add sysupgrade support

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>

SVN-Revision: 41630

target/linux/mvebu/base-files/lib/upgrade/platform.sh

@@ -0,0 +1,50 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+
+. /lib/mvebu.sh
+
+RAMFS_COPY_DATA=/lib/mvebu.sh
+
+platform_check_image() {
+	local board=$(mvebu_board_name)
+	local magic_long="$(get_magic_long "$1")"
+
+	[ "$#" -gt 1 ] && return 1
+
+	case "$board" in
+	armada-xp-mamba )
+		[ "$magic_long" != "27051956" ] && {
+			echo "Invalid image type."
+			return 1
+		}
+		return 0;
+		;;
+	esac
+
+	echo "Sysupgrade is not yet supported on $board."
+	return 1
+}
+
+platform_do_upgrade() {
+	local board=$(mvebu_board_name)
+
+	case "$board" in
+	armada-xp-mamba)
+		platform_do_upgrade_linksys "$ARGV"
+		;;
+	*)
+		default_do_upgrade "$ARGV"
+		;;
+	esac
+}
+
+disable_watchdog() {
+	killall watchdog
+	( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+		echo 'Could not disable watchdog'
+		return 1
+	}
+}
+
+append sysupgrade_pre_upgrade disable_watchdog