diff options
Diffstat (limited to 'target/linux/ar71xx/base-files/lib/upgrade/om2p.sh')
| -rw-r--r-- | target/linux/ar71xx/base-files/lib/upgrade/om2p.sh | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/om2p.sh b/target/linux/ar71xx/base-files/lib/upgrade/om2p.sh new file mode 100644 index 000000000..d9a8bbb7f --- /dev/null +++ b/target/linux/ar71xx/base-files/lib/upgrade/om2p.sh @@ -0,0 +1,169 @@ +# The U-Boot loader of the OM2P requires image sizes and checksums to be +# provided in the U-Boot environment. +# The OM2P comes with 2 main partitions - while one is active sysupgrade +# will flash the other. The boot order is changed to boot the newly +# flashed partition. If the new partition can't be booted due to upgrade +# failures the previously used partition is loaded. + +trim() +{ + echo $1 +} + +cfg_value_get() +{ + local cfg=$1 cfg_opt + local section=$2 our_section=0 + local param=$3 our_param= + + for cfg_opt in $cfg + do + [ "$cfg_opt" = "[$section]" ] && our_section=1 && continue + [ "$our_section" = "1" ] || continue + + our_param=$(echo ${cfg_opt%%=*}) + [ "$param" = "$our_param" ] && echo ${cfg_opt##*=} && break + done +} + +# make sure we got uboot-envtools and fw_env.config copied over to the ramfs +platform_add_ramfs_ubootenv() +{ + [ -e /usr/sbin/fw_printenv ] && install_bin /usr/sbin/fw_printenv /usr/sbin/fw_setenv + [ -e /etc/fw_env.config ] && install_file /etc/fw_env.config +} +append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv + +platform_check_image_om2p() +{ + local img_magic=$1 + local img_path=$2 + local fw_printenv=/usr/sbin/fw_printenv + local img_board_target= img_num_files= i=0 + local cfg_name= kernel_name= rootfs_name= + + case "$img_magic" in + # Combined Extended Image v1 + 43453031) + img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null)) + img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null)) + ;; + *) + echo "Invalid image ($img_magic). Use combined extended images on this platform" + return 1 + ;; + esac + + case "$img_board_target" in + OM2P) + ;; + *) + echo "Invalid board target ($img_board_target). Use the correct image for this platform" + return 1 + ;; + esac + + [ $img_num_files -ne 3 ] && { + echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform" + return 1 + } + + cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null)) + + [ "$cfg_name" != "fwupgrade.cfg" ] && { + echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform" + return 1 + } + + kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null)) + + [ "$kernel_name" != "kernel" ] && { + echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform" + return 1 + } + + rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null)) + + [ "$rootfs_name" != "rootfs" ] && { + echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform" + return 1 + } + + [ ! -x "$fw_printenv" ] && { + echo "Please install uboot-envtools!" + return 1 + } + + [ ! -r "/etc/fw_env.config" ] && { + echo "/etc/fw_env.config is missing" + return 1 + } + + return 0 +} + +platform_do_upgrade_om2p() +{ + local img_path=$1 + local kernel_start_addr= kernel_size= kernel_md5= + local rootfs_size= rootfs_checksize= rootfs_md5= + local kernel_bsize= total_size=7340032 + local data_offset=$((64 * 1024)) block_size=$((256 * 1024)) offset= + local uboot_env_upgrade="/tmp/fw_env_upgrade" + local cfg_size= kernel_size= rootfs_size= + local append="" + + [ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR" + + cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null) + kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null) + rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null) + + cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null) + + kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum") + rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum") + rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize") + + if [ "$((0x$kernel_size % $block_size))" = "0" ] + then + kernel_bsize=$(echo $((0x$kernel_size))) + else + kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size)))) + fi + + mtd -q erase inactive + + offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size))) + dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive" + + offset=$(echo $(($data_offset + 0x$cfg_size))) + dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive" + + rm $uboot_env_upgrade 2>&- + + if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ] + then + printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade + printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade + printf "bootseq 1,2\n" >> $uboot_env_upgrade + kernel_start_addr=0x9f1c0000 + else + printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade + printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade + printf "bootseq 2,1\n" >> $uboot_env_upgrade + kernel_start_addr=0x9f8c0000 + fi + + printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade + printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade + printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade + printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade + printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade + printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade + + fw_setenv -s $uboot_env_upgrade || { + echo "failed to update U-Boot environment" + return 1 + } +} |