tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1Atmel SOC USB controllers
2
3OHCI
4
5Required 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 ohci interrupt
10 - clocks: Should reference the peripheral, host and system clocks
11 - clock-names: Should contain three 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
21usb0: ohci@500000 {
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
30EHCI
31
32Required 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 contain two strings
39 "ehci_clk" for the peripheral clock
40 "usb_clk" for the UTMI clock
41
42usb1: ehci@800000 {
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
50AT91 USB device controller
51
52Required 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 contain two strings
62 "pclk" for the peripheral clock
63 "hclk" for the AHB clock
64
65Optional properties:
66 - atmel,vbus-gpio: If present, specifies a gpio that needs to be
67 activated for the bus to be powered.
68
69usb1: 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
78Atmel High-Speed USB device controller
79
80Required properties:
81 - compatible: Should be one of the following
82 "atmel,at91sam9rl-udc"
83 "atmel,at91sam9g45-udc"
84 "atmel,sama5d3-udc"
85 "microchip,sam9x60-udc"
86 - reg: Address and length of the register set for the device
87 - interrupts: Should contain usba interrupt
88 - clocks: Should reference the peripheral and host clocks
89 - clock-names: Should contain two strings
90 "pclk" for the peripheral clock
91 "hclk" for the host clock
92
93Deprecated property:
94 - ep childnode: To specify the number of endpoints and their properties.
95
96Optional properties:
97 - atmel,vbus-gpio: If present, specifies a gpio that allows to detect whether
98 vbus is present (USB is connected).
99
100Deprecated child node properties:
101 - name: Name of the endpoint.
102 - reg: Num of the endpoint.
103 - atmel,fifo-size: Size of the fifo.
104 - atmel,nb-banks: Number of banks.
105 - atmel,can-dma: Boolean to specify if the endpoint support DMA.
106 - atmel,can-isoc: Boolean to specify if the endpoint support ISOC.
107
108usb2: gadget@fff78000 {
109 #address-cells = <1>;
110 #size-cells = <0>;
111 compatible = "atmel,at91sam9rl-udc";
112 reg = <0x00600000 0x80000
113 0xfff78000 0x400>;
114 interrupts = <27 4 0>;
115 clocks = <&utmi>, <&udphs_clk>;
116 clock-names = "hclk", "pclk";
117 atmel,vbus-gpio = <&pioB 19 0>;
118};