #define L1CSR1	SPRN_L1CSR1
+#define L1CFG0 SPRN_L1CFG0
 #define MCSR	SPRN_MCSR
 #define MMUCSR0	SPRN_MMUCSR0
 #define BUCSR	SPRN_BUCSR
@@ -600,7 +619,13 @@
 #define MAS5	SPRN_MAS5
 #define MAS6	SPRN_MAS6
 #define MAS7	SPRN_MAS7
+#define MAS8	SPRN_MAS8
 
+#if defined(CONFIG_MPC85xx)
+#define DAR_DEAR DEAR
+#else
+#define DAR_DEAR DAR
+#endif
 /* Device Control Registers */
 
 #define DCRN_BEAR	0x090	/* Bus Error Address Register */
@@ -818,6 +843,8 @@
 #define SVR_MAJ(svr)	(((svr) >>  4) & 0xF)	/* Major revision field*/
 #define SVR_MIN(svr)	(((svr) >>  0) & 0xF)	/* Minor revision field*/
 
+/* Some parts define SVR[0:23] as the SOC version */
+#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFFFFF)	/* SOC Version fields */
 
 /*
  * SVR_VER() Version Values
@@ -830,6 +857,10 @@
 #define SVR_8548	0x8031
 #define SVR_8548_E	0x8039
 #define SVR_8641	0x8090
+#define SVR_P2020	0x80E200
+#define SVR_P2020_E	0x80EA00
+
+#define SVR_Unknown	0xFFFFFF
 
 
 /* I am just adding a single entry for 8260 boards.  I think we may be
@@ -924,6 +955,19 @@ n:
 #define SR15	15
 
 #ifndef __ASSEMBLY__
+
+struct cpu_type {
+	char name[15];
+	u32 soc_ver;
+	u32 num_cores;
+};
+
+struct cpu_type *identify_cpu(u32 ver);
+
+#if defined(CONFIG_MPC85xx)
+#define CPU_TYPE_ENTRY(n, v, nc) \
+	{ .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), }
+#endif
 #ifndef CONFIG_MACH_SPECIFIC
 extern int _machine;
 extern int have_of;
diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile
index 2af000a..549f1e2 100644
--- a/arch/ppc/lib/Makefile
+++ b/arch/ppc/lib/Makefile
@@ -5,9 +5,11 @@ obj-y += kgdb.o
 obj-y += ppcstring.o
 obj-y += ticks.o
 obj-$(CONFIG_MPC5200) += time-mpc5200.o
+obj-$(CONFIG_ARCH_MPC85XX) += time-mpc85xx.o
 obj-y += misc.o
 obj-$(CONFIG_CMD_BOOTM) += ppclinux.o
 obj-y += board_data.o
 obj-$(CONFIG_MODULES) += module.o
 obj-y += crtsavres.o
+obj-y += reloc.o
 
diff --git a/arch/ppc/lib/board.c b/arch/ppc/lib/board.c
index a840c75..2982237 100644
--- a/arch/ppc/lib/board.c
+++ b/arch/ppc/lib/board.c
@@ -30,22 +30,23 @@
 #include <net.h>
 #include <asm-generic/memory_layout.h>
 
-/************************************************************************
- *
+/*
  * This is the next part if the initialization sequence: we are now
  * running from RAM and have a "normal" C environment, i. e. global
  * data can be written, BSS has been cleared, the stack size in not
  * that critical any more, etc.
- *
- ************************************************************************
  */
 
-void board_init_r (ulong end_of_ram)
+void board_init_r(ulong dest_addr)
 {
 	unsigned long malloc_end;
 
 	asm ("sync ; isync");
 
+#ifdef CONFIG_MPC85xx
+	_text_base = dest_addr;
+#endif
+
 	/*
 	 * FIXME: 128k stack size. Is this enough? should
 	 *        it be configurable?
diff --git a/arch/ppc/lib/reloc.S b/arch/ppc/lib/reloc.S
new file mode 100644
index 0000000..92ee189
--- /dev/null
+++ b/arch/ppc/lib/reloc.S
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/ppc_asm.tmpl>
+
+	.file	"reloc.S"
+
+	.text
+	/*
+	 * Function: relocate entries for one exception vector
+	 */
+	.globl trap_reloc
+	.type	trap_reloc, @function
+trap_reloc:
+	lwz	r0, 0(r7)		/* hdlr ...		*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 0(r7)
+
+	lwz	r0, 4(r7)		/* int_return ...	*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 4(r7)
+
+	lwz	r0, 8(r7)		/* transfer_to_handler ...*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 8(r7)
+
+	blr
+	.size	trap_reloc, .-trap_reloc
diff --git a/arch/ppc/lib/time-mpc85xx.c b/arch/ppc/lib/time-mpc85xx.c
new file mode 100644
index 0000000..4e36bad
--- /dev/null
+++ b/arch/ppc/lib/time-mpc85xx.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <clock.h>
+#include <init.h>
+#include <mach/clocks.h>
+#include <asm/common.h>
+
+uint64_t ppc_clocksource_read(void)
+{
+	return get_ticks();
+}
+
+static struct clocksource cs = {
+	.read	= ppc_clocksource_read,
+	.mask	= CLOCKSOURCE_MASK(64),
+};
+
+static int clocksource_init(void)
+{
+	/* reset time base */
+	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
+
+	clocks_calc_mult_shift(&cs.mult, &cs.shift, get_timebase_clock(),
+			       NSEC_PER_SEC, 10);
+
+	init_clock(&cs);
+
+	return 0;
+}
+
+core_initcall(clocksource_init);
diff --git a/arch/ppc/mach-mpc85xx/Kconfig b/arch/ppc/mach-mpc85xx/Kconfig
new file mode 100644
index 0000000..4758951
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/Kconfig
@@ -0,0 +1,45 @@
+if ARCH_MPC85XX
+
+config TEXT_BASE
+	hex
+	default 0xeff80000 if P2020RDB
+
+config BOARDINFO
+	default "P2020_RDB" if P2020RDB
+
+config MPC85xx
+	bool
+	default y if P2020RDB
+
+choice
+	prompt "Select your board"
+
+config P2020RDB
+	bool "P2020RDB"
+	help
+	Say Y here if you are using the Freescale P2020RDB
+
+endchoice
+endif
+
+if P2020RDB
+config P2020
+	bool
+	default y
+
+config BOOKE
+	bool
+	default y
+
+config E500
+	bool
+	default y
+
+config MP
+	bool
+	default y if P2020
+
+config FSL_ELBC
+	bool
+	default y
+endif
diff --git a/arch/ppc/mach-mpc85xx/Makefile b/arch/ppc/mach-mpc85xx/Makefile
new file mode 100644
index 0000000..36f87c0
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/Makefile
@@ -0,0 +1,5 @@
+obj-y 			+= cpuid.o
+obj-y			+= fsl_lbc.o
+obj-y			+= fsl_law.o
+obj-y			+= speed.o
+obj-$(CONFIG_MP)	+= mp.o
diff --git a/arch/ppc/mach-mpc85xx/cpuid.c b/arch/ppc/mach-mpc85xx/cpuid.c
new file mode 100644
index 0000000..52d63ca
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/cpuid.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
+ * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
+ * cpu specific common code for 85xx/86xx processors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+#include <asm/global_data.h>
+#include <mach/immap_85xx.h>
+
+struct cpu_type cpu_type_list[] = {
+	CPU_TYPE_ENTRY(P2020, P2020, 2),
+	CPU_TYPE_ENTRY(P2020, P2020_E, 2),
+};
+
+struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 1);
+
+struct cpu_type *identify_cpu(u32 ver)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
+		if (cpu_type_list[i].soc_ver == ver)
+			return &cpu_type_list[i];
+	}
+	return &cpu_type_unknown;
+}
+
+int cpu_numcores(void)
+{
+	void __iomem *pic = (void __iomem *)MPC8xxx_PIC_ADDR;
+	struct cpu_type *cpu;
+	uint svr;
+	uint ver;
+
+	svr = get_svr();
+	ver = SVR_SOC_VER(svr);
+	cpu = identify_cpu(ver);
+
+	/* better to query feature reporting register than just assume 1 */
+	if (cpu == &cpu_type_unknown)
+		return ((in_be32(pic + MPC85xx_PIC_FRR_OFFSET) &
+			MPC8xxx_PICFRR_NCPU_MASK) >> MPC8xxx_PICFRR_NCPU_SHIFT)
+			+ 1;
+
+	return cpu->num_cores;
+}
diff --git a/arch/ppc/mach-mpc85xx/fsl_law.c b/arch/ppc/mach-mpc85xx/fsl_law.c
new file mode 100644
index 0000000..57999f4
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/fsl_law.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/global_data.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FSL_HW_NUM_LAWS FSL_NUM_LAWS
+
+#define LAW_BASE (CFG_IMMR + 0xC08)
+#define LAWAR_ADDR(x) ((u32 *)LAW_BASE + 8 * (x) + 2)
+#define LAWBAR_ADDR(x) ((u32 *)LAW_BASE + 8 * (x))
+#define LAWBAR_SHIFT 12
+
+static inline phys_addr_t get_law_base_addr(int idx)
+{
+	return (phys_addr_t)in_be32(LAWBAR_ADDR(idx)) << LAWBAR_SHIFT;
+}
+
+static inline void set_law_base_addr(int idx, phys_addr_t addr)
+{
+	out_be32(LAWBAR_ADDR(idx), addr >> LAWBAR_SHIFT);
+}
+
+static void set_law(u8 idx, phys_addr_t addr, enum law_size sz,
+		    enum law_trgt_if id)
+{
+	gd->used_laws |= (1 << idx);
+
+	out_be32(LAWAR_ADDR(idx), 0);
+	set_law_base_addr(idx, addr);
+	out_be32(LAWAR_ADDR(idx), LAW_EN | ((u32)id << 20) | (u32)sz);
+
+	/* Read back so that we sync the writes */
+	in_be32(LAWAR_ADDR(idx));
+}
+
+static int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+	u32 idx = ffz(gd->used_laws);
+
+	if (idx >= FSL_HW_NUM_LAWS)
+		return -1;
+
+	set_law(idx, addr, sz, id);
+
+	return idx;
+}
+
+static int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+	u32 idx;
+
+	/* we have no LAWs free */
+	if (gd->used_laws == -1)
+		return -1;
+
+	/* grab the last free law */
+	idx = __ilog2(~(gd->used_laws));
+
+	if (idx >= FSL_HW_NUM_LAWS)
+		return -1;
+
+	set_law(idx, addr, sz, id);
+
+	return idx;
+}
+
+/* use up to 2 LAWs for DDR, used the last available LAWs */
+int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id)
+{
+	u64 start_align, law_sz;
+	int law_sz_enc;
+
+	if (start == 0)
+		start_align = 1ull << (LAW_SIZE_32G + 1);
+	else
+		start_align = 1ull << (ffs64(start) - 1);
+
+	law_sz = min(start_align, sz);
+	law_sz_enc = __ilog2_u64(law_sz) - 1;
+
+	if (set_last_law(start, law_sz_enc, id) < 0)
+		return -1;
+
+	/* recalculate size based on what was actually covered by the law */
+	law_sz = 1ull << __ilog2_u64(law_sz);
+
+	/* do we still have anything to map */
+	sz = sz - law_sz;
+	if (sz) {
+		start += law_sz;
+
+		start_align = 1ull << (ffs64(start) - 1);
+		law_sz = min(start_align, sz);
+		law_sz_enc = __ilog2_u64(law_sz) - 1;
+
+		if (set_last_law(start, law_sz_enc, id) < 0)
+			return -1;
+	} else {
+		return 0;
+	}
+
+	/* do we still have anything to map */
+	sz = sz - law_sz;
+	if (sz)
+		return 1;
+
+	return 0;
+}
+
+void init_laws(void)
+{
+	int i;
+
+	if (FSL_HW_NUM_LAWS < 32)
+		gd->used_laws = ~((1 << FSL_HW_NUM_LAWS) - 1);
+	else if (FSL_HW_NUM_LAWS == 32)
+		gd->used_laws = 0;
+	else
+		panic("FSL_HW_NUM_LAWS can not be > 32 w/o code changes");
+
+	for (i = 0; i < num_law_entries; i++) {
+		if (law_table[i].index == -1)
+			set_next_law(law_table[i].addr, law_table[i].size,
+					law_table[i].trgt_id);
+		else
+			set_law(law_table[i].index, law_table[i].addr,
+				law_table[i].size, law_table[i].trgt_id);
+	}
+}
diff --git a/arch/ppc/mach-mpc85xx/fsl_lbc.c b/arch/ppc/mach-mpc85xx/fsl_lbc.c
new file mode 100644
index 0000000..78a46e8
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/fsl_lbc.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <asm/fsl_lbc.h>
+#include <mach/immap_85xx.h>
+
+void init_early_memctl_regs(void)
+{
+	set_lbc_br(0, CFG_BR0_PRELIM);
+	set_lbc_or(0, CFG_OR0_PRELIM);
+}
diff --git a/arch/ppc/mach-mpc85xx/include/mach/clocks.h b/arch/ppc/mach-mpc85xx/include/mach/clocks.h
new file mode 100644
index 0000000..99c63be
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/clocks.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_ARCH_CLOCKS_H
+#define __ASM_ARCH_CLOCKS_H
+
+#include <mach/mpc85xx.h>
+
+#define NSEC_PER_SEC	1000000000L
+
+unsigned long get_bus_freq(ulong dummy);
+unsigned long get_timebase_clock(void);
+void get_sys_info(struct sys_info *sysInfo);
+#endif /* __ASM_ARCH_CLOCKS_H */
diff --git a/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h b/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
new file mode 100644
index 0000000..e0d8989
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+/* delay execution before timers are initialized */
+static inline void early_udelay(uint32_t usecs)
+{
+	/* loop takes 4 cycles. */
+	 uint32_t loops = usecs * (1000 / 4); /* CPU freq = 1Ghz */
+
+	while (loops)
+		loops--;
+}
diff --git a/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h b/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
new file mode 100644
index 0000000..b802249
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
@@ -0,0 +1,132 @@
+/*
+ * MPC85xx Internal Memory Map
+ *
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * Copyright(c) 2002,2003 Motorola Inc.
+ * Xianghua Xiao (x.xiao@motorola.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __IMMAP_85xx__
+#define __IMMAP_85xx__
+
+#include <asm/types.h>
+#include <asm/fsl_lbc.h>
+#include <asm/config.h>
+
+#define MPC85xx_LOCAL_OFFSET	0x0000
+#define MPC85xx_ECM_OFFSET	0x1000
+#define MPC85xx_DDR_OFFSET	0x2000
+#define MPC85xx_LBC_OFFSET	0x5000
+
+#define MPC85xx_GPIO_OFFSET	0xf000
+#define MPC85xx_L2_OFFSET	0x20000
+
+#define MPC85xx_PIC_OFFSET	0x40000
+#define MPC85xx_GUTS_OFFSET	0xe0000
+
+#define MPC85xx_LOCAL_ADDR	(CFG_IMMR + MPC85xx_LOCAL_OFFSET)
+#define MPC85xx_ECM_ADDR	(CFG_IMMR + MPC85xx_ECM_OFFSET)
+#define MPC85xx_GUTS_ADDR	(CFG_IMMR + MPC85xx_GUTS_OFFSET)
+#define MPC85xx_DDR_ADDR	(CFG_IMMR + MPC85xx_DDR_OFFSET)
+#define LBC_ADDR		(CFG_IMMR + MPC85xx_LBC_OFFSET)
+#define MPC85xx_GPIO_ADDR	(CFG_IMMR + MPC85xx_GPIO_OFFSET)
+#define MPC85xx_L2_ADDR		(CFG_IMMR + MPC85xx_L2_OFFSET)
+#define MPC8xxx_PIC_ADDR	(CFG_IMMR + MPC85xx_PIC_OFFSET)
+
+/* Local-Access Registers */
+#define MPC85xx_LOCAL_BPTR_OFFSET	0x20 /* Boot Page Translation */
+
+/* ECM Registers */
+#define MPC85xx_ECM_EEBPCR_OFFSET	0x00 /* ECM CCB Port Configuration */
+
+/*
+ * DDR Memory Controller Register Offsets
+ */
+/* Chip Select 0, 1,2, 3 Memory Bounds */
+#define MPC85xx_DDR_CS0_BNDS_OFFSET		0x000
+#define MPC85xx_DDR_CS1_BNDS_OFFSET		0x008
+#define MPC85xx_DDR_CS2_BNDS_OFFSET		0x010
+#define MPC85xx_DDR_CS3_BNDS_OFFSET		0x018
+/* Chip Select 0, 1, 2, 3 Configuration */
+#define MPC85xx_DDR_CS0_CONFIG_OFFSET		0x080
+#define MPC85xx_DDR_CS1_CONFIG_OFFSET		0x084
+#define MPC85xx_DDR_CS2_CONFIG_OFFSET		0x088
+#define MPC85xx_DDR_CS3_CONFIG_OFFSET		0x08c
+/* SDRAM Timing Configuration 0, 1, 2, 3 */
+#define MPC85xx_DDR_TIMING_CFG_3_OFFSET		0x100
+#define MPC85xx_DDR_TIMING_CFG_0_OFFSET		0x104
+#define MPC85xx_DDR_TIMING_CFG_1_OFFSET		0x108
+#define MPC85xx_DDR_TIMING_CFG_2_OFFSET		0x10c
+/* SDRAM Control Configuration */
+#define MPC85xx_DDR_SDRAM_CFG_OFFSET		0x110
+#define MPC85xx_DDR_SDRAM_CFG_2_OFFSET		0x114
+/* SDRAM Mode Configuration */
+#define MPC85xx_DDR_SDRAM_MODE_OFFSET		0x118
+#define MPC85xx_DDR_SDRAM_MODE_2_OFFSET		0x11c
+/* SDRAM Mode Control */
+#define MPC85xx_DDR_SDRAM_MD_CNTL_OFFSET	0x120
+/* SDRAM Interval Configuration */
+#define MPC85xx_DDR_SDRAM_INTERVAL_OFFSET	0x124
+/* SDRAM Data initialization */
+#define MPC85xx_DDR_SDRAM_DATA_INIT_OFFSET	0x128
+/* SDRAM Clock Control */
+#define MPC85xx_DDR_SDRAM_CLK_CNTL_OFFSET	0x130
+/* training init and extended addr */
+#define MPC85xx_DDR_SDRAM_INIT_ADDR_OFFSET	0x148
+#define MPC85xx_DDR_SDRAM_INIT_ADDR_EXT_OFFSET	0x14c
+
+#define DDR_OFF(REGNAME)	(MPC85xx_DDR_##REGNAME##_OFFSET)
+
+/*
+ * GPIO Register Offsets
+ */
+#define MPC85xx_GPIO_GPDIR	0x00
+#define MPC85xx_GPIO_GPDAT	0x08
+
+/*
+ * L2 Cache Register Offsets
+ */
+#define MPC85xx_L2_CTL_OFFSET	0x0		/* L2 configuration 0 */
+#define		MPC85xx_L2CTL_L2E	0x80000000
+
+/* PIC registers offsets */
+#define MPC85xx_PIC_WHOAMI_OFFSET	0x090
+#define MPC85xx_PIC_FRR_OFFSET		0x1000	/* Feature Reporting */
+/* PIC registers fields values and masks. */
+#define MPC8xxx_PICFRR_NCPU_MASK	0x00001f00
+#define MPC8xxx_PICFRR_NCPU_SHIFT	8
+#define MPC85xx_PICGCR_RST		0x80000000
+#define MPC85xx_PICGCR_M		0x20000000
+
+#define MPC85xx_PIC_IACK0_OFFSET	0x600a0	/* IRQ Acknowledge for
+						   Processor 0 */
+
+/* Global Utilities Register Offsets and field values */
+#define MPC85xx_GUTS_PORPLLSR_OFFSET	0x0
+#define		MPC85xx_PORPLLSR_DDR_RATIO		0x00003e00
+#define		MPC85xx_PORPLLSR_DDR_RATIO_SHIFT	9
+#define MPC85xx_GUTS_DEVDISR_OFFSET	0x70
+#define		MPC85xx_DEVDISR_TB0	0x00004000
+#define		MPC85xx_DEVDISR_TB1	0x00001000
+#define MPC85xx_GUTS_RSTCR_OFFSET	0xb0
+
+#endif /*__IMMAP_85xx__*/
diff --git a/arch/ppc/mach-mpc85xx/include/mach/mp.h b/arch/ppc/mach-mpc85xx/include/mach/mp.h
new file mode 100644
index 0000000..19b5c87
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/mp.h
@@ -0,0 +1,15 @@
+#ifndef __MPC85XX_MP_H_
+#define __MPC85XX_MP_H_
+
+void setup_mp(void);
+int cpu_numcores(void);
+
+extern ulong __secondary_start_page;
+extern ulong __spin_table;
+extern ulong __bootpg_addr;
+
+#define BOOT_ENTRY_ADDR_LOWER	1
+#define NUM_BOOT_ENTRY		8
+#define SIZE_BOOT_ENTRY		(NUM_BOOT_ENTRY * sizeof(u32))
+
+#endif
diff --git a/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h b/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
new file mode 100644
index 0000000..ba27c64
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2004, 2007 Freescale Semiconductor.
+ * Copyright(c) 2003 Motorola Inc.
+ */
+
+#ifndef	__MPC85xx_H__
+#define __MPC85xx_H__
+
+/* define for common ppc_asm.tmpl */
+#define EXC_OFF_SYS_RESET	0x100	/* System reset */
+#define _START_OFFSET		0
+
+#if defined(CONFIG_E500)
+#include <asm/e500.h>
+#endif
+
+#endif	/* __MPC85xx_H__ */
diff --git a/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl b/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
new file mode 100644
index 0000000..2dd3535
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
@@ -0,0 +1,208 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file contains all the macros and symbols which define
+ * a PowerPC assembly language environment.
+ */
+#ifndef	__PPC_ASM_TMPL__
+#define __PPC_ASM_TMPL__
+
+/*
+ * These definitions simplify the ugly declarations necessary for GOT
+ * definitions.
+ *
+ * Stolen from prepboot/bootldr.h, (C) 1998 Gabriel Paubert, paubert@iram.es
+ *
+ * Uses r12 to access the GOT
+ */
+
+#define START_GOT			\
+	.section	".got2","aw";	\
+.LCTOC1 = .+32768
+
+#define END_GOT				\
+	.text
+
+#define GET_GOT				\
+	bl	1f		;	\
+	.text	2		;	\
+0:	.long	.LCTOC1-1f	;	\
+	.text			;	\
+1:	mflr	r12		;	\
+	lwz	r0,0b-1b(r12)	;	\
+	add	r12,r0,r12	;
+
+#define GOT_ENTRY(NAME)		.L_ ## NAME = . - .LCTOC1 ; .long NAME
+
+#define GOT(NAME)		.L_ ## NAME (r12)
+
+/* Register names */
+#define	r0	0
+#define	r1	1
+#define	r2	2
+#define	r3	3
+#define	r4	4
+#define	r5	5
+#define	r6	6
+#define	r7	7
+#define	r8	8
+#define	r9	9
+#define	r10	10
+#define	r11	11
+#define	r12	12
+#define	r13	13
+#define	r14	14
+#define	r15	15
+#define	r16	16
+#define	r17	17
+#define	r18	18
+#define	r19	19
+#define	r20	20
+#define	r21	21
+#define	r22	22
+#define	r23	23
+#define	r24	24
+#define	r25	25
+#define	r26	26
+#define	r27	27
+#define	r28	28
+#define	r29	29
+#define	r30	30
+#define	r31	31
+
+#define curptr r2
+
+#define SYNC \
+	sync; \
+	isync
+
+/*
+ * Macros for storing registers into and loading registers from
+ * exception frames.
+ */
+#define SAVE_GPR(n, base)	stw	n,GPR0+4*(n)(base)
+#define SAVE_2GPRS(n, base)	SAVE_GPR(n, base); SAVE_GPR(n+1, base)
+#define SAVE_4GPRS(n, base)	SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
+#define SAVE_8GPRS(n, base)	SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
+#define SAVE_10GPRS(n, base)	SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
+#define REST_GPR(n, base)	lwz	n,GPR0+4*(n)(base)
+#define REST_2GPRS(n, base)	REST_GPR(n, base); REST_GPR(n+1, base)
+#define REST_4GPRS(n, base)	REST_2GPRS(n, base); REST_2GPRS(n+2, base)
+#define REST_8GPRS(n, base)	REST_4GPRS(n, base); REST_4GPRS(n+4, base)
+#define REST_10GPRS(n, base)	REST_8GPRS(n, base); REST_2GPRS(n+8, base)
+
+/*
+ * GCC sometimes accesses words at negative offsets from the stack
+ * pointer, although the SysV ABI says it shouldn't.  To cope with
+ * this, we leave this much untouched space on the stack on exception
+ * entry.
+ */
+#define STACK_UNDERHEAD	64
+
+/*
+ * Exception entry code.  This code runs with address translation
+ * turned off, i.e. using physical addresses.
+ * We assume sprg3 has the physical address of the current
+ * task's thread_struct.
+ */
+#define EXCEPTION_PROLOG(reg1, reg2)	\
+	mtspr	SPRG0,r20;	\
+	mtspr	SPRG1,r21;	\
+	mfcr	r20;		\
+	subi	r21,r1,INT_FRAME_SIZE+STACK_UNDERHEAD;	/* alloc exc. frame */\
+	stw	r20,_CCR(r21);		/* save registers */ \
+	stw	r22,GPR22(r21);	\
+	stw	r23,GPR23(r21);	\
+	mfspr	r20,SPRG0;	\
+	stw	r20,GPR20(r21);	\
+	mfspr	r22,SPRG1;	\
+	stw	r22,GPR21(r21);	\
+	mflr	r20;		\
+	stw	r20,_LINK(r21);	\
+	mfctr	r22;		\
+	stw	r22,_CTR(r21);	\
+	mfspr	r20,XER;	\
+	stw	r20,_XER(r21);	\
+	mfspr	r20, DAR_DEAR;	\
+	stw	r20,_DAR(r21);	\
+	mfspr	r22,reg1;	\
+	mfspr	r23,reg2;	\
+	stw	r0,GPR0(r21);	\
+	stw	r1,GPR1(r21);	\
+	stw	r2,GPR2(r21);	\
+	stw	r1,0(r21);	\
+	mr	r1,r21;			/* set new kernel sp */	\
+	SAVE_4GPRS(3, r21);
+/*
+ * Note: code which follows this uses cr0.eq (set if from kernel),
+ * r21, r22 (SRR0), and r23 (SRR1).
+ */
+
+/*
+ * Exception vectors.
+ *
+ * The data words for `hdlr' and `int_return' are initialized with
+ * OFFSET values only; they must be relocated first before they can
+ * be used!
+ */
+#define COPY_EE(d, s)		rlwimi d,s,0,16,16
+#define NOCOPY(d, s)
+#define EXC_XFER_TEMPLATE(label, hdlr, msr, copyee)	\
+	bl	1f;					\
+1:	mflr    r20;					\
+	lwz	r20,(.L_ ## label)-1b+8(r20);		\
+	mtlr	r20;					\
+	li	r20,msr;				\
+	copyee(r20,r23);				\
+	rlwimi	r20,r23,0,25,25;			\
+	blrl;						\
+.L_ ## label :						\
+	.long	hdlr - _start + _START_OFFSET;		\
+	.long	int_return - _start + _START_OFFSET;	\
+	.long	transfer_to_handler - _start + _START_OFFSET
+
+#define STD_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(SRR0, SRR1);				\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr, MSR_KERNEL, NOCOPY)	\
+
+#define CRIT_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(CSRR0, CSRR1);				\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr,				\
+	MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY)		\
+
+#define MCK_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(MCSRR0, MCSRR1);			\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr,				\
+	MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY)		\
+
+#endif	/* __PPC_ASM_TMPL__ */
diff --git a/arch/ppc/mach-mpc85xx/mp.c b/arch/ppc/mach-mpc85xx/mp.c
new file mode 100644
index 0000000..02dc7fa
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/mp.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <environment.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <mach/immap_85xx.h>
+#include <mach/early_udelay.h>
+#include <mach/mp.h>
+
+/*
+ * Determine if Barebox should keep secondary cores in reset, or let them out
+ * of reset and hold them in a spinloop.
+ *
+ */
+static int hold_cores_in_reset(int verbose)
+{
+	/* Do not hold core in reset. */
+	return 0;
+}
+
+static u32 determine_mp_bootpg(void)
+{
+	/* if we have 4G or more of memory, put the boot page at 4Gb-4k */
+	if ((u64)get_effective_memsize() > 0xfffff000)
+		return 0xfffff000;
+
+	return get_effective_memsize() - 4096;
+}
+
+static ulong get_spin_virt_addr(void)
+{
+	return BPTR_VIRT_ADDR + (ulong)&__spin_table -
+		(ulong)&__secondary_start_page;
+}
+
+static void plat_mp_up(unsigned long bootpg)
+{
+	u32 up, cpu_up_mask, whoami;
+	u32 *table = (u32 *)get_spin_virt_addr();
+	u32 bpcr;
+	void __iomem *local = (void __iomem *)(MPC85xx_LOCAL_ADDR);
+	void __iomem *ecm = (void __iomem *)(MPC85xx_ECM_ADDR);
+	void __iomem *gur = (void __iomem *)(MPC85xx_GUTS_ADDR);
+	void __iomem *pic = (void __iomem *)(MPC8xxx_PIC_ADDR);
+	u32 devdisr;
+	int timeout = 10;
+
+	whoami = in_be32(pic + MPC85xx_PIC_WHOAMI_OFFSET);
+	out_be32(local + MPC85xx_LOCAL_BPTR_OFFSET,
+		0x80000000 | (bootpg >> 12));
+
+	/* disable time base at the platform */
+	devdisr = in_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET);
+	if (whoami)
+		devdisr |= MPC85xx_DEVDISR_TB0;
+	else
+		devdisr |= MPC85xx_DEVDISR_TB1;
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+
+	up = ((1 << cpu_numcores()) - 1);
+	bpcr = in_be32(ecm + MPC85xx_ECM_EEBPCR_OFFSET);
+	bpcr |= (up << 24);
+	out_be32(ecm + MPC85xx_ECM_EEBPCR_OFFSET, bpcr);
+	asm("sync; isync; msync");
+
+	cpu_up_mask = 1 << whoami;
+	/* wait for everyone */
+	while (timeout) {
+		int i;
+		for (i = 0; i < cpu_numcores(); i++) {
+			if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER])
+				cpu_up_mask |= (1 << i);
+		};
+
+		if ((cpu_up_mask & up) == up)
+			break;
+
+		early_udelay(100);
+		timeout--;
+	}
+
+	if (timeout == 0)
+		debug("CPU up timeout. CPU up mask is %x should be %x\n",
+			cpu_up_mask, up);
+
+	/* enable time base at the platform */
+	if (whoami)
+		devdisr |= MPC85xx_DEVDISR_TB1;
+	else
+		devdisr |= MPC85xx_DEVDISR_TB0;
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+	mtspr(SPRN_TBWU, 0);
+	mtspr(SPRN_TBWL, 0);
+
+	devdisr &= ~(MPC85xx_DEVDISR_TB0 | MPC85xx_DEVDISR_TB1);
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+}
+
+void setup_mp(void)
+{
+	ulong fixup = (ulong)&__secondary_start_page;
+	u32 bootpg = determine_mp_bootpg();
+	int i;
+
+	if (hold_cores_in_reset(0))
+		return;
+
+	/* Store the bootpg's SDRAM address for use by secondary CPU cores */
+	__bootpg_addr = bootpg;
+
+	/* look for the tlb covering the reset page, there better be one */
+	i = find_tlb_idx((void *)BPTR_VIRT_ADDR, 1);
+
+	/* we found a match */
+	if (i != -1) {
+		/* map reset page to bootpg so we can copy code there */
+		disable_tlb(i);
+
+		set_tlb(1, BPTR_VIRT_ADDR, bootpg, /* tlb, epn, rpn */
+			MAS3_SX|MAS3_SW|MAS3_SR,
+			MAS2_I|MAS2_G, /* perms, wimge */
+			0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */
+
+		memcpy((void *)BPTR_VIRT_ADDR, (void *)fixup, 4096);
+
+		plat_mp_up(bootpg);
+	} else {
+		puts("WARNING: No reset page TLB. "
+			"Skipping secondary core setup\n");
+	}
+}
diff --git a/arch/ppc/mach-mpc85xx/speed.c b/arch/ppc/mach-mpc85xx/speed.c
new file mode 100644
index 0000000..074de55
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/speed.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003 Motorola Inc.
+ * Xianghua Xiao, (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/ppc_asm.tmpl>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <mach/mpc85xx.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+
+void get_sys_info(struct sys_info *sysInfo)
+{
+	void __iomem *gur = (void __iomem *)(MPC85xx_GUTS_ADDR);
+	uint plat_ratio, e500_ratio, half_freqSystemBus;
+	uint lcrr_div;
+	int i;
+
+	plat_ratio = in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) & 0x0000003e;
+	plat_ratio >>= 1;
+	sysInfo->freqSystemBus = plat_ratio * CFG_SYS_CLK_FREQ;
+
+	/*
+	 * Divide before multiply to avoid integer
+	 * overflow for processor speeds above 2GHz.
+	 */
+	half_freqSystemBus = sysInfo->freqSystemBus/2;
+	for (i = 0; i < cpu_numcores(); i++) {
+		e500_ratio = (in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) >>
+				(i * 8 + 16)) & 0x3f;
+		sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus;
+	}
+
+	/* Note: freqDDRBus is the MCLK frequency, not the data rate. */
+	sysInfo->freqDDRBus = sysInfo->freqSystemBus;
+
+#ifdef CFG_DDR_CLK_FREQ
+	{
+		u32 ddr_ratio = (in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) &
+					MPC85xx_PORPLLSR_DDR_RATIO) >>
+					MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
+		if (ddr_ratio != 0x7)
+			sysInfo->freqDDRBus = ddr_ratio * CFG_DDR_CLK_FREQ;
+	}
+#endif
+
+	lcrr_div = in_be32(LBC_BASE_ADDR + FSL_LBC_LCCR) & LCRR_CLKDIV;
+
+	if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) {
+		/*
+		 * The entire PQ38 family use the same bit-representation
+		 * for twice the clock divider values.
+		 */
+		lcrr_div *= 2;
+
+		sysInfo->freqLocalBus = sysInfo->freqSystemBus / lcrr_div;
+	} else {
+		/* In case anyone cares what the unknown value is */
+		sysInfo->freqLocalBus = lcrr_div;
+	}
+}
+
+unsigned long get_bus_freq(ulong dummy)
+{
+	struct sys_info sys_info;
+
+	get_sys_info(&sys_info);
+
+	return sys_info.freqSystemBus;
+}
diff --git a/include/linux/types.h b/include/linux/types.h
index 16cc3ce..76c6b67 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -144,8 +144,10 @@ typedef __u32 __bitwise __wsum;
 
