Add board: Lubancat 5IO (RK3588)

[lch08]

Description

This PR adds initial Armbian support for the Embedfire LubanCat-5IO board based on RK3588.

The change introduces a new board definition, mainline U-Boot defconfig, and board DTS files for both kernel and U-Boot so the board can build with the existing rockchip-rk3588 family flow.

Documentation summary for feature / change

Add a new community-supported RK3588 board target for Embedfire LubanCat-5IO. The board boots with mainline U-Boot and provides DTS enablement for storage, networking, USB, display, PCIe, SATA, RTC, fan, and basic onboard peripherals.

Manufacturer documentation: https://doc.embedfire.com/linux/rk3588/quick_start/zh/latest/quick_start/lubancat/lubancat5.html#id7
Manufacturer BSP: https://github.com/LubanCat/manifests/

How Has This Been Tested?

Build: ./compile.sh build BOARD=lubancat-5io RELEASE=noble BRANCH=current BUILD_DESKTOP=yes BUILD_MINIMAL=no DESKTOP_ENVIRONMENT=kde-plasma DESKTOP_TIER=minimal
Than flashed the system to the lubancat-5io board, connected via debug serial console to test various functions

Hardware validation reported during bring-up:

• eMMC
• SD
• NVMe
• dual GMAC
• 3x USB2.0
• 1x USB3.0
• 1x Type-C USB3.0
• 1x Mini-PCIe over USB2.0
• M.2 E-Key PCIe
• 2x HDMI output
• HDMI RX
• RTC
• PCA9535
• LED
• fan
• power button

Known issues / not yet validated:

• Type-C DP Alt Mode currently shows a black screen
• RS485 not implemented yet
• RS232 not implemented yet
• CAN not implemented yet
• MIPI DSI not supported in this bring-up
• MIPI CSI not supported in this bring-up
• SATA not tested
• PCIe x4 slot not tested
• Mini-PCIe PCIe mode not tested
• ES8388 audio not tested
• IR not tested

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Summary by CodeRabbit

• New Features
  • Added Linux device support for the Embedfire LubanCat 5IO (RK3588), including ES8388 audio, Recovery/GPIO IR input, dual HDMI, dual RGMII Ethernet, SATA/SD storage, PCIe/M.2 and Mini-PCIe slots, and USB-C with DisplayPort alternate mode.
  • Added board power/thermal modeling (RK806 PMIC/regulators, status LED, PWM fan and cooling trips).
  • Added matching U-Boot support (defconfig, board device-tree, and updated boot flow to use a mainline U-Boot image written during boot).

[coderabbitai]

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📝 Walkthrough

Walkthrough

Adds LubanCat 5IO board support with new board config, U-Boot integration, and RK3588 device-tree files for U-Boot plus the 6.18 and 7.1 kernel archives.

Changes

LubanCat 5IO (RK3588) Board Support

Layer / File(s)	Summary
Board config and U-Boot hook config/boards/lubancat-5io.csc	Adds board metadata and boot defaults, then overrides family U-Boot settings to use mainline v2026.04 and write the binman-produced image with dd.
U-Boot defconfig and DTS patch/u-boot/v2026.04/defconfig/lubancat-5io-rk3588_defconfig, patch/u-boot/v2026.04/dt_upstream_rockchip/rk3588-lubancat-5io.dts	Adds the RK3588 U-Boot defconfig and board DTS covering board identity, input/audio/display, regulators, SoC power, PCIe, storage, PMIC, USB, and watchdog wiring.
Kernel 6.18 DTS patch/kernel/archive/rockchip64-6.18/dt/rk3588-lubancat-5io.dts	Defines board identity, audio, IR input, LEDs, fan cooling, regulators, SoC power, display, networking, storage, PCIe, PMIC, USB, video, and watchdog wiring for the 6.18 archive DTS.
Kernel 7.1 DTS patch/kernel/archive/rockchip64-7.1/dt/rk3588-lubancat-5io.dts	Defines board identity, audio, HDMI, regulators, SoC power, I2C devices, PCIe, pinctrl, storage, PMIC, USB, video, and watchdog wiring for the 7.1 archive DTS.

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~60 minutes

Possibly related PRs

• armbian/build#9119: Both PRs add RK3588 board support that injects a board-specific post_family_config__..._use_mainline_uboot() hook (including write_uboot_platform/U-Boot platform blob handling), but for different boards/files.
• armbian/build#9398: Both PRs add board-specific post_family_config__..._use_mainline_uboot() hooks in .csc files to switch Armbian’s U-Boot setup to a mainline v2026.x flow.
• armbian/build#9880: Both PRs add board-specific mainline U-Boot override hooks and write_uboot_platform handling for Rockchip boards.

Suggested labels

BSP

Suggested reviewers

• ColorfulRhino
• HeyMeco
• JohnTheCoolingFan
• TheSnowfield
• Tonymac32
• amazingfate
• brentr
• catalinii
• chainsx
• efectn
• iav
• joekhoobyar
• krachlatte
• lanefu
• paolosabatino
• prahal
• pyavitz
• rpardini
• schwar3kat
• EvilOlaf

Poem

🐰 Hop-hop, the 5IO wakes in light,
Mainline boots and spins up right.
HDMI hums, and fans go purr,
RK3588 makes the circuits stir.
One board, two kernels, all set to go—
Thump! says the rabbit, a happy glow.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: adding support for the LubanCat 5IO RK3588 board.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[github-actions]

Hey @lch08! 👋

Thanks for submitting your first pull request to the Armbian project — we're excited to have you contributing! 🧡
Your effort doesn’t just improve Armbian — it benefits the entire community of users and developers.

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Also, don’t forget to ⭐ star the repo if you haven’t already — and welcome aboard! 🚀

[EvilOlaf]

Add board assets to https://github.com/armbian/armbian.github.io
The workflow seems broken. @igorpecovnik

[igorpecovnik]

The workflow seems broken.

This is the correct behaviour:

It was corrected later, so merging.

[lch08]

Add board assets to https://github.com/armbian/armbian.github.io The workflow seems broken. @igorpecovnik

I have submitted a PR for the development board image and manufacturer logo to armbian.github.io: armbian/armbian.github.io#348

[github-actions]

✅ This PR has been reviewed and approved — all set for merge!