linux-zen-server/arch/arm64/boot/dts/ti/k3-am69-sk.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2022-2023 Texas Instruments Incorporated - https://www.ti.com/
 *
 * Design Files: https://www.ti.com/lit/zip/SPRR466
 * TRM: https://www.ti.com/lit/zip/spruj52
 */

/dts-v1/;

#include <dt-bindings/net/ti-dp83867.h>
#include <dt-bindings/gpio/gpio.h>
#include "k3-j784s4.dtsi"

/ {
	compatible = "ti,am69-sk", "ti,j784s4";
	model = "Texas Instruments AM69 SK";

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

	aliases {
		serial2 = &main_uart8;
		mmc1 = &main_sdhci1;
		i2c0 = &main_i2c0;
	};

	memory@80000000 {
		device_type = "memory";
		/* 32G RAM */
		reg = <0x00 0x80000000 0x00 0x80000000>,
		      <0x08 0x80000000 0x07 0x80000000>;
	};

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

		secure_ddr: optee@9e800000 {
			reg = <0x00 0x9e800000 0x00 0x01800000>;
			no-map;
		};
	};

	vusb_main: regulator-vusb-main5v0 {
		/* USB MAIN INPUT 5V DC */
		compatible = "regulator-fixed";
		regulator-name = "vusb-main5v0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
		regulator-boot-on;
	};

	vsys_5v0: regulator-vsys5v0 {
		/* Output of LM61460 */
		compatible = "regulator-fixed";
		regulator-name = "vsys_5v0";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		vin-supply = <&vusb_main>;
		regulator-always-on;
		regulator-boot-on;
	};

	vsys_3v3: regulator-vsys3v3 {
		/* Output of LM5143 */
		compatible = "regulator-fixed";
		regulator-name = "vsys_3v3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vusb_main>;
		regulator-always-on;
		regulator-boot-on;
	};

	vdd_mmc1: regulator-sd {
		/* Output of TPS22918 */
		compatible = "regulator-fixed";
		regulator-name = "vdd_mmc1";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		enable-active-high;
		vin-supply = <&vsys_3v3>;
		gpio = <&exp1 2 GPIO_ACTIVE_HIGH>;
	};

	vdd_sd_dv: regulator-tlv71033 {
		/* Output of TLV71033 */
		compatible = "regulator-gpio";
		regulator-name = "tlv71033";
		pinctrl-names = "default";
		pinctrl-0 = <&vdd_sd_dv_pins_default>;
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		vin-supply = <&vsys_5v0>;
		gpios = <&main_gpio0 49 GPIO_ACTIVE_HIGH>;
		states = <1800000 0x0>,
			 <3300000 0x1>;
	};
};

&main_pmx0 {
	main_uart8_pins_default: main-uart8-pins-default {
		pinctrl-single,pins = <
			J784S4_IOPAD(0x0d0, PIN_INPUT, 11) /* (AP38) SPI0_CS1.UART8_RXD */
			J784S4_IOPAD(0x0d4, PIN_OUTPUT, 11) /* (AN38) SPI0_CLK.UART8_TXD */
		>;
	};

	main_i2c0_pins_default: main-i2c0-pins-default {
		pinctrl-single,pins = <
			J784S4_IOPAD(0x0e0, PIN_INPUT_PULLUP, 0) /* (AN36) I2C0_SCL */
			J784S4_IOPAD(0x0e4, PIN_INPUT_PULLUP, 0) /* (AP37) I2C0_SDA */
		>;
	};

	main_mmc1_pins_default: main-mmc1-pins-default {
		pinctrl-single,pins = <
			J784S4_IOPAD(0x104, PIN_INPUT, 0) /* (AB38) MMC1_CLK */
			J784S4_IOPAD(0x108, PIN_INPUT, 0) /* (AB36) MMC1_CMD */
			J784S4_IOPAD(0x100, PIN_INPUT, 0) /* (No Pin) MMC1_CLKLB */
			J784S4_IOPAD(0x0fc, PIN_INPUT, 0) /* (AA33) MMC1_DAT0 */
			J784S4_IOPAD(0x0f8, PIN_INPUT, 0) /* (AB34) MMC1_DAT1 */
			J784S4_IOPAD(0x0f4, PIN_INPUT, 0) /* (AA32) MMC1_DAT2 */
			J784S4_IOPAD(0x0f0, PIN_INPUT, 0) /* (AC38) MMC1_DAT3 */
			J784S4_IOPAD(0x0e8, PIN_INPUT, 8) /* (AR38) TIMER_IO0.MMC1_SDCD */
		>;
	};

	vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
		pinctrl-single,pins = <
			J784S4_IOPAD(0x0C4, PIN_INPUT, 7) /* (AD36) ECAP0_IN_APWM_OUT.GPIO0_49 */
		>;
	};
};

&main_uart8 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&main_uart8_pins_default>;
};

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

	exp1: gpio@21 {
		compatible = "ti,tca6416";
		reg = <0x21>;
		gpio-controller;
		#gpio-cells = <2>;
		gpio-line-names	= "BOARDID_EEPROM_WP", "CAN_STB", "GPIO_uSD_PWR_EN",
				"IO_EXP_MCU_RGMII_RST#", "IO_EXP_PCIe0_4L_PERST#",
				"IO_EXP_PCIe1_M.2_RTSz", "IO_EXP_PCIe3_M.2_RTSz",
				"PM_INA_BUS_EN", "ENET1_EXP_PWRDN", "EXP1_ENET_RSTz",
				"ENET1_I2CMUX_SEL", "PCIe0_CLKREQ#", "PCIe1_M.2_CLKREQ#",
				"PCIe3_M2_CLKREQ#", "PCIe0_PRSNT2#_1", "PCIe0_PRSNT2#_2";
	};
};

&main_sdhci1 {
	/* SD card */
	status = "okay";
	pinctrl-0 = <&main_mmc1_pins_default>;
	pinctrl-names = "default";
	disable-wp;
	vmmc-supply = <&vdd_mmc1>;
	vqmmc-supply = <&vdd_sd_dv>;
};

&main_gpio0 {
	status = "okay";
};