Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
Extension
.yaml
Size
2006 bytes
Lines
73
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
# Copyright 2024 NXP
%YAML 1.2
---
$id: http://devicetree.org/schemas/firmware/nxp,imx95-scmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: i.MX95 System Control and Management Interface(SCMI) Vendor Protocols Extension

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

properties:
  protocol@80:
    description:
      SCMI LMM protocol which is for boot, shutdown, and reset of other logical
      machines (LM). It is usually used to allow one LM to manage another used
      as an offload or accelerator engine.
    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
    unevaluatedProperties: false

    properties:
      reg:
        const: 0x80

  protocol@81:
    type: object
    allOf:
      - $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
      - $ref: /schemas/input/input.yaml#
    additionalProperties: false

    properties:
      reg:
        const: 0x81

      linux,code:
        default: 116  # KEY_POWER

  protocol@82:
    description:
      SCMI CPU Protocol which allows an agent to start or stop a CPU. It is
      used to manage auxiliary CPUs in a LM.
    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
    unevaluatedProperties: false

    properties:
      reg:
        const: 0x82

  protocol@84:
    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
    unevaluatedProperties: false

    properties:
      reg:
        const: 0x84

      nxp,ctrl-ids:
        description:
          Each entry consists of 2 integers, represents the ctrl id and the value
        items:
          items:
            - description: the ctrl id index
              enum: [0, 1, 2, 3, 4, 5, 6, 7, 0x8000, 0x8001, 0x8002, 0x8003,
                     0x8004, 0x8005, 0x8006, 0x8007]
            - description: the value assigned to the ctrl id
        minItems: 1
        maxItems: 16
        $ref: /schemas/types.yaml#/definitions/uint32-matrix

Annotation

Implementation Notes