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fdt: Add support for a separate device tree (CONFIG_OF_SEPARATE)

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This adds support for an FDT to be build as a separate binary file called
u-boot.dtb. This can be concatenated with the U-Boot binary to provide a
device tree located at run-time by U-Boot. The Makefile is modified to
provide this file in u-boot-dtb.bin.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2011-10-24 19:15:31 +00:00
committed by Wolfgang Denk
parent bbb0b128c3
commit 2c0f79e44b
3 changed files with 23 additions and 2 deletions
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8
Makefile
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@@ -359,9 +359,17 @@ ALL-$(CONFIG_ONENAND_U_BOOT) += $(obj)u-boot-onenand.bin
ONENAND_BIN ?= $(obj)onenand_ipl/onenand-ipl-2k.bin
ALL-$(CONFIG_MMC_U_BOOT) += $(obj)mmc_spl/u-boot-mmc-spl.bin
ALL-$(CONFIG_SPL) += $(obj)spl/u-boot-spl.bin
ALL-$(CONFIG_OF_SEPARATE) += $(obj)u-boot.dtb $(obj)u-boot-dtb.bin
all: $(ALL-y) $(SUBDIR_EXAMPLES)
$(obj)u-boot.dtb: $(obj)u-boot
$(MAKE) -C dts binary
mv $(obj)dts/dt.dtb $@
$(obj)u-boot-dtb.bin: $(obj)u-boot.bin $(obj)u-boot.dtb
cat $^ >$@
$(obj)u-boot.hex: $(obj)u-boot
$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@