| 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 : For Tegra20, must contain "nvidia,tegra20-ehci". | |
| For Tegra30, must contain "nvidia,tegra30-ehci". Otherwise, must contain | |
| "nvidia,<chip>-ehci" plus at least one of the above, where <chip> is | |
| tegra114, tegra124, tegra132, or tegra210. | |
| - nvidia,phy : phandle of the PHY that the controller is connected to. | |
| - clocks : Must contain one entry, for the module clock. | |
| See ../clocks/clock-bindings.txt for details. | |
| - resets : Must contain an entry for each entry in reset-names. | |
| See ../reset/reset.txt for details. | |
| - reset-names : Must include the following entries: | |
| - usb | |
| 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. |