1 * Renesas R-Car PCIe interface
4 compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
5 "renesas,pcie-r8a7790" for the R8A7790 SoC;
6 "renesas,pcie-r8a7791" for the R8A7791 SoC;
7 "renesas,pcie-r8a7793" for the R8A7793 SoC;
8 "renesas,pcie-r8a7795" for the R8A7795 SoC;
9 "renesas,pcie-r8a7796" for the R8A7796 SoC;
10 "renesas,pcie-rcar-gen2" for a generic R-Car Gen2 compatible device.
11 "renesas,pcie-rcar-gen3" for a generic R-Car Gen3 compatible device.
13 When compatible with the generic version, nodes must list the
14 SoC-specific version corresponding to the platform first
15 followed by the generic version.
17 - reg: base address and length of the PCIe controller registers.
18 - #address-cells: set to <3>
19 - #size-cells: set to <2>
20 - bus-range: PCI bus numbers covered
21 - device_type: set to "pci"
22 - ranges: ranges for the PCI memory and I/O regions.
23 - dma-ranges: ranges for the inbound memory regions.
24 - interrupts: two interrupt sources for MSI interrupts, followed by interrupt
25 source for hardware related interrupts (e.g. link speed change).
26 - #interrupt-cells: set to <1>
27 - interrupt-map-mask and interrupt-map: standard PCI properties
28 to define the mapping of the PCIe interface to interrupt numbers.
29 - clocks: from common clock binding: clock specifiers for the PCIe controller
31 - clock-names: from common clock binding: should be "pcie" and "pcie_bus".
35 SoC-specific DT Entry:
38 compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
39 reg = <0 0xfe000000 0 0x80000>;
42 bus-range = <0x00 0xff>;
44 ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000
45 0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000
46 0x02000000 0 0x30000000 0 0x30000000 0 0x08000000
47 0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>;
48 dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000
49 0x42000000 2 0x00000000 2 0x00000000 0 0x40000000>;
50 interrupts = <0 116 4>, <0 117 4>, <0 118 4>;
51 #interrupt-cells = <1>;
52 interrupt-map-mask = <0 0 0 0>;
53 interrupt-map = <0 0 0 0 &gic 0 116 4>;
54 clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>;
55 clock-names = "pcie", "pcie_bus";