[U-Boot] [PATCH v2 0/19] tegra: Add display driver and LCD support for Seaboard

Simon Glass
2012-06-27T05:11:31Z

Hi Tom,

On Mon, Jun 25, 2012 at 2:03 PM, Tom Warren <TWarren@nvidia.com> wrote:

> Simon,
>
> > -----Original Message-----
> > From: Stephen Warren [mailto:swarren at wwwdotorg.org]
> > Sent: Wednesday, June 13, 2012 3:58 PM
> > To: Simon Glass
> > Cc: U-Boot Mailing List; Tom Warren
> > Subject: Re: [PATCH v2 0/19] tegra: Add display driver and LCD support
> for
> > Seaboard
> >
> > On 06/13/2012 10:19 AM, Simon Glass wrote:
> > > This series adds support for the Tegra2x's display peripheral. This
> > > supports the LCD display on Seaboard and we use this to enable console
> > > output in U-Boot on the LCD.
> >
> > Simon,
> >
> > This series doesn't apply to u-boot-tegra/master cleanly; there are a
> couple
> > trivial conflicts in arch/arm/cpu/armv7/tegra2/Makefile to resolve, but I
> > had to apply the final patch completely by hand.
> >
> > When I run the resultant binary, I see the LCD backlight turn on, but the
> > image on the LCD is wrong; it starts completely black without any text
> > showing, then slowly fills in to white/gray with many horizontal and
> > vertical black lines; I guess the LCD timing is incorrect - are there
> > multiple different LCD models? Note that I am using a real Seaboard not a
> > Springbank for this test.
>
> I don't see Stephen's LCD problems, but I don't see clear text on my
> Seaboard T20-A03 dev system LCD, either. The text is blurred / almost
> unreadable, especially the last line (cmd prompt). I don't know if it's the
> scrolling change or the cache change, as previous incarnations (in the
> Google repo, at least) were just fine. Power-cycling doesn't fix it. I
> didn't test Ventana or Harmony.
>
> Please update the patchset so it (a) applies to u-boot-tegra/master and/or
> /next, and (b) fixes the text corruption on the LCD.
>

Yes will do.

I am not sure about the text corruption as I didn't see that, but perhaps
the rebase has caused something to change. Will take a look.

Regards
Simon

>
> Tom
> --
> nvpublic
>