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". - nvidia,phy : phandle of the PHY that the controller is connected to. - clocks : Contains a single entry which defines the USB controller's clock. Optional properties: - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20 USB ports, which need reset twice due to hardware issues.
