Update lowrisc_ibex to lowRISC/ibex@43268b7

Update code from upstream repository
https://github.com/lowRISC/ibex.git to revision
43268b7604f40d4865a899988638d8c1b8e36dcb

* [examples] Add fstream header (Tobias Wölfel)
* Make VerilatorSimCtrl class a singleton (Philipp Wagner)
* ibex_simple_system: Remove unused includes (Philipp Wagner)
* [syn] Add initial Yosys synthesis script with example lib (Nils
  Graf)
* Reverse return code of simutil_verilator_set_mem() (Philipp Wagner)
* [DV] Add Verilator memory initialization from ELF (Tobias Wölfel)
* [rtl] Implement FENCE.I (Greg Chadwick)
* [make] Add CS Register testbench targets (Tobias Wölfel)
* Update gitignore to include simple system files (Tobias Wölfel)
* Update gitignore for tag file (Tobias Wölfel)
* Update google_riscv-dv to google/riscv-dv@d691906 (lowRISC/ibex#491)
  (udinator)
* [DV] streamline Makefile gen flow (lowRISC/ibex#488) (udinator)
* [DV] Update flow to match RISCV-DV changes (lowRISC/ibex#487)
  (udinator)
* Update google_riscv-dv to google/riscv-dv@39ca859 (lowRISC/ibex#486)
  (udinator)
* [DV] Test accesses to higher privileged CSRs (lowRISC/ibex#483)
  (udinator)
* [dv] Prepare CS registers TB for CI (Tom Roberts)

Signed-off-by: Philipp Wagner <phw@lowrisc.org>
57 files changed
tree: 5ce9c0ee34b5a9aefeaceeff6d16e1b9e4631b52
  1. .github/
  2. ci/
  3. doc/
  4. hw/
  5. site/
  6. sw/
  7. test/
  8. util/
  9. .clang-format
  10. .gitignore
  11. .style.yapf
  12. _index.md
  13. azure-pipelines.yml
  14. CLA
  15. COMMITTERS
  16. CONTRIBUTING.md
  17. LICENSE
  18. meson.build
  19. meson_init.sh
  20. meson_options.txt
  21. python-requirements.txt
  22. README.md
  23. toolchain.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 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 either access it online or build it locally by following the steps below.

  1. Ensure that you have the required Python modules installed (to be executed in the repository root):
$ sudo apt install curl python3 python3-pip
$ pip3 install --user -r python-requirements.txt
  1. Execute the build script:
$ ./util/build_docs.py --preview

This compiles the documentation into ./build/docs and starts a local server, which allows you to access the documentation at http://127.0.0.1:1313.

How to contribute

Have a look at CONTRIBUTING 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).