mediatek,smi-larb.yaml (3318B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2# Copyright (c) 2020 MediaTek Inc. 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/memory-controllers/mediatek,smi-larb.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: SMI (Smart Multimedia Interface) Local Arbiter 9 10maintainers: 11 - Yong Wu <yong.wu@mediatek.com> 12 13description: | 14 The hardware block diagram please check bindings/iommu/mediatek,iommu.yaml 15 16properties: 17 compatible: 18 oneOf: 19 - enum: 20 - mediatek,mt2701-smi-larb 21 - mediatek,mt2712-smi-larb 22 - mediatek,mt6779-smi-larb 23 - mediatek,mt8167-smi-larb 24 - mediatek,mt8173-smi-larb 25 - mediatek,mt8183-smi-larb 26 - mediatek,mt8186-smi-larb 27 - mediatek,mt8192-smi-larb 28 - mediatek,mt8195-smi-larb 29 30 - description: for mt7623 31 items: 32 - const: mediatek,mt7623-smi-larb 33 - const: mediatek,mt2701-smi-larb 34 35 reg: 36 maxItems: 1 37 38 clocks: 39 description: | 40 apb and smi are mandatory. gals(global async local sync) is optional. 41 minItems: 2 42 items: 43 - description: apb is Advanced Peripheral Bus clock, It's the clock for 44 setting the register. 45 - description: smi is the clock for transfer data and command. 46 - description: the clock for gals. 47 48 clock-names: 49 minItems: 2 50 maxItems: 3 51 52 power-domains: 53 maxItems: 1 54 55 mediatek,smi: 56 $ref: /schemas/types.yaml#/definitions/phandle 57 description: a phandle to the smi_common node. 58 59 mediatek,larb-id: 60 $ref: /schemas/types.yaml#/definitions/uint32 61 minimum: 0 62 maximum: 31 63 description: the hardware id of this larb. It's only required when this 64 hardward id is not consecutive from its M4U point of view. 65 66required: 67 - compatible 68 - reg 69 - clocks 70 - clock-names 71 - power-domains 72 73allOf: 74 - if: # HW has gals 75 properties: 76 compatible: 77 enum: 78 - mediatek,mt8183-smi-larb 79 - mediatek,mt8186-smi-larb 80 - mediatek,mt8195-smi-larb 81 82 then: 83 properties: 84 clocks: 85 minItems: 2 86 maxItems: 3 87 clock-names: 88 minItems: 2 89 items: 90 - const: apb 91 - const: smi 92 - const: gals 93 94 else: 95 properties: 96 clocks: 97 minItems: 2 98 maxItems: 2 99 clock-names: 100 items: 101 - const: apb 102 - const: smi 103 104 - if: 105 properties: 106 compatible: 107 contains: 108 enum: 109 - mediatek,mt2701-smi-larb 110 - mediatek,mt2712-smi-larb 111 - mediatek,mt6779-smi-larb 112 - mediatek,mt8186-smi-larb 113 - mediatek,mt8192-smi-larb 114 - mediatek,mt8195-smi-larb 115 116 then: 117 required: 118 - mediatek,larb-id 119 120additionalProperties: false 121 122examples: 123 - |+ 124 #include <dt-bindings/clock/mt8173-clk.h> 125 #include <dt-bindings/power/mt8173-power.h> 126 127 larb1: larb@16010000 { 128 compatible = "mediatek,mt8173-smi-larb"; 129 reg = <0x16010000 0x1000>; 130 mediatek,smi = <&smi_common>; 131 power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>; 132 clocks = <&vdecsys CLK_VDEC_CKEN>, 133 <&vdecsys CLK_VDEC_LARB_CKEN>; 134 clock-names = "apb", "smi"; 135 };