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Subject[PATCH 18/27] Blackfin: add support for bzip2/lzma compressed kernel images
Date
Since U-Boot can support these compression types, add appropriate targets
to the Blackfin boot files.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
arch/blackfin/Kconfig | 3 +++
arch/blackfin/Makefile | 7 +++++--
arch/blackfin/boot/.gitignore | 3 ++-
arch/blackfin/boot/Makefile | 31 ++++++++++++++++++++++++-------
4 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 2cf455a..6ae9a03 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -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

diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index d54c828..6f9533c 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -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'
diff --git a/arch/blackfin/boot/.gitignore b/arch/blackfin/boot/.gitignore
index 3ae0399..229e508 100644
--- a/arch/blackfin/boot/.gitignore
+++ b/arch/blackfin/boot/.gitignore
@@ -1 +1,2 @@
-+vmImage
+vmImage*
+vmlinux*
diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile
index e028d13..3ab6f23 100644
--- a/arch/blackfin/boot/Makefile
+++ b/arch/blackfin/boot/Makefile
@@ -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)"
--
1.6.3.1


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