Tag: SiFive

SiFive open sources RISC-V Freedom U540-C000’s Bootloader

~ hucktech ~ Leave a comment

It is good to see SiFive open-source their stack. RISC-V is Free as in Beer, not Freedom, so an implementor may make a closed-source implementation, and we need to encourage implementors to make open-source implementations. 😉

https://www.sifive.com/blog/2018/09/06/an-open-source-release-of-the-freedom-u540-c000s-bootloader/

SiFive: DDR controller configuration register values unleashed!

~ hucktech ~ Leave a comment

Re: https://firmwaresecurity.com/2018/06/25/risc-v-implementations-filled-with-blobs/

https://forums.sifive.com/t/ddr-controller-configuration-register-values-for-hifive-unleashed/1334/8

Comment from SiFive:

SiFive is committed to supporting the open-source community. We are pleased to report that after discussions with our IP partners, we are now able to make available all the source code required to initialize the HiFive Unleashed board. The board’s boot sequence is described in the manual. The assembly code in the initial reset ROM is listed in the manual Chapter 6.1 “Reset Vector”. The firmware in the ZSBL mask ROM is directly readable by software on the chip, and we will be making the full source code available shortly. The source code for FSBL including the DDR initialization will also be available shortly. We can attest there is no other firmware run by the system during boot.

SiFive appoints new CEO

~ hucktech ~ Leave a comment

SiFive Appoints Naveed Sherwani as CEO

SAN FRANCISCO – August 15, 2017 – SiFive, the first fabless provider of customized, open-source-enabled semiconductors, today announced that industry veteran Naveed Sherwani has joined the company as CEO to lead it through its next phase of growth. Stefan Dyckerhoff, who had held the top spot at the company since its inception, will remain a member of the SiFive board of directors. “Naveed brings a lifetime of experience not only in the semiconductor and open source sectors, but also in growing successful startups into industry leaders,” Dyckerhoff said. “SiFive has achieved significant industry milestones since its founding, and we continue to drive innovations that are leveling the playing field for those priced out of the traditional silicon market. We are excited to have Naveed join the team, and look forward to further growth under his leadership.” Sherwani joins SiFive with more than 25 years of experience in the industry at companies including Intel, Brite Semiconductor and Open Silicon. Over the course of his career, Sherwani has been involved in the development of more than 300 chips, and, through his work as founder and CEO of Open Silicon, was instrumental in leading the development of ASIC technologies, which offered lower cost alternatives to traditional, less reliable legacy offerings.[…]

https://www.sifive.com/posts/2017/08/15/sifive-appoints-naveed-sherwani-as-ceo/

https://riscv.org/

HiFive1

SiFive Coreplex IP for RISC-V

~ hucktech ~ Leave a comment

RISC-V is a free and open instruction set architecture based on modern design techniques and decades of computer architecture research. With over 60 member companies and a robust software ecosystem, RISC-V is set to be the standard architecture in all modern computing devices, from 32-bit embedded microcontrollers to 64-bit application processors and datacenter accelerators and beyond. SiFive Coreplex IP are the most widely deployed RISC-V cores in the world and are the lowest risk, easiest path to RISC-V. SiFive Coreplex IP are fully synthesizable and verified soft IP implementations that scale across multiple design nodes, making them ideal for your next SoC design.

https://www.sifive.com/products/coreplex-risc-v-ip/

 

Another RISC-V project

~ hucktech ~ Leave a comment

The other week I pointed out a RISC-V project on CrowdSupply:

https://firmwaresecurity.com/2016/11/23/onchip-has-risc-v-on-crowdsupply/

There’s another one, as Jeremy Bennett Embecosm announced on the Open Source Hardware User Group list:

Another RISC-V project

Hot on the heels OnChip and Open-V of comes

  https://www.crowdsupply.com/sifive/hifive1

I note they have already met their target on the first day (it wasn’t a very hard target).

More info:
http://oshug.org/cgi-bin/mailman/listinfo/oshug

https://github.com/sifive/freedom

https://www.sifive.com/