From b257464b1c7522d04650d8e2ab52ee7c1cafa7e4 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 27 Feb 2012 10:52:41 +0000 Subject: [PATCH] fdt: Add tegra-usb bindings file from linux This file is taken from the Linux mailing list. Signed-off-by: Simon Glass Signed-off-by: Tom Warren --- doc/device-tree-bindings/usb/tegra-usb.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 doc/device-tree-bindings/usb/tegra-usb.txt diff --git a/doc/device-tree-bindings/usb/tegra-usb.txt b/doc/device-tree-bindings/usb/tegra-usb.txt new file mode 100644 index 0000000..035d63d --- /dev/null +++ b/doc/device-tree-bindings/usb/tegra-usb.txt @@ -0,0 +1,13 @@ +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" for USB controllers + used in host mode. + - phy_type : Should be one of "ulpi" or "utmi". + - nvidia,vbus-gpio : If present, specifies a gpio that needs to be + activated for the bus to be powered. -- 2.7.4