From 6dd30af0fa5c2f509f6f789789151268bdfcde0c Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Wed, 10 Jul 2013 03:16:43 +0200
Subject: usb: mv_udc: Add bounce buffer

The requests sent to the controller are not properly cache aligned
most of the time, thus implement a simple bounce buffer to avoid
problem with cache.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Lei Wen <leiwen@marvell.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
---
 include/usb/mv_udc.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'include/usb')

diff --git a/include/usb/mv_udc.h b/include/usb/mv_udc.h
index c1761b0724..c71516cf6d 100644
--- a/include/usb/mv_udc.h
+++ b/include/usb/mv_udc.h
@@ -66,9 +66,13 @@ struct mv_udc {
 
 struct mv_ep {
 	struct usb_ep ep;
-	struct usb_request req;
 	struct list_head queue;
 	const struct usb_endpoint_descriptor *desc;
+
+	struct usb_request req;
+	uint8_t *b_buf;
+	uint32_t b_len;
+	uint8_t b_fast[64] __aligned(ARCH_DMA_MINALIGN);
 };
 
 struct mv_drv {
-- 
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