1. 55d98a1 tegra20: rename tegra2 -> tegra20 by Allen Martin · Fri Aug 31 08:30:00 2012 +0000[Renamed from arch/arm/include/asm/arch-tegra2/usb.h]
  2. 08d6ec2 tegra: usb: Add support for Tegra USB peripheral by Simon Glass · Mon Feb 27 10:52:49 2012 +0000