Re: status of USB on omap35xx ?

[Tony Lindgren <tony@atomide.com>]

* Steve Sakoman <sakoman@gmail.com> [081211 13:54]:
> On Thu, Dec 11, 2008 at 12:41 PM, Grazvydas Ignotas <notasas@gmail.com> wrote:
> > On Thu, Dec 11, 2008 at 7:38 PM, Steve Sakoman <sakoman@gmail.com> wrote:
> >> On Thu, Dec 11, 2008 at 8:49 AM, Paul Walmsley <paul@booyaka.com> wrote:
> >>> Hi Grazvydas, Steve,
> >>>
> >>> On Thu, 11 Dec 2008, Grazvydas Ignotas wrote:
> >>>
> >>>> > Can you please post whatever patches you need to apply to make it work
> >>>> > occasionally so others can also look at the issue?
> >>>>
> >>>> For pandora, making infinite while loops finite doesn't help much,
> >>>> kernel crashes later on. Steve had this too:
> >>>> http://marc.info/?l=linux-omap&m=122378604027303&w=2
> >>>>
> >>>> I did bisect and found that commit
> >>>> 8b1f0bd44fe490ec631230c8c040753a2bda8caa is causing the hang for me.
> >>>> Reverting this makes EHCI work again on pandora.
> >>>> http://marc.info/?l=linux-omap&m=122453174024860&w=2
> >>>
> >>> Would one of you be willing to run with this patch and send back any debug
> >>> output relating to dpll5_ck ?  (Unfortunately, I don't have access to any
> >>> boards with EHCI hardware, so cannot try it myself)
> >>>
> >>> This will help determine what fix should be applied
> >>
> >> Here you go.  Note that no infinite loop!
> >
> > Ah, so it no longer needs that revert, probably recent clock changes
> > fixed that issue.
> >
> >> ...
> >> Result: no hang at boot, but I still end up with the auto suspend,
> >> though the behavior is slightly different (dmesg output this time
> >> since it contains more debug info):
> >
> > If your host uses PHY mode, have you hacked EXT_PHY_RESET_GPIO* in
> > drivers/usb/host/ehci-omap.c? BTW, if this stuff is really needed, it
> > should go to platform_data..
> 
> I have hacked in the reset GPIO used on Overo.  I agree -- board
> specific stuff has no place in ehci-omap, it really should be platform
> data.

What's the patch you have for the GPIO? At least I don't seem to get
any VBUS on overo EHCI port.

<snip>

Regards,

Tony