Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml
Extension
.yaml
Size
1816 bytes
Lines
89
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/dma/xilinx/xlnx,zynqmp-dma-1.0.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Xilinx ZynqMP DMA Engine

description: |
  The Xilinx ZynqMP DMA engine supports memory to memory transfers,
  memory to device and device to memory transfers. It also has flow
  control and rate control support for slave/peripheral dma access.

maintainers:
  - Michael Tretter <m.tretter@pengutronix.de>
  - Harini Katakam <harini.katakam@amd.com>
  - Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>

allOf:
  - $ref: ../dma-controller.yaml#

properties:
  "#dma-cells":
    const: 1

  compatible:
    enum:
      - amd,versal2-dma-1.0
      - xlnx,zynqmp-dma-1.0

  reg:
    description: memory map for gdma/adma module access
    maxItems: 1

  interrupts:
    description: DMA channel interrupt
    maxItems: 1

  clocks:
    description: input clocks
    minItems: 2
    maxItems: 2

  clock-names:
    items:
      - const: clk_main
      - const: clk_apb

  xlnx,bus-width:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 64
      - 128
    description: AXI bus width in bits

  iommus:
    maxItems: 1

  power-domains:
    maxItems: 1

  dma-coherent: true

required:
  - "#dma-cells"
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

Annotation

Implementation Notes