OpenRTX/platform/targets/ttwrplus/ttwrplus.dts

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

#include <espressif/esp32s3/esp32s3_wroom_n16r8.dtsi>
#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
#include <dt-bindings/pinctrl/esp32s3-pinctrl.h>
#include <dt-bindings/input/input-event-codes.h>
#include <zephyr/dt-bindings/pinctrl/esp32s3-gpio-sigmap.h>
#include <zephyr/dt-bindings/led/led.h>

/ {
	model = "ttwrplus";
	compatible = "espressif,esp32s3";

	aliases {
		i2c-0 = &i2c0;
		watchdog0 = &wdt0;
		radio = &uart0;
		qdec0 = &pcnt;
	};

	chosen {
		zephyr,sram = &sram0;
		zephyr,console = &usb_serial;
		zephyr,shell-uart = &usb_serial;
		zephyr,flash = &flash0;
		zephyr,display = &ssd1306;
	};

	buttons: buttons {
		compatible = "zephyr,gpio-keys";

		button_boot: button_0 {
			gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
			zephyr,code = <INPUT_KEY_VOLUMEDOWN>;
			label = "BOOT Button";
		};

		button_user: button_1 {
			gpios = <&gpio0 21 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			zephyr,code = <INPUT_BTN_START>;
			label = "Encoder Button";
		};

		button_ptt: button_2 {
			gpios = <&gpio0 3 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
			zephyr,code = <INPUT_BTN_SELECT>;
			label = "PTT Button";
		};
  };
};

&cpu0 {
	clock-frequency = <ESP32_CLK_CPU_240M>;
};

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

&usb_serial {
	status = "okay";
};

&uart0 {
	status = "okay";
	current-speed = <9600>;
	pinctrl-0 = <&uart0_default>;
	pinctrl-names = "default";
};

&i2c0 {
	status = "okay";
	clock-frequency = <I2C_BITRATE_FAST>;
	pinctrl-0 = <&i2c0_default>;
	pinctrl-names = "default";

	ssd1306: ssd1306@3c {
                compatible = "solomon,ssd1306fb";
                reg = <0x3c>;

                width  = <128>;
                height = <64>;

                segment-offset  = <2>;
                page-offset     = <0>;
                display-offset  = <0>;
                multiplex-ratio = <63>;
                prechargep      = <0x22>;

                segment-remap;
                com-invdir;
        };
};

&pcnt {
  pinctrl-0 = <&pcnt_default>;
  pinctrl-names = "default";
  status = "okay";
  #address-cells = <1>;
  #size-cells = <0>;
  unit0@0 {
    reg = <0>;
    #address-cells = <1>;
    #size-cells = <0>;
    filter = <100>;
    channelA@0 {
        reg = <0>;
        sig-pos-mode = <2>;
        sig-neg-mode = <1>;
        ctrl-h-mode = <0>;
        ctrl-l-mode = <1>;
    };
  };
};

&timer0 {
	status = "disabled";
};

&timer1 {
	status = "disabled";
};

&timer2 {
	status = "disabled";
};

&timer3 {
	status = "disabled";
};

&wdt0 {
	status = "okay";
};

&trng0 {
	status = "okay";
};

&pinctrl {
	uart0_default: uart0_default {
		group1 {
			pinmux = <UART0_TX_GPIO39>;
			output-high;
		};
		group2 {
			pinmux = <UART0_RX_GPIO48>;
			bias-pull-up;
		};
	};

	i2c0_default: i2c0_default {
		group1 {
			pinmux = <I2C0_SDA_GPIO8>,
				 <I2C0_SCL_GPIO9>;
			bias-pull-up;
			drive-open-drain;
			output-high;
		};
	};

    pcnt_default: pcnt_default {
        group1 {
            pinmux = <PCNT0_CH0SIG_GPIO46>,
                     <PCNT0_CH0CTRL_GPIO47>;
            bias-pull-up;
        };
    };
};

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

		/* Reserve 64kB for the bootloader */
		boot_partition: partition@0 {
			label = "mcuboot";
			reg = <0x00000000 0x00010000>;
			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>;
		};
	};
};