target/linux/ar71xx/base-files/lib/upgrade/openmesh.sh

   1 # The U-Boot loader of the OpenMesh devices requires image sizes and
   2 # checksums to be provided in the U-Boot environment.
   3 # The OpenMesh devices come with 2 main partitions - while one is active
   4 # sysupgrade will flash the other. The boot order is changed to boot the
   5 # newly flashed partition. If the new partition can't be booted due to
   6 # upgrade failures the previously used partition is loaded.
   7
   8 trim()
   9 {
  10         echo $1
  11 }
  12
  13 cfg_value_get()
  14 {
  15         local cfg=$1 cfg_opt
  16         local section=$2 our_section=0
  17         local param=$3 our_param=
  18
  19         for cfg_opt in $cfg
  20                 do
  21                         [ "$cfg_opt" = "[$section]" ] && our_section=1 && continue
  22                         [ "$our_section" = "1" ] || continue
  23
  24                         our_param=$(echo ${cfg_opt%%=*})
  25                         [ "$param" = "$our_param" ] && echo ${cfg_opt##*=} && break
  26                 done
  27 }
  28
  29 # create /var/lock for the lock "fw_setenv.lock" of fw_setenv
  30 # the rest is copied using ar71xx's RAMFS_COPY_BIN and RAMFS_COPY_DATA
  31 platform_add_ramfs_ubootenv()
  32 {
  33         mkdir -p $RAM_ROOT/var/lock
  34 }
  35 append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv
  36
  37 platform_check_image_target_openmesh()
  38 {
  39         img_board_target="$1"
  40
  41         case "$img_board_target" in
  42                 A60)
  43                         [ "$board" = "a40" ] && return 0
  44                         [ "$board" = "a60" ] && return 0
  45                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  46                         return 1
  47                         ;;
  48                 OM2P)
  49                         [ "$board" = "om2p" ] && return 0
  50                         [ "$board" = "om2pv2" ] && return 0
  51                         [ "$board" = "om2pv4" ] && return 0
  52                         [ "$board" = "om2p-lc" ] && return 0
  53                         [ "$board" = "om2p-hs" ] && return 0
  54                         [ "$board" = "om2p-hsv2" ] && return 0
  55                         [ "$board" = "om2p-hsv3" ] && return 0
  56                         [ "$board" = "om2p-hsv4" ] && return 0
  57                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  58                         return 1
  59                         ;;
  60                 OM5P)
  61                         [ "$board" = "om5p" ] && return 0
  62                         [ "$board" = "om5p-an" ] && return 0
  63                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  64                         return 1
  65                         ;;
  66                 OM5PAC)
  67                         [ "$board" = "om5p-ac" ] && return 0
  68                         [ "$board" = "om5p-acv2" ] && return 0
  69                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  70                         return 1
  71                         ;;
  72                 MR1750)
  73                         [ "$board" = "mr1750" ] && return 0
  74                         [ "$board" = "mr1750v2" ] && return 0
  75                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  76                         return 1
  77                         ;;
  78                 MR600)
  79                         [ "$board" = "mr600" ] && return 0
  80                         [ "$board" = "mr600v2" ] && return 0
  81                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  82                         return 1
  83                         ;;
  84                 MR900)
  85                         [ "$board" = "mr900" ] && return 0
  86                         [ "$board" = "mr900v2" ] && return 0
  87                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  88                         return 1
  89                         ;;
  90                 *)
  91                         echo "Invalid board target ($img_board_target). Use the correct image for this platform"
  92                         return 1
  93                         ;;
  94         esac
  95 }
  96
  97 platform_check_image_openmesh()
  98 {
  99         local img_magic=$1
 100         local img_path=$2
 101         local fw_printenv=/usr/sbin/fw_printenv
 102         local img_board_target= img_num_files= i=0
 103         local cfg_name= kernel_name= rootfs_name=
 104
 105         case "$img_magic" in
 106                 # Combined Extended Image v1
 107                 43453031)
 108                         img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
 109                         img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null))
 110                         ;;
 111                 *)
 112                         echo "Invalid image ($img_magic). Use combined extended images on this platform"
 113                         return 1
 114                         ;;
 115         esac
 116
 117         platform_check_image_target_openmesh "$img_board_target" || return 1
 118
 119         [ $img_num_files -lt 3 ] && {
 120                 echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform"
 121                 return 1
 122         }
 123
 124         cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null))
 125
 126         [ "$cfg_name" != "fwupgrade.cfg" ] && {
 127                 echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform"
 128                 return 1
 129         }
 130
 131         kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null))
 132
 133         [ "$kernel_name" != "kernel" ] && {
 134                 echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform"
 135                 return 1
 136         }
 137
 138         rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null))
 139
 140         [ "$rootfs_name" != "rootfs" ] && {
 141                 echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform"
 142                 return 1
 143         }
 144
 145         [ ! -x "$fw_printenv" ] && {
 146                 echo "Please install uboot-envtools!"
