Jianfeng Liu developed and maintained core embedded Linux infrastructure in the armbian/build repository, delivering hardware enablement, kernel upgrades, and build system improvements across diverse ARM64 and LoongArch platforms. He engineered device tree overlays, streamlined bootloader and kernel configuration, and expanded board support, focusing on stability and deployment readiness. Using C, Shell, and Device Tree, Jianfeng integrated new drivers, managed cross-compilation workflows, and enhanced packaging reliability. His work addressed hardware compatibility, video decoding, and wireless integration, while refining CI/CD and release tooling. The depth of his contributions ensured robust, maintainable systems and accelerated hardware support for evolving embedded and edge devices.
In October 2025, the armbian/build team delivered stability improvements and platform-wide updates for Rockchip64 devices, aligning with reliability and performance goals. Key work includes stabilizing RK3576 CPU OPP handling by reverting a prior fix and removing overclocked OPP tables to prevent voltage/frequency instability; added a RKVDEC QoS disable quirk on selected Rockchip SoCs (including rk3328) to resolve QoS-related video decoding issues; enhanced Forge1 boot/partition handling and board config with a single root partition option, separate BOOTCONFIG for ArmSoM Forge1, and enabling Btrfs boot support in U-Boot; upgraded the kernel to 6.18 across Rockchip64 configurations (including qcs6490-edge) with patch reorganization/renaming to improve maintainability. These changes improve stability, boot reliability, and media performance while reducing maintenance complexity and enabling future feature work.
In October 2025, the armbian/build team delivered stability improvements and platform-wide updates for Rockchip64 devices, aligning with reliability and performance goals. Key work includes stabilizing RK3576 CPU OPP handling by reverting a prior fix and removing overclocked OPP tables to prevent voltage/frequency instability; added a RKVDEC QoS disable quirk on selected Rockchip SoCs (including rk3328) to resolve QoS-related video decoding issues; enhanced Forge1 boot/partition handling and board config with a single root partition option, separate BOOTCONFIG for ArmSoM Forge1, and enabling Btrfs boot support in U-Boot; upgraded the kernel to 6.18 across Rockchip64 configurations (including qcs6490-edge) with patch reorganization/renaming to improve maintainability. These changes improve stability, boot reliability, and media performance while reducing maintenance complexity and enabling future feature work.
September 2025 monthly highlights for armbian/build: delivered significant hardware enablement and stability improvements across Rockchip-based platforms, expanded board support, and refined the build/boot pipeline to improve reliability and deployment speed. Key features delivered include RTL8852BS support on rockchip64, U-Boot changes with mainline mirroring, and UEFI/edge updates, complemented by kernel/build-system refinements that enhance build reliability and deployment workflows.
September 2025 monthly highlights for armbian/build: delivered significant hardware enablement and stability improvements across Rockchip-based platforms, expanded board support, and refined the build/boot pipeline to improve reliability and deployment speed. Key features delivered include RTL8852BS support on rockchip64, U-Boot changes with mainline mirroring, and UEFI/edge updates, complemented by kernel/build-system refinements that enhance build reliability and deployment workflows.
Delivered cross-arch kernel readiness for 6.16 with forward-compatibility for 6.17 RC across architectures; expanded DKMS support via yt6801 extension and install script to improve module reliability; enabled end-to-end Loong64 build and image workflows (base images, targets, and Debian sid minimal images) with host/config templates; enhanced Rockchip video decoding support across VDPU381/383 with HEVC/H.264 and performed code refactoring for per-variant configs; strengthened packaging workflows by adding Loong64 publishing support and refining build dependencies; improved kernel packaging robustness with dynamic kernel image naming; plus targeted stability fixes for Intel Xe driver on LoongArch non-4KiB pages and miscellaneous packaging hardening.
Delivered cross-arch kernel readiness for 6.16 with forward-compatibility for 6.17 RC across architectures; expanded DKMS support via yt6801 extension and install script to improve module reliability; enabled end-to-end Loong64 build and image workflows (base images, targets, and Debian sid minimal images) with host/config templates; enhanced Rockchip video decoding support across VDPU381/383 with HEVC/H.264 and performed code refactoring for per-variant configs; strengthened packaging workflows by adding Loong64 publishing support and refining build dependencies; improved kernel packaging robustness with dynamic kernel image naming; plus targeted stability fixes for Intel Xe driver on LoongArch non-4KiB pages and miscellaneous packaging hardening.
