| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/net/ethernet-phy.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Ethernet PHY Generic Binding |
| |
| maintainers: |
| - Andrew Lunn <andrew@lunn.ch> |
| - Florian Fainelli <f.fainelli@gmail.com> |
| - Heiner Kallweit <hkallweit1@gmail.com> |
| |
| # The dt-schema tools will generate a select statement first by using |
| # the compatible, and second by using the node name if any. In our |
| # case, the node name is the one we want to match on, while the |
| # compatible is optional. |
| select: |
| properties: |
| $nodename: |
| pattern: "^ethernet-phy(@[a-f0-9]+)?$" |
| |
| required: |
| - $nodename |
| |
| properties: |
| $nodename: |
| pattern: "^ethernet-phy(@[a-f0-9]+)?$" |
| |
| compatible: |
| oneOf: |
| - const: ethernet-phy-ieee802.3-c22 |
| description: PHYs that implement IEEE802.3 clause 22 |
| - const: ethernet-phy-ieee802.3-c45 |
| description: PHYs that implement IEEE802.3 clause 45 |
| - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$" |
| description: |
| If the PHY reports an incorrect ID (or none at all) then the |
| compatible list may contain an entry with the correct PHY ID |
| in the above form. |
| The first group of digits is the 16 bit Phy Identifier 1 |
| register, this is the chip vendor OUI bits 3:18. The |
| second group of digits is the Phy Identifier 2 register, |
| this is the chip vendor OUI bits 19:24, followed by 10 |
| bits of a vendor specific ID. |
| - items: |
| - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$" |
| - const: ethernet-phy-ieee802.3-c22 |
| - items: |
| - pattern: "^ethernet-phy-id[a-f0-9]{4}\\.[a-f0-9]{4}$" |
| - const: ethernet-phy-ieee802.3-c45 |
| |
| reg: |
| minimum: 0 |
| maximum: 31 |
| description: |
| The ID number for the PHY. |
| |
| interrupts: |
| maxItems: 1 |
| |
| max-speed: |
| enum: |
| - 10 |
| - 100 |
| - 1000 |
| - 2500 |
| - 5000 |
| - 10000 |
| - 20000 |
| - 25000 |
| - 40000 |
| - 50000 |
| - 56000 |
| - 100000 |
| - 200000 |
| description: |
| Maximum PHY supported speed in Mbits / seconds. |
| |
| phy-10base-t1l-2.4vpp: |
| description: | |
| tristate, request/disable 2.4 Vpp operating mode. The values are: |
| 0: Disable 2.4 Vpp operating mode. |
| 1: Request 2.4 Vpp operating mode from link partner. |
| Absence of this property will leave configuration to default values. |
| $ref: "/schemas/types.yaml#/definitions/uint32" |
| enum: [0, 1] |
| |
| broken-turn-around: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| If set, indicates the PHY device does not correctly release |
| the turn around line low at end of the control phase of the |
| MDIO transaction. |
| |
| enet-phy-lane-swap: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| If set, indicates the PHY will swap the TX/RX lanes to |
| compensate for the board being designed with the lanes |
| swapped. |
| |
| enet-phy-lane-no-swap: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| If set, indicates that PHY will disable swap of the |
| TX/RX lanes. This property allows the PHY to work correcly after |
| e.g. wrong bootstrap configuration caused by issues in PCB |
| layout design. |
| |
| eee-broken-100tx: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| eee-broken-1000t: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| eee-broken-10gt: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| eee-broken-1000kx: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| eee-broken-10gkx4: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| eee-broken-10gkr: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| Mark the corresponding energy efficient ethernet mode as |
| broken and request the ethernet to stop advertising it. |
| |
| phy-is-integrated: |
| $ref: /schemas/types.yaml#/definitions/flag |
| description: |
| If set, indicates that the PHY is integrated into the same |
| physical package as the Ethernet MAC. If needed, muxers |
| should be configured to ensure the integrated PHY is |
| used. The absence of this property indicates the muxers |
| should be configured so that the external PHY is used. |
| |
| resets: |
| maxItems: 1 |
| |
| reset-names: |
| const: phy |
| |
| reset-gpios: |
| maxItems: 1 |
| description: |
| The GPIO phandle and specifier for the PHY reset signal. |
| |
| reset-assert-us: |
| description: |
| Delay after the reset was asserted in microseconds. If this |
| property is missing the delay will be skipped. |
| |
| reset-deassert-us: |
| description: |
| Delay after the reset was deasserted in microseconds. If |
| this property is missing the delay will be skipped. |
| |
| sfp: |
| $ref: /schemas/types.yaml#/definitions/phandle |
| description: |
| Specifies a reference to a node representing a SFP cage. |
| |
| rx-internal-delay-ps: |
| description: | |
| RGMII Receive PHY Clock Delay defined in pico seconds. This is used for |
| PHY's that have configurable RX internal delays. If this property is |
| present then the PHY applies the RX delay. |
| |
| tx-internal-delay-ps: |
| description: | |
| RGMII Transmit PHY Clock Delay defined in pico seconds. This is used for |
| PHY's that have configurable TX internal delays. If this property is |
| present then the PHY applies the TX delay. |
| |
| required: |
| - reg |
| |
| additionalProperties: true |
| |
| examples: |
| - | |
| ethernet { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| ethernet-phy@0 { |
| compatible = "ethernet-phy-id0141.0e90", "ethernet-phy-ieee802.3-c45"; |
| interrupt-parent = <&PIC>; |
| interrupts = <35 1>; |
| reg = <0>; |
| |
| resets = <&rst 8>; |
| reset-names = "phy"; |
| reset-gpios = <&gpio1 4 1>; |
| reset-assert-us = <1000>; |
| reset-deassert-us = <2000>; |
| }; |
| }; |
