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

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

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
Extension
.yaml
Size
3465 bytes
Lines
129
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-static-replicator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Arm CoreSight Static 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.

properties:
  compatible:
    const: arm,coresight-static-replicator

  power-domains:
    maxItems: 1

  clocks:
    minItems: 1
    maxItems: 3

  clock-names:
    oneOf:
      - items:
          - enum: [apb_pclk, atclk]
      - items: # Zynq-700
          - const: apb_pclk
          - const: dbg_trc
          - const: dbg_apb

  label:
    description:
      Description of a coresight device.

  in-ports:
    $ref: /schemas/graph.yaml#/properties/ports
    additionalProperties: false

    properties:
      port:
        description: Input connection from CoreSight Trace bus
        $ref: /schemas/graph.yaml#/properties/port

  out-ports:
    $ref: /schemas/graph.yaml#/properties/ports

    patternProperties:
      '^port@[01]$':
        description: Output connections to CoreSight Trace bus
        $ref: /schemas/graph.yaml#/$defs/port-base
        unevaluatedProperties: false

        properties:
          endpoint:
            $ref: /schemas/graph.yaml#/$defs/endpoint-base

Annotation

Implementation Notes