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 <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
git-mirror · Jan 24, 2012 · 5ea4399 · 5ea4399
1 parent 53069af
commit 5ea4399
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
@@ -23,6 +23,7 @@
 #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 */
 
@@ -305,7 +306,10 @@ static int usbhsf_fifo_select(struct usbhs_pipe *pipe,
 	}
 
 	/* "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--) {

diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
@@ -149,6 +149,7 @@ struct renesas_usbhs_driver_param {
 	 * option:
 	 */
 	u32 has_otg:1; /* for controlling PWEN/EXTLP */
+	u32 has_sudmac:1; /* for SUDMAC */
 };
 
 /*
-Original file line number
+Diff line change
@@ Expand Up / @@ -149,6 +149,7 @@ struct renesas_usbhs_driver_param { @@
     	 * option:
     	 */
     	u32 has_otg:1; /* for controlling PWEN/EXTLP */
+    	u32 has_sudmac:1; /* for SUDMAC */
     };
     /*
@@ Expand Down @@