f05131cd7a
Instead of remembering to specify DTB= on the make commandline, this commit allows the much friendlier make simpleImage.<dts> where <dts>.dts is expected to be found in arch/microblaze/boot/dts/ The resulting vmlinux, with the compiled DTS linked in, will be copied to boot/simpleImage.<dts> This mirrors the same functionality as on PowerPC, albeit achieving it in a slightly different way. + strip simpleImage file The size of output file is very similar to linux.bin. vmlinux - full elf without fdt blob simpleImage.<dtb name>.unstrip - full elf with fdt blob simpleImage.<dtb name> - stripped elf with fdt blob Add symlink to generic system.dts in platform folder Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
57 lines
1.4 KiB
Makefile
57 lines
1.4 KiB
Makefile
#
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# arch/microblaze/boot/Makefile
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#
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obj-y += linked_dtb.o
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targets := linux.bin linux.bin.gz simpleImage.%
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OBJCOPYFLAGS_linux.bin := -O binary
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# Where the DTS files live
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dtstree := $(srctree)/$(src)/dts
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# Ensure system.dtb exists
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$(obj)/linked_dtb.o: $(obj)/system.dtb
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# Generate system.dtb from $(DTB).dtb
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ifneq ($(DTB),system)
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$(obj)/system.dtb: $(obj)/$(DTB).dtb
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$(call if_changed,cp)
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endif
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$(obj)/linux.bin: vmlinux FORCE
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[ -n $(CONFIG_INITRAMFS_SOURCE) ] && [ ! -e $(CONFIG_INITRAMFS_SOURCE) ] && \
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touch $(CONFIG_INITRAMFS_SOURCE) || echo "No CPIO image"
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$(call if_changed,objcopy)
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@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
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$(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
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$(call if_changed,gzip)
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@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
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quiet_cmd_cp = CP $< $@$2
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cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) -K _start -K _end -K __log_buf -K _fdt_start vmlinux -o $@
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$(obj)/simpleImage.%: vmlinux FORCE
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$(call if_changed,cp,.unstrip)
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$(call if_changed,strip)
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@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
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# Rule to build device tree blobs
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DTC = $(objtree)/scripts/dtc/dtc
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# Rule to build device tree blobs
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quiet_cmd_dtc = DTC $@
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cmd_dtc = $(DTC) -O dtb -o $(obj)/$*.dtb -b 0 -p 1024 $(dtstree)/$*.dts
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$(obj)/%.dtb: $(dtstree)/%.dts FORCE
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$(call if_changed,dtc)
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clean-kernel += linux.bin linux.bin.gz simpleImage.*
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clean-files += *.dtb
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