Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: "http://devicetree.org/schemas/arm/nvidia,tegra194-ccplex.yaml#"
   5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
   6
   7 title: NVIDIA Tegra194 CPU Complex device tree bindings
   8
   9 maintainers:
  10   - Thierry Reding <thierry.reding@gmail.com>
  11   - Jonathan Hunter <jonathanh@nvidia.com>
  12   - Sumit Gupta <sumitg@nvidia.com>
  13
  14 description: |+
  15   Tegra194 SOC has homogeneous architecture where each cluster has two
  16   symmetric cores. Compatible string in "cpus" node represents the CPU
  17   Complex having all clusters.
  18
  19 properties:
  20   $nodename:
  21     const: cpus
  22
  23   compatible:
  24     enum:
  25       - nvidia,tegra194-ccplex
  26
  27   nvidia,bpmp:
  28     $ref: '/schemas/types.yaml#/definitions/phandle'
  29     description: |
  30       Specifies the bpmp node that needs to be queried to get
  31       operating point data for all CPUs.
  32
  33 additionalProperties: true
  34
  35 examples:
  36   - |
  37     cpus {
  38       compatible = "nvidia,tegra194-ccplex";
  39       nvidia,bpmp = <&bpmp>;
  40       #address-cells = <1>;
  41       #size-cells = <0>;
  42
  43       cpu0_0: cpu@0 {
  44         compatible = "nvidia,tegra194-carmel";
  45         device_type = "cpu";
  46         reg = <0x0>;
  47         enable-method = "psci";
  48       };
  49
  50       cpu0_1: cpu@1 {
  51         compatible = "nvidia,tegra194-carmel";
  52         device_type = "cpu";
  53         reg = <0x001>;
  54         enable-method = "psci";
  55       };
  56
  57       cpu1_0: cpu@100 {
  58         compatible = "nvidia,tegra194-carmel";
  59         device_type = "cpu";
  60         reg = <0x100>;
  61         enable-method = "psci";
  62       };
  63
  64       cpu1_1: cpu@101 {
  65         compatible = "nvidia,tegra194-carmel";
  66         device_type = "cpu";
  67         reg = <0x101>;
  68         enable-method = "psci";
  69       };
  70     };
  71 ...