diff options
Diffstat (limited to 'dts/Bindings/usb/nvidia,tegra20-ehci.txt')
| -rw-r--r-- | dts/Bindings/usb/nvidia,tegra20-ehci.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/dts/Bindings/usb/nvidia,tegra20-ehci.txt b/dts/Bindings/usb/nvidia,tegra20-ehci.txt new file mode 100644 index 0000000000..3dc9140e3d --- /dev/null +++ b/dts/Bindings/usb/nvidia,tegra20-ehci.txt @@ -0,0 +1,20 @@ +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 : Should be "nvidia,tegra20-ehci". + - 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. |