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 typedef u64 phys_addr_t;
+typedef u64 phys_size_t;
 #else
 typedef u32 phys_addr_t;
+typedef u32 phys_size_t;
 #endif
 
 typedef phys_addr_t resource_size_t;
-- 
1.7.1


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V2 3/3] Minimal P2020RDB platform support and configuration file
  2012-04-13 13:04 [PATCH V2 0/3] MPC85xx support Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
  2012-04-13 13:04 ` [PATCH V2 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
@ 2012-04-13 13:04 ` Renaud Barbier
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
  3 siblings, 0 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-13 13:04 UTC (permalink / raw)
  To: s.hauer; +Cc: barebox

This is a limited board support for the P2020RDB platform.
The DDR is configured for a memory bus running at 667Mhz.
The board  boots from NOR flash and output the prompt to the
serial port at 115200 bauds. No other drivers are provided.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Makefile                                |    1 +
 arch/ppc/boards/freescale-p2020rdb/Makefile      |    4 +
 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S |  144 +++++++++++++
 arch/ppc/boards/freescale-p2020rdb/config.h      |   98 +++++++++
 arch/ppc/boards/freescale-p2020rdb/law.c         |   31 +++
 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c    |  237 ++++++++++++++++++++++
 arch/ppc/boards/freescale-p2020rdb/tlb.c         |   62 ++++++
 arch/ppc/configs/p2020rdb_defconfig              |   23 ++
 8 files changed, 600 insertions(+), 0 deletions(-)
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/Makefile
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/config.h
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/law.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/tlb.c
 create mode 100644 arch/ppc/configs/p2020rdb_defconfig

diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 6ab1db1..3231ac9 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -12,6 +12,7 @@ CPPFLAGS += -ffixed-r2 -Wa,-me500x2 -msoft-float -mno-string
 endif
 
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
+board-$(CONFIG_P2020RDB)			:= freescale-p2020rdb
 
 machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
 machine-$(CONFIG_ARCH_MPC85XX)			:= mpc85xx
diff --git a/arch/ppc/boards/freescale-p2020rdb/Makefile b/arch/ppc/boards/freescale-p2020rdb/Makefile
new file mode 100644
index 0000000..141b680
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/Makefile
@@ -0,0 +1,4 @@
+obj-y	+= p2020rdb.o
+obj-y	+= law.o
+obj-y	+= tlb.o
+extra-y += barebox.lds
diff --git a/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S b/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
new file mode 100644
index 0000000..cfccea9
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2007-2009, 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-generic/barebox.lds.h>
+
+#define RESET_VECTOR_ADDRESS	0xeffffffc
+
+OUTPUT_ARCH("powerpc")
+
+PHDRS
+{
+  text PT_LOAD;
+  bss PT_LOAD;
+}
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = TEXT_BASE;
+
+  .text      :
+  {
+    *(.text*)
+  } :text
+
+  _etext = .;
+  PROVIDE (etext = .);
+
+  .rodata    :
+  {
+    *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+  } :text
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+
+  _erotext = .;
+  PROVIDE (erotext = .);
+
+  .reloc   :
+  {
+    _GOT2_TABLE_ = .;
+    KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
+    _FIXUP_TABLE_ = .;
+    KEEP(*(.fixup))
+  }
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+  __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+  .data    :
+  {
+    *(.data*)
+    *(.data1*)
+    *(.sdata*)
+    *(.sdata2*)
+    *(.dynamic*)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+  __barebox_cmd_start = .;
+  .barebox_cmd : { BAREBOX_CMDS }
+  __barebox_cmd_end = .;
+
+  __barebox_initcalls_start = .;
+  .barebox_initcalls : { INITCALLS }
+  __barebox_initcalls_end = .;
+  __initcall_entries = (__barebox_initcalls_end - __barebox_initcalls_start)>>2;
+
+  __usymtab_start = .;
+  __usymtab : { BAREBOX_SYMS }
+  __usymtab_end = .;
+
+  __early_init_data_begin = .;
+  .early_init_data : { *(.early_init_data) }
+  __early_init_data_end = .;
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __init_size = __init_end - _start;
+
+  .bootpg RESET_VECTOR_ADDRESS - 0xffc :
+  {
+    _text = .;
+    _stext = .;
+    arch/ppc/cpu-85xx/start.o	(.bootpg)
+  } :text = 0xffff
+
+  .resetvec RESET_VECTOR_ADDRESS :
+  {
+    arch/ppc/cpu-85xx/resetvec.o	(.resetvec)
+  } :text = 0xffff
+
+  . = RESET_VECTOR_ADDRESS + 0x4;
+
+  . = 0x10000;
+  __bss_start = .;
+  .bss        :
+  {
+    *(.sbss*) *(.scommon*)
+    *(.dynbss*)
+    *(.bss*)
+    *(COMMON)
+  } :bss
+
+  . = ALIGN(4);
+  __bss_stop = .;
+  _end = . ;
+  PROVIDE (end = .);
+}
diff --git a/arch/ppc/boards/freescale-p2020rdb/config.h b/arch/ppc/boards/freescale-p2020rdb/config.h
new file mode 100644
index 0000000..c780747
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/config.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * P2020RDB board configuration file
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#ifndef __ASSEMBLY__
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+#endif
+#define CFG_SYS_CLK_FREQ	get_board_sys_clk(0)
+#define CFG_DDR_CLK_FREQ	66666666
+
+#define CFG_BTB			/* toggle branch predition */
+
+/*
+ * Base addresses -- Note these are effective addresses where the
+ * actual resources get mapped (not physical addresses)
+ */
+#define CFG_CCSRBAR_DEFAULT	0xff700000
+
+#define CFG_CCSRBAR		0xffe00000	/* relocated CCSRBAR */
+#define CFG_CCSRBAR_PHYS	CFG_CCSRBAR
+
+#define CFG_IMMR		CFG_CCSRBAR
+
+/* DDR Setup */
+
+#define CFG_CHIP_SELECTS_PER_CTRL   1
+
+#define CFG_SDRAM_BASE		0x00000000
+
+/* These timings are adjusted for a 667Mhz clock. */
+#define CFG_SYS_DDR_CS0_BNDS		0x0000003f	/* 1GB */
+#define CFG_SYS_DDR_CS0_CONFIG	        0x80014202
+#define CFG_SYS_DDR_TIMING_3		0x00030000
+#define CFG_SYS_DDR_TIMING_0		0x55770802
+#define CFG_SYS_DDR_TIMING_1		0x5f599543
+#define CFG_SYS_DDR_TIMING_2		0x0fa074d1
+
+#define CFG_SYS_DDR_CONTROL		0xc3000000
+#define CFG_SYS_DDR_CONTROL2		0x24401000
+#define CFG_SYS_DDR_MODE_1		0x00040852
+#define CFG_SYS_DDR_MODE_2		0x00000000
+#define CFG_SYS_MD_CNTL			0x00000000
+#define CFG_SYS_DDR_INTERVAL		0x0a280100
+
+#define CFG_SYS_DDR_DATA_INIT	        0xdeadbeef
+#define CFG_SYS_DDR_CLK_CTRL		0x03000000
+
+/*
+ * Memory map
+ *
+ * 0x0000_0000	0x3fff_ffff	DDR			1G cacheablen
+ *
+ * Localbus non-cacheable
+ * 0xef00_0000	0xefff_ffff	FLASH			16M non-cacheable
+ * 0xffd0_0000	0xffd0_3fff	L1 for stack		16K Cacheable TLB0
+ */
+
+/*
+ * Local Bus Definitions
+ */
+#define CFG_FLASH_BASE		0xef000000
+#define CFG_FLASH_BASE_PHYS	CFG_FLASH_BASE
+
+#define CFG_INIT_RAM_ADDR	0xffd00000	/* stack in RAM */
+/* Leave 256 bytes for global data */
+#define CFG_INIT_SP_OFFSET	(0x00004000 - 256)
+
+#define CFG_BR0_PRELIM	(BR_PHYS_ADDR(CFG_FLASH_BASE_PHYS) |	\
+			 BR_PS_16 | BR_V)	/* NOR Base Address */
+#define CFG_OR0_PRELIM  0xff000ff7		/* NOR Options      */
+
+#endif	/* __CONFIG_H */
diff --git a/arch/ppc/boards/freescale-p2020rdb/law.c b/arch/ppc/boards/freescale-p2020rdb/law.c
new file mode 100644
index 0000000..e748ccc
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/law.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CFG_FLASH_BASE_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
new file mode 100644
index 0000000..c28d452
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <init.h>
+#include <driver.h>
+#include <ns16550.h>
+#include <types.h>
+#include <partition.h>
+#include <memory.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+#include <mach/clocks.h>
+#include <mach/early_udelay.h>
+
+#define VSC7385_RST_SET		0x00080000
+#define SLIC_RST_SET		0x00040000
+#define SGMII_PHY_RST_SET	0x00020000
+#define PCIE_RST_SET		0x00010000
+#define RGMII_PHY_RST_SET	0x02000000
+
+#define USB_RST_CLR		0x04000000
+
+
+#define GPIO_DIR		0x060f0000
+
+#define BOARD_PERI_RST_SET	(VSC7385_RST_SET | SLIC_RST_SET | \
+				SGMII_PHY_RST_SET | PCIE_RST_SET | \
+				RGMII_PHY_RST_SET)
+
+#define SYSCLK_MASK	0x00200000
+#define BOARDREV_MASK	0x10100000
+#define BOARDREV_B	0x10100000
+#define BOARDREV_C	0x00100000
+#define BOARDREV_D	0x00000000
+
+#define SYSCLK_66	66666666
+#define SYSCLK_50	50000000
+#define SYSCLK_100	100000000
+
+static int devices_init(void)
+{
+	add_cfi_flash_device(-1, CFG_FLASH_BASE, 16 << 20, 0);
+
+	devfs_add_partition("nor0", 0xf80000, 0x80000, PARTITION_FIXED,
+			    "self0");
+	return 0;
+}
+
+device_initcall(devices_init);
+
+static struct NS16550_plat serial_plat = {
+	.clock = 0,
+	.shift = 0,
+};
+
+static int p2020_console_init(void)
+{
+	serial_plat.clock = get_bus_freq(0);
+
+	add_ns16550_device(-1, 0xffe04500, 16, IORESOURCE_MEM_8BIT,
+			   &serial_plat);
+	return 0;
+}
+
+console_initcall(p2020_console_init);
+
+static int mem_init(void)
+{
+	barebox_add_memory_bank("ram0", 0x0, 1024 << 20);
+
+	return 0;
+}
+mem_initcall(mem_init);
+
+/*
+ * fixed_sdram: fixed sdram settings.
+ *
+ * This function is used for debugging purpose and in case there is
+ * a failure with the SPD.
+ */
+phys_size_t fixed_sdram(void)
+{
+	void __iomem *regs = (void __iomem *)(MPC85xx_DDR_ADDR);
+	int sdram_cfg = (SDRAM_CFG_MEM_EN | SDRAM_CFG_SREN |
+			 SDRAM_CFG_SDRAM_TYPE_DDR2);
+	phys_size_t dram_size;
+
+	/* If already enabled (running from RAM), get out */
+	if (in_be32(regs + DDR_OFF(SDRAM_CFG)) & SDRAM_CFG_MEM_EN)
+		return get_effective_memsize();
+
+	out_be32(regs + DDR_OFF(CS0_BNDS), CFG_SYS_DDR_CS0_BNDS);
+	out_be32(regs + DDR_OFF(CS0_CONFIG), CFG_SYS_DDR_CS0_CONFIG);
+	out_be32(regs + DDR_OFF(TIMING_CFG_3), CFG_SYS_DDR_TIMING_3);
+	out_be32(regs + DDR_OFF(TIMING_CFG_0), CFG_SYS_DDR_TIMING_0);
+	out_be32(regs + DDR_OFF(TIMING_CFG_1), CFG_SYS_DDR_TIMING_1);
+	out_be32(regs + DDR_OFF(TIMING_CFG_2), CFG_SYS_DDR_TIMING_2);
+	out_be32(regs + DDR_OFF(SDRAM_CFG_2), CFG_SYS_DDR_CONTROL2);
+	out_be32(regs + DDR_OFF(SDRAM_MODE), CFG_SYS_DDR_MODE_1);
+	out_be32(regs + DDR_OFF(SDRAM_MODE_2), CFG_SYS_DDR_MODE_2);
+	out_be32(regs + DDR_OFF(SDRAM_MD_CNTL), CFG_SYS_MD_CNTL);
+	/* Basic refresh rate (7.8us),high temp is 3.9us  */
+	out_be32(regs + DDR_OFF(SDRAM_INTERVAL),
+			CFG_SYS_DDR_INTERVAL);
+	out_be32(regs + DDR_OFF(SDRAM_DATA_INIT),
+			CFG_SYS_DDR_DATA_INIT);
+	out_be32(regs + DDR_OFF(SDRAM_CLK_CNTL),
+			CFG_SYS_DDR_CLK_CTRL);
+
+	out_be32(regs + DDR_OFF(SDRAM_INIT_ADDR), 0);
+	out_be32(regs + DDR_OFF(SDRAM_INIT_ADDR_EXT), 0);
+	/*
+	 * Wait 200us for the DDR clock to stabilize.
+	 */
+	early_udelay(200);
+	asm volatile ("sync;isync");
+
+	out_be32(regs + DDR_OFF(SDRAM_CFG), sdram_cfg);
+
+	dram_size = get_effective_memsize();
+	if (set_ddr_laws(0, dram_size, LAW_TRGT_IF_DDR) < 0)
+		return 0;
+
+	return dram_size;
+}
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+	u32 val_gpdat, sysclk_gpio, board_rev_gpio;
+	void __iomem *gpio_regs = (void __iomem *)MPC85xx_GPIO_ADDR;
+
+	val_gpdat = in_be32(gpio_regs + MPC85xx_GPIO_GPDAT);
+	sysclk_gpio = val_gpdat & SYSCLK_MASK;
+	board_rev_gpio = val_gpdat & BOARDREV_MASK;
+
+	if (board_rev_gpio == BOARDREV_C) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_100;
+	} else if (board_rev_gpio == BOARDREV_B) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_50;
+	} else if (board_rev_gpio == BOARDREV_D) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_100;
+	}
+	return 0;
+}
+
+static void checkboard(void)
+{
+	u32 val_gpdat, board_rev_gpio;
+	void __iomem *gpio_regs = (void __iomem *)MPC85xx_GPIO_ADDR;
+
+	val_gpdat = in_be32(gpio_regs + MPC85xx_GPIO_GPDAT);
+	board_rev_gpio = val_gpdat & BOARDREV_MASK;
+
+	if ((board_rev_gpio != BOARDREV_C) && (board_rev_gpio != BOARDREV_B) &&
+	    (board_rev_gpio != BOARDREV_D))
+		panic("Unexpected Board REV %x detected!!\n", board_rev_gpio);
+
+	setbits_be32((gpio_regs + MPC85xx_GPIO_GPDIR), GPIO_DIR);
+
+	/*
+	 * Bringing the following peripherals out of reset via GPIOs
+	 * 0 = reset and 1 = out of reset
+	 * GPIO12 - Reset to Ethernet Switch
+	 * GPIO13 - Reset to SLIC/SLAC devices
+	 * GPIO14 - Reset to SGMII_PHY_N
+	 * GPIO15 - Reset to PCIe slots
+	 * GPIO6  - Reset to RGMII PHY
+	 * GPIO5  - Reset to USB3300 devices 1 = reset and 0 = out of reset
+	 */
+	clrsetbits_be32((gpio_regs + MPC85xx_GPIO_GPDAT), USB_RST_CLR,
+			BOARD_PERI_RST_SET);
+}
+
+static int board_init_r(void)
+{
+	const unsigned int flashbase = CFG_FLASH_BASE;
+	const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
+
+	checkboard();
+
+	/* Flush d-cache and invalidate i-cache of any FLASH data */
+	flush_dcache();
+	invalidate_icache();
+
+	/* invalidate existing TLB entry for flash */
+	disable_tlb(flash_esel);
+
+	/*
+	 * Remap Boot flash region to caching-inhibited
+	 * so that flash can be erased properly.
+	 */
+	set_tlb(1, flashbase, CFG_FLASH_BASE_PHYS,
+		MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		0, flash_esel, BOOKE_PAGESZ_16M, 1);
+
+	l2_cache_init();
+
+	setup_mp();
+
+	return 0;
+}
+core_initcall(board_init_r);
diff --git a/arch/ppc/boards/freescale-p2020rdb/tlb.c b/arch/ppc/boards/freescale-p2020rdb/tlb.c
new file mode 100644
index 0000000..037f429
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/tlb.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR, CFG_INIT_RAM_ADDR,
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (4 * 1024),
+			CFG_INIT_RAM_ADDR + (4 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (8 * 1024),
+			CFG_INIT_RAM_ADDR + (8 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (12 * 1024),
+			CFG_INIT_RAM_ADDR + (12 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 0, BOOKE_PAGESZ_4K, 1),
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 1, BOOKE_PAGESZ_1M, 1),
+
+	/* W**G* - Flash/promjet, localbus */
+	/* This will be changed to *I*G* after relocation to RAM. */
+	SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE_PHYS,
+			MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
+			0, 2, BOOKE_PAGESZ_16M, 1),
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/arch/ppc/configs/p2020rdb_defconfig b/arch/ppc/configs/p2020rdb_defconfig
new file mode 100644
index 0000000..f8a0687
--- /dev/null
+++ b/arch/ppc/configs/p2020rdb_defconfig
@@ -0,0 +1,23 @@
+CONFIG_ARCH_MPC85XX=y
+CONFIG_P2020RDB=y
+CONFIG_P2020=y
+CONFIG_LONGHELP=y
+CONFIG_GLOB=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_FLASH=y
+CONFIG_CMD_RESET=y
+CONFIG_CMD_GO=y
+CONFIG_FSL_ELBC=y
+CONFIG_DRIVER_CFI=y
+CONFIG_DRIVER_CFI_AMD=y
+CONFIG_DRIVER_CFI_INTEL=n
+CONFIG_DRIVER_CFI_BANK_WIDTH_1=n
+CONFIG_DRIVER_CFI_BANK_WIDTH_2=y
+CONFIG_DRIVER_CFI_BANK_WIDTH_4=n
+CONFIG_MTD=y
+CONFIG_MALLOC_SIZE=0x200000
+CONFIG_BAUDRATE=115200
+CONFIG_DRIVER_SERIAL_NS16550=y
+CONFIG_RELOCATABLE=y
-- 
1.7.1


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH V2 0/3] MPC85xx support
  2012-04-13 13:04 [PATCH V2 0/3] MPC85xx support Renaud Barbier
                   ` (2 preceding siblings ...)
  2012-04-13 13:04 ` [PATCH V2 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier
@ 2012-04-15 14:59 ` Sascha Hauer
  2012-04-20  9:21   ` [PATCH V3 " Renaud Barbier
                     ` (3 more replies)
  3 siblings, 4 replies; 11+ messages in thread
From: Sascha Hauer @ 2012-04-15 14:59 UTC (permalink / raw)
  To: Renaud Barbier; +Cc: barebox

Hi Renaud,

On Fri, Apr 13, 2012 at 02:04:29PM +0100, Renaud Barbier wrote:
> This patchset introduces the MPC85xx architecture to Barebox. The
> existing PPC code is modified to enable multiple PowerPC architecture
> support. All existing architecture specific MPC5xxx code which prevents
> adding additional architectures is moved into the architecture specific
> subdirectories and the PCM030 configuration fixed to use this new
> configuration.
> 
> Base MPC85xx infrastructure is added to enable the required
> functionality for a minimal boot target in 32 bit addressing mode
> using an e500v2 core.
> 
> Finally support is added for a minimal Freescale P2020RDB platform with
> driver support currently limited to NOR and serial port only.
> 
> Renaud Barbier (3):
>   Preparation stage to support multiple PPC architectures
>   Minimal support of the MPC85xx architecture
>   Minimal P2020RDB platform support and configuration file
> 

Much better than the last version, thanks.

I realized that you base parts of your code on the unused board_data. I
just sent out a patch to remove the unused code, and you shouldn't use
it on the new mpc85xx support also.

I'll have a close look at your series later, this is only one thing I
realized when looking at it.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V3 0/3] MPC85xx support
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
@ 2012-04-20  9:21   ` Renaud Barbier
  2012-04-20  9:21   ` [PATCH V3 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
                     ` (2 subsequent siblings)
  3 siblings, 0 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-20  9:21 UTC (permalink / raw)
  To: barebox

This is an update of the patchset to address the removal of the unused
board_data.

This patchset introduces the MPC85xx architecture to Barebox. The
existing PPC code is modified to enable multiple PowerPC architecture
support. All existing architecture specific MPC5xxx code which prevents
adding additional architectures is moved into the architecture specific
subdirectories and the PCM030 configuration fixed to use this new
configuration.

Base MPC85xx infrastructure is added to enable the required
functionality for a minimal boot target in 32 bit addressing mode
using an e500v2 core.

Finally support is added for a minimal Freescale P2020RDB platform with
driver support currently limited to NOR and serial port only.

Renaud Barbier (3):
  Preparation stage to support multiple PPC architectures
  Minimal support of the MPC85xx architecture
  Minimal P2020RDB platform support and configuration file

 arch/ppc/Kconfig                                  |   45 +-
 arch/ppc/Makefile                                 |   27 +-
 arch/ppc/boards/freescale-p2020rdb/Makefile       |    4 +
 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S  |  144 +++
 arch/ppc/boards/freescale-p2020rdb/config.h       |   98 ++
 arch/ppc/boards/freescale-p2020rdb/law.c          |   31 +
 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c     |  237 +++++
 arch/ppc/boards/freescale-p2020rdb/tlb.c          |   62 ++
 arch/ppc/configs/p2020rdb_defconfig               |   23 +
 arch/ppc/configs/pcm030_defconfig                 |    3 +
 arch/ppc/cpu-85xx/Makefile                        |    7 +
 arch/ppc/cpu-85xx/cpu.c                           |  103 ++
 arch/ppc/cpu-85xx/cpu_init.c                      |  145 +++
 arch/ppc/cpu-85xx/fixed_ivor.S                    |   61 ++
 arch/ppc/cpu-85xx/release.S                       |  265 +++++
 arch/ppc/cpu-85xx/resetvec.S                      |    2 +
 arch/ppc/cpu-85xx/start.S                         | 1097 +++++++++++++++++++++
 arch/ppc/cpu-85xx/tlb.c                           |  228 +++++
 arch/ppc/cpu-85xx/traps.c                         |  300 ++++++
 arch/ppc/include/asm/bitops.h                     |   42 +
 arch/ppc/include/asm/cache.h                      |   19 +-
 arch/ppc/include/asm/common.h                     |    2 +
 arch/ppc/include/asm/config.h                     |   44 +
 arch/ppc/include/asm/config_mpc85xx.h             |   37 +
 arch/ppc/include/asm/e500.h                       |   39 +
 arch/ppc/include/asm/fsl_ddr_sdram.h              |   34 +
 arch/ppc/include/asm/fsl_i2c.h                    |   10 +-
 arch/ppc/include/asm/fsl_law.h                    |   91 ++
 arch/ppc/include/asm/fsl_lbc.h                    |   67 ++
 arch/ppc/include/asm/global_data.h                |   56 ++
 arch/ppc/include/asm/io.h                         |   20 +
 arch/ppc/include/asm/mmu.h                        |   69 ++-
 arch/ppc/include/asm/processor.h                  |   44 +
 arch/ppc/lib/Makefile                             |    4 +-
 arch/ppc/lib/board.c                              |   11 +-
 arch/ppc/lib/reloc.S                              |   47 +
 arch/ppc/lib/{time.c => time-mpc5200.c}           |   27 +-
 arch/ppc/lib/{time.c => time-mpc85xx.c}           |   34 +-
 arch/ppc/mach-mpc5xxx/Kconfig                     |   43 +-
 arch/ppc/mach-mpc5xxx/pci_mpc5200.c               |    2 +-
 arch/ppc/mach-mpc5xxx/start.S                     |    2 +-
 arch/ppc/mach-mpc5xxx/traps.c                     |    6 +-
 arch/ppc/mach-mpc85xx/Kconfig                     |   45 +
 arch/ppc/mach-mpc85xx/Makefile                    |    5 +
 arch/ppc/mach-mpc85xx/cpuid.c                     |   69 ++
 arch/ppc/mach-mpc85xx/fsl_law.c                   |  156 +++
 arch/ppc/mach-mpc85xx/fsl_lbc.c                   |   17 +
 arch/ppc/mach-mpc85xx/include/mach/clocks.h       |   11 +
 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h |   33 +
 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h   |  132 +++
 arch/ppc/mach-mpc85xx/include/mach/mp.h           |   15 +
 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h      |   17 +
 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl   |  208 ++++
 arch/ppc/mach-mpc85xx/mp.c                        |  156 +++
 arch/ppc/mach-mpc85xx/speed.c                     |   97 ++
 include/linux/types.h                             |    2 +
 56 files changed, 4462 insertions(+), 133 deletions(-)
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/Makefile
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/config.h
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/law.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/tlb.c
 create mode 100644 arch/ppc/configs/p2020rdb_defconfig
 create mode 100644 arch/ppc/cpu-85xx/Makefile
 create mode 100644 arch/ppc/cpu-85xx/cpu.c
 create mode 100644 arch/ppc/cpu-85xx/cpu_init.c
 create mode 100644 arch/ppc/cpu-85xx/fixed_ivor.S
 create mode 100644 arch/ppc/cpu-85xx/release.S
 create mode 100644 arch/ppc/cpu-85xx/resetvec.S
 create mode 100644 arch/ppc/cpu-85xx/start.S
 create mode 100644 arch/ppc/cpu-85xx/tlb.c
 create mode 100644 arch/ppc/cpu-85xx/traps.c
 create mode 100644 arch/ppc/include/asm/config.h
 create mode 100644 arch/ppc/include/asm/config_mpc85xx.h
 create mode 100644 arch/ppc/include/asm/e500.h
 create mode 100644 arch/ppc/include/asm/fsl_ddr_sdram.h
 create mode 100644 arch/ppc/include/asm/fsl_law.h
 create mode 100644 arch/ppc/include/asm/fsl_lbc.h
 create mode 100644 arch/ppc/include/asm/global_data.h
 create mode 100644 arch/ppc/lib/reloc.S
 copy arch/ppc/lib/{time.c => time-mpc5200.c} (71%)
 rename arch/ppc/lib/{time.c => time-mpc85xx.c} (65%)
 create mode 100644 arch/ppc/mach-mpc85xx/Kconfig
 create mode 100644 arch/ppc/mach-mpc85xx/Makefile
 create mode 100644 arch/ppc/mach-mpc85xx/cpuid.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_law.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_lbc.c
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/clocks.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mp.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
 create mode 100644 arch/ppc/mach-mpc85xx/mp.c
 create mode 100644 arch/ppc/mach-mpc85xx/speed.c


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V3 1/3] Preparation stage to support multiple PPC architectures
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
  2012-04-20  9:21   ` [PATCH V3 " Renaud Barbier
@ 2012-04-20  9:21   ` Renaud Barbier
  2012-04-23  7:15     ` Sascha Hauer
  2012-04-20  9:21   ` [PATCH V3 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
  2012-04-20  9:21   ` [PATCH V3 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier
  3 siblings, 1 reply; 11+ messages in thread
From: Renaud Barbier @ 2012-04-20  9:21 UTC (permalink / raw)
  To: barebox

arch/ppc/Kconfig is reworked to make the configuration environment
architecture neutral. All MPC5200 configuration is moved to the
MPC5200 architecture specific configuration file. These modifications
are reflected in the PCM030 board support.

arch/ppc/Makefile compilation directives are updated in preparation
for the introduction of future cpus/machines.

lib/time.c is moved to an architecture specific version and the
building instructions updated in the Makefile. The file
now named time-mpc5200.c is cleaned up of unused code.

