[U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1
Marek Vasut
marek.vasut at gmail.com
Tue Jun 26 03:05:42 CEST 2012
Dear Tom Warren,
> Marek,
>
> > -----Original Message-----
> > From: Marek Vasut [mailto:marek.vasut at gmail.com]
> > Sent: Monday, June 25, 2012 4:48 PM
> > To: Stephen Warren
> > Cc: Jim Lin; 'u-boot at lists.denx.de'; Tom Warren
> > Subject: Re: [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of
> > USB1
> >
> > Dear Stephen Warren,
> >
> > > On 06/25/2012 12:40 AM, Jim Lin wrote:
> > > > A known hardware issue of USB1 port where bit 1 (connect status
> > > > change) of PORTSC register will be set after issuing Port Reset
> > > > (like "usb reset" in u-boot command line).
> > > > This will be treated as an error and stops later device enumeration.
> > > >
> > > > Therefore we clear that bit after Port Reset in order to proceed
> > > > later device enumeration.
> > > >
> > > > Signed-off-by: Jim Lin <jilin at nvidia.com>
> > >
> > > Acked-by: Stephen Warren <swarren at wwwdotorg.org>
> >
> > Ok, it's icky nvidia stuff :-)
> >
> > Will you apply it? I'm good with the current shape.
>
> This will be applied to u-boot-tegra/next as soon as I'm done validating
> Allen's SPL changes.
Good, I'm sure I'm leaving it in good hands :)
Thanks Tom!
> Tom
>
> > Best regards,
> > Marek Vasut
Best regards,
Marek Vasut
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