[PATCH] rk3399: Add basic support for helios64

[Florian Klink]

>It boots fine with current Fedora IoT 34 nightlies, but kernel crashes are
>very regular (sometimes recoverable, sometimes not), which looks to me like
>the same problem that Armbian builds have, logs seem to point to an issue
>with the dmc frequency.
>I've compiled an excerpt of interesting looking logs from a couple of boots
>here (you should be able to comment on the doc as well):
>https://hackmd.io/@lorbus/SyXTj0lXu
>
>Please take a look and let me know what you think.

I've been running eb607cd4957fb0ef97beb2a8293478be6a54240a from
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git
(which is 5.13-rc1, plus a whole bunch of helios64 and more generic
rk3399 fixes).

The system comes up. I couldn't immediately trigger any of the kernel
crashes (except one that regularly occurs on shutdown/reboot), which I
added to the hackmd document.

I think most of the kernel issues are a concern of refining the dtb in
the kernel itself, though, not an uboot issue per se, so not sure if
this should block the inclusion of this patch into u-boot, which seems
to work file (once there's a version with SPDX headers everywhere)

Florian

On 21-03-08 17:29:23, Christian Glombek wrote:
>I've looked into this a bit over the weekend - my current WIP patch can be
>found here:
>https://src.fedoraproject.org/fork/lorbus/rpms/uboot-tools/blob/helios64/f/0001-arm-Add-support-for-Kobol-Helios64-board.patch
>
>It's essentially the entire devicetree used in Armbian, only that I had to
>remove the gpio{1,2,4} initialization since `gpio-hog` doesn't appear to
>work with upstream u-boot.
>It boots fine with current Fedora IoT 34 nightlies, but kernel crashes are
>very regular (sometimes recoverable, sometimes not), which looks to me like
>the same problem that Armbian builds have, logs seem to point to an issue
>with the dmc frequency.
>I've compiled an excerpt of interesting looking logs from a couple of boots
>here (you should be able to comment on the doc as well):
>https://hackmd.io/@lorbus/SyXTj0lXu
>
>Please take a look and let me know what you think.
>
>Best regards,
>Christian

-- 
Florian Klink