1* Wiznet w5x00
2
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 within
6the 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 (referred
15              to above in interrupt-parent) and interrupt type. w5x00 natively
16              generates falling edge interrupts, however, additional board logic
17              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 binding
21             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 = <&eth1_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