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80 lines
1.7 KiB
80 lines
1.7 KiB
# SPDX-License-Identifier: GPL-2.0 |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/dma/owl-dma.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Actions Semi Owl SoCs DMA controller |
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description: | |
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The OWL DMA is a general-purpose direct memory access controller capable of |
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supporting 10 independent DMA channels for the Actions Semi S700 SoC and 12 |
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independent DMA channels for the S500 and S900 SoC variants. |
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maintainers: |
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- Manivannan Sadhasivam <[email protected]> |
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allOf: |
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- $ref: "dma-controller.yaml#" |
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properties: |
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compatible: |
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enum: |
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- actions,s500-dma |
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- actions,s700-dma |
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- actions,s900-dma |
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reg: |
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maxItems: 1 |
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interrupts: |
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description: |
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controller supports 4 interrupts, which are freely assignable to the |
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DMA channels. |
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maxItems: 4 |
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"#dma-cells": |
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const: 1 |
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dma-channels: |
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maximum: 12 |
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dma-requests: |
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maximum: 46 |
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clocks: |
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maxItems: 1 |
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description: |
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Phandle and Specifier of the clock feeding the DMA controller. |
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power-domains: |
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maxItems: 1 |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- "#dma-cells" |
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- dma-channels |
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- dma-requests |
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- clocks |
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unevaluatedProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/arm-gic.h> |
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dma: dma-controller@e0260000 { |
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compatible = "actions,s900-dma"; |
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reg = <0xe0260000 0x1000>; |
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interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>, |
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<GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>; |
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#dma-cells = <1>; |
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dma-channels = <12>; |
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dma-requests = <46>; |
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clocks = <&clock 22>; |
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}; |
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...
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