scripts/om-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 <OM2P|OM5P|OM5PAC|MR600|MR900|MR1750|A60|A42> <out file path> <kernel path> <rootfs path>"
  11         rm -f $CFG_OUT
  12         exit 1
  13 }
  14
  15 [ "$#" -lt 4 ] && usage
  16
  17 CE_TYPE=$1
  18 CFG_OUT=$2
  19 KERNEL_PATH=$3
  20 ROOTFS_PATH=$4
  21
  22 case $CE_TYPE in
  23         OM2P)
  24                 MAX_PART_SIZE=7168
  25                 KERNEL_FLASH_ADDR=0x1c0000
  26                 FLASH_BS=262144
  27                 MD5_SKIP_BLOCKS=1
  28                 SIZE_FACTOR=1
  29                 SIZE_FORMAT="%d"
  30                 ;;
  31         OM5P|OM5PAC|MR600|MR900|MR1750|A60)
  32                 MAX_PART_SIZE=7808
  33                 KERNEL_FLASH_ADDR=0xb0000
  34                 FLASH_BS=65536
  35                 MD5_SKIP_BLOCKS=4
  36                 SIZE_FACTOR=1
  37                 SIZE_FORMAT="%d"
  38                 ;;
  39         A42)
  40                 MAX_PART_SIZE=15616
  41                 KERNEL_FLASH_ADDR=0x180000
  42                 FLASH_BS=65536
  43                 MD5_SKIP_BLOCKS=4
  44                 SIZE_FACTOR=1024
  45                 SIZE_FORMAT="0x%08x"
  46                 ;;
  47         *)
  48                 echo "Error - unsupported ce type: $CE_TYPE"
  49                 exit 1
  50                 ;;
  51 esac
  52
  53 CHECK_BS=65536
  54
  55 KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
  56 KERNEL_MD5=$(mkhash md5 $KERNEL_PATH)
  57 KERNEL_SHA256=$(mkhash sha256 $KERNEL_PATH)
  58 KERNEL_PART_SIZE_KB=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
  59 KERNEL_PART_SIZE=$(printf $SIZE_FORMAT $(($KERNEL_PART_SIZE_KB * $SIZE_FACTOR)))
  60
  61 ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE_KB * 1024))); printf "0x%x" $addr)
  62 ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
  63 ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
  64 ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
  65 ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
  66 ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
  67 ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
  68 ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
  69 ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))
  70
  71 cat << EOF > $CFG_OUT
  72 [vmlinux]
  73 filename=kernel
  74 md5sum=$KERNEL_MD5
  75 filemd5sum=$KERNEL_MD5
  76 filesha256sum=$KERNEL_SHA256
  77 flashaddr=$KERNEL_FLASH_ADDR
  78 checksize=0x0
  79 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
  80 cmd_fail=reset
  81
  82 [rootfs]
  83 filename=rootfs
  84 md5sum=$ROOTFS_MD5
  85 filemd5sum=$ROOTFS_MD5_FULL
  86 filesha256sum=$ROOTFS_SHA256_FULL
  87 flashaddr=$ROOTFS_FLASH_ADDR
  88 checksize=$ROOTFS_CHECK_SIZE
  89 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
  90 cmd_fail=reset
  91 EOF