Re: USB problem on beagleboard clone

[Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>]

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Hi,

On Fri, Sep 14, 2012 at 02:57:49PM +0200, Maximilian Schwerin wrote:
> Sorry :-( With log now.
> 
> > -----Ursprüngliche Nachricht-----
> > Von: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org 
> > [mailto:linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org] Im Auftrag von 
> > Maximilian Schwerin
> > Gesendet: Freitag, 14. September 2012 14:26
> > An: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> > Betreff: USB problem on beagleboard clone (PGP: Plain, Signed)
> > 
> > Hi all,
> > 
> > we've designed two beagle board clones (two different 
> > layouts) for a customer. After quite some time without any 
> > problems they are now seeing USB problems on some of the 
> > boards. I have so far not been able to reproduce the problem...
> > 
> > The USB port of the OMAP the problems appear on is connected 
> > through a TPS65950 to a LAN9514 USB Hub + Ethernet Chip. 
> > Attached is the kernel output. I'm not even sure if this is 
> > related to our board, or if this might be a misbehaving device?!
> > 
> > If someone has an idea what this could be and what I could do 
> > to fix or at least further debug the problem please speak up.

I have never seen that error before on any of the boards I have. One
question though, if the port is always Host, why are you using the OTG
subsystem instead of the actual Host Subsystem which has an EHCI
controller ?

-- 
balbi

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