Documentation/devicetree/bindings/mips/cpus.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mips/cpus.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MIPS CPUs

maintainers:
  - Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>

description: |
  The device tree allows to describe the layout of CPUs in a system through
  the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
  defining properties for every CPU.

properties:
  compatible:
    enum:
      - brcm,bmips3300
      - brcm,bmips4350
      - brcm,bmips4380
      - brcm,bmips5000
      - brcm,bmips5200
      - img,i6500
      - ingenic,xburst-fpu1.0-mxu1.1
      - ingenic,xburst-fpu2.0-mxu2.0
      - ingenic,xburst-mxu1.0
      - ingenic,xburst2-fpu2.1-mxu2.1-smt
      - loongson,gs264
      - mips,m14Kc
      - mips,mips1004Kc
      - mips,mips24KEc
      - mips,mips24Kc
      - mips,mips4KEc
      - mips,mips4Kc
      - mips,mips74Kc
      - mti,interaptiv
      - mti,mips14KEc
      - mti,mips14Kc
      - mti,mips24KEc

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  device_type: true

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - ingenic,xburst-mxu1.0
              - ingenic,xburst-fpu1.0-mxu1.1
              - ingenic,xburst-fpu2.0-mxu2.0
              - ingenic,xburst2-fpu2.1-mxu2.1-smt
    then:
      required:
        - device_type
        - clocks

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    cpus {
      #size-cells = <0>;
      #address-cells = <1>;

      cpu@0 {
        compatible = "mips,mips1004Kc";
        device_type = "cpu";
        reg = <0>;
      };

      cpu@1 {
        compatible = "mips,mips1004Kc";
        device_type = "cpu";
        reg = <1>;
      };
    };

  - |
    // Example 2 (Ingenic CPU)
    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>

    cpus {
      #address-cells = <1>;
      #size-cells = <0>;

      cpu@0 {
        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
        device_type = "cpu";
        reg = <0>;

        clocks = <&cgu JZ4780_CLK_CPU>;
      };

      cpu@1 {
        compatible = "ingenic,xburst-fpu1.0-mxu1.1";
        device_type = "cpu";
        reg = <1>;

        clocks = <&cgu JZ4780_CLK_CORE1>;
      };
    };
...