avr32: add sysupgrade support

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 35982

diff --git a/target/linux/avr32/base-files/lib/upgrade/platform.sh b/target/linux/avr32/base-files/lib/upgrade/platform.sh
new file mode 100755 (executable)
index 0000000..00ad863
--- /dev/null
+++ b/target/linux/avr32/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2013 OpenWrt.org
+#
+
+PART_NAME=firmware
+
+platform_check_image() {
+       local magic="$(get_magic_long "$1")"
+
+       [ "$ARGC" -gt 1 ] && return 1
+
+       [ "$magic" != "27051956" ] && {
+               echo "Invalid image type."
+               return 1
+       }
+
+       return 0
+}
+
+disable_watchdog() {
+       killall watchdog
+       ( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+               echo 'Could not disable watchdog'
+               return 1
+       }
+}
+
+append sysupgrade_pre_upgrade disable_watchdog