xref: /linux/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1Lantiq XWAY SoC RCU USB 1.1/2.0 PHY binding
2===========================================
3
4This binding describes the USB PHY hardware provided by the RCU module on the
5Lantiq XWAY SoCs.
6
7This node has to be a sub node of the Lantiq RCU block.
8
9-------------------------------------------------------------------------------
10Required properties (controller (parent) node):
11- compatible	: Should be one of
12			"lantiq,ase-usb2-phy"
13			"lantiq,danube-usb2-phy"
14			"lantiq,xrx100-usb2-phy"
15			"lantiq,xrx200-usb2-phy"
16			"lantiq,xrx300-usb2-phy"
17- reg		: Defines the following sets of registers in the parent
18		  syscon device
19			- Offset of the USB PHY configuration register
20			- Offset of the USB Analog configuration
21			  register (only for xrx200 and xrx200)
22- clocks	: References to the (PMU) "phy" clk gate.
23- clock-names	: Must be "phy"
24- resets	: References to the RCU USB configuration reset bits.
25- reset-names	: Must be one of the following:
26			"phy" (optional)
27			"ctrl" (shared)
28
29-------------------------------------------------------------------------------
30Example for the USB PHYs on an xRX200 SoC:
31	usb_phy0: usb2-phy@18 {
32		compatible = "lantiq,xrx200-usb2-phy";
33		reg = <0x18 4>, <0x38 4>;
34
35		clocks = <&pmu PMU_GATE_USB0_PHY>;
36		clock-names = "phy";
37		resets = <&reset1 4 4>, <&reset0 4 4>;
38		reset-names = "phy", "ctrl";
39		#phy-cells = <0>;
40	};
41