samples/bluetooth/hci_uart/boards/nrf51dongle_nrf51422.overlay - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /* SPDX-License-Identifier: Apache-2.0 */

 &uart0 {
 	compatible = "nordic,nrf-uart";
 	current-speed = <1000000>;
 	status = "okay";
 	hw-flow-control;
 };
	/* SPDX-License-Identifier: Apache-2.0 */

	&uart0 {
	compatible = "nordic,nrf-uart";
	current-speed = <1000000>;
	status = "okay";
	hw-flow-control;
	};