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1* Wiznet w5x002 3This is a standalone 10/100 MBit Ethernet controller with SPI interface.4 5For each device connected to a SPI bus, define a child node within6the SPI master node.7 8Required properties:9- compatible: Should be one of the following strings:10 "wiznet,w5100"11 "wiznet,w5200"12 "wiznet,w5500"13- reg: Specify the SPI chip select the chip is wired to.14- interrupts: Specify the interrupt index within the interrupt controller (referred15 to above in interrupt-parent) and interrupt type. w5x00 natively16 generates falling edge interrupts, however, additional board logic17 might invert the signal.18- pinctrl-names: List of assigned state names, see pinctrl binding documentation.19- pinctrl-0: List of phandles to configure the GPIO pin used as interrupt line,20 see also generic and your platform specific pinctrl binding21 documentation.22 23Optional properties:24- spi-max-frequency: Maximum frequency of the SPI bus when accessing the w5500.25 According to the w5500 datasheet, the chip allows a maximum of 80 MHz, however,26 board designs may need to limit this value.27- local-mac-address: See ethernet.txt in the same directory.28 29 30Example (for Raspberry Pi with pin control stuff for GPIO irq):31 32&spi {33 ethernet@0: w5500@0 {34 compatible = "wiznet,w5500";35 reg = <0>;36 pinctrl-names = "default";37 pinctrl-0 = <ð1_pins>;38 interrupt-parent = <&gpio>;39 interrupts = <25 IRQ_TYPE_EDGE_FALLING>;40 spi-max-frequency = <30000000>;41 };42};43 44&gpio {45 eth1_pins: eth1_pins {46 brcm,pins = <25>;47 brcm,function = <0>; /* in */48 brcm,pull = <0>; /* none */49 };50};51