atmel-usb.txt

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    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 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 
   21 usb0: 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 
   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 contain two strings
   39                 "ehci_clk" for the peripheral clock
   40                 "usb_clk" for the UTMI clock
   41 
   42 Optional properties:
   43  - phy_type : For multi port host USB controllers, should be one of
   44    "utmi", or "hsic".
   45 
   46 usb1: ehci@800000 {
   47         compatible = "atmel,at91sam9g45-ehci", "usb-ehci";
   48         reg = <0x00800000 0x100000>;
   49         interrupts = <22 4>;
   50         clocks = <&utmi>, <&uhphs_clk>;
   51         clock-names = "usb_clk", "ehci_clk";
   52 };
   53 
   54 AT91 USB device controller
   55 
   56 Required properties:
   57  - compatible: Should be one of the following
   58                "atmel,at91rm9200-udc"
   59                "atmel,at91sam9260-udc"
   60                "atmel,at91sam9261-udc"
   61                "atmel,at91sam9263-udc"
   62  - reg: Address and length of the register set for the device
   63  - interrupts: Should contain macb interrupt
   64  - clocks: Should reference the peripheral and the AHB clocks
   65  - clock-names: Should contain two strings
   66                 "pclk" for the peripheral clock
   67                 "hclk" for the AHB clock
   68 
   69 Optional properties:
   70  - atmel,vbus-gpio: If present, specifies a gpio that needs to be
   71    activated for the bus to be powered.
   72 
   73 usb1: gadget@fffa4000 {
   74         compatible = "atmel,at91rm9200-udc";
   75         reg = <0xfffa4000 0x4000>;
   76         interrupts = <10 4>;
   77         clocks = <&udc_clk>, <&udpck>;
   78         clock-names = "pclk", "hclk";
   79         atmel,vbus-gpio = <&pioC 5 0>;
   80 };
   81 
   82 Atmel High-Speed USB device controller
   83 
   84 Required properties:
   85  - compatible: Should be one of the following
   86                "atmel,at91sam9rl-udc"
   87                "atmel,at91sam9g45-udc"
   88                "atmel,sama5d3-udc"
   89                "microchip,sam9x60-udc"
   90                "microchip,lan9662-udc"
   91                For "microchip,lan9662-udc" the fallback "atmel,sama5d3-udc"
   92                is required.
   93  - reg: Address and length of the register set for the device
   94  - interrupts: Should contain usba interrupt
   95  - clocks: Should reference the peripheral and host clocks
   96  - clock-names: Should contain two strings
   97                 "pclk" for the peripheral clock
   98                 "hclk" for the host clock
   99 
  100 Deprecated property:
  101  - ep childnode: To specify the number of endpoints and their properties.
  102 
  103 Optional properties:
  104  - atmel,vbus-gpio: If present, specifies a gpio that allows to detect whether
  105    vbus is present (USB is connected).
  106 
  107 Deprecated child node properties:
  108  - name: Name of the endpoint.
  109  - reg: Num of the endpoint.
  110  - atmel,fifo-size: Size of the fifo.
  111  - atmel,nb-banks: Number of banks.
  112  - atmel,can-dma: Boolean to specify if the endpoint support DMA.
  113  - atmel,can-isoc: Boolean to specify if the endpoint support ISOC.
  114 
  115 usb2: gadget@fff78000 {
  116         #address-cells = <1>;
  117         #size-cells = <0>;
  118         compatible = "atmel,at91sam9rl-udc";
  119         reg = <0x00600000 0x80000
  120                0xfff78000 0x400>;
  121         interrupts = <27 4 0>;
  122         clocks = <&utmi>, <&udphs_clk>;
  123         clock-names = "hclk", "pclk";
  124         atmel,vbus-gpio = <&pioB 19 0>;
  125 };

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