| Tegra SOC USB controllers | |
| The device node for a USB controller that is part of a Tegra | |
| SOC is as described in the document "Open Firmware Recommended | |
| Practice : Universal Serial Bus" with the following modifications | |
| and additions : | |
| Required properties : | |
| - compatible : Should be "nvidia,tegra20-ehci" for USB controllers | |
| used in host mode. | |
| - phy_type : Should be one of "ulpi" or "utmi". | |
| - nvidia,vbus-gpio : If present, specifies a gpio that needs to be | |
| activated for the bus to be powered. |