arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dtsi- Extension
.dtsi- Size
- 3000 bytes
- Lines
- 199
- 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 NanoPC-R4 board device tree source
*
* Copyright (c) 2020 FriendlyElec Computer Tech. Co., Ltd.
* (http://www.friendlyarm.com)
*
* Copyright (c) 2018 Collabora Ltd.
*
* Copyright (c) 2020 Jensen Huang <jensenhuang@friendlyarm.com>
* Copyright (c) 2020 Marty Jones <mj8263788@gmail.com>
* Copyright (c) 2021 Tianling Shen <cnsztl@gmail.com>
*/
/dts-v1/;
#include "rk3399-nanopi4.dtsi"
/ {
/delete-node/ display-subsystem;
gpio-leds {
pinctrl-0 = <&lan_led_pin>, <&sys_led_pin>, <&wan_led_pin>;
/delete-node/ led-0;
lan_led: led-lan {
gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
label = "green:lan";
};
sys_led: led-sys {
gpios = <&gpio0 RK_PB5 GPIO_ACTIVE_HIGH>;
label = "red:power";
default-state = "on";
};
wan_led: led-wan {
gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>;
label = "green:wan";
};
};
gpio-keys {
pinctrl-0 = <&reset_button_pin>;
/delete-node/ key-power;
key-reset {
debounce-interval = <50>;
gpios = <&gpio1 RK_PC6 GPIO_ACTIVE_LOW>;
label = "reset";
linux,code = <KEY_RESTART>;
};
};
vdd_5v: regulator-vdd-5v {
compatible = "regulator-fixed";
regulator-name = "vdd_5v";
regulator-always-on;
regulator-boot-on;
};
};
&emmc_phy {
status = "disabled";
};
/* No USB type-C PD power manager */
/delete-node/ &fusb0;
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.