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57 lines
1.2 KiB
57 lines
1.2 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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# Copyright 2020 Unisoc Inc. |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/iommu/sprd,iommu.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Unisoc IOMMU and Multi-media MMU |
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maintainers: |
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- Chunyan Zhang <[email protected]> |
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properties: |
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compatible: |
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enum: |
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- sprd,iommu-v1 |
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"#iommu-cells": |
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const: 0 |
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description: |
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Unisoc IOMMUs are all single-master IOMMU devices, therefore no |
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additional information needs to associate with its master device. |
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Please refer to the generic bindings document for more details, |
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Documentation/devicetree/bindings/iommu/iommu.txt |
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reg: |
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maxItems: 1 |
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clocks: |
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description: |
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Reference to a gate clock phandle, since access to some of IOMMUs are |
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controlled by gate clock, but this is not required. |
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required: |
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- compatible |
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- reg |
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- "#iommu-cells" |
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additionalProperties: false |
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examples: |
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- | |
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iommu_disp: iommu@63000800 { |
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compatible = "sprd,iommu-v1"; |
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reg = <0x63000800 0x80>; |
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#iommu-cells = <0>; |
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}; |
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- | |
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iommu_jpg: iommu@62300300 { |
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compatible = "sprd,iommu-v1"; |
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reg = <0x62300300 0x80>; |
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#iommu-cells = <0>; |
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clocks = <&mm_gate 1>; |
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}; |
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...
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