dts/riscv/espressif/esp32c3.dtsi

/*
 * Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#include <mem.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/esp-esp32c3-intmux.h>
#include <dt-bindings/clock/esp32c3_clock.h>

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	chosen {
		zephyr,entropy = &trng0;
		zephyr,flash-controller = &flash;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			device_type = "cpu";
			compatible = "riscv";
			reg = <0>;
		};
	};

	soc {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "simple-bus";
		ranges;

		sram0: memory@3fc7c000 {
			compatible = "mmio-sram";
			reg = <0x3fc7c000 0x50000>;
		};

		pinmux: pinmux@60009000 {
			compatible = "espressif,esp32-pinmux";
			reg = <0x60009000 0x800>;
		};

		intc: interrupt-controller@600c2000 {
			#interrupt-cells = <1>;
			compatible = "espressif,esp32-intc";
			interrupt-controller;
			reg = <0x600c2000 0x198>;
			label = "INTC_0";
			status = "okay";
		};

		systimer0: systimer@60023000 {
			compatible = "espressif,esp32-systimer";
			reg = <0x60023000 0x80>;
			interrupts = <SYSTIMER_TARGET0_EDGE_INTR_SOURCE>;
			interrupt-parent = <&intc>;
			label = "SYSTIMER_0";
			status = "okay";
		};

		rtc: rtc@60008000 {
			compatible = "espressif,esp32-rtc";
			reg = <0x60008000 0x1000>;
			label = "RTC";
			xtal-freq = <ESP32_CLK_XTAL_40M>;
			xtal-div = <0>;
			#clock-cells = <1>;
			status = "ok";
		};

		flash: flash-controller@60002000 {
			compatible = "espressif,esp32-flash-controller";
			label = "FLASH_CTRL";
			reg = <0x60002000 0x1000>;

			#address-cells = <1>;
			#size-cells = <1>;

			flash0: flash@0 {
				compatible = "soc-nv-flash";
				label = "FLASH_ESP32C3";
				reg = <0 0x400000>;
				erase-block-size = <4096>;
				write-block-size = <4>;
			};
		};

		gpio0: gpio@60004000 {
			compatible = "espressif,esp32-gpio";
			gpio-controller;
			#gpio-cells = <2>;
			reg = <0x60004000 0x800>;
			interrupts = <GPIO_INTR_SOURCE>;
			interrupt-parent = <&intc>;
			label = "GPIO_0";
			ngpios = <32>;   /* 0..31 */
		};

		uart0: uart@60000000 {
			compatible = "espressif,esp32-uart";
			reg = <0x60000000 0x400>;
			label = "UART_0";
			interrupts = <UART0_INTR_SOURCE>;
			interrupt-parent = <&intc>;
			clocks = <&rtc ESP32_UART0_MODULE>;
			current-speed = <115200>;
			status = "okay";
			tx-pin = <21>;
			rx-pin = <20>;
		};

		uart1: uart@60010000 {
			compatible = "espressif,esp32-uart";
			reg = <0x60010000 0x400>;
			label = "UART_1";
			status = "disabled";
			interrupts = <UART1_INTR_SOURCE>;
			interrupt-parent = <&intc>;
			clocks = <&rtc ESP32_UART1_MODULE>;
			current-speed = <115200>;
		};

		trng0: trng@3ff700b0 {
			compatible = "espressif,esp32-trng";
			reg = <0x3FF700B0 0x4>;
			label = "TRNG_0";
			status = "disabled";
		};

		spi2: spi@60024000 {
			compatible = "espressif,esp32-spi";
			reg = <0x60024000 DT_SIZE_K(4)>;
			interrupts = <SPI2_INTR_SOURCE>;
			interrupt-parent = <&intc>;
			label = "SPI_2";
			clocks = <&rtc ESP32_SPI2_MODULE>;
			status = "disabled";
			use-iomux;
		};
	};

};