loongson,liointc.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: "http://devicetree.org/schemas/interrupt-controller/loongson,liointc.yaml#"
    5 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
    6 
    7 title: Loongson Local I/O Interrupt Controller
    8 
    9 maintainers:
   10   - Jiaxun Yang <jiaxun.yang@flygoat.com>
   11 
   12 description: |
   13   This interrupt controller is found in the Loongson-3 family of chips and
   14   Loongson-2K1000 chip, as the primary package interrupt controller which
   15   can route local I/O interrupt to interrupt lines of cores.
   16 
   17 allOf:
   18   - $ref: /schemas/interrupt-controller.yaml#
   19 
   20 properties:
   21   compatible:
   22     enum:
   23       - loongson,liointc-1.0
   24       - loongson,liointc-1.0a
   25       - loongson,liointc-2.0
   26 
   27   reg:
   28     minItems: 1
   29     maxItems: 3
   30 
   31   reg-names:
   32     items:
   33       - const: main
   34       - const: isr0
   35       - const: isr1
   36 
   37   interrupt-controller: true
   38 
   39   interrupts:
   40     description:
   41       Interrupt source of the CPU interrupts.
   42     minItems: 1
   43     maxItems: 4
   44 
   45   interrupt-names:
   46     description: List of names for the parent interrupts.
   47     items:
   48       - const: int0
   49       - const: int1
   50       - const: int2
   51       - const: int3
   52     minItems: 1
   53 
   54   '#interrupt-cells':
   55     const: 2
   56 
   57   'loongson,parent_int_map':
   58     description: |
   59       This property points how the children interrupts will be mapped into CPU
   60       interrupt lines. Each cell refers to a parent interrupt line from 0 to 3
   61       and each bit in the cell refers to a child interrupt from 0 to 31.
   62       If a CPU interrupt line didn't connect with liointc, then keep its
   63       cell with zero.
   64     $ref: /schemas/types.yaml#/definitions/uint32-array
   65     minItems: 4
   66     maxItems: 4
   67 
   68 required:
   69   - compatible
   70   - reg
   71   - interrupts
   72   - interrupt-controller
   73   - '#interrupt-cells'
   74   - 'loongson,parent_int_map'
   75 
   76 
   77 unevaluatedProperties: false
   78 
   79 if:
   80   properties:
   81     compatible:
   82       contains:
   83         enum:
   84           - loongson,liointc-2.0
   85 
   86 then:
   87   properties:
   88     reg:
   89       minItems: 3
   90 
   91   required:
   92     - reg-names
   93 
   94 else:
   95   properties:
   96     reg:
   97       maxItems: 1
   98 
   99 examples:
  100   - |
  101     iointc: interrupt-controller@3ff01400 {
  102       compatible = "loongson,liointc-1.0";
  103       reg = <0x3ff01400 0x64>;
  104 
  105       interrupt-controller;
  106       #interrupt-cells = <2>;
  107 
  108       interrupt-parent = <&cpuintc>;
  109       interrupts = <2>, <3>;
  110       interrupt-names = "int0", "int1";
  111 
  112       loongson,parent_int_map = <0xf0ffffff>, /* int0 */
  113                                 <0x0f000000>, /* int1 */
  114                                 <0x00000000>, /* int2 */
  115                                 <0x00000000>; /* int3 */
  116 
  117     };
  118 
  119 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/interrupt-controller/loongson,liointc.yaml

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sys/contrib/device-tree/Bindings/interrupt-controller/loongson,liointc.yaml