arch/arm/boot/dts/allwinner/sun8i-a23-a33.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun8i-a23-a33.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun8i-a23-a33.dtsi
Extension
.dtsi
Size
21420 bytes
Lines
856
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 <dt-bindings/interrupt-controller/arm-gic.h>

#include <dt-bindings/clock/sun6i-rtc.h>
#include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
#include <dt-bindings/reset/sun8i-a23-a33-ccu.h>

/ {
	interrupt-parent = <&gic>;
	#address-cells = <1>;
	#size-cells = <1>;

	chosen {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		simplefb_lcd: framebuffer-lcd0 {
			compatible = "allwinner,simple-framebuffer",
				     "simple-framebuffer";
			allwinner,pipeline = "de_be0-lcd0";
			clocks = <&ccu CLK_BUS_LCD>, <&ccu CLK_BUS_DE_BE>,
				 <&ccu CLK_LCD_CH0>, <&ccu CLK_DE_BE>,
				 <&ccu CLK_DRAM_DE_BE>, <&ccu CLK_DRC>;
			status = "disabled";
		};
	};

	de: display-engine {
		/* compatible gets set in SoC specific dtsi file */
		allwinner,pipelines = <&fe0>;
		status = "disabled";
	};

	timer {
		compatible = "arm,armv7-timer";
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
		clock-frequency = <24000000>;
		arm,cpu-registers-not-fw-configured;
	};

	cpus {
		enable-method = "allwinner,sun8i-a23";
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			compatible = "arm,cortex-a7";
			device_type = "cpu";
			reg = <0>;
		};

		cpu@1 {
			compatible = "arm,cortex-a7";
			device_type = "cpu";
			reg = <1>;
		};
	};

	clocks {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		osc24M: osc24M-clk {
			#clock-cells = <0>;
			compatible = "fixed-clock";
			clock-frequency = <24000000>;

Annotation

Implementation Notes