From a6afacb6b8ba3d2eed6406a018e604d6f9c0f97d Mon Sep 17 00:00:00 2001
From: David Gibson <david@gibson.dropbear.id.au>
Date: Tue, 1 May 2007 10:20:20 +1000
Subject: [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>
---
 arch/powerpc/boot/wrapper | 28 +++++++++++++---------------
 1 file changed, 13 insertions(+), 15 deletions(-)

(limited to 'arch/powerpc/boot/wrapper')

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
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