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-* Renesas R-Car PCIe interface
-
-Required properties:
-compatible: "renesas,pcie-r8a7743" for the R8A7743 SoC;
- "renesas,pcie-r8a7744" for the R8A7744 SoC;
- "renesas,pcie-r8a774a1" for the R8A774A1 SoC;
- "renesas,pcie-r8a774b1" for the R8A774B1 SoC;
- "renesas,pcie-r8a774c0" for the R8A774C0 SoC;
- "renesas,pcie-r8a7779" for the R8A7779 SoC;
- "renesas,pcie-r8a7790" for the R8A7790 SoC;
- "renesas,pcie-r8a7791" for the R8A7791 SoC;
- "renesas,pcie-r8a7793" for the R8A7793 SoC;
- "renesas,pcie-r8a7795" for the R8A7795 SoC;
- "renesas,pcie-r8a7796" for the R8A7796 SoC;
- "renesas,pcie-r8a77980" for the R8A77980 SoC;
- "renesas,pcie-r8a77990" for the R8A77990 SoC;
- "renesas,pcie-rcar-gen2" for a generic R-Car Gen2 or
- RZ/G1 compatible device.
- "renesas,pcie-rcar-gen3" for a generic R-Car Gen3 or
- RZ/G2 compatible device.
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
-
-- reg: base address and length of the PCIe controller registers.
-- #address-cells: set to <3>
-- #size-cells: set to <2>
-- bus-range: PCI bus numbers covered
-- device_type: set to "pci"
-- ranges: ranges for the PCI memory and I/O regions.
-- dma-ranges: ranges for the inbound memory regions.
-- interrupts: two interrupt sources for MSI interrupts, followed by interrupt
- source for hardware related interrupts (e.g. link speed change).
-- #interrupt-cells: set to <1>
-- interrupt-map-mask and interrupt-map: standard PCI properties
- to define the mapping of the PCIe interface to interrupt numbers.
-- clocks: from common clock binding: clock specifiers for the PCIe controller
- and PCIe bus clocks.
-- clock-names: from common clock binding: should be "pcie" and "pcie_bus".
-
-Optional properties:
-- phys: from common PHY binding: PHY phandle and specifier (only make sense
- for R-Car gen3 SoCs where the PCIe PHYs have their own register blocks).
-- phy-names: from common PHY binding: should be "pcie".
-
-Example:
-
-SoC-specific DT Entry:
-
- 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 = <0 116 4>, <0 117 4>, <0 118 4>;
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic 0 116 4>;
- clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>;
- clock-names = "pcie", "pcie_bus";
- };