Tegra SOC USB controllers
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The device node for a USB controller that is part of a Tegra
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SOC is as described in the document "Open Firmware Recommended
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Practice : Universal Serial Bus" with the following modifications
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and additions :
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Required properties :
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- compatible : For Tegra20, must contain "nvidia,tegra20-ehci".
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For Tegra30, must contain "nvidia,tegra30-ehci". Otherwise, must contain
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"nvidia,<chip>-ehci" plus at least one of the above, where <chip> is
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tegra114, tegra124, tegra132, or tegra210.
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- nvidia,phy : phandle of the PHY that the controller is connected to.
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- clocks : Must contain one entry, for the module clock.
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See ../clocks/clock-bindings.txt for details.
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- resets : Must contain an entry for each entry in reset-names.
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See ../reset/reset.txt for details.
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- reset-names : Must include the following entries:
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- usb
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Optional properties:
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- nvidia,needs-double-reset : boolean is to be set for some of the Tegra20
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USB ports, which need reset twice due to hardware issues.
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