FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/usb/cdns-usb3.txt

     Binding for the Cadence USBSS-DRD controller
     
     Required properties:
      - reg: Physical base address and size of the controller's register areas.
              Controller has 3 different regions:
              - HOST registers area
              - DEVICE registers area
              - OTG/DRD registers area
      - reg-names - register memory area names:
            "xhci" - for HOST registers space
            "dev" - for DEVICE registers space
            "otg" - for OTG/DRD registers space
     - compatible: Should contain: "cdns,usb3"
     - interrupts: Interrupts used by cdns3 controller:
            "host" - interrupt used by XHCI driver.
            "peripheral" - interrupt used by device driver
            "otg" - interrupt used by DRD/OTG  part of driver
    
    Optional properties:
     - maximum-speed : valid arguments are "super-speed", "high-speed" and
                       "full-speed"; refer to usb/generic.txt
     - dr_mode: Should be one of "host", "peripheral" or "otg".
     - phys: reference to the USB PHY
     - phy-names: from the *Generic PHY* bindings;
            Supported names are:
            - cdns3,usb2-phy
            - cdns3,usb3-phy
    
     - cdns,on-chip-buff-size : size of memory intended as internal memory for endpoints
            buffers expressed in KB
    
    Example:
            usb@f3000000 {
                    compatible = "cdns,usb3";
                    interrupts = <GIC_USB_IRQ 7 IRQ_TYPE_LEVEL_HIGH>,
                                    <GIC_USB_IRQ  7 IRQ_TYPE_LEVEL_HIGH>,
                                    <GIC_USB_IRQ  8 IRQ_TYPE_LEVEL_HIGH>;
                    interrupt-names = "host", "peripheral", "otg";
                    reg = <0xf3000000 0x10000>,     /* memory area for HOST registers */
                            <0xf3010000 0x10000>,   /* memory area for DEVICE registers */
                            <0xf3020000 0x10000>;   /* memory area for OTG/DRD registers */
                    reg-names = "xhci", "dev", "otg";
                    phys = <&usb2_phy>, <&usb3_phy>;
                    phy-names = "cdns3,usb2-phy", "cnds3,usb3-phy";
            };

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