NVIDIA Tegra HCD support

modulename: ehci-tegra.ko

and/or

phy-tegra-usb.ko

configname: CONFIG_USB_EHCI_TEGRA

Linux Kernel Configuration
└─>Device Drivers
└─>USB support
└─>NVIDIA Tegra HCD support
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
This driver enables support for the internal USB Host Controllers
found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.

source code:
drivers/usb/host/ehci-tegra.c