1 * Synopsys DesignWare PCIe interface
4 - compatible: should contain "snps,dw-pcie" to identify the core.
5 - reg: Should contain the configuration address space.
6 - reg-names: Must be "config" for the PCIe configuration space.
7 (The old way of getting the configuration address space from "ranges"
8 is deprecated and should be avoided.)
9 - num-lanes: number of lanes to use
11 - #address-cells: set to <3>
12 - #size-cells: set to <2>
13 - device_type: set to "pci"
14 - ranges: ranges for the PCI memory and I/O regions
15 - #interrupt-cells: set to <1>
16 - interrupt-map-mask and interrupt-map: standard PCI
17 properties to define the mapping of the PCIe interface to interrupt
20 - num-ib-windows: number of inbound address translation windows
21 - num-ob-windows: number of outbound address translation windows
24 - num-lanes: number of lanes to use (this property should be specified unless
25 the link is brought already up in BIOS)
26 - reset-gpio: GPIO pin number of power good signal
27 - clocks: Must contain an entry for each entry in clock-names.
28 See ../clocks/clock-bindings.txt for details.
29 - clock-names: Must include the following entries:
33 - num-viewport: number of view ports configured in hardware. If a platform
34 does not specify it, the driver assumes 2.
35 - bus-range: PCI bus numbers covered (it is recommended for new devicetrees
36 to specify this property, to keep backwards compatibility a range of
37 0x00-0xff is assumed if not present)
40 - max-functions: maximum number of functions that can be configured
42 Example configuration:
45 compatible = "snps,dw-pcie";
46 reg = <0xdffff000 0x1000>, /* Controller registers */
47 <0xd0000000 0x2000>; /* PCI config space */
48 reg-names = "ctrlreg", "config";
52 ranges = <0x81000000 0 0x00000000 0xde000000 0 0x00010000
53 0x82000000 0 0xd0400000 0xd0400000 0 0x0d000000>;
54 interrupts = <25>, <24>;
55 #interrupt-cells = <1>;