xref: /freebsd/sys/contrib/device-tree/Bindings/reset/socionext,uniphier-glue-reset.yaml (revision 8cc087a1eee9ec1ca9f7ac1e63ad51bdb5a682eb)

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

title: Socionext UniPhier peripheral core reset in glue layer

description: |
  Some peripheral core reset belongs to its own glue layer. Before using
  this core reset, it is necessary to control the clocks and resets to
  enable this layer. These clocks and resets should be described in each
  property.

maintainers:
  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

properties:
  compatible:
    enum:
      - socionext,uniphier-pro4-usb3-reset
      - socionext,uniphier-pro5-usb3-reset
      - socionext,uniphier-pxs2-usb3-reset
      - socionext,uniphier-ld20-usb3-reset
      - socionext,uniphier-pxs3-usb3-reset
      - socionext,uniphier-nx1-usb3-reset
      - socionext,uniphier-pro4-ahci-reset
      - socionext,uniphier-pxs2-ahci-reset
      - socionext,uniphier-pxs3-ahci-reset

  reg:
    maxItems: 1

  "#reset-cells":
    const: 1

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    oneOf:
      - items:           # for Pro4, Pro5
          - const: gio
          - const: link
      - items:           # for others
          - const: link

  resets:
    minItems: 1
    maxItems: 2

  reset-names:
    oneOf:
      - items:           # for Pro4, Pro5
          - const: gio
          - const: link
      - items:           # for others
          - const: link

additionalProperties: false

required:
  - compatible
  - reg
  - "#reset-cells"
  - clocks
  - clock-names
  - resets
  - reset-names

examples:
  - |
    usb-glue@65b00000 {
        compatible = "simple-mfd";
        #address-cells = <1>;
        #size-cells = <1>;
        ranges = <0 0x65b00000 0x400>;

        usb_rst: reset@0 {
            compatible = "socionext,uniphier-ld20-usb3-reset";
            reg = <0x0 0x4>;
            #reset-cells = <1>;
            clock-names = "link";
            clocks = <&sys_clk 14>;
            reset-names = "link";
            resets = <&sys_rst 14>;
        };
    };