linux/linux-5.4.31/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.txt

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* Cadence PCIe endpoint controller
Required properties:
- compatible: Should contain "cdns,cdns-pcie-ep" to identify the IP used.
- reg: Should contain the controller register base address and AXI interface
region base address respectively.
- reg-names: Must be "reg" and "mem" respectively.
- cdns,max-outbound-regions: Set to maximum number of outbound regions
Optional properties:
- max-functions: Maximum number of functions that can be configured (default 1).
- phys: From PHY bindings: List of Generic PHY phandles. One per lane if more
than one in the list. If only one PHY listed it must manage all lanes.
- phy-names: List of names to identify the PHY.
Example:
pcie@fc000000 {
compatible = "cdns,cdns-pcie-ep";
reg = <0x0 0xfc000000 0x0 0x01000000>,
<0x0 0x80000000 0x0 0x40000000>;
reg-names = "reg", "mem";
cdns,max-outbound-regions = <16>;
max-functions = /bits/ 8 <8>;
phys = <&ep_phy0 &ep_phy1>;
phy-names = "pcie-lane0","pcie-lane1";
};