Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
Extension
.yaml
Size
2237 bytes
Lines
97
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-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/bus/st,stm32-etzpc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: STM32 Extended TrustZone protection controller

description: |
  The ETZPC configures TrustZone security in a SoC having bus masters and
  devices with programmable-security attributes (securable resources).

maintainers:
  - Gatien Chevallier <gatien.chevallier@foss.st.com>

select:
  properties:
    compatible:
      contains:
        const: st,stm32-etzpc
  required:
    - compatible

properties:
  compatible:
    items:
      - const: st,stm32-etzpc
      - const: simple-bus

  reg:
    maxItems: 1

  "#address-cells":
    const: 1

  "#size-cells":
    const: 1

  ranges: true

  "#access-controller-cells":
    const: 1
    description:
      Contains the firewall ID associated to the peripheral.

patternProperties:
  "@[0-9a-f]+$":
    description: Peripherals
    type: object

    additionalProperties: true

    required:
      - access-controllers

required:
  - compatible
  - reg
  - "#address-cells"
  - "#size-cells"
  - "#access-controller-cells"
  - ranges

additionalProperties: false

examples:
  - |
    // In this example, the usart2 device refers to rifsc as its access
    // controller.
    // Access rights are verified before creating devices.

Annotation

Implementation Notes