| 1 | # The U-Boot loader of the OM2P requires image sizes and checksums to be |
| 2 | # provided in the U-Boot environment. |
| 3 | # The OM2P comes with 2 main partitions - while one is active sysupgrade |
| 4 | # will flash the other. The boot order is changed to boot the newly |
| 5 | # flashed partition. If the new partition can't be booted due to upgrade |
| 6 | # 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 | platform_add_ramfs_ubootenv() |
| 31 | { |
| 32 | [ -e /usr/sbin/fw_printenv ] && install_bin /usr/sbin/fw_printenv /usr/sbin/fw_setenv |
| 33 | [ -e /etc/fw_env.config ] && install_file /etc/fw_env.config |
| 34 | } |
| 35 | append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv |
| 36 | |
| 37 | platform_check_image_om2p() |
| 38 | { |
| 39 | local img_magic=$1 |
| 40 | local img_path=$2 |
| 41 | local fw_printenv=/usr/sbin/fw_printenv |
| 42 | local img_board_target= img_num_files= i=0 |
| 43 | local cfg_name= kernel_name= rootfs_name= |
| 44 | |
| 45 | case "$img_magic" in |
| 46 | # Combined Extended Image v1 |
| 47 | 43453031) |
| 48 | img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null)) |
| 49 | img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null)) |
| 50 | ;; |
| 51 | *) |
| 52 | echo "Invalid image ($img_magic). Use combined extended images on this platform" |
| 53 | return 1 |
| 54 | ;; |
| 55 | esac |
| 56 | |
| 57 | case "$img_board_target" in |
| 58 | OM2P) |
| 59 | ;; |
| 60 | *) |
| 61 | echo "Invalid board target ($img_board_target). Use the correct image for this platform" |
| 62 | return 1 |
| 63 | ;; |
| 64 | esac |
| 65 | |
| 66 | [ $img_num_files -ne 3 ] && { |
| 67 | echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform" |
| 68 | return 1 |
| 69 | } |
| 70 | |
| 71 | cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null)) |
| 72 | |
| 73 | [ "$cfg_name" != "fwupgrade.cfg" ] && { |
| 74 | echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform" |
| 75 | return 1 |
| 76 | } |
| 77 | |
| 78 | kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null)) |
| 79 | |
| 80 | [ "$kernel_name" != "kernel" ] && { |
| 81 | echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform" |
| 82 | return 1 |
| 83 | } |
| 84 | |
| 85 | rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null)) |
| 86 | |
| 87 | [ "$rootfs_name" != "rootfs" ] && { |
| 88 | echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform" |
| 89 | return 1 |
| 90 | } |
| 91 | |
| 92 | [ ! -x "$fw_printenv" ] && { |
| 93 | echo "Please install uboot-envtools!" |
| 94 | return 1 |
| 95 | } |
| 96 | |
| 97 | [ ! -r "/etc/fw_env.config" ] && { |
| 98 | echo "/etc/fw_env.config is missing" |
| 99 | return 1 |
| 100 | } |
| 101 | |
| 102 | return 0 |
| 103 | } |
| 104 | |
| 105 | platform_do_upgrade_om2p() |
| 106 | { |
| 107 | local img_path=$1 |
| 108 | local kernel_start_addr= kernel_size= kernel_md5= |
| 109 | local rootfs_size= rootfs_checksize= rootfs_md5= |
| 110 | local kernel_bsize= total_size=7340032 |
| 111 | local data_offset=$((64 * 1024)) block_size=$((256 * 1024)) offset= |
| 112 | local uboot_env_upgrade="/tmp/fw_env_upgrade" |
| 113 | local cfg_size= kernel_size= rootfs_size= |
| 114 | local append="" |
| 115 | |
| 116 | [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" |
| 117 | |
| 118 | cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null) |
| 119 | kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null) |
| 120 | rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null) |
| 121 | |
| 122 | cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null) |
| 123 | |
| 124 | kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum") |
| 125 | rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum") |
| 126 | rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize") |
| 127 | |
| 128 | if [ "$((0x$kernel_size % $block_size))" = "0" ] |
| 129 | then |
| 130 | kernel_bsize=$(echo $((0x$kernel_size))) |
| 131 | else |
| 132 | kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size)))) |
| 133 | fi |
| 134 | |
| 135 | mtd -q erase inactive |
| 136 | |
| 137 | offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size))) |
| 138 | dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive" |
| 139 | |
| 140 | offset=$(echo $(($data_offset + 0x$cfg_size))) |
| 141 | dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive" |
| 142 | |
| 143 | rm $uboot_env_upgrade 2>&- |
| 144 | |
| 145 | if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ] |
| 146 | then |
| 147 | printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade |
| 148 | printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade |
| 149 | printf "bootseq 1,2\n" >> $uboot_env_upgrade |
| 150 | kernel_start_addr=0x9f1c0000 |
| 151 | else |
| 152 | printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade |
| 153 | printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade |
| 154 | printf "bootseq 2,1\n" >> $uboot_env_upgrade |
| 155 | kernel_start_addr=0x9f8c0000 |
| 156 | fi |
| 157 | |
| 158 | printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade |
| 159 | printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade |
| 160 | printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade |
| 161 | printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade |
| 162 | printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade |
| 163 | printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade |
| 164 | |
| 165 | fw_setenv -s $uboot_env_upgrade || { |
| 166 | echo "failed to update U-Boot environment" |
| 167 | return 1 |
| 168 | } |
| 169 | } |
| 170 | |
