Commit 4fed4d20 authored by Peng Fan's avatar Peng Fan Committed by Shawn Guo
Browse files

dt-bindings: soc: add i.MX93 SRC 



Add bindings for i.MX93 System Reset Controller(SRC). SRC supports
resets and power gating for mixes.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarPeng Fan <peng.fan@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 7a8a4471

Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml

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# 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

    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>;

        };

    };