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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH v5 36/54] Add builtin firmware support
Date: Tue, 12 Jun 2018 13:52:52 -0700	[thread overview]
Message-ID: <20180612205310.25745-37-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20180612205310.25745-1-andrew.smirnov@gmail.com>

From: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[andrew.smirnov@gmail.com: Add dummy.o in case directory is empty]
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 Makefile           |  2 +-
 arch/arm/Kconfig   |  1 +
 firmware/Kconfig   |  7 ++++++
 firmware/Makefile  | 55 ++++++++++++++++++++++++++++++++++++++++++++++
 include/firmware.h |  8 +++++++
 5 files changed, 72 insertions(+), 1 deletion(-)
 create mode 100644 firmware/Kconfig
 create mode 100644 firmware/Makefile

diff --git a/Makefile b/Makefile
index 88c199173..b335f2054 100644
--- a/Makefile
+++ b/Makefile
@@ -426,7 +426,7 @@ scripts: scripts_basic include/config/auto.conf
 	$(Q)$(MAKE) $(build)=$(@)
 
 # Objects we will link into barebox / subdirs we need to visit
-common-y		:= common/ drivers/ commands/ lib/ crypto/ net/ fs/
+common-y		:= common/ drivers/ commands/ lib/ crypto/ net/ fs/ firmware/
 
 ifeq ($(dot-config),1)
 # Read in config
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 37cde0c0c..bd736284f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -414,3 +414,4 @@ source drivers/Kconfig
 source fs/Kconfig
 source lib/Kconfig
 source crypto/Kconfig
+source firmware/Kconfig
diff --git a/firmware/Kconfig b/firmware/Kconfig
new file mode 100644
index 000000000..e0cc7abef
--- /dev/null
+++ b/firmware/Kconfig
@@ -0,0 +1,7 @@
+menu "Firmware files"
+
+config EXTRA_FIRMWARE_DIR
+	string "Firmware blobs root directory"
+	default "firmware"
+
+endmenu
diff --git a/firmware/Makefile b/firmware/Makefile
new file mode 100644
index 000000000..b4074ca4f
--- /dev/null
+++ b/firmware/Makefile
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# kbuild file for firmware/
+#
+
+# Create $(fwabs) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
+# leading /, it's relative to $(srctree).
+fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR))
+fwabs := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
+
+fw-external-y := $(firmware-y)
+
+quiet_cmd_fwbin = MK_FW   $@
+      cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)";		     \
+		  FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst	     \
+				firmware/%.gen.S,%,$@))))";		     \
+		  ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long);		     \
+		  ASM_ALIGN=$(if $(CONFIG_64BIT),3,2);			     \
+		  PROGBITS=$(if $(CONFIG_ARM),%,@)progbits;		     \
+		  echo "/* Generated by firmware/Makefile */"		> $@;\
+		  echo "    .section .rodata.$${FWSTR}"			>>$@;\
+		  echo "    .p2align $${ASM_ALIGN}"			>>$@;\
+		  echo ".global _fw_$${FWSTR}_start"			>>$@;\
+		  echo "_fw_$${FWSTR}_start:"				>>$@;\
+		  echo "    .incbin \"$(2)\""				>>$@;\
+		  echo ".global _fw_$${FWSTR}_end"			>>$@;\
+		  echo "_fw_$${FWSTR}_end:"				>>$@;
+
+# One of these files will change, or come into existence, whenever
+# the configuration changes between 32-bit and 64-bit. The .S files
+# need to change when that happens.
+wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h)
+
+$(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
+		include/config/extra/firmware/dir.h
+	$(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
+
+# The .o files depend on the binaries directly; the .S files don't.
+$(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/%
+
+obj-pbl-y			 += $(patsubst %,%.gen.o, $(fw-external-y))
+
+ifeq ($(KBUILD_SRC),)
+# Makefile.build only creates subdirectories for O= builds, but external
+# firmware might live outside the kernel source tree
+_dummy := $(foreach d,$(addprefix $(obj)/,$(dir $(fw-external-y))), $(shell [ -d $(d) ] || mkdir -p $(d)))
+endif
+
+targets := $(patsubst $(obj)/%,%, \
+                                $(shell find $(obj) -name \*.gen.S 2>/dev/null))
+
+# just to build a built-in.o. Otherwise compilation fails when no devicetree is
+# created.
+obj- += dummy.o
+
diff --git a/include/firmware.h b/include/firmware.h
index f6f78c840..284e0f970 100644
--- a/include/firmware.h
+++ b/include/firmware.h
@@ -39,4 +39,12 @@ void firmwaremgr_list_handlers(void);
 
 int firmwaremgr_load_file(struct firmware_mgr *, const char *path);
 
