PHY/Converter devices that may be used with this MAC:
- Xilinx GMII2RGMII converter ( https://github.com/Xilinx/linux-xlnx/blob/master/Documentation/devicetree/bindings/net/xilinx_gmii2rgmii.txt )
- Xilinx PCS PMA PHY ( https://github.com/Xilinx/linux-xlnx/blob/master/Documentation/devicetree/bindings/net/xilinx-phy.txt )