Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml

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

title: Microchip PCIe Root Port Bridge Controller Device Tree Bindings

maintainers:
  - Daire McNamara <daire.mcnamara@microchip.com>

allOf:
  - $ref: /schemas/pci/pci-bus.yaml#
  - $ref: /schemas/interrupt-controller/msi-controller.yaml#

properties:
  compatible:
    const: microchip,pcie-host-1.0 # PolarFire

  reg:
    maxItems: 2

  reg-names:
    items:
      - const: cfg
      - const: apb

  interrupts:
    minItems: 1
    items:
      - description: PCIe host controller
      - description: builtin MSI controller

  interrupt-names:
    minItems: 1
    items:
      - const: pcie
      - const: msi

  ranges:
    maxItems: 1

  msi-controller:
    description: Identifies the node as an MSI controller.

  msi-parent:
    description: MSI controller the device is capable of using.

  interrupt-controller:
    type: object
    properties:
      '#address-cells':
        const: 0

      '#interrupt-cells':
        const: 1

      interrupt-controller: true

    required:
      - '#address-cells'
      - '#interrupt-cells'
      - interrupt-controller

    additionalProperties: false

required:
  - reg
  - reg-names
  - "#interrupt-cells"
  - interrupts
  - interrupt-map-mask
  - interrupt-map
  - msi-controller

unevaluatedProperties: false

examples:
  - |
    soc {
            #address-cells = <2>;
            #size-cells = <2>;
            pcie0: pcie@2030000000 {
                    compatible = "microchip,pcie-host-1.0";
                    reg = <0x0 0x70000000 0x0 0x08000000>,
                          <0x0 0x43000000 0x0 0x00010000>;
                    reg-names = "cfg", "apb";
                    device_type = "pci";
                    #address-cells = <3>;
                    #size-cells = <2>;
                    #interrupt-cells = <1>;
                    interrupts = <119>;
                    interrupt-map-mask = <0x0 0x0 0x0 0x7>;
                    interrupt-map = <0 0 0 1 &pcie_intc0 0>,
                                    <0 0 0 2 &pcie_intc0 1>,
                                    <0 0 0 3 &pcie_intc0 2>,
                                    <0 0 0 4 &pcie_intc0 3>;
                    interrupt-parent = <&plic0>;
                    msi-parent = <&pcie0>;
                    msi-controller;
                    bus-range = <0x00 0x7f>;
                    ranges = <0x03000000 0x0 0x78000000 0x0 0x78000000 0x0 0x04000000>;
                    pcie_intc0: interrupt-controller {
                        #address-cells = <0>;
                        #interrupt-cells = <1>;
                        interrupt-controller;
                    };
            };
    };