[PATCH 01/10] serial: arm_dcc: depend on !CPU_V8

[PATCH 01/10] serial: arm_dcc: depend on !CPU_V8

[Lucas Stach]

The DCC console uses coprocessor registers registers accesses, the
implementation of those for ARMv8 is currently missing.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 drivers/serial/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 146bf1ec3c30..b112d7ee044a 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -2,7 +2,7 @@ menu "serial drivers"
 	depends on !CONSOLE_NONE
 
 config DRIVER_SERIAL_ARM_DCC
-	depends on ARM
+	depends on ARM && !CPU_V8
 	bool "ARM Debug Communications Channel (DCC) serial driver"
 
 config SERIAL_AMBA_PL011
-- 
2.9.3


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[PATCH 02/10] mfd: syscon: drop EXPORT_SYMBOL for static function

[Lucas Stach]

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 drivers/mfd/syscon.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mfd/syscon.c b/drivers/mfd/syscon.c
index 295e210f6e2d..6ef30ce1959e 100644
--- a/drivers/mfd/syscon.c
+++ b/drivers/mfd/syscon.c
@@ -76,8 +76,6 @@ static void __iomem *syscon_node_to_base(struct device_node *np)
 
 	return syscon->base;
 }
-EXPORT_SYMBOL_GPL(syscon_node_to_regmap);
-
 
 void __iomem *syscon_base_lookup_by_pdevname(const char *s)
 {
-- 
2.9.3


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[PATCH 03/10] video: tc358767: depend on EDID helpers

[Lucas Stach]

The eDP part need to be able to read the panel EDID.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 drivers/video/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 2457bb9e45f9..8f31f5af745e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -130,6 +130,7 @@ config DRIVER_VIDEO_MTL017
 config DRIVER_VIDEO_TC358767
 	bool "TC358767A Display Port encoder"
 	select VIDEO_VPL
+	depends on DRIVER_VIDEO_EDID
 	depends on I2C
 	depends on OFTREE
 	help
-- 
2.9.3


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[PATCH 04/10] arm64: select ARM_EXCEPTIONS

[Lucas Stach]

The current ARM64 lowlevel code needs the exception vector to set
up all the ELs. Select ARM_EXCEPTIONS to make sure this is always
present.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/cpu/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig
index 450a6d593a4b..9928120cc020 100644
--- a/arch/arm/cpu/Kconfig
+++ b/arch/arm/cpu/Kconfig
@@ -80,6 +80,7 @@ config CPU_V8
 	bool
 	select CPU_64v8
 	select CPU_SUPPORTS_64BIT_KERNEL
+	select ARM_EXCEPTIONS
 
 config CPU_XSC3
         bool
-- 
2.9.3


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[PATCH 05/10] arm(64): move HAS_DMA and HAS_MODULES to CPU_32

[Lucas Stach]

We don't yet have an implementation for those two features on ARM64, so move
them to a place where they are only selected for a 32bit barebox.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/Kconfig     | 2 --
 arch/arm/cpu/Kconfig | 2 ++
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 150320c6af86..cb121ab98dcb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,8 +1,6 @@
 config ARM
 	bool
 	select HAS_KALLSYMS
-	select HAS_MODULES
-	select HAS_DMA
 	select HAS_CACHE
 	select HAVE_CONFIGURABLE_TEXT_BASE
 	select HAVE_PBL_IMAGE
diff --git a/arch/arm/cpu/Kconfig b/arch/arm/cpu/Kconfig
index 9928120cc020..e45e05bdb19d 100644
--- a/arch/arm/cpu/Kconfig
+++ b/arch/arm/cpu/Kconfig
@@ -5,6 +5,8 @@ config PHYS_ADDR_T_64BIT
 
 config CPU_32
 	bool
+	select HAS_MODULES
+	select HAS_DMA
 
 config CPU_64
 	bool
-- 
2.9.3


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[PATCH 06/10] arm(64): don't advertise stack_dumping capabilities for ARM64

[Lucas Stach]

