1*c66ec88fSEmmanuel VadotTegra SOC USB controllers 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotThe device node for a USB controller that is part of a Tegra 4*c66ec88fSEmmanuel VadotSOC is as described in the document "Open Firmware Recommended 5*c66ec88fSEmmanuel VadotPractice : Universal Serial Bus" with the following modifications 6*c66ec88fSEmmanuel Vadotand additions : 7*c66ec88fSEmmanuel Vadot 8*c66ec88fSEmmanuel VadotRequired properties : 9*c66ec88fSEmmanuel Vadot - compatible : For Tegra20, must contain "nvidia,tegra20-ehci". 10*c66ec88fSEmmanuel Vadot For Tegra30, must contain "nvidia,tegra30-ehci". Otherwise, must contain 11*c66ec88fSEmmanuel Vadot "nvidia,<chip>-ehci" plus at least one of the above, where <chip> is 12*c66ec88fSEmmanuel Vadot tegra114, tegra124, tegra132, or tegra210. 13*c66ec88fSEmmanuel Vadot - nvidia,phy : phandle of the PHY that the controller is connected to. 14*c66ec88fSEmmanuel Vadot - clocks : Must contain one entry, for the module clock. 15*c66ec88fSEmmanuel Vadot See ../clocks/clock-bindings.txt for details. 16*c66ec88fSEmmanuel Vadot - resets : Must contain an entry for each entry in reset-names. 17*c66ec88fSEmmanuel Vadot See ../reset/reset.txt for details. 18*c66ec88fSEmmanuel Vadot - reset-names : Must include the following entries: 19*c66ec88fSEmmanuel Vadot - usb 20*c66ec88fSEmmanuel Vadot 21*c66ec88fSEmmanuel VadotOptional properties: 22*c66ec88fSEmmanuel Vadot - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20 23*c66ec88fSEmmanuel Vadot USB ports, which need reset twice due to hardware issues. 24