The definition of L1_CACHE_... is updated and CACHELINE_SIZE is
defined in ppc/include/asm/cache.h for future use by the mpc85xx.
The file mach-mpc5xxx/pci_mpc5200.c and mach-mpc5xxx/start.S are
updated accordingly.

The declaration of search_exception_table is moved in
include/asm/common.h because it is used across architectures.
mach-mpc5xxx/traps.c is also updated to reflect this change.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Kconfig                        |   42 +++---------------------------
 arch/ppc/Makefile                       |   19 ++++++++-----
 arch/ppc/configs/pcm030_defconfig       |    3 ++
 arch/ppc/include/asm/cache.h            |   17 +++++-------
 arch/ppc/include/asm/common.h           |    1 +
 arch/ppc/lib/Makefile                   |    2 +-
 arch/ppc/lib/{time.c => time-mpc5200.c} |   27 ++-----------------
 arch/ppc/mach-mpc5xxx/Kconfig           |   43 ++++++++++++++++++++++++++++++-
 arch/ppc/mach-mpc5xxx/pci_mpc5200.c     |    2 +-
 arch/ppc/mach-mpc5xxx/start.S           |    2 +-
 arch/ppc/mach-mpc5xxx/traps.c           |    6 +---
 11 files changed, 76 insertions(+), 88 deletions(-)
 rename arch/ppc/lib/{time.c => time-mpc5200.c} (71%)

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 4c7b7cd..164598f 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -1,51 +1,17 @@
-
-config BOARDINFO
-	default "Phytec Phycore mpc5200b tiny" if MACH_PHYCORE_MPC5200B_TINY
-	
-config ARCH_TEXT_BASE
-	hex
-	default 0x00000000 if RELOCATABLE
-	default 0x01000000 if MACH_PHYCORE_MPC5200B_TINY
-
 config PPC
 	bool
 	select HAVE_CONFIGURABLE_TEXT_BASE
 	select HAS_KALLSYMS
 	select HAS_MODULES
 	select HAVE_CONFIGURABLE_MEMORY_LAYOUT
-	select HAVE_CONFIGURABLE_TEXT_BASE
 	default y
 
-# Uh, we should decide which one we want to use
-config ARCH_MPC5200
-	bool
-
-config MPC5200
-	bool
-
-config MPC5xxx
-	bool
-
-config CACHELINE_SIZE
-	int
-	default 32 if ARCH_MPC5200
-
-config HAS_REGINFO
-	bool
-	default y if ARCH_MPC5200
-
 choice
-	prompt "Select your board"
+	prompt "Processor type"
+
+config ARCH_MPC5XXX
+	bool "Freescale MPC5xxx"
 
-config MACH_PHYCORE_MPC5200B_TINY
-	bool "Phycore mpc5200b tiny"
-	select ARCH_MPC5200
-	select MPC5200
-	select MPC5xxx
-	select HAS_CFI
-	help
-	  Say Y here if you are using the Phytec Phycore MPC5200B Tiny
-	  board aka pcm030
 endchoice
 
 source arch/ppc/mach-mpc5xxx/Kconfig
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index c7bf863..2d9e47f 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -1,16 +1,15 @@
 
-CPPFLAGS += -ffixed-r14 	\
+CPPFLAGS += -ffixed-r14 -m32 	\
 	-meabi -D __PPC__ -D CONFIG_PPC \
-	-fno-strict-aliasing
+	-fno-strict-aliasing -mno-spe -mspe=no
 
 ifdef CONFIG_RELOCATABLE
 CPPFLAGS += -fPIC -mrelocatable
 endif
 
 
-machine-$(CONFIG_ARCH_MPC5200)			:= mpc5200
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
-cpu-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
+machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
 
 TEXT_BASE = $(CONFIG_TEXT_BASE)
 
@@ -21,7 +20,7 @@ ifndef CONFIG_MODULES
 CPPFLAGS += -fdata-sections -ffunction-sections
 endif
 
-machdirs := $(patsubst %,arch/ppc/mach-%/,$(cpu-y))
+machdirs := $(patsubst %,arch/ppc/mach-%/,$(machine-y))
 
 ifeq ($(KBUILD_SRC),)
 CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
@@ -40,13 +39,19 @@ else
 BOARD  :=
 endif
 
+ifneq ($(machine-y),)
+MACH  := arch/ppc/mach-$(machine-y)/
+else
+MACH  :=
+endif
+
 ifneq ($(cpu-y),)
-CPU  := arch/ppc/mach-$(cpu-y)/
+CPU  := arch/ppc/cpu-$(cpu-y)/
 else
 CPU  :=
 endif
 
-common-y += $(BOARD) $(CPU)
+common-y += $(BOARD) $(CPU) $(MACH)
 common-y += arch/ppc/lib/
 
 lds-y += $(BOARD)/barebox.lds
diff --git a/arch/ppc/configs/pcm030_defconfig b/arch/ppc/configs/pcm030_defconfig
index 5de1c75..c037502 100644
--- a/arch/ppc/configs/pcm030_defconfig
+++ b/arch/ppc/configs/pcm030_defconfig
@@ -32,6 +32,9 @@ CONFIG_NET=y
 CONFIG_NET_DHCP=y
 CONFIG_NET_PING=y
 CONFIG_NET_TFTP=y
+CONFIG_ARCH_MPC5XXX=y
+CONFIG_MACH_PHYCORE_MPC5200B_TINY=y
+CONFIG_DRIVER_NET_MPC5200=y
 CONFIG_DRIVER_CFI=y
 CONFIG_CFI_BUFFER_WRITE=y
 CONFIG_ZLIB=y
diff --git a/arch/ppc/include/asm/cache.h b/arch/ppc/include/asm/cache.h
index f37af97..4f7ca86 100644
--- a/arch/ppc/include/asm/cache.h
+++ b/arch/ppc/include/asm/cache.h
@@ -6,16 +6,13 @@
 
 #include <asm/processor.h>
 
-/* bytes per L1 cache line */
-#if !defined(CONFIG_8xx) || defined(CONFIG_8260)
-#if defined(CONFIG_PPC64BRIDGE)
-#define L1_CACHE_BYTES	128
-#else
-#define	L1_CACHE_BYTES  32
-#endif /* PPC64 */
-#else
-#define	L1_CACHE_BYTES	16
-#endif /* !8xx || 8260 */
+/* bytes per L1 cache line. CPU dependent */
+#define L1_CACHE_SHIFT	5
+#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+
+#ifndef CACHELINE_SIZE
+#define CACHELINE_SIZE	L1_CACHE_BYTES
+#endif
 
 #define	L1_CACHE_ALIGN(x)       (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1))
 #define	L1_CACHE_PAGES		8
diff --git a/arch/ppc/include/asm/common.h b/arch/ppc/include/asm/common.h
index b375d07..045817b 100644
--- a/arch/ppc/include/asm/common.h
+++ b/arch/ppc/include/asm/common.h
@@ -31,4 +31,5 @@ static inline unsigned long get_pc(void)
 	return pc;
 }
 
+extern unsigned long search_exception_table(unsigned long);
 #endif /* __ASM_COMMON_H */
diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile
index 9e389b7..e93f32f 100644
--- a/arch/ppc/lib/Makefile
+++ b/arch/ppc/lib/Makefile
@@ -4,7 +4,7 @@ obj-y += extable.o
 obj-y += kgdb.o
 obj-y += ppcstring.o
 obj-y += ticks.o
-obj-y += time.o
+obj-$(CONFIG_MPC5200) += time-mpc5200.o
 obj-y += misc.o
 obj-$(CONFIG_CMD_BOOTM) += ppclinux.o
 obj-$(CONFIG_MODULES) += module.o
diff --git a/arch/ppc/lib/time.c b/arch/ppc/lib/time-mpc5200.c
similarity index 71%
rename from arch/ppc/lib/time.c
rename to arch/ppc/lib/time-mpc5200.c
index 04c71df..b35859a 100644
--- a/arch/ppc/lib/time.c
+++ b/arch/ppc/lib/time-mpc5200.c
@@ -27,28 +27,6 @@
 #include <mach/clocks.h>
 #include <asm/common.h>
 
-/* ------------------------------------------------------------------------- */
-
-static int init_timebase (void)
-{
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx)
-	volatile immap_t *immap = (immap_t *) CFG_IMMR;
-
-	/* unlock */
-	immap->im_sitk.sitk_tbk = KAPWR_KEY;
-#endif
-
-	/* reset */
-	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
-
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx)
-	/* enable */
-	immap->im_sit.sit_tbscr |= TBSCR_TBE;
-#endif
-	return (0);
-}
-/* ------------------------------------------------------------------------- */
-
 uint64_t ppc_clocksource_read(void)
 {
 	return get_ticks();
@@ -60,9 +38,10 @@ static struct clocksource cs = {
 	.shift	= 15,
 };
 
-static int clocksource_init (void)
+static int clocksource_init(void)
 {
-	init_timebase();
+	/* reset time base */
+	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
 
 	cs.mult = clocksource_hz2mult(get_timebase_clock(), cs.shift);
 
diff --git a/arch/ppc/mach-mpc5xxx/Kconfig b/arch/ppc/mach-mpc5xxx/Kconfig
index 632fb85..db4f391 100644
--- a/arch/ppc/mach-mpc5xxx/Kconfig
+++ b/arch/ppc/mach-mpc5xxx/Kconfig
@@ -1,4 +1,44 @@
-menu "Board specific settings       "
+if ARCH_MPC5XXX
+
+config BOARDINFO
+	default "Phytec Phycore mpc5200b tiny" if MACH_PHYCORE_MPC5200B_TINY
+
+config ARCH_TEXT_BASE
+	hex
+	default 0x00000000 if RELOCATABLE
+	default 0x01000000 if MACH_PHYCORE_MPC5200B_TINY
+
+config HAS_REGINFO
+	bool
+	default y if ARCH_MPC5200
+
+choice
+	prompt "Select your board"
+
+config MACH_PHYCORE_MPC5200B_TINY
+	bool "Phycore mpc5200b tiny"
+	select HAS_CFI
+	help
+	  Say Y here if you are using the Phytec Phycore MPC5200B Tiny
+	  board aka pcm030.
+endchoice
+
+config MPC5200
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+config ARCH_MPC5200
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+config MPC5xxx
+	bool
+	depends on MACH_PHYCORE_MPC5200B_TINY
+	default y
+
+menu "Board specific settings"
 
 config MACH_PHYCORE_MPC5200B_TINY_REV
 	int "Board Revision"
@@ -10,3 +50,4 @@ config MACH_PHYCORE_MPC5200B_TINY_REV
 	  old board you should set this option to 1
 
 endmenu
+endif
diff --git a/arch/ppc/mach-mpc5xxx/pci_mpc5200.c b/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
index d8f3b00..625d17f 100644
--- a/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
+++ b/arch/ppc/mach-mpc5xxx/pci_mpc5200.c
@@ -125,7 +125,7 @@ void pci_mpc5xxx_init (struct pci_controller *hose)
 
 	/* Set cache line size */
 	*(vu_long *)MPC5XXX_PCI_CFG = (*(vu_long *)MPC5XXX_PCI_CFG & ~0xff) |
-		(CONFIG_CACHELINE_SIZE / 4);
+		(CACHELINE_SIZE / 4);
 
 	/* Map MBAR to PCI space */
 	*(vu_long *)MPC5XXX_PCI_BAR0 = CFG_MBAR;
diff --git a/arch/ppc/mach-mpc5xxx/start.S b/arch/ppc/mach-mpc5xxx/start.S
index 7a4c16b..0110022 100644
--- a/arch/ppc/mach-mpc5xxx/start.S
+++ b/arch/ppc/mach-mpc5xxx/start.S
@@ -287,7 +287,7 @@ before_relocate:
 	 *
 	 */
 
-	li	r6, CONFIG_CACHELINE_SIZE		/* Cache Line Size	*/
+	li	r6, CACHELINE_SIZE
 
 	/*
 	 * Fix GOT pointer:
diff --git a/arch/ppc/mach-mpc5xxx/traps.c b/arch/ppc/mach-mpc5xxx/traps.c
index 47d1406..806b976 100644
--- a/arch/ppc/mach-mpc5xxx/traps.c
+++ b/arch/ppc/mach-mpc5xxx/traps.c
@@ -41,11 +41,7 @@
 int (*debugger_exception_handler)(struct pt_regs *) = 0;
 #endif
 
-/* Returns 0 if exception not found and fixup otherwise.  */
-extern unsigned long search_exception_table(unsigned long);
-
-/* THIS NEEDS CHANGING to use the board info structure.
-*/
+/* THIS NEEDS CHANGING to use the board info structure.  */
 #define END_OF_MEM	0x02000000
 
 /*
-- 
1.7.1


_______________________________________________
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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V3 2/3] Minimal support of the MPC85xx architecture
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
  2012-04-20  9:21   ` [PATCH V3 " Renaud Barbier
  2012-04-20  9:21   ` [PATCH V3 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
@ 2012-04-20  9:21   ` Renaud Barbier
  2012-04-23  8:13     ` Sascha Hauer
  2012-04-20  9:21   ` [PATCH V3 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier
  3 siblings, 1 reply; 11+ messages in thread
From: Renaud Barbier @ 2012-04-20  9:21 UTC (permalink / raw)
  To: barebox

The directories cpu-85xx and mach-mpc85xx contain a minimal CPU support
suitable for the P2020RDB board. This includes startup code for the CPU,
peripherals and clock source initialization as well as header files
and updates to configuration and build files.

Also the introduction of the new CPU architecture and board support
leads to the update of existing header files. Are added:
 - functions and macros to manipulate bits of registers field values.
 - external declaration of cache handling functions to prevent
   compilation warnings.
 - new processor definitions.
 - macros (in replacement of existing definitions) to set 85xx TLB
   registers.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Kconfig                                  |    3 +
 arch/ppc/Makefile                                 |    7 +
 arch/ppc/cpu-85xx/Makefile                        |    7 +
 arch/ppc/cpu-85xx/cpu.c                           |  103 ++
 arch/ppc/cpu-85xx/cpu_init.c                      |  145 +++
 arch/ppc/cpu-85xx/fixed_ivor.S                    |   61 ++
 arch/ppc/cpu-85xx/release.S                       |  265 +++++
 arch/ppc/cpu-85xx/resetvec.S                      |    2 +
 arch/ppc/cpu-85xx/start.S                         | 1097 +++++++++++++++++++++
 arch/ppc/cpu-85xx/tlb.c                           |  228 +++++
 arch/ppc/cpu-85xx/traps.c                         |  300 ++++++
 arch/ppc/include/asm/bitops.h                     |   42 +
 arch/ppc/include/asm/cache.h                      |    2 +
 arch/ppc/include/asm/common.h                     |    1 +
 arch/ppc/include/asm/config.h                     |   44 +
 arch/ppc/include/asm/config_mpc85xx.h             |   37 +
 arch/ppc/include/asm/e500.h                       |   39 +
 arch/ppc/include/asm/fsl_ddr_sdram.h              |   34 +
 arch/ppc/include/asm/fsl_i2c.h                    |   10 +-
 arch/ppc/include/asm/fsl_law.h                    |   91 ++
 arch/ppc/include/asm/fsl_lbc.h                    |   67 ++
 arch/ppc/include/asm/global_data.h                |   56 ++
 arch/ppc/include/asm/io.h                         |   20 +
 arch/ppc/include/asm/mmu.h                        |   69 ++-
 arch/ppc/include/asm/processor.h                  |   44 +
 arch/ppc/lib/Makefile                             |    2 +
 arch/ppc/lib/board.c                              |   11 +-
 arch/ppc/lib/reloc.S                              |   47 +
 arch/ppc/lib/time-mpc85xx.c                       |   54 +
 arch/ppc/mach-mpc85xx/Kconfig                     |   45 +
 arch/ppc/mach-mpc85xx/Makefile                    |    5 +
 arch/ppc/mach-mpc85xx/cpuid.c                     |   69 ++
 arch/ppc/mach-mpc85xx/fsl_law.c                   |  156 +++
 arch/ppc/mach-mpc85xx/fsl_lbc.c                   |   17 +
 arch/ppc/mach-mpc85xx/include/mach/clocks.h       |   11 +
 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h |   33 +
 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h   |  132 +++
 arch/ppc/mach-mpc85xx/include/mach/mp.h           |   15 +
 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h      |   17 +
 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl   |  208 ++++
 arch/ppc/mach-mpc85xx/mp.c                        |  156 +++
 arch/ppc/mach-mpc85xx/speed.c                     |   97 ++
 include/linux/types.h                             |    2 +
 43 files changed, 3833 insertions(+), 18 deletions(-)
 create mode 100644 arch/ppc/cpu-85xx/Makefile
 create mode 100644 arch/ppc/cpu-85xx/cpu.c
 create mode 100644 arch/ppc/cpu-85xx/cpu_init.c
 create mode 100644 arch/ppc/cpu-85xx/fixed_ivor.S
 create mode 100644 arch/ppc/cpu-85xx/release.S
 create mode 100644 arch/ppc/cpu-85xx/resetvec.S
 create mode 100644 arch/ppc/cpu-85xx/start.S
 create mode 100644 arch/ppc/cpu-85xx/tlb.c
 create mode 100644 arch/ppc/cpu-85xx/traps.c
 create mode 100644 arch/ppc/include/asm/config.h
 create mode 100644 arch/ppc/include/asm/config_mpc85xx.h
 create mode 100644 arch/ppc/include/asm/e500.h
 create mode 100644 arch/ppc/include/asm/fsl_ddr_sdram.h
 create mode 100644 arch/ppc/include/asm/fsl_law.h
 create mode 100644 arch/ppc/include/asm/fsl_lbc.h
 create mode 100644 arch/ppc/include/asm/global_data.h
 create mode 100644 arch/ppc/lib/reloc.S
 create mode 100644 arch/ppc/lib/time-mpc85xx.c
 create mode 100644 arch/ppc/mach-mpc85xx/Kconfig
 create mode 100644 arch/ppc/mach-mpc85xx/Makefile
 create mode 100644 arch/ppc/mach-mpc85xx/cpuid.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_law.c
 create mode 100644 arch/ppc/mach-mpc85xx/fsl_lbc.c
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/clocks.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mp.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
 create mode 100644 arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
 create mode 100644 arch/ppc/mach-mpc85xx/mp.c
 create mode 100644 arch/ppc/mach-mpc85xx/speed.c

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index 164598f..d124065 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -12,9 +12,12 @@ choice
 config ARCH_MPC5XXX
 	bool "Freescale MPC5xxx"
 
+config ARCH_MPC85XX
+	bool "Freescale MPC85xx"
 endchoice
 
 source arch/ppc/mach-mpc5xxx/Kconfig
+source arch/ppc/mach-mpc85xx/Kconfig
 source common/Kconfig
 source commands/Kconfig
 source net/Kconfig
diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 2d9e47f..6ab1db1 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -7,9 +7,16 @@ ifdef CONFIG_RELOCATABLE
 CPPFLAGS += -fPIC -mrelocatable
 endif
 
+ifdef CONFIG_MPC85xx
+CPPFLAGS += -ffixed-r2 -Wa,-me500x2 -msoft-float -mno-string
+endif
 
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
+
 machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
+machine-$(CONFIG_ARCH_MPC85XX)			:= mpc85xx
+
+cpu-$(CONFIG_ARCH_MPC85XX)			:= 85xx
 
 TEXT_BASE = $(CONFIG_TEXT_BASE)
 
