arch/arm/boot/dts/allwinner/sun4i-a10-gemei-g9.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun4i-a10-gemei-g9.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/allwinner/sun4i-a10-gemei-g9.dts
Extension
.dts
Size
4353 bytes
Lines
193
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 "sun4i-a10.dtsi"
#include "sunxi-common-regulators.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	model = "Gemei G9 Tablet";
	compatible = "gemei,g9", "allwinner,sun4i-a10";

	aliases {
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};
};

/*
 * TODO:
 *   2x cameras via CSI
 *   AXP battery management
 *   NAND
 *   OTG
 *   Touchscreen - gt801_2plus1 @ i2c adapter 2 @ 0x48
 */
&codec {
	/* PH15 controls power to external amplifier (ft2012q) */
	allwinner,pa-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>;
	status = "okay";
};

&cpu0 {
	cpu-supply = <&reg_dcdc2>;
};

&ehci0 {
	status = "okay";
};

&ehci1 {
	status = "okay";
};

&i2c0 {
	status = "okay";

	axp209: pmic@34 {
		reg = <0x34>;
		interrupts = <0>;
	};
};

#include "axp209.dtsi"

&i2c1 {
	status = "okay";

	/* Accelerometer */
	bma250@18 {
		compatible = "bosch,bma250";
		reg = <0x18>;
		interrupt-parent = <&pio>;
		interrupts = <7 0 IRQ_TYPE_EDGE_RISING>; /* PH00 / EINT0 */
	};
};

&lradc {

Annotation

Implementation Notes