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| 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 | +Optional properties: |
| 11 | +- local-mac-address: see ethernet.txt |
| 12 | +- mac-address: see ethernet.txt |
| 13 | + |
| 14 | +Optional properties of the embedded PHY: |
| 15 | +- microchip,led-modes: a 0..4 element vector, with each element configuring |
| 16 | + the operating mode of an LED. Omitted LEDs are turned off. Allowed values |
| 17 | + are defined in "include/dt-bindings/net/microchip-lan78xx.h". |
| 18 | + |
| 19 | +Example: |
| 20 | + |
| 21 | +/* Based on the configuration for a Raspberry Pi 3 B+ */ |
| 22 | +&usb { |
| 23 | + usb-port@1 { |
| 24 | + compatible = "usb424,2514"; |
| 25 | + reg = <1>; |
| 26 | + #address-cells = <1>; |
| 27 | + #size-cells = <0>; |
| 28 | + |
| 29 | + usb-port@1 { |
| 30 | + compatible = "usb424,2514"; |
| 31 | + reg = <1>; |
| 32 | + #address-cells = <1>; |
| 33 | + #size-cells = <0>; |
| 34 | + |
| 35 | + ethernet: ethernet@1 { |
| 36 | + compatible = "usb424,7800"; |
| 37 | + reg = <1>; |
| 38 | + local-mac-address = [ 00 11 22 33 44 55 ]; |
| 39 | + |
| 40 | + mdio { |
| 41 | + #address-cells = <0x1>; |
| 42 | + #size-cells = <0x0>; |
| 43 | + eth_phy: ethernet-phy@1 { |
| 44 | + reg = <1>; |
| 45 | + microchip,led-modes = < |
| 46 | + LAN78XX_LINK_1000_ACTIVITY |
| 47 | + LAN78XX_LINK_10_100_ACTIVITY |
| 48 | + >; |
| 49 | + }; |
| 50 | + }; |
| 51 | + }; |
| 52 | + }; |
| 53 | + }; |
| 54 | +}; |
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