diff --git a/arch/ppc/cpu-85xx/Makefile b/arch/ppc/cpu-85xx/Makefile
new file mode 100644
index 0000000..be1ad21
--- /dev/null
+++ b/arch/ppc/cpu-85xx/Makefile
@@ -0,0 +1,7 @@
+obj-y 			+= cpu.o
+obj-y			+= cpu_init.o
+obj-y			+= traps.o
+obj-y			+= tlb.o
+extra-y			+= start.o
+extra-y			+= resetvec.o
+obj-$(CONFIG_MP)	+= release.o
diff --git a/arch/ppc/cpu-85xx/cpu.c b/arch/ppc/cpu-85xx/cpu.c
new file mode 100644
index 0000000..74eba0f
--- /dev/null
+++ b/arch/ppc/cpu-85xx/cpu.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc
+ * Copyright 2004,2007-2011 Freescale Semiconductor, Inc.
+ * (C) Copyright 2002, 2003 Motorola Inc.
+ * Xianghua Xiao (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/processor.h>
+#include <asm/config_mpc85xx.h>
+#include <asm/e500.h>
+#include <asm/common.h>
+#include <asm/config.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <mach/immap_85xx.h>
+#include <mach/clocks.h>
+
+void __noreturn reset_cpu(unsigned long addr)
+{
+	void __iomem *regs = (void __iomem *)MPC85xx_GUTS_ADDR;
+
+	/* Everything after the first generation of PQ3 parts has RSTCR */
+	out_be32(regs + MPC85xx_GUTS_RSTCR_OFFSET, 0x2);  /* HRESET_REQ */
+	udelay(100);
+
+	while (1)
+		;
+}
+
+unsigned long get_timebase_clock(void)
+{
+	struct sys_info sysinfo;
+
+	get_sys_info(&sysinfo);
+
+	return (sysinfo.freqSystemBus + 4UL)/8UL;
+}
+
+/*
+ * Return the memory size based on the configuration registers.
+ */
+phys_size_t get_effective_memsize(void)
+{
+	void __iomem *regs = (void __iomem *)(MPC85xx_DDR_ADDR);
+	phys_size_t sdram_size;
+	uint san , ean;
+	uint reg;
+	int ix;
+
+	sdram_size = 0;
+
+	for (ix = 0; ix < CFG_CHIP_SELECTS_PER_CTRL; ix++) {
+		if (in_be32(regs + DDR_OFF(CS0_CONFIG) + (ix * 8)) &
+				SDRAM_CFG_MEM_EN) {
+			reg = in_be32(regs + DDR_OFF(CS0_BNDS) + (ix * 8));
+			/* start address */
+			san = (reg & 0x0fff00000) >>  16;
+			/* end address   */
+			ean = (reg & 0x00000fff);
+			sdram_size =  ((ean - san + 1) << 24);
+		}
+	}
+
+	return sdram_size;
+}
+
+long int initdram(int board_type)
+{
+	phys_size_t dram_size = 0;
+
+	dram_size = fixed_sdram();
+
+	dram_size = setup_ddr_tlbs(dram_size / 0x100000);
+	dram_size *= 0x100000;
+
+	return dram_size;
+}
diff --git a/arch/ppc/cpu-85xx/cpu_init.c b/arch/ppc/cpu-85xx/cpu_init.c
new file mode 100644
index 0000000..e8c0a9e
--- /dev/null
+++ b/arch/ppc/cpu-85xx/cpu_init.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003 Motorola Inc.
+ * Modified by Xianghua Xiao, X.Xiao@motorola.com
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <init.h>
+#include <asm/processor.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void setup_ccsrbar(void)
+{
+	u32 temp;
+	u32 mas0, mas1, mas2, mas3, mas7;
+	u32 *ccsr_virt = (u32 *)(CFG_CCSRBAR + 0x1000);
+
+	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(1);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+	/* mas1 is the same as above */
+	mas2 = FSL_BOOKE_MAS2(CFG_CCSRBAR + 0x1000, MAS2_I|MAS2_G);
+	mas3 = FSL_BOOKE_MAS3(CFG_CCSRBAR_DEFAULT, 0, MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(CFG_CCSRBAR_DEFAULT);
+
+	write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	temp = in_be32(ccsr_virt);
+	out_be32(ccsr_virt, CFG_CCSRBAR_PHYS >> 12);
+	temp = in_be32((u32 *)CFG_CCSRBAR);
+}
+
+void cpu_init_early_f(void)
+{
+	u32 mas0, mas1, mas2, mas3, mas7;
+	int i;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (struct global_data *) (CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET);
+
+	/*
+	 * Clear initial global data.
+	 */
+	for (i = 0; i < sizeof(struct global_data); i++)
+		((char *)gd)[i] = 0;
+
+	mas0 = MAS0_TLBSEL(0) | MAS0_ESEL(0);
+	mas1 = MAS1_VALID | MAS1_TID(0) | MAS1_TS | MAS1_TSIZE(BOOKE_PAGESZ_4K);
+	mas2 = FSL_BOOKE_MAS2(CFG_CCSRBAR, MAS2_I|MAS2_G);
+	mas3 = FSL_BOOKE_MAS3(CFG_CCSRBAR_PHYS, 0, MAS3_SW|MAS3_SR);
+	mas7 = FSL_BOOKE_MAS7(CFG_CCSRBAR_PHYS);
+
+	write_tlb(mas0, mas1, mas2, mas3, mas7);
+
+	/* set up CCSR if we want it moved */
+	if (CFG_CCSRBAR_DEFAULT != CFG_CCSRBAR_PHYS)
+		setup_ccsrbar();
+
+	init_laws();
+	invalidate_tlb(0);
+	init_tlbs();
+}
+
+void cpu_init_f(void)
+{
+	disable_tlb(14);
+	disable_tlb(15);
+
+	init_early_memctl_regs();
+
+	init_used_tlb_cams();
+}
+
+int l2_cache_init(void)
+{
+	void __iomem *l2cache = (void __iomem *)MPC85xx_L2_ADDR;
+	uint cache_ctl;
+	uint svr, ver;
+	u32 l2siz_field;
+
+	svr = get_svr();
+	ver = SVR_SOC_VER(svr);
+
+	asm("msync;isync");
+	cache_ctl = in_be32(l2cache + MPC85xx_L2_CTL_OFFSET);
+
+	l2siz_field = (cache_ctl >> 28) & 0x3;
+
+	switch (l2siz_field) {
+	case 0x0:
+		return -1;
+		break;
+	case 0x1:
+		cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, L2SRAM=0 */
+		break;
+	case 0x2:
+		/* set L2E=1, L2I=1, & L2SRAM=0 */
+		cache_ctl = 0xc0000000;
+		break;
+	case 0x3:
+		/* set L2E=1, L2I=1, & L2SRAM=0 */
+		cache_ctl = 0xc0000000;
+		break;
+	}
+
+	if (!(in_be32(l2cache + MPC85xx_L2_CTL_OFFSET) & MPC85xx_L2CTL_L2E)) {
+		asm("msync;isync");
+		/* invalidate & enable */
+		out_be32(l2cache + MPC85xx_L2_CTL_OFFSET, cache_ctl);
+		asm("msync;isync");
+	}
+
+	return 0;
+}
diff --git a/arch/ppc/cpu-85xx/fixed_ivor.S b/arch/ppc/cpu-85xx/fixed_ivor.S
new file mode 100644
index 0000000..a00a435
--- /dev/null
+++ b/arch/ppc/cpu-85xx/fixed_ivor.S
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * Kumar Gala <kumar.gala@freescale.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/* This file is intended to be included by other asm code since
+ * we will want to execute this on both the primary core when
+ * it does a bootm and the secondary core's that get released
+ * out of the spin table.
+ */
+
+#define SET_IVOR(vector_number, vector_offset)	\
+	li	r3,vector_offset@l; 		\
+	mtspr	SPRN_IVOR##vector_number,r3;
+
+#define SET_GIVOR(vector_number, vector_offset)	\
+	li	r3,vector_offset@l; 		\
+	mtspr	SPRN_GIVOR##vector_number,r3;
+
+	SET_IVOR(0, 0x020) /* Critical Input */
+	SET_IVOR(1, 0x000) /* Machine Check */
+	SET_IVOR(2, 0x060) /* Data Storage */
+	SET_IVOR(3, 0x080) /* Instruction Storage */
+	SET_IVOR(4, 0x0a0) /* External Input */
+	SET_IVOR(5, 0x0c0) /* Alignment */
+	SET_IVOR(6, 0x0e0) /* Program */
+	SET_IVOR(7, 0x100) /* FP Unavailable */
+	SET_IVOR(8, 0x120) /* System Call */
+	SET_IVOR(9, 0x140) /* Auxiliary Processor Unavailable */
+	SET_IVOR(10, 0x160) /* Decrementer */
+	SET_IVOR(11, 0x180) /* Fixed Interval Timer */
+	SET_IVOR(12, 0x1a0) /* Watchdog Timer */
+	SET_IVOR(13, 0x1c0) /* Data TLB Error */
+	SET_IVOR(14, 0x1e0) /* Instruction TLB Error */
+	SET_IVOR(15, 0x040) /* Debug */
+
+	/* e500v1 & e500v2 only */
+	SET_IVOR(32, 0x200) /* SPE Unavailable */
+	SET_IVOR(33, 0x220) /* Embedded FP Data */
+	SET_IVOR(34, 0x240) /* Embedded FP Round */
+
+	SET_IVOR(35, 0x260) /* Performance monitor */
diff --git a/arch/ppc/cpu-85xx/release.S b/arch/ppc/cpu-85xx/release.S
new file mode 100644
index 0000000..4ddaca0
--- /dev/null
+++ b/arch/ppc/cpu-85xx/release.S
@@ -0,0 +1,265 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ * Kumar Gala <kumar.gala@freescale.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <asm/config_mpc85xx.h>
+#include <mach/mpc85xx.h>
+
+#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
+
+#include <mach/ppc_asm.tmpl>
+#include <asm/ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+/* To boot secondary cpus, we need a place for them to start up.
+ * Normally, they start at 0xfffffffc, but that's usually the
+ * firmware, and we don't want to have to run the firmware again.
+ * Instead, the primary cpu will set the BPTR to point here to
+ * this page.  We then set up the core, and head to
+ * start_secondary.  Note that this means that the code below
+ * must never exceed 1023 instructions (the branch at the end
+ * would then be the 1024th).
+ */
+	.globl	__secondary_start_page
+	.align	12
+__secondary_start_page:
+/* First do some preliminary setup */
+	lis	r3, HID0_EMCP@h		/* enable machine check */
+
+	ori	r3,r3,HID0_TBEN@l	/* enable Timebase */
+
+	mtspr	SPRN_HID0,r3
+
+	li	r3,(HID1_ASTME|HID1_ABE)@l	/* Addr streaming & broadcast */
+	mfspr   r0,PVR
+	andi.	r0,r0,0xff
+	cmpwi	r0,0x50@l	/* if we are rev 5.0 or greater set MBDD */
+	blt 1f
+	/* Set MBDD bit also */
+	ori r3, r3, HID1_MBDD@l
+1:
+	mtspr	SPRN_HID1,r3
+
+	/* Enable branch prediction */
+	lis	r3,BUCSR_ENABLE@h
+	ori	r3,r3,BUCSR_ENABLE@l
+	mtspr	SPRN_BUCSR,r3
+
+	/* Ensure TB is 0 */
+	li	r3,0
+	mttbl	r3
+	mttbu	r3
+
+	/* Enable/invalidate the I-Cache */
+	lis	r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
+	ori	r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
+	mtspr	SPRN_L1CSR1,r2
+1:
+	mfspr	r3,SPRN_L1CSR1
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR1_CPE|L1CSR1_ICE)@h
+	ori	r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
+	mtspr	SPRN_L1CSR1,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR1
+	andi.	r1,r3,L1CSR1_ICE@l
+	beq	2b
+
+	/* Enable/invalidate the D-Cache */
+	lis	r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
+	ori	r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
+	mtspr	SPRN_L1CSR0,r2
+1:
+	mfspr	r3,SPRN_L1CSR0
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR0_CPE|L1CSR0_DCE)@h
+	ori	r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
+	mtspr	SPRN_L1CSR0,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR0
+	andi.	r1,r3,L1CSR0_DCE@l
+	beq	2b
+
+#define toreset(x) (x - __secondary_start_page + 0xfffff000)
+
+	/* get our PIR to figure out our table entry */
+	lis	r3,toreset(__spin_table)@h
+	ori	r3,r3,toreset(__spin_table)@l
+
+	/* r10 has the base address for the entry */
+	mfspr	r0,SPRN_PIR
+	mr	r4,r0
+	slwi	r8,r4,5
+	add	r10,r3,r8
+
+#define EPAPR_MAGIC		(0x45504150)
+#define ENTRY_ADDR_UPPER	0
+#define ENTRY_ADDR_LOWER	4
+#define ENTRY_R3_UPPER		8
+#define ENTRY_R3_LOWER		12
+#define ENTRY_RESV		16
+#define ENTRY_PIR		20
+#define ENTRY_R6_UPPER		24
+#define ENTRY_R6_LOWER		28
+#define ENTRY_SIZE		32
+
+	/* setup the entry */
+	li	r3,0
+	li	r8,1
+	stw	r0,ENTRY_PIR(r10)
+	stw	r3,ENTRY_ADDR_UPPER(r10)
+	stw	r8,ENTRY_ADDR_LOWER(r10)
+	stw	r3,ENTRY_R3_UPPER(r10)
+	stw	r4,ENTRY_R3_LOWER(r10)
+	stw	r3,ENTRY_R6_UPPER(r10)
+	stw	r3,ENTRY_R6_LOWER(r10)
+
+	/* load r13 with the address of the 'bootpg' in SDRAM */
+	lis	r13,toreset(__bootpg_addr)@h
+	ori	r13,r13,toreset(__bootpg_addr)@l
+	lwz	r13,0(r13)
+
+	/* setup mapping for AS = 1, and jump there */
+	lis	r11,(MAS0_TLBSEL(1)|MAS0_ESEL(1))@h
+	mtspr	SPRN_MAS0,r11
+	lis	r11,(MAS1_VALID|MAS1_IPROT)@h
+	ori	r11,r11,(MAS1_TS|MAS1_TSIZE(BOOKE_PAGESZ_4K))@l
+	mtspr	SPRN_MAS1,r11
+	oris	r11,r13,(MAS2_I|MAS2_G)@h
+	ori	r11,r13,(MAS2_I|MAS2_G)@l
+	mtspr	SPRN_MAS2,r11
+	oris	r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@h
+	ori	r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@l
+	mtspr	SPRN_MAS3,r11
+	tlbwe
+
+	bl	1f
+1:	mflr	r11
+	/*
+	 * OR in 0xfff to create a mask of the bootpg SDRAM address.  We use
+	 * this mask to fixup the cpu spin table and the address that we want
+	 * to jump to, eg change them from 0xfffffxxx to 0x7ffffxxx if the
+	 * bootpg is at 0x7ffff000 in SDRAM.
+	 */
+	ori	r13,r13,0xfff
+	and	r11, r11, r13
+	and	r10, r10, r13
+
+	addi	r11,r11,(2f-1b)
+	mfmsr	r13
+	ori	r12,r13,MSR_IS|MSR_DS@l
+
+	mtspr	SPRN_SRR0,r11
+	mtspr	SPRN_SRR1,r12
+	rfi
+
+	/* spin waiting for addr */
+2:
+	lwz	r4,ENTRY_ADDR_LOWER(r10)
+	andi.	r11,r4,1
+	bne	2b
+	isync
+
+	/* setup IVORs to match fixed offsets */
+#include "fixed_ivor.S"
+
+	/* get the upper bits of the addr */
+	lwz	r11,ENTRY_ADDR_UPPER(r10)
+
+	/* setup branch addr */
+	mtspr	SPRN_SRR0,r4
+
+	/* mark the entry as released */
+	li	r8,3
+	stw	r8,ENTRY_ADDR_LOWER(r10)
+
+	/* mask by ~64M to setup our tlb we will jump to */
+	rlwinm	r12,r4,0,0,5
+
+	/* setup r3, r4, r5, r6, r7, r8, r9 */
+	lwz	r3,ENTRY_R3_LOWER(r10)
+	li	r4,0
+	li	r5,0
+	lwz	r6,ENTRY_R6_LOWER(r10)
+	lis	r7,(64*1024*1024)@h
+	li	r8,0
+	li	r9,0
+
+	/* load up the pir */
+	lwz	r0,ENTRY_PIR(r10)
+	mtspr	SPRN_PIR,r0
+	mfspr	r0,SPRN_PIR
+	stw	r0,ENTRY_PIR(r10)
+
+	mtspr	IVPR,r12
+/*
+ * Coming here, we know the cpu has one TLB mapping in TLB1[0]
+ * which maps 0xfffff000-0xffffffff one-to-one.  We set up a
+ * second mapping that maps addr 1:1 for 64M, and then we jump to
+ * addr
+ */
+	lis	r10,(MAS0_TLBSEL(1)|MAS0_ESEL(0))@h
+	mtspr	SPRN_MAS0,r10
+	lis	r10,(MAS1_VALID|MAS1_IPROT)@h
+	ori	r10,r10,(MAS1_TSIZE(BOOKE_PAGESZ_64M))@l
+	mtspr	SPRN_MAS1,r10
+	/* WIMGE = 0b00000 for now */
+	mtspr	SPRN_MAS2,r12
+	ori	r12,r12,(MAS3_SX|MAS3_SW|MAS3_SR)
+	mtspr	SPRN_MAS3,r12
+	tlbwe
+
+/* Now we have another mapping for this page, so we jump to that
+ * mapping
+ */
+	mtspr	SPRN_SRR1,r13
+	rfi
+
+	/*
+	 * Allocate some space for the SDRAM address of the bootpg.
+	 * This variable has to be in the boot page so that it can
+	 * be accessed by secondary cores when they come out of reset.
+	 */
+	.globl __bootpg_addr
+__bootpg_addr:
+	.long	0
+
+	.align L1_CACHE_SHIFT
+	.globl __spin_table
+__spin_table:
+	.space MAX_CPUS*ENTRY_SIZE
+
+	/* Fill in the empty space.  The actual reset vector is
+	 * the last word of the page */
+__secondary_start_code_end:
+	.space 4092 - (__secondary_start_code_end - __secondary_start_page)
+__secondary_reset_vector:
+	b	__secondary_start_page
diff --git a/arch/ppc/cpu-85xx/resetvec.S b/arch/ppc/cpu-85xx/resetvec.S
new file mode 100644
index 0000000..29555d4
--- /dev/null
+++ b/arch/ppc/cpu-85xx/resetvec.S
@@ -0,0 +1,2 @@
+	.section .resetvec,"ax"
+	b _start_e500
diff --git a/arch/ppc/cpu-85xx/start.S b/arch/ppc/cpu-85xx/start.S
new file mode 100644
index 0000000..491f196
--- /dev/null
+++ b/arch/ppc/cpu-85xx/start.S
@@ -0,0 +1,1097 @@
+/*
+ * Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2003  Motorola,Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * U-Boot Startup Code for Motorola 85xx PowerPC based Embedded Boards
+ *
+ * The processor starts at 0xfffffffc and the code is first executed in the
+ * last 4K page(0xfffff000-0xffffffff) in flash/rom.
+ */
+
+#include <config.h>
+#include <asm/config.h>
+#include <mach/mpc85xx.h>
+
+#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
+
+#include <asm/processor.h>
+#include <mach/ppc_asm.tmpl>
+#include <asm/ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#undef	MSR_KERNEL
+#define MSR_KERNEL ( MSR_ME )	/* Machine Check */
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r12 to access the GOT
+ */
+	START_GOT
+	GOT_ENTRY(_GOT2_TABLE_)
+	GOT_ENTRY(_FIXUP_TABLE_)
+
+	GOT_ENTRY(_start)
+	GOT_ENTRY(_start_of_vectors)
+	GOT_ENTRY(_end_of_vectors)
+	GOT_ENTRY(transfer_to_handler)
+	GOT_ENTRY(__init_end)
+	GOT_ENTRY(_end)
+	GOT_ENTRY(__bss_start)
+	END_GOT
+
+/*
+ * e500 Startup -- after reset only the last 4KB of the effective
+ * address space is mapped in the MMU L2 TLB1 Entry0. The .bootpg
+ * section is located at THIS LAST page and basically does three
+ * things: clear some registers, set up exception tables and
+ * add more TLB entries for 'larger spaces'(e.g. the boot rom) to
+ * continue the boot procedure.
+ * Once the boot rom is mapped by TLB entries we can proceed
+ * with normal startup.
+ */
+
+	.section .bootpg,"ax"
+	.globl _start_e500
+
+_start_e500:
+
+/* clear registers/arrays not reset by hardware */
+
+	/* L1 */
+	li	r0,2
+	mtspr	L1CSR0,r0	/* invalidate d-cache */
+	mtspr	L1CSR1,r0	/* invalidate i-cache */
+
+	mfspr	r1,DBSR
+	mtspr	DBSR,r1		/* Clear all valid bits */
+
+	/* Enable/invalidate the I-Cache */
+	lis	r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@h
+	ori	r2,r2,(L1CSR1_ICFI|L1CSR1_ICLFR)@l
+	mtspr	SPRN_L1CSR1,r2
+1:
+	mfspr	r3,SPRN_L1CSR1
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR1_CPE|L1CSR1_ICE)@h
+	ori	r3,r3,(L1CSR1_CPE|L1CSR1_ICE)@l
+	mtspr	SPRN_L1CSR1,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR1
+	andi.	r1,r3,L1CSR1_ICE@l
+	beq	2b
+
+	/* Enable/invalidate the D-Cache */
+	lis	r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@h
+	ori	r2,r2,(L1CSR0_DCFI|L1CSR0_DCLFR)@l
+	mtspr	SPRN_L1CSR0,r2
+1:
+	mfspr	r3,SPRN_L1CSR0
+	and.	r1,r3,r2
+	bne	1b
+
+	lis	r3,(L1CSR0_CPE|L1CSR0_DCE)@h
+	ori	r3,r3,(L1CSR0_CPE|L1CSR0_DCE)@l
+	mtspr	SPRN_L1CSR0,r3
+	isync
+2:
+	mfspr	r3,SPRN_L1CSR0
+	andi.	r1,r3,L1CSR0_DCE@l
+	beq	2b
+
+	/* Setup interrupt vectors */
+	lis	r1,TEXT_BASE@h
+	mtspr	IVPR,r1
+
+	li	r1,0x0100
+	mtspr	IVOR0,r1	/* 0: Critical input */
+	li	r1,0x0200
+	mtspr	IVOR1,r1	/* 1: Machine check */
+	li	r1,0x0300
+	mtspr	IVOR2,r1	/* 2: Data storage */
+	li	r1,0x0400
+	mtspr	IVOR3,r1	/* 3: Instruction storage */
+	li	r1,0x0500
+	mtspr	IVOR4,r1	/* 4: External interrupt */
+	li	r1,0x0600
+	mtspr	IVOR5,r1	/* 5: Alignment */
+	li	r1,0x0700
+	mtspr	IVOR6,r1	/* 6: Program check */
+	li	r1,0x0800
+	mtspr	IVOR7,r1	/* 7: floating point unavailable */
+	li	r1,0x0900
+	mtspr	IVOR8,r1	/* 8: System call */
+	/* 9: Auxiliary processor unavailable(unsupported) */
+	li	r1,0x0a00
+	mtspr	IVOR10,r1	/* 10: Decrementer */
+	li	r1,0x0b00
+	mtspr	IVOR11,r1	/* 11: Interval timer */
+	li	r1,0x0c00
+	mtspr	IVOR12,r1	/* 12: Watchdog timer */
+	li	r1,0x0d00
+	mtspr	IVOR13,r1	/* 13: Data TLB error */
+	li	r1,0x0e00
+	mtspr	IVOR14,r1	/* 14: Instruction TLB error */
+	li	r1,0x0f00
+	mtspr	IVOR15,r1	/* 15: Debug */
+
+	/* Clear and set up some registers. */
+	li      r0,0x0000
+	lis	r1,0xffff
+	mtspr	DEC,r0			/* prevent dec exceptions */
+	mttbl	r0			/* prevent fit & wdt exceptions */
+	mttbu	r0
+	mtspr	TSR,r1			/* clear all timer exception status */
+	mtspr	TCR,r0			/* disable all */
+	mtspr	ESR,r0			/* clear exception syndrome register */
+	mtspr	MCSR,r0			/* machine check syndrome register */
+	mtxer	r0			/* clear integer exception register */
+
+	/* Enable Time Base and Select Time Base Clock */
+	lis	r0,HID0_EMCP@h		/* Enable machine check */
+	ori	r0,r0,HID0_TBEN@l	/* Enable Timebase */
+	mtspr	HID0,r0
+
+	li	r0,(HID1_ASTME|HID1_ABE)@l	/* Addr streaming & broadcast */
+	mfspr	r3,PVR
+	andi.	r3,r3, 0xff
+	cmpwi	r3,0x50@l	/* if we are rev 5.0 or greater set MBDD */
+	blt 1f
+	/* Set MBDD bit also */
+	ori r0, r0, HID1_MBDD@l
+1:
+	mtspr	HID1,r0
+
+	/* Enable Branch Prediction */
+#if defined(CFG_BTB)
+	lis	r0,BUCSR_ENABLE@h
+	ori	r0,r0,BUCSR_ENABLE@l
+	mtspr	SPRN_BUCSR,r0
+#endif
+
+	lis     r6,FSL_BOOKE_MAS0(1, 15, 0)@h
+	ori     r6,r6,FSL_BOOKE_MAS0(1, 15, 0)@l
+
+	/* create a temp mapping in AS=1 to the 4M boot window */
+	lis     r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@h
+	ori     r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_4M)@l
+
+	lis     r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@h
+	ori     r8,r8,FSL_BOOKE_MAS2(TEXT_BASE & 0xffc00000, (MAS2_I|MAS2_G))@l
+
+	/* The 85xx has the default boot window 0xff800000 - 0xffffffff */
+	lis     r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@h
+	ori     r9,r9,FSL_BOOKE_MAS3(0xffc00000, 0, (MAS3_SX|MAS3_SW|MAS3_SR))@l
+
+	mtspr   MAS0,r6
+	mtspr   MAS1,r7
+	mtspr   MAS2,r8
+	mtspr   MAS3,r9
+	isync
+	msync
+	tlbwe
+
+	/* create a temp mapping in AS=1 to the stack */
+	lis     r6,FSL_BOOKE_MAS0(1, 14, 0)@h
+	ori     r6,r6,FSL_BOOKE_MAS0(1, 14, 0)@l
+
+	lis     r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@h
+	ori     r7,r7,FSL_BOOKE_MAS1(1, 1, 0, 1, BOOKE_PAGESZ_16K)@l
+
+	lis     r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@h
+	ori     r8,r8,FSL_BOOKE_MAS2(CFG_INIT_RAM_ADDR, 0)@l
+
+	lis     r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
+                                  (MAS3_SX|MAS3_SW|MAS3_SR))@h
+	ori     r9,r9,FSL_BOOKE_MAS3(CFG_INIT_RAM_ADDR, 0,
+                                     (MAS3_SX|MAS3_SW|MAS3_SR))@l
+
+	mtspr   MAS0,r6
+	mtspr   MAS1,r7
+	mtspr   MAS2,r8
+	mtspr   MAS3,r9
+	isync
+	msync
+	tlbwe
+
+	lis	r6,MSR_IS|MSR_DS@h
+	ori	r6,r6,MSR_IS|MSR_DS@l
+	lis	r7,switch_as@h
+	ori	r7,r7,switch_as@l
+
+	mtspr	SPRN_SRR0,r7
+	mtspr	SPRN_SRR1,r6
+	rfi
+
+switch_as:
+/* L1 DCache is used for initial RAM */
+
+	/* Allocate initial RAM in data cache.  */
+	lis	r3,CFG_INIT_RAM_ADDR@h
+	ori	r3,r3,CFG_INIT_RAM_ADDR@l
+	mfspr	r2, L1CFG0
+	andi.	r2, r2, 0x1ff
+	/* cache size * 1024 / (2 * L1 line size) */
+	slwi	r2, r2, (10 - 1 - L1_CACHE_SHIFT)
+	mtctr	r2
+	li	r0,0
+1:
+	dcbz	r0,r3
+	dcbtls	0,r0,r3
+	addi	r3,r3,CACHELINE_SIZE
+	bdnz	1b
+
+	/*
+	 * Jump out the last 4K page and continue to 'normal' start.
+	 * Calculate absolute address in FLASH and jump there.
+	 */
+	lis	r3,TEXT_BASE@h
+	ori	r3,r3,TEXT_BASE@l
+	addi	r3,r3,_start_cont - _start + _START_OFFSET
+	mtlr	r3
+	blr
+
+	.text
+	.globl	_start
+_start:
+	.long	0x62626F78		/* Barebox Magic Number */
+
+	.align	4
+	.globl	_start_cont
+_start_cont:
+	/* Setup the stack in initial RAM,could be L2-as-SRAM or L1 dcache */
+	lis	r1,CFG_INIT_RAM_ADDR@h
+	ori	r1,r1,CFG_INIT_SP_OFFSET@l
+
+	li	r0,0
+	stwu	r0,-4(r1)
+	stwu	r0,-4(r1)		/* Terminate call chain */
+
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	lis	r0,RESET_VECTOR@h	/* Address of reset vector */
+	ori	r0,r0,RESET_VECTOR@l
+	stwu	r1,-8(r1)		/* Save back chain and move SP */
+	stw	r0,+12(r1)		/* Save return addr (underflow vect) */
+
+	GET_GOT
+	bl	cpu_init_early_f
+
+	/* switch back to AS = 0 */
+	lis	r3,(MSR_CE|MSR_ME|MSR_DE)@h
+	ori	r3,r3,(MSR_CE|MSR_ME|MSR_DE)@l
+	mtmsr	r3
+	isync
+
+	bl      cpu_init_f
+	bl      initdram
+	b       relocate_code
+	isync
+
+	/* NOTREACHED - board_init_f() does not return */
+
+	. = EXC_OFF_SYS_RESET
+	.globl	_start_of_vectors
+_start_of_vectors:
+
+/* Critical input. */
+	CRIT_EXCEPTION(0x0100, CriticalInput, CritcalInputException)
+
+/* Machine check */
+	MCK_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+	STD_EXCEPTION(0x0300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+	STD_EXCEPTION(0x0400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+#ifdef CFG_USE_IRQ
+	STD_EXCEPTION(0x0500, ExtInterrupt, ExtIntException)
+#endif
+
+/* Alignment exception. */
+	. = 0x0600
+Alignment:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	mfspr	r4,DAR
+	stw	r4,_DAR(r21)
+	mfspr	r5,DSISR
+	stw	r5,_DSISR(r21)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE)
+
+/* Program check exception */
+	. = 0x0700
+ProgramCheck:
+	EXCEPTION_PROLOG(SRR0, SRR1)
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException,
+		MSR_KERNEL, COPY_EE)
+
+	/* No FPU on MPC85xx.  This exception is not supposed to happen.
+	*/
+	STD_EXCEPTION(0x0800, FPUnavailable, UnknownException)
+
+	. = 0x0900
+/*
+ * r0 - SYSCALL number
+ * r3-... arguments
+ */
+SystemCall:
+	addis	r11,r0,0	/* get functions table addr */
+	ori	r11,r11,0	/* Note: this code is patched in trap_init */
+	addis	r12,r0,0	/* get number of functions */
+	ori	r12,r12,0
+
+	cmplw	0,r0,r12
+	bge	1f
+
+	rlwinm	r0,r0,2,0,31	/* fn_addr = fn_tbl[r0] */
+	add	r11,r11,r0
+	lwz	r11,0(r11)
+
+	li	r20,0xd00-4	/* Get stack pointer */
+	lwz	r12,0(r20)
+	subi	r12,r12,12	/* Adjust stack pointer */
+	li	r0,0xc00+_end_back-SystemCall
+	cmplw	0,r0,r12	/* Check stack overflow */
+	bgt	1f
+	stw	r12,0(r20)
+
+	mflr	r0
+	stw	r0,0(r12)
+	mfspr	r0,SRR0
+	stw	r0,4(r12)
+	mfspr	r0,SRR1
+	stw	r0,8(r12)
+
+	li	r12,0xc00+_back-SystemCall
+	mtlr	r12
+	mtspr	SRR0,r11
+
+1:	SYNC
+	rfi
+_back:
+
+	mfmsr	r11			/* Disable interrupts */
+	li	r12,0
+	ori	r12,r12,MSR_EE
+	andc	r11,r11,r12
+	SYNC				/* Some chip revs need this... */
+	mtmsr	r11
+	SYNC
+
+	li	r12,0xd00-4		/* restore regs */
+	lwz	r12,0(r12)
+
+	lwz	r11,0(r12)
+	mtlr	r11
+	lwz	r11,4(r12)
+	mtspr	SRR0,r11
+	lwz	r11,8(r12)
+	mtspr	SRR1,r11
+
+	addi	r12,r12,12		/* Adjust stack pointer */
+	li	r20,0xd00-4
+	stw	r12,0(r20)
+
+	SYNC
+	rfi
+_end_back:
+
+	STD_EXCEPTION(0x0a00, Decrementer, UnknownException)
+	STD_EXCEPTION(0x0b00, IntervalTimer, UnknownException)
+	STD_EXCEPTION(0x0c00, WatchdogTimer, UnknownException)
+
+	STD_EXCEPTION(0x0d00, DataTLBError, UnknownException)
+	STD_EXCEPTION(0x0e00, InstructionTLBError, UnknownException)
+
+	CRIT_EXCEPTION(0x0f00, DebugBreakpoint, DebugException )
+
+	.globl	_end_of_vectors
+_end_of_vectors:
+
+
+	. = . + (0x100 - ( . & 0xff ))	/* align for debug */
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+	.globl	transfer_to_handler
+transfer_to_handler:
+	stw	r22,_NIP(r21)
+	lis	r22,MSR_POW@h
+	andc	r23,r23,r22
+	stw	r23,_MSR(r21)
+	SAVE_GPR(7, r21)
+	SAVE_4GPRS(8, r21)
+	SAVE_8GPRS(12, r21)
+	SAVE_8GPRS(24, r21)
+
+	mflr	r23
+	andi.	r24,r23,0x3f00		/* get vector offset  */
+	stw	r24,TRAP(r21)
+	li	r22,0
+	stw	r22,RESULT(r21)
+	mtspr	SPRG2,r22		/* r1 is now kernel sp */
+
+	lwz	r24,0(r23)		/* virtual address of handler 	*/
+	lwz	r23,4(r23)		/* where to go when done 	*/
+	mtspr	SRR0,r24
+	mtspr	SRR1,r20
+	mtlr	r23
+	SYNC
+	rfi				/* jump to handler, enable MMU  */
+
+int_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SRR0,r2
+	mtspr	SRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfi
+
+crit_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SPRN_CSRR0,r2
+	mtspr	SPRN_CSRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfci
+
+mck_return:
+	mfmsr	r28		/* Disable interrupts */
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r28,r28,r4
+	SYNC			/* Some chip revs need this... */
+	mtmsr	r28
+	SYNC
+	lwz	r2,_CTR(r1)
+	lwz	r0,_LINK(r1)
+	mtctr	r2
+	mtlr	r0
+	lwz	r2,_XER(r1)
+	lwz	r0,_CCR(r1)
+	mtspr	XER,r2
+	mtcrf	0xFF,r0
+	REST_10GPRS(3, r1)
+	REST_10GPRS(13, r1)
+	REST_8GPRS(23, r1)
+	REST_GPR(31, r1)
+	lwz	r2,_NIP(r1)	/* Restore environment */
+	lwz	r0,_MSR(r1)
+	mtspr	SPRN_MCSRR0,r2
+	mtspr	SPRN_MCSRR1,r0
+	lwz	r0,GPR0(r1)
+	lwz	r2,GPR2(r1)
+	lwz	r1,GPR1(r1)
+	SYNC
+	rfmci
+
+/*
+ * Cache functions.
+ */
+.globl invalidate_icache
+invalidate_icache:
+	mfspr	r0,L1CSR1
+	ori	r0,r0,L1CSR1_ICFI
+	msync
+	isync
+	mtspr	L1CSR1,r0
+	isync
+	blr				/* entire I cache */
+
+.globl invalidate_dcache
+invalidate_dcache:
+	mfspr	r0,L1CSR0
+	ori	r0,r0,L1CSR0_DCFI
+	msync
+	isync
+	mtspr	L1CSR0,r0
+	isync
+	blr
+
+	.globl	icache_enable
+icache_enable:
+	mflr	r8
+	bl	invalidate_icache
+	mtlr	r8
+	isync
+	mfspr	r4,L1CSR1
+	ori	r4,r4,0x0001
+	oris	r4,r4,0x0001
+	mtspr	L1CSR1,r4
+	isync
+	blr
+
+	.globl	icache_disable
+icache_disable:
+	mfspr	r0,L1CSR1
+	lis	r3,0
+	ori	r3,r3,L1CSR1_ICE
+	andc	r0,r0,r3
+	mtspr	L1CSR1,r0
+	isync
+	blr
+
+	.globl	icache_status
+icache_status:
+	mfspr	r3,L1CSR1
+	andi.	r3,r3,L1CSR1_ICE
+	blr
+
+	.globl	dcache_enable
+dcache_enable:
+	mflr	r8
+	bl	invalidate_dcache
+	mtlr	r8
+	isync
+	mfspr	r0,L1CSR0
+	ori	r0,r0,0x0001
+	oris	r0,r0,0x0001
+	msync
+	isync
+	mtspr	L1CSR0,r0
+	isync
+	blr
+
+	.globl	dcache_disable
+dcache_disable:
+	mfspr	r3,L1CSR0
+	lis	r4,0
+	ori	r4,r4,L1CSR0_DCE
+	andc	r3,r3,r4
+	mtspr	L1CSR0,r3
+	isync
+	blr
+
+	.globl	dcache_status
+dcache_status:
+	mfspr	r3,L1CSR0
+	andi.	r3,r3,L1CSR0_DCE
+	blr
+
+	.globl get_pir
+get_pir:
+	mfspr	r3,PIR
+	blr
+
+	.globl get_pvr
+get_pvr:
+	mfspr	r3,PVR
+	blr
+
+	.globl get_svr
+get_svr:
+	mfspr	r3,SVR
+	blr
+
+	.globl wr_tcr
+wr_tcr:
+	mtspr	TCR,r3
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in8
+ * Description:	 Input 8 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in8
+in8:
+	lbz	r3,0x0000(r3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out8
+ * Description:	 Output 8 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out8
+out8:
+	stb	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out16
+ * Description:	 Output 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out16
+out16:
+	sth	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out16r
+ * Description:	 Byte reverse and output 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out16r
+out16r:
+	sthbrx	r4,r0,r3
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out32
+ * Description:	 Output 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out32
+out32:
+	stw	r4,0x0000(r3)
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 out32r
+ * Description:	 Byte reverse and output 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	out32r
+out32r:
+	stwbrx	r4,r0,r3
+	sync
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in16
+ * Description:	 Input 16 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in16
+in16:
+	lhz	r3,0x0000(r3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in16r
+ * Description:	 Input 16 bits and byte reverse
+ *--------------------------------------------------------------------------- */
+	.globl	in16r
+in16r:
+	lhbrx	r3,r0,r3
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in32
+ * Description:	 Input 32 bits
+ *--------------------------------------------------------------------------- */
+	.globl	in32
+in32:
+	lwz	3,0x0000(3)
+	blr
+
+/*---------------------------------------------------------------------------
+ * Function:	 in32r
+ * Description:	 Input 32 bits and byte reverse
+ *--------------------------------------------------------------------------- */
+	.globl	in32r
+in32r:
+	lwbrx	r3,r0,r3
+	blr
+
+/*
+ * void write_tlb(mas0, mas1, mas2, mas3, mas7)
+ */
+	.globl	write_tlb
+write_tlb:
+	mtspr	MAS0,r3
+	mtspr	MAS1,r4
+	mtspr	MAS2,r5
+	mtspr	MAS3,r6
+	li	r3,0
+	isync
+	tlbwe
+	msync
+	isync
+	blr
+
+/*
+ * void relocate_code (end of ram)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+	.globl	relocate_code
+relocate_code:
+	mr	r9, r3			/* Save end of RAM 	*/
+
+	lis	r10, (_end - _start)@h	/* Size			*/
+	ori	r10, r10, (_end - _start)@l
+	sub	r3,  r3, r10
+
+	/* 64KB aligned */
+	lis	r10, 0xffff0000@h
+	ori	r10, r10, 0xffff0000@l
+	and	r3, r3, r10
+
+	mr	r1, r3		/* Set new stack just below barebox code */
+	mr	r10, r3 	/* Save copy of Destination Address */
+
+	bl 	calc_source
+calc_source:
+	mfspr	r4, LR	/* r4 = address in memory (flash, RAM) */
+	subi	r4, r4, (calc_source - _start)
+
+	GET_GOT
+	lis	r5, __init_size@h
+	ori	r5, r5, __init_size@l
+
+	li	r6,CACHELINE_SIZE		/* Cache Line Size	*/
+
+	/*
+	 * Fix GOT pointer:
+	 *
+	 * New GOT-PTR = (old GOT-PTR - TEXT_BASE) + Destination Address
+	 *
+	 * Offset:
+	 */
+	sub	r15,r10,r4
+
+	/* First our own GOT */
+	add	r12,r12,r15
+	/*add	r14,r14,r15 */
+	/* then the one used by the C code */
+	add	r30,r30,r15
+
+	/*
+	 * Now relocate code
+	 */
+
+	cmplw	cr1,r3,r4
+	addi	r0,r5,3
+	srwi.	r0,r0,2
+	beq	cr1,4f		/* In place copy is not necessary	*/
+	beq	7f		/* Protect against 0 count		*/
+	mtctr	r0
+	bge	cr1,2f
+
+	la	r8,-4(r4)
+	la	r7,-4(r3)
+1:	lwzu	r0,4(r8)
+	stwu	r0,4(r7)
+	bdnz	1b
+	b	4f
+
+2:	slwi	r0,r0,2
+	add	r8,r4,r0
+	add	r7,r3,r0
+3:	lwzu	r0,-4(r8)
+	stwu	r0,-4(r7)
+	bdnz	3b
+
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4:	cmpwi	r6,0
+	add	r5,r3,r5
+	beq	7f		/* Always flush prefetch queue in any case */
+	subi	r0,r6,1
+	andc	r3,r3,r0
+	mr	r4,r3
+5:	dcbst	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	5b
+	sync			/* Wait for all dcbst to complete on bus */
+	mr	r4,r3
+6:	icbi	0,r4
+	add	r4,r4,r6
+	cmplw	r4,r5
+	blt	6b
+7:	sync			/* Wait for all icbi to complete on bus */
+	isync
+
+	/*
+	 * Re-point the IVPR at RAM
+	 */
+	mtspr	IVPR,r10
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+
+	addi	r0,r10,in_ram - _start + _START_OFFSET
+	mtlr	r0
+	blr				/* NEVER RETURNS! */
+
+	.globl	in_ram
+in_ram:
+
+	/*
+	 * Relocation Function, r12 point to got2+0x8000
+	 *
+	 * Adjust got2 pointers, no need to check for 0, this code
+	 * already puts a few entries in the table.
+	 */
+	li	r0,__got2_entries@sectoff@l
+	la	r3,GOT(_GOT2_TABLE_)
+	lwz	r11,GOT(_GOT2_TABLE_)
+	mtctr	r0
+	sub	r11,r3,r11
+	addi	r3,r3,-4
+1:	lwzu	r0,4(r3)
+	cmpwi	r0,0
+	beq-	2f
+	add	r0,r0,r11
+	stw	r0,0(r3)
+2:	bdnz	1b
+
+	/*
+	 * Now adjust the fixups and the pointers to the fixups
+	 * in case we need to move ourselves again.
+	 */
+	li	r0,__fixup_entries@sectoff@l
+	lwz	r3,GOT(_FIXUP_TABLE_)
+	cmpwi	r0,0
+	mtctr	r0
+	addi	r3,r3,-4
+	beq	4f
+3:	lwzu	r4,4(r3)
+	lwzux	r0,r4,r11
+	cmpwi	r0,0
+	add	r0,r0,r11
+	stw	r4,0(r3)
+	beq-	5f
+	stw	r0,0(r4)
+5:	bdnz	3b
+4:
+clear_bss:
+	/*
+	 * Now clear BSS segment
+	 */
+	lwz	r3,GOT(__bss_start)
+	lwz	r4,GOT(_end)
+
+	cmplw	0,r3,r4
+	beq	6f
+
+	li	r0,0
+5:
+	stw	r0,0(r3)
+	addi	r3,r3,4
+	cmplw	0,r3,r4
+	bne	5b
+6:
+
+	mr 	r3, r10		/* Destination Address      */
+	bl 	board_init_r
+
+	/*
+	 * Copy exception vector code to low memory
+	 *
+	 * r3: dest_addr
+	 * r7: source address, r8: end address, r9: target address
+	 */
+	.globl	trap_init
+trap_init:
+	mflr	r4			/* save link register		*/
+	GET_GOT
+	lwz	r7,GOT(_start_of_vectors)
+	lwz	r8,GOT(_end_of_vectors)
+
+	li	r9,0x100		/* reset vector always at 0x100 */
+
+	cmplw	0,r7,r8
+	bgelr				/* return if r7>=r8 - just in case */
+1:
+	lwz	r0,0(r7)
+	stw	r0,0(r9)
+	addi	r7,r7,4
+	addi	r9,r9,4
+	cmplw	0,r7,r8
+	bne	1b
+
+	/*
+	 * relocate `hdlr' and `int_return' entries
+	 */
+	li	r7,.L_CriticalInput - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_MachineCheck - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_DataStorage - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_InstStorage - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_Alignment - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_ProgramCheck - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_FPUnavailable - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_Decrementer - _start + _START_OFFSET
+	bl	trap_reloc
+	li	r7,.L_IntervalTimer - _start + _START_OFFSET
+	li	r8,_end_of_vectors - _start + _START_OFFSET
+2:
+	bl	trap_reloc
+	addi	r7,r7,0x100		/* next exception vector	*/
+	cmplw	0,r7,r8
+	blt	2b
+
+	lis	r7,0x0
+	mtspr	IVPR,r7
+
+	mtlr	r4			/* restore link register	*/
+	blr
+
+
+.globl _text_base
+_text_base:
+	.long TEXT_BASE
+
+.globl unlock_ram_in_cache
+unlock_ram_in_cache:
+	/* invalidate the INIT_RAM section */
+	lis	r3,(CFG_INIT_RAM_ADDR & ~(CACHELINE_SIZE-1))@h
+	ori	r3,r3,(CFG_INIT_RAM_ADDR & ~(CACHELINE_SIZE-1))@l
+	mfspr	r4,L1CFG0
+	andi.	r4,r4,0x1ff
+	slwi	r4,r4,(10 - 1 - L1_CACHE_SHIFT)
+	mtctr	r4
+1:	dcbi	r0,r3
+	addi	r3,r3,CACHELINE_SIZE
+	bdnz	1b
+	sync
+
+	/* Invalidate the TLB entries for the cache */
+	lis	r3,CFG_INIT_RAM_ADDR@h
+	ori	r3,r3,CFG_INIT_RAM_ADDR@l
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	addi	r3,r3,0x1000
+	tlbivax	0,r3
+	isync
+	blr
+
+.globl flush_dcache
+flush_dcache:
+	mfspr	r3,SPRN_L1CFG0
+
+	rlwinm	r5,r3,9,3	/* Extract cache block size */
+	twlgti	r5,1		/* Only 32 and 64 byte cache blocks
+				 * are currently defined.
+				 */
+	li	r4,32
+	subfic	r6,r5,2		/* r6 = log2(1KiB / cache block size) -
+				 *      log2(number of ways)
+				 */
+	slw	r5,r4,r5	/* r5 = cache block size */
+
+	rlwinm	r7,r3,0,0xff	/* Extract number of KiB in the cache */
+	mulli	r7,r7,13	/* An 8-way cache will require 13
+				 * loads per set.
+				 */
+	slw	r7,r7,r6
+
+	/* save off HID0 and set DCFA */
+	mfspr	r8,SPRN_HID0
+	ori	r9,r8,HID0_DCFA@l
+	mtspr	SPRN_HID0,r9
+	isync
+
+	lis	r4,0
+	mtctr	r7
+
+1:	lwz	r3,0(r4)	/* Load... */
+	add	r4,r4,r5
+	bdnz	1b
+
+	msync
+	lis	r4,0
+	mtctr	r7
+
+1:	dcbf	0,r4		/* ...and flush. */
+	add	r4,r4,r5
+	bdnz	1b
+
+	/* restore HID0 */
+	mtspr	SPRN_HID0,r8
+	isync
+
+	blr
+
+.globl setup_ivors
+setup_ivors:
+
+#include "fixed_ivor.S"
+	blr
diff --git a/arch/ppc/cpu-85xx/tlb.c b/arch/ppc/cpu-85xx/tlb.c
new file mode 100644
index 0000000..6f22424
--- /dev/null
+++ b/arch/ppc/cpu-85xx/tlb.c
@@ -0,0 +1,228 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <asm/global_data.h>
+#include <asm/mmu.h>
+#include <asm/bitops.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void invalidate_tlb(u8 tlb)
+{
+	if (tlb == 0)
+		mtspr(MMUCSR0, 0x4);
+	if (tlb == 1)
+		mtspr(MMUCSR0, 0x2);
+}
+
+void init_tlbs(void)
+{
+	int i;
+
+	for (i = 0; i < num_tlb_entries; i++) {
+		write_tlb(tlb_table[i].mas0,
+			  tlb_table[i].mas1,
+			  tlb_table[i].mas2,
+			  tlb_table[i].mas3,
+			  tlb_table[i].mas7);
+	}
+
+	return ;
+}
+
+static inline void use_tlb_cam(u8 idx)
+{
+	int i = idx / 32;
+	int bit = idx % 32;
+
+	gd->used_tlb_cams[i] |= (1 << bit);
+}
+
+static inline void free_tlb_cam(u8 idx)
+{
+	int i = idx / 32;
+	int bit = idx % 32;
+
+	gd->used_tlb_cams[i] &= ~(1 << bit);
+}
+
+void init_used_tlb_cams(void)
+{
+	int i;
+	unsigned int num_cam = mfspr(SPRN_TLB1CFG) & 0xfff;
+
+	for (i = 0; i < ((NUM_TLBCAMS+31)/32); i++)
+		gd->used_tlb_cams[i] = 0;
+
+	/* walk all the entries */
+	for (i = 0; i < num_cam; i++) {
+		mtspr(MAS0, FSL_BOOKE_MAS0(1, i, 0));
+		asm volatile("tlbre;isync");
+		if (mfspr(MAS1) & MAS1_VALID)
+			use_tlb_cam(i);
+	}
+}
+
+static int find_free_tlbcam(void)
+{
+	int i;
+	u32 idx;
+
+	for (i = 0; i < ((NUM_TLBCAMS+31)/32); i++) {
+		idx = ffz(gd->used_tlb_cams[i]);
+
+		if (idx != 32)
+			break;
+	}
+
+	idx += i * 32;
+
+	if (idx >= NUM_TLBCAMS)
+		return -1;
+
+	return idx;
+}
+
+void set_tlb(u8 tlb, u32 epn, u64 rpn,
+	     u8 perms, u8 wimge,
+	     u8 ts, u8 esel, u8 tsize, u8 iprot)
+{
+	u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+
+	if (tlb == 1)
+		use_tlb_cam(esel);
+
+	_mas0 = FSL_BOOKE_MAS0(tlb, esel, 0);
+	_mas1 = FSL_BOOKE_MAS1(1, iprot, 0, ts, tsize);
+	_mas2 = FSL_BOOKE_MAS2(epn, wimge);
+	_mas3 = FSL_BOOKE_MAS3(rpn, 0, perms);
+	_mas7 = FSL_BOOKE_MAS7(rpn);
+
+	write_tlb(_mas0, _mas1, _mas2, _mas3, _mas7);
+
+}
+
+void disable_tlb(u8 esel)
+{
+	u32 _mas0, _mas1, _mas2, _mas3, _mas7;
+
+	free_tlb_cam(esel);
+
+	_mas0 = FSL_BOOKE_MAS0(1, esel, 0);
+	_mas1 = 0;
+	_mas2 = 0;
+	_mas3 = 0;
+	_mas7 = 0;
+
+	mtspr(MAS0, _mas0);
+	mtspr(MAS1, _mas1);
+	mtspr(MAS2, _mas2);
+	mtspr(MAS3, _mas3);
+	asm volatile("isync;msync;tlbwe;isync");
+}
+
+static void tlbsx(const unsigned *addr)
+{
+	__asm__ __volatile__ ("tlbsx 0,%0" : : "r" (addr), "m" (*addr));
+}
+
+/* return -1 if we didn't find anything */
+int find_tlb_idx(void *addr, u8 tlbsel)
+{
+	u32 _mas0, _mas1;
+
+	/* zero out Search PID, AS */
+	mtspr(MAS6, 0);
+
+	tlbsx(addr);
+
+	_mas0 = mfspr(MAS0);
+	_mas1 = mfspr(MAS1);
+
+	/* we found something, and its in the TLB we expect */
+	if ((MAS1_VALID & _mas1) &&
+		(MAS0_TLBSEL(tlbsel) == (_mas0 & MAS0_TLBSEL_MSK))) {
+		return (_mas0 & MAS0_ESEL_MSK) >> 16;
+	}
+
+	return -1;
+}
+
+static unsigned int setup_ddr_tlbs_phys(phys_addr_t p_addr,
+					unsigned int memsize_in_meg)
+{
+	int i;
+	unsigned int tlb_size;
+	unsigned int wimge = 0;
+	unsigned int ram_tlb_address = (unsigned int)CFG_SDRAM_BASE;
+	unsigned int max_cam = (mfspr(SPRN_TLB1CFG) >> 16) & 0xf;
+	u64 size, memsize = (u64)memsize_in_meg << 20;
+
+	size = min((u64)memsize, (u64)MAX_MEM_MAPPED);
+
+	/* Convert (4^max) kB to (2^max) bytes */
+	max_cam = max_cam * 2 + 10;
+
+	for (i = 0; size && i < 8; i++) {
+		int ram_tlb_index = find_free_tlbcam();
+		u32 camsize = __ilog2_u64(size) & ~1U;
+		u32 align = __ilog2(ram_tlb_address) & ~1U;
+
+		if (ram_tlb_index == -1)
+			break;
+
+		if (align == -2)
+			align = max_cam;
+		if (camsize > align)
+			camsize = align;
+
+		if (camsize > max_cam)
+			camsize = max_cam;
+
+		tlb_size = (camsize - 10) / 2;
+
+		set_tlb(1, ram_tlb_address, p_addr,
+			MAS3_SX|MAS3_SW|MAS3_SR, wimge,
+			0, ram_tlb_index, tlb_size, 1);
+
+		size -= 1ULL << camsize;
+		memsize -= 1ULL << camsize;
+		ram_tlb_address += 1UL << camsize;
+		p_addr += 1UL << camsize;
+	}
+
+	if (memsize)
+		printf("%lld left unmapped\n", memsize);
+	return memsize_in_meg;
+}
+
+unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg)
+{
+	return setup_ddr_tlbs_phys(CFG_SDRAM_BASE, memsize_in_meg);
+}
diff --git a/arch/ppc/cpu-85xx/traps.c b/arch/ppc/cpu-85xx/traps.c
new file mode 100644
index 0000000..952ef10
--- /dev/null
+++ b/arch/ppc/cpu-85xx/traps.c
@@ -0,0 +1,300 @@
+/*
+ * linux/arch/powerpc/kernel/traps.c
+ *
+ * Copyright 2007 Freescale Semiconductor.
+ * Copyright (C) 2003 Motorola
+ * Modified by Xianghua Xiao(x.xiao@motorola.com)
+ *
+ * Copyright (C) 1995-1996  Gary Thomas (gdt@linuxppc.org)
+ *
+ * Modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware exceptions
+ */
+
+#include <common.h>
+#include <command.h>
+#include <init.h>
+#include <kgdb.h>
+#include <asm/processor.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/global_data.h>
+#include <mach/immap_85xx.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+int machinecheck_count;
+int machinecheck_error;
+
+/*
+ * End of addressable memory.
+ */
+#define END_OF_MEM (get_effective_memsize())
+
+static inline void set_tsr(unsigned long val)
+{
+	asm volatile("mtspr 0x150, %0" : : "r" (val));
+}
+
+static inline unsigned long get_esr(void)
+{
+	unsigned long val;
+	asm volatile("mfspr %0, 0x03e" : "=r" (val) : );
+	return val;
+}
+
+#define ESR_MCI 0x80000000
+#define ESR_PIL 0x08000000
+#define ESR_PPR 0x04000000
+#define ESR_PTR 0x02000000
+#define ESR_DST 0x00800000
+#define ESR_DIZ 0x00400000
+#define ESR_U0F 0x00008000
+
+/*
+ * Trap & Exception support
+ */
+void print_backtrace(unsigned long *sp)
+{
+	int cnt = 0;
+	unsigned long i;
+
+	printf("Call backtrace: ");
+	while (sp) {
+		if ((uint)sp > END_OF_MEM)
+			break;
+
+		i = sp[1];
+		if (cnt++ % 7 == 0)
+			printf("\n");
+		printf("%08lX ", i);
+		if (cnt > 32)
+			break;
+		sp = (unsigned long *)*sp;
+	}
+	printf("\n");
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	int i;
+
+	printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx "
+		"DAR: %08lX\n",
+	       regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+	printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x "
+		"IR/DR: %01x%01x\n",
+	       regs->msr, regs->msr&MSR_EE ? 1 : 0, regs->msr&MSR_PR ? 1 : 0,
+	       regs->msr & MSR_FP ? 1 : 0, regs->msr&MSR_ME ? 1 : 0,
+	       regs->msr&MSR_IR ? 1 : 0,
+	       regs->msr&MSR_DR ? 1 : 0);
+
+	printf("\n");
+	for (i = 0;  i < 32;  i++) {
+		if ((i % 8) == 0)
+			printf("GPR%02d: ", i);
+
+		printf("%08lX ", regs->gpr[i]);
+		if ((i % 8) == 7)
+			printf("\n");
+	}
+}
+
+void _exception(int signr, struct pt_regs *regs)
+{
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Exception in kernel pc %lx signal %d", regs->nip, signr);
+}
+
+void CritcalInputException(struct pt_regs *regs)
+{
+	panic("Critical Input Exception");
+}
+
+static int exception_init(void)
+{
+	machinecheck_count = 0;
+	machinecheck_error = 0;
+
+	return 0;
+}
+core_initcall(exception_init);
+
+void MachineCheckException(struct pt_regs *regs)
+{
+	unsigned long fixup;
+	unsigned int mcsr, mcsrr0, mcsrr1, mcar;
+
+	/*
+	 * Probing PCI using config cycles cause this exception
+	 * when a device is not present.  Catch it and return to
+	 * the PCI exception handler.
+	 */
+	fixup = search_exception_table(regs->nip);
+	if (fixup != 0) {
+		regs->nip = fixup;
+		return;
+	}
+
+	mcsrr0 = mfspr(SPRN_MCSRR0);
+	mcsrr1 = mfspr(SPRN_MCSRR1);
+	mcsr = mfspr(SPRN_MCSR);
+	mcar = mfspr(SPRN_MCAR);
+
+	machinecheck_count++;
+	machinecheck_error = 1;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	printf("Machine check in kernel mode.\n");
+	printf("Caused by (from mcsr): ");
+	printf("mcsr = 0x%08x\n", mcsr);
+	if (mcsr & 0x80000000)
+		printf("Machine check input pin\n");
+	if (mcsr & 0x40000000)
+		printf("Instruction cache parity error\n");
+	if (mcsr & 0x20000000)
+		printf("Data cache push parity error\n");
+	if (mcsr & 0x10000000)
+		printf("Data cache parity error\n");
+	if (mcsr & 0x00000080)
+		printf("Bus instruction address error\n");
+	if (mcsr & 0x00000040)
+		printf("Bus Read address error\n");
+	if (mcsr & 0x00000020)
+		printf("Bus Write address error\n");
+	if (mcsr & 0x00000010)
+		printf("Bus Instruction data bus error\n");
+	if (mcsr & 0x00000008)
+		printf("Bus Read data bus error\n");
+	if (mcsr & 0x00000004)
+		printf("Bus Write bus error\n");
+	if (mcsr & 0x00000002)
+		printf("Bus Instruction parity error\n");
+	if (mcsr & 0x00000001)
+		printf("Bus Read parity error\n");
+
+	show_regs(regs);
+	printf("MCSR=0x%08x\tMCSRR0=0x%08x\nMCSRR1=0x%08x\tMCAR=0x%08x\n",
+		mcsr, mcsrr0, mcsrr1, mcar);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	if (machinecheck_count > 10)
+		panic("machine check count too high\n");
+
+	if (machinecheck_count > 1) {
+		regs->nip += 4; /* skip offending instruction */
+		printf("Skipping current instr, Returning to 0x%08lx\n",
+		       regs->nip);
+	} else {
+		printf("Returning back to 0x%08lx\n", regs->nip);
+	}
+}
+
+void AlignmentException(struct pt_regs *regs)
+{
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Alignment Exception");
+}
+
+void ProgramCheckException(struct pt_regs *regs)
+{
+	long esr_val;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	show_regs(regs);
+
+	esr_val = get_esr();
+	if (esr_val & ESR_PIL)
+		printf("** Illegal Instruction **\n");
+	else if (esr_val & ESR_PPR)
+		printf("** Privileged Instruction **\n");
+	else if (esr_val & ESR_PTR)
+		printf("** Trap Instruction **\n");
+
+	print_backtrace((unsigned long *)regs->gpr[1]);
+	panic("Program Check Exception");
+}
+
+void PITException(struct pt_regs *regs)
+{
+	/* Reset PIT interrupt */
+	set_tsr(0x0c000000);
+
+}
+
+void UnknownException(struct pt_regs *regs)
+{
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+
+	printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+	       regs->nip, regs->msr, regs->trap);
+	_exception(0, regs);
+}
+
+void ExtIntException(struct pt_regs *regs)
+{
+	void __iomem *pic = (void __iomem *)(MPC8xxx_PIC_ADDR);
+
+	uint vect;
+
+#if defined(CONFIG_KGDB)
+	if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+		return;
+#endif
+	printf("External Interrupt Exception at PC: %lx, SR: %lx, vector=%lx",
+	       regs->nip, regs->msr, regs->trap);
+	vect = in_be32(pic + MPC85xx_PIC_IACK0_OFFSET);
+	printf(" irq IACK0@%05x=%d\n", (int)(pic + MPC85xx_PIC_IACK0_OFFSET),
+		vect);
+	show_regs(regs);
+	print_backtrace((unsigned long *)regs->gpr[1]);
+}
+
+void DebugException(struct pt_regs *regs)
+{
+	printf("Debugger trap at @ %lx\n", regs->nip);
+	show_regs(regs);
+#if defined(CONFIG_BEDBUG)
+	do_bedbug_breakpoint(regs);
+#endif
+}
diff --git a/arch/ppc/include/asm/bitops.h b/arch/ppc/include/asm/bitops.h
index 8048232..3b31d54 100644
--- a/arch/ppc/include/asm/bitops.h
+++ b/arch/ppc/include/asm/bitops.h
@@ -166,6 +166,48 @@ extern __inline__ int ffz(unsigned int x)
 	return __ilog2(x & -x);
 }
 