The unwind code to support this feature is not there yet.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/include/asm/barebox.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/include/asm/barebox.h b/arch/arm/include/asm/barebox.h
index 31a8e1563050..5a6622235b82 100644
--- a/arch/arm/include/asm/barebox.h
+++ b/arch/arm/include/asm/barebox.h
@@ -2,8 +2,10 @@
 #define _BAREBOX_H_	1
 
 #ifdef CONFIG_ARM_UNWIND
+#ifndef CONFIG_CPU_V8
 #define ARCH_HAS_STACK_DUMP
 #endif
+#endif
 
 #ifdef CONFIG_ARM_EXCEPTIONS
 #define ARCH_HAS_DATA_ABORT_MASK
-- 
2.9.3


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[PATCH 07/10] arm: semihosting support is not implemented for ARM64

[Lucas Stach]

Don't allow it to be selected in a ARM64 build.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cb121ab98dcb..07c5e2d6f590 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -376,6 +376,7 @@ config ARM_UNWIND
 
 config ARM_SEMIHOSTING
 	bool "enable ARM semihosting support"
+	depends on !CPU_V8
 	help
 	  This option enables ARM semihosting support in barebox. ARM
 	  semihosting is a communication discipline that allows code
-- 
2.9.3


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[PATCH 08/10] arm64: include correct setupc file in ARM64 PBL

[Lucas Stach]

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/cpu/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/Makefile b/arch/arm/cpu/Makefile
index 331c1cd8bc8d..d8cb1871a60f 100644
--- a/arch/arm/cpu/Makefile
+++ b/arch/arm/cpu/Makefile
@@ -16,8 +16,10 @@ obj-y += start.o entry.o
 
 ifeq ($(CONFIG_CPU_64v8), y)
 obj-y += setupc_64.o
+pbl-y += setupc_64.o
 else
 obj-y += setupc.o
+pbl-y += setupc.o
 endif
 
 #
@@ -48,7 +50,7 @@ obj-$(CONFIG_CPU_64v8) += cache-armv8.o
 AFLAGS_pbl-cache-armv8.o       :=-Wa,-march=armv8-a
 pbl-$(CONFIG_CPU_64v8) += cache-armv8.o
 
-pbl-y += setupc.o entry.o
+pbl-y += entry.o
 pbl-$(CONFIG_PBL_SINGLE_IMAGE) += start-pbl.o
 pbl-$(CONFIG_PBL_MULTI_IMAGES) += uncompress.o
 
-- 
2.9.3


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[PATCH 09/10] arm64: drop unneeded files from Makefile

[Lucas Stach]

ARM64 has native instructions for division and thus doesn't need the
helper functions implemented in those files.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 arch/arm/lib64/Makefile | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/lib64/Makefile b/arch/arm/lib64/Makefile
index 87e26f6afab2..4b7b7e3cc5e3 100644
--- a/arch/arm/lib64/Makefile
+++ b/arch/arm/lib64/Makefile
@@ -4,6 +4,4 @@ obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS)	+= memcpy.o
 obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS)	+= memset.o
 extra-y += barebox.lds
 
-pbl-y	+= lib1funcs.o
-pbl-y	+= ashldi3.o
 pbl-y	+= div0.o
-- 
2.9.3


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[PATCH 10/10] arm64: don't allow to build relocatable image

[Lucas Stach]

The current ARM64 implementation is lacking the lowlevel functions
to do the relocation. Don't allow to select it.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
 common/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/Kconfig b/common/Kconfig
index cd3f6d0cb068..7869a531bf48 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -344,7 +344,7 @@ config KALLSYMS
 	  This is useful to print a nice backtrace when an exception occurs.
 
 config RELOCATABLE
-	depends on PPC || ARM
+	depends on PPC || (ARM && !CPU_V8)
 	bool "generate relocatable barebox binary"
 	help
 	  A non relocatable barebox binary will run at it's compiled in
-- 
2.9.3


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Re: [PATCH 01/10] serial: arm_dcc: depend on !CPU_V8

[Sascha Hauer]

On Fri, Sep 30, 2016 at 12:35:58PM +0200, Lucas Stach wrote:
> The DCC console uses coprocessor registers registers accesses, the
> implementation of those for ARMv8 is currently missing.
> 
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
>  drivers/serial/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks

Sascha


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