#
linksys_get_target_firmware() {
- cur_boot_part=`/usr/sbin/fw_printenv -n boot_part`
- target_firmware=""
- if [ "$cur_boot_part" = "1" ]
- then
- # current primary boot - update alt boot
- target_firmware="kernel2"
- fw_setenv boot_part 2
- #In EA8500 bootcmd is always "bootipq", so don't change
- #fw_setenv bootcmd "run altnandboot"
- elif [ "$cur_boot_part" = "2" ]
- then
- # current alt boot - update primary boot
- target_firmware="kernel1"
- fw_setenv boot_part 1
- #In EA8500 bootcmd is always "bootipq", so don't change
- #fw_setenv bootcmd "run nandboot"
- fi
-
- # re-enable recovery so we get back if the new firmware is broken
- fw_setenv auto_recovery yes
- echo "$target_firmware"
-}
+ local cur_boot_part mtd_ubi0
+
+ cur_boot_part=$(/usr/sbin/fw_printenv -n boot_part)
+ if [ -z "${cur_boot_part}" ] ; then
+ mtd_ubi0=$(cat /sys/class/ubi/ubi0/mtd_num)
+ case $(grep -E ^mtd${mtd_ubi0}: /proc/mtd | cut -d '"' -f 2) in
+ kernel1|rootfs1)
+ cur_boot_part=1
+ ;;
+ kernel2|rootfs2)
+ cur_boot_part=2
+ ;;
+ esac
+ >&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
+ "${cur_boot_part}" "${mtd_ubi0}"
+ fi
-linksys_get_root_magic() {
- (get_image "$@" | dd skip=786432 bs=4 count=1 | hexdump -v -n 4 -e '1/1 "%02x"') 2>/dev/null
+ case $cur_boot_part in
+ 1)
+ fw_setenv -s - <<-EOF
+ boot_part 2
+ auto_recovery yes
+ EOF
+ printf "kernel2"
+ return
+ ;;
+ 2)
+ fw_setenv -s - <<-EOF
+ boot_part 1
+ auto_recovery yes
+ EOF
+ printf "kernel1"
+ return
+ ;;
+ *)
+ return
+ ;;
+ esac
}
platform_do_upgrade_linksys() {
nand_upgrade_tar "$1"
}
[ "$magic_long" = "27051956" ] && {
- # check firmwares' rootfs types
- local oldroot="$(linksys_get_root_magic $target_mtd)"
- local newroot="$(linksys_get_root_magic "$1")"
-
- if [ "$newroot" = "55424923" -a "$oldroot" = "55424923" ]
- # we're upgrading from a firmware with UBI to one with UBI
- then
- # erase everything to be safe
- mtd erase $part_label
- get_image "$1" | mtd -n write - $part_label
- else
- get_image "$1" | mtd write - $part_label
- fi
+ get_image "$1" | mtd write - $part_label
}
}
-
-linksys_preupgrade() {
- export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /usr/sbin/fw_printenv /usr/sbin/fw_setenv"
- export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /bin/mkdir /bin/touch"
- export RAMFS_COPY_DATA="${RAMFS_COPY_DATA} /etc/fw_env.config /var/lock/fw_printenv.lock"
-
-}
-
-append sysupgrade_pre_upgrade linksys_preupgrade