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