target/linux/ixp4xx/base-files/lib/upgrade/platform.sh

   1 . /lib/ixp4xx.sh
   2
   3 RAMFS_COPY_DATA="/lib/ixp4xx.sh"
   4
   5 CI_BLKSZ=65536
   6 CI_LDADR=0x00800000
   7
   8 platform_find_partitions() {
   9         local first dev size erasesize name
  10         while read dev size erasesize name; do
  11                 name=${name#'"'}; name=${name%'"'}
  12                 case "$name" in
  13                         vmlinux.bin.l7|kernel|linux|rootfs)
  14                                 if [ -z "$first" ]; then
  15                                         first="$name"
  16                                 else
  17                                         echo "$erasesize:$first:$name"
  18                                         break
  19                                 fi
  20                         ;;
  21                 esac
  22         done < /proc/mtd
  23 }
  24
  25 platform_find_kernelpart() {
  26         local part
  27         for part in "${1%:*}" "${1#*:}"; do
  28                 case "$part" in
  29                         vmlinux.bin.l7|kernel|linux)
  30                                 echo "$part"
  31                                 break
  32                         ;;
  33                 esac
  34         done
  35 }
  36
  37 platform_find_part_size() {
  38         local first dev size erasesize name
  39         while read dev size erasesize name; do
  40                 name=${name#'"'}; name=${name%'"'}
  41                 [ "$name" = "$1" ] && {
  42                         echo "$size"
  43                         break
  44                 }
  45         done < /proc/mtd
  46 }
  47
  48 platform_do_upgrade_combined() {
  49         local partitions=$(platform_find_partitions)
  50         local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
  51         local erase_size=$((0x${partitions%%:*})); partitions="${partitions#*:}"
  52         local kern_part_size=0x$(platform_find_part_size "$kernelpart")
  53         local kern_part_blocks=$(($kern_part_size / $CI_BLKSZ))
  54         local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
  55         local kern_blocks=$(($kern_length / $CI_BLKSZ))
  56         local root_blocks=$((0x$(dd if="$1" bs=2 skip=5 count=4 2>/dev/null) / $CI_BLKSZ))
  57
  58         v "platform_do_upgrade_combined"
  59         v "partitions=$partitions"
  60         v "kernelpart=$kernelpart"
  61         v "kernel_part_size=$kern_part_size"
  62         v "kernel_part_blocks=$kern_part_blocks"
  63         v "kern_length=$kern_length"
  64         v "erase_size=$erase_size"
  65         v "kern_blocks=$kern_blocks"
  66         v "root_blocks=$root_blocks"
  67         v "kern_pad_blocks=$(($kern_part_blocks-$kern_blocks))"
  68
  69         if [ -n "$partitions" ] && [ -n "$kernelpart" ] && \
  70            [ ${kern_blocks:-0} -gt 0 ] && \
  71            [ ${root_blocks:-0} -gt 0 ] && \
  72            [ ${erase_size:-0} -gt 0 ];
  73         then
  74                 local append=""
  75                 [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
  76
  77                 # write the kernel
  78                 dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null | \
  79                         mtd -F$kernelpart:$kern_part_size:$CI_LDADR write - $kernelpart
  80                 # write the rootfs
  81                 dd if="$1" bs=$CI_BLKSZ skip=$((1+$kern_blocks)) count=$root_blocks 2>/dev/null | \
  82                         mtd $append write - rootfs
  83         else
  84                 echo "invalid image"
  85         fi
  86 }
  87
  88 platform_check_image() {
  89         local board=$(ixp4xx_board_name)
  90         local magic="$(get_magic_word "$1")"
  91         local partitions=$(platform_find_partitions)
  92         local kernelpart=$(platform_find_kernelpart "${partitions#*:}")
  93         local kern_part_size=0x$(platform_find_part_size "$kernelpart")
  94         local kern_length=0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)
  95
  96         [ "$ARGC" -gt 1 ] && return 1
  97
  98         case "$board" in
  99         avila | cambria )
 100                 [ "$magic" != "4349" ] && {
 101                         echo "Invalid image. Use *-sysupgrade.bin files on this board"
 102                         return 1
 103                 }
 104
 105                 kern_length_b=$(printf '%d' $kern_length)
 106                 kern_part_size_b=$(printf '%d' $kern_part_size)
 107                 if [ $kern_length_b -gt $kern_part_size_b ]; then
 108                         echo "Invalid image. Kernel size ($kern_length) exceeds kernel partition ($kern_part_size)"
 109                         return 1
 110                 fi
 111
 112                 local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
 113                 local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
 114                 if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
 115                         return 0
 116                 else
 117                         echo "Invalid image. Contents do not match checksum (image:$md5_img calculated:$md5_chk)"
 118                         return 1
 119                 fi
 120
 121                 return 0
 122                 ;;
 123         esac
 124
 125         echo "Sysupgrade is not yet supported on $board."
 126         return 1
 127 }
 128
 129 platform_do_upgrade() {
 130         local board=$(ixp4xx_board_name)
 131
 132         v "board=$board"
 133         case "$board" in
 134         avila | cambria )
 135                 platform_do_upgrade_combined "$ARGV"
 136                 ;;
 137         *)
 138                 default_do_upgrade "$ARGV"
 139                 ;;
 140         esac
 141 }
 142
 143 disable_watchdog() {
 144         v "killing watchdog"
 145         killall watchdog
 146         ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
 147                 echo 'Could not disable watchdog'
 148                 return 1
 149         }
 150 }
 151
 152 # CONFIG_WATCHDOG_NOWAYOUT=y - can't kill watchdog unless kernel cmdline has a mpcore_wdt.nowayout=0
 153 #append sysupgrade_pre_upgrade disable_watchdog