1Tegra SOC USB controllers 2 3The device node for a USB controller that is part of a Tegra 4SOC is as described in the document "Open Firmware Recommended 5Practice : Universal Serial Bus" with the following modifications 6and additions : 7 8Required properties : 9 - compatible : Should be "nvidia,tegra20-ehci". 10 - nvidia,phy : phandle of the PHY that the controller is connected to. 11 - clocks : Must contain one entry, for the module clock. 12 See ../clocks/clock-bindings.txt for details. 13 14Optional properties: 15 - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20 16 USB ports, which need reset twice due to hardware issues. 17