exynos5: Implement support for USB 3.0 DRD PHYs/controllers

This patch adds support for the DesignWare3 USB 3.0 DRD controller and
PHY to the Exynos5250 and Exynos5420 CPUs. It also adds code to the
Google Snow and Pit boards to turn these controllers on where

Change-Id: Idcca627363a69f1d65402e1acb9a62b439f077ff
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/169452
Reviewed-by: Stefan Reinauer <reinauer@google.com>
(cherry picked from commit e9809ae12ef8b8bd6cd61d3f604cb9e4718cf7eb)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6642
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
10 files changed