| 1 | PHY nodes |
| 2 | |
| 3 | Required properties: |
| 4 | |
| 5 | - interrupts : interrupt specifier for the sole interrupt. |
| 6 | - interrupt-parent : the phandle for the interrupt controller that |
| 7 | services interrupts for this device. |
| 8 | - reg : The ID number for the phy, usually a small integer |
| 9 | |
| 10 | Optional Properties: |
| 11 | |
| 12 | - compatible: Compatible list, may contain |
| 13 | "ethernet-phy-ieee802.3-c22" or "ethernet-phy-ieee802.3-c45" for |
| 14 | PHYs that implement IEEE802.3 clause 22 or IEEE802.3 clause 45 |
| 15 | specifications. If neither of these are specified, the default is to |
| 16 | assume clause 22. |
| 17 | |
| 18 | If the PHY reports an incorrect ID (or none at all) then the |
| 19 | "compatible" list may contain an entry with the correct PHY ID in the |
| 20 | form: "ethernet-phy-idAAAA.BBBB" where |
| 21 | AAAA - The value of the 16 bit Phy Identifier 1 register as |
| 22 | 4 hex digits. This is the chip vendor OUI bits 3:18 |
| 23 | BBBB - The value of the 16 bit Phy Identifier 2 register as |
| 24 | 4 hex digits. This is the chip vendor OUI bits 19:24, |
| 25 | followed by 10 bits of a vendor specific ID. |
| 26 | |
| 27 | The compatible list should not contain other values than those |
| 28 | listed here. |
| 29 | |
| 30 | - max-speed: Maximum PHY supported speed (10, 100, 1000...) |
| 31 | |
| 32 | - broken-turn-around: If set, indicates the PHY device does not correctly |
| 33 | release the turn around line low at the end of a MDIO transaction. |
| 34 | |
| 35 | - enet-phy-lane-swap: If set, indicates the PHY will swap the TX/RX lanes to |
| 36 | compensate for the board being designed with the lanes swapped. |
| 37 | |
| 38 | - enet-phy-lane-no-swap: If set, indicates that PHY will disable swap of the |
| 39 | TX/RX lanes. This property allows the PHY to work correcly after e.g. wrong |
| 40 | bootstrap configuration caused by issues in PCB layout design. |
| 41 | |
| 42 | - eee-broken-100tx: |
| 43 | - eee-broken-1000t: |
| 44 | - eee-broken-10gt: |
| 45 | - eee-broken-1000kx: |
| 46 | - eee-broken-10gkx4: |
| 47 | - eee-broken-10gkr: |
| 48 | Mark the corresponding energy efficient ethernet mode as broken and |
| 49 | request the ethernet to stop advertising it. |
| 50 | |
| 51 | Example: |
| 52 | |
| 53 | ethernet-phy@0 { |
| 54 | compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c22"; |
| 55 | interrupt-parent = <&PIC>; |
| 56 | interrupts = <35 IRQ_TYPE_EDGE_RISING>; |
| 57 | reg = <0>; |
| 58 | }; |