Hi, Am Sonntag, 26. April 2015, 17:41:39 schrieb Yunzhi Li: > rk3288-firefly board use the dwc2 usb otg controller as a host > controller and the device mode not used, so the dr_mode should be > "host" then the dwc2 usb otg controller will work at host only > mode > > Signed-off-by: Yunzhi Li <lyz@xxxxxxxxxxxxxx> Not sure I understand. Is this some sort of hardware limitation? Because when for example flashing a kernel via upgrade_tool it is working just fine as gadget. If it is a software choice, this should not be made in the devicetree, as the dt describes the hardware alone. Heiko > > --- > > arch/arm/boot/dts/rk3288-firefly.dtsi | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/boot/dts/rk3288-firefly.dtsi > b/arch/arm/boot/dts/rk3288-firefly.dtsi index e6f873a..a861776 100644 > --- a/arch/arm/boot/dts/rk3288-firefly.dtsi > +++ b/arch/arm/boot/dts/rk3288-firefly.dtsi > @@ -466,6 +466,7 @@ > }; > > &usb_otg { > + dr_modr = "host"; > status = "okay"; > }; -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html