CONFIG_USB_EHCI_FSL (not configurable)

modulename: fsl-mph-dr-of.ko

and/or

ehci-fsl.ko

configname: CONFIG_USB_EHCI_FSL

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>USB_EHCI_FSL
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Variation of ARC USB block used in some Freescale chips.