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