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Documentation / devicetree / bindings / usb / omap-usb.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:38 EST.

1	OMAP GLUE AND OTHER OMAP SPECIFIC COMPONENTS
2	
3	OMAP MUSB GLUE
4	 - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb"
5	 - ti,hwmods : must be "usb_otg_hs"
6	 - multipoint : Should be "1" indicating the musb controller supports
7	   multipoint. This is a MUSB configuration-specific setting.
8	 - num-eps : Specifies the number of endpoints. This is also a
9	   MUSB configuration-specific setting. Should be set to "16"
10	 - ram-bits : Specifies the ram address size. Should be set to "12"
11	 - interface-type : This is a board specific setting to describe the type of
12	   interface between the controller and the phy. It should be "0" or "1"
13	   specifying ULPI and UTMI respectively.
14	 - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
15	   represents PERIPHERAL.
16	 - power : Should be "50". This signifies the controller can supply up to
17	   100mA when operating in host mode.
18	 - usb-phy : the phandle for the PHY device
19	 - phys : the phandle for the PHY device (used by generic PHY framework)
20	 - phy-names : the names of the PHY corresponding to the PHYs present in the
21	   *phy* phandle.
22	
23	Optional properties:
24	 - ctrl-module : phandle of the control module this glue uses to write to
25	   mailbox
26	
27	SOC specific device node entry
28	usb_otg_hs: usb_otg_hs@4a0ab000 {
29		compatible = "ti,omap4-musb";
30		ti,hwmods = "usb_otg_hs";
31		multipoint = <1>;
32		num-eps = <16>;
33		ram-bits = <12>;
34		ctrl-module = <&omap_control_usb>;
35		phys = <&usb2_phy>;
36		phy-names = "usb2-phy";
37	};
38	
39	Board specific device node entry
40	&usb_otg_hs {
41		interface-type = <1>;
42		mode = <3>;
43		power = <50>;
44	};
45	
46	OMAP DWC3 GLUE
47	 - compatible : Should be
48		* "ti,dwc3" for OMAP5 and DRA7
49		* "ti,am437x-dwc3" for AM437x
50	 - ti,hwmods : Should be "usb_otg_ss"
51	 - reg : Address and length of the register set for the device.
52	 - interrupts : The irq number of this device that is used to interrupt the
53	   MPU
54	 - #address-cells, #size-cells : Must be present if the device has sub-nodes
55	 - utmi-mode : controls the source of UTMI/PIPE status for VBUS and OTG ID.
56	   It should be set to "1" for HW mode and "2" for SW mode.
57	 - ranges: the child address space are mapped 1:1 onto the parent address space
58	
59	Optional Properties:
60	 - extcon : phandle for the extcon device omap dwc3 uses to detect
61	   connect/disconnect events.
62	 - vbus-supply : phandle to the regulator device tree node if needed.
63	
64	Sub-nodes:
65	The dwc3 core should be added as subnode to omap dwc3 glue.
66	- dwc3 :
67	   The binding details of dwc3 can be found in:
68	   Documentation/devicetree/bindings/usb/dwc3.txt
69	
70	omap_dwc3 {
71		compatible = "ti,dwc3";
72		ti,hwmods = "usb_otg_ss";
73		reg = <0x4a020000 0x1ff>;
74		interrupts = <0 93 4>;
75		#address-cells = <1>;
76		#size-cells = <1>;
77		utmi-mode = <2>;
78		ranges;
79	};
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