tests/drivers/spi/spi_loopback/boards/arduino_zero.overlay

/*
 * Copyright (c) 2022 Kumar Gala <galak@kernel.org>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

&sercom4 {
	cs-gpios = <&porta 3 GPIO_ACTIVE_LOW>;
	slow@0 {
		compatible = "test-spi-loopback-slow";
		reg = <0>;
		spi-max-frequency = <500000>;
	};
	fast@0 {
		compatible = "test-spi-loopback-fast";
		reg = <0>;
		spi-max-frequency = <16000000>;
	};
};