Commit 48ac0b58 authored by Linus Walleij's avatar Linus Walleij Committed by David S. Miller
Browse files

net: ethernet: ixp4xx: Add DT bindings 



This adds device tree bindings for the IXP4xx ethernet
controller with optional MDIO bridge.

Cc: Zoltan HERPAI <wigyori@uid0.hu>
Cc: Raylynn Knight <rayknight@me.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9c68011b

Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.yaml

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

# Copyright 2018 Linaro Ltd.

%YAML 1.2

---

$id: "http://devicetree.org/schemas/net/intel,ixp4xx-ethernet.yaml#"

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



title: Intel IXP4xx ethernet



allOf:

  - $ref: "ethernet-controller.yaml#"



maintainers:

  - Linus Walleij <linus.walleij@linaro.org>



description: |

  The Intel IXP4xx ethernet makes use of the IXP4xx NPE (Network

  Processing Engine) and the IXP4xx Queue Manager to process

  the ethernet frames. It can optionally contain an MDIO bus to

  talk to PHYs.



properties:

  compatible:

    const: intel,ixp4xx-ethernet



  reg:

    maxItems: 1

    description: Ethernet MMIO address range



  queue-rx:

    $ref: '/schemas/types.yaml#/definitions/phandle-array'

    maxItems: 1

    description: phandle to the RX queue on the NPE



  queue-txready:

    $ref: '/schemas/types.yaml#/definitions/phandle-array'

    maxItems: 1

    description: phandle to the TX READY queue on the NPE



  phy-mode: true



  phy-handle: true



  intel,npe-handle:

    $ref: '/schemas/types.yaml#/definitions/phandle-array'

    maxItems: 1

    description: phandle to the NPE this ethernet instance is using

      and the instance to use in the second cell



  mdio:

    type: object

    $ref: "mdio.yaml#"

    description: optional node for embedded MDIO controller



required:

  - compatible

  - reg

  - queue-rx

  - queue-txready

  - intel,npe-handle



additionalProperties: false



examples:

  - |

    npe: npe@c8006000 {

      compatible = "intel,ixp4xx-network-processing-engine";

      reg = <0xc8006000 0x1000>, <0xc8007000 0x1000>, <0xc8008000 0x1000>;

    };



    ethernet@c8009000 {

      compatible = "intel,ixp4xx-ethernet";

      reg = <0xc8009000 0x1000>;

      status = "disabled";

      queue-rx = <&qmgr 4>;

      queue-txready = <&qmgr 21>;

      intel,npe-handle = <&npe 1>;

      phy-mode = "rgmii";

      phy-handle = <&phy1>;

    };



    ethernet@c800c000 {

      compatible = "intel,ixp4xx-ethernet";

      reg = <0xc800c000 0x1000>;

      status = "disabled";

      queue-rx = <&qmgr 3>;

      queue-txready = <&qmgr 20>;

      intel,npe-handle = <&npe 2>;

      phy-mode = "rgmii";

      phy-handle = <&phy2>;



      mdio {

        #address-cells = <1>;

        #size-cells = <0>;

        phy1: ethernet-phy@1 {

          reg = <1>;

        };

        phy2: ethernet-phy@2 {

          reg = <2>;

        };

      };

    };