Re: Open source RISC-V 64bit w ECC RAM & PCIe this summer

On Fri, May 18, 2018 at 08:00:14PM +0200, Peter J. Philipp wrote:
>
> On Fri, May 18, 2018 at 03:31:51PM +0200, Karel Gardas wrote:
> > On Fri, 18 May 2018 02:30:13 -0400
> > Joseph Mayer <joseph.mayer@protonmail.com> wrote:
> >
> > > 4-core (5-core?) 1.5Ghz, 8GB DDR4 ECC RAM, two PCIe slots (one one-lane
> > > and one two-lane PCIe 2.0?), SATA, gigabit ethernet, microSD, HDMI,
> > > UART.
> > >
> > > https://www.sifive.com/products/hifive-unleashed/
> > >
> > > https://www.crowdsupply.com/microsemi/hifive-unleashed-expansion-board
> > >
> > > 21 more available in lower link, to the lower right.
> > >
> > > Great to see it happen finally.
> >
> > Indeed! RISC-V is making progress. For plain programmers this is probably not yet the right set of hardware as (1) system spec of RISC-V is not finalized yet (IIRC!) and (2) speed of the board CPU is probably lower than speed of Qemu emulation on high-speed xeon CPU.
> >
> > Also, w.r.t. price, it's a bit prohibitive indeed. IIRC promise was to have both boards on one board and for ~$1000 but I may be mistaken on this. Anyway, this is just first bird and I hope there will be more comming. Especially the promises of Esperanto Technologies look really promising. Future is open and interesting!
>
> Hi!

Hi Peter,

> RISCV really interests me! But the porting effort for this is probably
> above my head. In the past in risc-v threads I posted a riscv-qemu build
> procedure. I revisited this today and followed my own steps. After a bit
> of trying I finally got it compiled. I blogged about this experience:
>
> http://www.centroid.eu/blog/c?article=1526665139

Our emulators/qemu port has already supported RISC-V and it runs quite well.
If you have time maybe you can test the riscv-elf port?

https://marc.info/?l=openbsd-ports&m=152775211718628&w=2

Thanks.

> Realistically if you want to run BSD on RISCV you can do it through this
> way. You don't need to buy the hardware, unless you're seriously good with
> porting. My emulation was on FreeBSD, thanks to those folks for makign a
> bbl available (so I don't have to install FreeBSD and crosscompile).
>
> Best Regards,
> -peter
>
> PS: I've been following Talos 2 as well, and really like it but again, that's
> the same as with the RISCV issue, I lack the clue to port this. I'm going
> to learn about RISCV assembly first and then perhaps learn about POWER
> assembly, perhaps I can build a compiler. (I have access to POWER hardware,
> but will need to ask permission). Once that is done I'm ready to help
> with any porting effort *laugh*. That's if I don't give up along the way.