add sysupgrade support

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

SVN-Revision: 41630

target/linux/mvebu/base-files/lib/preinit/81_linksys_syscfg

@@ -0,0 +1,27 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+
+preinit_mount_syscfg() {
+
+	. /lib/functions.sh
+	. /lib/mvebu.sh
+
+	case $(mvebu_board_name) in
+	armada-xp-mamba)
+		mkdir /tmp/syscfg
+		ubiattach -p /dev/mtd8
+		mount -t ubifs ubi1:syscfg /tmp/syscfg
+		[ -f /tmp/syscfg/sysupgrade.tgz ] && {
+		echo "- config restore -"
+		cd /
+		mv /tmp/syscfg/sysupgrade.tgz /tmp
+		tar xzf /tmp/sysupgrade.tgz
+		rm -f /tmp/sysupgrade.tgz
+		sync
+		}
+		;;
+	esac
+}
+
+boot_hook_add preinit_main preinit_mount_syscfg

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

@@ -0,0 +1,54 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+
+linksys_get_target_firmware() {
+	cur_boot_part=`/usr/sbin/fw_printenv -n boot_part`
+	target_firmware=""
+	if [ "$cur_boot_part" = "1" ]
+	then
+		# current primary boot - update alt boot
+		target_firmware="kernel2"
+		fw_setenv boot_part 2
+		fw_setenv bootcmd "run altnandboot"
+	elif [ "$cur_boot_part" = "2" ]
+	then
+		# current alt boot - update primary boot
+		target_firmware="kernel1"
+		fw_setenv boot_part 1
+		fw_setenv bootcmd "run nandboot"
+	fi
+
+	echo "$target_firmware"
+}
+
+platform_do_upgrade_linksys() {
+	local magic_long="$(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
+
+	# we don't know, what filesystem does the other partition use,
+	# nuke it tobe safe
+	mtd erase $part_label
+	get_image "$1" | mtd -n 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"
+
+	[ -f /tmp/sysupgrade.tgz ] && {
+		cp /tmp/sysupgrade.tgz /tmp/syscfg/sysupgrade.tgz
+	}
+}
+
+append sysupgrade_pre_upgrade linksys_preupgrade

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