arch/arm64/boot/dts/qcom/sdm632.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/sdm632.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/sdm632.dtsi
Extension
.dtsi
Size
1511 bytes
Lines
90
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: BSD-3-Clause
/* Copyright (c) 2022, The Linux Foundation. All rights reserved. */

#include "msm8953.dtsi"

/ {
	thermal-zones {
		/delete-node/cpu1-thermal;
		/delete-node/cpu2-thermal;
		/delete-node/cpu3-thermal;

		cpu0-thermal {
			thermal-sensors = <&tsens0 13>;

			cooling-maps {
				map0 {
					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
							 <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
							 <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};
			};
		};

		cpu4-thermal {
			thermal-sensors = <&tsens0 5>;
		};

		cpu5-thermal {
			thermal-sensors = <&tsens0 6>;
		};

		cpu6-thermal {
			thermal-sensors = <&tsens0 7>;
		};

		cpu7-thermal {
			thermal-sensors = <&tsens0 8>;
		};
	};
};

/*
 * SDM632 uses Kryo 250 instead of Cortex A53
 * cpu0-3 are efficiency cores, cpu4-7 are performance cores
 */
&cpu0 {
	compatible = "qcom,kryo250";
};

&cpu1 {
	compatible = "qcom,kryo250";
};

&cpu2 {
	compatible = "qcom,kryo250";
};

&cpu3 {
	compatible = "qcom,kryo250";
};

&cpu4 {
	compatible = "qcom,kryo250";
	capacity-dmips-mhz = <1980>;
};

&cpu5 {
	compatible = "qcom,kryo250";
	capacity-dmips-mhz = <1980>;

Annotation

Implementation Notes