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linux-2.6
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Blackfin: add support for bzip2/lzma compressed kernel images 

Since U-Boot can support these compression types, add appropriate targets
to the Blackfin boot files.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2009-06-07 03:47:01 -04:00
parent bac7d89ebe
commit 538067c822
4 changed files with 34 additions and 10 deletions
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3
arch/blackfin/Kconfig
View File

@ -20,6 +20,9 @@ config RWSEM_XCHGADD_ALGORITHM
config BLACKFIN
def_bool y
select HAVE_IDE
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZMA
select HAVE_OPROFILE
select ARCH_WANT_OPTIONAL_GPIOLIB

7
arch/blackfin/Makefile
View File

@ -137,7 +137,7 @@ archclean:
INSTALL_PATH ?= /tftpboot
boot := arch/$(ARCH)/boot
BOOT_TARGETS = vmImage
BOOT_TARGETS = vmImage vmImage.bz2 vmImage.gz vmImage.lzma
PHONY += $(BOOT_TARGETS) install
KBUILD_IMAGE := $(boot)/vmImage
@ -150,7 +150,10 @@ install:
$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
define archhelp
echo '* vmImage - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage)'
echo '* vmImage - Alias to selected kernel format (vmImage.gz by default)'
echo ' vmImage.bz2 - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.bz2)'
echo '* vmImage.gz - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.gz)'
echo ' vmImage.lzma - Kernel-only image for U-Boot (arch/$(ARCH)/boot/vmImage.lzma)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/$(CROSS_COMPILE)installkernel or'
echo ' (distribution) PATH: $(CROSS_COMPILE)installkernel or'

3
arch/blackfin/boot/.gitignore vendored
View File

@ -1 +1,2 @@
+vmImage
vmImage*
vmlinux*

31
arch/blackfin/boot/Makefile
View File

@ -8,24 +8,41 @@
MKIMAGE := $(srctree)/scripts/mkuboot.sh
targets := vmImage
extra-y += vmlinux.bin vmlinux.gz
targets := vmImage vmImage.bz2 vmImage.gz vmImage.lzma
extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma
quiet_cmd_uimage = UIMAGE $@
cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \
-C gzip -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
-C $(2) -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \
-e $(shell $(NM) vmlinux | awk '$$NF == "__start" {print $$1}') \
-d $< $@
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
$(call if_changed,gzip)
$(obj)/vmImage: $(obj)/vmlinux.gz
$(call if_changed,uimage)
@$(kecho) 'Kernel: $@ is ready'
$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
$(call if_changed,bzip2)
$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
$(call if_changed,lzma)
$(obj)/vmImage.bz2: $(obj)/vmlinux.bin.bz2
$(call if_changed,uimage,bzip2)
$(obj)/vmImage.gz: $(obj)/vmlinux.bin.gz
$(call if_changed,uimage,gzip)
$(obj)/vmImage.lzma: $(obj)/vmlinux.bin.lzma
$(call if_changed,uimage,lzma)
suffix-$(CONFIG_KERNEL_GZIP) := gz
suffix-$(CONFIG_KERNEL_BZIP2) := bz2
suffix-$(CONFIG_KERNEL_LZMA) := lzma
$(obj)/vmImage: $(obj)/vmImage.$(suffix-y)
@ln -sf $(notdir $<) $@
install:
sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"