usb: renesas_usbhs: add support for SUDMAC

The SUDMAC uses 8-bit width only. So, when the driver uses SUDMAC,
we have to clear the MBW_32.

Signed-off-by: Yoshihiro Shimoda <[e-mail]>
Signed-off-by: Felipe Balbi <[e-mail]>

drivers/usb/renesas_usbhs/fifo.c

···
 #define usbhsf_get_cfifo(p)	(&((p)->fifo_info.cfifo))
 #define usbhsf_get_d0fifo(p)	(&((p)->fifo_info.d0fifo))
 #define usbhsf_get_d1fifo(p)	(&((p)->fifo_info.d1fifo))
+#define usbhsf_is_cfifo(p, f)	(usbhsf_get_cfifo(p) == f)
 
 #define usbhsf_fifo_is_busy(f)	((f)->pipe) /* see usbhs_pipe_select_fifo */
 
···
 	}
 
 	/* "base" will be used below  */
-	usbhs_write(priv, fifo->sel, base | MBW_32);
+	if (usbhs_get_dparam(priv, has_sudmac) && !usbhsf_is_cfifo(priv, fifo))
+		usbhs_write(priv, fifo->sel, base);
+	else
+		usbhs_write(priv, fifo->sel, base | MBW_32);
 
 	/* check ISEL and CURPIPE value */
 	while (timeout--) {

include/linux/usb/renesas_usbhs.h

···
 	 * option:
 	 */
 	u32 has_otg:1; /* for controlling PWEN/EXTLP */
+	u32 has_sudmac:1; /* for SUDMAC */
 };
 
 /*