Without this patch clearing was done only when U-Boot was compiled with MUSB Host Controller. But clearing of data toggle bit is needed also for MUSB Device Controller otherwise Device Controller does not work correctly.
Signed-off-by: Pali Rohár pali@kernel.org Reviewed-by: Lukasz Majewski lukma@denx.de Acked-by: Pavel Machek pavel@ucw.cz --- drivers/usb/musb/musb_core.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 147b2eb929..cc6dc3839d 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -81,10 +81,8 @@ void musb_configure_ep(const struct musb_epinfo *epinfo, u8 cnt) config_fifo(tx, idx, fifoaddr);
csr = readw(&musbr->txcsr); -#if defined(CONFIG_USB_MUSB_HCD) /* clear the data toggle bit */ writew(csr | MUSB_TXCSR_CLRDATATOG, &musbr->txcsr); -#endif /* Flush fifo if required */ if (csr & MUSB_TXCSR_TXPKTRDY) writew(csr | MUSB_TXCSR_FLUSHFIFO, @@ -94,10 +92,8 @@ void musb_configure_ep(const struct musb_epinfo *epinfo, u8 cnt) config_fifo(rx, idx, fifoaddr);
csr = readw(&musbr->rxcsr); -#if defined(CONFIG_USB_MUSB_HCD) /* clear the data toggle bit */ writew(csr | MUSB_RXCSR_CLRDATATOG, &musbr->rxcsr); -#endif /* Flush fifo if required */ if (csr & MUSB_RXCSR_RXPKTRDY) writew(csr | MUSB_RXCSR_FLUSHFIFO,