+/*
+ * fls: find last (most-significant) bit set.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(unsigned int x)
+{
+	int lz;
+
+	asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
+	return 32 - lz;
+}
+
+/*
+ * fls64 - find last set bit in a 64-bit word
+ * @x: the word to search
+ *
+ * This is defined in a similar way as the libc and compiler builtin
+ * ffsll, but returns the position of the most significant set bit.
+ *
+ * fls64(value) returns 0 if value is 0 or the position of the last
+ * set bit if value is nonzero. The last (most significant) bit is
+ * at position 64.
+ */
+
+static inline int fls64(__u64 x)
+{
+	__u32 h = x >> 32;
+	if (h)
+		return fls(h) + 32;
+	return fls(x);
+}
+
+static inline int __ilog2_u64(u64 n)
+{
+	return fls64(n) - 1;
+}
+
+static inline int ffs64(u64 x)
+{
+	return __ilog2_u64(x & -x) + 1ull;
+}
+
 #ifdef __KERNEL__
 
 /*
diff --git a/arch/ppc/include/asm/cache.h b/arch/ppc/include/asm/cache.h
index 4f7ca86..147ceb6 100644
--- a/arch/ppc/include/asm/cache.h
+++ b/arch/ppc/include/asm/cache.h
@@ -31,6 +31,8 @@
 extern void flush_dcache_range(unsigned long start, unsigned long stop);
 extern void clean_dcache_range(unsigned long start, unsigned long stop);
 extern void invalidate_dcache_range(unsigned long start, unsigned long stop);
+extern void flush_dcache(void);
+extern void invalidate_icache(void);
 #ifdef CFG_INIT_RAM_LOCK
 extern void unlock_ram_in_cache(void);
 #endif /* CFG_INIT_RAM_LOCK */
diff --git a/arch/ppc/include/asm/common.h b/arch/ppc/include/asm/common.h
index 045817b..689ec23 100644
--- a/arch/ppc/include/asm/common.h
+++ b/arch/ppc/include/asm/common.h
@@ -31,5 +31,6 @@ static inline unsigned long get_pc(void)
 	return pc;
 }
 
