Linux preempt-rt

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Elixir Cross Referencer

#include <arm/armv7-m.dtsi>
#include <dt-bindings/i2c/i2c.h>
#include <dt-bindings/gpio/gpio.h>
#include <nordic/mem.h>

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

		cpu@0 {
			device_type = "cpu";
			compatible = "arm,cortex-m4f";
			reg = <0>;
		};
	};

	flash-controller@4001E000 {
			compatible = "nrf,nrf52-flash-controller";
			reg = <0x4001E000 0x550>;

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

			label="NRF_FLASH_DRV_NAME";

			flash0: flash@0 {
				compatible = "soc-nv-flash";
				label = "NRF_FLASH";
				reg = <0x00000000 DT_FLASH_SIZE>;
				erase-block-size = <4096>;
				write-block-size = <4>;
			};
	};

	sram0: memory@20000000 {
		device_type = "memory";
		compatible = "mmio-sram";
		reg = <0x20000000 DT_SRAM_SIZE>;
	};

	soc {
		uart0: uart@40002000 {
			/* uart can be either UART or UARTE, for the user to pick */
			/* compatible = "nordic,nrf-uarte" or "nordic,nrf-uart"; */
			reg = <0x40002000 0x1000>;
			interrupts = <2 1>;
			status = "disabled";
			label = "UART_0";
		};

		uart1: uart@40028000 {
			compatible = "nordic,nrf-uarte";
			reg = <0x40028000 0x1000>;
			interrupts = <40 1>;
			status = "disabled";
			label = "UART_1";
		};

		gpiote: gpiote@40006000 {
			compatible = "nordic,nrf-gpiote";
			reg = <0x40006000 0x1000>;
			interrupts = <6 5>;
			interrupt-names = "gpiote";
			status = "disabled";
			label = "GPIOTE_0";
		};

		gpio0: gpio@50000000 {
			compatible = "nordic,nrf-gpio";
			gpio-controller;
			reg = <0x50000000 0x200
			       0x50000500 0x300>;
			#gpio-cells = <2>;
			label = "GPIO_0";
			status = "disabled";
		};

		gpio1: gpio@50000300 {
			compatible = "nordic,nrf-gpio";
			gpio-controller;
			reg = <0x50000300 0x200
			       0x50000800 0x300>;
			#gpio-cells = <2>;
			label = "GPIO_1";
			status = "disabled";
		};

		i2c0: i2c@40003000 {
			compatible = "nordic,nrf5-i2c";
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <0x40003000 0x1000>;
			clock-frequency = <I2C_BITRATE_STANDARD>;
			interrupts = <3 1>;
			status = "disabled";
			label = "I2C_0";
		};

		i2c1: i2c@40004000 {
			compatible = "nordic,nrf5-i2c";
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <0x40004000 0x1000>;
			clock-frequency = <I2C_BITRATE_STANDARD>;
			interrupts = <4 1>;
			status = "disabled";
			label = "I2C_1";
		};

		usbd: usbd@40027000 {
			compatible = "nordic,nrf-usbd";
			reg = <0x40027000 0x1000>;
			interrupts = <39 1>;
			interrupt-names = "usbd";
			num-bidir-endpoints = <1>;
			num-in-endpoints = <7>;
			num-out-endpoints = <7>;
			num-isoin-endpoints = <1>;
			num-isoout-endpoints = <1>;
			status = "disabled";
			label = "USBD";
		};

		wdt: watchdog@40010000 {
			compatible = "nordic,nrf-watchdog";
			reg = <0x40010000 0x1000>;
			interrupts = <16 1>;
			interrupt-names = "wdt";
			label = "WDT";
		};
	};
};

&nvic {
	arm,num-irq-priority-bits = <3>;
};