[PATCH v1 1/2] dt-bindings: ethernet: eswin: add clock sampling control

[Andrew Lunn]

> > You say internal. So the skew is fixed, it is a property of the
> > silicon? If so, why a DT property? Why not just hard code it in the
> > driver? Since it is internal, different boards should not need it set
> > differently?
> > 
> Thanks for the question.
> 
> EIC7700 has two Ethernet MACs. Only eth1 has this internal RXC/RXD skew,
> eth0 does not.
> 
> So this is not a chip-wide constant that can be hardcoded in the driver.
> We need a way to distinguish the two MAC instances, which is why this is
> described per-port in DTS.

I assume the address of the interface is fixed. So you can just key
off that to distinguish the two instances.

Since this is an internal property, not a board property, it is not
clear it actually belongs on DT.

    Andrew