diff --git a/target/linux/ramips/base-files/lib/ramips.sh b/target/linux/ramips/base-files/lib/ramips.sh
index 0fa260b..fbaee22 100755
--- a/target/linux/ramips/base-files/lib/ramips.sh
+++ b/target/linux/ramips/base-files/lib/ramips.sh
@@ -76,7 +76,8 @@ ramips_board_detect() {
 	*"BR-6475nD")
 		name="br-6475nd"
 		;;
-	*"BR-6478AC-v2")
+	*"BR-6478AC-v2"|\
+	*"BR-6478ACV2")
 		name="br-6478ac-v2"
 		;;
 	*"Broadway")
diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index e3bea00..ba1d9fd 100755
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -176,7 +176,8 @@ platform_check_image() {
 		}
 		return 0
 		;;
-	br-6475nd)
+	br-6475nd|\
+	br-6478ac-v2)
 		[ "$magic" != "43535953" ] && {
 			echo "Invalid image type."
 			return 1
diff --git a/target/linux/ramips/dts/BR-6478AC-V2.dts b/target/linux/ramips/dts/BR-6478AC-V2.dts
index ac870cc..ce1054f 100644
--- a/target/linux/ramips/dts/BR-6478AC-V2.dts
+++ b/target/linux/ramips/dts/BR-6478AC-V2.dts
@@ -56,15 +56,36 @@
 		};
 	};
 
+
+	        gpio_export {
+                compatible = "gpio-export";
+                #size-cells = <0>;
+                usb-power {
+                        gpio-export,name="usb-power";
+                        gpio-export,output=<0>;
+                        gpios = <&gpio2 5 0>;  // pin45
+                };
+		};
+
+	
+
+/*
 	usbphy: usbphy {
 		compatible = "mediatek,mt7620-usbphy";
 		#phy-cells = <1>;
 		resets = <&rstctrl 22 &rstctrl 25>;
 		reset-names = "host", "device";
 	};
+*/
 
 };
 
+
+&gpio2 {
+	status = "okay";
+};
+
+
 &spi0 {
 	status = "okay";
 
@@ -164,10 +185,11 @@
 	};
 };
 
-&gsw {
+/* &gsw {
 	mediatek,port4 = "gmac";
 	mediatek,mt7530 = <1>;
 };
+*/
 
 &wmac {
 	ralink,mtd-eeprom = <&factory 0>;
@@ -176,7 +198,7 @@
 &pcie {
 	status = "okay";
 
-	pcie0 {
+	pcie-bridge {
 		mt76@0,0 {
 			reg = <0x0000 0 0 0 0>;
 			device_type = "pci";
diff --git a/target/linux/ramips/image/mt7620.mk b/target/linux/ramips/image/mt7620.mk
index 9454865..a0edfd8 100644
--- a/target/linux/ramips/image/mt7620.mk
+++ b/target/linux/ramips/image/mt7620.mk
@@ -2,11 +2,16 @@
 # MT7620A Profiles
 #
 
 define Build/tplink-header
 	$(STAGING_DIR_HOST)/bin/mktplinkfw2 -a 0x4 -V "ver. 2.0" -B $(1) \
 		-o $@.new -k $@  && mv $@.new $@
 endef
 
