scripts/om2p-fwupgradecfg-gen.sh

   1 #/bin/sh
   2 #
   3 # Copyright (C) 2011 OpenWrt.org
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See /LICENSE for more information.
   7 #
   8
   9 usage() {
  10         echo "Usage: $0 <out file path> <kernel path> <rootfs path>"
  11         rm -f $CFG_OUT
  12         exit 1
  13 }
  14
  15 [ "$#" -lt 3 ] && usage
  16
  17 FLASH_BS=262144
  18 CHECK_BS=65536
  19 MAX_PART_SIZE=7168
  20 CFG_OUT=$1
  21
  22 KERNEL_PATH=$2
  23 KERNEL_FLASH_ADDR=0x1c0000
  24 KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
  25 KERNEL_MD5=$(md5=$(md5sum $KERNEL_PATH); echo ${md5%% *})
  26 KERNEL_PART_SIZE=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
  27
  28 ROOTFS_PATH=$3
  29 ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); printf "0x%x" $addr)
  30 ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
  31 ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - 1))
  32 ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *})
  33 ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
  34 ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE))
  35
  36 cat << EOF > $CFG_OUT
  37 [vmlinux]
  38 filename=kernel
  39 md5sum=$KERNEL_MD5
  40 flashaddr=$KERNEL_FLASH_ADDR
  41 checksize=0x0
  42 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
  43 cmd_fail=reset
  44
  45 [rootfs]
  46 filename=rootfs
  47 md5sum=$ROOTFS_MD5
  48 flashaddr=$ROOTFS_FLASH_ADDR
  49 checksize=$ROOTFS_CHECK_SIZE
  50 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
  51 cmd_fail=reset
  52 EOF