On Wed, May 14, 2025 at 10:09:02PM GMT, Han Gao wrote: > +&uart0 { > + pinctrl-0 = <&uart0_cfg>; > + pinctrl-names = "default"; > + status = "okay"; > +}; > + > +/ { Why do you have two root nodes in a file? That's not the expected syntax. Really odd/unusal. Best regards, Krzysztof