BONE-SPI0_0.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2022 BeagleBoard.org - https://beagleboard.org/
 *
 * https://docs.beagleboard.io/latest/boards/capes/cape-interface-spec.html#spi
 */

/dts-v1/;
/plugin/;

/*
 * Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
 */
&{/chosen} {
	overlays {
		BONE-SPI0_0.kernel = __TIMESTAMP__;
	};
};

&bone_spi_0 {
	/* tested with: sudo ./spidev_test -v --device /dev/spidev0.0 */
	pinctrl-names = "default";
	pinctrl-0 = <
		&P9_17_spi_pin /* spi6_cs0 */
		&P9_22_spi_pin /* spi6_clk */
		&P9_21_spi_pin /* spi6_d0 */
		&P9_18_spi_pin /* spi6_d1 */
	>;
	ti,spi-num-cs = <1>;
	ti,pindir-d0-out-d1-in;

	status = "okay";

	spidev@0 {
		symlink = "bone/spi/0.0";
		compatible = "rohm,dh2228fv";
		reg = <0>;	/* CE0 */
		#address-cells = <1>;
		#size-cells = <0>;
		spi-max-frequency = <125000000>;
	};
};