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| author | Olof Johansson <olof@lixom.net> | 2011-11-04 09:12:39 +0000 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2011-12-07 20:47:47 -0800 |
| commit | c27317c0ed114152d02b2ed40056f232e5732b9d (patch) | |
| tree | 8f56d4f70187e4314454c4c9fe9132f581fd2df4 /Documentation/devicetree | |
| parent | 317d5330aea392c032a5f8c87df74444fd514910 (diff) | |
| download | lwn-c27317c0ed114152d02b2ed40056f232e5732b9d.tar.gz lwn-c27317c0ed114152d02b2ed40056f232e5732b9d.zip | |
arm/dt: add basic usb nodes to tegra device trees
For now they are a minimal binding. It needs to be amended with
vendor-specific settings for phy setup and link tuning, etc.
v2: Added bindings specification and phy_type properties
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/tegra-usb.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/tegra-usb.txt b/Documentation/devicetree/bindings/usb/tegra-usb.txt new file mode 100644 index 000000000000..035d63d5646d --- /dev/null +++ b/Documentation/devicetree/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. |