arch/arm64/boot/dts/rockchip/rk3399-nanopi-m4.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/rockchip/rk3399-nanopi-m4.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/rockchip/rk3399-nanopi-m4.dtsi- Extension
.dtsi- Size
- 1173 bytes
- Lines
- 61
- Domain
- Architecture Layer
- Bucket
- arch/arm64
- 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
rk3399-nanopi4.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* FriendlyElec NanoPi M4 board device tree source
*
* Copyright (c) 2018 FriendlyElec Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*
* Copyright (c) 2018 Collabora Ltd.
* Copyright (c) 2019 Arm Ltd.
*/
/dts-v1/;
#include "rk3399-nanopi4.dtsi"
/ {
vdd_5v: regulator-vdd-5v {
compatible = "regulator-fixed";
regulator-name = "vdd_5v";
regulator-always-on;
regulator-boot-on;
};
vcc5v0_core: regulator-vcc5v0-core {
compatible = "regulator-fixed";
regulator-name = "vcc5v0_core";
regulator-always-on;
regulator-boot-on;
vin-supply = <&vdd_5v>;
};
vcc5v0_usb1: regulator-vcc5v0-usb1 {
compatible = "regulator-fixed";
regulator-name = "vcc5v0_usb1";
regulator-always-on;
regulator-boot-on;
vin-supply = <&vcc5v0_sys>;
};
vcc5v0_usb2: regulator-vcc5v0-usb2 {
compatible = "regulator-fixed";
regulator-name = "vcc5v0_usb2";
regulator-always-on;
regulator-boot-on;
vin-supply = <&vcc5v0_sys>;
};
};
&vcc3v3_sys {
vin-supply = <&vcc5v0_core>;
};
&u2phy1_host {
phy-supply = <&vcc5v0_usb2>;
};
&vbus_typec {
regulator-always-on;
vin-supply = <&vdd_5v>;
};
Annotation
- Immediate include surface: `rk3399-nanopi4.dtsi`.
- Atlas domain: Architecture Layer / arch/arm64.
- 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.