Bindings/bus/nvidia,tegra210-aconnect.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/bus/nvidia,tegra210-aconnect.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NVIDIA Tegra ACONNECT Bus
   8
   9 description: |
  10   The Tegra ACONNECT bus is an AXI switch which is used to connect various
  11   components inside the Audio Processing Engine (APE). All CPU accesses to
  12   the APE subsystem go through the ACONNECT via an APB to AXI wrapper. All
  13   devices accessed via the ACONNECT are described by child-nodes.
  14
  15 maintainers:
  16   - Jon Hunter <jonathanh@nvidia.com>
  17
  18 properties:
  19   compatible:
  20     oneOf:
  21       - const: nvidia,tegra210-aconnect
  22       - items:
  23           - enum:
  24               - nvidia,tegra234-aconnect
  25               - nvidia,tegra186-aconnect
  26               - nvidia,tegra194-aconnect
  27           - const: nvidia,tegra210-aconnect
  28
  29   clocks:
  30     items:
  31       - description: Must contain the entry for APE clock
  32       - description: Must contain the entry for APE interface clock
  33
  34   clock-names:
  35     items:
  36       - const: ape
  37       - const: apb2ape
  38
  39   power-domains:
  40     maxItems: 1
  41
  42   "#address-cells":
  43     enum: [ 1, 2 ]
  44
  45   "#size-cells":
  46     enum: [ 1, 2 ]
  47
  48   ranges: true
  49
  50 patternProperties:
  51   "@[0-9a-f]+$":
  52     type: object
  53
  54 required:
  55   - compatible
  56   - clocks
  57   - clock-names
  58   - power-domains
  59   - "#address-cells"
  60   - "#size-cells"
  61   - ranges
  62
  63 additionalProperties: false
  64
  65 examples:
  66   - |
  67     #include<dt-bindings/clock/tegra210-car.h>
  68
  69     aconnect@702c0000 {
  70         compatible = "nvidia,tegra210-aconnect";
  71         clocks = <&tegra_car TEGRA210_CLK_APE>,
  72                  <&tegra_car TEGRA210_CLK_APB2APE>;
  73         clock-names = "ape", "apb2ape";
  74         power-domains = <&pd_audio>;
  75
  76         #address-cells = <1>;
  77         #size-cells = <1>;
  78         ranges = <0x702c0000 0x702c0000 0x00040000>;
  79
  80         // Child device nodes follow ...
  81     };
  82
  83 ...