xref: /openbmc/linux/Documentation/devicetree/bindings/phy/pistachio-usb-phy.txt (revision 90bc35c5da64d05378b15c26a664a0ecedc984ac)
1*90bc35c5SAndrew BrestickerIMG Pistachio USB PHY
2*90bc35c5SAndrew Bresticker=====================
3*90bc35c5SAndrew Bresticker
4*90bc35c5SAndrew BrestickerRequired properties:
5*90bc35c5SAndrew Bresticker--------------------
6*90bc35c5SAndrew Bresticker - compatible: Must be "img,pistachio-usb-phy".
7*90bc35c5SAndrew Bresticker - #phy-cells: Must be 0.  See ./phy-bindings.txt for details.
8*90bc35c5SAndrew Bresticker - clocks: Must contain an entry for each entry in clock-names.
9*90bc35c5SAndrew Bresticker   See ../clock/clock-bindings.txt for details.
10*90bc35c5SAndrew Bresticker - clock-names: Must include "usb_phy".
11*90bc35c5SAndrew Bresticker - img,cr-top: Must constain a phandle to the CR_TOP syscon node.
12*90bc35c5SAndrew Bresticker - img,refclk: Indicates the reference clock source for the USB PHY.
13*90bc35c5SAndrew Bresticker   See <dt-bindings/phy/phy-pistachio-usb.h> for a list of valid values.
14*90bc35c5SAndrew Bresticker
15*90bc35c5SAndrew BrestickerOptional properties:
16*90bc35c5SAndrew Bresticker--------------------
17*90bc35c5SAndrew Bresticker - phy-supply: USB VBUS supply.  Must supply 5.0V.
18*90bc35c5SAndrew Bresticker
19*90bc35c5SAndrew BrestickerExample:
20*90bc35c5SAndrew Bresticker--------
21*90bc35c5SAndrew Brestickerusb_phy: usb-phy {
22*90bc35c5SAndrew Bresticker	compatible = "img,pistachio-usb-phy";
23*90bc35c5SAndrew Bresticker	clocks = <&clk_core CLK_USB_PHY>;
24*90bc35c5SAndrew Bresticker	clock-names = "usb_phy";
25*90bc35c5SAndrew Bresticker	phy-supply = <&usb_vbus>;
26*90bc35c5SAndrew Bresticker	img,refclk = <REFCLK_CLK_CORE>;
27*90bc35c5SAndrew Bresticker	img,cr-top = <&cr_top>;
28*90bc35c5SAndrew Bresticker	#phy-cells = <0>;
29*90bc35c5SAndrew Bresticker};
30