From: Bryan Wu <bryan.wu@analog.com>
Date: Mon, 9 Aug 2010 18:57:41 +0000 (-0400)
Subject: usb: musb: setup TXCOUNT for Blackfin musb
X-Git-Tag: v2010.09-rc2~13
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=8dd7a23007ff73dae176aa4628f5c2142d6087dc;p=u-boot

usb: musb: setup TXCOUNT for Blackfin musb

The Blackfin implementation of musb has a TXCOUNT register that needs to
be programmed when transmitting data.

Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/drivers/usb/musb/musb_hcd.c b/drivers/usb/musb/musb_hcd.c
index dd2aa7f27c..f14e12ffaf 100644
--- a/drivers/usb/musb/musb_hcd.c
+++ b/drivers/usb/musb/musb_hcd.c
@@ -987,6 +987,11 @@ int submit_bulk_msg(struct usb_device *dev, unsigned long pipe,
 			nextlen = ((len-txlen) < dev->epmaxpacketout[ep]) ?
 					(len-txlen) : dev->epmaxpacketout[ep];
 
+#ifdef CONFIG_USB_BLACKFIN
+			/* Set the transfer data size */
+			writew(nextlen, &musbr->txcount);
+#endif
+
 			/* Write the data to the FIFO */
 			write_fifo(MUSB_BULK_EP, nextlen,
 					(void *)(((u8 *)buffer) + txlen));