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a462d2b757
* target: add phytium support * kernel/video: add phytium platform ARM GPU support * config: add EFI support to phytium armv8 * target: phytium: remove rtl8821cs driver * target: phytium: refresh dts
56 lines
1.2 KiB
YAML
56 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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title: Phytium DDMA Controller bindings
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description:
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The Phytium DDMA is a general-purpose direct memory access controller capable of
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supporting 8 independent DMA channels. Each channel can have up to 32 requests.
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DMA clients connected to the Phytium DDMA controller must use the format
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described in the dma.txt file, using a two-cell specifier for each
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channel: a phandle to the DMA controller plus the following two integer cells:
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1. The channel id
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2. The request line number
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maintainers:
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- Huang Jie <huangjie1663@phytium.com.cn>
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allOf:
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- $ref: "dma-controller.yaml#"
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properties:
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"#dma-cells":
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const: 2
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compatible:
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const: phytium,ddma
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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dma-channels:
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minItems: 1
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maxItems: 8
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description: it indicates that the number of channels are used
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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-channels
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unevaluatedProperties: false
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examples:
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ddma0: ddma@28003000 {
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compatible = "phytium,ddma";
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reg = <0x0 0x28003000 0x0 0x1000>;
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interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
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#dma-cells = <2>;
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dma-channels = <8>;
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};
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...
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