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- 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 reports an incorrect ID (or none at all) then the
- "compatible" list may contain an entry with the correct PHY ID in 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.
- - enet-phy-lane-swap: If set, indicates the PHY will swap the TX/RX lanes to
- compensate for the board being designed with the lanes swapped.
- - eee-broken-100tx:
- - eee-broken-1000t:
- - eee-broken-10gt:
- - eee-broken-1000kx:
- - eee-broken-10gkx4:
- - eee-broken-10gkr:
- Mark the corresponding energy efficient ethernet mode as broken and
- request the ethernet to stop advertising it.
- Example:
- ethernet-phy@0 {
- compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22";
- interrupt-parent = <40000>;
- interrupts = <35 1>;
- reg = <0>;
- };
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