u-boot/arch/arm/dts/k3-am62a7-sk.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * AM62A SK: https://www.ti.com/lit/zip/sprr459
 *
 * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;

#include <dt-bindings/leds/common.h>
#include <dt-bindings/gpio/gpio.h>
#include "k3-am62a7.dtsi"

/ {
	compatible =  "ti,am62a7-sk", "ti,am62a7";
	model = "Texas Instruments AM62A7 SK";

	aliases {
		serial2 = &main_uart0;
		mmc1 = &sdhci1;
	};

	chosen {
		stdout-path = "serial2:115200n8";
	};

	memory@80000000 {
		device_type = "memory";
		/* 2G RAM */
		reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		secure_tfa_ddr: tfa@9e780000 {
			reg = <0x00 0x9e780000 0x00 0x80000>;
			alignment = <0x1000>;
			no-map;
		};

		secure_ddr: optee@9e800000 {
			reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
			alignment = <0x1000>;
			no-map;
		};

		wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
			compatible = "shared-dma-pool";
			reg = <0x00 0x9c900000 0x00 0x01e00000>;
			no-map;
		};
	};

	vmain_pd: regulator-0 {
		/* TPS25750 PD CONTROLLER OUTPUT */
		compatible = "regulator-fixed";
		regulator-name = "vmain_pd";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
		regulator-boot-on;
	};

	vcc_5v0: regulator-1 {
		/* Output of TPS63070 */
		compatible = "regulator-fixed";
		regulator-name = "vcc_5v0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		vin-supply = <&vmain_pd>;
		regulator-always-on;
		regulator-boot-on;
	};

	vcc_3v3_sys: regulator-2 {
		/* output of LM5141-Q1 */
		compatible = "regulator-fixed";
		regulator-name = "vcc_3v3_sys";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vmain_pd>;
		regulator-always-on;
		regulator-boot-on;
	};

	vdd_mmc1: regulator-3 {
		/* TPS22918DBVR */
		compatible = "regulator-fixed";
		regulator-name = "vdd_mmc1";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		enable-active-high;
		gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
	};

	leds {
		compatible = "gpio-leds";
		pinctrl-names = "default";
		pinctrl-0 = <&usr_led_pins_default>;

		led-0 {
			label = "am62a-sk:green:heartbeat";
			gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;
			linux,default-trigger = "heartbeat";
			function = LED_FUNCTION_HEARTBEAT;
			default-state = "off";
		};
	};
};

&main_pmx0 {
	main_uart0_pins_default: main-uart0-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */
			AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */
		>;
	};

	main_i2c0_pins_default: main-i2c0-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */
			AM62AX_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */
		>;
	};

	main_i2c1_pins_default: main-i2c1-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */
			AM62AX_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */
		>;
	};

	main_i2c2_pins_default: main-i2c2-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x0b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */
			AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
		>;
	};

	main_mmc1_pins_default: main-mmc1-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
			AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
			AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
			AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
			AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
			AM62AX_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */
			AM62AX_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */
		>;
	};

	usr_led_pins_default: usr-led-pins-default {
		pinctrl-single,pins = <
			AM62AX_IOPAD(0x244, PIN_OUTPUT, 7) /* (D18) MMC1_SDWP.GPIO1_49 */
		>;
	};
};

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

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

	exp1: gpio@22 {
		compatible = "ti,tca6424";
		reg = <0x22>;
		gpio-controller;
		#gpio-cells = <2>;

		gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST",
				   "BT_EN_SOC", "MMC1_SD_EN",
				   "VPP_EN", "EXP_PS_3V3_En",
				   "EXP_PS_5V0_En", "EXP_HAT_DETECT",
				   "GPIO_AUD_RSTn", "GPIO_eMMC_RSTn",
				   "UART1_FET_BUF_EN", "BT_UART_WAKE_SOC",
				   "GPIO_HDMI_RSTn", "CSI_GPIO0",
				   "CSI_GPIO1", "WLAN_ALERTn",
				   "HDMI_INTn", "TEST_GPIO2",
				   "MCASP1_FET_EN", "MCASP1_BUF_BT_EN",
				   "MCASP1_FET_SEL", "UART1_FET_SEL",
				   "PD_I2C_IRQ", "IO_EXP_TEST_LED";
	};
};

&sdhci1 {
	/* SD/MMC */
	status = "okay";
	vmmc-supply = <&vdd_mmc1>;
	pinctrl-names = "default";
	pinctrl-0 = <&main_mmc1_pins_default>;
	ti,driver-strength-ohm = <50>;
	disable-wp;
};

&main_gpio0 {
	status = "okay";
};

&main_gpio1 {
	status = "okay";
};

&main_gpio_intr {
	status = "okay";
};

&main_uart0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&main_uart0_pins_default>;
};