Worked on enhancing hardware compatibility in the flipperdevices/u-boot repository by delivering a targeted feature for Exynos DW MMC support. Focused on kernel development and device driver integration, the work involved adding Exynos5420 device tree compatibility to the exynos_dw_mmc driver using C. This update aligned the driver with newer Linux kernel DTS configurations by registering samsung,exynos5420-dw-mshc and samsung,exynos5420-dw-mshc-smu compatibles. The approach reduced boot-time and device-tree configuration issues on Exynos5420-based platforms, streamlining downstream maintenance. Demonstrated expertise in embedded systems and kernel-level driver development, with clear, traceable changes that improved deployment resilience for hardware integrators.