Re: [PATCH 00/12] arm64: dts: rockchip: Add NanoPi M6 board

["Diederik de Haas" <diederik@cknow-tech.com>]

Hi Joachim,

On Fri Jul 3, 2026 at 10:23 PM CEST, Joachim Eastwood wrote:
> On Fri, 3 Jul 2026 at 13:30, Diederik de Haas <diederik@cknow-tech.com> wrote:
>> On Fri Jul 3, 2026 at 12:07 AM CEST, Joachim Eastwood via B4 Relay wrote:
>> > This patch series add support for the NanoPi M6. This board is very
>> > similar to the NanoPi R6C and R6S boards which are already supported.
>> >
>> > Main differences:
>> > * M.2 M-key slot with PCIe (Also present on R6C)
>> > * M.2 E-key slot with PCIe and USB (from hub)
>> > * 1 additional USB 2.0 port from an on-board USB hub
>> > * RT5616 audio CODEC
>>
>> This seems to be the M6 (2405 aka 'V1')?
> Yes, correct. This patch set is for the original M6 board. V1 if you like.
>
>> Because there is now also a M6V2 (2603), which uses an ES8389 CODEC:
>> https://www.friendlyelec.com/index.php?route=product/product&path=69&product_id=319
> I did notice there was a new version, but I hadn't given it much thought.
>
>> Is it useful to already take the 2 M6 variants into account with this patch set?
> Yes, I think you are right.
>
> How about this setup:
> rk3588s-nanopi-m6.dtsi
> rk3588s-nanopi-m6v1.dts
> rk3588s-nanopi-m6v2.dts
> This mimics the setup for the R6 series boards with rk3588s-nanopi-r6.dtsi
> and rk3588s-nanopi-r6[cs].dts.

Seems fine. You could drop the 'v1' as I only used that to differentiate with
the V2. OTOH, I'm always 'struggling' how to identify the original NanoPC-T6.
I do like consistency, so mimicing the setup for R6 is nice :-)

> Note that I will not make the v2 board part of this patchset since I
> am unable to test it. But as you said we can take it into account now.

Agreed. My concern was about trying to prevent another complete reorganization
once someone decides to upstream support for V2 (2603).

>> https://wiki.friendlyelec.com/wiki/index.php/NanoPi_M6#Schematic.2C_PCB_CAD_File
>> https://wiki.friendlyelec.com/wiki/index.php/NanoPi_M6V2#Schematic.2C_PCB_CAD_File
> I did a quick comparison of the schematics and noticed the following
> differences:
> * New CODEC; ES8389
> * A new "User" button connected to a gpio line.
> * Different USB 2.0 hub: CH334P (may not be relevant for DT)
> * Different USB PD power solution (not relevant for DT)

At the end of the M6V2 product page, there's also a comparison with 'V1':
https://www.friendlyelec.com/image/catalog/description/M6V2_en_13.jpg

It's under the heading 'Comparison', but it's part of the picture so you can't
search for it. Dunny why FriendlyElec does that, but they do it consistently.

Cheers,
  Diederik