Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/soc/fsl/fsl,qman-portal.yaml
Extension
.yaml
Size
2975 bytes
Lines
113
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/soc/fsl/fsl,qman-portal.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: QorIQ DPAA Queue Manager Portals

maintainers:
  - Frank Li <Frank.Li@nxp.com>

description:
  Portals are memory mapped interfaces to QMan that allow low-latency, lock-less
  interaction by software running on processor cores, accelerators and network
  interfaces with the QMan

properties:
  compatible:
    oneOf:
      - const: fsl,qman-portal
      - items:
          - enum:
              - fsl,ls1043-qman-portal
              - fsl,ls1046-qman-portal
              - fsl,qman-portal-1.2.0
          - const: fsl,qman-portal

  reg:
    items:
      - description: the cache-enabled region of the portal
      - description: the cache-inhibited region of the portal

  interrupts:
    maxItems: 1

  fsl,liodn:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    maxItems: 2
    description: See pamu.txt. Two LIODN(s). DQRR LIODN (DLIODN) and Frame LIODN
      (FLIODN)

  fsl,iommu-parent:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: See pamu.txt.

  fsl,qman-channel-id:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: qman channel id.

  cell-index:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      The hardware index of the channel. This can also be
      determined by dividing any of the channel's 8 work queue
      IDs by 8

      In addition to these properties the qman-portals should have sub-nodes to
      represent the HW devices/portals that are connected to the software portal
      described here

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

patternProperties:
  '^(fman0|fman1|pme|crypto)+$':
    type: object

Annotation

Implementation Notes