About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

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




Custom Search

Based on kernel version 3.13. Page generated on 2014-01-20 22:01 EST.

1	OMAP HS USB Host
2	
3	Required properties:
4	
5	- compatible: should be "ti,usbhs-host"
6	- reg: should contain one register range i.e. start and length
7	- ti,hwmods: must contain "usb_host_hs"
8	
9	Optional properties:
10	
11	- num-ports: number of USB ports. Usually this is automatically detected
12	  from the IP's revision register but can be overridden by specifying
13	  this property. A maximum of 3 ports are supported at the moment.
14	
15	- portN-mode: String specifying the port mode for port N, where N can be
16	  from 1 to 3. If the port mode is not specified, that port is treated
17	  as unused. When specified, it must be one of the following.
18		"ehci-phy",
19	        "ehci-tll",
20	        "ehci-hsic",
21	        "ohci-phy-6pin-datse0",
22	        "ohci-phy-6pin-dpdm",
23	        "ohci-phy-3pin-datse0",
24	        "ohci-phy-4pin-dpdm",
25	        "ohci-tll-6pin-datse0",
26	        "ohci-tll-6pin-dpdm",
27	        "ohci-tll-3pin-datse0",
28	        "ohci-tll-4pin-dpdm",
29	        "ohci-tll-2pin-datse0",
30	        "ohci-tll-2pin-dpdm",
31	
32	- single-ulpi-bypass: Must be present if the controller contains a single
33	  ULPI bypass control bit. e.g. OMAP3 silicon <= ES2.1
34	
35	Required properties if child node exists:
36	
37	- #address-cells: Must be 1
38	- #size-cells: Must be 1
39	- ranges: must be present
40	
41	Properties for children:
42	
43	The OMAP HS USB Host subsystem contains EHCI and OHCI controllers.
44	See Documentation/devicetree/bindings/usb/omap-ehci.txt and
45	omap3-ohci.txt
46	
47	Example for OMAP4:
48	
49	usbhshost: usbhshost@4a064000 {
50		compatible = "ti,usbhs-host";
51		reg = <0x4a064000 0x800>;
52		ti,hwmods = "usb_host_hs";
53		#address-cells = <1>;
54		#size-cells = <1>;
55		ranges;
56	
57		usbhsohci: ohci@4a064800 {
58			compatible = "ti,ohci-omap3", "usb-ohci";
59			reg = <0x4a064800 0x400>;
60			interrupt-parent = <&gic>;
61			interrupts = <0 76 0x4>;
62		};
63	
64		usbhsehci: ehci@4a064c00 {
65			compatible = "ti,ehci-omap", "usb-ehci";
66			reg = <0x4a064c00 0x400>;
67			interrupt-parent = <&gic>;
68			interrupts = <0 77 0x4>;
69		};
70	};
71	
72	&usbhshost {
73		port1-mode = "ehci-phy";
74		port2-mode = "ehci-tll";
75		port3-mode = "ehci-phy";
76	};
77	
78	&usbhsehci {
79		phys = <&hsusb1_phy 0 &hsusb3_phy>;
80	};
Hide Line Numbers
About Kernel Documentation Linux Kernel Contact Linux Resources Linux Blog

Information is copyright its respective author. All material is available from the Linux Kernel Source distributed under a GPL License. This page is provided as a free service by mjmwired.net.