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

   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         ep@0 {
 117                 reg = <0>;
 118                 atmel,fifo-size = <64>;
 119                 atmel,nb-banks = <1>;
 120         };
 121
 122         ep@1 {
 123                 reg = <1>;
 124                 atmel,fifo-size = <1024>;
 125                 atmel,nb-banks = <2>;
 126                 atmel,can-dma;
 127                 atmel,can-isoc;
 128         };
 129
 130         ep@2 {
 131                 reg = <2>;
 132                 atmel,fifo-size = <1024>;
 133                 atmel,nb-banks = <2>;
 134                 atmel,can-dma;
 135                 atmel,can-isoc;
 136         };
 137
 138         ep@3 {
 139                 reg = <3>;
 140                 atmel,fifo-size = <1024>;
 141                 atmel,nb-banks = <3>;
 142                 atmel,can-dma;
 143         };
 144
 145         ep@4 {
 146                 reg = <4>;
 147                 atmel,fifo-size = <1024>;
 148                 atmel,nb-banks = <3>;
 149                 atmel,can-dma;
 150         };
 151
 152         ep@5 {
 153                 reg = <5>;
 154                 atmel,fifo-size = <1024>;
 155                 atmel,nb-banks = <3>;
 156                 atmel,can-dma;
 157                 atmel,can-isoc;
 158         };
 159
 160         ep@6 {
 161                 reg = <6>;
 162                 atmel,fifo-size = <1024>;
 163                 atmel,nb-banks = <3>;
 164                 atmel,can-dma;
 165                 atmel,can-isoc;
 166         };
 167 };