FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/net/wiznet,w5x00.txt

     * 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 = <&eth1_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 */
            };
    };

Cache object: 0f5189b53b335f01839e8657f3955ad1