From: Marek Vasut <marek.vasut@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1
Date: Tue, 26 Jun 2012 01:47:54 +0200 [thread overview]
Message-ID: <201206260147.54219.marek.vasut@gmail.com> (raw)
In-Reply-To: <4FE88833.1010203@wwwdotorg.org>
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@nvidia.com>
>
> Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Ok, it's icky nvidia stuff :-)
Will you apply it? I'm good with the current shape.
Best regards,
Marek Vasut
next prev parent reply other threads:[~2012-06-25 23:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-25 6:40 [U-Boot] [PATCH v5 1/1] tegra: usb: Fix device enumeration problem of USB1 Jim Lin
2012-06-25 15:48 ` Stephen Warren
2012-06-25 23:47 ` Marek Vasut [this message]
2012-06-25 23:56 ` Tom Warren
2012-06-26 1:05 ` Marek Vasut
2012-06-27 19:52 ` Tom Warren
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