arch/arm/boot/dts/allwinner/sun5i-a13.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun5i-a13.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun5i-a13.dtsi
Extension
.dtsi
Size
3321 bytes
Lines
119
Domain
Architecture Layer
Bucket
arch/arm
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

#include "sun5i.dtsi"

#include <dt-bindings/thermal/thermal.h>

/ {
	thermal-zones {
		cpu-thermal {
			/* milliseconds */
			polling-delay-passive = <250>;
			polling-delay = <1000>;
			thermal-sensors = <&rtp>;

			cooling-maps {
				map0 {
					trip = <&cpu_alert0>;
					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};
			};

			trips {
				cpu_alert0: cpu-alert0 {
					/* milliCelsius */
					temperature = <85000>;
					hysteresis = <2000>;
					type = "passive";
				};

				cpu_crit: cpu-crit {
					/* milliCelsius */
					temperature = <100000>;
					hysteresis = <2000>;
					type = "critical";
				};
			};
		};
	};

	display-engine {
		compatible = "allwinner,sun5i-a13-display-engine";
		allwinner,pipelines = <&fe0>;
	};

	soc {
		pwm: pwm@1c20e00 {
			compatible = "allwinner,sun5i-a13-pwm";
			reg = <0x01c20e00 0xc>;
			clocks = <&ccu CLK_HOSC>;
			#pwm-cells = <3>;
			status = "disabled";
		};

	};
};

&ccu {
	compatible = "allwinner,sun5i-a13-ccu";
};

&cpu0 {
	clock-latency = <244144>; /* 8 32k periods */
	operating-points =
		/* kHz	  uV */
		<1008000 1400000>,
		<912000 1350000>,
		<864000 1300000>,
		<624000 1200000>,
		<576000 1200000>,
		<432000 1200000>;
	#cooling-cells = <2>;
};

Annotation

Implementation Notes