The Exynos 3830 uses a pinctrl driver similar to the exynos5420 but with fewer banks. However, the is broken. The EINT (External Interrupt) handling on this chip is notoriously glitchy.
Big updates for the Exynos 3830! While Samsung's ARM64 chips have historically been tricky to mainline, we’re seeing significant movement for the Exynos 850 (3830) Recent work includes: Initial Support: The SoC is now listed among the ARM64 Exynos chips with at least partial support in mainline Linux. Kernel Progress: exynos 3830 driver work
One of the biggest catalysts for driver work was the creation of the . This is a single-board computer (SBC) compatible with the 96Boards CE Extended standard. It runs on the Exynos 850 processor and includes 4GB of RAM and 64GB of storage. The Exynos 3830 uses a pinctrl driver similar
I realized the 3830 uses a multiplexer shift that isn't documented in the generic Samsung code. The mux_sel registers are offset by 0x20 compared to the Exynos 5250. Once I patched that, the serial console stayed alive. Big updates for the Exynos 3830
The Exynos 3830 has carved out a fascinating niche in the world of mobile processors—not necessarily for its raw power, but for the unique challenges and opportunities it has presented to Linux kernel developers, open-source enthusiasts, and the repair community alike. While on paper it might appear as a modest, entry-level chipset, the story behind its driver development is a compelling case study in collaborative engineering, the complexities of hardware naming conventions, and the relentless pursuit of mainlining.
Samsung traditionally builds its downstream mobile software on top of Long-Term Support (LTS) Android Common Kernels. The communication stack is divided into distinct layers:
The "3830" is positioned to handle daily tasks, basic AI photography, and stable 5G connectivity without draining the battery.