[PATCH net-next 1/2] dt-bindings: net: econet: add EN751221 ethernet

[Matheus Sampaio Queiroga]

> That is a very unusual phy-mode. Is there a reason this is used in the
> example?
>
> 	Andrew

the GDM1 and GDM2 behave something similar to the newer Airoha, we have an MT7530 connected to the GDM1 as internal mode, and the GDM2 is also an internal one that communicates with the xPON and xDSL subsystem.

the en751221 has two mt7530 switches, the dsa0 limited to 10/100Mbps and a dsa2 1GbE connected to port 5 of the dsa1 in cascaded mode, but it varies from chip to chip