scripts: add a script for generating fwupgrade config for the OM2P board

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

SVN-Revision: 29396

scripts/om2p-fwupgradecfg-gen.sh

+#/bin/sh
+# 
+# Copyright (C) 2011 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+usage() {
+	echo "Usage: $0 <out file path> <kernel path> <rootfs path>"
+	rm -f $CFG_OUT
+	exit 1
+}
+
+[ "$#" -lt 3 ] && usage
+
+FLASH_BS=262144
+CHECK_BS=65536
+MAX_PART_SIZE=7168
+CFG_OUT=$1
+
+KERNEL_PATH=$2
+KERNEL_FLASH_ADDR=0x1c0000
+KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
+KERNEL_MD5=$(md5=$(md5sum $KERNEL_PATH); echo ${md5%% *})
+KERNEL_PART_SIZE=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
+
+ROOTFS_PATH=$3
+ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); printf "0x%x" $addr)
+ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
+ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - 1))
+ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *})
+ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
+ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE))
+
+cat << EOF > $CFG_OUT
+[vmlinux]
+filename=kernel
+md5sum=$KERNEL_MD5
+flashaddr=$KERNEL_FLASH_ADDR
+checksize=0x0
+cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
+cmd_fail=reset
+
+[rootfs]
+filename=rootfs
+md5sum=$ROOTFS_MD5
+flashaddr=$ROOTFS_FLASH_ADDR
+checksize=$ROOTFS_CHECK_SIZE
+cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
+cmd_fail=reset
+EOF