diff options
Diffstat (limited to 'Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt index e9b005dc7625..34c952883276 100644 --- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt +++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt | |||
| @@ -11,6 +11,7 @@ Required properties : | |||
| 11 | - phy_type : Should be one of "ulpi" or "utmi". | 11 | - phy_type : Should be one of "ulpi" or "utmi". |
| 12 | - nvidia,vbus-gpio : If present, specifies a gpio that needs to be | 12 | - nvidia,vbus-gpio : If present, specifies a gpio that needs to be |
| 13 | activated for the bus to be powered. | 13 | activated for the bus to be powered. |
| 14 | - nvidia,phy : phandle of the PHY instance, the controller is connected to. | ||
| 14 | 15 | ||
| 15 | Required properties for phy_type == ulpi: | 16 | Required properties for phy_type == ulpi: |
| 16 | - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. | 17 | - nvidia,phy-reset-gpio : The GPIO used to reset the PHY. |
| @@ -27,3 +28,5 @@ Optional properties: | |||
| 27 | registers are accessed through the APB_MISC base address instead of | 28 | registers are accessed through the APB_MISC base address instead of |
| 28 | the USB controller. Since this is a legacy issue it probably does not | 29 | the USB controller. Since this is a legacy issue it probably does not |
| 29 | warrant a compatible string of its own. | 30 | warrant a compatible string of its own. |
| 31 | - nvidia,needs-double-reset : boolean is to be set for some of the Tegra2 | ||
| 32 | USB ports, which need reset twice due to hardware issues. | ||