Skip to contentSkip to conversation

usb: renesas_usbhs: add support for SUDMAC

PATCH Applied Shimoda, Yoshihiro 2 participants 2 messages Jan 5, 2012 – Jan 24, 2012

Subsystems (2)
USB SuperH
lore
Share & tools
lore

Shimoda, Yoshihiro

author
#0 lore raw

PATCH v2 2/2 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 <[email protected]>

---
about v2:
- No change

 drivers/usb/renesas_usbhs/fifo.c  |    6 +++++-
 include/linux/usb/renesas_usbhs.h |    1 +
 2 files changed, 6 insertions(+), 1 deletions(-)
drivers/usb/renesas_usbhs/fifo.c +5 -1
index ffdf5d1..918a1da 100644
@@ -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 */
 

@@ -304,7 +305,10 @@ 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--) {
include/linux/usb/renesas_usbhs.h +1 -0
index e5a40c3..f60db75 100644
@@ -141,6 +141,7 @@ struct renesas_usbhs_driver_param {
 	 * option:
 	 */
 	u32 has_otg:1; /* for controlling PWEN/EXTLP */
+	u32 has_sudmac:1; /* for SUDMAC */
 };
 
 /*
Signature · 1 line
1.7.1