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                 SIZE_FACTOR=1
  27                 SIZE_FORMAT="%d"
  28                 ;;
  29         OM5P|OM5PAC|MR600|MR900|MR1750|A60)
  30                 MAX_PART_SIZE=7808
  31                 KERNEL_FLASH_ADDR=0xb0000
  32                 SIZE_FACTOR=1
  33                 SIZE_FORMAT="%d"
  34                 ;;
  35         A42)
  36                 MAX_PART_SIZE=15616
  37                 KERNEL_FLASH_ADDR=0x180000
  38                 SIZE_FACTOR=1024
  39                 SIZE_FORMAT="0x%08x"
  40                 ;;
  41         A62)
  42                 MAX_PART_SIZE=15552
  43                 KERNEL_FLASH_ADDR=0x1a0000
  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 $KERNEL_PATH)
  58 KERNEL_PART_SIZE_KB=$((KERNEL_SIZE / 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 "$ROOTFS_PATH")
  63 ROOTFS_SQUASHFS_SIZE=$((ROOTFS_SIZE-4))
  64 ROOTFS_CHECK_BLOCKS=$((ROOTFS_SQUASHFS_SIZE / CHECK_BS))
  65 ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
  66 ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
  67 ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
  68 ROOTFS_CHECK_SIZE=$(printf '0x%x' $ROOTFS_SQUASHFS_SIZE)
  69 ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
  70 ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))
  71
  72 cat << EOF > $CFG_OUT
  73 [vmlinux]
  74 filename=kernel
  75 md5sum=$KERNEL_MD5
  76 filemd5sum=$KERNEL_MD5
  77 filesha256sum=$KERNEL_SHA256
  78 flashaddr=$KERNEL_FLASH_ADDR
  79 checksize=0x0
  80 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
  81 cmd_fail=reset
  82
  83 [rootfs]
  84 filename=rootfs
  85 md5sum=$ROOTFS_MD5
  86 filemd5sum=$ROOTFS_MD5_FULL
  87 filesha256sum=$ROOTFS_SHA256_FULL
  88 flashaddr=$ROOTFS_FLASH_ADDR
  89 checksize=$ROOTFS_CHECK_SIZE
  90 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
  91 cmd_fail=reset
  92 EOF