arch/arm64/boot/dts/freescale/imx93.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx93.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx93.dtsi
Extension
.dtsi
Size
4273 bytes
Lines
198
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright 2022,2025 NXP
 */

#include "imx91_93_common.dtsi"

/{
	cm33: remoteproc-cm33 {
		compatible = "fsl,imx93-cm33";
		clocks = <&clk IMX93_CLK_CM33_GATE>;
		status = "disabled";
	};

	thermal-zones {
		cpu-thermal {
			polling-delay-passive = <250>;
			polling-delay = <2000>;

			thermal-sensors = <&tmu 0>;

			trips {
				cpu_alert: cpu-alert {
					temperature = <80000>;
					hysteresis = <2000>;
					type = "passive";
				};

				cpu_crit: cpu-crit {
					temperature = <90000>;
					hysteresis = <2000>;
					type = "critical";
				};
			};

			cooling-maps {
				map0 {
					trip = <&cpu_alert>;
					cooling-device =
						<&A55_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
						<&A55_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};
			};
		};
	};

	soc@0 {
		npu@4a900000 {
			compatible = "fsl,imx93-npu", "arm,ethos-u65";
			reg = <0x4a900000 0x1000>;
			interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
			power-domains = <&mlmix>;
			clocks = <&clk IMX93_CLK_ML>, <&clk IMX93_CLK_ML_APB>;
			clock-names = "core", "apb";
			sram = <&sram>;
			assigned-clocks = <&clk IMX93_CLK_ML>, <&clk IMX93_CLK_ML_APB>;
			assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1>,
						 <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>;
			assigned-clock-rates = <800000000>, <133000000>;
		};
	};

	sram: sram@20480000 {
		compatible = "mmio-sram";
		reg = <0x0 0x20480000 0x0 0x18000>;
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0x0 0x0 0x20480000 0x18000>;
	};
};

Annotation

Implementation Notes