Documentation/devicetree/bindings/pci/rcar-pci-host.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2020 Renesas Electronics Corp.
%YAML 1.2
---
$id: http://devicetree.org/schemas/pci/rcar-pci-host.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car PCIe Host

maintainers:
  - Marek Vasut <marek.vasut+renesas@gmail.com>
  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>

allOf:
  - $ref: /schemas/pci/pci-host-bridge.yaml#

properties:
  compatible:
    oneOf:
      - const: renesas,pcie-r8a7779       # R-Car H1
      - items:
          - enum:
              - renesas,pcie-r8a7742      # RZ/G1H
              - renesas,pcie-r8a7743      # RZ/G1M
              - renesas,pcie-r8a7744      # RZ/G1N
              - renesas,pcie-r8a7790      # R-Car H2
              - renesas,pcie-r8a7791      # R-Car M2-W
              - renesas,pcie-r8a7793      # R-Car M2-N
          - const: renesas,pcie-rcar-gen2 # R-Car Gen2 and RZ/G1
      - items:
          - enum:
              - renesas,pcie-r8a774a1     # RZ/G2M
              - renesas,pcie-r8a774b1     # RZ/G2N
              - renesas,pcie-r8a774c0     # RZ/G2E
              - renesas,pcie-r8a774e1     # RZ/G2H
              - renesas,pcie-r8a7795      # R-Car H3
              - renesas,pcie-r8a7796      # R-Car M3-W
              - renesas,pcie-r8a77961     # R-Car M3-W+
              - renesas,pcie-r8a77965     # R-Car M3-N
              - renesas,pcie-r8a77980     # R-Car V3H
              - renesas,pcie-r8a77990     # R-Car E3
          - const: renesas,pcie-rcar-gen3 # R-Car Gen3 and RZ/G2

  reg:
    maxItems: 1

  interrupts:
    minItems: 3
    maxItems: 3

  clocks:
    maxItems: 2

  clock-names:
    items:
      - const: pcie
      - const: pcie_bus

  power-domains:
    maxItems: 1

  resets:
    maxItems: 1

  phys:
    maxItems: 1

  phy-names:
    const: pcie

  vpcie1v5-supply:
    description: The 1.5v regulator to use for PCIe.

  vpcie3v3-supply:
    description: The 3.3v regulator to use for PCIe.

  vpcie12v-supply:
    description: The 12v regulator to use for PCIe.

  iommu-map: true
  iommu-map-mask: true

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - power-domains

if:
  not:
    properties:
      compatible:
        contains:
          const: renesas,pcie-r8a7779
then:
  required:
    - resets

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/r8a7791-sysc.h>

    soc {
        #address-cells = <2>;
        #size-cells = <2>;

        pcie: pcie@fe000000 {
            compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
            reg = <0 0xfe000000 0 0x80000>;
             #address-cells = <3>;
             #size-cells = <2>;
             bus-range = <0x00 0xff>;
             device_type = "pci";
             ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000>,
                      <0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000>,
                      <0x02000000 0 0x30000000 0 0x30000000 0 0x08000000>,
                      <0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>;
             dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000>,
                          <0x42000000 2 0x00000000 2 0x00000000 0 0x40000000>;
             interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
                          <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
                          <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
             #interrupt-cells = <1>;
             interrupt-map-mask = <0 0 0 0>;
             interrupt-map = <0 0 0 0 &gic GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
             clocks = <&cpg CPG_MOD 319>, <&pcie_bus_clk>;
             clock-names = "pcie", "pcie_bus";
             power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
             resets = <&cpg 319>;
             vpcie3v3-supply = <&pcie_3v3>;
             vpcie12v-supply = <&pcie_12v>;
         };
    };