[Device Support] Integration of KICKPI K1 (RK3568B2) and inquiry about SWT6621S Driver placement

[lyimoexiao]

Description

I have successfully adapted Armbian for the KICKPI K1 (Rockchip RK3568B2). The system is currently stable, and I would like to contribute the build scripts and configurations to the Armbian repository.

However, I need some guidance regarding the integration of the Wi-Fi and Bluetooth drivers for the SWT6621S chip.

Technical Details

• Device: KICKPI K1
• SoC: Rockchip RK3568B2
• Connectivity: SWT6621S (Wi-Fi/BT combo) aka. "VS6621SR(40/80)"
• Current Status: I have the SDK for the SWT6621S drivers (Wi-Fi & BT), and they are working in my local build.

Questions for Maintainers

I would like to ensure my PR adheres to Armbian's coding standards and repository structure:

1. Driver Placement: I currently have the Bluetooth driver source under ./drivers/bluetooth/skwbt. Is this the preferred location for Armbian's kernel source tree, or should I implement this via the extras / extensions mechanism to keep the core kernel clean?
2. Firmware: Since these drivers usually require proprietary blobs, should I submit the firmware to armbian/firmware separately?
3. DTS: I have prepared the Device Tree files. Should I submit them as a patch against the current kernel or as a standalone addition?

Proposed To-Do List

• Submit KICKPI K1 board configuration file.
• Submit kernel patches for RK3568 / K1 support.
• Finalize the driver integration based on your feedback.

I am looking forward to your suggestions so I can prepare the Pull Request accordingly. Thank you for your hard work on Armbian!