+int l2_cache_init(void);
 extern unsigned long search_exception_table(unsigned long);
 #endif /* __ASM_COMMON_H */
diff --git a/arch/ppc/include/asm/config.h b/arch/ppc/include/asm/config.h
new file mode 100644
index 0000000..9c4458b
--- /dev/null
+++ b/arch/ppc/include/asm/config.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_CONFIG_H_
+#define _ASM_CONFIG_H_
+
+#ifdef CONFIG_MPC85xx
+#include <asm/config_mpc85xx.h>
+#endif
+
+#ifndef MAX_MEM_MAPPED
+#if defined(CONFIG_E500)
+#define MAX_MEM_MAPPED	((phys_size_t)(2 << 30))
+#endif
+#endif
+
+/*
+ * Provide a default boot page translation virtual address that lines up with
+ * Freescale's default e500 reset page.
+ */
+#if (defined(CONFIG_E500) && defined(CONFIG_MP))
+#ifndef BPTR_VIRT_ADDR
+#define BPTR_VIRT_ADDR	0xfffff000
+#endif
+#endif
+
+#endif /* _ASM_CONFIG_H_ */
diff --git a/arch/ppc/include/asm/config_mpc85xx.h b/arch/ppc/include/asm/config_mpc85xx.h
new file mode 100644
index 0000000..5da4f2f
--- /dev/null
+++ b/arch/ppc/include/asm/config_mpc85xx.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_MPC85xx_CONFIG_H_
+#define _ASM_MPC85xx_CONFIG_H_
+
+/* Number of TLB CAM entries we have on FSL Book-E chips */
+#if defined(CONFIG_E500)
+#define NUM_TLBCAMS	16
+#endif
+
+#if defined(CONFIG_P2020)
+#define MAX_CPUS	2
+#define FSL_NUM_LAWS	12
+#define FSL_SEC_COMPAT	2
+#else
+#error Processor type not defined for this platform
+#endif
+
+#endif /* _ASM_MPC85xx_CONFIG_H_ */
diff --git a/arch/ppc/include/asm/e500.h b/arch/ppc/include/asm/e500.h
new file mode 100644
index 0000000..36aa5a8
--- /dev/null
+++ b/arch/ppc/include/asm/e500.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2003 Motorola,Inc.
+ * Xianghua Xiao(x.xiao@motorola.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__E500_H__
+#define __E500_H__
+
+#ifndef __ASSEMBLY__
+#include <asm/config_mpc85xx.h>
+
+struct sys_info {
+	unsigned long freqProcessor[MAX_CPUS];
+	unsigned long freqSystemBus;
+	unsigned long freqDDRBus;
+	unsigned long freqLocalBus;
+};
+
+#endif  /* _ASMLANGUAGE */
+
+#define RESET_VECTOR	0xfffffffc
+
+#endif	/* __E500_H__ */
diff --git a/arch/ppc/include/asm/fsl_ddr_sdram.h b/arch/ppc/include/asm/fsl_ddr_sdram.h
new file mode 100644
index 0000000..5de2d72
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_ddr_sdram.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef FSL_DDR_MEMCTL_H
+#define FSL_DDR_MEMCTL_H
+
+/*
+ * DDR_SDRAM_CFG - DDR SDRAM Control Configuration
+ */
+#define SDRAM_CFG_MEM_EN		0x80000000
+#define SDRAM_CFG_SREN			0x40000000
+#define SDRAM_CFG_ECC_EN		0x20000000
+#define SDRAM_CFG_RD_EN			0x10000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR1	0x02000000
+#define SDRAM_CFG_SDRAM_TYPE_DDR2	0x03000000
+#define SDRAM_CFG_SDRAM_TYPE_MASK	0x07000000
+#define SDRAM_CFG_SDRAM_TYPE_SHIFT	24
+#define SDRAM_CFG_DYN_PWR		0x00200000
+#define SDRAM_CFG_32_BE			0x00080000
+#define SDRAM_CFG_8_BE			0x00040000
+#define SDRAM_CFG_NCAP			0x00020000
+#define SDRAM_CFG_2T_EN			0x00008000
+#define SDRAM_CFG_BI			0x00000001
+
+extern phys_size_t get_effective_memsize(void);
+extern phys_size_t fixed_sdram(void);
+
+#endif
diff --git a/arch/ppc/include/asm/fsl_i2c.h b/arch/ppc/include/asm/fsl_i2c.h
index 4f71341..b219d0b 100644
--- a/arch/ppc/include/asm/fsl_i2c.h
+++ b/arch/ppc/include/asm/fsl_i2c.h
@@ -36,13 +36,13 @@ typedef struct fsl_i2c {
 
 	u8 adr;		/* I2C slave address */
 	u8 res0[3];
-#define I2C_ADR		0xFE
+#define I2C_ADR		0xfe
 #define I2C_ADR_SHIFT	1
 #define I2C_ADR_RES	~(I2C_ADR)
 
 	u8 fdr;		/* I2C frequency divider register */
 	u8 res1[3];
-#define IC2_FDR		0x3F
+#define IC2_FDR		0x3f
 #define IC2_FDR_SHIFT	0
 #define IC2_FDR_RES	~(IC2_FDR)
 
@@ -69,18 +69,18 @@ typedef struct fsl_i2c {
 
 	u8 dr;		/* I2C data register */
 	u8 res4[3];
-#define I2C_DR		0xFF
+#define I2C_DR		0xff
 #define I2C_DR_SHIFT	0
 #define I2C_DR_RES	~(I2C_DR)
 
 	u8 dfsrr;	/* I2C digital filter sampling rate register */
 	u8 res5[3];
-#define I2C_DFSRR	0x3F
+#define I2C_DFSRR	0x3f
 #define I2C_DFSRR_SHIFT	0
 #define I2C_DFSRR_RES	~(I2C_DR)
 
 	/* Fill out the reserved block */
-	u8 res6[0xE8];
+	u8 res6[0xe8];
 } fsl_i2c_t;
 
 #endif	/* _ASM_I2C_H_ */
diff --git a/arch/ppc/include/asm/fsl_law.h b/arch/ppc/include/asm/fsl_law.h
new file mode 100644
index 0000000..14f29e5
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_law.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#ifndef _FSL_LAW_H_
+#define _FSL_LAW_H_
+
+#include <asm/io.h>
+
+#define LAW_EN	0x80000000
+
+#define SET_LAW_ENTRY(idx, a, sz, trgt) \
+	{ .index = idx, .addr = a, .size = sz, .trgt_id = trgt }
+
+#define SET_LAW(a, sz, trgt) \
+	{ .index = -1, .addr = a, .size = sz, .trgt_id = trgt }
+
+enum law_size {
+	LAW_SIZE_4K = 0xb,
+	LAW_SIZE_8K,
+	LAW_SIZE_16K,
+	LAW_SIZE_32K,
+	LAW_SIZE_64K,
+	LAW_SIZE_128K,
+	LAW_SIZE_256K,
+	LAW_SIZE_512K,
+	LAW_SIZE_1M,
+	LAW_SIZE_2M,
+	LAW_SIZE_4M,
+	LAW_SIZE_8M,
+	LAW_SIZE_16M,
+	LAW_SIZE_32M,
+	LAW_SIZE_64M,
+	LAW_SIZE_128M,
+	LAW_SIZE_256M,
+	LAW_SIZE_512M,
+	LAW_SIZE_1G,
+	LAW_SIZE_2G,
+	LAW_SIZE_4G,
+	LAW_SIZE_8G,
+	LAW_SIZE_16G,
+	LAW_SIZE_32G,
+};
+
+#define law_size_bits(sz)	(__ilog2_u64(sz) - 1)
+#define lawar_size(x)	(1ULL << (((x) & 0x3f) + 1))
+
+enum law_trgt_if {
+	LAW_TRGT_IF_PCI = 0x00,
+	LAW_TRGT_IF_PCI_2 = 0x01,
+	LAW_TRGT_IF_PCIE_1 = 0x02,
+#if !defined(CONFIG_P2020)
+	LAW_TRGT_IF_PCIE_3 = 0x03,
+#endif
+	LAW_TRGT_IF_LBC = 0x04,
+	LAW_TRGT_IF_CCSR = 0x08,
+	LAW_TRGT_IF_DDR_INTRLV = 0x0b,
+	LAW_TRGT_IF_RIO = 0x0c,
+	LAW_TRGT_IF_RIO_2 = 0x0d,
+	LAW_TRGT_IF_DDR = 0x0f,
+	LAW_TRGT_IF_DDR_2 = 0x16,	/* 2nd controller */
+};
+#define LAW_TRGT_IF_DDR_1	LAW_TRGT_IF_DDR
+#define LAW_TRGT_IF_PCI_1	LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIX	LAW_TRGT_IF_PCI
+#define LAW_TRGT_IF_PCIE_2	LAW_TRGT_IF_PCI_2
+#define LAW_TRGT_IF_RIO_1	LAW_TRGT_IF_RIO
+
+
+#if defined(CONFIG_P2020)
+#define LAW_TRGT_IF_PCIE_3	LAW_TRGT_IF_PCI
+#endif
+
+struct law_entry {
+	int index;
+	phys_addr_t addr;
+	enum law_size size;
+	enum law_trgt_if trgt_id;
+};
+
+extern int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id);
+extern void init_laws(void);
+
+/* define in board code */
+extern struct law_entry law_table[];
+extern int num_law_entries;
+#endif
diff --git a/arch/ppc/include/asm/fsl_lbc.h b/arch/ppc/include/asm/fsl_lbc.h
new file mode 100644
index 0000000..8c6b08a
--- /dev/null
+++ b/arch/ppc/include/asm/fsl_lbc.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright (C) 2004-2008,2010-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#ifndef __ASM_PPC_FSL_LBC_H
+#define __ASM_PPC_FSL_LBC_H
+
+#include <config.h>
+#include <common.h>
+
+/*
+ * BR - Base Registers
+ */
+#define BR_PS				0x00001800
+#define BR_PS_SHIFT			11
+#define BR_PS_8				0x00000800	/* Port Size 8 bit */
+#define BR_PS_16			0x00001000	/* Port Size 16 bit */
+#define BR_PS_32			0x00001800	/* Port Size 32 bit */
+#define BR_V				0x00000001
+#define BR_V_SHIFT			0
+
+/* Convert an address into the right format for the BR registers */
+#define BR_PHYS_ADDR(x) ((x) & 0xffff8000)
+
+/* helpers to convert values into an OR address mask (GPCM mode) */
+#if 0
+#define P2SZ_TO_AM(s)	((~((s) - 1)) & 0xffff8000)	/* must be pow of 2 */
+#define MEG_TO_AM(m)	P2SZ_TO_AM((m) << 20)
+#endif
+
+/*
+ * CLKDIV is five bits only on 8536, 8572, and 8610, so far, but the fifth bit
+ * should always be zero on older parts that have a four bit CLKDIV.
+ */
+#define LCRR_CLKDIV			0x0000001f
+#define LCRR_CLKDIV_SHIFT		0
+#define LCRR_CLKDIV_4			0x00000002
+#define LCRR_CLKDIV_8			0x00000004
+#define LCRR_CLKDIV_16			0x00000008
+
+#ifndef __ASSEMBLY__
+#include <asm/io.h>
+
+extern void init_early_memctl_regs(void);
+
+/* LBC register offsets. */
+#define FSL_LBC_BRX(x)	((x) * 8)	/* bank register offsets.  */
+#define FSL_LBC_ORX(x)	(4 + ((x) * 8)) /* option register offset. */
+#define FSL_LBC_LCCR	0x0d4		/* Clock ration register. */
+
+#define LBC_BASE_ADDR ((void __iomem *)LBC_ADDR)
+#define get_lbc_br(x) (in_be32((LBC_BASE_ADDR + FSL_LBC_BRX(x))))
+#define get_lbc_or(x) (in_be32((LBC_BASE_ADDR + FSL_LBC_ORX(x))))
+#define set_lbc_br(x, v) (out_be32((LBC_BASE_ADDR + FSL_LBC_BRX(x)), v))
+#define set_lbc_or(x, v) (out_be32((LBC_BASE_ADDR + FSL_LBC_ORX(x)), v))
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_PPC_FSL_LBC_H */
diff --git a/arch/ppc/include/asm/global_data.h b/arch/ppc/include/asm/global_data.h
new file mode 100644
index 0000000..8c1a975
--- /dev/null
+++ b/arch/ppc/include/asm/global_data.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * (C) Copyright 2002-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef	__ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+
+#include "config.h"
+#include "asm/types.h"
+
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (some locked parts of the data cache)
+ * to allow for a minimum set of global variables during system initialization
+ * (until we have set * up the memory controller so that we can use RAM).
+ */
+
+struct	global_data {
+	unsigned long	flags;
+	unsigned long	baudrate;
+	unsigned long	cpu_clk;	/* CPU clock in Hz! */
+	unsigned long	bus_clk;
+	unsigned long	mem_clk;
+	u32 lbc_clk;
+	void *cpu;
+	u32 i2c1_clk;
+	u32 i2c2_clk;
+	u32 used_laws;
+	u32 used_tlb_cams[(NUM_TLBCAMS+31)/32];
+	phys_size_t	ram_size;
+	unsigned long	board_type;
+};
+
+#define DECLARE_GLOBAL_DATA_PTR		register struct global_data \
+					*gd asm ("r2")
+#endif /* __ASM_GBL_DATA_H */
diff --git a/arch/ppc/include/asm/io.h b/arch/ppc/include/asm/io.h
index 052ae15..13187ca 100644
--- a/arch/ppc/include/asm/io.h
+++ b/arch/ppc/include/asm/io.h
@@ -176,6 +176,26 @@ extern inline void out_be32(volatile unsigned *addr, int val)
     __asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
 }
 
+/*
+ * Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single call. These macros can
+ * also be used to set a multiple-bit bit pattern using a mask, by
+ * specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+#define clrbits(type, addr, clear) \
+	out_##type((addr), in_##type(addr) & ~(clear))
+
+#define setbits(type, addr, set) \
+	out_##type((addr), in_##type(addr) | (set))
+
+#define clrsetbits(type, addr, clear, set) \
+	out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
+
+#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
+#define setbits_be32(addr, set) setbits(be32, addr, set)
+#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
+
 /* these ones were originally in config.h */
 unsigned char	in8(unsigned int);
 void		out8(unsigned int, unsigned char);
diff --git a/arch/ppc/include/asm/mmu.h b/arch/ppc/include/asm/mmu.h
index 1667041..bba5ab5 100644
--- a/arch/ppc/include/asm/mmu.h
+++ b/arch/ppc/include/asm/mmu.h
@@ -372,15 +372,17 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
  * e500 support
  */
 
-#define MAS0_TLBSEL     0x10000000
-#define MAS0_ESEL       0x000F0000
-#define MAS0_NV         0x00000001
+#define MAS0_TLBSEL_MSK 0x30000000
+#define MAS0_TLBSEL(x)  (((x) << 28) & MAS0_TLBSEL_MSK)
+#define MAS0_ESEL_MSK   0x0FFF0000
+#define MAS0_ESEL(x)    (((x) << 16) & MAS0_ESEL_MSK)
+#define MAS0_NV(x)      ((x) & 0x00000FFF)
 
 #define MAS1_VALID      0x80000000
 #define MAS1_IPROT      0x40000000
-#define MAS1_TID        0x00FF0000
+#define MAS1_TID(x)     (((x) << 16) & 0x3FFF0000)
 #define MAS1_TS         0x00001000
-#define MAS1_TSIZE   	0x00000F00
+#define MAS1_TSIZE(x)   (((x) << 8) & 0x00000F00)
 
 #define MAS2_EPN        0xFFFFF000
 #define MAS2_SHAREN     0x00000200
@@ -404,10 +406,10 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define MAS3_UR         0x00000002
 #define MAS3_SR         0x00000001
 
-#define MAS4_TLBSELD    0x10000000
-#define MAS4_TIDDSEL    0x00030000
+#define MAS4_TLBSELD(x) MAS0_TLBSEL(x)
+#define MAS4_TIDDSEL    0x000F0000
+#define MAS4_TSIZED(x)  MAS1_TSIZE(x)
 #define MAS4_DSHAREN    0x00001000
-#define MAS4_TSIZED(x)  (x << 8)
 #define MAS4_X0D        0x00000040
 #define MAS4_X1D        0x00000020
 #define MAS4_WD         0x00000010
@@ -419,6 +421,23 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define MAS6_SPID       0x00FF0000
 #define MAS6_SAS        0x00000001
 
+#define MAS7_RPN	0xFFFFFFFF
+
+#define FSL_BOOKE_MAS0(tlbsel, esel, nv) \
+		(MAS0_TLBSEL(tlbsel) | MAS0_ESEL(esel) | MAS0_NV(nv))
+#define FSL_BOOKE_MAS1(v, iprot, tid, ts, tsize) \
+		((((v) << 31) & MAS1_VALID)             |\
+		(((iprot) << 30) & MAS1_IPROT)          |\
+		(MAS1_TID(tid))				|\
+		(((ts) << 12) & MAS1_TS)                |\
+		(MAS1_TSIZE(tsize)))
+#define FSL_BOOKE_MAS2(epn, wimge) \
+		(((epn) & MAS3_RPN) | (wimge))
+#define FSL_BOOKE_MAS3(rpn, user, perms) \
+		(((rpn) & MAS3_RPN) | (user) | (perms))
+#define FSL_BOOKE_MAS7(rpn) \
+		(((u64)(rpn)) >> 32)
+
 #define BOOKE_PAGESZ_1K         0
 #define BOOKE_PAGESZ_4K         1
 #define BOOKE_PAGESZ_16K        2
@@ -436,6 +455,40 @@ extern int write_bat(ppc_bat_t bat, unsigned long upper, unsigned long lower);
 #define LAWBAR_BASE_ADDR	0x00FFFFFF
 #define LAWAR_TRGT_IF		0x01F00000
 #else
+#ifdef CONFIG_E500
+#ifndef __ASSEMBLY__
+extern void set_tlb(u8 tlb, u32 epn, u64 rpn,
+		u8 perms, u8 wimge,
+		u8 ts, u8 esel, u8 tsize, u8 iprot);
+extern void disable_tlb(u8 esel);
+extern void invalidate_tlb(u8 tlb);
+extern void init_tlbs(void);
+extern int find_tlb_idx(void *addr, u8 tlbsel);
+extern void init_used_tlb_cams(void);
+
+extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg);
+extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7);
+
+#define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz,\
+			_iprot) \
+	{ .mas0 = FSL_BOOKE_MAS0(_tlb, _esel, 0), \
+	  .mas1 = FSL_BOOKE_MAS1(1, _iprot, 0, _ts, _sz), \
+	  .mas2 = FSL_BOOKE_MAS2(_epn, _wimge), \
+	  .mas3 = FSL_BOOKE_MAS3(_rpn, 0, _perms), \
+	  .mas7 = FSL_BOOKE_MAS7(_rpn), }
+
+struct fsl_e_tlb_entry {
+	u32	mas0;
+	u32	mas1;
+	u32	mas2;
+	u32	mas3;
+	u32	mas7;
+};
+extern struct fsl_e_tlb_entry tlb_table[];
+extern int num_tlb_entries;
+#endif
+#endif
+
 #define LAWBAR_BASE_ADDR	0x000FFFFF
 #define LAWAR_TRGT_IF		0x00F00000
 #endif
diff --git a/arch/ppc/include/asm/processor.h b/arch/ppc/include/asm/processor.h
index 9c6f79a..29e0622 100644
--- a/arch/ppc/include/asm/processor.h
+++ b/arch/ppc/include/asm/processor.h
@@ -217,6 +217,7 @@
 #define   HID0_DPM	(1<<20)
 #define   HID0_ICE	(1<<HID0_ICE_SHIFT)	/* Instruction Cache Enable */
 #define   HID0_DCE	(1<<HID0_DCE_SHIFT)	/* Data Cache Enable */
+#define   HID0_TBEN	(1<<14)		/* Time Base Enable */
 #define   HID0_ILOCK	(1<<13)		/* Instruction Cache Lock */
 #define   HID0_DLOCK	(1<<HID0_DLOCK_SHIFT)	/* Data Cache Lock */
 #define   HID0_ICFI	(1<<11)		/* Instr. Cache Flash Invalidate */
@@ -231,6 +232,10 @@
 #define   HID0_BHTE	(1<<2)		/* Branch History Table Enable */
 #define   HID0_BTCD	(1<<1)		/* Branch target cache disable */
 #define SPRN_HID1	0x3F1	/* Hardware Implementation Register 1 */
+#define   HID1_RFXE     (1<<17)		/* Read Fault Exception Enable */
+#define   HID1_ASTME    (1<<13)		/* Address bus streaming mode */
+#define   HID1_ABE      (1<<12)		/* Address broadcast enable */
+#define   HID1_MBDD     (1<<6)		/* optimized sync instruction */
 #define SPRN_IABR	0x3F2	/* Instruction Address Breakpoint Register */
 #ifndef CONFIG_BOOKE
 #define SPRN_IAC1	0x3F4	/* Instruction Address Compare 1 */
@@ -410,13 +415,20 @@
 #define SPRN_IVOR15	0x19f	/* Interrupt Vector Offset Register 15 */
 
 /* e500 definitions */
+#define SPRN_L1CFG0     0x203   /* L1 Cache Configuration Register 0 */
 #define SPRN_L1CSR0     0x3f2   /* L1 Cache Control and Status Register 0 */
+#define   L1CSR0_CPE            0x00010000      /* Data Cache Parity Enable */
+#define   L1CSR0_DCLFR          0x00000100      /* D-Cache Lock Flash Reset */
 #define   L1CSR0_DCFI           0x00000002      /* Data Cache Flash Invalidate */
 #define   L1CSR0_DCE            0x00000001      /* Data Cache Enable */
 #define SPRN_L1CSR1     0x3f3   /* L1 Cache Control and Status Register 1 */
+#define   L1CSR1_CPE           0x00010000       /* I-Cache Parity Enable */
+#define   L1CSR1_ICLFR          0x00000100      /* I-Cache Lock Flash Reset */
 #define   L1CSR1_ICFI           0x00000002      /* Instruction Cache Flash Invalidate */
 #define   L1CSR1_ICE            0x00000001      /* Instruction Cache Enable */
 
+#define SPRN_TLB0CFG   0x2B0   /* TLB 0 Config Register */
+#define SPRN_TLB1CFG   0x2B1   /* TLB 1 Config Register */
 #define SPRN_MMUCSR0	0x3f4	/* MMU control and status register 0 */
 #define SPRN_MAS0       0x270   /* MMU Assist Register 0 */
 #define SPRN_MAS1       0x271   /* MMU Assist Register 1 */
@@ -436,11 +448,17 @@
 #define SPRN_MCSRR0     0x23a   /* Machine Check Save and Restore Register 0 */
 #define SPRN_MCSRR1     0x23b   /* Machine Check Save and Restore Register 1 */
 #define SPRN_BUCSR	0x3f5	/* Branch Control and Status Register */
+#define   BUCSR_STAC_EN 0x01000000      /* Segment target addr cache enable */
+#define   BUCSR_LS_EN   0x00400000      /* Link stack enable */
+#define   BUCSR_BBFI    0x00000200      /* Branch buffer flash invalidate */
+#define   BUCSR_BPEN    0x00000001      /* Branch prediction enable */
+#define   BUCSR_ENABLE (BUCSR_STAC_EN|BUCSR_LS_EN|BUCSR_BBFI|BUCSR_BPEN)
 #define SPRN_BBEAR      0x201   /* Branch Buffer Entry Address Register */
 #define SPRN_BBTAR      0x202   /* Branch Buffer Target Address Register */
 #define SPRN_PID1       0x279   /* Process ID Register 1 */
 #define SPRN_PID2       0x27a   /* Process ID Register 2 */
 #define SPRN_MCSR	0x23c	/* Machine Check Syndrome register */
+#define SPRN_MCAR	0x23d	/* Machine Check Address register */
 #define ESR_ST          0x00800000      /* Store Operation */
 
 #if defined(CONFIG_MPC86xx)
@@ -586,6 +604,7 @@
 #define MCSRR1	SPRN_MCSRR1
 #define L1CSR0 	SPRN_L1CSR0
 #define L1CSR1	SPRN_L1CSR1
+#define L1CFG0 SPRN_L1CFG0
 #define MCSR	SPRN_MCSR
 #define MMUCSR0	SPRN_MMUCSR0
 #define BUCSR	SPRN_BUCSR
@@ -600,7 +619,13 @@
 #define MAS5	SPRN_MAS5
 #define MAS6	SPRN_MAS6
 #define MAS7	SPRN_MAS7
+#define MAS8	SPRN_MAS8
 
+#if defined(CONFIG_MPC85xx)
+#define DAR_DEAR DEAR
+#else
+#define DAR_DEAR DAR
+#endif
 /* Device Control Registers */
 
 #define DCRN_BEAR	0x090	/* Bus Error Address Register */
@@ -818,6 +843,8 @@
 #define SVR_MAJ(svr)	(((svr) >>  4) & 0xF)	/* Major revision field*/
 #define SVR_MIN(svr)	(((svr) >>  0) & 0xF)	/* Minor revision field*/
 
+/* Some parts define SVR[0:23] as the SOC version */
+#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFFFFF)	/* SOC Version fields */
 
 /*
  * SVR_VER() Version Values
@@ -830,6 +857,10 @@
 #define SVR_8548	0x8031
 #define SVR_8548_E	0x8039
 #define SVR_8641	0x8090
+#define SVR_P2020	0x80E200
+#define SVR_P2020_E	0x80EA00
+
+#define SVR_Unknown	0xFFFFFF
 
 
 /* I am just adding a single entry for 8260 boards.  I think we may be
@@ -924,6 +955,19 @@ n:
 #define SR15	15
 
 #ifndef __ASSEMBLY__
+
+struct cpu_type {
+	char name[15];
+	u32 soc_ver;
+	u32 num_cores;
+};
+
+struct cpu_type *identify_cpu(u32 ver);
+
+#if defined(CONFIG_MPC85xx)
+#define CPU_TYPE_ENTRY(n, v, nc) \
+	{ .name = #n, .soc_ver = SVR_##v, .num_cores = (nc), }
+#endif
 #ifndef CONFIG_MACH_SPECIFIC
 extern int _machine;
 extern int have_of;
diff --git a/arch/ppc/lib/Makefile b/arch/ppc/lib/Makefile
index e93f32f..f7d785e 100644
--- a/arch/ppc/lib/Makefile
+++ b/arch/ppc/lib/Makefile
@@ -5,8 +5,10 @@ obj-y += kgdb.o
 obj-y += ppcstring.o
 obj-y += ticks.o
 obj-$(CONFIG_MPC5200) += time-mpc5200.o
+obj-$(CONFIG_ARCH_MPC85XX) += time-mpc85xx.o
 obj-y += misc.o
 obj-$(CONFIG_CMD_BOOTM) += ppclinux.o
 obj-$(CONFIG_MODULES) += module.o
 obj-y += crtsavres.o
+obj-y += reloc.o
 
diff --git a/arch/ppc/lib/board.c b/arch/ppc/lib/board.c
index a840c75..2982237 100644
--- a/arch/ppc/lib/board.c
+++ b/arch/ppc/lib/board.c
@@ -30,22 +30,23 @@
 #include <net.h>
 #include <asm-generic/memory_layout.h>
 
-/************************************************************************
- *
+/*
  * This is the next part if the initialization sequence: we are now
  * running from RAM and have a "normal" C environment, i. e. global
  * data can be written, BSS has been cleared, the stack size in not
  * that critical any more, etc.
- *
- ************************************************************************
  */
 
-void board_init_r (ulong end_of_ram)
+void board_init_r(ulong dest_addr)
 {
 	unsigned long malloc_end;
 
 	asm ("sync ; isync");
 
