flipperdevices/u-boot
Mar 2025 – Apr 2025
2 Months active
Languages Used
C
Technical Skills
Device TreeEmbedded SystemsFirmware DevelopmentDriver DevelopmentSPI
Pawel Kochanowski
PROFILE
Pawel Kochanowski
During a two-month engagement, Piotr Kochanowski enhanced the flipperdevices/u-boot repository by focusing on EFI bootloader robustness and QSPI flash reliability. He implemented a configurable Flattened Device Tree (FDT) extra space in the EFI boot process, replacing a hardcoded value to prevent data corruption during firmware expansion scenarios. In addition, he addressed a driver-level timing issue in the QSPI path by adjusting the AHB read buffer configuration, ensuring reliable memory reads after device probing. Working primarily in C, Piotr applied his expertise in embedded systems, device tree management, and SPI driver development to deliver targeted, maintainable improvements with clear traceability.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
17
Activity Months2
Your Network
533 peopleSame Organization
@sii.pl1
Work History
April 2025
1 Commits
Apr 1, 2025April 2025: U-Boot stabilization focused on QSPI flash reliability. Implemented a targeted driver-level fix in the fsl_qspi path to prevent hangs after sf probe by ensuring AHB read buffer configuration is applied after LUT population. This change, captured in commit ddd6d6f8dbd940edf3b62e1b37bc86734aec236c, improves reliability of memory reads from QSPI during early boot and reduces post-probe read errors. No user-facing features added this month.
1 Commits
Apr 1, 2025April 2025: U-Boot stabilization focused on QSPI flash reliability. Implemented a targeted driver-level fix in the fsl_qspi path to prevent hangs after sf probe by ensuring AHB read buffer configuration is applied after LUT population. This change, captured in commit ddd6d6f8dbd940edf3b62e1b37bc86734aec236c, improves reliability of memory reads from QSPI during early boot and reduces post-probe read errors. No user-facing features added this month.
April 2025
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Key delivery focused on EFI boot robustness for flipperdevices/u-boot. Implemented a configurable FDT extra space in the EFI boot process to replace a hardcoded value, reducing the risk of data corruption when the Flattened Device Tree (FDT) needs to expand (e.g., for FMAN firmware). This change improves boot reliability and future-proofing of the EFI boot sequence. No major bugs fixed in this period.
March 2025
1 Commits • 1 Features
Mar 1, 2025March 2025: Key delivery focused on EFI boot robustness for flipperdevices/u-boot. Implemented a configurable FDT extra space in the EFI boot process to replace a hardcoded value, reducing the risk of data corruption when the Flattened Device Tree (FDT) needs to expand (e.g., for FMAN firmware). This change improves boot reliability and future-proofing of the EFI boot sequence. No major bugs fixed in this period.
Activity
Loading activity data...
Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance80.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C
Technical Skills
Device TreeDriver DevelopmentEmbedded SystemsFirmware DevelopmentSPI
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline