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Commit 6a8dfe1c authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: support U-BOOT image format 



Two version are generated.
linux.bin.ub which is created from linux.bin file
and
simpleImage.<dts>.ub which is created from stripped simpleImage.<dts> file

Load address and entry point is for microblaze first instruction
which is CONFIG_KERNEL_BASE_ADDR variable.

There is possible for simpleImage format parse _start symbol too.

simpleImage.<dts> is still stripped elf file

I cleared simpleImage.<dts>.unstrip file because there are so big.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent a01523cd

arch/microblaze/boot/Makefile

+13 −2
Original line number Diff line number Diff line
@@ -2,11 +2,13 @@ 
# arch/microblaze/boot/Makefile

#



MKIMAGE := $(srctree)/scripts/mkuboot.sh



obj-y += linked_dtb.o



targets := linux.bin linux.bin.gz simpleImage.%



OBJCOPYFLAGS_linux.bin  := -O binary

OBJCOPYFLAGS := -O binary



# Where the DTS files live

dtstree         := $(srctree)/$(src)/dts
@@ -24,6 +26,7 @@ $(obj)/linux.bin: vmlinux FORCE 
	[ -n $(CONFIG_INITRAMFS_SOURCE) ] && [ ! -e $(CONFIG_INITRAMFS_SOURCE) ] && \

	touch $(CONFIG_INITRAMFS_SOURCE) || echo "No CPIO image"

	$(call if_changed,objcopy)

	$(call if_changed,uimage)

	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'



$(obj)/linux.bin.gz: $(obj)/linux.bin FORCE
@@ -36,8 +39,16 @@ quiet_cmd_cp = CP $< $@$2 
quiet_cmd_strip = STRIP   $@

      cmd_strip = $(STRIP) -K _start -K _end -K __log_buf -K _fdt_start vmlinux -o $@



quiet_cmd_uimage = UIMAGE  $@.ub

      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A microblaze -O linux -T kernel \

                   -C none -n 'Linux-$(KERNELRELEASE)' \

                   -a $(CONFIG_KERNEL_BASE_ADDR) -e $(CONFIG_KERNEL_BASE_ADDR) \

                   -d $@ $@.ub



$(obj)/simpleImage.%: vmlinux FORCE

	$(call if_changed,cp,.unstrip)

	$(call if_changed,objcopy)

	$(call if_changed,uimage)

	$(call if_changed,strip)

	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
@@ -53,4 +64,4 @@ $(obj)/%.dtb: $(dtstree)/%.dts FORCE 


clean-kernel += linux.bin linux.bin.gz simpleImage.*



clean-files += *.dtb
 
clean-files += *.dtb simpleImage.*.unstrip