On 11/6/19 7:27 PM, Patrick DELAUNAY wrote: > Hi, Hi,
[...] >>> diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index >>> 51023b0c2c..3086411fc4 100644 >>> --- a/drivers/usb/host/dwc2.c >>> +++ b/drivers/usb/host/dwc2.c >>> @@ -1149,6 +1149,8 @@ static int dwc2_reset(struct udevice *dev) >>> return ret; >>> } >>> >>> + reset_assert_bulk(&priv->resets); >>> + udelay(2); >> >> Why is there a 2 uS delay ? > > I think: no real reason to have 2 us.... > > It was jus a reasonable time to be sure that the device reset is correctly > performed, the reset signal is propagated.... > > but perhaps that no delay is working... > I can test without delay if you prefer... > > PS: I use the same value than DWC2 gadget driver: > Added by my commit c2c74f97afff Isn't there a way to poll the IP to determine whether the reset completed ? [...] -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
