Documentation/devicetree/bindings/usb/cdns-usb3.txt

   1 Binding for the Cadence USBSS-DRD controller
   2
   3 Required properties:
   4  - reg: Physical base address and size of the controller's register areas.
   5          Controller has 3 different regions:
   6          - HOST registers area
   7          - DEVICE registers area
   8          - OTG/DRD registers area
   9  - reg-names - register memory area names:
  10         "xhci" - for HOST registers space
  11         "dev" - for DEVICE registers space
  12         "otg" - for OTG/DRD registers space
  13  - compatible: Should contain: "cdns,usb3"
  14  - interrupts: Interrupts used by cdns3 controller:
  15         "host" - interrupt used by XHCI driver.
  16         "peripheral" - interrupt used by device driver
  17         "otg" - interrupt used by DRD/OTG  part of driver
  18
  19 Optional properties:
  20  - maximum-speed : valid arguments are "super-speed", "high-speed" and
  21                    "full-speed"; refer to usb/generic.txt
  22  - dr_mode: Should be one of "host", "peripheral" or "otg".
  23  - phys: reference to the USB PHY
  24  - phy-names: from the *Generic PHY* bindings;
  25         Supported names are:
  26         - cdns3,usb2-phy
  27         - cdns3,usb3-phy
  28
  29  - cdns,on-chip-buff-size : size of memory intended as internal memory for endpoints
  30         buffers expressed in KB
  31
  32 Example:
  33         usb@f3000000 {
  34                 compatible = "cdns,usb3";
  35                 interrupts = <GIC_USB_IRQ 7 IRQ_TYPE_LEVEL_HIGH>,
  36                                 <GIC_USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>,
  37                                 <GIC_USB_IRQ  8 IRQ_TYPE_LEVEL_HIGH>;
  38                 interrupt-names = "host", "peripheral", "otg";
  39                 reg = <0xf3000000 0x10000>,     /* memory area for HOST registers */
  40                         <0xf3010000 0x10000>,   /* memory area for DEVICE registers */
  41                         <0xf3020000 0x10000>;   /* memory area for OTG/DRD registers */
  42                 reg-names = "xhci", "dev", "otg";
  43                 phys = <&usb2_phy>, <&usb3_phy>;
  44                 phy-names = "cdns3,usb2-phy", "cnds3,usb3-phy";
  45         };