boards/xtensa/yd_esp32/yd_esp32.dts

/*
 * SPDX-License-Identifier: Apache-2.0
 */
/dts-v1/;

#include <espressif/esp32/esp32_wroom_32ue_n16.dtsi>
#include <zephyr/dt-bindings/led/led.h>
#include "yd_esp32-pinctrl.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>

/ {
	model = "VCC-GND Studio YD-ESP32";
	compatible = "espressif,esp32";

	aliases {
		uart-0 = &uart0;
		i2c-0 = &i2c0;
		sw0 = &button0;
		watchdog0 = &wdt0;
		led-strip = &rgb_led;
	};

	buttons {
		compatible = "gpio-keys";
		button0: button_0 {
			gpios = <&gpio0 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			label = "BOOT Button";
			zephyr,code = <INPUT_KEY_0>;
		};
	};

	chosen {
		zephyr,sram = &sram0;
		zephyr,console = &uart0;
		zephyr,shell-uart = &uart0;
		zephyr,flash = &flash0;
		zephyr,code-partition = &slot0_partition;
	};
};

&pinctrl {
	spim2_default: spim2_default {
		group2 {
			pinmux = <SPIM2_MOSI_GPIO16>;
			output-low;
		};
	};
};

&cpu0 {
	clock-frequency = <ESP32_CLK_CPU_240M>;
	cpu-power-states = <&light_sleep &deep_sleep>;
};

&cpu1 {
	clock-frequency = <ESP32_CLK_CPU_240M>;
};

&uart0 {
	status = "okay";
	current-speed = <115200>;
	pinctrl-0 = <&uart0_default>;
	pinctrl-names = "default";
};

&uart1 {
	current-speed = <115200>;
	pinctrl-0 = <&uart1_default>;
	pinctrl-names = "default";
};

&uart2 {
	current-speed = <115200>;
	pinctrl-0 = <&uart2_default>;
	pinctrl-names = "default";
};

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&i2c0 {
	status = "okay";
	clock-frequency = <I2C_BITRATE_STANDARD>;
	sda-gpios = <&gpio0 21 GPIO_OPEN_DRAIN>;
	scl-gpios = <&gpio0 22 GPIO_OPEN_DRAIN>;
	pinctrl-0 = <&i2c0_default>;
	pinctrl-names = "default";
};

&spi2 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";
	pinctrl-0 = <&spim2_default>;
	pinctrl-names = "default";

	rgb_led: ws2812@0 {
		compatible = "worldsemi,ws2812-spi";

		/* SPI */
		reg = <0>; /* ignored, but necessary for SPI bindings */
		spi-max-frequency = <6400000>;

		/* XL-5050RGBC-WS2812B */
		chain-length = <1>;
		spi-one-frame = <0xfc>; /* 11111100: 0.937 us high and 0.313 us low */
		spi-zero-frame = <0xc0>; /* 11000000: 0.313 us high and 0.937 us low */
		color-mapping = <LED_COLOR_ID_GREEN
				 LED_COLOR_ID_RED
				 LED_COLOR_ID_BLUE>;
	};
};

&spi3 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";
	pinctrl-0 = <&spim3_default>;
	pinctrl-names = "default";
};

&timer0 {
	status = "disabled";
};

&timer1 {
	status = "disabled";
};

&timer2 {
	status = "disabled";
};

&timer3 {
	status = "disabled";
};

&trng0 {
	status = "okay";
};

&flash0 {
	status = "okay";
	partitions {
		compatible = "fixed-partitions";
		#address-cells = <1>;
		#size-cells = <1>;

		/* Reserve 60kB for the bootloader */
		boot_partition: partition@1000 {
			label = "mcuboot";
			reg = <0x00001000 0x0000F000>;
			read-only;
		};

		/* Reserve 1024kB for the application in slot 0 */
		slot0_partition: partition@10000 {
			label = "image-0";
			reg = <0x00010000 0x00100000>;
		};

		/* Reserve 1024kB for the application in slot 1 */
		slot1_partition: partition@110000 {
			label = "image-1";
			reg = <0x00110000 0x00100000>;
		};

		/* Reserve 256kB for the scratch partition */
		scratch_partition: partition@210000 {
			   label = "image-scratch";
			   reg = <0x00210000 0x00040000>;
		};

		storage_partition: partition@250000 {
			label = "storage";
			reg = <0x00250000 0x00006000>;
		};
	};
};