+
+define Build/edimax-header
+	$(STAGING_DIR_HOST)/bin/mkedimaximg -i $@ -o $@.new  -s CSYS $(1)  && mv $@.new $@
+endef
+
 define Build/pad-kernel-ex2700
 	cp $@ $@.tmp && dd if=/dev/zero bs=64 count=1 >> $@.tmp \
 		&& dd if=$@.tmp of=$@.new bs=64k conv=sync && truncate -s -64 $@.new \
@@ -417,19 +428,9 @@ TARGET_DEVICES += tiny-ac
 define Device/br-6478ac-v2
   DTS := BR-6478AC-V2
   DEVICE_TITLE := Edimax BR-6478AC-V2
-  BLOCKSIZE := 4k
-  IMAGES += factory.bin
+  BLOCKSIZE := 65536
   IMAGE_SIZE := 7616k
-  IMAGE/sysupgrade.bin := \
-	append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-rootfs | \
-	seama -m "dev=/dev/mtdblock/5" -m "type=firmware" | \
-	pad-rootfs | check-size $$$$(IMAGE_SIZE)
-  IMAGE/factory.bin := \
-	append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | \
-	append-rootfs | pad-rootfs -x 64 | \
-	seama -m "dev=/dev/mtdblock/2" -m "type=firmware" | \
-	seama-seal -m "signature=wapn22_dlink.2013gui_dap1320b" | \
-	check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin := append-kernel | pad-offset $$$$(BLOCKSIZE) 20 | append-rootfs | pad-rootfs -x 20 | check-size $$$$(IMAGE_SIZE) | edimax-header -m RN68 -f 0x70000 -S  0x1100000
   DEVICE_PACKAGES := kmod-mt76
 endef
 TARGET_DEVICES += br-6478ac-v2
diff --git a/target/linux/ramips/patches-4.4/9999-em-br6478acv2.patch b/target/linux/ramips/patches-4.4/9999-em-br6478acv2.patch
new file mode 100644
index 0000000..59c7b5e
--- /dev/null
+++ b/target/linux/ramips/patches-4.4/9999-em-br6478acv2.patch
@@ -0,0 +1,108 @@
+--- a/drivers/mtd/mtdsplit/mtdsplit.c	2017-01-18 03:45:15.345921539 +0000
++++ b/drivers/mtd/mtdsplit/mtdsplit.c	2017-01-18 04:31:27.032704016 +0000
+@@ -95,6 +95,10 @@
+ 		if (type)
+ 			*type = MTDSPLIT_PART_TYPE_JFFS2;
+ 		return 0;
++	} else if (magic == 0x20031985) {
++		if (type)
++			*type = MTDSPLIT_PART_TYPE_JFFS2;
++		return 0;
+ 	} else if (be32_to_cpu(magic) == UBI_EC_MAGIC) {
+ 		if (type)
+ 			*type = MTDSPLIT_PART_TYPE_UBI;
+--- a/drivers/mtd/mtdsplit/mtdsplit_uimage.c	2017-01-13 11:33:11.517379487 +0000
++++ b/drivers/mtd/mtdsplit/mtdsplit_uimage.c	2017-01-18 04:22:42.188040972 +0000
+@@ -53,6 +53,14 @@
+ 	uint8_t		ih_name[IH_NMLEN];	/* Image Name		*/
+ };
+ 
++struct csys_header {
++	uint32_t	cs_magic;
++	uint32_t 	a;
++	uint32_t	b;
++	uint32_t	board_sig;
++	uint32_t 	len;
++};
++
+ static int
+ read_uimage_header(struct mtd_info *mtd, size_t offset, u_char *buf,
+ 		   size_t header_len)
+@@ -127,6 +135,7 @@
+ 		header = (struct uimage_header *)(buf + ret);
+ 
+ 		uimage_size = sizeof(*header) + be32_to_cpu(header->ih_size);
++		uimage_offset= offset + ret;
+ 		if ((offset + uimage_size) > master->size) {
+ 			pr_debug("uImage exceeds MTD device \"%s\"\n",
+ 				 master->name);
+@@ -141,9 +150,8 @@
+ 		goto err_free_buf;
+ 	}
+ 
+-	uimage_offset = offset;
+ 
+-	if (uimage_offset == 0) {
++	if (offset == 0) {
+ 		uimage_part = 0;
+ 		rf_part = 1;
+ 
+@@ -181,8 +189,8 @@
+ 	}
+ 
+ 	parts[uimage_part].name = KERNEL_PART_NAME;
+-	parts[uimage_part].offset = uimage_offset;
+-	parts[uimage_part].size = uimage_size;
++	parts[uimage_part].offset = offset;
++	parts[uimage_part].size = uimage_size+uimage_offset;
+ 
+ 	if (type == MTDSPLIT_PART_TYPE_UBI)
+ 		parts[rf_part].name = UBI_PART_NAME;
+@@ -305,32 +313,41 @@
+  * Edimax
+  **************************************************/
+ 
+-#define FW_EDIMAX_OFFSET	20
+ #define FW_MAGIC_EDIMAX		0x43535953
+ 
+ static ssize_t uimage_find_edimax(u_char *buf, size_t len)
+ {
+ 	struct uimage_header *header;
++	struct csys_header *cheader;
+ 
+-	if (len < FW_EDIMAX_OFFSET + sizeof(*header)) {
++	if (len < sizeof(*cheader) + sizeof(*header)) {
+ 		pr_err("Buffer too small for checking Edimax header\n");
+ 		return -ENOSPC;
+ 	}
+ 
+-	header = (struct uimage_header *)(buf + FW_EDIMAX_OFFSET);
++	cheader = (struct csys_header *)buf;
+ 
+-	switch be32_to_cpu(header->ih_magic) {
++	switch be32_to_cpu(cheader->cs_magic) {
+ 	case FW_MAGIC_EDIMAX:
+ 		break;
+ 	default:
+ 		return -EINVAL;
+ 	}
+ 
++	header = (struct uimage_header *)(buf + sizeof(*cheader));
++
++	switch be32_to_cpu(header->ih_magic) {
++	case IH_MAGIC:
++		break;
++	default:
++		return -EINVAL;
++	}
++
+ 	if (header->ih_os != IH_OS_LINUX ||
+-	    header->ih_type != IH_TYPE_FILESYSTEM)
++	    header->ih_type != IH_TYPE_KERNEL)
+ 		return -EINVAL;
+ 
+-	return FW_EDIMAX_OFFSET;
++	return sizeof(*cheader);
+ }
+ 
+ static int