Zephyr Porting Efforts in High Performance SoCs
Talkat Open Source Summit Japan + AI_dev: Open Source GenAI & ML Summit + Automotive Linux Summit 2025 · 2025-12-08..12-10·
summary
Ports Zephyr to ARM aarch64 SoCs by reusing an existing TF‑A/U‑Boot boot path and PSCI power control to avoid redoing early init, builds Zephyr with west and loads via TFTP to a discontinued ABQ‑96 board, runs a hello_world SMP image, and exercises Zephyr tests. Finds concrete failures: ARM64 MMU test needs translation table entries increased from 8 to 16, SMP and interrupt hierarchy conflicts with TF‑A, and IT/GIC range limits; fixes require adding MMIO mapping and device tree redesign. 68 drivers with MMIO changes and west.yaml manifest usage are key facts.
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chapters (11)
- 0:00Zephyr porting intro
- 1:28Why port Zephyr to high perf SoCs
- 4:22Porting challenges on ARM64 SoCs
- 7:20Zephyr porting via Linux boot
- 9:50Preparing Zephyr for ARM64 SoC
- 13:29Building Zephyr on ARM64 SoC
- 15:44Testing Zephyr on ARM64 SoC
- 18:41Improving ARM64 SoC drivers
- 21:03Fixing device tree issues
- 25:33Porting effort summary
- 26:36Q&A
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