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                         [ "$board" = "om2pv4" ] && return 0
  48                         [ "$board" = "om2p-lc" ] && return 0
  49                         [ "$board" = "om2p-hs" ] && return 0
  50                         [ "$board" = "om2p-hsv2" ] && return 0
  51                         [ "$board" = "om2p-hsv3" ] && return 0
  52                         [ "$board" = "om2p-hsv4" ] && return 0
  53                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  54                         return 1
  55                         ;;
  56                 OM5P)
  57                         [ "$board" = "om5p" ] && return 0
  58                         [ "$board" = "om5p-an" ] && return 0
  59                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  60                         return 1
  61                         ;;
  62                 OM5PAC)
  63                         [ "$board" = "om5p-ac" ] && return 0
  64                         [ "$board" = "om5p-acv2" ] && return 0
  65                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  66                         return 1
  67                         ;;
  68                 MR1750)
  69                         [ "$board" = "mr1750" ] && return 0
  70                         [ "$board" = "mr1750v2" ] && return 0
  71                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  72                         return 1
  73                         ;;
  74                 MR600)
  75                         [ "$board" = "mr600" ] && return 0
  76                         [ "$board" = "mr600v2" ] && return 0
  77                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  78                         return 1
  79                         ;;
  80                 MR900)
  81                         [ "$board" = "mr900" ] && return 0
  82                         [ "$board" = "mr900v2" ] && return 0
  83                         echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
  84                         return 1
  85                         ;;
  86                 *)
  87                         echo "Invalid board target ($img_board_target). Use the correct image for this platform"
  88                         return 1
  89                         ;;
  90         esac
  91 }
  92
  93 platform_check_image_openmesh()
  94 {
  95         local img_magic=$1
  96         local img_path=$2
  97         local fw_printenv=/usr/sbin/fw_printenv
  98         local img_board_target= img_num_files= i=0
  99         local cfg_name= kernel_name= rootfs_name=
 100
 101         case "$img_magic" in
 102                 # Combined Extended Image v1
 103                 43453031)
 104                         img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
 105                         img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null))
 106                         ;;
 107                 *)
 108                         echo "Invalid image ($img_magic). Use combined extended images on this platform"
 109                         return 1
 110                         ;;
 111         esac
 112
 113         platform_check_image_target_openmesh "$img_board_target" || return 1
 114
 115         [ $img_num_files -lt 3 ] && {
 116                 echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform"
 117                 return 1
 118         }
 119
 120         cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null))
 121
 122         [ "$cfg_name" != "fwupgrade.cfg" ] && {
 123                 echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform"
 124                 return 1
 125         }
 126
 127         kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null))
 128
 129         [ "$kernel_name" != "kernel" ] && {
 130                 echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform"
 131                 return 1
 132         }
 133
 134         rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null))
 135
 136         [ "$rootfs_name" != "rootfs" ] && {
 137                 echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform"
 138                 return 1
 139         }
 140
 141         [ ! -x "$fw_printenv" ] && {
 142                 echo "Please install uboot-envtools!"
 143                 return 1
 144         }
 145
 146         [ ! -r "/etc/fw_env.config" ] && {
 147                 echo "/etc/fw_env.config is missing"
 148                 return 1
 149         }
 150
 151         return 0
 152 }
 153
 154 platform_do_upgrade_openmesh()
 155 {
 156         local img_path=$1 img_board_target=
 157         local kernel_start_addr= kernel_start_addr1= kernel_start_addr2=
 158         local kernel_size= kernel_md5=
 159         local rootfs_size= rootfs_checksize= rootfs_md5=
 160         local kernel_bsize= total_size=
 161         local data_offset=$((64 * 1024)) block_size= offset=
 162         local uboot_env_upgrade="/tmp/fw_env_upgrade"
 163         local cfg_size= kernel_size= rootfs_size=
 164         local append=""
 165
 166         [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
 167
 168         cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
 169         kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)
 170         rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null)
 171
 172         img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
 173         cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null)
 174
 175         case $img_board_target in
 176                 OM2P)
 177                         block_size=$((256 * 1024))
 178                         total_size=7340032
 179                         kernel_start_addr1=0x9f1c0000
 180                         kernel_start_addr2=0x9f8c0000
 181                         ;;
 182                 OM5P|OM5PAC|MR600|MR900|MR1750)
 183                         block_size=$((64 * 1024))
 184                         total_size=7995392
 185                         kernel_start_addr1=0x9f0b0000
 186                         kernel_start_addr2=0x9f850000
 187                         ;;
 188         esac
 189
 190         kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum")
 191         rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum")
 192         rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize")
 193
 194         if [ "$((0x$kernel_size % $block_size))" = "0" ]
 195                 then
 196                         kernel_bsize=$(echo $((0x$kernel_size)))
 197                 else
 198                         kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size))))
 199         fi
 200
 201         mtd -q erase inactive
 202
 203         offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size)))
 204         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive"
 205
 206         offset=$(echo $(($data_offset + 0x$cfg_size)))
 207         dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive"
 208
 209         rm $uboot_env_upgrade 2>&-
 210
 211         if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ]
 212                 then
 213                         printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
 214                         printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
 215                         printf "bootseq 1,2\n" >> $uboot_env_upgrade
 216                         kernel_start_addr=$kernel_start_addr1
 217                 else
 218                         printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
 219                         printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
 220                         printf "bootseq 2,1\n" >> $uboot_env_upgrade
 221                         kernel_start_addr=$kernel_start_addr2
 222         fi
 223
 224         printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade
 225         printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade
 226         printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade
 227         printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade
 228         printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade
 229         printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade
 230
 231         fw_setenv -s $uboot_env_upgrade || {
 232                 echo "failed to update U-Boot environment"
 233                 return 1
 234         }
 235 }