[dv/top] Regression triage

- fixes part of #14585
- in addition to the aon_timer related assertion failure, there is also
  one in usbdev.

- to fix these issues, update prim_reg_cdc_arb to only create a handshake
  event when the update actually contains a different value from the
  one currently sitting in the transit register.   This ensures that
  even if the instantiator ties a particular register's de to 1, it will
  not generate continuous update requests unless it actually has a
  different value.

Signed-off-by: Timothy Chen <timothytim@google.com>
1 file changed
tree: c328081b1acfd7fe971b411db6f1fdaf8889220d
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. release/
  6. rules/
  7. site/
  8. sw/
  9. third_party/
  10. util/
  11. .bazelignore
  12. .bazelrc
  13. .bazelversion
  14. .clang-format
  15. .dockerignore
  16. .flake8
  17. .gitattributes
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  19. .style.yapf
  20. .svlint.toml
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  22. _index.md
  23. apt-requirements.txt
  24. azure-pipelines.yml
  25. bazelisk.sh
  26. BUILD.bazel
  27. check_tool_requirements.core
  28. CLA
  29. COMMITTERS
  30. CONTRIBUTING.md
  31. LICENSE
  32. mypy.ini
  33. python-requirements.txt
  34. README.md
  35. tool_requirements.py
  36. topgen-reg-only.core
  37. topgen.core
  38. WORKSPACE
  39. yum-requirements.txt
README.md

OpenTitan

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About the project

OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.

About this repository

This repository contains hardware, software and utilities written as part of the OpenTitan project. It is structured as monolithic repository, or “monorepo”, where all components live in one repository. It exists to enable collaboration across partners participating in the OpenTitan project.

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The project contains comprehensive documentation of all IPs and tools. You can access it online at docs.opentitan.org.

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Unless otherwise noted, everything in this repository is covered by the Apache License, Version 2.0 (see LICENSE for full text).