Documentation/devicetree/bindings/mips/cpus.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mips/cpus.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: MIPS CPUs
   8
   9 maintainers:
  10   - Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  11   - 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
  12
  13 description: |
  14   The device tree allows to describe the layout of CPUs in a system through
  15   the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
  16   defining properties for every CPU.
  17
  18 properties:
  19   compatible:
  20     enum:
  21       - brcm,bmips3300
  22       - brcm,bmips4350
  23       - brcm,bmips4380
  24       - brcm,bmips5000
  25       - brcm,bmips5200
  26       - ingenic,xburst-mxu1.0
  27       - ingenic,xburst-fpu1.0-mxu1.1
  28       - ingenic,xburst-fpu2.0-mxu2.0
  29       - ingenic,xburst2-fpu2.1-mxu2.1-smt
  30       - loongson,gs264
  31       - mips,m14Kc
  32       - mips,mips4Kc
  33       - mips,mips4KEc
  34       - mips,mips24Kc
  35       - mips,mips24KEc
  36       - mips,mips74Kc
  37       - mips,mips1004Kc
  38       - mti,interaptiv
  39       - mti,mips24KEc
  40       - mti,mips14KEc
  41       - mti,mips14Kc
  42
  43   reg:
  44     maxItems: 1
  45
  46   clocks:
  47     maxItems: 1
  48
  49   device_type: true
  50
  51 allOf:
  52   - if:
  53       properties:
  54         compatible:
  55           contains:
  56             enum:
  57               - ingenic,xburst-mxu1.0
  58               - ingenic,xburst-fpu1.0-mxu1.1
  59               - ingenic,xburst-fpu2.0-mxu2.0
  60               - ingenic,xburst2-fpu2.1-mxu2.1-smt
  61     then:
  62       required:
  63         - device_type
  64         - clocks
  65
  66 required:
  67   - compatible
  68   - reg
  69
  70 additionalProperties: false
  71
  72 examples:
  73   - |
  74     cpus {
  75       #size-cells = <0>;
  76       #address-cells = <1>;
  77
  78       cpu@0 {
  79         compatible = "mips,mips1004Kc";
  80         device_type = "cpu";
  81         reg = <0>;
  82       };
  83
  84       cpu@1 {
  85         compatible = "mips,mips1004Kc";
  86         device_type = "cpu";
  87         reg = <1>;
  88       };
  89     };
  90
  91   - |
  92     // Example 2 (Ingenic CPU)
  93     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
  94
  95     cpus {
  96       #address-cells = <1>;
  97       #size-cells = <0>;
  98
  99       cpu@0 {
 100         compatible = "ingenic,xburst-fpu1.0-mxu1.1";
 101         device_type = "cpu";
 102         reg = <0>;
 103
 104         clocks = <&cgu JZ4780_CLK_CPU>;
 105       };
 106
 107       cpu@1 {
 108         compatible = "ingenic,xburst-fpu1.0-mxu1.1";
 109         device_type = "cpu";
 110         reg = <1>;
 111
 112         clocks = <&cgu JZ4780_CLK_CORE1>;
 113       };
 114     };
 115 ...