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