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microblaze: support U-BOOT image format

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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: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-10-14 17:38:26 +02:00
parent a01523cdcd
commit 6a8dfe1cac
1 changed files with 13 additions and 2 deletions
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15
arch/microblaze/boot/Makefile
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@ -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