Google Git
Sign in
opensecura / 3p / lowrisc / opentitan / 13ed3e95572168f7db0e3178d06a72e72ee5a745
commit13ed3e95572168f7db0e3178d06a72e72ee5a745[log] [tgz]
authorTimothy Chen <timothytim@google.com>Mon Nov 29 17:51:57 2021 -0800
committertjaychen <timothytim@google.com>Tue Nov 30 09:55:00 2021 -0800
tree190c31dca810d9a437ffb493278f15a897d38071
parent798ad2892fe5c83ca333a62128a7babc1999abbf [diff]
[flash_ctrl] First step fix for flash ECC

- Should address #9397
- Merge the separate flash data / metadata memories back into one
- Update the backdoor path to use the full 76_68 ECC scheme
- Update flash backdoor load to create the extra 4-bits of integrity
  ECC for the purposes of backdoor load.
- The flash routine is responsible for the 4-bit integrity ECC, while
  the mem_bkdr_util routine is responsible for the 8-bit reliability
  ECC

- In the future, the same routine that creates the 4-bit integrity
  ECC will also be responsible for scramble, the final backdoor load
  will only be aware of the 8-bit reliability ECC.

Signed-off-by: Timothy Chen <timothytim@google.com>
4 files changed
tree: 190c31dca810d9a437ffb493278f15a897d38071
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. rules/
  6. site/
  7. sw/
  8. test/
  9. third_party/
  10. util/
  11. .bazelignore
  12. .bazelrc
  13. .bazelversion
  14. .clang-format
  15. .dockerignore
  16. .flake8
  17. .gitignore
  18. .style.yapf
  19. .svlint.toml
  20. .svls.toml
  21. _index.md
  22. apt-requirements.txt
  23. azure-pipelines.yml
  24. BUILD
  25. check_tool_requirements.core
  26. CLA
  27. COMMITTERS
  28. CONTRIBUTING.md
  29. LICENSE
  30. meson.build
  31. meson_init.sh
  32. meson_options.txt
  33. python-requirements.txt
  34. README.md
  35. tool_requirements.py
  36. toolchain.txt
  37. topgen-reg-only.core
  38. topgen.core
  39. WORKSPACE
  40. yum-requirements.txt
README.md

OpenTitan

OpenTitan logo

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.

Documentation

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

How to contribute

Have a look at CONTRIBUTING and our documentation on project organization and processes for guidelines on how to contribute code to this repository.

Licensing

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