Reset endpoint data toggle would lead to failure for musb RTL version 1.9 on blackfin.
Signed-off-by: Scott Jiang <[email protected]> --- drivers/usb/musb/musb_host.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index a9695f5..0bc59fd 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -590,7 +590,10 @@ musb_rx_reinit(struct musb *musb, struct musb_qh *qh, struct musb_hw_ep *ep) WARNING("rx%d, packet/%d ready?\n", ep->epnum, musb_readw(ep->regs, MUSB_RXCOUNT)); - musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG); + if (csr & MUSB_TXCSR_MODE) + musb_h_flush_rxfifo(ep, MUSB_RXCSR_CLRDATATOG); + else + musb_h_flush_rxfifo(ep, 0); } /* target addr and (for multipoint) hub addr/port */ @@ -786,7 +789,7 @@ static void musb_ep_program(struct musb *musb, u8 epnum, if (usb_gettoggle(urb->dev, qh->epnum, 1)) csr |= MUSB_TXCSR_H_WR_DATATOGGLE | MUSB_TXCSR_H_DATATOGGLE; - else + else if (csr & MUSB_TXCSR_MODE) csr |= MUSB_TXCSR_CLRDATATOG; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
