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                 MD5_SKIP_BLOCKS=4
  27                 SIZE_FACTOR=1
  28                 SIZE_FORMAT="%d"
  29                 ;;
  30         OM5P|OM5PAC|MR600|MR900|MR1750|A60)
  31                 MAX_PART_SIZE=7808
  32                 KERNEL_FLASH_ADDR=0xb0000
  33                 MD5_SKIP_BLOCKS=4
  34                 SIZE_FACTOR=1
  35                 SIZE_FORMAT="%d"
  36                 ;;
  37         A42)
  38                 MAX_PART_SIZE=15616
  39                 KERNEL_FLASH_ADDR=0x180000
  40                 MD5_SKIP_BLOCKS=4
  41                 SIZE_FACTOR=1024
  42                 SIZE_FORMAT="0x%08x"
  43                 ;;
  44         A62)
  45                 MAX_PART_SIZE=15552
  46                 KERNEL_FLASH_ADDR=0x1a0000
  47                 MD5_SKIP_BLOCKS=4
  48                 SIZE_FACTOR=1024
  49                 SIZE_FORMAT="0x%08x"
  50                 ;;
  51         *)
  52                 echo "Error - unsupported ce type: $CE_TYPE"
  53                 exit 1
  54                 ;;
  55 esac
  56
  57 CHECK_BS=65536
  58
  59 KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
  60 KERNEL_MD5=$(mkhash md5 $KERNEL_PATH)
  61 KERNEL_SHA256=$(mkhash sha256 $KERNEL_PATH)
  62 KERNEL_PART_SIZE_KB=$((KERNEL_SIZE / 1024))
  63 KERNEL_PART_SIZE=$(printf $SIZE_FORMAT $(($KERNEL_PART_SIZE_KB * $SIZE_FACTOR)))
  64
  65 ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE_KB * 1024))); printf "0x%x" $addr)
  66 ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
  67 ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
  68 ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
  69 ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
  70 ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
  71 ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
  72 ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
  73 ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))
  74
  75 cat << EOF > $CFG_OUT
  76 [vmlinux]
  77 filename=kernel
  78 md5sum=$KERNEL_MD5
  79 filemd5sum=$KERNEL_MD5
  80 filesha256sum=$KERNEL_SHA256
  81 flashaddr=$KERNEL_FLASH_ADDR
  82 checksize=0x0
  83 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
  84 cmd_fail=reset
  85
  86 [rootfs]
  87 filename=rootfs
  88 md5sum=$ROOTFS_MD5
  89 filemd5sum=$ROOTFS_MD5_FULL
  90 filesha256sum=$ROOTFS_SHA256_FULL
  91 flashaddr=$ROOTFS_FLASH_ADDR
  92 checksize=$ROOTFS_CHECK_SIZE
  93 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
  94 cmd_fail=reset
  95 EOF