 147                 return 1
 148         }
 149
 150         [ ! -r "/etc/fw_env.config" ] && {
 151                 echo "/etc/fw_env.config is missing"
 152                 return 1
 153         }
 154
 155         return 0
 156 }
 157
 158 platform_do_upgrade_openmesh()
 159 {
 160         local img_path=$1 img_board_target=
 161         local kernel_start_addr= kernel_start_addr1= kernel_start_addr2=
 162         local kernel_size= kernel_md5=
 163         local rootfs_size= rootfs_checksize= rootfs_md5=
 164         local kernel_bsize= total_size=
 165         local data_offset=$((64 * 1024)) block_size= offset=
 166         local uboot_env_upgrade="/tmp/fw_env_upgrade"
 167         local cfg_size= kernel_size= rootfs_size=
 168         local append=""
 169
 170         [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
 171
 172         cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
 173         kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)
 174         rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null)
 175
 176         img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
 177         cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null)
 178
 179         case $img_board_target in
 180                 OM2P)
 181                         block_size=$((256 * 1024))
 182                         total_size=7340032
 183                         kernel_start_addr1=0x9f1c0000
 184                         kernel_start_addr2=0x9f8c0000
 185                         ;;
 186                 OM5P|OM5PAC|MR600|MR900|MR1750|A60)
 187                         block_size=$((64 * 1024))
 188                         total_size=7995392
 189                         kernel_start_addr1=0x9f0b0000
 190                         kernel_start_addr2=0x9f850000
 191                         ;;
 192         esac
 193
 194         kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum")
 195         rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum")
 196         rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize")
 197
 198         if [ "$((0x$kernel_size % $block_size))" = "0" ]
 199                 then
 200                         kernel_bsize=$(echo $((0x$kernel_size)))
 201                 else
 202                         kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size))))
 203         fi
 204
 205         mtd -q erase inactive
 206
 207         offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size)))
 208         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive"
 209
 210         offset=$(echo $(($data_offset + 0x$cfg_size)))
 211         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive"
 212
 213         rm $uboot_env_upgrade 2>&-
 214
 215         if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ]
 216                 then
 217                         printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
 218                         printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
 219                         printf "bootseq 1,2\n" >> $uboot_env_upgrade
 220                         kernel_start_addr=$kernel_start_addr1
 221                 else
 222                         printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
 223                         printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
 224                         printf "bootseq 2,1\n" >> $uboot_env_upgrade
 225                         kernel_start_addr=$kernel_start_addr2
 226         fi
 227
 228         printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade
 229         printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade
 230         printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade
 231         printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade
 232         printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade
 233         printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade
 234
 235         fw_setenv -s $uboot_env_upgrade || {
 236                 echo "failed to update U-Boot environment"
 237                 return 1
 238         }
 239 }