[v1] arm64: dts: freescale: imx93-var-som: update eqos support for MaxLinear PHY

[Andrew Lunn]

On Wed, Jun 04, 2025 at 03:08:09PM +0200, Stefano Radaelli wrote:
> Hi Andrew,
> 
> To clarify more precisely: hw team told me that the required 2 ns
> RGMII delays are
> implemented directly in hardware inside the SOM itself, through passive delay
> elements (filters) placed on the RX and TX lines. There is no reliance on PHY
> strap settings or any kind of delay configuration via registers.
> 
> This means:
> - The delays are fixed and cannot be changed via software.
> - From the point of view of any carrier board, the interface is
> already timing-compliant.

Great. Please add a comment in the DT explaining this. 99% of the time
'rgmii' is wrong, but this is the 1%. We should make it clear this is
not just another cut/paste error, but very intentional and correct
because of the PCB design.

There is a patch to checkpatch.pl i want to introduce in the next
development cycle which will look for 'rgmii', and if found, look on
the line before for a comment including the word 'PCB'. If it finds
'rgmii' without such a comment it will issue a warning. So it would be
nice to avoid that in your correct case.

     Andrew