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@xxxxxxxxxxx>
---
drivers/usb/renesas_usbhs/fifo.c | 6 +++++-
include/linux/usb/renesas_usbhs.h | 1 +
2 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index ffdf5d1..918a1da 100644
--- 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 */
@@ -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--) {
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index e5a40c3..f60db75 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -141,6 +141,7 @@ struct renesas_usbhs_driver_param {
* option:
*/
u32 has_otg:1; /* for controlling PWEN/EXTLP */
+ u32 has_sudmac:1; /* for SUDMAC */
};
/*
--
1.7.1
--
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