xref: /openbmc/linux/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml (revision e62fc182)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-src.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP i.MX93 System Reset Controller

maintainers:
  - Peng Fan <peng.fan@nxp.com>

description: |
  The System Reset Controller (SRC) is responsible for the generation of
  all the system reset signals and boot argument latching.

  Its main functions are as follows,
  - Deals with all global system reset sources from other modules,
    and generates global system reset.
  - Responsible for power gating of MIXs (Slices) and their memory
    low power control.

properties:
  compatible:
    items:
      - const: fsl,imx93-src
      - const: syscon

  reg:
    maxItems: 1

  ranges: true

  '#address-cells':
    const: 1

  '#size-cells':
    const: 1

patternProperties:
  "power-domain@[0-9a-f]+$":
    type: object
    additionalProperties: false

    properties:
      compatible:
        items:
          - const: fsl,imx93-src-slice

      '#power-domain-cells':
        const: 0

      reg:
        items:
          - description: mix slice register region
          - description: mem slice register region

      clocks:
        description: |
          A number of phandles to clocks that need to be enabled
          during domain power-up sequencing to ensure reset
          propagation into devices located inside this power domain.
        minItems: 1
        maxItems: 5

    required:
      - compatible
      - '#power-domain-cells'
      - reg

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

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/imx93-clock.h>

    system-controller@44460000 {
        compatible = "fsl,imx93-src", "syscon";
        reg = <0x44460000 0x10000>;
        #address-cells = <1>;
        #size-cells = <1>;
        ranges;

        mediamix: power-domain@0 {
            compatible = "fsl,imx93-src-slice";
            reg = <0x44462400 0x400>, <0x44465800 0x400>;
            #power-domain-cells = <0>;
            clocks = <&clk IMX93_CLK_MEDIA_AXI>,
                     <&clk IMX93_CLK_MEDIA_APB>;
        };
    };