target/linux/ipq806x/base-files/lib/upgrade/asrock.sh

   1 . /lib/functions.sh
   2
   3 asrock_bootconfig_mangle() {
   4         local mtdnum="$(find_mtd_index 0:bootconfig)"
   5         # XXX: drop upper case after kernel v5.4 is gone (qcom-smem)
   6         [ -n "$mtdnum" ] || mtdnum="$(find_mtd_index 0:BOOTCONFIG)"
   7
   8         if [ -z "$mtdnum" ]; then
   9                 echo "cannot find bootconfig mtd partition"
  10                 return 1
  11         fi
  12         dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
  13
  14         local partition_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=52 count=1)"
  15         local upgrade_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=4 count=1)"
  16
  17         if [ $1 = "bootcheck" ]; then
  18                 if [ ! -s $upgrade_byte ]; then
  19                         dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
  20                         printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
  21                         printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
  22                 else
  23                         return 1
  24                 fi
  25         elif [ $1 = "sysupgrade" ]; then
  26                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
  27                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
  28         fi
  29
  30         if [ -s $partition_byte ]; then
  31                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
  32         else
  33                 printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
  34         fi
  35
  36         mtd write /tmp/mtd$mtdnum /dev/mtd$mtdnum
  37         return 0
  38 }
  39
  40 asrock_upgrade_prepare() {
  41         local ubidev="$( nand_find_ubi ubi )"
  42
  43         #Set upgrade flag. If something goes wrong, router will boot with
  44         #factory firmware.
  45         asrock_bootconfig_mangle 'sysupgrade'
  46
  47         if [ $? -ne 0 ]; then
  48                 echo "cannot find bootconfig mtd partition"
  49                 exit 1
  50         fi
  51
  52         # Just delete these partitions if present and use
  53         # OpenWrt's standard names for those.
  54         ubirmvol /dev/$ubidev -N ubi_rootfs &> /dev/null || true
  55         ubirmvol /dev/$ubidev -N ubi_rootfs_data &> /dev/null || true
  56 }