Commit 62a12a22 authored by Vivian Wang's avatar Vivian Wang Committed by Paolo Abeni
Browse files

dt-bindings: net: Add support for SpacemiT K1 



The Ethernet MACs on SpacemiT K1 appears to be a custom design. SpacemiT
refers to them as "EMAC", so let's just call them "spacemit,k1-emac".

Signed-off-by: default avatarVivian Wang <wangruikang@iscas.ac.cn>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250914-net-k1-emac-v12-1-65b31b398f44@iscas.ac.cn


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent 29fa7f9e

Documentation/devicetree/bindings/net/spacemit,k1-emac.yaml

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+81 −0
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/net/spacemit,k1-emac.yaml#

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



title: SpacemiT K1 Ethernet MAC



allOf:

  - $ref: ethernet-controller.yaml#



maintainers:

  - Vivian Wang <wangruikang@iscas.ac.cn>



properties:

  compatible:

    const: spacemit,k1-emac



  reg:

    maxItems: 1



  clocks:

    maxItems: 1



  interrupts:

    maxItems: 1



  mdio-bus:

    $ref: mdio.yaml#

    unevaluatedProperties: false



  resets:

    maxItems: 1



  spacemit,apmu:

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

    items:

      - items:

          - description: phandle to syscon that controls this MAC

          - description: offset of control registers

    description:

      A phandle to syscon with byte offset to control registers for this MAC



required:

  - compatible

  - reg

  - clocks

  - interrupts

  - resets

  - spacemit,apmu



unevaluatedProperties: false



examples:

  - |

    #include <dt-bindings/clock/spacemit,k1-syscon.h>



    ethernet@cac80000 {

        compatible = "spacemit,k1-emac";

        reg = <0xcac80000 0x00000420>;

        clocks = <&syscon_apmu CLK_EMAC0_BUS>;

        interrupts = <131>;

        mac-address = [ 00 00 00 00 00 00 ];

        phy-handle = <&rgmii0>;

        phy-mode = "rgmii-id";

        pinctrl-names = "default";

        pinctrl-0 = <&gmac0_cfg>;

        resets = <&syscon_apmu RESET_EMAC0>;

        rx-internal-delay-ps = <0>;

        tx-internal-delay-ps = <0>;

        spacemit,apmu = <&syscon_apmu 0x3e4>;



        mdio-bus {

            #address-cells = <0x1>;

            #size-cells = <0x0>;



            rgmii0: phy@1 {

                reg = <0x1>;

            };

        };

    };