AW: USB problem on beagleboard clone
Sorry :-( With log now. > -Ursprüngliche Nachricht- > Von: linux-usb-ow...@vger.kernel.org > [mailto:linux-usb-ow...@vger.kernel.org] Im Auftrag von > Maximilian Schwerin > Gesendet: Freitag, 14. September 2012 14:26 > An: linux-o...@vger.kernel.org; linux-usb@vger.kernel.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. > > Cheers and thanks, > > Maximilian Schwerin. USB_failures.log Description: USB_failures.log pgpH7fJDZixwI.pgp Description: PGP signature
AW: USB problem on beagleboard clone
Hi, > -Ursprüngliche Nachricht- > Von: Felipe Balbi [mailto:ba...@ti.com] > Gesendet: Freitag, 14. September 2012 15:08 > An: Maximilian Schwerin > Cc: linux-o...@vger.kernel.org; linux-usb@vger.kernel.org > 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-ow...@vger.kernel.org > > > [mailto:linux-usb-ow...@vger.kernel.org] Im Auftrag von > > > Maximilian Schwerin > > > Gesendet: Freitag, 14. September 2012 14:26 > > > An: linux-o...@vger.kernel.org; linux-usb@vger.kernel.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 > 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. Cheers, m. pgp0DDvnCmyjj.pgp Description: PGP signature
AW: USB problem on beagleboard clone
> -Ursprüngliche Nachricht- > Von: Felipe Balbi [mailto:ba...@ti.com] > Gesendet: Freitag, 14. September 2012 15:19 > An: Maximilian Schwerin > Cc: ba...@ti.com; linux-o...@vger.kernel.org; > linux-usb@vger.kernel.org > 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:ba...@ti.com] > > > Gesendet: Freitag, 14. September 2012 15:08 > > > An: Maximilian Schwerin > > > Cc: linux-o...@vger.kernel.org; linux-usb@vger.kernel.org > > > 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-ow...@vger.kernel.org > > > > > [mailto:linux-usb-ow...@vger.kernel.org] Im Auftrag von > > > > > Maximilian Schwerin > > > > > Gesendet: Freitag, 14. September 2012 14:26 > > > > > An: linux-o...@vger.kernel.org; linux-usb@vger.kernel.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 > > > > > > > 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. pgpVYyiE5KsRk.pgp Description: PGP signature
AW: USB problem on beagleboard clone
Hi, > -Ursprüngliche Nachricht- > Von: linux-usb-ow...@vger.kernel.org > [mailto:linux-usb-ow...@vger.kernel.org] Im Auftrag von Paul Walmsley > Gesendet: Mittwoch, 19. September 2012 03:24 > An: Maximilian Schwerin > Cc: linux-o...@vger.kernel.org; linux-usb@vger.kernel.org > Betreff: Re: USB problem on beagleboard clone > > Hi > > On Fri, 14 Sep 2012, Maximilian Schwerin wrote: > > > 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. > > Are these BeagleBoard 3530 or BeagleBoard XM 3730 clones? > > - Paul > -- > To unsubscribe from this list: send the line "unsubscribe > linux-usb" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > They're BeagleBoard XM clones. We're still trying to find out what the real problem is. The problem persists across three separate layouts using the same USB device and application. We're currently trying to see if this is related to MUSB only by using an EHCI port on the same board with the same device and application. Regards, m. pgpaDvtvSobKx.pgp Description: PGP signature
Re: AW: USB problem on beagleboard clone
On Wed, 19 Sep 2012, Maximilian Schwerin wrote: > They're BeagleBoard XM clones. We're still trying to find out what the > real problem is. The problem persists across three separate layouts > using the same USB device and application. We're currently trying to see > if this is related to MUSB only by using an EHCI port on the same board > with the same device and application. Perhaps you might try this patch: http://marc.info/?l=linux-omap&m=132976109928744&w=2 Background is here: http://comments.gmane.org/gmane.linux.ports.arm.omap/71633 The patch is for an EHCI issue, but MUSB is clocked from the same DPLL. - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
AW: AW: USB problem on beagleboard clone
> -Ursprüngliche Nachricht- > Von: Paul Walmsley [mailto:p...@pwsan.com] > Gesendet: Mittwoch, 19. September 2012 18:07 > An: Maximilian Schwerin > Cc: linux-o...@vger.kernel.org; linux-usb@vger.kernel.org > Betreff: Re: AW: USB problem on beagleboard clone > > On Wed, 19 Sep 2012, Maximilian Schwerin wrote: > > > They're BeagleBoard XM clones. We're still trying to find > out what the > > real problem is. The problem persists across three separate layouts > > using the same USB device and application. We're currently > trying to see > > if this is related to MUSB only by using an EHCI port on > the same board > > with the same device and application. > > Perhaps you might try this patch: > > http://marc.info/?l=linux-omap&m=132976109928744&w=2 > > Background is here: > > http://comments.gmane.org/gmane.linux.ports.arm.omap/71633 > > The patch is for an EHCI issue, but MUSB is clocked from the > same DPLL. > > > - Paul > Thanks for the hint. I had this in my 3.2 kernel which also failed. I'll try if adding this to 3.6 has any effect. pgpyjT758fz5b.pgp Description: PGP signature