+#ifdef CONFIG_MPC85xx
+	_text_base = dest_addr;
+#endif
+
 	/*
 	 * FIXME: 128k stack size. Is this enough? should
 	 *        it be configurable?
diff --git a/arch/ppc/lib/reloc.S b/arch/ppc/lib/reloc.S
new file mode 100644
index 0000000..92ee189
--- /dev/null
+++ b/arch/ppc/lib/reloc.S
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/ppc_asm.tmpl>
+
+	.file	"reloc.S"
+
+	.text
+	/*
+	 * Function: relocate entries for one exception vector
+	 */
+	.globl trap_reloc
+	.type	trap_reloc, @function
+trap_reloc:
+	lwz	r0, 0(r7)		/* hdlr ...		*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 0(r7)
+
+	lwz	r0, 4(r7)		/* int_return ...	*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 4(r7)
+
+	lwz	r0, 8(r7)		/* transfer_to_handler ...*/
+	add	r0, r0, r3		/*  ... += dest_addr	*/
+	stw	r0, 8(r7)
+
+	blr
+	.size	trap_reloc, .-trap_reloc
diff --git a/arch/ppc/lib/time-mpc85xx.c b/arch/ppc/lib/time-mpc85xx.c
new file mode 100644
index 0000000..4e36bad
--- /dev/null
+++ b/arch/ppc/lib/time-mpc85xx.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * (C) Copyright 2000, 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <clock.h>
+#include <init.h>
+#include <mach/clocks.h>
+#include <asm/common.h>
+
+uint64_t ppc_clocksource_read(void)
+{
+	return get_ticks();
+}
+
+static struct clocksource cs = {
+	.read	= ppc_clocksource_read,
+	.mask	= CLOCKSOURCE_MASK(64),
+};
+
+static int clocksource_init(void)
+{
+	/* reset time base */
+	asm ("li 3,0 ; mttbu 3 ; mttbl 3 ;");
+
+	clocks_calc_mult_shift(&cs.mult, &cs.shift, get_timebase_clock(),
+			       NSEC_PER_SEC, 10);
+
+	init_clock(&cs);
+
+	return 0;
+}
+
+core_initcall(clocksource_init);
diff --git a/arch/ppc/mach-mpc85xx/Kconfig b/arch/ppc/mach-mpc85xx/Kconfig
new file mode 100644
index 0000000..4758951
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/Kconfig
@@ -0,0 +1,45 @@
+if ARCH_MPC85XX
+
+config TEXT_BASE
+	hex
+	default 0xeff80000 if P2020RDB
+
+config BOARDINFO
+	default "P2020_RDB" if P2020RDB
+
+config MPC85xx
+	bool
+	default y if P2020RDB
+
+choice
+	prompt "Select your board"
+
+config P2020RDB
+	bool "P2020RDB"
+	help
+	Say Y here if you are using the Freescale P2020RDB
+
+endchoice
+endif
+
+if P2020RDB
+config P2020
+	bool
+	default y
+
+config BOOKE
+	bool
+	default y
+
+config E500
+	bool
+	default y
+
+config MP
+	bool
+	default y if P2020
+
+config FSL_ELBC
+	bool
+	default y
+endif
diff --git a/arch/ppc/mach-mpc85xx/Makefile b/arch/ppc/mach-mpc85xx/Makefile
new file mode 100644
index 0000000..36f87c0
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/Makefile
@@ -0,0 +1,5 @@
+obj-y 			+= cpuid.o
+obj-y			+= fsl_lbc.o
+obj-y			+= fsl_law.o
+obj-y			+= speed.o
+obj-$(CONFIG_MP)	+= mp.o
diff --git a/arch/ppc/mach-mpc85xx/cpuid.c b/arch/ppc/mach-mpc85xx/cpuid.c
new file mode 100644
index 0000000..52d63ca
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/cpuid.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * This file is derived from arch/powerpc/cpu/mpc85xx/cpu.c and
+ * arch/powerpc/cpu/mpc86xx/cpu.c. Basically this file contains
+ * cpu specific common code for 85xx/86xx processors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+#include <asm/global_data.h>
+#include <mach/immap_85xx.h>
+
+struct cpu_type cpu_type_list[] = {
+	CPU_TYPE_ENTRY(P2020, P2020, 2),
+	CPU_TYPE_ENTRY(P2020, P2020_E, 2),
+};
+
+struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 1);
+
+struct cpu_type *identify_cpu(u32 ver)
+{
+	int i;
+	for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) {
+		if (cpu_type_list[i].soc_ver == ver)
+			return &cpu_type_list[i];
+	}
+	return &cpu_type_unknown;
+}
+
+int cpu_numcores(void)
+{
+	void __iomem *pic = (void __iomem *)MPC8xxx_PIC_ADDR;
+	struct cpu_type *cpu;
+	uint svr;
+	uint ver;
+
+	svr = get_svr();
+	ver = SVR_SOC_VER(svr);
+	cpu = identify_cpu(ver);
+
+	/* better to query feature reporting register than just assume 1 */
+	if (cpu == &cpu_type_unknown)
+		return ((in_be32(pic + MPC85xx_PIC_FRR_OFFSET) &
+			MPC8xxx_PICFRR_NCPU_MASK) >> MPC8xxx_PICFRR_NCPU_SHIFT)
+			+ 1;
+
+	return cpu->num_cores;
+}
diff --git a/arch/ppc/mach-mpc85xx/fsl_law.c b/arch/ppc/mach-mpc85xx/fsl_law.c
new file mode 100644
index 0000000..57999f4
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/fsl_law.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/global_data.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FSL_HW_NUM_LAWS FSL_NUM_LAWS
+
+#define LAW_BASE (CFG_IMMR + 0xC08)
+#define LAWAR_ADDR(x) ((u32 *)LAW_BASE + 8 * (x) + 2)
+#define LAWBAR_ADDR(x) ((u32 *)LAW_BASE + 8 * (x))
+#define LAWBAR_SHIFT 12
+
+static inline phys_addr_t get_law_base_addr(int idx)
+{
+	return (phys_addr_t)in_be32(LAWBAR_ADDR(idx)) << LAWBAR_SHIFT;
+}
+
+static inline void set_law_base_addr(int idx, phys_addr_t addr)
+{
+	out_be32(LAWBAR_ADDR(idx), addr >> LAWBAR_SHIFT);
+}
+
+static void set_law(u8 idx, phys_addr_t addr, enum law_size sz,
+		    enum law_trgt_if id)
+{
+	gd->used_laws |= (1 << idx);
+
+	out_be32(LAWAR_ADDR(idx), 0);
+	set_law_base_addr(idx, addr);
+	out_be32(LAWAR_ADDR(idx), LAW_EN | ((u32)id << 20) | (u32)sz);
+
+	/* Read back so that we sync the writes */
+	in_be32(LAWAR_ADDR(idx));
+}
+
+static int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+	u32 idx = ffz(gd->used_laws);
+
+	if (idx >= FSL_HW_NUM_LAWS)
+		return -1;
+
+	set_law(idx, addr, sz, id);
+
+	return idx;
+}
+
+static int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
+{
+	u32 idx;
+
+	/* we have no LAWs free */
+	if (gd->used_laws == -1)
+		return -1;
+
+	/* grab the last free law */
+	idx = __ilog2(~(gd->used_laws));
+
+	if (idx >= FSL_HW_NUM_LAWS)
+		return -1;
+
+	set_law(idx, addr, sz, id);
+
+	return idx;
+}
+
+/* use up to 2 LAWs for DDR, used the last available LAWs */
+int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id)
+{
+	u64 start_align, law_sz;
+	int law_sz_enc;
+
+	if (start == 0)
+		start_align = 1ull << (LAW_SIZE_32G + 1);
+	else
+		start_align = 1ull << (ffs64(start) - 1);
+
+	law_sz = min(start_align, sz);
+	law_sz_enc = __ilog2_u64(law_sz) - 1;
+
+	if (set_last_law(start, law_sz_enc, id) < 0)
+		return -1;
+
+	/* recalculate size based on what was actually covered by the law */
+	law_sz = 1ull << __ilog2_u64(law_sz);
+
+	/* do we still have anything to map */
+	sz = sz - law_sz;
+	if (sz) {
+		start += law_sz;
+
+		start_align = 1ull << (ffs64(start) - 1);
+		law_sz = min(start_align, sz);
+		law_sz_enc = __ilog2_u64(law_sz) - 1;
+
+		if (set_last_law(start, law_sz_enc, id) < 0)
+			return -1;
+	} else {
+		return 0;
+	}
+
+	/* do we still have anything to map */
+	sz = sz - law_sz;
+	if (sz)
+		return 1;
+
+	return 0;
+}
+
+void init_laws(void)
+{
+	int i;
+
+	if (FSL_HW_NUM_LAWS < 32)
+		gd->used_laws = ~((1 << FSL_HW_NUM_LAWS) - 1);
+	else if (FSL_HW_NUM_LAWS == 32)
+		gd->used_laws = 0;
+	else
+		panic("FSL_HW_NUM_LAWS can not be > 32 w/o code changes");
+
+	for (i = 0; i < num_law_entries; i++) {
+		if (law_table[i].index == -1)
+			set_next_law(law_table[i].addr, law_table[i].size,
+					law_table[i].trgt_id);
+		else
+			set_law(law_table[i].index, law_table[i].addr,
+				law_table[i].size, law_table[i].trgt_id);
+	}
+}
diff --git a/arch/ppc/mach-mpc85xx/fsl_lbc.c b/arch/ppc/mach-mpc85xx/fsl_lbc.c
new file mode 100644
index 0000000..78a46e8
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/fsl_lbc.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2010-2011 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ */
+
+#include <common.h>
+#include <asm/fsl_lbc.h>
+#include <mach/immap_85xx.h>
+
+void init_early_memctl_regs(void)
+{
+	set_lbc_br(0, CFG_BR0_PRELIM);
+	set_lbc_or(0, CFG_OR0_PRELIM);
+}
diff --git a/arch/ppc/mach-mpc85xx/include/mach/clocks.h b/arch/ppc/mach-mpc85xx/include/mach/clocks.h
new file mode 100644
index 0000000..99c63be
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/clocks.h
@@ -0,0 +1,11 @@
+#ifndef __ASM_ARCH_CLOCKS_H
+#define __ASM_ARCH_CLOCKS_H
+
+#include <mach/mpc85xx.h>
+
+#define NSEC_PER_SEC	1000000000L
+
+unsigned long get_bus_freq(ulong dummy);
+unsigned long get_timebase_clock(void);
+void get_sys_info(struct sys_info *sysInfo);
+#endif /* __ASM_ARCH_CLOCKS_H */
diff --git a/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h b/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
new file mode 100644
index 0000000..e0d8989
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+/* delay execution before timers are initialized */
+static inline void early_udelay(uint32_t usecs)
+{
+	/* loop takes 4 cycles. */
+	 uint32_t loops = usecs * (1000 / 4); /* CPU freq = 1Ghz */
+
+	while (loops)
+		loops--;
+}
diff --git a/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h b/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
new file mode 100644
index 0000000..b802249
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h
@@ -0,0 +1,132 @@
+/*
+ * MPC85xx Internal Memory Map
+ *
+ * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * Copyright(c) 2002,2003 Motorola Inc.
+ * Xianghua Xiao (x.xiao@motorola.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __IMMAP_85xx__
+#define __IMMAP_85xx__
+
+#include <asm/types.h>
+#include <asm/fsl_lbc.h>
+#include <asm/config.h>
+
+#define MPC85xx_LOCAL_OFFSET	0x0000
+#define MPC85xx_ECM_OFFSET	0x1000
+#define MPC85xx_DDR_OFFSET	0x2000
+#define MPC85xx_LBC_OFFSET	0x5000
+
+#define MPC85xx_GPIO_OFFSET	0xf000
+#define MPC85xx_L2_OFFSET	0x20000
+
+#define MPC85xx_PIC_OFFSET	0x40000
+#define MPC85xx_GUTS_OFFSET	0xe0000
+
+#define MPC85xx_LOCAL_ADDR	(CFG_IMMR + MPC85xx_LOCAL_OFFSET)
+#define MPC85xx_ECM_ADDR	(CFG_IMMR + MPC85xx_ECM_OFFSET)
+#define MPC85xx_GUTS_ADDR	(CFG_IMMR + MPC85xx_GUTS_OFFSET)
+#define MPC85xx_DDR_ADDR	(CFG_IMMR + MPC85xx_DDR_OFFSET)
+#define LBC_ADDR		(CFG_IMMR + MPC85xx_LBC_OFFSET)
+#define MPC85xx_GPIO_ADDR	(CFG_IMMR + MPC85xx_GPIO_OFFSET)
+#define MPC85xx_L2_ADDR		(CFG_IMMR + MPC85xx_L2_OFFSET)
+#define MPC8xxx_PIC_ADDR	(CFG_IMMR + MPC85xx_PIC_OFFSET)
+
+/* Local-Access Registers */
+#define MPC85xx_LOCAL_BPTR_OFFSET	0x20 /* Boot Page Translation */
+
+/* ECM Registers */
+#define MPC85xx_ECM_EEBPCR_OFFSET	0x00 /* ECM CCB Port Configuration */
+
+/*
+ * DDR Memory Controller Register Offsets
+ */
+/* Chip Select 0, 1,2, 3 Memory Bounds */
+#define MPC85xx_DDR_CS0_BNDS_OFFSET		0x000
+#define MPC85xx_DDR_CS1_BNDS_OFFSET		0x008
+#define MPC85xx_DDR_CS2_BNDS_OFFSET		0x010
+#define MPC85xx_DDR_CS3_BNDS_OFFSET		0x018
+/* Chip Select 0, 1, 2, 3 Configuration */
+#define MPC85xx_DDR_CS0_CONFIG_OFFSET		0x080
+#define MPC85xx_DDR_CS1_CONFIG_OFFSET		0x084
+#define MPC85xx_DDR_CS2_CONFIG_OFFSET		0x088
+#define MPC85xx_DDR_CS3_CONFIG_OFFSET		0x08c
+/* SDRAM Timing Configuration 0, 1, 2, 3 */
+#define MPC85xx_DDR_TIMING_CFG_3_OFFSET		0x100
+#define MPC85xx_DDR_TIMING_CFG_0_OFFSET		0x104
+#define MPC85xx_DDR_TIMING_CFG_1_OFFSET		0x108
+#define MPC85xx_DDR_TIMING_CFG_2_OFFSET		0x10c
+/* SDRAM Control Configuration */
+#define MPC85xx_DDR_SDRAM_CFG_OFFSET		0x110
+#define MPC85xx_DDR_SDRAM_CFG_2_OFFSET		0x114
+/* SDRAM Mode Configuration */
+#define MPC85xx_DDR_SDRAM_MODE_OFFSET		0x118
+#define MPC85xx_DDR_SDRAM_MODE_2_OFFSET		0x11c
+/* SDRAM Mode Control */
+#define MPC85xx_DDR_SDRAM_MD_CNTL_OFFSET	0x120
+/* SDRAM Interval Configuration */
+#define MPC85xx_DDR_SDRAM_INTERVAL_OFFSET	0x124
+/* SDRAM Data initialization */
+#define MPC85xx_DDR_SDRAM_DATA_INIT_OFFSET	0x128
+/* SDRAM Clock Control */
+#define MPC85xx_DDR_SDRAM_CLK_CNTL_OFFSET	0x130
+/* training init and extended addr */
+#define MPC85xx_DDR_SDRAM_INIT_ADDR_OFFSET	0x148
+#define MPC85xx_DDR_SDRAM_INIT_ADDR_EXT_OFFSET	0x14c
+
+#define DDR_OFF(REGNAME)	(MPC85xx_DDR_##REGNAME##_OFFSET)
+
+/*
+ * GPIO Register Offsets
+ */
+#define MPC85xx_GPIO_GPDIR	0x00
+#define MPC85xx_GPIO_GPDAT	0x08
+
+/*
+ * L2 Cache Register Offsets
+ */
+#define MPC85xx_L2_CTL_OFFSET	0x0		/* L2 configuration 0 */
+#define		MPC85xx_L2CTL_L2E	0x80000000
+
+/* PIC registers offsets */
+#define MPC85xx_PIC_WHOAMI_OFFSET	0x090
+#define MPC85xx_PIC_FRR_OFFSET		0x1000	/* Feature Reporting */
+/* PIC registers fields values and masks. */
+#define MPC8xxx_PICFRR_NCPU_MASK	0x00001f00
+#define MPC8xxx_PICFRR_NCPU_SHIFT	8
+#define MPC85xx_PICGCR_RST		0x80000000
+#define MPC85xx_PICGCR_M		0x20000000
+
+#define MPC85xx_PIC_IACK0_OFFSET	0x600a0	/* IRQ Acknowledge for
+						   Processor 0 */
+
+/* Global Utilities Register Offsets and field values */
+#define MPC85xx_GUTS_PORPLLSR_OFFSET	0x0
+#define		MPC85xx_PORPLLSR_DDR_RATIO		0x00003e00
+#define		MPC85xx_PORPLLSR_DDR_RATIO_SHIFT	9
+#define MPC85xx_GUTS_DEVDISR_OFFSET	0x70
+#define		MPC85xx_DEVDISR_TB0	0x00004000
+#define		MPC85xx_DEVDISR_TB1	0x00001000
+#define MPC85xx_GUTS_RSTCR_OFFSET	0xb0
+
+#endif /*__IMMAP_85xx__*/
diff --git a/arch/ppc/mach-mpc85xx/include/mach/mp.h b/arch/ppc/mach-mpc85xx/include/mach/mp.h
new file mode 100644
index 0000000..19b5c87
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/mp.h
@@ -0,0 +1,15 @@
+#ifndef __MPC85XX_MP_H_
+#define __MPC85XX_MP_H_
+
+void setup_mp(void);
+int cpu_numcores(void);
+
+extern ulong __secondary_start_page;
+extern ulong __spin_table;
+extern ulong __bootpg_addr;
+
+#define BOOT_ENTRY_ADDR_LOWER	1
+#define NUM_BOOT_ENTRY		8
+#define SIZE_BOOT_ENTRY		(NUM_BOOT_ENTRY * sizeof(u32))
+
+#endif
diff --git a/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h b/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
new file mode 100644
index 0000000..ba27c64
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2004, 2007 Freescale Semiconductor.
+ * Copyright(c) 2003 Motorola Inc.
+ */
+
+#ifndef	__MPC85xx_H__
+#define __MPC85xx_H__
+
+/* define for common ppc_asm.tmpl */
+#define EXC_OFF_SYS_RESET	0x100	/* System reset */
+#define _START_OFFSET		0
+
+#if defined(CONFIG_E500)
+#include <asm/e500.h>
+#endif
+
+#endif	/* __MPC85xx_H__ */
diff --git a/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl b/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
new file mode 100644
index 0000000..2dd3535
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl
@@ -0,0 +1,208 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * This file contains all the macros and symbols which define
+ * a PowerPC assembly language environment.
+ */
+#ifndef	__PPC_ASM_TMPL__
+#define __PPC_ASM_TMPL__
+
+/*
+ * These definitions simplify the ugly declarations necessary for GOT
+ * definitions.
+ *
+ * Stolen from prepboot/bootldr.h, (C) 1998 Gabriel Paubert, paubert@iram.es
+ *
+ * Uses r12 to access the GOT
+ */
+
+#define START_GOT			\
+	.section	".got2","aw";	\
+.LCTOC1 = .+32768
+
+#define END_GOT				\
+	.text
+
+#define GET_GOT				\
+	bl	1f		;	\
+	.text	2		;	\
+0:	.long	.LCTOC1-1f	;	\
+	.text			;	\
+1:	mflr	r12		;	\
+	lwz	r0,0b-1b(r12)	;	\
+	add	r12,r0,r12	;
+
+#define GOT_ENTRY(NAME)		.L_ ## NAME = . - .LCTOC1 ; .long NAME
+
+#define GOT(NAME)		.L_ ## NAME (r12)
+
+/* Register names */
+#define	r0	0
+#define	r1	1
+#define	r2	2
+#define	r3	3
+#define	r4	4
+#define	r5	5
+#define	r6	6
+#define	r7	7
+#define	r8	8
+#define	r9	9
+#define	r10	10
+#define	r11	11
+#define	r12	12
+#define	r13	13
+#define	r14	14
+#define	r15	15
+#define	r16	16
+#define	r17	17
+#define	r18	18
+#define	r19	19
+#define	r20	20
+#define	r21	21
+#define	r22	22
+#define	r23	23
+#define	r24	24
+#define	r25	25
+#define	r26	26
+#define	r27	27
+#define	r28	28
+#define	r29	29
+#define	r30	30
+#define	r31	31
+
+#define curptr r2
+
+#define SYNC \
+	sync; \
+	isync
+
+/*
+ * Macros for storing registers into and loading registers from
+ * exception frames.
+ */
+#define SAVE_GPR(n, base)	stw	n,GPR0+4*(n)(base)
+#define SAVE_2GPRS(n, base)	SAVE_GPR(n, base); SAVE_GPR(n+1, base)
+#define SAVE_4GPRS(n, base)	SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
+#define SAVE_8GPRS(n, base)	SAVE_4GPRS(n, base); SAVE_4GPRS(n+4, base)
+#define SAVE_10GPRS(n, base)	SAVE_8GPRS(n, base); SAVE_2GPRS(n+8, base)
+#define REST_GPR(n, base)	lwz	n,GPR0+4*(n)(base)
+#define REST_2GPRS(n, base)	REST_GPR(n, base); REST_GPR(n+1, base)
+#define REST_4GPRS(n, base)	REST_2GPRS(n, base); REST_2GPRS(n+2, base)
+#define REST_8GPRS(n, base)	REST_4GPRS(n, base); REST_4GPRS(n+4, base)
+#define REST_10GPRS(n, base)	REST_8GPRS(n, base); REST_2GPRS(n+8, base)
+
+/*
+ * GCC sometimes accesses words at negative offsets from the stack
+ * pointer, although the SysV ABI says it shouldn't.  To cope with
+ * this, we leave this much untouched space on the stack on exception
+ * entry.
+ */
+#define STACK_UNDERHEAD	64
+
+/*
+ * Exception entry code.  This code runs with address translation
+ * turned off, i.e. using physical addresses.
+ * We assume sprg3 has the physical address of the current
+ * task's thread_struct.
+ */
+#define EXCEPTION_PROLOG(reg1, reg2)	\
+	mtspr	SPRG0,r20;	\
+	mtspr	SPRG1,r21;	\
+	mfcr	r20;		\
+	subi	r21,r1,INT_FRAME_SIZE+STACK_UNDERHEAD;	/* alloc exc. frame */\
+	stw	r20,_CCR(r21);		/* save registers */ \
+	stw	r22,GPR22(r21);	\
+	stw	r23,GPR23(r21);	\
+	mfspr	r20,SPRG0;	\
+	stw	r20,GPR20(r21);	\
+	mfspr	r22,SPRG1;	\
+	stw	r22,GPR21(r21);	\
+	mflr	r20;		\
+	stw	r20,_LINK(r21);	\
+	mfctr	r22;		\
+	stw	r22,_CTR(r21);	\
+	mfspr	r20,XER;	\
+	stw	r20,_XER(r21);	\
+	mfspr	r20, DAR_DEAR;	\
+	stw	r20,_DAR(r21);	\
+	mfspr	r22,reg1;	\
+	mfspr	r23,reg2;	\
+	stw	r0,GPR0(r21);	\
+	stw	r1,GPR1(r21);	\
+	stw	r2,GPR2(r21);	\
+	stw	r1,0(r21);	\
+	mr	r1,r21;			/* set new kernel sp */	\
+	SAVE_4GPRS(3, r21);
+/*
+ * Note: code which follows this uses cr0.eq (set if from kernel),
+ * r21, r22 (SRR0), and r23 (SRR1).
+ */
+
+/*
+ * Exception vectors.
+ *
+ * The data words for `hdlr' and `int_return' are initialized with
+ * OFFSET values only; they must be relocated first before they can
+ * be used!
+ */
+#define COPY_EE(d, s)		rlwimi d,s,0,16,16
+#define NOCOPY(d, s)
+#define EXC_XFER_TEMPLATE(label, hdlr, msr, copyee)	\
+	bl	1f;					\
+1:	mflr    r20;					\
+	lwz	r20,(.L_ ## label)-1b+8(r20);		\
+	mtlr	r20;					\
+	li	r20,msr;				\
+	copyee(r20,r23);				\
+	rlwimi	r20,r23,0,25,25;			\
+	blrl;						\
+.L_ ## label :						\
+	.long	hdlr - _start + _START_OFFSET;		\
+	.long	int_return - _start + _START_OFFSET;	\
+	.long	transfer_to_handler - _start + _START_OFFSET
+
+#define STD_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(SRR0, SRR1);				\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr, MSR_KERNEL, NOCOPY)	\
+
+#define CRIT_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(CSRR0, CSRR1);				\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr,				\
+	MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY)		\
+
+#define MCK_EXCEPTION(n, label, hdlr)				\
+	. = n;							\
+label:								\
+	EXCEPTION_PROLOG(MCSRR0, MCSRR1);			\
+	addi	r3,r1,STACK_FRAME_OVERHEAD;			\
+	EXC_XFER_TEMPLATE(label, hdlr,				\
+	MSR_KERNEL & ~(MSR_ME|MSR_DE|MSR_CE), NOCOPY)		\
+
+#endif	/* __PPC_ASM_TMPL__ */
diff --git a/arch/ppc/mach-mpc85xx/mp.c b/arch/ppc/mach-mpc85xx/mp.c
new file mode 100644
index 0000000..02dc7fa
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/mp.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <environment.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <mach/immap_85xx.h>
+#include <mach/early_udelay.h>
+#include <mach/mp.h>
+
+/*
+ * Determine if Barebox should keep secondary cores in reset, or let them out
+ * of reset and hold them in a spinloop.
+ *
+ */
+static int hold_cores_in_reset(int verbose)
+{
+	/* Do not hold core in reset. */
+	return 0;
+}
+
+static u32 determine_mp_bootpg(void)
+{
+	/* if we have 4G or more of memory, put the boot page at 4Gb-4k */
+	if ((u64)get_effective_memsize() > 0xfffff000)
+		return 0xfffff000;
+
+	return get_effective_memsize() - 4096;
+}
+
+static ulong get_spin_virt_addr(void)
+{
+	return BPTR_VIRT_ADDR + (ulong)&__spin_table -
+		(ulong)&__secondary_start_page;
+}
+
+static void plat_mp_up(unsigned long bootpg)
+{
+	u32 up, cpu_up_mask, whoami;
+	u32 *table = (u32 *)get_spin_virt_addr();
+	u32 bpcr;
+	void __iomem *local = (void __iomem *)(MPC85xx_LOCAL_ADDR);
+	void __iomem *ecm = (void __iomem *)(MPC85xx_ECM_ADDR);
+	void __iomem *gur = (void __iomem *)(MPC85xx_GUTS_ADDR);
+	void __iomem *pic = (void __iomem *)(MPC8xxx_PIC_ADDR);
+	u32 devdisr;
+	int timeout = 10;
+
+	whoami = in_be32(pic + MPC85xx_PIC_WHOAMI_OFFSET);
+	out_be32(local + MPC85xx_LOCAL_BPTR_OFFSET,
+		0x80000000 | (bootpg >> 12));
+
+	/* disable time base at the platform */
+	devdisr = in_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET);
+	if (whoami)
+		devdisr |= MPC85xx_DEVDISR_TB0;
+	else
+		devdisr |= MPC85xx_DEVDISR_TB1;
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+
+	up = ((1 << cpu_numcores()) - 1);
+	bpcr = in_be32(ecm + MPC85xx_ECM_EEBPCR_OFFSET);
+	bpcr |= (up << 24);
+	out_be32(ecm + MPC85xx_ECM_EEBPCR_OFFSET, bpcr);
+	asm("sync; isync; msync");
+
+	cpu_up_mask = 1 << whoami;
+	/* wait for everyone */
+	while (timeout) {
+		int i;
+		for (i = 0; i < cpu_numcores(); i++) {
+			if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER])
+				cpu_up_mask |= (1 << i);
+		};
+
+		if ((cpu_up_mask & up) == up)
+			break;
+
+		early_udelay(100);
+		timeout--;
+	}
+
+	if (timeout == 0)
+		debug("CPU up timeout. CPU up mask is %x should be %x\n",
+			cpu_up_mask, up);
+
+	/* enable time base at the platform */
+	if (whoami)
+		devdisr |= MPC85xx_DEVDISR_TB1;
+	else
+		devdisr |= MPC85xx_DEVDISR_TB0;
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+	mtspr(SPRN_TBWU, 0);
+	mtspr(SPRN_TBWL, 0);
+
+	devdisr &= ~(MPC85xx_DEVDISR_TB0 | MPC85xx_DEVDISR_TB1);
+	out_be32(gur + MPC85xx_GUTS_DEVDISR_OFFSET, devdisr);
+}
+
+void setup_mp(void)
+{
+	ulong fixup = (ulong)&__secondary_start_page;
+	u32 bootpg = determine_mp_bootpg();
+	int i;
+
+	if (hold_cores_in_reset(0))
+		return;
+
+	/* Store the bootpg's SDRAM address for use by secondary CPU cores */
+	__bootpg_addr = bootpg;
+
+	/* look for the tlb covering the reset page, there better be one */
+	i = find_tlb_idx((void *)BPTR_VIRT_ADDR, 1);
+
+	/* we found a match */
+	if (i != -1) {
+		/* map reset page to bootpg so we can copy code there */
+		disable_tlb(i);
+
+		set_tlb(1, BPTR_VIRT_ADDR, bootpg, /* tlb, epn, rpn */
+			MAS3_SX|MAS3_SW|MAS3_SR,
+			MAS2_I|MAS2_G, /* perms, wimge */
+			0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */
+
+		memcpy((void *)BPTR_VIRT_ADDR, (void *)fixup, 4096);
+
+		plat_mp_up(bootpg);
+	} else {
+		puts("WARNING: No reset page TLB. "
+			"Skipping secondary core setup\n");
+	}
+}
diff --git a/arch/ppc/mach-mpc85xx/speed.c b/arch/ppc/mach-mpc85xx/speed.c
new file mode 100644
index 0000000..074de55
--- /dev/null
+++ b/arch/ppc/mach-mpc85xx/speed.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ *
+ * Copyright 2004, 2007-2011 Freescale Semiconductor, Inc.
+ *
+ * (C) Copyright 2003 Motorola Inc.
+ * Xianghua Xiao, (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/ppc_asm.tmpl>
+#include <asm/processor.h>
+#include <asm/io.h>
+#include <mach/mpc85xx.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+
+void get_sys_info(struct sys_info *sysInfo)
+{
+	void __iomem *gur = (void __iomem *)(MPC85xx_GUTS_ADDR);
+	uint plat_ratio, e500_ratio, half_freqSystemBus;
+	uint lcrr_div;
+	int i;
+
+	plat_ratio = in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) & 0x0000003e;
+	plat_ratio >>= 1;
+	sysInfo->freqSystemBus = plat_ratio * CFG_SYS_CLK_FREQ;
+
+	/*
+	 * Divide before multiply to avoid integer
+	 * overflow for processor speeds above 2GHz.
+	 */
+	half_freqSystemBus = sysInfo->freqSystemBus/2;
+	for (i = 0; i < cpu_numcores(); i++) {
+		e500_ratio = (in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) >>
+				(i * 8 + 16)) & 0x3f;
+		sysInfo->freqProcessor[i] = e500_ratio * half_freqSystemBus;
+	}
+
+	/* Note: freqDDRBus is the MCLK frequency, not the data rate. */
+	sysInfo->freqDDRBus = sysInfo->freqSystemBus;
+
+#ifdef CFG_DDR_CLK_FREQ
+	{
+		u32 ddr_ratio = (in_be32(gur + MPC85xx_GUTS_PORPLLSR_OFFSET) &
+					MPC85xx_PORPLLSR_DDR_RATIO) >>
+					MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
+		if (ddr_ratio != 0x7)
+			sysInfo->freqDDRBus = ddr_ratio * CFG_DDR_CLK_FREQ;
+	}
+#endif
+
+	lcrr_div = in_be32(LBC_BASE_ADDR + FSL_LBC_LCCR) & LCRR_CLKDIV;
+
+	if (lcrr_div == 2 || lcrr_div == 4 || lcrr_div == 8) {
+		/*
+		 * The entire PQ38 family use the same bit-representation
+		 * for twice the clock divider values.
+		 */
+		lcrr_div *= 2;
+
+		sysInfo->freqLocalBus = sysInfo->freqSystemBus / lcrr_div;
+	} else {
+		/* In case anyone cares what the unknown value is */
+		sysInfo->freqLocalBus = lcrr_div;
+	}
+}
+
+unsigned long get_bus_freq(ulong dummy)
+{
+	struct sys_info sys_info;
+
+	get_sys_info(&sys_info);
+
+	return sys_info.freqSystemBus;
+}
diff --git a/include/linux/types.h b/include/linux/types.h
index 16cc3ce..76c6b67 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -144,8 +144,10 @@ typedef __u32 __bitwise __wsum;
 
