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HiFive Unmatched Software and Hardware

Talkat linux.conf.au 2021 · 2021-01-23..01-25· [linux-and-operating-systems]
slides:none on file

SiFive’s mini‑ITX RISC‑V desktop called HiFive Unmatched is a FU740-based board: quad RV64 cores (rv64gc feature set), bumped to 16GB soldered DDR4, NVMe M.2 and an PCIe x16 slot hosting an RX580 GPU. Boot uses OpenSBI + U‑Boot + Linux (dev kernel based on 5.10.9 with patches landing in 5.11/5.12); about 20–25 board patches exist (device tree, clocks, L2 and PCI drivers) and a Mesa fix was merged. It boots Debian natively, runs X with an observed ~43 FPS demo, but PCI/USB boot in U‑Boot and some firmware (USB hub) remain incomplete.

AI-written summary · about

  1. 0:00Intro
  2. 1:26HiFive Unmatched
  3. 1:59What is it
  4. 2:59Block Diagram
  5. 3:36New Processor
  6. 3:59Desktop Setup
  7. 5:00OpenSBI
  8. 8:05Open SBI
  9. 9:12Linux
  10. 10:03PCI Driver
  11. 11:08Device Tree
  12. 13:44Clock Driver
  13. 14:36L2 Cache Controller
  14. 15:35Bus Error Unit
  15. 15:57New Driver
  16. 16:50Page Fault Handler
  17. 17:14Running Debian
  18. 20:15Unmatched Hardware
  19. 21:17Demo
  20. 23:05Display Manager
  21. 26:47Favorite Use Case
  22. 28:00Why Use HiFive
  23. 28:48HiFive Laptops
  24. 30:34Uboot vs OpenSBI
  25. 32:30No single HiFive configuration
  26. 34:03HiFive is open
  27. 35:25Conclusion
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