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