Makefile: add target to produce a SPL compatible uImage
This is mostly useful during the initial port of barebox to a new board which is supported by u-boot. It also allows starting barebox from a SRAM-based u-boot SPL. A different load address can be set like this: make barebox.uimage UIMAGE_BASE=0x80000000 Also add barebox.ubl to CLEAN_FILES. Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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@ -35,6 +35,7 @@ barebox.srec
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barebox.netx
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barebox.netx
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barebox.s5p
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barebox.s5p
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barebox.ubl
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barebox.ubl
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barebox.uimage
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barebox.map
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barebox.map
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System.map
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System.map
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Module.symvers
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Module.symvers
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19
Makefile
19
Makefile
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@ -680,6 +680,22 @@ ifndef CONFIG_PBL_IMAGE
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$(call cmd,check_file_size,$(CONFIG_BAREBOX_MAX_IMAGE_SIZE))
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$(call cmd,check_file_size,$(CONFIG_BAREBOX_MAX_IMAGE_SIZE))
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endif
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endif
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# By default the uImage load address is 2MB below CONFIG_TEXT_BASE,
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# leaving space for the compressed PBL image at 1MB below CONFIG_TEXT_BASE.
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UIMAGE_BASE ?= $(shell printf "0x%08x" $$(($(CONFIG_TEXT_BASE) - 0x200000)))
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# For development provide a target which makes barebox loadable by an
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# unmodified u-boot
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quiet_cmd_barebox_mkimage = MKIMAGE $@
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cmd_barebox_mkimage = $(srctree)/scripts/mkimage -A $(ARCH) -T firmware -C none \
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-O barebox -a $(UIMAGE_BASE) -e $(UIMAGE_BASE) \
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-n "barebox $(KERNELRELEASE)" -d $< $@
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# barebox.uimage is build from the raw barebox binary, without any other
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# headers.
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barebox.uimage: $(KBUILD_BINARY) FORCE
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$(call if_changed,barebox_mkimage)
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ifdef CONFIG_X86
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ifdef CONFIG_X86
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barebox.S: barebox
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barebox.S: barebox
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ifdef CONFIG_X86_HDBOOT
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ifdef CONFIG_X86_HDBOOT
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@ -1009,7 +1025,8 @@ CLEAN_FILES += barebox System.map include/generated/barebox_default_env.h \
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.tmp_version .tmp_barebox* barebox.bin barebox.map barebox.S \
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.tmp_version .tmp_barebox* barebox.bin barebox.map barebox.S \
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.tmp_kallsyms* barebox_default_env* barebox.ldr \
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.tmp_kallsyms* barebox_default_env* barebox.ldr \
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scripts/bareboxenv-target barebox-flash-image \
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scripts/bareboxenv-target barebox-flash-image \
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Doxyfile.version barebox.srec barebox.s5p
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Doxyfile.version barebox.srec barebox.s5p barebox.ubl \
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barebox.uimage
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# Directories & files removed with 'make mrproper'
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# Directories & files removed with 'make mrproper'
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MRPROPER_DIRS += include/config include2 usr/include
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MRPROPER_DIRS += include/config include2 usr/include
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