195 lines
6.1 KiB
Bash
195 lines
6.1 KiB
Bash
# The U-Boot loader of the OpenMesh devices requires image sizes and
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# checksums to be provided in the U-Boot environment.
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# The OpenMesh devices come with 2 main partitions - while one is active
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# sysupgrade will flash the other. The boot order is changed to boot the
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# newly flashed partition. If the new partition can't be booted due to
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# upgrade failures the previously used partition is loaded.
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trim()
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{
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echo $1
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}
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cfg_value_get()
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{
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local cfg=$1 cfg_opt
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local section=$2 our_section=0
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local param=$3 our_param=
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for cfg_opt in $cfg
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do
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[ "$cfg_opt" = "[$section]" ] && our_section=1 && continue
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[ "$our_section" = "1" ] || continue
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our_param=$(echo ${cfg_opt%%=*})
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[ "$param" = "$our_param" ] && echo ${cfg_opt##*=} && break
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done
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}
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# make sure we got uboot-envtools and fw_env.config copied over to the ramfs
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platform_add_ramfs_ubootenv()
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{
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[ -e /usr/sbin/fw_printenv ] && install_bin /usr/sbin/fw_printenv /usr/sbin/fw_setenv
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[ -e /etc/fw_env.config ] && install_file /etc/fw_env.config
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}
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append sysupgrade_pre_upgrade platform_add_ramfs_ubootenv
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platform_check_image_openmesh()
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{
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local img_magic=$1
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local img_path=$2
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local fw_printenv=/usr/sbin/fw_printenv
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local img_board_target= img_num_files= i=0
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local cfg_name= kernel_name= rootfs_name=
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case "$img_magic" in
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# Combined Extended Image v1
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43453031)
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img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
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img_num_files=$(trim $(dd if="$img_path" bs=2 skip=18 count=1 2>/dev/null))
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;;
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*)
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echo "Invalid image ($img_magic). Use combined extended images on this platform"
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return 1
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;;
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esac
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case "$img_board_target" in
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OM2P)
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[ "$board" = "om2p" ] && break
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[ "$board" = "om2p-lc" ] && break
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[ "$board" = "om2p-hs" ] && break
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echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
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return 1
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;;
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MR600)
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[ "$board" = "mr600" ] && break
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echo "Invalid image board target ($img_board_target) for this platform: $board. Use the correct image for this platform"
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return 1
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;;
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*)
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echo "Invalid board target ($img_board_target). Use the correct image for this platform"
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return 1
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;;
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esac
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[ $img_num_files -ne 3 ] && {
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echo "Invalid number of embedded images ($img_num_files). Use the correct image for this platform"
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return 1
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}
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cfg_name=$(trim $(dd if="$img_path" bs=2 skip=19 count=16 2>/dev/null))
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[ "$cfg_name" != "fwupgrade.cfg" ] && {
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echo "Invalid embedded config file ($cfg_name). Use the correct image for this platform"
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return 1
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}
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kernel_name=$(trim $(dd if="$img_path" bs=2 skip=55 count=16 2>/dev/null))
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[ "$kernel_name" != "kernel" ] && {
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echo "Invalid embedded kernel file ($kernel_name). Use the correct image for this platform"
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return 1
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}
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rootfs_name=$(trim $(dd if="$img_path" bs=2 skip=91 count=16 2>/dev/null))
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[ "$rootfs_name" != "rootfs" ] && {
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echo "Invalid embedded kernel file ($rootfs_name). Use the correct image for this platform"
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return 1
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}
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[ ! -x "$fw_printenv" ] && {
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echo "Please install uboot-envtools!"
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return 1
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}
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[ ! -r "/etc/fw_env.config" ] && {
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echo "/etc/fw_env.config is missing"
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return 1
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}
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return 0
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}
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platform_do_upgrade_openmesh()
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{
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local img_path=$1 img_board_target=
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local kernel_start_addr= kernel_start_addr1= kernel_start_addr2=
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local kernel_size= kernel_md5=
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local rootfs_size= rootfs_checksize= rootfs_md5=
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local kernel_bsize= total_size=7340032
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local data_offset=$((64 * 1024)) block_size= offset=
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local uboot_env_upgrade="/tmp/fw_env_upgrade"
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local cfg_size= kernel_size= rootfs_size=
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local append=""
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[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
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cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
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kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)
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rootfs_size=$(dd if="$img_path" bs=2 skip=107 count=4 2>/dev/null)
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img_board_target=$(trim $(dd if="$img_path" bs=4 skip=1 count=8 2>/dev/null))
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cfg_content=$(dd if="$img_path" bs=1 skip=$data_offset count=$(echo $((0x$cfg_size))) 2>/dev/null)
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case $img_board_target in
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OM2P)
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block_size=$((256 * 1024))
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kernel_start_addr1=0x9f1c0000
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kernel_start_addr2=0x9f8c0000
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;;
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MR600)
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block_size=$((64 * 1024))
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kernel_start_addr1=0x9f0b0000
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kernel_start_addr2=0x9f850000
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;;
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esac
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kernel_md5=$(cfg_value_get "$cfg_content" "vmlinux" "md5sum")
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rootfs_md5=$(cfg_value_get "$cfg_content" "rootfs" "md5sum")
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rootfs_checksize=$(cfg_value_get "$cfg_content" "rootfs" "checksize")
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if [ "$((0x$kernel_size % $block_size))" = "0" ]
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then
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kernel_bsize=$(echo $((0x$kernel_size)))
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else
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kernel_bsize=$((0x$kernel_size + ($block_size - (0x$kernel_size % $block_size))))
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fi
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mtd -q erase inactive
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offset=$(echo $(($data_offset + 0x$cfg_size + 0x$kernel_size)))
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dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$rootfs_size))) 2>&- | mtd -n -p $kernel_bsize $append write - "inactive"
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offset=$(echo $(($data_offset + 0x$cfg_size)))
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dd if="$img_path" bs=1 skip=$offset count=$(echo $((0x$kernel_size))) 2>&- | mtd -n write - "inactive"
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rm $uboot_env_upgrade 2>&-
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if [ "$(grep 'mtd3:.*inactive' /proc/mtd)" ]
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then
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printf "kernel_size_1 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
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printf "rootfs_size_1 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
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printf "bootseq 1,2\n" >> $uboot_env_upgrade
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kernel_start_addr=$kernel_start_addr1
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else
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printf "kernel_size_2 %u\n" $(($kernel_bsize / 1024)) >> $uboot_env_upgrade
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printf "rootfs_size_2 %u\n" $((($total_size - $kernel_bsize) / 1024)) >> $uboot_env_upgrade
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printf "bootseq 2,1\n" >> $uboot_env_upgrade
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kernel_start_addr=$kernel_start_addr2
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fi
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printf "vmlinux_start_addr %s\n" $kernel_start_addr >> $uboot_env_upgrade
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printf "vmlinux_size 0x%s\n" $kernel_size >> $uboot_env_upgrade
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printf "vmlinux_checksum %s\n" $kernel_md5 >> $uboot_env_upgrade
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printf "rootfs_start_addr 0x%x\n" $(($kernel_start_addr + $kernel_bsize)) >> $uboot_env_upgrade
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printf "rootfs_size %s\n" $rootfs_checksize >> $uboot_env_upgrade
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printf "rootfs_checksum %s\n" $rootfs_md5 >> $uboot_env_upgrade
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fw_setenv -s $uboot_env_upgrade || {
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echo "failed to update U-Boot environment"
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return 1
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}
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}
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