| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| # Copyright (c) 2020 MediaTek Inc. |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/memory-controllers/mediatek,smi-larb.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: SMI (Smart Multimedia Interface) Local Arbiter |
| |
| maintainers: |
| - Yong Wu <yong.wu@mediatek.com> |
| |
| description: | |
| The hardware block diagram please check bindings/iommu/mediatek,iommu.yaml |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - mediatek,mt2701-smi-larb |
| - mediatek,mt2712-smi-larb |
| - mediatek,mt6779-smi-larb |
| - mediatek,mt8167-smi-larb |
| - mediatek,mt8173-smi-larb |
| - mediatek,mt8183-smi-larb |
| - mediatek,mt8192-smi-larb |
| - mediatek,mt8195-smi-larb |
| |
| - description: for mt7623 |
| items: |
| - const: mediatek,mt7623-smi-larb |
| - const: mediatek,mt2701-smi-larb |
| |
| reg: |
| maxItems: 1 |
| |
| clocks: |
| description: | |
| apb and smi are mandatory. gals(global async local sync) is optional. |
| minItems: 2 |
| items: |
| - description: apb is Advanced Peripheral Bus clock, It's the clock for |
| setting the register. |
| - description: smi is the clock for transfer data and command. |
| - description: the clock for gals. |
| |
| clock-names: |
| minItems: 2 |
| maxItems: 3 |
| |
| power-domains: |
| maxItems: 1 |
| |
| mediatek,smi: |
| $ref: /schemas/types.yaml#/definitions/phandle-array |
| description: a phandle to the smi_common node. |
| |
| mediatek,larb-id: |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| minimum: 0 |
| maximum: 31 |
| description: the hardware id of this larb. It's only required when this |
| hardward id is not consecutive from its M4U point of view. |
| |
| required: |
| - compatible |
| - reg |
| - clocks |
| - clock-names |
| - power-domains |
| |
| allOf: |
| - if: # HW has gals |
| properties: |
| compatible: |
| enum: |
| - mediatek,mt8183-smi-larb |
| - mediatek,mt8195-smi-larb |
| |
| then: |
| properties: |
| clock: |
| items: |
| minItems: 3 |
| maxItems: 3 |
| clock-names: |
| items: |
| - const: apb |
| - const: smi |
| - const: gals |
| |
| else: |
| properties: |
| clock: |
| items: |
| minItems: 2 |
| maxItems: 2 |
| clock-names: |
| items: |
| - const: apb |
| - const: smi |
| |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - mediatek,mt2701-smi-larb |
| - mediatek,mt2712-smi-larb |
| - mediatek,mt6779-smi-larb |
| - mediatek,mt8167-smi-larb |
| - mediatek,mt8192-smi-larb |
| - mediatek,mt8195-smi-larb |
| |
| then: |
| required: |
| - mediatek,larb-id |
| |
| additionalProperties: false |
| |
| examples: |
| - |+ |
| #include <dt-bindings/clock/mt8173-clk.h> |
| #include <dt-bindings/power/mt8173-power.h> |
| |
| larb1: larb@16010000 { |
| compatible = "mediatek,mt8173-smi-larb"; |
| reg = <0x16010000 0x1000>; |
| mediatek,smi = <&smi_common>; |
| power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>; |
| clocks = <&vdecsys CLK_VDEC_CKEN>, |
| <&vdecsys CLK_VDEC_LARB_CKEN>; |
| clock-names = "apb", "smi"; |
| }; |