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 : For Tegra20, must contain "nvidia,tegra20-ehci".
10   For Tegra30, must contain "nvidia,tegra30-ehci".  Otherwise, must contain
11   "nvidia,<chip>-ehci" plus at least one of the above, where <chip> is
12   tegra114, tegra124, tegra132, or tegra210.
13 - nvidia,phy : phandle of the PHY that the controller is connected to.
14 - clocks : Must contain one entry, for the module clock.
15   See ../clocks/clock-bindings.txt for details.
16 - resets : Must contain an entry for each entry in reset-names.
17   See ../reset/reset.txt for details.
18 - reset-names : Must include the following entries:
19   - usb
20
21Optional properties:
22 - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20
23   USB ports, which need reset twice due to hardware issues.
24