Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
Extension
.yaml
Size
3345 bytes
Lines
134
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.

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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/arm,coresight-dynamic-replicator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Arm Coresight Programmable Trace Bus Replicator

maintainers:
  - Mathieu Poirier <mathieu.poirier@linaro.org>
  - Mike Leach <mike.leach@linaro.org>
  - Leo Yan <leo.yan@linaro.org>
  - Suzuki K Poulose <suzuki.poulose@arm.com>

description: |
  CoreSight components are compliant with the ARM CoreSight architecture
  specification and can be connected in various topologies to suit a particular
  SoCs tracing needs. These trace components can generally be classified as
  sinks, links and sources. Trace data produced by one or more sources flows
  through the intermediate links connecting the source to the currently selected
  sink.

  The Coresight replicator splits a single trace stream into two trace streams
  for systems that have more than one trace sink component.

# Need a custom select here or 'arm,primecell' will match on lots of nodes
select:
  properties:
    compatible:
      contains:
        const: arm,coresight-dynamic-replicator
  required:
    - compatible

allOf:
  - $ref: /schemas/arm/primecell.yaml#

properties:
  compatible:
    items:
      - const: arm,coresight-dynamic-replicator
      - const: arm,primecell

  reg:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    items:
      - const: apb_pclk
      - const: atclk

  label:
    description:
      Description of a coresight device.

  power-domains:
    maxItems: 1

  qcom,replicator-loses-context:
    type: boolean
    description:
      Indicates that the replicator will lose register context when AMBA clock
      is removed which is observed in some replicator designs.

  in-ports:

Annotation

Implementation Notes