93 lines
1.8 KiB
YAML
93 lines
1.8 KiB
YAML
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/dma/arm,pl330.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARM PrimeCell PL330 DMA Controller
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maintainers:
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- Vinod Koul <vkoul@kernel.org>
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description:
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The ARM PrimeCell PL330 DMA controller can move blocks of memory contents
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between memory and peripherals or memory to memory.
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# We need a select here so we don't match all nodes with 'arm,primecell'
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select:
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properties:
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compatible:
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contains:
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const: arm,pl330
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required:
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- compatible
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allOf:
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- $ref: dma-controller.yaml#
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- $ref: /schemas/arm/primecell.yaml#
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properties:
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compatible:
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items:
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- enum:
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- arm,pl330
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- const: arm,primecell
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reg:
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maxItems: 1
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interrupts:
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minItems: 1
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maxItems: 32
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description: A single combined interrupt or an interrupt per event
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'#dma-cells':
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const: 1
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description: Contains the DMA request number for the consumer
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arm,pl330-broken-no-flushp:
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type: boolean
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description: quirk for avoiding to execute DMAFLUSHP
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arm,pl330-periph-burst:
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type: boolean
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description: quirk for performing burst transfer only
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dma-coherent: true
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iommus:
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minItems: 1
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maxItems: 9
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description: Up to 1 IOMMU entry per DMA channel for writes and 1
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IOMMU entry for reads.
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power-domains:
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maxItems: 1
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resets:
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minItems: 1
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maxItems: 2
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reset-names:
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minItems: 1
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items:
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- const: dma
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- const: dma-ocp
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required:
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- compatible
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- reg
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- interrupts
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unevaluatedProperties: false
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examples:
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- |
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dma-controller@12680000 {
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compatible = "arm,pl330", "arm,primecell";
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reg = <0x12680000 0x1000>;
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interrupts = <99>;
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#dma-cells = <1>;
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};
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...
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