diff options
| -rw-r--r-- | Documentation/devicetree/bindings/usb/tegra-usb.txt | 13 | ||||
| -rw-r--r-- | arch/arm/boot/dts/tegra-seaboard.dts | 1 | ||||
| -rw-r--r-- | arch/arm/boot/dts/tegra20.dtsi | 1 |
3 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/tegra-usb.txt b/Documentation/devicetree/bindings/usb/tegra-usb.txt index 035d63d5646d..007005ddbe12 100644 --- a/Documentation/devicetree/bindings/usb/tegra-usb.txt +++ b/Documentation/devicetree/bindings/usb/tegra-usb.txt @@ -11,3 +11,16 @@ Required properties : - 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. + +Optional properties: + - dr_mode : dual role mode. Indicates the working mode for + nvidia,tegra20-ehci compatible controllers. Can be "host", "peripheral", + or "otg". Default to "host" if not defined for backward compatibility. + host means this is a host controller + peripheral means it is device controller + otg means it can operate as either ("on the go") + - nvidia,has-legacy-mode : boolean indicates whether this controller can + operate in legacy mode (as APX 2500 / 2600). In legacy mode some + registers are accessed through the APB_MISC base address instead of + the USB controller. Since this is a legacy issue it probably does not + warrant a compatible string of its own. diff --git a/arch/arm/boot/dts/tegra-seaboard.dts b/arch/arm/boot/dts/tegra-seaboard.dts index 876d5c92ce36..dbf1c5a171c2 100644 --- a/arch/arm/boot/dts/tegra-seaboard.dts +++ b/arch/arm/boot/dts/tegra-seaboard.dts @@ -112,6 +112,7 @@ usb@c5000000 { nvidia,vbus-gpio = <&gpio 24 0>; /* PD0 */ + dr_mode = "otg"; }; gpio-keys { diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index d2bc7e7ad06d..f29978ecaebe 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -188,6 +188,7 @@ reg = <0xc5000000 0x4000>; interrupts = < 0 20 0x04 >; phy_type = "utmi"; + nvidia,has-legacy-mode; }; usb@c5004000 { |