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




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Based on kernel version 4.7.2. Page generated on 2016-08-22 22:44 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	 - reg: Address and length of the register set for the device
9	 - interrupts: Should contain ehci interrupt
10	 - clocks: Should reference the peripheral, host and system clocks
11	 - clock-names: Should contains two strings
12			"ohci_clk" for the peripheral clock
13			"hclk" for the host clock
14			"uhpck" for the system clock
15	 - num-ports: Number of ports.
16	 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
17	   activated for the bus to be powered.
18	 - atmel,oc-gpio: If present, specifies a gpio that needs to be
19	   activated for the overcurrent detection.
20	
21	usb0: ohci@00500000 {
22		compatible = "atmel,at91rm9200-ohci", "usb-ohci";
23		reg = <0x00500000 0x100000>;
24		clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>;
25		clock-names = "ohci_clk", "hclk", "uhpck";
26		interrupts = <20 4>;
27		num-ports = <2>;
28	};
29	
30	EHCI
31	
32	Required properties:
33	 - compatible: Should be "atmel,at91sam9g45-ehci" for USB controllers
34	   used in host mode.
35	 - reg: Address and length of the register set for the device
36	 - interrupts: Should contain ehci interrupt
37	 - clocks: Should reference the peripheral and the UTMI clocks
38	 - clock-names: Should contains two strings
39			"ehci_clk" for the peripheral clock
40			"usb_clk" for the UTMI clock
41	
42	usb1: ehci@00800000 {
43		compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
44		reg = <0x00800000 0x100000>;
45		interrupts = <22 4>;
46		clocks = <&utmi>, <&uhphs_clk>;
47		clock-names = "usb_clk", "ehci_clk";
48	};
49	
50	AT91 USB device controller
51	
52	Required properties:
53	 - compatible: Should be one of the following
54		       "atmel,at91rm9200-udc"
55		       "atmel,at91sam9260-udc"
56		       "atmel,at91sam9261-udc"
57		       "atmel,at91sam9263-udc"
58	 - reg: Address and length of the register set for the device
59	 - interrupts: Should contain macb interrupt
60	 - clocks: Should reference the peripheral and the AHB clocks
61	 - clock-names: Should contains two strings
62			"pclk" for the peripheral clock
63			"hclk" for the AHB clock
64	
65	Optional properties:
66	 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
67	   activated for the bus to be powered.
68	
69	usb1: gadget@fffa4000 {
70		compatible = "atmel,at91rm9200-udc";
71		reg = <0xfffa4000 0x4000>;
72		interrupts = <10 4>;
73		clocks = <&udc_clk>, <&udpck>;
74		clock-names = "pclk", "hclk";
75		atmel,vbus-gpio = <&pioC 5 0>;
76	};
77	
78	Atmel High-Speed USB device controller
79	
80	Required properties:
81	 - compatible: Should be one of the following
82		       "atmel,at91sam9rl-udc"
83		       "atmel,at91sam9g45-udc"
84		       "atmel,sama5d3-udc"
85	 - reg: Address and length of the register set for the device
86	 - interrupts: Should contain usba interrupt
87	 - clocks: Should reference the peripheral and host clocks
88	 - clock-names: Should contains two strings
89			"pclk" for the peripheral clock
90			"hclk" for the host clock
91	 - ep childnode: To specify the number of endpoints and their properties.
92	
93	Optional properties:
94	 - atmel,vbus-gpio: If present, specifies a gpio that allows to detect whether
95	   vbus is present (USB is connected).
96	
97	Required child node properties:
98	 - name: Name of the endpoint.
99	 - reg: Num of the endpoint.
100	 - atmel,fifo-size: Size of the fifo.
101	 - atmel,nb-banks: Number of banks.
102	 - atmel,can-dma: Boolean to specify if the endpoint support DMA.
103	 - atmel,can-isoc: Boolean to specify if the endpoint support ISOC.
104	
105	usb2: gadget@fff78000 {
106		#address-cells = <1>;
107		#size-cells = <0>;
108		compatible = "atmel,at91sam9rl-udc";
109		reg = <0x00600000 0x80000
110		       0xfff78000 0x400>;
111		interrupts = <27 4 0>;
112		clocks = <&utmi>, <&udphs_clk>;
113		clock-names = "hclk", "pclk";
114		atmel,vbus-gpio = <&pioB 19 0>;
115	
116		ep0 {
117			reg = <0>;
118			atmel,fifo-size = <64>;
119			atmel,nb-banks = <1>;
120		};
121	
122		ep1 {
123			reg = <1>;
124			atmel,fifo-size = <1024>;
125			atmel,nb-banks = <2>;
126			atmel,can-dma;
127			atmel,can-isoc;
128		};
129	
130		ep2 {
131			reg = <2>;
132			atmel,fifo-size = <1024>;
133			atmel,nb-banks = <2>;
134			atmel,can-dma;
135			atmel,can-isoc;
136		};
137	
138		ep3 {
139			reg = <3>;
140			atmel,fifo-size = <1024>;
141			atmel,nb-banks = <3>;
142			atmel,can-dma;
143		};
144	
145		ep4 {
146			reg = <4>;
147			atmel,fifo-size = <1024>;
148			atmel,nb-banks = <3>;
149			atmel,can-dma;
150		};
151	
152		ep5 {
153			reg = <5>;
154			atmel,fifo-size = <1024>;
155			atmel,nb-banks = <3>;
156			atmel,can-dma;
157			atmel,can-isoc;
158		};
159	
160		ep6 {
161			reg = <6>;
162			atmel,fifo-size = <1024>;
163			atmel,nb-banks = <3>;
164			atmel,can-dma;
165			atmel,can-isoc;
166		};
167	};
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