1Freescale SOC USB controllers 2 3The device node for a USB controller that is part of a Freescale 4SOC is as described in the document "Open Firmware Recommended 5Practice : Universal Serial Bus" with the following modifications 6and additions : 7 8Required properties : 9 - compatible : Should be "fsl-usb2-mph" for multi port host USB 10 controllers, or "fsl-usb2-dr" for dual role USB controllers 11 or "fsl,mpc5121-usb2-dr" for dual role USB controllers of MPC5121. 12 Wherever applicable, the IP version of the USB controller should 13 also be mentioned (for eg. fsl-usb2-dr-v2.2 for bsc9132). 14 - phy_type : For multi port host USB controllers, should be one of 15 "ulpi", or "serial". For dual role USB controllers, should be 16 one of "ulpi", "utmi", "utmi_wide", or "serial". 17 - reg : Offset and length of the register set for the device 18 - port0 : boolean; if defined, indicates port0 is connected for 19 fsl-usb2-mph compatible controllers. Either this property or 20 "port1" (or both) must be defined for "fsl-usb2-mph" compatible 21 controllers. 22 - port1 : boolean; if defined, indicates port1 is connected for 23 fsl-usb2-mph compatible controllers. Either this property or 24 "port0" (or both) must be defined for "fsl-usb2-mph" compatible 25 controllers. 26 - dr_mode : indicates the working mode for "fsl-usb2-dr" compatible 27 controllers. Can be "host", "peripheral", or "otg". Default to 28 "host" if not defined for backward compatibility. 29 30Recommended properties : 31 - interrupts : <a b> where a is the interrupt number and b is a 32 field that represents an encoding of the sense and level 33 information for the interrupt. This should be encoded based on 34 the information in section 2) depending on the type of interrupt 35 controller you have. 36 37Optional properties : 38 - fsl,invert-drvvbus : boolean; for MPC5121 USB0 only. Indicates the 39 port power polarity of internal PHY signal DRVVBUS is inverted. 40 - fsl,invert-pwr-fault : boolean; for MPC5121 USB0 only. Indicates 41 the PWR_FAULT signal polarity is inverted. 42 43Example multi port host USB controller device node : 44 usb@22000 { 45 compatible = "fsl-usb2-mph"; 46 reg = <22000 1000>; 47 #address-cells = <1>; 48 #size-cells = <0>; 49 interrupt-parent = <700>; 50 interrupts = <27 1>; 51 phy_type = "ulpi"; 52 port0; 53 port1; 54 }; 55 56Example dual role USB controller device node : 57 usb@23000 { 58 compatible = "fsl-usb2-dr"; 59 reg = <23000 1000>; 60 #address-cells = <1>; 61 #size-cells = <0>; 62 interrupt-parent = <700>; 63 interrupts = <26 1>; 64 dr_mode = "otg"; 65 phy = "ulpi"; 66 }; 67 68Example dual role USB controller device node for MPC5121ADS: 69 70 usb@4000 { 71 compatible = "fsl,mpc5121-usb2-dr"; 72 reg = <0x4000 0x1000>; 73 #address-cells = <1>; 74 #size-cells = <0>; 75 interrupt-parent = < &ipic >; 76 interrupts = <44 0x8>; 77 dr_mode = "otg"; 78 phy_type = "utmi_wide"; 79 fsl,invert-drvvbus; 80 fsl,invert-pwr-fault; 81 }; 82