July 2025 (2025-07) monthly summary for armbian/build focusing on cross-architecture build reliability, stability improvements, and new architecture support. Key outcomes include initial LoongArch 64-bit (loong64) support across build config, kernel packaging, and tooling; improvements to deployment hygiene for cross-arch builds; targeted fixes to login/session handling to avoid user disruption; and updates to Bluetooth HCI quirks handling to align with API changes since v6.16-rc7.
July 2025 (2025-07) monthly summary for armbian/build focusing on cross-architecture build reliability, stability improvements, and new architecture support. Key outcomes include initial LoongArch 64-bit (loong64) support across build config, kernel packaging, and tooling; improvements to deployment hygiene for cross-arch builds; targeted fixes to login/session handling to avoid user disruption; and updates to Bluetooth HCI quirks handling to align with API changes since v6.16-rc7.
June 2025 monthly summary for armbian/build: Realtek Wireless Driver Patch Cleanup and Upstream Alignment. Removed kernel v6.16 patches, updated Realtek chipset commits to newer versions, and deleted obsolete patch files to ensure the build system uses current drivers as upstream changes have merged. These changes reduce maintenance overhead, improve kernel compatibility, and stabilize the build pipeline for end users.
June 2025 monthly summary for armbian/build: Realtek Wireless Driver Patch Cleanup and Upstream Alignment. Removed kernel v6.16 patches, updated Realtek chipset commits to newer versions, and deleted obsolete patch files to ensure the build system uses current drivers as upstream changes have merged. These changes reduce maintenance overhead, improve kernel compatibility, and stabilize the build pipeline for end users.
May 2025 monthly summary: Focused on boosting boot observability and release tooling across armbian/build and armbian/os. Delivered serial logging for U-Boot on hinlink-h88k and integrated mkbootimg installation from Debian bookworm-backports for the Noble release. No major bugs fixed this month. These efforts improved debugging efficiency, boot reliability, and end-to-end image creation.
May 2025 monthly summary: Focused on boosting boot observability and release tooling across armbian/build and armbian/os. Delivered serial logging for U-Boot on hinlink-h88k and integrated mkbootimg installation from Debian bookworm-backports for the Noble release. No major bugs fixed this month. These efforts improved debugging efficiency, boot reliability, and end-to-end image creation.
April 2025 – armbian/build: Re-enabled AIC8800 WiFi driver on Rockchip vendor kernels by reverting the patch that disabled it, restoring DKMS-based build and installation and ensuring driver availability on vendor kernels. This work improves hardware compatibility and user experience for devices relying on Rockchip vendor kernel builds.
April 2025 – armbian/build: Re-enabled AIC8800 WiFi driver on Rockchip vendor kernels by reverting the patch that disabled it, restoring DKMS-based build and installation and ensuring driver availability on vendor kernels. This work improves hardware compatibility and user experience for devices relying on Rockchip vendor kernel builds.
March 2025 monthly summary for armbian/build focused on delivering hardware stability and display integration across RK64-based boards, with concrete kernel/DT changes and commits that improve user experience and reliability on key SKUs.
March 2025 monthly summary for armbian/build focused on delivering hardware stability and display integration across RK64-based boards, with concrete kernel/DT changes and commits that improve user experience and reliability on key SKUs.
February 2025 (armbian/build) — Focused on upgrading core boot and kernel tooling, expanding hardware support, and tightening release infrastructure. Key deliveries include: U-Boot radxa rk35xx upgrades (bump to next-dev-v2024.10; merge rk3576 changes; disable OP-TEE; add PD negotiation; remove BL32; patch across rk35xx and related boards). Linux-image packaging updates (wireguard modules; mainline kernel 6.14-rc2; fix wireless build for 6.14; rockchip64-edge 6.14). Packaging and repo improvements (Kisak VPU PPA for jammy; ghproxy mirror fix; removal of software-properties-common/gtk for newer releases). Rockchip64 HDMI display support: enable HDMI1 display modes on RK3588 and HDMI1 support for Rock5 ITX. Stability and maintenance: fix 6.14 make clean failure in tools dir; patch RK3588 multi HDMI PLL clock; Mesa-vpu Chromium back for Debian/Noble; mainline-kernel.conf.sh: bump 6.14 to rc4. Business value: improved hardware compatibility, faster releases, better security and maintainability, reducing build-related issues and enabling downstream compatibility.
