* Microchip LAN9252 stand-alone EtherCAT slave controller device tree bindings Required properties: - compatible: Should be "lan9252". - spi-max-frequency : Max spi frequency to use - reg: SPI chip select. Example: ethercat: lan9252@1 { compatible = "lan9252"; spi-max-frequency = <20000000>; reg = <1>; };