ark1668ed-bsp/linux/Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/starfive,jh7110-usb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: StarFive JH7110 wrapper module for the Cadence USBSS-DRD controller

maintainers:
  - Minda Chen <minda.chen@starfivetech.com>

properties:
  compatible:
    const: starfive,jh7110-usb

  ranges: true

  starfive,stg-syscon:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: phandle to System Register Controller stg_syscon node.
          - description: dr mode register offset of STG_SYSCONSAIF__SYSCFG register for USB.
    description:
      The phandle to System Register Controller syscon node and the offset
      of STG_SYSCONSAIF__SYSCFG register for USB.

  dr_mode:
    enum: [host, otg, peripheral]

  "#address-cells":
    enum: [1, 2]

  "#size-cells":
    enum: [1, 2]

  clocks:
    items:
      - description: link power management clock
      - description: standby clock
      - description: APB clock
      - description: AXI clock
      - description: UTMI APB clock

  clock-names:
    items:
      - const: lpm
      - const: stb
      - const: apb
      - const: axi
      - const: utmi_apb

  resets:
    items:
      - description: Power up reset
      - description: APB clock reset
      - description: AXI clock reset
      - description: UTMI APB clock reset

  reset-names:
    items:
      - const: pwrup
      - const: apb
      - const: axi
      - const: utmi_apb

patternProperties:
  "^usb@[0-9a-f]+$":
    $ref: cdns,usb3.yaml#
    description: Required child node

required:
  - compatible
  - ranges
  - starfive,stg-syscon
  - '#address-cells'
  - '#size-cells'
  - dr_mode
  - clocks
  - resets

additionalProperties: false

examples:
  - |
    usb@10100000 {
        compatible = "starfive,jh7110-usb";
        ranges = <0x0 0x10100000 0x100000>;
        #address-cells = <1>;
        #size-cells = <1>;
        starfive,stg-syscon = <&stg_syscon 0x4>;
        clocks = <&syscrg 4>,
                 <&stgcrg 5>,
                 <&stgcrg 1>,
                 <&stgcrg 3>,
                 <&stgcrg 2>;
        clock-names = "lpm", "stb", "apb", "axi", "utmi_apb";
        resets = <&stgcrg 10>,
                 <&stgcrg 8>,
                 <&stgcrg 7>,
                 <&stgcrg 9>;
        reset-names = "pwrup", "apb", "axi", "utmi_apb";
        dr_mode = "host";

        usb@0 {
            compatible = "cdns,usb3";
            reg = <0x0 0x10000>,
                  <0x10000 0x10000>,
                  <0x20000 0x10000>;
            reg-names = "otg", "xhci", "dev";
            interrupts = <100>, <108>, <110>;
            interrupt-names = "host", "peripheral", "otg";
            maximum-speed = "super-speed";
        };
    };