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

/*
 * Copyright (c) 2022 TOKITA Hiroshi <tokita.hiroshi@fujitsu.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <zephyr/dt-bindings/dma/rpi_pico_dma.h>

&dma {
        status = "okay";
};

&spi0 {
	cs-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;

        dmas = <&dma 0 RPI_PICO_DMA_SLOT_SPI0_TX 0>, <&dma 1 RPI_PICO_DMA_SLOT_SPI0_RX 0>;
        dma-names = "tx", "rx";

	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>;
	};
};