u-boot-brain/arch/arm/dts/k3-am654-base-board.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
 */

/dts-v1/;

#include "k3-am654.dtsi"
#include <dt-bindings/pinctrl/k3.h>

/ {
	compatible =  "ti,am654-evm", "ti,am654";
	model = "Texas Instruments AM654 Base Board";

	chosen {
		stdout-path = "serial2:115200n8";
		bootargs = "earlycon=ns16550a,mmio32,0x02800000";
	};

	aliases {
		remoteproc0 = &mcu_r5fss0_core0;
		remoteproc1 = &mcu_r5fss0_core1;
	};

	memory@80000000 {
		device_type = "memory";
		/* 4G RAM */
		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
		      <0x00000008 0x80000000 0x00000000 0x80000000>;
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;
		secure_ddr: secure_ddr@9e800000 {
			reg = <0 0x9e800000 0 0x01800000>; /* for OP-TEE */
			alignment = <0x1000>;
			no-map;
		};
	};
};

&main_pmx0 {
	main_mmc0_pins_default: main_mmc0_pins_default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x01a8, PIN_INPUT_PULLDOWN, 0)	/* (B25) MMC0_CLK */
			AM65X_IOPAD(0x01aC, PIN_INPUT_PULLUP, 0)	/* (B27) MMC0_CMD */
			AM65X_IOPAD(0x01a4, PIN_INPUT_PULLUP, 0)	/* (A26) MMC0_DAT0 */
			AM65X_IOPAD(0x01a0, PIN_INPUT_PULLUP, 0)	/* (E25) MMC0_DAT1 */
			AM65X_IOPAD(0x019c, PIN_INPUT_PULLUP, 0)	/* (C26) MMC0_DAT2 */
			AM65X_IOPAD(0x0198, PIN_INPUT_PULLUP, 0)	/* (A25) MMC0_DAT3 */
			AM65X_IOPAD(0x0194, PIN_INPUT_PULLUP, 0)	/* (E24) MMC0_DAT4 */
			AM65X_IOPAD(0x0190, PIN_INPUT_PULLUP, 0)	/* (A24) MMC0_DAT5 */
			AM65X_IOPAD(0x018c, PIN_INPUT_PULLUP, 0)	/* (B26) MMC0_DAT6 */
			AM65X_IOPAD(0x0188, PIN_INPUT_PULLUP, 0)	/* (D25) MMC0_DAT7 */
			AM65X_IOPAD(0x01b4, PIN_INPUT_PULLUP, 0)	/* (A23) MMC0_SDCD */
			AM65X_IOPAD(0x01b0, PIN_INPUT, 0)		/* (C25) MMC0_DS */
		>;
	};

	main_mmc1_pins_default: main_mmc1_pins_default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x02d4, PIN_INPUT_PULLDOWN, 0)	/* (C27) MMC1_CLK */
			AM65X_IOPAD(0x02d8, PIN_INPUT_PULLUP, 0)	/* (C28) MMC1_CMD */
			AM65X_IOPAD(0x02d0, PIN_INPUT_PULLUP, 0)	/* (D28) MMC1_DAT0 */
			AM65X_IOPAD(0x02cc, PIN_INPUT_PULLUP, 0)	/* (E27) MMC1_DAT1 */
			AM65X_IOPAD(0x02c8, PIN_INPUT_PULLUP, 0)	/* (D26) MMC1_DAT2 */
			AM65X_IOPAD(0x02c4, PIN_INPUT_PULLUP, 0)	/* (D27) MMC1_DAT3 */
			AM65X_IOPAD(0x02dc, PIN_INPUT_PULLUP, 0)	/* (B24) MMC1_SDCD */
			AM65X_IOPAD(0x02e0, PIN_INPUT, 0)		/* (C24) MMC1_SDWP */
		>;
	};

	usb1_pins_default: usb1_pins_default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x02c0, PIN_OUTPUT, 0) /* (AC8) USB1_DRVVBUS */
		>;
	};

	main_i2c2_pins_default: main-i2c2-pins-default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x0074, PIN_INPUT, 5) /* (T27) GPMC0_CSn3.I2C2_SCL */
			AM65X_IOPAD(0x0070, PIN_INPUT, 5) /* (R25) GPMC0_CSn2.I2C2_SDA */
		>;
	};
};

