Force full-speed (12 Mbit/s) operation if CONFIG_USB_GADGET_DUALSPEED is not defined.
The controller is capable of high-speed (480 Mbit/s) operation, but some designs may require the use of lower-speed operation.
Signed-off-by: Eric Nelson eric.nelson@boundarydevices.com --- drivers/usb/gadget/ci_udc.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 2572b34..dbbeff7 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -766,6 +766,7 @@ void udc_disconnect(void)
static int ci_pullup(struct usb_gadget *gadget, int is_on) { + u32 regval; struct ci_udc *udc = (struct ci_udc *)controller.ctrl->hcor; if (is_on) { /* RESET */ @@ -777,6 +778,11 @@ static int ci_pullup(struct usb_gadget *gadget, int is_on) /* select DEVICE mode */ writel(USBMODE_DEVICE, &udc->usbmode);
+#if !defined(CONFIG_USB_GADGET_DUALSPEED) && defined(CONFIG_MX6) + /* Port force Full-Speed Connect */ + setbits_le32(&udc->portsc, PFSC); +#endif + writel(0xffffffff, &udc->epflush);
/* Turn on the USB connection by enabling the pullup resistor */