[U-Boot] [PATCH] usb: musb: setup TXCOUNT for Blackfin musb

[Mike Frysinger]

From: Bryan Wu <bryan.wu at analog.com>

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

Signed-off-by: Bryan Wu <bryan.wu at analog.com>
Signed-off-by: Cliff Cai <cliff.cai at analog.com>
Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
 drivers/usb/musb/musb_hcd.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/musb/musb_hcd.c b/drivers/usb/musb/musb_hcd.c
index dd2aa7f..f14e12f 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));
-- 
1.7.2