On Sun, Apr 14, 2024 at 02:58:32PM +0200, Josua Mayer wrote:
> Add bindings for SolidRun boards based on CN9130 SoM.
>
> Three boards are added in total:
> - Clearfog Base
> - Clearfog Pro
> - SolidWAN
> The Clearfog boards are identical to the older Armada 388 based boards,
> upgraded with a new SoM and SoC.
> However the feature set and performance characteristics are different,
> therefore compatible strings from armada 388 versions are not included.
>
> SolidWAN uses the same SoM adding a southbridge on the carrier.
>
> Since 2019 there are bindings in-tree for two boards based on cn9130 and
> 9131. These are extremely verbose by listing cn9132, cn9131, cn9130,
> ap807-quad, ap807 for the SoC alone.
> CN9130 SoC combines an application processor (ap807) and a
> communication processor (cp115) in a single package.
>
> The communication processor (short CP) is also available separately as a
> southbridge. It only functions in combination with the CN9130 SoC.
> Complete systems adding one or two southbridges are by convention called
> CN9131 and CN9132 respectively.
> Despite different naming all systems are built around the same SoC.
> Therefore marvell,cn9131 and marvell,cn9132 can be omitted. The number
> of CPs is part of a board's BoM and can be reflected in the board
> compatible string instead.
>
> Existing bindings also describe cn9130 as a specialisation of
> ap807-quad. Usually board-level compatibles stop at the SoC without
> going into silicon versions or individual dies.
> There is no programming model at this layer, and in particular not for
> parts of an SoC. Therefore the ap compatibles can also be omitted.
>
> Signed-off-by: Josua Mayer <josua@xxxxxxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew
