Documentation/devicetree/bindings/usb/usb251xb.txt

   1 Microchip USB 2.0 Hi-Speed Hub Controller
   2
   3 The device node for the configuration of a Microchip USB251xB/xBi USB 2.0
   4 Hi-Speed Controller.
   5
   6 Required properties :
   7  - compatible : Should be "microchip,usb251xb" or one of the specific types:
   8         "microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
   9         "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi"
  10  - reset-gpios : Should specify the gpio for hub reset
  11  - reg : I2C address on the selected bus (default is <0x2C>)
  12
  13 Optional properties :
  14  - skip-config : Skip Hub configuration, but only send the USB-Attach command
  15  - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
  16  - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
  17  - device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3)
  18  - language-id : Set USB Language ID (16 bit, default is 0x0000)
  19  - manufacturer : Set USB Manufacturer string (max 31 characters long)
  20  - product : Set USB Product string (max 31 characters long)
  21  - serial : Set USB Serial string (max 31 characters long)
  22  - {bus,self}-powered : selects between self- and bus-powered operation (default
  23         is self-powered)
  24  - disable-hi-speed : disable USB Hi-Speed support
  25  - {multi,single}-tt : selects between multi- and single-transaction-translator
  26         (default is multi-tt)
  27  - disable-eop : disable End of Packet generation in full-speed mode
  28  - {ganged,individual}-sensing : select over-current sense type in self-powered
  29         mode (default is individual)
  30  - {ganged,individual}-port-switching : select port power switching mode
  31         (default is individual)
  32  - dynamic-power-switching : enable auto-switching from self- to bus-powered
  33         operation if the local power source is removed or unavailable
  34  - oc-delay-us : Delay time (in microseconds) for filtering the over-current
  35         sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
  36         an invalid value is given, the default is used instead.
  37  - compound-device : indicate the hub is part of a compound device
  38  - port-mapping-mode : enable port mapping mode
  39  - string-support : enable string descriptor support (required for manufacturer,
  40         product and serial string configuration)
  41  - non-removable-ports : Should specify the ports which have a non-removable
  42         device connected.
  43  - sp-disabled-ports : Specifies the ports which will be self-power disabled
  44  - bp-disabled-ports : Specifies the ports which will be bus-power disabled
  45  - power-on-time-ms : Specifies the time it takes from the time the host
  46         initiates the power-on sequence to a port until the port has adequate
  47         power. The value is given in ms in a 0 - 510 range (default is 100ms).
  48
  49 Examples:
  50         usb2512b@2c {
  51                 compatible = "microchip,usb2512b";
  52                 reg = <0x2c>;
  53                 reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
  54         };
  55
  56         usb2514b@2c {
  57                 compatible = "microchip,usb2514b";
  58                 reg = <0x2c>;
  59                 reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
  60                 vendor-id = /bits/ 16 <0x0000>;
  61                 product-id = /bits/ 16 <0x0000>;
  62                 string-support;
  63                 manufacturer = "Foo";
  64                 product = "Foo-Bar";
  65                 serial = "1234567890A";
  66         };