[otp] Allow partitions to automatically determine size

- This is mainly done to support #6404
- Unallocated bits can optionally be allocated to other
  partitions.

Signed-off-by: Timothy Chen <timothytim@google.com>

[otp] slightly re-arrange code

- done to ensure size calculation is NOT done before
  validation.

Signed-off-by: Timothy Chen <timothytim@google.com>

[otp] Allow unused otp bits to be distributed

- Add a new attribute called "absorb" to partitions.
- The "absorb" attribute indicates a partition is willing
  to accept extra bits.

Signed-off-by: Timothy Chen <timothytim@google.com>

[otp] Do not enable absorb function for now

Signed-off-by: Timothy Chen <timothytim@google.com>
6 files changed
tree: ec3e1b77d0c86bd3746ded39924dbf0cecd1ae7c
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. site/
  6. sw/
  7. test/
  8. util/
  9. .clang-format
  10. .dockerignore
  11. .flake8
  12. .gitignore
  13. .style.yapf
  14. .svlint.toml
  15. .svls.toml
  16. _index.md
  17. apt-requirements.txt
  18. azure-pipelines.yml
  19. check_tool_requirements.core
  20. CLA
  21. COMMITTERS
  22. CONTRIBUTING.md
  23. LICENSE
  24. meson.build
  25. meson_init.sh
  26. meson_options.txt
  27. python-requirements.txt
  28. README.md
  29. tool_requirements.py
  30. toolchain.txt
  31. topgen-generator.core
  32. topgen-reg-only.core
  33. topgen.core
  34. 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).