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lowRISC

From Wikipedia, the free encyclopedia

lowRISC C.I.C.
Company typeCommunity Interest Company
FoundedOctober 20, 2014; 9 years ago (2014-10-20) in Cambridge, UK
FoundersGavin Ferris, Alex Bradbury, Robert Mullins
Headquarters
Cambridge
,
United Kingdom
ProductsIbex, OpenTitan
Websitelowrisc.org

lowRISC C.I.C. is a not-for-profit company headquartered in Cambridge, UK. It uses collaborative engineering to develop and maintain open source silicon designs and tools.[1] lowRISC is active in RISC-V-related open source hardware and software development and stewards the OpenTitan project.

YouTube Encyclopedic

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Transcription

Projects

OpenTitan

OpenTitan is the first open source silicon Root of Trust (RoT) project.[2] It is designed to be integrated into data center servers, storage devices, peripherals and other hardware.[3] OpenTitan is under the stewardship of lowRISC and collaboratively developed by Google, ETH Zurich, Nuvoton, G+D Mobile Security, Seagate, and Western Digital.[4] The OpenTitan source code is available on GitHub, released under the permissive Apache 2 license.

Ibex CPU core

Ibex is an embedded open source 32-bit in-order RISC-V CPU core, which has been taped out multiple times.[5] Ibex is used in the OpenTitan chip. Development on Ibex started in 2015 under the name "Zero-riscy" and "Micro-riscy" at the ETH Zurich and University of Bologna, where it was part of the PULP platform. In December 2018 lowRISC took over the development.[6] Luca Benini of the ETH Zurich sits on lowRISC' board.

Prototype 64-bit SoC design

The lowRISC prototype 64-bit SoC design is an open source Linux-capable 64-bit RISC-V SoC design. A first version preview release of the source code was made available in April 2015.[7] Since then features were added, such as support for tagged memory and "minion cores", small CPU cores which are dedicated to I/O tasks.[8] The latest version 0.6 was released in November 2018,[9] and is available to download and try out on an FPGA.

Other projects

lowRISC initiated and led the upstreaming of the RISC-V LLVM backend, where Alex Bradbury is code owner.[10]

Governance

Board of directors

Additionally, Mark Hayter of Google sits on the board as an observer.[1]

History

lowRISC was spun out of the University of Cambridge Computer Lab in 2014 by Alex Bradbury, Robert Mullins, and Gavin Ferris[1] with the goal of creating a fully open source SoC and low-cost development board.[11][12]

In 2015 lowRISC became one of the founding members of the RISC-V Foundation (today: RISC-V International).[13]

Since 2018 lowRISC has been focusing on collaborative engineering with partner organizations. In 2019 the OpenTitan project, stewarded by lowRISC, was announced.[14]

References

  1. ^ a b c "About lowRISC". lowrisc.org. Retrieved 24 March 2021.
  2. ^ Anderson, Tim (5 Nov 2019). "Cambridge boffins and Google unveil open-source OpenTitan chip – because you never know who you can trust". The Register. Retrieved 24 March 2021.
  3. ^ "Open source silicon Root of Trust". opentitan.org.
  4. ^ "OpenTitan partners". opentitan.org. Retrieved 24 March 2021.
  5. ^ "Ibex: An embedded 32 bit RISC-V CPU core". Retrieved 24 March 2021.
  6. ^ "Ibex Reference Guide: History". Retrieved 24 March 2021.
  7. ^ "lowRISC tagged memory preview release". lowrisc.org. April 13, 2015. Retrieved 24 March 2021.
  8. ^ "Overview of the minion infrastructure". lowrisc.org. Retrieved 24 March 2021.
  9. ^ "lowRISC 0-6 milestone release". lowrisc.org. 2018-11-12. Retrieved 24 March 2021.
  10. ^ Bradbury, Alex. "The RISC-V LLVM backend in Clang/LLVM 9.0". lowrisc.org. Retrieved 24 March 2021.
  11. ^ "Free Core, Some Assembly Required". EETimes. 2016-01-07. Retrieved 24 March 2021.
  12. ^ "LowRISC SoC - 1st RISC-V Workshop". YouTube.
  13. ^ "Founding Members". riscv.org. Retrieved 24 March 2021.
  14. ^ Bradbury, Alex (2019-11-05). "Announcing OpenTitan, the First Transparent Silicon Root of Trust".

External links

This page was last edited on 12 March 2024, at 11:51
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