xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunBroadcom Stingray PCIe PHY
2*4882a593Smuzhiyun
3*4882a593SmuzhiyunRequired properties:
4*4882a593Smuzhiyun- compatible: must be "brcm,sr-pcie-phy"
5*4882a593Smuzhiyun- reg: base address and length of the PCIe SS register space
6*4882a593Smuzhiyun- brcm,sr-cdru: phandle to the CDRU syscon node
7*4882a593Smuzhiyun- brcm,sr-mhb: phandle to the MHB syscon node
8*4882a593Smuzhiyun- #phy-cells: Must be 1, denotes the PHY index
9*4882a593Smuzhiyun
10*4882a593SmuzhiyunFor PAXB based root complex, one can have a configuration of up to 8 PHYs
11*4882a593SmuzhiyunPHY index goes from 0 to 7
12*4882a593Smuzhiyun
13*4882a593SmuzhiyunFor the internal PAXC based root complex, PHY index is always 8
14*4882a593Smuzhiyun
15*4882a593SmuzhiyunExample:
16*4882a593Smuzhiyun	mhb: syscon@60401000 {
17*4882a593Smuzhiyun		compatible = "brcm,sr-mhb", "syscon";
18*4882a593Smuzhiyun		reg = <0 0x60401000 0 0x38c>;
19*4882a593Smuzhiyun	};
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun	cdru: syscon@6641d000 {
22*4882a593Smuzhiyun		compatible = "brcm,sr-cdru", "syscon";
23*4882a593Smuzhiyun		reg = <0 0x6641d000 0 0x400>;
24*4882a593Smuzhiyun	};
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun	pcie_phy: phy@40000000 {
27*4882a593Smuzhiyun		compatible = "brcm,sr-pcie-phy";
28*4882a593Smuzhiyun		reg = <0 0x40000000 0 0x800>;
29*4882a593Smuzhiyun		brcm,sr-cdru = <&cdru>;
30*4882a593Smuzhiyun		brcm,sr-mhb = <&mhb>;
31*4882a593Smuzhiyun		#phy-cells = <1>;
32*4882a593Smuzhiyun	};
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun	/* users of the PCIe PHY */
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun	pcie0: pcie@48000000 {
37*4882a593Smuzhiyun		...
38*4882a593Smuzhiyun		...
39*4882a593Smuzhiyun		phys = <&pcie_phy 0>;
40*4882a593Smuzhiyun		phy-names = "pcie-phy";
41*4882a593Smuzhiyun	};
42