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

&pinctrl {
	sercom3_loopback: sercom3_loopback {
		group1 {
			pinmux = <PA16D_SERCOM3_PAD0>;
		};
	};
};

&dmac {
	status = "okay";
};

&sercom0 {
	/* Configure DMA channels for async operation */
	dmas = <&dmac 0 1>, <&dmac 1 2>;
	dma-names = "rx", "tx";
};

&sercom3 {
	status = "okay";
	compatible = "atmel,sam0-uart";
	current-speed = <115200>;

	/* Internally loop-back TX and RX on PAD0 */
	rxpo = <0>;
	txpo = <0>;

	/* PAD0 must be configured to allow working loop-back */
	pinctrl-0 = <&sercom3_loopback>;
	pinctrl-names = "default";

	/* Configure DMA channels for async operation */
	dmas = <&dmac 10 7>, <&dmac 11 8>;
	dma-names = "rx", "tx";
};