openwrt/target/linux/kirkwood/base-files/lib/upgrade/linksys.sh

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#
# Copyright (C) 2014 OpenWrt.org
#
linksys_get_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/devices/virtual/ubi/ubi0/mtd_num)
case $(egrep ^mtd${mtd_ubi0}: /proc/mtd | cut -d '"' -f 2) in
kernel|rootfs)
cur_boot_part=1
;;
alt_kernel|alt_rootfs)
cur_boot_part=2
;;
esac
>&2 printf "Current boot_part='%s' selected from ubi0/mtd_num='%s'" \
"${cur_boot_part}" "${mtd_ubi0}"
fi
case $cur_boot_part in
1)
fw_setenv -s - <<-EOF
boot_part 2
bootcmd "run altnandboot"
EOF
printf "kernel2"
return
;;
2)
fw_setenv -s - <<-EOF
boot_part 1
bootcmd "run nandboot"
EOF
printf "kernel1"
return
;;
*)
return
;;
esac
}
platform_do_upgrade_linksys() {
local magic_long="$(get_magic_long "$1")"
mkdir -p /var/lock
local part_label="$(linksys_get_target_firmware)"
touch /var/lock/fw_printenv.lock
if [ ! -n "$part_label" ]
then
echo "cannot find target partition"
exit 1
fi
local target_mtd=$(find_mtd_part $part_label)
[ "$magic_long" = "73797375" ] && {
CI_KERNPART="$part_label"
if [ "$part_label" = "kernel1" ]
then
CI_UBIPART="rootfs1"
else
CI_UBIPART="rootfs2"
fi
nand_upgrade_tar "$1"
}
[ "$magic_long" = "27051956" ] && {
get_image "$1" | mtd write - $part_label
}
}