1 Microchip LAN78xx Gigabit Ethernet controller
2
3 The LAN78XX devices are usually configured by programming their OTP or with
4 an external EEPROM, but some platforms (e.g. Raspberry Pi 3 B+) have neither.
5 The Device Tree properties, if present, override the OTP and EEPROM.
6
7 Required properties:
8 - compatible: Should be one of "usb424,7800", "usb424,7801" or "usb424,7850".
9
10 The MAC address will be determined using the optional properties
11 defined in ethernet.txt.
12
13 Optional properties of the embedded PHY:
14 - microchip,led-modes: a 0..4 element vector, with each element configuring
15 the operating mode of an LED. Omitted LEDs are turned off. Allowed values
16 are defined in "include/dt-bindings/net/microchip-lan78xx.h".
17
18 Example:
19
20 /* Based on the configuration for a Raspberry Pi 3 B+ */
21 &usb {
22 usb-port@1 {
23 compatible = "usb424,2514";
24 reg = <1>;
25 #address-cells = <1>;
26 #size-cells = <0>;
27
28 usb-port@1 {
29 compatible = "usb424,2514";
30 reg = <1>;
31 #address-cells = <1>;
32 #size-cells = <0>;
33
34 ethernet: ethernet@1 {
35 compatible = "usb424,7800";
36 reg = <1>;
37 local-mac-address = [ 00 11 22 33 44 55 ];
38
39 mdio {
40 #address-cells = <0x1>;
41 #size-cells = <0x0>;
42 eth_phy: ethernet-phy@1 {
43 reg = <1>;
44 microchip,led-modes = <
45 LAN78XX_LINK_1000_ACTIVITY
46 LAN78XX_LINK_10_100_ACTIVITY
47 >;
48 };
49 };
50 };
51 };
52 };
53 };
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