| 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"; |
| }; |