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|A62> <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         A62)
  48                 MAX_PART_SIZE=15552
  49                 KERNEL_FLASH_ADDR=0x1a0000
  50                 FLASH_BS=65536
  51                 MD5_SKIP_BLOCKS=4
  52                 SIZE_FACTOR=1024
  53                 SIZE_FORMAT="0x%08x"
  54                 ;;
  55         *)
  56                 echo "Error - unsupported ce type: $CE_TYPE"
  57                 exit 1
  58                 ;;
  59 esac
  60
  61 CHECK_BS=65536
  62
  63 KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
  64 KERNEL_MD5=$(mkhash md5 $KERNEL_PATH)
  65 KERNEL_SHA256=$(mkhash sha256 $KERNEL_PATH)
  66 KERNEL_PART_SIZE_KB=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
  67 KERNEL_PART_SIZE=$(printf $SIZE_FORMAT $(($KERNEL_PART_SIZE_KB * $SIZE_FACTOR)))
  68
  69 ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE_KB * 1024))); printf "0x%x" $addr)
  70 ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
  71 ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
  72 ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
  73 ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
  74 ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
  75 ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
  76 ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
  77 ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))
  78
  79 cat << EOF > $CFG_OUT
  80 [vmlinux]
  81 filename=kernel
  82 md5sum=$KERNEL_MD5
  83 filemd5sum=$KERNEL_MD5
  84 filesha256sum=$KERNEL_SHA256
  85 flashaddr=$KERNEL_FLASH_ADDR
  86 checksize=0x0
  87 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
  88 cmd_fail=reset
  89
  90 [rootfs]
  91 filename=rootfs
  92 md5sum=$ROOTFS_MD5
  93 filemd5sum=$ROOTFS_MD5_FULL
  94 filesha256sum=$ROOTFS_SHA256_FULL
  95 flashaddr=$ROOTFS_FLASH_ADDR
  96 checksize=$ROOTFS_CHECK_SIZE
  97 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
  98 cmd_fail=reset
  99 EOF