target/linux/kirkwood/base-files/lib/upgrade/linksys.sh

   1 #
   2 # Copyright (C) 2014 OpenWrt.org
   3 #
   4
   5 linksys_get_target_firmware() {
   6
   7         local cur_boot_part mtd_ubi0
   8
   9         cur_boot_part=$(/usr/sbin/fw_printenv -n boot_part)
  10         if [ -z "${cur_boot_part}" ] ; then
  11                 mtd_ubi0=$(cat /sys/class/ubi/ubi0/mtd_num)
  12                 case $(grep -E ^mtd${mtd_ubi0}: /proc/mtd | cut -d '"' -f 2) in
  13                 kernel|rootfs)
  14                         cur_boot_part=1
  15                         ;;
  16                 alt_kernel|alt_rootfs)
  17                         cur_boot_part=2
  18                         ;;
  19                 esac
  20                 >&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
  21                         "${cur_boot_part}" "${mtd_ubi0}"
  22         fi
  23
  24         case $cur_boot_part in
  25         1)
  26                 fw_setenv -s - <<-EOF
  27                         boot_part 2
  28                         bootcmd "run altnandboot"
  29                 EOF
  30                 printf "kernel2"
  31                 return
  32                 ;;
  33         2)
  34                 fw_setenv -s - <<-EOF
  35                         boot_part 1
  36                         bootcmd "run nandboot"
  37                 EOF
  38                 printf "kernel1"
  39                 return
  40                 ;;
  41         *)
  42                 return
  43                 ;;
  44         esac
  45 }
  46
  47 platform_do_upgrade_linksys() {
  48         local magic_long="$(get_magic_long "$1")"
  49
  50         mkdir -p /var/lock
  51         local part_label="$(linksys_get_target_firmware)"
  52         touch /var/lock/fw_printenv.lock
  53
  54         if [ ! -n "$part_label" ]
  55         then
  56                 echo "cannot find target partition"
  57                 exit 1
  58         fi
  59
  60         local target_mtd=$(find_mtd_part $part_label)
  61
  62         [ "$magic_long" = "73797375" ] && {
  63                 CI_KERNPART="$part_label"
  64                 if [ "$part_label" = "kernel1" ]
  65                 then
  66                         CI_UBIPART="rootfs1"
  67                 else
  68                         CI_UBIPART="rootfs2"
  69                 fi
  70
  71                 if nand_upgrade_tar "$1" ; then
  72                         nand_do_upgrade_success
  73                 else
  74                         nand_do_upgrade_failed
  75                 fi
  76
  77         }
  78         [ "$magic_long" = "27051956" ] && {
  79                 get_image "$1" | mtd write - $part_label
  80         }
  81 }