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52 lines
1.2 KiB
52 lines
1.2 KiB
# SPDX-License-Identifier: GPL-2.0 |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/dma/dma-router.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: DMA Router Generic Binding |
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maintainers: |
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- Vinod Koul <[email protected]> |
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allOf: |
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- $ref: "dma-common.yaml#" |
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description: |
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DMA routers are transparent IP blocks used to route DMA request |
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lines from devices to the DMA controller. Some SoCs (like TI DRA7x) |
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have more peripherals integrated with DMA requests than what the DMA |
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controller can handle directly. |
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properties: |
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$nodename: |
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pattern: "^dma-router(@.*)?$" |
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dma-masters: |
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$ref: /schemas/types.yaml#/definitions/phandle-array |
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description: |
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Array of phandles to the DMA controllers the router can direct |
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the signal to. |
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dma-requests: |
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description: |
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Number of incoming request lines the router can handle. |
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required: |
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- "#dma-cells" |
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- dma-masters |
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additionalProperties: true |
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examples: |
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- | |
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sdma_xbar: dma-router@4a002b78 { |
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compatible = "ti,dra7-dma-crossbar"; |
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reg = <0x4a002b78 0xfc>; |
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#dma-cells = <1>; |
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dma-requests = <205>; |
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ti,dma-safe-map = <0>; |
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dma-masters = <&sdma>; |
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}; |
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...
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