Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-mx-secbus2.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-mx-secbus2.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-mx-secbus2.yaml
Extension
.yaml
Size
1146 bytes
Lines
43
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

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

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/arm/amlogic/amlogic,meson-mx-secbus2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Amlogic Meson8/Meson8b/Meson8m2 SECBUS2 register interface

maintainers:
  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>

description: |
  The Meson8/Meson8b/Meson8m2 SoCs have a register bank called SECBUS2 which
  contains registers for various IP blocks such as pin-controller bits for
  the BSD_EN and TEST_N GPIOs as well as some AO ARC core control bits.
  The registers can be accessed directly when not running in "secure mode".
  When "secure mode" is enabled then these registers have to be accessed
  through secure monitor calls.

properties:
  compatible:
    items:
      - enum:
          - amlogic,meson8-secbus2
          - amlogic,meson8b-secbus2
      - const: syscon

  reg:
    maxItems: 1

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    secbus2: system-controller@4000 {
      compatible = "amlogic,meson8-secbus2", "syscon";
      reg = <0x4000 0x2000>;
    };

Annotation

Implementation Notes