Documentation/devicetree/bindings/net/microchip,lan78xx.txt

   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 };