mediatek,smi-larb.yaml

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    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 
    8 title: SMI (Smart Multimedia Interface) Local Arbiter
    9 
   10 maintainers:
   11   - Yong Wu <yong.wu@mediatek.com>
   12 
   13 description: |
   14   The hardware block diagram please check bindings/iommu/mediatek,iommu.yaml
   15 
   16 properties:
   17   compatible:
   18     oneOf:
   19       - enum:
   20           - mediatek,mt2701-smi-larb
   21           - mediatek,mt2712-smi-larb
   22           - mediatek,mt6779-smi-larb
   23           - mediatek,mt6795-smi-larb
   24           - mediatek,mt8167-smi-larb
   25           - mediatek,mt8173-smi-larb
   26           - mediatek,mt8183-smi-larb
   27           - mediatek,mt8186-smi-larb
   28           - mediatek,mt8192-smi-larb
   29           - mediatek,mt8195-smi-larb
   30 
   31       - description: for mt7623
   32         items:
   33           - const: mediatek,mt7623-smi-larb
   34           - const: mediatek,mt2701-smi-larb
   35 
   36   reg:
   37     maxItems: 1
   38 
   39   clocks:
   40     description: |
   41       apb and smi are mandatory. gals(global async local sync) is optional.
   42     minItems: 2
   43     items:
   44       - description: apb is Advanced Peripheral Bus clock, It's the clock for
   45           setting the register.
   46       - description: smi is the clock for transfer data and command.
   47       - description: the clock for gals.
   48 
   49   clock-names:
   50     minItems: 2
   51     maxItems: 3
   52 
   53   power-domains:
   54     maxItems: 1
   55 
   56   mediatek,smi:
   57     $ref: /schemas/types.yaml#/definitions/phandle
   58     description: a phandle to the smi_common node.
   59 
   60   mediatek,larb-id:
   61     $ref: /schemas/types.yaml#/definitions/uint32
   62     minimum: 0
   63     maximum: 31
   64     description: the hardware id of this larb. It's only required when this
   65       hardward id is not consecutive from its M4U point of view.
   66 
   67 required:
   68   - compatible
   69   - reg
   70   - clocks
   71   - clock-names
   72   - power-domains
   73 
   74 allOf:
   75   - if:  # HW has gals
   76       properties:
   77         compatible:
   78           enum:
   79             - mediatek,mt8183-smi-larb
   80             - mediatek,mt8186-smi-larb
   81             - mediatek,mt8195-smi-larb
   82 
   83     then:
   84       properties:
   85         clocks:
   86           minItems: 2
   87           maxItems: 3
   88         clock-names:
   89           minItems: 2
   90           items:
   91             - const: apb
   92             - const: smi
   93             - const: gals
   94 
   95     else:
   96       properties:
   97         clocks:
   98           minItems: 2
   99           maxItems: 2
  100         clock-names:
  101           items:
  102             - const: apb
  103             - const: smi
  104 
  105   - if:
  106       properties:
  107         compatible:
  108           contains:
  109             enum:
  110               - mediatek,mt2701-smi-larb
  111               - mediatek,mt2712-smi-larb
  112               - mediatek,mt6779-smi-larb
  113               - mediatek,mt8186-smi-larb
  114               - mediatek,mt8192-smi-larb
  115               - mediatek,mt8195-smi-larb
  116 
  117     then:
  118       required:
  119         - mediatek,larb-id
  120 
  121 additionalProperties: false
  122 
  123 examples:
  124   - |+
  125     #include <dt-bindings/clock/mt8173-clk.h>
  126     #include <dt-bindings/power/mt8173-power.h>
  127 
  128     larb1: larb@16010000 {
  129       compatible = "mediatek,mt8173-smi-larb";
  130       reg = <0x16010000 0x1000>;
  131       mediatek,smi = <&smi_common>;
  132       power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
  133       clocks = <&vdecsys CLK_VDEC_CKEN>,
  134                <&vdecsys CLK_VDEC_LARB_CKEN>;
  135       clock-names = "apb", "smi";
  136     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/memory-controllers/mediatek,smi-larb.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/memory-controllers/mediatek,smi-larb.yaml