rk3399-gru-kevin: issues on bringup

[Simon Glass <sjg@chromium.org>]

Hi Marty,

On Thu, 13 Aug 2020 at 13:35, Alper Nebi Yasak <alpernebiyasak@gmail.com> wrote:
>
> Hi Simon, Marty,
>
> I'm interested in getting U-Boot to work with Kevin as well, but don't
> have a Servo (or the willingness to open up the case yet), so I've been
> trying to boot from depthcharge as in README.chromium-chainload.
>
> I don't have a way to see serial output and I see no other signs of
> life. Can you give me a tested configuration that immediately powers-off
> or reboots a Kevin so I can confirm what I'm doing works on the
> chainloading side? I mean I can boot Linux, but trying the same with
> U-Boot just gives me a blank screen even after accounting for a lot of
> things.
>
> Meanwhile, I've wrote some code to automate making depthcharge partition
> images, and to enable the display on Kevin (and perhaps Bob). Since I
> don't know if chainloading works, I don't know if these are broken or
> not either. I'm unsure about sending untested patches to the list, so I
> put them up here if you want to take a look (and maybe test/fix them?):
>
> https://github.com/alpernebbi/u-boot/tree/rk3399-gru-kevin/wip
>
> They're not really things that'd make a non-booting Kevin boot, though.
> I hope at least some of it can be useful in some way.

I am just replying here as you asked for some details on IRC. What
details do you need?

I was intending to try out a kevin if I have one. I will add that to my list.

Regards,
Simon