Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
Extension
.yaml
Size
3848 bytes
Lines
168
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/snps,dw-axi-dmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Synopsys DesignWare AXI DMA Controller

maintainers:
  - Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>

description:
  Synopsys DesignWare AXI DMA Controller DT Binding

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

properties:
  compatible:
    oneOf:
      - enum:
          - snps,axi-dma-1.01a
          - intel,kmb-axi-dma
          - sophgo,cv1800b-axi-dma
          - starfive,jh7110-axi-dma
          - starfive,jh8100-axi-dma
      - items:
          - const: altr,agilex5-axi-dma
          - const: snps,axi-dma-1.01a

  reg:
    minItems: 1
    items:
      - description: Address range of the DMAC registers
      - description: Address range of the DMAC APB registers

  reg-names:
    items:
      - const: axidma_ctrl_regs
      - const: axidma_apb_regs

  interrupts:
    description:
      If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
      will be per-channel interrupts. Otherwise, this is a single combined IRQ
      for all channels.
    minItems: 1
    maxItems: 8

  iommus:
    maxItems: 1

  clocks:
    items:
      - description: Bus Clock
      - description: Module Clock

  clock-names:
    items:
      - const: core-clk
      - const: cfgr-clk

  '#dma-cells':
    const: 1

  dma-channels:
    minimum: 1
    maximum: 8

  dma-noncoherent: true

Annotation

Implementation Notes