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Blackfin: support embedding the environment into loader files (LDRs)

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For the most part, the Blackfin processor boots files in the LDR format
rather than binary/ELF files.  So we want to export the environment as a
raw blob to the LDR utility so it can embed it at the right location.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2008-10-06 04:42:33 -04:00
parent 31f30c9eb6
commit 67c2829b64
2 changed files with 8 additions and 0 deletions
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1
Makefile
View File

@ -323,6 +323,7 @@ $(obj)u-boot.bin: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
$(obj)u-boot.ldr: $(obj)u-boot $(obj)u-boot.ldr: $(obj)u-boot
$(obj)tools/envcrc --binary > $(obj)env-ldr.o
$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
$(obj)u-boot.ldr.hex: $(obj)u-boot.ldr $(obj)u-boot.ldr.hex: $(obj)u-boot.ldr

7
blackfin_config.mk
View File

@ -23,6 +23,8 @@
CONFIG_BFIN_CPU := $(strip $(subst ",,$(CONFIG_BFIN_CPU))) CONFIG_BFIN_CPU := $(strip $(subst ",,$(CONFIG_BFIN_CPU)))
CONFIG_BFIN_BOOT_MODE := $(strip $(subst ",,$(CONFIG_BFIN_BOOT_MODE))) CONFIG_BFIN_BOOT_MODE := $(strip $(subst ",,$(CONFIG_BFIN_BOOT_MODE)))
CONFIG_ENV_OFFSET := $(strip $(subst ",,$(CONFIG_ENV_OFFSET)))
CONFIG_ENV_SIZE := $(strip $(subst ",,$(CONFIG_ENV_SIZE)))
PLATFORM_RELFLAGS += -ffixed-P5 -fomit-frame-pointer -mno-fdpic PLATFORM_RELFLAGS += -ffixed-P5 -fomit-frame-pointer -mno-fdpic
PLATFORM_CPPFLAGS += -DCONFIG_BLACKFIN PLATFORM_CPPFLAGS += -DCONFIG_BLACKFIN
@ -43,6 +45,11 @@ LDR_FLAGS += --bmode $(subst BFIN_BOOT_,,$(CONFIG_BFIN_BOOT_MODE))
LDR_FLAGS += --use-vmas LDR_FLAGS += --use-vmas
ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS) ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
LDR_FLAGS += --initcode $(obj)cpu/$(CPU)/initcode.o LDR_FLAGS += --initcode $(obj)cpu/$(CPU)/initcode.o
ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_UART)
ifneq ($(ENV_IS_EMBEDDED_CUSTOM),ENV_IS_EMBEDDED_CUSTOM)
LDR_FLAGS += --punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):$(obj)env-ldr.o
endif
endif
endif endif
ifneq (,$(findstring s,$(MAKEFLAGS))) ifneq (,$(findstring s,$(MAKEFLAGS)))
LDR_FLAGS += --quiet LDR_FLAGS += --quiet