xref: /kernel/linux/linux-6.6/Documentation/devicetree/bindings/pci/socionext,uniphier-pcie.yaml

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

title: Socionext UniPhier PCIe host controller

description: |
  UniPhier PCIe host controller is based on the Synopsys DesignWare
  PCI core. It shares common features with the PCIe DesignWare core and
  inherits common properties defined in
  Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml.

maintainers:
  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

allOf:
  - $ref: /schemas/pci/snps,dw-pcie.yaml#

properties:
  compatible:
    enum:
      - socionext,uniphier-pcie

  reg:
    minItems: 3
    maxItems: 4

  reg-names:
    minItems: 3
    items:
      - const: dbi
      - const: link
      - const: config
      - const: atu

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  num-viewport: true

  num-lanes: true

  phys:
    maxItems: 1

  phy-names:
    const: pcie-phy

  interrupt-controller:
    type: object
    additionalProperties: false

    properties:
      interrupt-controller: true

      '#interrupt-cells':
        const: 1

      interrupts:
        maxItems: 1

required:
  - compatible
  - reg
  - reg-names
  - clocks
  - resets

unevaluatedProperties: false

examples:
  - |
    bus {
        gic: interrupt-controller {
            interrupt-controller;
            #interrupt-cells = <3>;
        };
    };

    pcie: pcie@66000000 {
        compatible = "socionext,uniphier-pcie";
        reg-names = "dbi", "link", "config";
        reg = <0x66000000 0x1000>, <0x66010000 0x10000>, <0x2fff0000 0x10000>;
        #address-cells = <3>;
        #size-cells = <2>;
        clocks = <&sys_clk 24>;
        resets = <&sys_rst 24>;
        num-lanes = <1>;
        num-viewport = <1>;
        bus-range = <0x0 0xff>;
        device_type = "pci";
        ranges = <0x81000000 0 0x00000000  0x2ffe0000  0 0x00010000>,
                 <0x82000000 0 0x00000000  0x20000000  0 0x0ffe0000>;
        phy-names = "pcie-phy";
        phys = <&pcie_phy>;
        #interrupt-cells = <1>;
        interrupt-names = "dma", "msi";
        interrupt-parent = <&gic>;
        interrupts = <0 224 4>, <0 225 4>;
        interrupt-map-mask = <0 0 0  7>;
        interrupt-map = <0 0 0  1  &pcie_intc 0>,
                        <0 0 0  2  &pcie_intc 1>,
                        <0 0 0  3  &pcie_intc 2>,
                        <0 0 0  4  &pcie_intc 3>;

        pcie_intc: interrupt-controller {
            interrupt-controller;
            #interrupt-cells = <1>;
            interrupt-parent = <&gic>;
            interrupts = <0 226 4>;
        };
    };