Month: 2024-12. This month focused on stabilizing boot-time behavior in the FEC network driver within flipperdevices/u-boot. There were no new feature deliveries; the work centered on a critical bug fix that enhances boot reliability and kernel stability during early init. Key achievements: - Implemented DM_FLAG_ACTIVE_DMA to ensure DMA remains inactive for the FEC network card during active boot, preventing potential kernel memory corruption and kernel crashes during early initialization. - Coordinated fix in flipperdevices/u-boot with commit 2f74cac8c324339eaf123a2e7d602b4568d87ce1 (net: fec_mxc: add DM_FLAG_ACTIVE_DMA flag for FEC network driver). - Improved boot-time reliability and stability for FEC network bring-up, reducing risk of boot-time failures. Impact and value: - Higher system reliability during power-on and reset sequences, accelerating hardware bring-up in production and reducing post-release hotfixes. - Clearer DMA handling semantics in the FEC driver, enabling easier future maintenance and testing. Technologies/skills demonstrated: - Kernel driver development, DMA management, and safe boot-time sequencing - U-Boot modifications and integration with the boot process - Code review discipline, Git-based change management, and targeted bug-fix delivery