[PATCH 03/13] usb: musb: Always clear the data toggle bit when configuring ep

Pali Rohár
2020-11-29T16:46:08Z

Without this patch it was done only when U-Boot was compiled with MUSB Host
Controller. But it is needed also for MUSB Device Controller, otherwise
Device Controller does not work.

Signed-off-by: Pali Roh?r <pali@kernel.org>
---
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,
--
2.20.1