Adding support for Orange Pi Zero 3

[Bob McChesney]

On Sun, Nov 26, 2023 at 12:33:51PM +0000, Andre Przywara wrote:
> On Sun, 26 Nov 2023 11:32:35 +0000
> Bob McChesney <bob at electricworry.net> wrote:
> 
> Hi Bob,
> 
> thanks for the reply!
> 
> > Now that there's a working u-boot for the board - I've got two to choose
> > from now :) - I'm going to be concentrating on trying to get the Mali
> > graphics working as it's a requirement for my project. I've got a
> > working kernel (6.1.31 with patches) but I can also see that work's been
> > underway to bring the support to 6.7. I tested 6.7-rc2 today and can't
> > get any output at all on the console after u-boot starts the kernel.
> 
> Yeah, that's because we don't have any video (HDMI) output support
> (something completely unrelated to Mali, which is just a 3D renderer!)
> yet in mainline. Jernej was sitting on *some* patches for a while, but
> didn't have the time to upstream them, and IIUC there is something odd
> to fix first before it's mainline ready.
> There are some rough bits in here, and in other repos floating around:
> https://github.com/jernejsk/linux-1/commits/h616-hdmi-v2

The lack of console output I referred to was over the serial port. I
expected that when I swapped out my modified 6.1.31 kernel for 6.7-rc2
that I would still get serial output but nothing; the dtb in mainline
looks pretty sparse compared to mine.

> 
> Cheers,
> Andre

Regards,
Bob