Initial commit

target/linux/ramips/rt3883/base-files/lib/preinit/04_handle_checksumming

@@ -0,0 +1,30 @@
+# Netgear WNCE2001 has does a checksum check on boot and goes into recovery
+# tftp mode when the check fails.  Initializing the JFFS2 partition triggers
+# this, so we make sure to zero checksum and size to be checksummed before
+# that happens, so this needs to run very early during boot.
+
+do_checksumming_disable() {
+	. /lib/functions.sh
+
+	local board=$(board_name)
+
+	case "$board" in
+	asus,rt-n56u)
+		echo "Board is ASUS RT-N56U, replacing uImage header..."
+		local firmware_mtd=$(find_mtd_part firmware)
+		local rootfs_mtd=$(find_mtd_part rootfs)
+		local rootfs_data_mtd=$(find_mtd_part rootfs_data)
+		local rootfs_len=$(grep \"rootfs\" /proc/mtd | awk -F' ' '{print "0x"$2}')
+		local rootfs_data_len=$(grep \"rootfs_data\" /proc/mtd | awk -F' ' '{print "0x"$2}')
+		local offset=$(echo "$rootfs_len $rootfs_data_len 0x40" | awk -F' ' '{printf "%i",$1-$2-$3}')
+		local signature=$(dd if=$rootfs_mtd skip=$offset bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')
+		if [ "$signature" = "27051956" ]; then
+			dd conv=notrunc if=$rootfs_mtd skip=$offset of=$firmware_mtd bs=1 count=64 2>/dev/null
+		fi
+	;;
+	esac
+
+	return 0
+}
+
+boot_hook_add preinit_main do_checksumming_disable

target/linux/ramips/rt3883/base-files/lib/upgrade/platform.sh

@@ -0,0 +1,20 @@
+#
+# Copyright (C) 2010 OpenWrt.org
+#
+
+PART_NAME=firmware
+REQUIRE_IMAGE_METADATA=1
+
+platform_check_image() {
+	return 0
+}
+
+platform_do_upgrade() {
+	local board=$(board_name)
+
+	case "$board" in
+	*)
+		default_do_upgrade "$1"
+		;;
+	esac
+}