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




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Based on kernel version 4.0. Page generated on 2015-04-14 21:23 EST.

1	Atmel SOC USB controllers
2	
3	OHCI
4	
5	Required properties:
6	 - compatible: Should be "atmel,at91rm9200-ohci" for USB controllers
7	   used in host mode.
8	 - num-ports: Number of ports.
9	 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
10	   activated for the bus to be powered.
11	 - atmel,oc-gpio: If present, specifies a gpio that needs to be
12	   activated for the overcurrent detection.
13	
14	usb0: ohci@00500000 {
15		compatible = "atmel,at91rm9200-ohci", "usb-ohci";
16		reg = <0x00500000 0x100000>;
17		interrupts = <20 4>;
18		num-ports = <2>;
19	};
20	
21	EHCI
22	
23	Required properties:
24	 - compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
25	   used in host mode.
26	
27	usb1: ehci@00800000 {
28		compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
29		reg = <0x00800000 0x100000>;
30		interrupts = <22 4>;
31	};
32	
33	AT91 USB device controller
34	
35	Required properties:
36	 - compatible: Should be one of the following
37		       "atmel,at91rm9200-udc"
38		       "atmel,at91sam9260-udc"
39		       "atmel,at91sam9261-udc"
40		       "atmel,at91sam9263-udc"
41	 - reg: Address and length of the register set for the device
42	 - interrupts: Should contain macb interrupt
43	 - clocks: Should reference the peripheral and the AHB clocks
44	 - clock-names: Should contains two strings
45			"pclk" for the peripheral clock
46			"hclk" for the AHB clock
47	
48	Optional properties:
49	 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
50	   activated for the bus to be powered.
51	
52	usb1: gadget@fffa4000 {
53		compatible = "atmel,at91rm9200-udc";
54		reg = <0xfffa4000 0x4000>;
55		interrupts = <10 4>;
56		atmel,vbus-gpio = <&pioC 5 0>;
57	};
58	
59	Atmel High-Speed USB device controller
60	
61	Required properties:
62	 - compatible: Should be one of the following
63		       "at91sam9rl-udc"
64		       "at91sam9g45-udc"
65		       "sama5d3-udc"
66	 - reg: Address and length of the register set for the device
67	 - interrupts: Should contain usba interrupt
68	 - ep childnode: To specify the number of endpoints and their properties.
69	
70	Optional properties:
71	 - atmel,vbus-gpio: If present, specifies a gpio that allows to detect whether
72	   vbus is present (USB is connected).
73	
74	Required child node properties:
75	 - name: Name of the endpoint.
76	 - reg: Num of the endpoint.
77	 - atmel,fifo-size: Size of the fifo.
78	 - atmel,nb-banks: Number of banks.
79	 - atmel,can-dma: Boolean to specify if the endpoint support DMA.
80	 - atmel,can-isoc: Boolean to specify if the endpoint support ISOC.
81	
82	usb2: gadget@fff78000 {
83		#address-cells = <1>;
84		#size-cells = <0>;
85		compatible = "atmel,at91sam9rl-udc";
86		reg = <0x00600000 0x80000
87		       0xfff78000 0x400>;
88		interrupts = <27 4 0>;
89		atmel,vbus-gpio = <&pioB 19 0>;
90	
91		ep0 {
92			reg = <0>;
93			atmel,fifo-size = <64>;
94			atmel,nb-banks = <1>;
95		};
96	
97		ep1 {
98			reg = <1>;
99			atmel,fifo-size = <1024>;
100			atmel,nb-banks = <2>;
101			atmel,can-dma;
102			atmel,can-isoc;
103		};
104	
105		ep2 {
106			reg = <2>;
107			atmel,fifo-size = <1024>;
108			atmel,nb-banks = <2>;
109			atmel,can-dma;
110			atmel,can-isoc;
111		};
112	
113		ep3 {
114			reg = <3>;
115			atmel,fifo-size = <1024>;
116			atmel,nb-banks = <3>;
117			atmel,can-dma;
118		};
119	
120		ep4 {
121			reg = <4>;
122			atmel,fifo-size = <1024>;
123			atmel,nb-banks = <3>;
124			atmel,can-dma;
125		};
126	
127		ep5 {
128			reg = <5>;
129			atmel,fifo-size = <1024>;
130			atmel,nb-banks = <3>;
131			atmel,can-dma;
132			atmel,can-isoc;
133		};
134	
135		ep6 {
136			reg = <6>;
137			atmel,fifo-size = <1024>;
138			atmel,nb-banks = <3>;
139			atmel,can-dma;
140			atmel,can-isoc;
141		};
142	};
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