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usb: musb: setup TXCOUNT for Blackfin musb

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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>
This commit is contained in:
Bryan Wu 2010-08-09 14:57:41 -04:00 committed by Remy Bohmer
parent 2d941de9d5
commit 8dd7a23007
1 changed files with 5 additions and 0 deletions
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5
drivers/usb/musb/musb_hcd.c
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@ -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));