From e206799370f77097a29577599960b7f123f61b8c Mon Sep 17 00:00:00 2001 From: Eric Nelson Date: Sun, 28 Sep 2014 18:35:14 -0700 Subject: [PATCH] usb: ci_udc: respect CONFIG_USB_GADGET_DUALSPEED 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 --- drivers/usb/gadget/ci_udc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 2572b346eb..b0ef35e745 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -777,6 +777,11 @@ 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) + /* 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 */ -- 2.39.5