&main_pmx1 {
	main_i2c0_pins_default: main-i2c0-pins-default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x0000, PIN_INPUT, 0) /* (D20) I2C0_SCL */
			AM65X_IOPAD(0x0004, PIN_INPUT, 0) /* (C21) I2C0_SDA */
		>;
	};

	main_i2c1_pins_default: main-i2c1-pins-default {
		pinctrl-single,pins = <
			AM65X_IOPAD(0x0008, PIN_INPUT, 0) /* (B21) I2C1_SCL */
			AM65X_IOPAD(0x000c, PIN_INPUT, 0) /* (E21) I2C1_SDA */
		>;
	};
};

&wkup_pmx0 {
	wkup_i2c0_pins_default: wkup-i2c0-pins-default {
		pinctrl-single,pins = <
			AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */
			AM65X_WKUP_IOPAD(0x00e4, PIN_INPUT, 0) /* (AD6) WKUP_I2C0_SDA */
		>;
	};

	mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins_default {
		pinctrl-single,pins = <
			AM65X_WKUP_IOPAD(0x0000, PIN_OUTPUT, 0) /* (V1) MCU_OSPI0_CLK */
			AM65X_WKUP_IOPAD(0x0008, PIN_INPUT, 0)	 /* (U2) MCU_OSPI0_DQS */
			AM65X_WKUP_IOPAD(0x000c, PIN_INPUT, 0)  /* (U4) MCU_OSPI0_D0 */
			AM65X_WKUP_IOPAD(0x0010, PIN_INPUT, 0)  /* (U5) MCU_OSPI0_D1 */
			AM65X_WKUP_IOPAD(0x0014, PIN_INPUT, 0)  /* (T2) MCU_OSPI0_D2 */
			AM65X_WKUP_IOPAD(0x0018, PIN_INPUT, 0)  /* (T3) MCU_OSPI0_D3 */
			AM65X_WKUP_IOPAD(0x001c, PIN_INPUT, 0)  /* (T4) MCU_OSPI0_D4 */
			AM65X_WKUP_IOPAD(0x0020, PIN_INPUT, 0)  /* (T5) MCU_OSPI0_D5 */
			AM65X_WKUP_IOPAD(0x0024, PIN_INPUT, 0)  /* (R2) MCU_OSPI0_D6 */
			AM65X_WKUP_IOPAD(0x0028, PIN_INPUT, 0)  /* (R3) MCU_OSPI0_D7 */
			AM65X_WKUP_IOPAD(0x002c, PIN_OUTPUT, 0) /* (R4) MCU_OSPI0_CSn0 */
		>;
	};
};

&sdhci0 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_mmc0_pins_default>;
	bus-width = <8>;
	non-removable;
	ti,driver-strength-ohm = <50>;
};

/*
 * Because of erratas i2025 and i2026 for silicon revision 1.0, the
 * SD card interface might fail. Boards with sr1.0 are recommended to
 * disable sdhci1
 */
&sdhci1 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_mmc1_pins_default>;
	ti,driver-strength-ohm = <50>;
	disable-wp;
};

&wkup_i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&wkup_i2c0_pins_default>;
	clock-frequency = <400000>;

	tca9554: gpio@38 {
		compatible = "nxp,pca9554";
		reg = <0x38>;
		gpio-controller;
		#gpio-cells = <2>;
	};
};

&main_i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_i2c0_pins_default>;
	clock-frequency = <400000>;

	pca9555: gpio@21 {
		compatible = "nxp,pca9555";
		reg = <0x21>;
		gpio-controller;
		#gpio-cells = <2>;
	};
};

&main_i2c1 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_i2c1_pins_default>;
	clock-frequency = <400000>;
};

&main_i2c2 {
	pinctrl-names = "default";
	pinctrl-0 = <&main_i2c2_pins_default>;
	clock-frequency = <400000>;
};

&dwc3_1 {
	status = "okay";
};

&usb1_phy {
	status = "okay";
};

&usb1 {
	pinctrl-names = "default";
	pinctrl-0 = <&usb1_pins_default>;
	dr_mode = "otg";
};

&dwc3_0 {
	status = "disabled";
};

&usb0_phy {
	status = "disabled";
};

&ospi0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;

	flash@0{
		compatible = "jedec,spi-nor";
		reg = <0x0>;
		spi-tx-bus-width = <1>;
		spi-rx-bus-width = <8>;
		spi-max-frequency = <50000000>;
		cdns,tshsl-ns = <60>;
		cdns,tsd2d-ns = <60>;
		cdns,tchsh-ns = <60>;
		cdns,tslch-ns = <60>;
		cdns,read-delay = <0>;
		#address-cells = <1>;
		#size-cells = <1>;
	};
};