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authorDavid Gibson <david@gibson.dropbear.id.au>2007-05-01 10:20:20 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-02 20:04:31 +1000
commita6afacb6b8ba3d2eed6406a018e604d6f9c0f97d (patch)
treea51e62feed1fc59f9379deb4a2d87cea960cceeb
parent0cd74f398a1b86eab9d56224f3469235b2097e3c (diff)
[POWERPC] Small cleanups to the cuboot bootwrapper code
This patch makes a few small cleanups to the cuboot code. - It removes the double layered selection of images, via cuboot-plat-y, instead having the cuboot platforms directly select a suitable image-y (this changes the name of the final cuboot image from plain cuImage to cuImage.<platform>). - Factors out some code in the wrapper that's potentially useful to platforms other than uboot. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/Makefile2
-rw-r--r--arch/powerpc/boot/Makefile15
-rwxr-xr-xarch/powerpc/boot/wrapper28
3 files changed, 20 insertions, 25 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 794992025d8..81a531d84ff 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -148,7 +148,7 @@ all: $(KBUILD_IMAGE)
CPPFLAGS_vmlinux.lds := -Upowerpc
-BOOT_TARGETS = zImage zImage.initrd uImage cuImage
+BOOT_TARGETS = zImage zImage.initrd uImage
PHONY += $(BOOT_TARGETS)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 3716594ea33..326ee92a2fc 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -129,7 +129,9 @@ image-$(CONFIG_PPC_CELLEB) += zImage.pseries
image-$(CONFIG_PPC_CHRP) += zImage.chrp
image-$(CONFIG_PPC_EFIKA) += zImage.chrp
image-$(CONFIG_PPC_PMAC) += zImage.pmac
-image-$(CONFIG_DEFAULT_UIMAGE) += uImage cuImage
+image-$(CONFIG_PPC_83xx) += cuImage.83xx
+image-$(CONFIG_PPC_85xx) += cuImage.85xx
+image-$(CONFIG_DEFAULT_UIMAGE) += uImage
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
@@ -162,15 +164,11 @@ $(obj)/zImage.initrd.ps3: vmlinux
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
-cuboot-plat-$(CONFIG_83xx) += 83xx
-cuboot-plat-$(CONFIG_85xx) += 85xx
-cuboot-plat-y += unknown-platform
-
dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE)
-$(obj)/cuImage: vmlinux $(wrapperbits)
- $(call if_changed,wrap,cuboot-$(word 1,$(cuboot-plat-y)),$(dts))
+$(obj)/cuImage.%: vmlinux $(wrapperbits)
+ $(call if_changed,wrap,cuboot-$*,$(dts))
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
@rm -f $@; ln $< $@
@@ -181,8 +179,7 @@ install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
# anything not in $(targets)
-clean-files += $(image-) $(initrd-) zImage zImage.initrd \
- cuImage.elf cuImage.bin.gz
+clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.*
# clean up files cached by wrapper
clean-kernel := vmlinux.strip vmlinux.bin
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 5cedd901201..1ea208096b1 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -163,20 +163,19 @@ fi
vmz="$vmz$gzip"
-case "$platform" in
-uboot|cuboot*)
- version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
- cut -d' ' -f3`
- if [ -n "$version" ]; then
- version="-n Linux-$version"
- fi
-esac
+# Extract kernel version information, some platforms want to include
+# it in the image header
+version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
+ cut -d' ' -f3`
+if [ -n "$version" ]; then
+ uboot_version="-n Linux-$version"
+fi
case "$platform" in
uboot)
rm -f "$ofile"
mkimage -A ppc -O linux -T kernel -C gzip -a 00000000 -e 00000000 \
- $version -d "$vmz" "$ofile"
+ $uboot_version -d "$vmz" "$ofile"
if [ -z "$cacheit" ]; then
rm -f "$vmz"
fi
@@ -212,25 +211,24 @@ if [ "$platform" != "miboot" ]; then
rm $tmp
fi
+# Some platforms need the zImage's entry point and base address
+base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
+entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
+
# post-processing needed for some platforms
case "$platform" in
pseries|chrp)
$object/addnote "$ofile"
;;
pmaccoff)
- entry=`objdump -f "$ofile" | grep '^start address ' | \
- cut -d' ' -f3`
${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
$object/hack-coff "$ofile"
;;
cuboot*)
- base=`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
- entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | \
- cut -d' ' -f3`
mv "$ofile" "$ofile".elf
${CROSS}objcopy -O binary "$ofile".elf "$ofile".bin
gzip -f -9 "$ofile".bin
mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
- $version -d "$ofile".bin.gz "$ofile"
+ $uboot_version -d "$ofile".bin.gz "$ofile"
;;
esac