* Wiznet w5x00 This is a standalone 10/100 MBit Ethernet controller with SPI interface. For each device connected to a SPI bus, define a child node within the SPI master node. Required properties: - compatible: Should be one of the following strings: "wiznet,w5100" "wiznet,w5200" "wiznet,w5500" - reg: Specify the SPI chip select the chip is wired to. - interrupts: Specify the interrupt index within the interrupt controller (referred to above in interrupt-parent) and interrupt type. w5x00 natively generates falling edge interrupts, however, additional board logic might invert the signal. - pinctrl-names: List of assigned state names, see pinctrl binding documentation. - pinctrl-0: List of phandles to configure the GPIO pin used as interrupt line, see also generic and your platform specific pinctrl binding documentation. Optional properties: - spi-max-frequency: Maximum frequency of the SPI bus when accessing the w5500. According to the w5500 datasheet, the chip allows a maximum of 80 MHz, however, board designs may need to limit this value. - local-mac-address: See ethernet.txt in the same directory. Example (for Raspberry Pi with pin control stuff for GPIO irq): &spi { ethernet@0: w5500@0 { compatible = "wiznet,w5500"; reg = <0>; pinctrl-names = "default"; pinctrl-0 = <ð1_pins>; interrupt-parent = <&gpio>; interrupts = <25 IRQ_TYPE_EDGE_FALLING>; spi-max-frequency = <30000000>; }; }; &gpio { eth1_pins: eth1_pins { brcm,pins = <25>; brcm,function = <0>; /* in */ brcm,pull = <0>; /* none */ }; };