Documentation/devicetree/bindings/net/qca,ar803x.yaml

# SPDX-License-Identifier: GPL-2.0+
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/qca,ar803x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Atheros AR803x PHY

maintainers:
  - Andrew Lunn <andrew@lunn.ch>
  - Florian Fainelli <f.fainelli@gmail.com>
  - Heiner Kallweit <hkallweit1@gmail.com>

description: |
  Bindings for Qualcomm Atheros AR803x PHYs

allOf:
  - $ref: ethernet-phy.yaml#

properties:
  qca,clk-out-frequency:
    description: Clock output frequency in Hertz.
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [25000000, 50000000, 62500000, 125000000]

  qca,clk-out-strength:
    description: Clock output driver strength.
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 2]

  qca,disable-smarteee:
    description: Disable Atheros SmartEEE feature.
    type: boolean

  qca,keep-pll-enabled:
    description: |
      If set, keep the PLL enabled even if there is no link. Useful if you
      want to use the clock output without an ethernet link.

      Only supported on the AR8031.
    type: boolean

  qca,disable-hibernation-mode:
    description: |
      Disable Atheros AR803X PHYs hibernation mode. If present, indicates
      that the hardware of PHY will not enter power saving mode when the
      cable is disconnected. And the RX_CLK always keeps outputting a
      valid clock.
    type: boolean

  qca,smarteee-tw-us-100m:
    description: EEE Tw parameter for 100M links.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 1
    maximum: 255

  qca,smarteee-tw-us-1g:
    description: EEE Tw parameter for gigabit links.
    $ref: /schemas/types.yaml#/definitions/uint32
    minimum: 1
    maximum: 255

  vddio-supply:
    description: |
      RGMII I/O voltage regulator (see regulator/regulator.yaml).

      The PHY supports RGMII I/O voltages of 1.5V, 1.8V and 2.5V. You can
      either connect this to the vddio-regulator (1.5V / 1.8V) or the
      vddh-regulator (2.5V).

      Only supported on the AR8031.

  vddio-regulator:
    type: object
    description:
      Initial data for the VDDIO regulator. Set this to 1.5V or 1.8V.
    $ref: /schemas/regulator/regulator.yaml
    unevaluatedProperties: false

  vddh-regulator:
    type: object
    description:
      Dummy subnode to model the external connection of the PHY VDDH
      regulator to VDDIO.
    $ref: /schemas/regulator/regulator.yaml
    unevaluatedProperties: false

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/net/qca-ar803x.h>

    ethernet {
        #address-cells = <1>;
        #size-cells = <0>;

        phy-mode = "rgmii-id";

        ethernet-phy@0 {
            reg = <0>;

            qca,clk-out-frequency = <125000000>;
            qca,clk-out-strength = <AR803X_STRENGTH_FULL>;

            vddio-supply = <&vddio>;

            vddio: vddio-regulator {
                regulator-min-microvolt = <1800000>;
                regulator-max-microvolt = <1800000>;
            };
        };
    };
  - |
    #include <dt-bindings/net/qca-ar803x.h>

    ethernet {
        #address-cells = <1>;
        #size-cells = <0>;

        phy-mode = "rgmii-id";

        ethernet-phy@0 {
            reg = <0>;

            qca,clk-out-frequency = <50000000>;
            qca,keep-pll-enabled;

            vddio-supply = <&vddh>;

            vddh: vddh-regulator {
            };
        };
    };