 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 typedef u64 phys_addr_t;
+typedef u64 phys_size_t;
 #else
 typedef u32 phys_addr_t;
+typedef u32 phys_size_t;
 #endif
 
 typedef phys_addr_t resource_size_t;
-- 
1.7.1


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* [PATCH V3 3/3] Minimal P2020RDB platform support and configuration file
  2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
                     ` (2 preceding siblings ...)
  2012-04-20  9:21   ` [PATCH V3 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
@ 2012-04-20  9:21   ` Renaud Barbier
  3 siblings, 0 replies; 11+ messages in thread
From: Renaud Barbier @ 2012-04-20  9:21 UTC (permalink / raw)
  To: barebox

This is a limited board support for the P2020RDB platform.
The DDR is configured for a memory bus running at 667Mhz.
The board  boots from NOR flash and output the prompt to the
serial port at 115200 bauds. No other drivers are provided.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
---
 arch/ppc/Makefile                                |    1 +
 arch/ppc/boards/freescale-p2020rdb/Makefile      |    4 +
 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S |  144 +++++++++++++
 arch/ppc/boards/freescale-p2020rdb/config.h      |   98 +++++++++
 arch/ppc/boards/freescale-p2020rdb/law.c         |   31 +++
 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c    |  237 ++++++++++++++++++++++
 arch/ppc/boards/freescale-p2020rdb/tlb.c         |   62 ++++++
 arch/ppc/configs/p2020rdb_defconfig              |   23 ++
 8 files changed, 600 insertions(+), 0 deletions(-)
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/Makefile
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/config.h
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/law.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
 create mode 100644 arch/ppc/boards/freescale-p2020rdb/tlb.c
 create mode 100644 arch/ppc/configs/p2020rdb_defconfig

diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 6ab1db1..3231ac9 100644
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -12,6 +12,7 @@ CPPFLAGS += -ffixed-r2 -Wa,-me500x2 -msoft-float -mno-string
 endif
 
 board-$(CONFIG_MACH_PHYCORE_MPC5200B_TINY)	:= pcm030
+board-$(CONFIG_P2020RDB)			:= freescale-p2020rdb
 
 machine-$(CONFIG_ARCH_MPC5200)			:= mpc5xxx
 machine-$(CONFIG_ARCH_MPC85XX)			:= mpc85xx
diff --git a/arch/ppc/boards/freescale-p2020rdb/Makefile b/arch/ppc/boards/freescale-p2020rdb/Makefile
new file mode 100644
index 0000000..141b680
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/Makefile
@@ -0,0 +1,4 @@
+obj-y	+= p2020rdb.o
+obj-y	+= law.o
+obj-y	+= tlb.o
+extra-y += barebox.lds
diff --git a/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S b/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
new file mode 100644
index 0000000..cfccea9
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/barebox.lds.S
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2007-2009, 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm-generic/barebox.lds.h>
+
+#define RESET_VECTOR_ADDRESS	0xeffffffc
+
+OUTPUT_ARCH("powerpc")
+
+PHDRS
+{
+  text PT_LOAD;
+  bss PT_LOAD;
+}
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = TEXT_BASE;
+
+  .text      :
+  {
+    *(.text*)
+  } :text
+
+  _etext = .;
+  PROVIDE (etext = .);
+
+  .rodata    :
+  {
+    *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+  } :text
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+
+  _erotext = .;
+  PROVIDE (erotext = .);
+
+  .reloc   :
+  {
+    _GOT2_TABLE_ = .;
+    KEEP(*(.got2))
+    KEEP(*(.got))
+    PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
+    _FIXUP_TABLE_ = .;
+    KEEP(*(.fixup))
+  }
+  __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+  __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+  .data    :
+  {
+    *(.data*)
+    *(.data1*)
+    *(.sdata*)
+    *(.sdata2*)
+    *(.dynamic*)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+  __barebox_cmd_start = .;
+  .barebox_cmd : { BAREBOX_CMDS }
+  __barebox_cmd_end = .;
+
+  __barebox_initcalls_start = .;
+  .barebox_initcalls : { INITCALLS }
+  __barebox_initcalls_end = .;
+  __initcall_entries = (__barebox_initcalls_end - __barebox_initcalls_start)>>2;
+
+  __usymtab_start = .;
+  __usymtab : { BAREBOX_SYMS }
+  __usymtab_end = .;
+
+  __early_init_data_begin = .;
+  .early_init_data : { *(.early_init_data) }
+  __early_init_data_end = .;
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __init_size = __init_end - _start;
+
+  .bootpg RESET_VECTOR_ADDRESS - 0xffc :
+  {
+    _text = .;
+    _stext = .;
+    arch/ppc/cpu-85xx/start.o	(.bootpg)
+  } :text = 0xffff
+
+  .resetvec RESET_VECTOR_ADDRESS :
+  {
+    arch/ppc/cpu-85xx/resetvec.o	(.resetvec)
+  } :text = 0xffff
+
+  . = RESET_VECTOR_ADDRESS + 0x4;
+
+  . = 0x10000;
+  __bss_start = .;
+  .bss        :
+  {
+    *(.sbss*) *(.scommon*)
+    *(.dynbss*)
+    *(.bss*)
+    *(COMMON)
+  } :bss
+
+  . = ALIGN(4);
+  __bss_stop = .;
+  _end = . ;
+  PROVIDE (end = .);
+}
diff --git a/arch/ppc/boards/freescale-p2020rdb/config.h b/arch/ppc/boards/freescale-p2020rdb/config.h
new file mode 100644
index 0000000..c780747
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/config.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * P2020RDB board configuration file
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#ifndef __ASSEMBLY__
+extern unsigned long get_board_sys_clk(unsigned long dummy);
+#endif
+#define CFG_SYS_CLK_FREQ	get_board_sys_clk(0)
+#define CFG_DDR_CLK_FREQ	66666666
+
+#define CFG_BTB			/* toggle branch predition */
+
+/*
+ * Base addresses -- Note these are effective addresses where the
+ * actual resources get mapped (not physical addresses)
+ */
+#define CFG_CCSRBAR_DEFAULT	0xff700000
+
+#define CFG_CCSRBAR		0xffe00000	/* relocated CCSRBAR */
+#define CFG_CCSRBAR_PHYS	CFG_CCSRBAR
+
+#define CFG_IMMR		CFG_CCSRBAR
+
+/* DDR Setup */
+
+#define CFG_CHIP_SELECTS_PER_CTRL   1
+
+#define CFG_SDRAM_BASE		0x00000000
+
+/* These timings are adjusted for a 667Mhz clock. */
+#define CFG_SYS_DDR_CS0_BNDS		0x0000003f	/* 1GB */
+#define CFG_SYS_DDR_CS0_CONFIG	        0x80014202
+#define CFG_SYS_DDR_TIMING_3		0x00030000
+#define CFG_SYS_DDR_TIMING_0		0x55770802
+#define CFG_SYS_DDR_TIMING_1		0x5f599543
+#define CFG_SYS_DDR_TIMING_2		0x0fa074d1
+
+#define CFG_SYS_DDR_CONTROL		0xc3000000
+#define CFG_SYS_DDR_CONTROL2		0x24401000
+#define CFG_SYS_DDR_MODE_1		0x00040852
+#define CFG_SYS_DDR_MODE_2		0x00000000
+#define CFG_SYS_MD_CNTL			0x00000000
+#define CFG_SYS_DDR_INTERVAL		0x0a280100
+
+#define CFG_SYS_DDR_DATA_INIT	        0xdeadbeef
+#define CFG_SYS_DDR_CLK_CTRL		0x03000000
+
+/*
+ * Memory map
+ *
+ * 0x0000_0000	0x3fff_ffff	DDR			1G cacheablen
+ *
+ * Localbus non-cacheable
+ * 0xef00_0000	0xefff_ffff	FLASH			16M non-cacheable
+ * 0xffd0_0000	0xffd0_3fff	L1 for stack		16K Cacheable TLB0
+ */
+
+/*
+ * Local Bus Definitions
+ */
+#define CFG_FLASH_BASE		0xef000000
+#define CFG_FLASH_BASE_PHYS	CFG_FLASH_BASE
+
+#define CFG_INIT_RAM_ADDR	0xffd00000	/* stack in RAM */
+/* Leave 256 bytes for global data */
+#define CFG_INIT_SP_OFFSET	(0x00004000 - 256)
+
+#define CFG_BR0_PRELIM	(BR_PHYS_ADDR(CFG_FLASH_BASE_PHYS) |	\
+			 BR_PS_16 | BR_V)	/* NOR Base Address */
+#define CFG_OR0_PRELIM  0xff000ff7		/* NOR Options      */
+
+#endif	/* __CONFIG_H */
diff --git a/arch/ppc/boards/freescale-p2020rdb/law.c b/arch/ppc/boards/freescale-p2020rdb/law.c
new file mode 100644
index 0000000..e748ccc
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/law.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/fsl_law.h>
+#include <asm/mmu.h>
+
+struct law_entry law_table[] = {
+	SET_LAW(CFG_FLASH_BASE_PHYS, LAW_SIZE_16M, LAW_TRGT_IF_LBC),
+};
+
+int num_law_entries = ARRAY_SIZE(law_table);
diff --git a/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
new file mode 100644
index 0000000..c28d452
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/p2020rdb.c
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2012 GE Intelligent Platforms, Inc.
+ * Copyright 2009-2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <init.h>
+#include <driver.h>
+#include <ns16550.h>
+#include <types.h>
+#include <partition.h>
+#include <memory.h>
+#include <asm/mmu.h>
+#include <asm/cache.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_law.h>
+#include <asm/io.h>
+#include <mach/immap_85xx.h>
+#include <mach/mp.h>
+#include <mach/clocks.h>
+#include <mach/early_udelay.h>
+
+#define VSC7385_RST_SET		0x00080000
+#define SLIC_RST_SET		0x00040000
+#define SGMII_PHY_RST_SET	0x00020000
+#define PCIE_RST_SET		0x00010000
+#define RGMII_PHY_RST_SET	0x02000000
+
+#define USB_RST_CLR		0x04000000
+
+
+#define GPIO_DIR		0x060f0000
+
+#define BOARD_PERI_RST_SET	(VSC7385_RST_SET | SLIC_RST_SET | \
+				SGMII_PHY_RST_SET | PCIE_RST_SET | \
+				RGMII_PHY_RST_SET)
+
+#define SYSCLK_MASK	0x00200000
+#define BOARDREV_MASK	0x10100000
+#define BOARDREV_B	0x10100000
+#define BOARDREV_C	0x00100000
+#define BOARDREV_D	0x00000000
+
+#define SYSCLK_66	66666666
+#define SYSCLK_50	50000000
+#define SYSCLK_100	100000000
+
+static int devices_init(void)
+{
+	add_cfi_flash_device(-1, CFG_FLASH_BASE, 16 << 20, 0);
+
+	devfs_add_partition("nor0", 0xf80000, 0x80000, PARTITION_FIXED,
+			    "self0");
+	return 0;
+}
+
+device_initcall(devices_init);
+
+static struct NS16550_plat serial_plat = {
+	.clock = 0,
+	.shift = 0,
+};
+
+static int p2020_console_init(void)
+{
+	serial_plat.clock = get_bus_freq(0);
+
+	add_ns16550_device(-1, 0xffe04500, 16, IORESOURCE_MEM_8BIT,
+			   &serial_plat);
+	return 0;
+}
+
+console_initcall(p2020_console_init);
+
+static int mem_init(void)
+{
+	barebox_add_memory_bank("ram0", 0x0, 1024 << 20);
+
+	return 0;
+}
+mem_initcall(mem_init);
+
+/*
+ * fixed_sdram: fixed sdram settings.
+ *
+ * This function is used for debugging purpose and in case there is
+ * a failure with the SPD.
+ */
+phys_size_t fixed_sdram(void)
+{
+	void __iomem *regs = (void __iomem *)(MPC85xx_DDR_ADDR);
+	int sdram_cfg = (SDRAM_CFG_MEM_EN | SDRAM_CFG_SREN |
+			 SDRAM_CFG_SDRAM_TYPE_DDR2);
+	phys_size_t dram_size;
+
+	/* If already enabled (running from RAM), get out */
+	if (in_be32(regs + DDR_OFF(SDRAM_CFG)) & SDRAM_CFG_MEM_EN)
+		return get_effective_memsize();
+
+	out_be32(regs + DDR_OFF(CS0_BNDS), CFG_SYS_DDR_CS0_BNDS);
+	out_be32(regs + DDR_OFF(CS0_CONFIG), CFG_SYS_DDR_CS0_CONFIG);
+	out_be32(regs + DDR_OFF(TIMING_CFG_3), CFG_SYS_DDR_TIMING_3);
+	out_be32(regs + DDR_OFF(TIMING_CFG_0), CFG_SYS_DDR_TIMING_0);
+	out_be32(regs + DDR_OFF(TIMING_CFG_1), CFG_SYS_DDR_TIMING_1);
+	out_be32(regs + DDR_OFF(TIMING_CFG_2), CFG_SYS_DDR_TIMING_2);
+	out_be32(regs + DDR_OFF(SDRAM_CFG_2), CFG_SYS_DDR_CONTROL2);
+	out_be32(regs + DDR_OFF(SDRAM_MODE), CFG_SYS_DDR_MODE_1);
+	out_be32(regs + DDR_OFF(SDRAM_MODE_2), CFG_SYS_DDR_MODE_2);
+	out_be32(regs + DDR_OFF(SDRAM_MD_CNTL), CFG_SYS_MD_CNTL);
+	/* Basic refresh rate (7.8us),high temp is 3.9us  */
+	out_be32(regs + DDR_OFF(SDRAM_INTERVAL),
+			CFG_SYS_DDR_INTERVAL);
+	out_be32(regs + DDR_OFF(SDRAM_DATA_INIT),
+			CFG_SYS_DDR_DATA_INIT);
+	out_be32(regs + DDR_OFF(SDRAM_CLK_CNTL),
+			CFG_SYS_DDR_CLK_CTRL);
+
+	out_be32(regs + DDR_OFF(SDRAM_INIT_ADDR), 0);
+	out_be32(regs + DDR_OFF(SDRAM_INIT_ADDR_EXT), 0);
+	/*
+	 * Wait 200us for the DDR clock to stabilize.
+	 */
+	early_udelay(200);
+	asm volatile ("sync;isync");
+
+	out_be32(regs + DDR_OFF(SDRAM_CFG), sdram_cfg);
+
+	dram_size = get_effective_memsize();
+	if (set_ddr_laws(0, dram_size, LAW_TRGT_IF_DDR) < 0)
+		return 0;
+
+	return dram_size;
+}
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+	u32 val_gpdat, sysclk_gpio, board_rev_gpio;
+	void __iomem *gpio_regs = (void __iomem *)MPC85xx_GPIO_ADDR;
+
+	val_gpdat = in_be32(gpio_regs + MPC85xx_GPIO_GPDAT);
+	sysclk_gpio = val_gpdat & SYSCLK_MASK;
+	board_rev_gpio = val_gpdat & BOARDREV_MASK;
+
+	if (board_rev_gpio == BOARDREV_C) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_100;
+	} else if (board_rev_gpio == BOARDREV_B) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_50;
+	} else if (board_rev_gpio == BOARDREV_D) {
+		if (sysclk_gpio == 0)
+			return SYSCLK_66;
+		else
+			return SYSCLK_100;
+	}
+	return 0;
+}
+
+static void checkboard(void)
+{
+	u32 val_gpdat, board_rev_gpio;
+	void __iomem *gpio_regs = (void __iomem *)MPC85xx_GPIO_ADDR;
+
+	val_gpdat = in_be32(gpio_regs + MPC85xx_GPIO_GPDAT);
+	board_rev_gpio = val_gpdat & BOARDREV_MASK;
+
+	if ((board_rev_gpio != BOARDREV_C) && (board_rev_gpio != BOARDREV_B) &&
+	    (board_rev_gpio != BOARDREV_D))
+		panic("Unexpected Board REV %x detected!!\n", board_rev_gpio);
+
+	setbits_be32((gpio_regs + MPC85xx_GPIO_GPDIR), GPIO_DIR);
+
+	/*
+	 * Bringing the following peripherals out of reset via GPIOs
+	 * 0 = reset and 1 = out of reset
+	 * GPIO12 - Reset to Ethernet Switch
+	 * GPIO13 - Reset to SLIC/SLAC devices
+	 * GPIO14 - Reset to SGMII_PHY_N
+	 * GPIO15 - Reset to PCIe slots
+	 * GPIO6  - Reset to RGMII PHY
+	 * GPIO5  - Reset to USB3300 devices 1 = reset and 0 = out of reset
+	 */
+	clrsetbits_be32((gpio_regs + MPC85xx_GPIO_GPDAT), USB_RST_CLR,
+			BOARD_PERI_RST_SET);
+}
+
+static int board_init_r(void)
+{
+	const unsigned int flashbase = CFG_FLASH_BASE;
+	const u8 flash_esel = find_tlb_idx((void *)flashbase, 1);
+
+	checkboard();
+
+	/* Flush d-cache and invalidate i-cache of any FLASH data */
+	flush_dcache();
+	invalidate_icache();
+
+	/* invalidate existing TLB entry for flash */
+	disable_tlb(flash_esel);
+
+	/*
+	 * Remap Boot flash region to caching-inhibited
+	 * so that flash can be erased properly.
+	 */
+	set_tlb(1, flashbase, CFG_FLASH_BASE_PHYS,
+		MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+		0, flash_esel, BOOKE_PAGESZ_16M, 1);
+
+	l2_cache_init();
+
+	setup_mp();
+
+	return 0;
+}
+core_initcall(board_init_r);
diff --git a/arch/ppc/boards/freescale-p2020rdb/tlb.c b/arch/ppc/boards/freescale-p2020rdb/tlb.c
new file mode 100644
index 0000000..037f429
--- /dev/null
+++ b/arch/ppc/boards/freescale-p2020rdb/tlb.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/mmu.h>
+
+struct fsl_e_tlb_entry tlb_table[] = {
+	/* TLB 0 - for temp stack in cache */
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR, CFG_INIT_RAM_ADDR,
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (4 * 1024),
+			CFG_INIT_RAM_ADDR + (4 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (8 * 1024),
+			CFG_INIT_RAM_ADDR + (8 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+	SET_TLB_ENTRY(0, CFG_INIT_RAM_ADDR + (12 * 1024),
+			CFG_INIT_RAM_ADDR + (12 * 1024),
+			MAS3_SX|MAS3_SW|MAS3_SR, 0,
+			0, 0, BOOKE_PAGESZ_4K, 0),
+
+	/* TLB 1 */
+	/* *I*** - Covers boot page */
+	SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 0, BOOKE_PAGESZ_4K, 1),
+
+	/* *I*G* - CCSRBAR */
+	SET_TLB_ENTRY(1, CFG_CCSRBAR, CFG_CCSRBAR_PHYS,
+			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
+			0, 1, BOOKE_PAGESZ_1M, 1),
+
+	/* W**G* - Flash/promjet, localbus */
+	/* This will be changed to *I*G* after relocation to RAM. */
+	SET_TLB_ENTRY(1, CFG_FLASH_BASE, CFG_FLASH_BASE_PHYS,
+			MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
+			0, 2, BOOKE_PAGESZ_16M, 1),
+};
+
+int num_tlb_entries = ARRAY_SIZE(tlb_table);
diff --git a/arch/ppc/configs/p2020rdb_defconfig b/arch/ppc/configs/p2020rdb_defconfig
new file mode 100644
index 0000000..f8a0687
--- /dev/null
+++ b/arch/ppc/configs/p2020rdb_defconfig
@@ -0,0 +1,23 @@
+CONFIG_ARCH_MPC85XX=y
+CONFIG_P2020RDB=y
+CONFIG_P2020=y
+CONFIG_LONGHELP=y
+CONFIG_GLOB=y
+CONFIG_CMDLINE_EDITING=y
+CONFIG_AUTO_COMPLETE=y
+CONFIG_CMD_SLEEP=y
+CONFIG_CMD_FLASH=y
+CONFIG_CMD_RESET=y
+CONFIG_CMD_GO=y
+CONFIG_FSL_ELBC=y
+CONFIG_DRIVER_CFI=y
+CONFIG_DRIVER_CFI_AMD=y
+CONFIG_DRIVER_CFI_INTEL=n
+CONFIG_DRIVER_CFI_BANK_WIDTH_1=n
+CONFIG_DRIVER_CFI_BANK_WIDTH_2=y
+CONFIG_DRIVER_CFI_BANK_WIDTH_4=n
+CONFIG_MTD=y
+CONFIG_MALLOC_SIZE=0x200000
+CONFIG_BAUDRATE=115200
+CONFIG_DRIVER_SERIAL_NS16550=y
+CONFIG_RELOCATABLE=y
-- 
1.7.1


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^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH V3 1/3] Preparation stage to support multiple PPC architectures
  2012-04-20  9:21   ` [PATCH V3 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
@ 2012-04-23  7:15     ` Sascha Hauer
  0 siblings, 0 replies; 11+ messages in thread
From: Sascha Hauer @ 2012-04-23  7:15 UTC (permalink / raw)
  To: Renaud Barbier; +Cc: barebox

On Fri, Apr 20, 2012 at 10:21:29AM +0100, Renaud Barbier wrote:
> arch/ppc/Kconfig is reworked to make the configuration environment
> architecture neutral. All MPC5200 configuration is moved to the
> MPC5200 architecture specific configuration file. These modifications
> are reflected in the PCM030 board support.
> 
> arch/ppc/Makefile compilation directives are updated in preparation
> for the introduction of future cpus/machines.
> 
> lib/time.c is moved to an architecture specific version and the
> building instructions updated in the Makefile. The file
> now named time-mpc5200.c is cleaned up of unused code.
> 
> The definition of L1_CACHE_... is updated and CACHELINE_SIZE is
> defined in ppc/include/asm/cache.h for future use by the mpc85xx.
> The file mach-mpc5xxx/pci_mpc5200.c and mach-mpc5xxx/start.S are
> updated accordingly.
> 
> The declaration of search_exception_table is moved in
> include/asm/common.h because it is used across architectures.
> mach-mpc5xxx/traps.c is also updated to reflect this change.
> 
> Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
> ---
>  arch/ppc/Kconfig                        |   42 +++---------------------------
>  arch/ppc/Makefile                       |   19 ++++++++-----
>  arch/ppc/configs/pcm030_defconfig       |    3 ++
>  arch/ppc/include/asm/cache.h            |   17 +++++-------
>  arch/ppc/include/asm/common.h           |    1 +
>  arch/ppc/lib/Makefile                   |    2 +-
>  arch/ppc/lib/{time.c => time-mpc5200.c} |   27 ++-----------------

Since this function will be mpc5xxx only can you move it to
mach-mpc5xxx/time.c please?

Otherwise this patch looks fine, I'll apply it once this one is fixed.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread

* Re: [PATCH V3 2/3] Minimal support of the MPC85xx architecture
  2012-04-20  9:21   ` [PATCH V3 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
@ 2012-04-23  8:13     ` Sascha Hauer
  0 siblings, 0 replies; 11+ messages in thread
From: Sascha Hauer @ 2012-04-23  8:13 UTC (permalink / raw)
  To: Renaud Barbier; +Cc: barebox

On Fri, Apr 20, 2012 at 10:21:30AM +0100, Renaud Barbier wrote:
> The directories cpu-85xx and mach-mpc85xx contain a minimal CPU support
> suitable for the P2020RDB board. This includes startup code for the CPU,
> peripherals and clock source initialization as well as header files
> and updates to configuration and build files.
> 
> Also the introduction of the new CPU architecture and board support
> leads to the update of existing header files. Are added:
>  - functions and macros to manipulate bits of registers field values.
>  - external declaration of cache handling functions to prevent
>    compilation warnings.
>  - new processor definitions.
>  - macros (in replacement of existing definitions) to set 85xx TLB
>    registers.

Could you seperate the update of the existing header files to some extra
patches? This would ease the review.
Generally smaller patches would be much easier to swallow.

>  arch/ppc/lib/Makefile                             |    2 +
>  arch/ppc/lib/board.c                              |   11 +-
>  arch/ppc/lib/reloc.S                              |   47 +
>  arch/ppc/lib/time-mpc85xx.c                       |   54 +

As suggested in 1/3 this should also be in arch/ppc/mach-mpc85xx.

>  arch/ppc/mach-mpc85xx/Kconfig                     |   45 +
>  arch/ppc/mach-mpc85xx/Makefile                    |    5 +
>  arch/ppc/mach-mpc85xx/cpuid.c                     |   69 ++
>  arch/ppc/mach-mpc85xx/fsl_law.c                   |  156 +++
>  arch/ppc/mach-mpc85xx/fsl_lbc.c                   |   17 +
>  arch/ppc/mach-mpc85xx/include/mach/clocks.h       |   11 +
>  arch/ppc/mach-mpc85xx/include/mach/early_udelay.h |   33 +
>  arch/ppc/mach-mpc85xx/include/mach/immap_85xx.h   |  132 +++
>  arch/ppc/mach-mpc85xx/include/mach/mp.h           |   15 +
>  arch/ppc/mach-mpc85xx/include/mach/mpc85xx.h      |   17 +
>  arch/ppc/mach-mpc85xx/include/mach/ppc_asm.tmpl   |  208 ++++

U-Boot only has one ppc_asm.tmpl. Can we share this aswell?

>  arch/ppc/mach-mpc85xx/mp.c                        |  156 +++
>  arch/ppc/mach-mpc85xx/speed.c                     |   97 ++
>  include/linux/types.h                             |    2 +
> +
> +#include <config.h>
> +#include <asm/config_mpc85xx.h>
> +#include <mach/mpc85xx.h>
> +
> +#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/

This seems unnecessary.

> diff --git a/arch/ppc/include/asm/global_data.h b/arch/ppc/include/asm/global_data.h
> new file mode 100644
> index 0000000..8c1a975
> --- /dev/null
> +++ b/arch/ppc/include/asm/global_data.h
> @@ -0,0 +1,56 @@
> +/*
> + * Copyright 2012 GE Intelligent Platforms, Inc.
> + * (C) Copyright 2002-2010
> + * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#ifndef	__ASM_GBL_DATA_H
> +#define __ASM_GBL_DATA_H
> +
> +#include "config.h"
> +#include "asm/types.h"
> +
> +/*
> + * The following data structure is placed in some memory wich is
> + * available very early after boot (some locked parts of the data cache)
> + * to allow for a minimum set of global variables during system initialization
> + * (until we have set * up the memory controller so that we can use RAM).
> + */
> +
> +struct	global_data {
> +	unsigned long	flags;
> +	unsigned long	baudrate;
> +	unsigned long	cpu_clk;	/* CPU clock in Hz! */
> +	unsigned long	bus_clk;
> +	unsigned long	mem_clk;
> +	u32 lbc_clk;
> +	void *cpu;
> +	u32 i2c1_clk;
> +	u32 i2c2_clk;
> +	u32 used_laws;
> +	u32 used_tlb_cams[(NUM_TLBCAMS+31)/32];
> +	phys_size_t	ram_size;
> +	unsigned long	board_type;
> +};

This struct should not exist. Most fields are unused anyway, only
used_laws and used_tlb_cams are used. These two fields are used in a
single file only, so no need to put them somewhere globally.

> +
> +#define DECLARE_GLOBAL_DATA_PTR		register struct global_data \
> +					*gd asm ("r2")

With the above struct removed you can also remove this one and with it
the -ffixed-r2 compiler option to help gcc to generate a slightly more
efficient code.


> +++ b/arch/ppc/mach-mpc85xx/include/mach/early_udelay.h
> @@ -0,0 +1,33 @@
> +/*
> + * Copyright (C) 2009 Matthias Kaehlcke <matthias@kaehlcke.net>
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#include <common.h>
> +
> +/* delay execution before timers are initialized */
> +static inline void early_udelay(uint32_t usecs)
> +{
> +	/* loop takes 4 cycles. */
> +	 uint32_t loops = usecs * (1000 / 4); /* CPU freq = 1Ghz */
> +
> +	while (loops)
> +		loops--;
> +}

Are you sure this works? without loops being volatile gcc can optimize
the whole loop away.

Sascha
-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2012-04-23  8:13 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-04-13 13:04 [PATCH V2 0/3] MPC85xx support Renaud Barbier
2012-04-13 13:04 ` [PATCH V2 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
2012-04-13 13:04 ` [PATCH V2 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
2012-04-13 13:04 ` [PATCH V2 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier
2012-04-15 14:59 ` [PATCH V2 0/3] MPC85xx support Sascha Hauer
2012-04-20  9:21   ` [PATCH V3 " Renaud Barbier
2012-04-20  9:21   ` [PATCH V3 1/3] Preparation stage to support multiple PPC architectures Renaud Barbier
2012-04-23  7:15     ` Sascha Hauer
2012-04-20  9:21   ` [PATCH V3 2/3] Minimal support of the MPC85xx architecture Renaud Barbier
2012-04-23  8:13     ` Sascha Hauer
2012-04-20  9:21   ` [PATCH V3 3/3] Minimal P2020RDB platform support and configuration file Renaud Barbier

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