diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index db6f8b9c19b..cc8ba3c220b 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1438,7 +1438,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum)
 	if (pipenum > 0)
 		r8a66597_write(r8a66597, ~(1 << pipenum), BEMPSTS);
 	if (urb->transfer_buffer) {
-		r8a66597_write_fifo(r8a66597, td->pipe->fifoaddr, buf, size);
+		r8a66597_write_fifo(r8a66597, td->pipe, buf, size);
 		if (!usb_pipebulk(urb->pipe) || td->maxpacket != size)
 			r8a66597_write(r8a66597, BVAL, td->pipe->fifoctr);
 	}
diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
index 25563e9a90b..f28782d20ee 100644
--- a/drivers/usb/host/r8a66597.h
+++ b/drivers/usb/host/r8a66597.h
@@ -201,11 +201,26 @@ static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val,
 	iowrite16(val, r8a66597->reg + offset);
 }
 
+static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
+				 u16 val, u16 pat, unsigned long offset)
+{
+	u16 tmp;
+	tmp = r8a66597_read(r8a66597, offset);
+	tmp = tmp & (~pat);
+	tmp = tmp | val;
+	r8a66597_write(r8a66597, tmp, offset);
+}
+
+#define r8a66597_bclr(r8a66597, val, offset)	\
+			r8a66597_mdfy(r8a66597, 0, val, offset)
+#define r8a66597_bset(r8a66597, val, offset)	\
+			r8a66597_mdfy(r8a66597, val, 0, offset)
+
 static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
-				       unsigned long offset, u16 *buf,
+				       struct r8a66597_pipe *pipe, u16 *buf,
 				       int len)
 {
-	void __iomem *fifoaddr = r8a66597->reg + offset;
+	void __iomem *fifoaddr = r8a66597->reg + pipe->fifoaddr;
 	unsigned long count;
 	unsigned char *pb;
 	int i;
@@ -230,26 +245,15 @@ static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597,
 		iowrite16_rep(fifoaddr, buf, len);
 		if (unlikely(odd)) {
 			buf = &buf[len];
+			if (r8a66597->pdata->wr0_shorted_to_wr1)
+				r8a66597_bclr(r8a66597, MBW_16, pipe->fifosel);
 			iowrite8((unsigned char)*buf, fifoaddr);
+			if (r8a66597->pdata->wr0_shorted_to_wr1)
+				r8a66597_bset(r8a66597, MBW_16, pipe->fifosel);
 		}
 	}
 }
 
-static inline void r8a66597_mdfy(struct r8a66597 *r8a66597,
-				 u16 val, u16 pat, unsigned long offset)
-{
-	u16 tmp;
-	tmp = r8a66597_read(r8a66597, offset);
-	tmp = tmp & (~pat);
-	tmp = tmp | val;
-	r8a66597_write(r8a66597, tmp, offset);
-}
-
-#define r8a66597_bclr(r8a66597, val, offset)	\
-			r8a66597_mdfy(r8a66597, 0, val, offset)
-#define r8a66597_bset(r8a66597, val, offset)	\
-			r8a66597_mdfy(r8a66597, val, 0, offset)
-
 static inline unsigned long get_syscfg_reg(int port)
 {
 	return port == 0 ? SYSCFG0 : SYSCFG1;
diff --git a/include/linux/usb/r8a66597.h b/include/linux/usb/r8a66597.h
index 26d21673405..30e171683a8 100644
--- a/include/linux/usb/r8a66597.h
+++ b/include/linux/usb/r8a66597.h
@@ -42,6 +42,9 @@ struct r8a66597_platdata {
 
 	/* set one = big endian, set zero = little endian */
 	unsigned	endian:1;
+
+	/* (external controller only) set one = WR0_N shorted to WR1_N */
+	unsigned	wr0_shorted_to_wr1:1;
 };
 
 /* Register definitions */