AW: USB problem on beagleboard clone

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> -----Ursprüngliche Nachricht-----
> Von: Felipe Balbi [mailto:balbi@xxxxxx] 
> Gesendet: Freitag, 14. September 2012 15:19
> An: Maximilian Schwerin
> Cc: balbi@xxxxxx; linux-omap@xxxxxxxxxxxxxxx; 
> linux-usb@xxxxxxxxxxxxxxx
> Betreff: Re: USB problem on beagleboard clone (PGP: Plain, 
> Unable to verify signature)
> 
> On Fri, Sep 14, 2012 at 03:21:47PM +0200, Maximilian Schwerin wrote:
> > Hi,
> > 
> > > -----Ursprüngliche Nachricht-----
> > > Von: Felipe Balbi [mailto:balbi@xxxxxx] 
> > > Gesendet: Freitag, 14. September 2012 15:08
> > > An: Maximilian Schwerin
> > > Cc: linux-omap@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx
> > > Betreff: Re: USB problem on beagleboard clone (PGP: Plain, 
> > > Unable to verify signature)
> > > 
> > > Hi,
> > > 
> > > On Fri, Sep 14, 2012 at 02:57:49PM +0200, Maximilian 
> Schwerin wrote:
> > > > Sorry :-( With log now.
> > > > 
> > > > > -----Ursprüngliche Nachricht-----
> > > > > Von: linux-usb-owner@xxxxxxxxxxxxxxx 
> > > > > [mailto:linux-usb-owner@xxxxxxxxxxxxxxx] Im Auftrag von 
> > > > > Maximilian Schwerin
> > > > > Gesendet: Freitag, 14. September 2012 14:26
> > > > > An: linux-omap@xxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx
> > > > > 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
> > > 
> > 
> > I'm still on 3.3 but am planing to go to a newer version. 
> We used the
> > OTG port so we would not need another chip on a rather small board.
> 
> And which chip are you talking about ? You already have 
> LAN9514 on your
> board anyway...
> 
> -- 
> balbi
> 

How would I connect the OMAP to the LAN9514 without a PHY?

m.

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