+#define get_builtin_firmware(name, start, size) \
+	{							\
+		extern char _fw_##name##_start[];		\
+		extern char _fw_##name##_end[];			\
+		*start = (typeof(*start)) _fw_##name##_start;	\
+		*size = _fw_##name##_end - _fw_##name##_start;	\
+	}
+
 #endif /* FIRMWARE_H */
-- 
2.17.0


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  parent reply	other threads:[~2018-06-12 20:54 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-12 20:52 [PATCH v5 00/54] ARM: i.MX8MQ and EVK support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 01/54] ARM: i.MX: xload: Fix compiler warning Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 02/54] ARM: i.MX: compile arm32 specific errata only for CPU32 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 03/54] ARM: Add i.MX8 support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 04/54] aarch64: Add i.MX8 debug UART support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 05/54] Include our own include/dt-bindings Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 06/54] mci: imx-esdhc: use dma mapping functions Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 07/54] net: fec_imx: remove unnecessary DMA sync ops Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 08/54] net: fec_imx: Use dma mapping functions Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 09/54] net: fec_imx: Make use of IS_ALIGNED Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 10/54] clock: Add i.MX8MQ clock driver Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 11/54] serial: i.MX: Add i.MX8 support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 12/54] mmc: i.MX esdhc: " Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 13/54] gpio: i.MX: Add i.MX8mq support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 14/54] ARM: i.MX: ocotp: Add i.MX8MQ support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 15/54] ARM: i.MX: Split shared CCM code into a separate file Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 16/54] ARM: i.MX: Add IOMUX pad constants for i.MX8 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 17/54] ARM: i.MX: Add basic CCM " Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 18/54] ARM: Add constants and helpers for system counter interface Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 19/54] clocksource: armv8-timer: Convert explicit assembly into helpers Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 20/54] ARM: i.MX8: Initialize system counter Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 21/54] ARM: i.MX: boot: Fix address casting on 64-bit platforms Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 22/54] ARM: boot: Add trivial i.MX8 support Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 23/54] ARM: i.MX: xload-esdhc: Rework to make code be less i.MX6-specific Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 24/54] ARM: i.MX: xload-esdhc: Allow custom buffer address, device offset Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 25/54] ARM: i.MX: xload-esdhc: Add support for i.MX8 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 26/54] pinctrl: i.MX: " Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 27/54] Documentation: imx: Change block size for 'dd' to 1024 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 28/54] Documentation: i.MX: Add missing <soctype> Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 29/54] clocksource: armv8-timer: Make armv8_clocksource_read() static Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 30/54] clocksource: armv8-timer: Make use of postcore_platform_driver() Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 31/54] Port <linux/iopoll.h> from U-Boot Andrey Smirnov
2018-06-13  8:12   ` Sascha Hauer
2018-06-13 12:29     ` Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 32/54] common/clock: Move delay and timeout functions to lib/ Andrey Smirnov
2018-06-13  8:19   ` Sascha Hauer
2018-06-13 12:26     ` Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 33/54] clock: Use udelay() to implement mdelay() Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 34/54] ARM: i.MX8: Add DDRC PHY and DDR CTL base addresses Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 35/54] Kbuild: Add $(quote) Andrey Smirnov
2018-06-12 20:52 ` Andrey Smirnov [this message]
2018-06-12 20:52 ` [PATCH v5 37/54] ARM: i.MX8: Add DDRC PHY support code Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 38/54] ARM: Specify HAVE_PBL_IMAGE for CPU_64 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 39/54] ARM: lib64: Make string functions aware of MMU configuration Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 40/54] ARM: mmu: Make use of dsb() and isb() helpers Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 41/54] ARM: cache: Remove unused cache ops struct Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 42/54] ARM: no-mmu: Disable building for ARMv8 Andrey Smirnov
2018-06-12 20:52 ` [PATCH v5 43/54] ARM: interrupts64: Include ESR value in exception traceback Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 44/54] ARM: mmu64: Trivial code simplification Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 45/54] ARM: mmu64: Make use of create_table() Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 46/54] ARM: mmu64: Convert flags in arch_remap_range() Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 47/54] ARM: include: dma: Add missing no-MMU stubs Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 48/54] scripts: imx-image: Drop error return from write_dcd() Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 49/54] scripts: imx-image: Limit v2 header size to HEADER_LEN Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 50/54] scripts: imx-image: Use a loop to create multiple header copies Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 51/54] scripts: imx-image: Share the code to write barebox header Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 52/54] scripts: imx-image: Add i.MX8MQ support Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 53/54] ARM: i.MX8: Add i.MX8mq EVK support Andrey Smirnov
2018-06-13  8:49   ` Christian Hemp
2018-06-13 12:33     ` Andrey Smirnov
2018-06-12 20:53 ` [PATCH v5 54/54] ARM: Introduce imx_v8_defconfig Andrey Smirnov
2018-06-13  8:24 ` [PATCH v5 00/54] ARM: i.MX8MQ and EVK support Sascha Hauer
2018-06-13 12:29   ` Andrey Smirnov

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