xref: /openbmc/linux/Documentation/devicetree/bindings/mfd/mscc,ocelot.yaml (revision 9a87ffc99ec8eb8d35eed7c4f816d75f5cc9662e)

# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/mscc,ocelot.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Ocelot Externally-Controlled Ethernet Switch

maintainers:
  - Colin Foster <colin.foster@in-advantage.com>

description: |
  The Ocelot ethernet switch family contains chips that have an internal CPU
  (VSC7513, VSC7514) and chips that don't (VSC7511, VSC7512). All switches have
  the option to be controlled externally via external interfaces like SPI or
  PCIe.

  The switch family is a multi-port networking switch that supports many
  interfaces. Additionally, the device can perform pin control, MDIO buses, and
  external GPIO expanders.

properties:
  compatible:
    enum:
      - mscc,vsc7512

  reg:
    maxItems: 1

  "#address-cells":
    const: 1

  "#size-cells":
    const: 1

  spi-max-frequency:
    maxItems: 1

patternProperties:
  "^pinctrl@[0-9a-f]+$":
    type: object
    $ref: /schemas/pinctrl/mscc,ocelot-pinctrl.yaml

  "^gpio@[0-9a-f]+$":
    type: object
    $ref: /schemas/pinctrl/microchip,sparx5-sgpio.yaml
    properties:
      compatible:
        enum:
          - mscc,ocelot-sgpio

  "^mdio@[0-9a-f]+$":
    type: object
    $ref: /schemas/net/mscc,miim.yaml
    properties:
      compatible:
        enum:
          - mscc,ocelot-miim

  "^ethernet-switch@[0-9a-f]+$":
    type: object
    $ref: /schemas/net/mscc,vsc7514-switch.yaml
    unevaluatedProperties: false
    properties:
      compatible:
        enum:
          - mscc,vsc7512-switch

required:
  - compatible
  - reg
  - '#address-cells'
  - '#size-cells'

additionalProperties: false

examples:
  - |
    ocelot_clock: ocelot-clock {
          compatible = "fixed-clock";
          #clock-cells = <0>;
          clock-frequency = <125000000>;
      };

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

        soc@0 {
            compatible = "mscc,vsc7512";
            spi-max-frequency = <2500000>;
            reg = <0>;
            #address-cells = <1>;
            #size-cells = <1>;

            mdio@7107009c {
                compatible = "mscc,ocelot-miim";
                #address-cells = <1>;
                #size-cells = <0>;
                reg = <0x7107009c 0x24>;

                sw_phy0: ethernet-phy@0 {
                    reg = <0x0>;
                };
            };

            mdio@710700c0 {
                compatible = "mscc,ocelot-miim";
                pinctrl-names = "default";
                pinctrl-0 = <&miim1_pins>;
                #address-cells = <1>;
                #size-cells = <0>;
                reg = <0x710700c0 0x24>;

                sw_phy4: ethernet-phy@4 {
                    reg = <0x4>;
                };
            };

            gpio: pinctrl@71070034 {
                compatible = "mscc,ocelot-pinctrl";
                gpio-controller;
                #gpio-cells = <2>;
                gpio-ranges = <&gpio 0 0 22>;
                reg = <0x71070034 0x6c>;

                sgpio_pins: sgpio-pins {
                    pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
                    function = "sg0";
                };

                miim1_pins: miim1-pins {
                    pins = "GPIO_14", "GPIO_15";
                    function = "miim";
                };
            };

            gpio@710700f8 {
                compatible = "mscc,ocelot-sgpio";
                #address-cells = <1>;
                #size-cells = <0>;
                bus-frequency = <12500000>;
                clocks = <&ocelot_clock>;
                microchip,sgpio-port-ranges = <0 15>;
                pinctrl-names = "default";
                pinctrl-0 = <&sgpio_pins>;
                reg = <0x710700f8 0x100>;

                sgpio_in0: gpio@0 {
                    compatible = "microchip,sparx5-sgpio-bank";
                    reg = <0>;
                    gpio-controller;
                    #gpio-cells = <3>;
                    ngpios = <64>;
                };

                sgpio_out1: gpio@1 {
                    compatible = "microchip,sparx5-sgpio-bank";
                    reg = <1>;
                    gpio-controller;
                    #gpio-cells = <3>;
                    ngpios = <64>;
                };
            };
        };
    };

...