[U-Boot] [PATCH 1/2 v2] Exynos5800: The Peach-Pi board does not have a Parade video bridge

[Simon Glass]

Hi,

On 5 December 2014 at 07:24, Ajay kumar <ajaynumb at gmail.com> wrote:
> Hi All,
>
> On Tue, Dec 2, 2014 at 2:00 AM, Simon Glass <sjg at chromium.org> wrote:
>> Hi Sjoerd,
>>
>> On 1 December 2014 at 13:25, Sjoerd Simons
>> <sjoerd.simons at collabora.co.uk> wrote:
>>> On Mon, 2014-12-01 at 13:09 -0700, Simon Glass wrote:
>>>> +Akshay
>>>>
>>>> Hi Sjoerd,
>>>>
>>>> On 1 December 2014 at 03:03, Sjoerd Simons
>>>> <sjoerd.simons at collabora.co.uk> wrote:
>>>> > Hey Simon,
>>>> >
>>>> > On Sun, 2014-11-30 at 11:56 -0700, Simon Glass wrote:
>>>> >> On 27 November 2014 at 08:08, Sjoerd Simons
>>>> >> <sjoerd.simons at collabora.co.uk> wrote:
>>>> >> > Unlike the Peach-Pit board, there is no parade edp to lvds bridge on the
>>>> >> > Pi. So drop it from  device-tree
>>>> >> >
>>>> >> > Signed-off-by: Sjoerd Simons <sjoerd.simons at collabora.co.uk>
>>>> >> > ---
>>>> >> >  Changes since v1: Only modify the DTB
>>>> >> >
>>>> >> >  arch/arm/dts/exynos5800-peach-pi.dts | 5 -----
>>>> >> >  1 file changed, 5 deletions(-)
>>>> >>
>>>> >> Acked-by: Simon Glass <sjg at chromium.org>
>>>> >>
>>>> >> Tested on snow, pit, pi (display does not yet work on Pi).
>>>> >
>>>> > Just to be clear, in your testing does the display not work on Pi? It
>>>> > seems to be ok here (with u-boot starting chainloaded from one of the
>>>> > KERN partitions)
>>>>
>>>> That's right, not in U-Boot. I think this is because some GPIOs need
>>>> to be enabled to turn on the backlight etc. Maybe you have an EC which
>>>> turns these on automatically?
>>>>
>>>> If current mainline is supposed to make the display work on Pi then I
>>>> need to do some debugging. Please let me know.
>>>
>>> It does work on my machine, so i was wondering if it's a setup
>>> difference. I'm using the chained u-boot method (iotw the standard
>>> chromeos u-boot in flash starts main-line u-boot from mmc/SD), which
>>> might well mean that the GPIOs you're referring to are still turned on
>>> by the first u-boot (which it has to do to show me the unverified boot
>>> warning screen)?
>>
>> Yes that's right. Maybe Akshay / Ajay have ideas, or otherwise I can
>> add this. I think it is two GPIOs, but it might be TPSCHROME also.
> Now, I have added support for peach_pi display in u-boot.
> Kindly check the patches.

It seems that these have not been applied. So Pi is not in a working
state in mainline.

When can these be applied please?

There is also the rpll_sdiv patch.

I found this when testing later patches.

Regards,
Simon