1* Renesas R-Car PCIe interface
2
3Required properties:
4compatible: "renesas,pcie-r8a7742" for the R8A7742 SoC;
5	    "renesas,pcie-r8a7743" for the R8A7743 SoC;
6	    "renesas,pcie-r8a7744" for the R8A7744 SoC;
7	    "renesas,pcie-r8a774a1" for the R8A774A1 SoC;
8	    "renesas,pcie-r8a774b1" for the R8A774B1 SoC;
9	    "renesas,pcie-r8a774c0" for the R8A774C0 SoC;
10	    "renesas,pcie-r8a7779" for the R8A7779 SoC;
11	    "renesas,pcie-r8a7790" for the R8A7790 SoC;
12	    "renesas,pcie-r8a7791" for the R8A7791 SoC;
13	    "renesas,pcie-r8a7793" for the R8A7793 SoC;
14	    "renesas,pcie-r8a7795" for the R8A7795 SoC;
15	    "renesas,pcie-r8a7796" for the R8A77960 SoC;
16	    "renesas,pcie-r8a77961" for the R8A77961 SoC;
17	    "renesas,pcie-r8a77980" for the R8A77980 SoC;
18	    "renesas,pcie-r8a77990" for the R8A77990 SoC;
19	    "renesas,pcie-rcar-gen2" for a generic R-Car Gen2 or
20				     RZ/G1 compatible device.
21	    "renesas,pcie-rcar-gen3" for a generic R-Car Gen3 or
22				     RZ/G2 compatible device.
23
24	    When compatible with the generic version, nodes must list the
25	    SoC-specific version corresponding to the platform first
26	    followed by the generic version.
27
28- reg: base address and length of the PCIe controller registers.
29- #address-cells: set to <3>
30- #size-cells: set to <2>
31- bus-range: PCI bus numbers covered
32- device_type: set to "pci"
33- ranges: ranges for the PCI memory and I/O regions.
34- dma-ranges: ranges for the inbound memory regions.
35- interrupts: two interrupt sources for MSI interrupts, followed by interrupt
36	source for hardware related interrupts (e.g. link speed change).
37- #interrupt-cells: set to <1>
38- interrupt-map-mask and interrupt-map: standard PCI properties
39	to define the mapping of the PCIe interface to interrupt numbers.
40- clocks: from common clock binding: clock specifiers for the PCIe controller
41	and PCIe bus clocks.
42- clock-names: from common clock binding: should be "pcie" and "pcie_bus".
43
44Optional properties:
45- phys: from common PHY binding: PHY phandle and specifier (only make sense
46	for R-Car gen3 SoCs where the PCIe PHYs have their own register blocks).
47- phy-names: from common PHY binding: should be "pcie".
48
49Example:
50
51SoC-specific DT Entry:
52
53	pcie: pcie@fe000000 {
54		compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
55		reg = <0 0xfe000000 0 0x80000>;
56		#address-cells = <3>;
57		#size-cells = <2>;
58		bus-range = <0x00 0xff>;
59		device_type = "pci";
60		ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000
61			  0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000
62			  0x02000000 0 0x30000000 0 0x30000000 0 0x08000000
63			  0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>;
64		dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000
65			      0x42000000 2 0x00000000 2 0x00000000 0 0x40000000>;
66		interrupts = <0 116 4>, <0 117 4>, <0 118 4>;
67		#interrupt-cells = <1>;
68		interrupt-map-mask = <0 0 0 0>;
69		interrupt-map = <0 0 0 0 &gic 0 116 4>;
70		clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>;
71		clock-names = "pcie", "pcie_bus";
72	};
73