December 2025 monthly summary for flipperdevices/u-boot. Focused on hardware enablement for new System-on-Modules and stabilizing ConfigBlock handling to support rapid onboarding of future SoMs. Delivered initial Aquila AM69 support for Toradex, and expanded ConfigBlock support to include two new SoM families (Lino and OSM), along with PID4 mappings for the new devices. Work completed with contributions from the Toradex team and internal maintainers, including code reviews and sign-offs. This work improves hardware compatibility and modularity, enabling faster onboarding of new SOMs and reducing integration risk for customers adopting high-end modules like Aquila AM69.

October 2025 monthly summary focused on delivering cross-board USB OS Descriptors support for fastboot in flipperdevices/u-boot, enabling automatic OS-level device configuration and unattended installations across Verd in AM62/AM62P, Apalis iMX6, Colibri family, Verdin iMX8 series, and Toradex i.MX8MP. Implemented via a single defconfig option, consolidating changes to minimize board-specific maintenance and reduce onboarding friction for new devices on Windows and other OSes.

July 2025: Security and reliability improvements across U-Boot and Linux kernel, delivering cross-board RNG-based KASLR seed support and enhanced I2C LPI2C reliability. Core work extended entropy provisioning for KASLR via DM_RNG, CAAM entropy, and OP-TEE integration, covering Verdin IMX8 variants, Toradex Smarc IMX8MP, Apalis IMX8, Colibri IMX8X, and Verdin AM62/AM62P. Linux kernel I2C LPI2C driver refactors unlocked atomic transfer capabilities and improved register polling reliability. These efforts improve boot-time security, peripheral control reliability, and overall maintainability across key platforms.

May 2025: Focused on streamlining build configurations, aligning with upstream kernel definitions, and improving board bring-up stability. Key changes reduce build size, simplify maintenance, and enhance cross-board reliability with timing-aware DDR detection.

February 2025: Delivered hardware compatibility enhancement in u-boot to support NXP PCAL6408A and PCAL6416A GPIO expanders. Implemented compatibility strings in pca953x_gpio.c, enabling proper recognition and use of these expanders by the GPIO subsystem. This aligns with our goal of broadening peripheral support and reducing integration time for new PCAL-based hardware.