Documentation/devicetree/bindings/usb/ci-hdrc-imx.txt

   1 * Freescale i.MX ci13xxx usb controllers
   2
   3 Required properties:
   4 - compatible: Should be "fsl,imx27-usb"
   5 - reg: Should contain registers location and length
   6 - interrupts: Should contain controller interrupt
   7 - fsl,usbphy: phandle of usb phy that connects to the port
   8
   9 Recommended properies:
  10 - phy_type: the type of the phy connected to the core. Should be one
  11   of "utmi", "utmi_wide", "ulpi", "serial" or "hsic". Without this
  12   property the PORTSC register won't be touched
  13 - dr_mode: One of "host", "peripheral" or "otg". Defaults to "otg"
  14
  15 Optional properties:
  16 - fsl,usbmisc: phandler of non-core register device, with one argument
  17   that indicate usb controller index
  18 - vbus-supply: regulator for vbus
  19 - disable-over-current: disable over current detect
  20 - external-vbus-divider: enables off-chip resistor divider for Vbus
  21 - maximum-speed: limit the maximum connection speed to "full-speed".
  22 - tpl-support: TPL (Targeted Peripheral List) feature for targeted hosts
  23
  24 Examples:
  25 usb@02184000 { /* USB OTG */
  26         compatible = "fsl,imx6q-usb", "fsl,imx27-usb";
  27         reg = <0x02184000 0x200>;
  28         interrupts = <0 43 0x04>;
  29         fsl,usbphy = <&usbphy1>;
  30         fsl,usbmisc = <&usbmisc 0>;
  31         disable-over-current;
  32         external-vbus-divider;
  33         maximum-speed = "full-speed";
  34         tpl-support;
  35 };