target/linux/cns3xxx/base-files/lib/upgrade/platform.sh

   1 . /lib/cns3xxx.sh
   2
   3 RAMFS_COPY_DATA="/lib/cns3xxx.sh"
   4
   5 CI_BLKSZ=65536
   6
   7 platform_find_partitions() {
   8         local first dev size erasesize name
   9         while read dev size erasesize name; do
  10                 name=${name#'"'}; name=${name%'"'}
  11                 case "$name" in
  12                         vmlinux.bin.l7|kernel|linux|rootfs)
  13                                 if [ -z "$first" ]; then
  14                                         first="$name"
  15                                 else
  16                                         echo "$erasesize:$first:$name"
  17                                         break
  18                                 fi
  19                         ;;
  20                 esac
  21         done < /proc/mtd
  22 }
  23
  24 platform_find_kernelpart() {
  25         local part
  26         for part in "${1%:*}" "${1#*:}"; do
  27                 case "$part" in
  28                         vmlinux.bin.l7|kernel|linux)
  29                                 echo "$part"
  30                                 break
  31                         ;;
  32                 esac
  33         done
  34 }
  35
  36 platform_do_upgrade_combined() {
  37         local partitions=$(platform_find_partitions)
  38         local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
  39         local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
  40         local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
  41         local kern_blocks=$(($kern_length / $CI_BLKSZ))
  42         local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
  43
  44         v "platform_do_upgrade_combined"
  45         v "partitions=$partitions"
  46         v "kernelpart=$kernelpart"
  47         v "erase_size=$erase_size"
  48         v "kern_blocks=$kern_blocks"
  49         v "root_blocks=$root_blocks"
  50
  51         if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
  52            [ ${kern_blocks:-0} -gt 0 ] && \
  53            [ ${root_blocks:-0} -gt 0 ] && \
  54            [ ${erase_size:-0} -gt 0 ];
  55         then
  56                 local append=""
  57                 [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
  58
  59                 dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | mtd write - kernel
  60                 dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
  61                                  mtd -r $append write - rootfs
  62         else
  63                 echo "invalid image"
  64         fi
  65 }
  66
  67 platform_check_image() {
  68         local board=$(cns3xxx_board_name)
  69         local magic="$(get_magic_word "$1")"
  70         local magic_long="$(get_magic_long "$1")"
  71
  72         [ "$#" -gt 1 ] && return 1
  73
  74         case "$board" in
  75         laguna)
  76                 [ "$magic" != "4349" ] && {
  77                         echo "Invalid image. Use *-sysupgrade.bin files on this board"
  78                         return 1
  79                 }
  80
  81                 local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
  82                 local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
  83
  84                 if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
  85                         return 0
  86                 else
  87                         echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
  88                         return 1
  89                 fi
  90                 return 0
  91                 ;;
  92         esac
  93
  94         echo "Sysupgrade is not yet supported on $board."
  95         return 1
  96 }
  97
  98 platform_do_upgrade() {
  99         local board=$(cns3xxx_board_name)
 100
 101         v "board=$board"
 102         case "$board" in
 103         laguna)
 104                 platform_do_upgrade_combined "$ARGV"
 105                 ;;
 106         *)
 107                 default_do_upgrade "$ARGV"
 108                 ;;
 109         esac
 110 }
 111
 112 disable_watchdog() {
 113         v "killing watchdog"
 114         killall watchdog
 115         ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
 116                 echo 'Could not disable watchdog'
 117                 return 1
 118         }
 119 }
 120
 121 # CONFIG_WATCHDOG_NOWAYOUT=y - can't kill watchdog unless kernel cmdline has a mpcore_wdt.nowayout=0
 122 #append sysupgrade_pre_upgrade disable_watchdog