[U-Boot] [PATCH] usb: increase delay after port reset

Marek Vasut marek.vasut at gmail.com
Tue Apr 3 18:16:35 CEST 2012


Dear Stefano Babic,

> On 02/04/2012 21:00, Ilya Yanok wrote:
> > Hi Marek, Stefano,
> 
> Hi Marek,
> 
> > On 02.04.2012 21:29, Marek Vasut wrote:
> >>> In our setup (OMAP3 EHCI host, keyboard, mouse mass storage and BT
> >>> dongle devices connected via several hubs) keyboard fails to initialize
> >>> during the bus scan (stalled endpoint while get_descriptor/64) and
> >>> after that keyboard is unusable (even in Linux) until power off/on.
> >>> 
> >>> Increasing the delay after port reset from 200ms to 260ms solves this
> >>> problem.
> >> 
> >> Do we still have this problem?
> > 
> > Sorry, I'm not working with this board any more. I'm ccing Stefano,
> > probably he can answer.
> 
> USB seems not working on this board, but the patch does not help. No
> peripheral are found after bus scan, even if the delay is increased by
> the patch. I will suggest to not apply this patch for the release and I
> will try to investigate what is gone wrong on this board.
> 
> Best regards,
> Stefano Babic

Ok, discarding from patchwork. Thanks!

Best regards,
Marek Vasut


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