u-boot/arch/arm/dts/imx7d-sdb-qspi.dts

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 Freescale Semiconductor, Inc.
 * Copyright 2018 NXP
 */

#include "imx7d-sdb.dts"

/* disable epdc, conflict with qspi */
&epdc {
        status = "disabled";
};

&iomuxc {
	qspi1 {
		pinctrl_qspi1_1: qspi1grp_1 {
			fsl,pins = <
				MX7D_PAD_EPDC_DATA00__QSPI_A_DATA0 0x51
				MX7D_PAD_EPDC_DATA01__QSPI_A_DATA1 0x51
				MX7D_PAD_EPDC_DATA02__QSPI_A_DATA2 0x51
				MX7D_PAD_EPDC_DATA03__QSPI_A_DATA3 0x51
				MX7D_PAD_EPDC_DATA05__QSPI_A_SCLK 0x51
				MX7D_PAD_EPDC_DATA06__QSPI_A_SS0_B 0x51
			>;
		};
	};
};

&qspi1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_qspi1_1>;
	status = "okay";
	ddrsmp=<0>;

	flash0: mx25l51245g@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "macronix,mx25l51245g";
		spi-max-frequency = <29000000>;
		/* take off one dummy cycle */
		spi-nor,ddr-quad-read-dummy = <5>;
		reg = <0>;
	};
};