* MDIO IO device

Refer to Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml

* TBI Internal MDIO bus

Refer to Documentation/devicetree/bindings/net/fsl,gianfar-mdio.yaml

* Gianfar-compatible ethernet nodes

Refer to Documentation/devicetree/bindings/net/fsl,gianfar.yaml

* Gianfar PTP clock nodes

Refer to Documentation/devicetree/bindings/ptp/fsl,ptp.yaml