Worked on enhancing the Mediatek SPI-NOR controller driver in the flipperdevices/u-boot repository, focusing on reliability, performance, and compatibility across different SoCs. Applied C programming and embedded systems expertise to introduce stronger safety checks, reduce runtime memory allocations, and optimize data transfer paths. The updates included explicit error propagation, improved boundary checks to prevent unsafe register access, and support for newer SoCs with unique hardware quirks. By eliminating unnecessary buffers and conditionally transferring data, the work reduced boot-time variability and memory usage, resulting in faster, safer system initialization while maintaining code clarity and maintainability within the driver development process.