diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 40c2f7a4f8fb..5c9c04d7aa76 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -781,7 +781,7 @@ static void irq_ep0_write(struct m66592_ep *ep, struct m66592_request *req)
 	/* write fifo */
 	if (req->req.buf) {
 		if (size > 0)
-			m66592_write_fifo(m66592, ep->fifoaddr, buf, size);
+			m66592_write_fifo(m66592, ep, buf, size);
 		if ((size == 0) || ((size % ep->ep.maxpacket) != 0))
 			m66592_bset(m66592, M66592_BVAL, ep->fifoctr);
 	}
@@ -827,7 +827,7 @@ static void irq_packet_write(struct m66592_ep *ep, struct m66592_request *req)
 
 	/* write fifo */
 	if (req->req.buf) {
-		m66592_write_fifo(m66592, ep->fifoaddr, buf, size);
+		m66592_write_fifo(m66592, ep, buf, size);
 		if ((size == 0)
 				|| ((size % ep->ep.maxpacket) != 0)
 				|| ((bufsize != ep->ep.maxpacket)
diff --git a/drivers/usb/gadget/m66592-udc.h b/drivers/usb/gadget/m66592-udc.h
index b85e05b2e97b..7b93d579af37 100644
--- a/drivers/usb/gadget/m66592-udc.h
+++ b/drivers/usb/gadget/m66592-udc.h
@@ -561,11 +561,26 @@ static inline void m66592_write(struct m66592 *m66592, u16 val,
 	iowrite16(val, m66592->reg + offset);
 }
 
+static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,
+		unsigned long offset)
+{
+	u16 tmp;
+	tmp = m66592_read(m66592, offset);
+	tmp = tmp & (~pat);
+	tmp = tmp | val;
+	m66592_write(m66592, tmp, offset);
+}
+
+#define m66592_bclr(m66592, val, offset)	\
+			m66592_mdfy(m66592, 0, val, offset)
+#define m66592_bset(m66592, val, offset)	\
+			m66592_mdfy(m66592, val, 0, offset)
+
 static inline void m66592_write_fifo(struct m66592 *m66592,
-		unsigned long offset,
+		struct m66592_ep *ep,
 		void *buf, unsigned long len)
 {
-	void __iomem *fifoaddr = m66592->reg + offset;
+	void __iomem *fifoaddr = m66592->reg + ep->fifoaddr;
 
 	if (m66592->pdata->on_chip) {
 		unsigned long count;
@@ -591,26 +606,15 @@ static inline void m66592_write_fifo(struct m66592 *m66592,
 		iowrite16_rep(fifoaddr, buf, len);
 		if (odd) {
 			unsigned char *p = buf + len*2;
+			if (m66592->pdata->wr0_shorted_to_wr1)
+				m66592_bclr(m66592, M66592_MBW_16, ep->fifosel);
 			iowrite8(*p, fifoaddr);
+			if (m66592->pdata->wr0_shorted_to_wr1)
+				m66592_bset(m66592, M66592_MBW_16, ep->fifosel);
 		}
 	}
 }
 
-static inline void m66592_mdfy(struct m66592 *m66592, u16 val, u16 pat,
-		unsigned long offset)
-{
-	u16 tmp;
-	tmp = m66592_read(m66592, offset);
-	tmp = tmp & (~pat);
-	tmp = tmp | val;
-	m66592_write(m66592, tmp, offset);
-}
-
-#define m66592_bclr(m66592, val, offset)	\
-			m66592_mdfy(m66592, 0, val, offset)
-#define m66592_bset(m66592, val, offset)	\
-			m66592_mdfy(m66592, val, 0, offset)
-
 #endif	/* ifndef __M66592_UDC_H__ */
 
 
diff --git a/include/linux/usb/m66592.h b/include/linux/usb/m66592.h
index cda9625e7df0..a4ba31ab2fed 100644
--- a/include/linux/usb/m66592.h
+++ b/include/linux/usb/m66592.h
@@ -38,6 +38,8 @@ struct m66592_platdata {
 	/* (external controller only) one = 3.3V, zero = 1.5V */
 	unsigned	vif:1;
 
+	/* (external controller only) set one = WR0_N shorted to WR1_N */
+	unsigned	wr0_shorted_to_wr1:1;
 };
 
 #endif /* __LINUX_USB_M66592_H */