mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-10-06 19:40:42 +09:00
e05e5de7fa
Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
69 lines
2.1 KiB
Makefile
69 lines
2.1 KiB
Makefile
CONFIG_NAND_SPL = y
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PAD_TO := 2048
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include $(TOPDIR)/config.mk
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nandobj := $(OBJTREE)/nand_spl/
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LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
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LSTSCRIPT= $(nandobj)/board/$(BOARDDIR)/u-boot.lst
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LDFLAGS := -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(LDFLAGS) \
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$(LDFLAGS_FINAL)
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AFLAGS += -DCONFIG_SPL_BUILD -DCONFIG_NAND_SPL
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CFLAGS += -DCONFIG_SPL_BUILD -DCONFIG_NAND_SPL
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SOBJS = start.o crt0.o lowlevel_init.o
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COBJS = nand_boot_fsl_nfc.o
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SRCS := $(SRCTREE)/nand_spl/nand_boot_fsl_nfc.c
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SRCS += $(SRCTREE)/arch/arm/cpu/arm1136/start.S
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SRCS += $(SRCTREE)/arch/arm/lib/crt0.S
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SRCS += $(SRCTREE)/board/freescale/mx31pdk/lowlevel_init.S
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OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
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__OBJS := $(SOBJS) $(COBJS)
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LNDIR := $(nandobj)board/$(BOARDDIR)
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ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin
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all: $(obj).depend $(ALL)
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$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl
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$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@
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$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl
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$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
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$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds
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cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
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-Map $(nandobj)u-boot-spl.map \
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-o $@
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# The following line expands into whole rule which generates $(LSTSCRIPT),
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# the file containing u-boots LG-array linker section. This is included into
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# $(LDSCRIPT). The function make_u_boot_list is defined in helper.mk file.
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$(eval $(call make_u_boot_list, $(LSTSCRIPT), $(OBJS)))
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$(nandobj)u-boot.lds: $(LDSCRIPT) $(LSTSCRIPT)
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$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -I$(nandobj)/board/$(BOARDDIR) \
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-ansi -D__ASSEMBLY__ -P - <$< >$@
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#########################################################################
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$(obj)%.o: $(SRCTREE)/arch/arm/cpu/arm1136/%.S
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$(CC) $(AFLAGS) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/arch/arm/lib/%.S
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$(CC) $(AFLAGS) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/board/freescale/mx31pdk/%.S
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$(CC) $(AFLAGS) -c -o $@ $<
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$(obj)%.o: $(SRCTREE)/nand_spl/%.c
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$(CC) $(CFLAGS) -c -o $@ $<
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# defines $(obj).depend target
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include $(SRCTREE)/rules.mk
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sinclude $(obj).depend
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#########################################################################
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