February 2025 (armbian/build) — Focused on upgrading core boot and kernel tooling, expanding hardware support, and tightening release infrastructure. Key deliveries include: U-Boot radxa rk35xx upgrades (bump to next-dev-v2024.10; merge rk3576 changes; disable OP-TEE; add PD negotiation; remove BL32; patch across rk35xx and related boards). Linux-image packaging updates (wireguard modules; mainline kernel 6.14-rc2; fix wireless build for 6.14; rockchip64-edge 6.14). Packaging and repo improvements (Kisak VPU PPA for jammy; ghproxy mirror fix; removal of software-properties-common/gtk for newer releases). Rockchip64 HDMI display support: enable HDMI1 display modes on RK3588 and HDMI1 support for Rock5 ITX. Stability and maintenance: fix 6.14 make clean failure in tools dir; patch RK3588 multi HDMI PLL clock; Mesa-vpu Chromium back for Debian/Noble; mainline-kernel.conf.sh: bump 6.14 to rc4. Business value: improved hardware compatibility, faster releases, better security and maintainability, reducing build-related issues and enabling downstream compatibility.
January 2025 monthly work summary for armbian/build with a focus on rk356x/rockchip64, sm8250, and related boards. Delivered critical hardware compatibility improvements, robust boot/remote access enhancements, and build-system robustness, driving stability and deployment readiness across multiple devices. Highlights include PCIe2 reset fix, Type-C and PD support, initramfs network and remote access enhancements, ABL boot-recovery image build, and Realtek driver compatibility updates for kernel 6.13+.
January 2025 monthly work summary for armbian/build with a focus on rk356x/rockchip64, sm8250, and related boards. Delivered critical hardware compatibility improvements, robust boot/remote access enhancements, and build-system robustness, driving stability and deployment readiness across multiple devices. Highlights include PCIe2 reset fix, Type-C and PD support, initramfs network and remote access enhancements, ABL boot-recovery image build, and Realtek driver compatibility updates for kernel 6.13+.
December 2024 monthly summary focusing on business value and technical achievements across armbian/configng and armbian/build. Highlights include streamlined device tree overlay management, kernel upgrades and configuration consolidation, and platform-wide maintenance improvements that accelerate hardware support and stability.
December 2024 monthly summary focusing on business value and technical achievements across armbian/configng and armbian/build. Highlights include streamlined device tree overlay management, kernel upgrades and configuration consolidation, and platform-wide maintenance improvements that accelerate hardware support and stability.
November 2024: Expanded hardware platform coverage, modernized kernel and boot tooling, and strengthened build reliability. Delivered ArmSoM CM5 and Raspberry Pi CM4 IO board support with PD negotiation and rfkill management; enhanced RK3588 HDMI/video decoding with devicetree tweaks and NanoPC T6 support; upgraded RK64 Edge/RK3588 to kernel 6.12, with patches cleaned and sched_ext disabled; modernized rk3576 bootloader tooling using boot_merger for idbloader.img; improved packaging reliability by sourcing base-files versions from GitHub Actions JSON and removing Chromium PPAs and downstream hwrng patches. On armbian/os, enabled mesa-vpu extension for RK3588 community targets.
November 2024: Expanded hardware platform coverage, modernized kernel and boot tooling, and strengthened build reliability. Delivered ArmSoM CM5 and Raspberry Pi CM4 IO board support with PD negotiation and rfkill management; enhanced RK3588 HDMI/video decoding with devicetree tweaks and NanoPC T6 support; upgraded RK64 Edge/RK3588 to kernel 6.12, with patches cleaned and sched_ext disabled; modernized rk3576 bootloader tooling using boot_merger for idbloader.img; improved packaging reliability by sourcing base-files versions from GitHub Actions JSON and removing Chromium PPAs and downstream hwrng patches. On armbian/os, enabled mesa-vpu extension for RK3588 community targets.
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