| PHY nodes |
| |
| Required properties: |
| |
| - interrupts : <a b> where a is the interrupt number and b is a |
| field that represents an encoding of the sense and level |
| information for the interrupt. This should be encoded based on |
| the information in section 2) depending on the type of interrupt |
| controller you have. |
| - interrupt-parent : the phandle for the interrupt controller that |
| services interrupts for this device. |
| - reg : The ID number for the phy, usually a small integer |
| |
| Optional Properties: |
| |
| - compatible: Compatible list, may contain |
| "ethernet-phy-ieee802.3-c22" or "ethernet-phy-ieee802.3-c45" for |
| PHYs that implement IEEE802.3 clause 22 or IEEE802.3 clause 45 |
| specifications. If neither of these are specified, the default is to |
| assume clause 22. |
| |
| If the phy's identifier is known then the list may contain an entry |
| of the form: "ethernet-phy-idAAAA.BBBB" where |
| AAAA - The value of the 16 bit Phy Identifier 1 register as |
| 4 hex digits. This is the chip vendor OUI bits 3:18 |
| BBBB - The value of the 16 bit Phy Identifier 2 register as |
| 4 hex digits. This is the chip vendor OUI bits 19:24, |
| followed by 10 bits of a vendor specific ID. |
| |
| The compatible list should not contain other values than those |
| listed here. |
| |
| - max-speed: Maximum PHY supported speed (10, 100, 1000...) |
| |
| - broken-turn-around: If set, indicates the PHY device does not correctly |
| release the turn around line low at the end of a MDIO transaction. |
| |
| - reset-gpios: Reference to a GPIO used to reset the phy. |
| |
| Example: |
| |
| ethernet-phy@0 { |
| compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22"; |
| interrupt-parent = <40000>; |
| interrupts = <35 1>; |
| reg = <0>; |
| reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>; |
| }; |