tree a6d9cd9a5647367506d268e94fd200acbbcd8232
parent cc49da249cf2f380d2fed5571fad65ce6494fc95
author Stephen Warren <swarren@nvidia.com> 1401398980 -0600
committer Tom Warren <twarren@nvidia.com> 1401992754 -0700

ARM: tegra: enable USB device mode and UMS on some boards

For each of Jetson TK1, Venice2, and Beaver:

- Enable the first USB controller in DT, and describe its configuration.

- Enable USB device/gadget support. This allows the user to type e.g.
  "ums 0 mmc 0" at the command-line to cause U-Boot to act a USB device
  implementing the USB Mass Storage protocol, and expose MMC device 0
  that way.

This allows a host PC to mount the Tegra device's MMC, partition it, and
install a filesystem on it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>