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

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 # Copyright (C) 2020 Renesas Electronics Corp.
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/pci/rcar-pci-host.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: Renesas R-Car PCIe Host
   9
  10 maintainers:
  11   - Marek Vasut <marek.vasut+renesas@gmail.com>
  12   - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
  13
  14 allOf:
  15   - $ref: pci-bus.yaml#
  16
  17 properties:
  18   compatible:
  19     oneOf:
  20       - const: renesas,pcie-r8a7779       # R-Car H1
  21       - items:
  22           - enum:
  23               - renesas,pcie-r8a7742      # RZ/G1H
  24               - renesas,pcie-r8a7743      # RZ/G1M
  25               - renesas,pcie-r8a7744      # RZ/G1N
  26               - renesas,pcie-r8a7790      # R-Car H2
  27               - renesas,pcie-r8a7791      # R-Car M2-W
  28               - renesas,pcie-r8a7793      # R-Car M2-N
  29           - const: renesas,pcie-rcar-gen2 # R-Car Gen2 and RZ/G1
  30       - items:
  31           - enum:
  32               - renesas,pcie-r8a774a1     # RZ/G2M
  33               - renesas,pcie-r8a774b1     # RZ/G2N
  34               - renesas,pcie-r8a774c0     # RZ/G2E
  35               - renesas,pcie-r8a774e1     # RZ/G2H
  36               - renesas,pcie-r8a7795      # R-Car H3
  37               - renesas,pcie-r8a7796      # R-Car M3-W
  38               - renesas,pcie-r8a77961     # R-Car M3-W+
  39               - renesas,pcie-r8a77965     # R-Car M3-N
  40               - renesas,pcie-r8a77980     # R-Car V3H
  41               - renesas,pcie-r8a77990     # R-Car E3
  42           - const: renesas,pcie-rcar-gen3 # R-Car Gen3 and RZ/G2
  43
  44   reg:
  45     maxItems: 1
  46
  47   interrupts:
  48     minItems: 3
  49     maxItems: 3
  50
  51   clocks:
  52     maxItems: 2
  53
  54   clock-names:
  55     items:
  56       - const: pcie
  57       - const: pcie_bus
  58
  59   power-domains:
  60     maxItems: 1
  61
  62   resets:
  63     maxItems: 1
  64
  65   phys:
  66     maxItems: 1
  67
  68   phy-names:
  69     const: pcie
  70
  71 required:
  72   - compatible
  73   - reg
  74   - interrupts
  75   - clocks
  76   - clock-names
  77   - power-domains
  78
  79 if:
  80   not:
  81     properties:
  82       compatible:
  83         contains:
  84           const: renesas,pcie-r8a7779
  85 then:
  86   required:
  87     - resets
  88
  89 unevaluatedProperties: false
  90
  91 examples:
  92   - |
  93     #include <dt-bindings/clock/r8a7791-cpg-mssr.h>
  94     #include <dt-bindings/interrupt-controller/arm-gic.h>
  95     #include <dt-bindings/power/r8a7791-sysc.h>
  96
  97     soc {
  98         #address-cells = <2>;
  99         #size-cells = <2>;
 100
 101         pcie: pcie@fe000000 {
 102             compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
 103             reg = <0 0xfe000000 0 0x80000>;
 104              #address-cells = <3>;
 105              #size-cells = <2>;
 106              bus-range = <0x00 0xff>;
 107              device_type = "pci";
 108              ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000>,
 109                       <0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000>,
 110                       <0x02000000 0 0x30000000 0 0x30000000 0 0x08000000>,
 111                       <0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>;
 112              dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000>,
 113                           <0x42000000 2 0x00000000 2 0x00000000 0 0x40000000>;
 114              interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
 115                           <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
 116                           <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
 117              #interrupt-cells = <1>;
 118              interrupt-map-mask = <0 0 0 0>;
 119              interrupt-map = <0 0 0 0 &gic GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
 120              clocks = <&cpg CPG_MOD 319>, <&pcie_bus_clk>;
 121              clock-names = "pcie", "pcie_bus";
 122              power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
 123              resets = <&cpg 319>;
 124          };
 125     };