| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | }; |