Hi, On 1/3/22 2:48 PM, Kavyasree Kotagiri wrote: > diff --git a/arch/arm/boot/dts/lan966x_pcb8291.dts b/arch/arm/boot/dts/lan966x_pcb8291.dts > new file mode 100644 > index 000000000000..cd0454a795e7 > --- /dev/null > +++ b/arch/arm/boot/dts/lan966x_pcb8291.dts > @@ -0,0 +1,55 @@ > +&flx3 { > + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>; > + status = "okay"; > + > + usart0: serial@200 { > + compatible = "atmel,at91sam9260-usart"; The flexcom usart mode should be defined in the dtsi file, so that you won't duplicate the definition in each dts that includes the dtsi file. Cheers, ta