loongson.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/pci/loongson.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Loongson PCI Host Controller
    8 
    9 maintainers:
   10   - Jiaxun Yang <jiaxun.yang@flygoat.com>
   11 
   12 description: |+
   13   PCI host controller found on Loongson PCHs and SoCs.
   14 
   15 allOf:
   16   - $ref: /schemas/pci/pci-bus.yaml#
   17 
   18 properties:
   19   compatible:
   20     enum:
   21       - loongson,ls2k-pci
   22       - loongson,ls7a-pci
   23       - loongson,rs780e-pci
   24 
   25   reg:
   26     minItems: 1
   27     items:
   28       - description: CFG0 standard config space register
   29       - description: CFG1 extended config space register
   30 
   31   ranges:
   32     minItems: 1
   33     maxItems: 3
   34 
   35 
   36 required:
   37   - compatible
   38   - reg
   39   - ranges
   40 
   41 unevaluatedProperties: false
   42 
   43 examples:
   44   - |
   45 
   46     bus {
   47         #address-cells = <2>;
   48         #size-cells = <2>;
   49         pcie@1a000000 {
   50             compatible = "loongson,rs780e-pci";
   51             device_type = "pci";
   52             #address-cells = <3>;
   53             #size-cells = <2>;
   54 
   55             // CPU_PHYSICAL(2)  SIZE(2)
   56             reg = <0x0 0x1a000000  0x0 0x2000000>;
   57 
   58             // BUS_ADDRESS(3)  CPU_PHYSICAL(2)  SIZE(2)
   59             ranges = <0x01000000 0x0 0x00004000  0x0 0x00004000  0x0 0x00004000>,
   60                      <0x02000000 0x0 0x40000000  0x0 0x40000000  0x0 0x40000000>;
   61         };
   62     };
   63 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/pci/loongson.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pci/loongson.yaml