Case study

BCM5719 Firmware Reimplementation: rebuilding network-card firmware

BCM5719 Firmware Reimplementation rebuilds firmware for the Broadcom BCM5719 network controller from the Ortega specification. Its source includes MIPS boot stages, an APE NC-SI handler, NVRAM and MII libraries, plus flash and register tools. The author reports testing on Talos II and Blackbird and says the firmware handles network traffic over NC-SI.

Targets: Firmware
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-08

Stars: 87
Last commit: 2025-01-27
Language: C
License (GitHub): BSD-3-Clause

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Targets BCM5719 cards; the author reports testing on Talos II and Blackbird.
Prerequisites: Building requires a customized LLVM/Clang compiler, CMake 3.5.1 or later, and Linux utilities.
Limits: Firmware remains in development; stage testing is minimal and tests are yet to be written.
License: BSD-3-Clause licence.

Cite

BibTeX

@misc{bcm5719-firmware-reimplementation-case,
  title = {{BCM5719 Firmware Reimplementation: rebuilding network-card firmware}},
  howpublished = {\url{https://github.com/meklort/bcm5719-fw}},
  url = {https://github.com/meklort/bcm5719-fw},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/bcm5719-firmware-reimplementation-case/}}
}

Plain text

BCM5719 Firmware Reimplementation: rebuilding network-card firmware. https://github.com/meklort/bcm5719-fw (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/bcm5719-firmware-reimplementation-case/

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About this entry

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Primary sources

README.md GitHub · meklort/bcm5719-fw · Revision 3bc3260