arch/arm/boot/dts/allwinner/sun6i-a31s-sina31s-core.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun6i-a31s-sina31s-core.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun6i-a31s-sina31s-core.dtsi
Extension
.dtsi
Size
3846 bytes
Lines
142
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

/dts-v1/;
#include "sun6i-a31s.dtsi"
#include "sunxi-common-regulators.dtsi"

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

/ {
	model = "Sinlinx SinA31s Core Board";
	compatible = "sinlinx,sina31s", "allwinner,sun6i-a31s";

	aliases {
		serial0 = &uart0;
	};
};

&cpu0 {
	cpu-supply = <&reg_dcdc3>;
};

/* eMMC on core board */
&mmc3 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc3_8bit_emmc_pins>;
	vmmc-supply = <&reg_dcdc1>;
	vqmmc-supply = <&reg_dcdc1>;
	bus-width = <8>;
	non-removable;
	cap-mmc-hw-reset;
	status = "okay";
};

/* AXP221s PMIC on core board */
&p2wi {
	status = "okay";

	axp22x: pmic@68 {
		compatible = "x-powers,axp221";
		reg = <0x68>;
		interrupt-parent = <&r_intc>;
		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
	};
};

#include "axp22x.dtsi"

&reg_aldo3 {
	regulator-always-on;
	regulator-min-microvolt = <2700000>;
	regulator-max-microvolt = <3300000>;
	regulator-name = "avcc";
};

&reg_dc5ldo {
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-cpus";
};

&reg_dcdc1 {
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "vcc-3v0";
};

&reg_dcdc2 {
	regulator-min-microvolt = <700000>;
	regulator-max-microvolt = <1320000>;
	regulator-name = "vdd-gpu";
};

Annotation

Implementation Notes