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132 lines
3.1 KiB
132 lines
3.1 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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# Copyright (c) 2020 MediaTek Inc. |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/memory-controllers/mediatek,smi-larb.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: SMI (Smart Multimedia Interface) Local Arbiter |
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maintainers: |
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- Yong Wu <[email protected]> |
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description: | |
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The hardware block diagram please check bindings/iommu/mediatek,iommu.yaml |
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properties: |
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compatible: |
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oneOf: |
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- enum: |
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- mediatek,mt2701-smi-larb |
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- mediatek,mt2712-smi-larb |
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- mediatek,mt6779-smi-larb |
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- mediatek,mt8167-smi-larb |
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- mediatek,mt8173-smi-larb |
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- mediatek,mt8183-smi-larb |
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- mediatek,mt8192-smi-larb |
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- description: for mt7623 |
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items: |
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- const: mediatek,mt7623-smi-larb |
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- const: mediatek,mt2701-smi-larb |
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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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apb and smi are mandatory. gals(global async local sync) is optional. |
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minItems: 2 |
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maxItems: 3 |
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items: |
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- description: apb is Advanced Peripheral Bus clock, It's the clock for |
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setting the register. |
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- description: smi is the clock for transfer data and command. |
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- description: the clock for gals. |
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clock-names: |
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minItems: 2 |
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maxItems: 3 |
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power-domains: |
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maxItems: 1 |
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mediatek,smi: |
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$ref: /schemas/types.yaml#/definitions/phandle-array |
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description: a phandle to the smi_common node. |
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mediatek,larb-id: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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minimum: 0 |
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maximum: 31 |
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description: the hardware id of this larb. It's only required when this |
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hardward id is not consecutive from its M4U point of view. |
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required: |
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- compatible |
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- reg |
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- clocks |
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- clock-names |
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- power-domains |
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allOf: |
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- if: # HW has gals |
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properties: |
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compatible: |
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enum: |
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- mediatek,mt8183-smi-larb |
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then: |
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properties: |
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clock: |
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items: |
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minItems: 3 |
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maxItems: 3 |
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clock-names: |
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items: |
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- const: apb |
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- const: smi |
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- const: gals |
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else: |
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properties: |
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clock: |
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items: |
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minItems: 2 |
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maxItems: 2 |
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clock-names: |
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items: |
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- const: apb |
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- const: smi |
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- if: |
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properties: |
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compatible: |
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contains: |
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enum: |
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- mediatek,mt2701-smi-larb |
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- mediatek,mt2712-smi-larb |
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- mediatek,mt6779-smi-larb |
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- mediatek,mt8167-smi-larb |
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- mediatek,mt8192-smi-larb |
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then: |
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required: |
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- mediatek,larb-id |
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additionalProperties: false |
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examples: |
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- |+ |
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#include <dt-bindings/clock/mt8173-clk.h> |
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#include <dt-bindings/power/mt8173-power.h> |
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larb1: larb@16010000 { |
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compatible = "mediatek,mt8173-smi-larb"; |
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reg = <0x16010000 0x1000>; |
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mediatek,smi = <&smi_common>; |
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power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>; |
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clocks = <&vdecsys CLK_VDEC_CKEN>, |
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<&vdecsys CLK_VDEC_LARB_CKEN>; |
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clock-names = "apb", "smi"; |
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};
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