We’re excited to announce a new patch series that brings mouse support to U-Boot! This long-awaited feature resurrects some old code that was originally developed for Nuklear integration and provides a comprehensive mouse input framework. What’s New The 17-patch series (1,374 lines added across 44 files) introduces a simple mouse subsystem including: Key Features Universal…
The world of firmware development is evolving rapidly. Modern SoCs are increasingly complex, boot protocols are multiplying, and new programming languages like Rust and Zig are gaining traction in systems programming. Meanwhile, U-Boot has accumulated over two decades of battle-tested functionality supporting 1300+ boards, a comprehensive driver model, extensive filesystem support, and a wealth of…
The U-Boot EFI application is a powerful tool, allowing U-Boot to run on top of existing UEFI firmware. This is increasingly important as we see new platforms, especially in the ARM64 world, shipping with complex, ACPI-based firmware. A prime example is the recent wave of laptops powered by the Qualcomm X-Elite, which rely on this…
Have you ever run the help or env print command and watched a torrent of text scroll past, faster than you could read it? We’ve all been there. Important information disappears off the top of the screen before we have a chance to digest it. Well, those days are over! Thanks to a new patch…
Managing patch series can be one of the most time-consuming aspects of contributing to large open-source projects like U-Boot and Linux. While patman has long been a powerful tool for creating, checking, and sending patches, the relatively new patman series feature takes workflow management to the next level by providing lifecycle management for series, with…
If you are interested in watching the development of U-Boot Concept, consider joining the mailing list. You can do this in your web browser here, or send an email with ‘subscribe’ in the subject to concept-join@u-boot.org. If you are able to review patches or contribute your own, please do! Also the patchwork server is up and…
The EFI app on x86 has supported booting for a while. With a recent 19-part series, the EFI app can now also boot an OS on ARM. This uses standard boot and the standard extlinux boot flow. The Core Fixes To successfully hand off control from the EFI environment to a new operating system, a…
A robust and efficient test suite is the backbone of a healthy open-source project. It gives developers the confidence to add new features and refactor code without causing regressions. Recently, we’ve merged a significant 19-patch series that begins a much-needed cleanup of our Python test infrastructure, paving the way for faster, more reliable, and more…
We’ve just merged a fix in Concept for a particularly tricky memory corruption bug in the U-Boot sandbox environment. This bug was difficult to track down, so we wanted to share the story of the investigation and the solution. The Symptom: Mysterious Heap Corruption The problem first appeared as random and hard-to-reproduce memory corruption in…
For a while now, U-Boot’s EFI application (efi_app) has been a handy tool, but with one noticeable difference between architectures: x86 could show things on the screen, while ARM was stuck in the dark. If you wanted a splash screen or a graphical boot menu in your ARM EFI app, you were out of luck….
