arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/allwinner/sun7i-a20-pcduino3.dts- Extension
.dts- Size
- 4799 bytes
- Lines
- 228
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
sun7i-a20.dtsisunxi-common-regulators.dtsidt-bindings/gpio/gpio.hdt-bindings/input/input.hdt-bindings/interrupt-controller/irq.haxp209.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
/dts-v1/;
#include "sun7i-a20.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 = "LinkSprite pcDuino3";
compatible = "linksprite,pcduino3", "allwinner,sun7i-a20";
aliases {
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
leds {
compatible = "gpio-leds";
led-0 {
label = "pcduino3:green:tx";
gpios = <&pio 7 15 GPIO_ACTIVE_LOW>;
};
led-1 {
label = "pcduino3:green:rx";
gpios = <&pio 7 16 GPIO_ACTIVE_LOW>;
};
};
gpio-keys {
compatible = "gpio-keys";
key-back {
label = "Key Back";
linux,code = <KEY_BACK>;
gpios = <&pio 7 17 GPIO_ACTIVE_LOW>;
};
key-home {
label = "Key Home";
linux,code = <KEY_HOME>;
gpios = <&pio 7 18 GPIO_ACTIVE_LOW>;
};
key-menu {
label = "Key Menu";
linux,code = <KEY_MENU>;
gpios = <&pio 7 19 GPIO_ACTIVE_LOW>;
};
};
};
&ahci {
target-supply = <®_ahci_5v>;
status = "okay";
};
&codec {
status = "okay";
};
&cpu0 {
cpu-supply = <®_dcdc2>;
};
Annotation
- Immediate include surface: `sun7i-a20.dtsi`, `sunxi-common-regulators.dtsi`, `dt-bindings/gpio/gpio.h`, `dt-bindings/input/input.h`, `dt-bindings/interrupt-controller/irq.h`, `axp209.dtsi`.
- Atlas domain: Architecture Layer / arch/arm.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.