Commit | Line | Data |
---|---|---|
7869fc6e PE |
1 | * Renesas RCar PCIe interface |
2 | ||
3 | Required properties: | |
a37b3eaf SH |
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; | |
0cf1337e | 7 | "renesas,pcie-r8a7793" for the R8A7793 SoC; |
a37b3eaf SH |
8 | "renesas,pcie-r8a7795" for the R8A7795 SoC; |
9 | "renesas,pcie-rcar-gen2" for a generic R-Car Gen2 compatible device. | |
10 | ||
11 | When compatible with the generic version, nodes must list the | |
12 | SoC-specific version corresponding to the platform first | |
13 | followed by the generic version. | |
14 | ||
7869fc6e PE |
15 | - reg: base address and length of the pcie controller registers. |
16 | - #address-cells: set to <3> | |
17 | - #size-cells: set to <2> | |
18 | - bus-range: PCI bus numbers covered | |
19 | - device_type: set to "pci" | |
20 | - ranges: ranges for the PCI memory and I/O regions. | |
21 | - dma-ranges: ranges for the inbound memory regions. | |
22 | - interrupts: two interrupt sources for MSI interrupts, followed by interrupt | |
23 | source for hardware related interrupts (e.g. link speed change). | |
24 | - #interrupt-cells: set to <1> | |
25 | - interrupt-map-mask and interrupt-map: standard PCI properties | |
26 | to define the mapping of the PCIe interface to interrupt | |
27 | numbers. | |
28 | - clocks: from common clock binding: clock specifiers for the PCIe controller | |
29 | and PCIe bus clocks. | |
30 | - clock-names: from common clock binding: should be "pcie" and "pcie_bus". | |
31 | ||
32 | Example: | |
33 | ||
34 | SoC specific DT Entry: | |
35 | ||
36 | pcie: pcie@fe000000 { | |
a37b3eaf | 37 | compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2"; |
7869fc6e PE |
38 | reg = <0 0xfe000000 0 0x80000>; |
39 | #address-cells = <3>; | |
40 | #size-cells = <2>; | |
41 | bus-range = <0x00 0xff>; | |
42 | device_type = "pci"; | |
43 | ranges = <0x01000000 0 0x00000000 0 0xfe100000 0 0x00100000 | |
44 | 0x02000000 0 0xfe200000 0 0xfe200000 0 0x00200000 | |
45 | 0x02000000 0 0x30000000 0 0x30000000 0 0x08000000 | |
46 | 0x42000000 0 0x38000000 0 0x38000000 0 0x08000000>; | |
47 | dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000 | |
48 | 0x42000000 2 0x00000000 2 0x00000000 0 0x40000000>; | |
49 | interrupts = <0 116 4>, <0 117 4>, <0 118 4>; | |
50 | #interrupt-cells = <1>; | |
51 | interrupt-map-mask = <0 0 0 0>; | |
52 | interrupt-map = <0 0 0 0 &gic 0 116 4>; | |
53 | clocks = <&mstp3_clks R8A7791_CLK_PCIE>, <&pcie_bus_clk>; | |
54 | clock-names = "pcie", "pcie_bus"; | |
55 | status = "disabled"; | |
56 | }; |