Commit a6ee35bd authored by Christian Marangi's avatar Christian Marangi Committed by David S. Miller
Browse files

dt-bindings: net: Document support for Airoha AN7583 MDIO Controller 



Airoha AN7583 SoC have 3 different MDIO Controller. One comes from
the intergated Switch based on MT7530. The other 2 live under the SCU
register and expose 2 dedicated MDIO controller.

Document the schema for the 2 dedicated MDIO controller.
Each MDIO controller can be independently reset with the SoC reset line.
Each MDIO controller have a dedicated clock configured to 2.5MHz by
default to follow MDIO bus IEEE 802.3 standard.

Signed-off-by: default avatarChristian Marangi <ansuelsmth@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1ea2e106

Documentation/devicetree/bindings/net/airoha,an7583-mdio.yaml

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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/airoha,an7583-mdio.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Airoha AN7583 Dedicated MDIO Controller



maintainers:

  - Christian Marangi <ansuelsmth@gmail.com>



description:

  Airoha AN7583 SoC have 3 different MDIO Controller.



  One comes from the intergated Switch based on MT7530.



  The other 2 (that this schema describe) live under the SCU

  register supporting both C22 and C45 PHYs.



$ref: mdio.yaml#



properties:

  compatible:

    const: airoha,an7583-mdio



  reg:

    enum: [0xc8, 0xcc]



  clocks:

    maxItems: 1



  resets:

    maxItems: 1



  clock-frequency:

    default: 2500000



required:

  - compatible

  - reg

  - clocks

  - resets



unevaluatedProperties: false



examples:

  - |

    system-controller {

        #address-cells = <1>;

        #size-cells = <0>;



        mdio-bus@c8 {

            compatible = "airoha,an7583-mdio";

            reg = <0xc8>;



            clocks = <&scu>;

            resets = <&scu>;

        };

    };