boards/shields/esp_8266/boards/sam4e_xpro.overlay

/*
 * Copyright (c) 2020 Gerson Fernando Budke <nandojve@gmail.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

&pinctrl {
	usart1_esp_wifi: usart1_esp_wifi {
		group1 {
			pinmux = <PA21A_USART1_RXD>,
				 <PA22A_USART1_TXD>;
		};
	};
};

&usart1 {
	status = "okay";
	current-speed = <115200>;

	pinctrl-0 = <&usart1_esp_wifi>;
	pinctrl-names = "default";

	esp8266 {
		compatible = "espressif,esp-at";
		status = "okay";
	};
};