GNU Linux-libre 4.14.266-gnu1
[releases.git] / Documentation / devicetree / bindings / phy / brcm,ns2-drd-phy.txt
1 BROADCOM NORTHSTAR2 USB2 (DUAL ROLE DEVICE) PHY
2
3 Required properties:
4  - compatible: brcm,ns2-drd-phy
5  - reg: offset and length of the NS2 PHY related registers.
6  - reg-names
7    The below registers must be provided.
8    icfg - for DRD ICFG configurations
9    rst-ctrl - for DRD IDM reset
10    crmu-ctrl - for CRMU core vdd, PHY and PHY PLL reset
11    usb2-strap - for port over current polarity reversal
12  - #phy-cells: Must be 0. No args required.
13  - vbus-gpios: vbus gpio binding
14  - id-gpios: id gpio binding
15
16 Refer to phy/phy-bindings.txt for the generic PHY binding properties
17
18 Example:
19         usbdrd_phy: phy@66000960 {
20                         #phy-cells = <0>;
21                         compatible = "brcm,ns2-drd-phy";
22                         reg = <0x66000960 0x24>,
23                               <0x67012800 0x4>,
24                               <0x6501d148 0x4>,
25                               <0x664d0700 0x4>;
26                         reg-names = "icfg", "rst-ctrl",
27                                     "crmu-ctrl", "usb2-strap";
28                         id-gpios = <&gpio_g 30 0>;
29                         vbus-gpios = <&gpio_g 31 0>;
30         };