1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/apm821xx/base-files/lib/upgrade/wdbook.sh b/target/linux/apm821xx/base-files/lib/upgrade/wdbook.sh
new file mode 100644
index 0000000000..d7347516cb
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/upgrade/wdbook.sh
@@ -0,0 +1,36 @@
+. /lib/functions.sh
+
+get_magic_at() {
+	local file="$1"
+	local pos="$2"
+	get_image "$file" | dd bs=1 count=2 skip="$pos" 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
+}
+
+mbl_do_platform_check() {
+	local board="$1"
+	local file="$2"
+	local magic
+
+	magic=$(get_magic_at "$file" 510)
+
+	[ "$magic" != "55aa" ] && {
+		echo "Failed to verify MBR boot signature."
+		return 1
+	}
+
+	return 0;
+}
+
+mbl_do_upgrade() {
+	sync
+	get_image "$1" | dd of=/dev/sda bs=2M conv=fsync
+	sleep 1
+}
+
+mbl_copy_config() {
+	mkdir -p /boot
+	[ -f /boot/uImage ] || mount -t ext4 -o rw,noatime /dev/sda1 /boot
+	cp -af "$CONF_TAR" /boot/
+	sync
+	umount /boot
+}