Add the port number and vbus property for ohci port, or else if bootloader won't configure the vbus pin, the 5v supply is not power on, so can not work with usb devices. Signed-off-by: Bo Shen <voice.shen@xxxxxxxxx> --- arch/arm/boot/dts/at91sam9n12ek.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts index 83d7237..13bb24e 100644 --- a/arch/arm/boot/dts/at91sam9n12ek.dts +++ b/arch/arm/boot/dts/at91sam9n12ek.dts @@ -136,6 +136,8 @@ }; usb0: ohci@00500000 { + num-ports = <1>; + atmel,vbus-gpio = <&pioB 7 GPIO_ACTIVE_LOW>; status = "okay"; }; }; -- 1.8.5.2 -- 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