From: minux <minux.ma@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] RISC-V (was: Plan9 on radpberry pi zero ?)
Date: Fri, 16 Aug 2019 18:54:51 -0400 [thread overview]
Message-ID: <CA+db=n3Y42OWHq2GLodo34VNMQut5UvRCy0bcpEO1cxpzPbd-Q@mail.gmail.com> (raw)
In-Reply-To: <16b84db8d961285c9000bca1d2d20f04@hamnavoe.com>
On Fri, Aug 16, 2019 at 9:56 AM Richard Miller <9fans@hamnavoe.com> wrote:
> > Do you mean something like BlackIce II (I'm under RV32I)?
>
> Yes, I have tried various soft cores on BlackIce (including
> one of my own design, for fun); also real silicon HiFive-1.
> So far none of these has had an MMU, which is required for
> Plan 9 (though not for Inferno).
Speaking of RISC-V with MMU for Plan 9, Kendryte K210 is a 28nm MCU
with dual core RV64GC and Linux capable MMU (!). It has 8MB onchip
SRAM and also NN, FFT accelerators.
I think that makes a good platform for Plan 9 on RISC-V, on a real silicon.
It also has a lot of really cheap evaluation board options available.
(The only other currently available RV64GC w/ MMU silicon is the
Hifive unleashed, which is very expensive.)
The only major problem of K210 is that its IO capabilities are fairly
limited and you need external Ethernet/Wifi solutions on SPI bus,
which is likely slow.
next prev parent reply other threads:[~2019-08-16 22:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-16 8:38 [9fans] Plan9 on radpberry pi zero ? Олег Бахарев
2019-08-16 10:02 ` Rodrigo G. López
2019-08-16 11:22 ` Олег Бахарев
2019-08-16 11:23 ` Richard Miller
2019-08-16 11:29 ` Олег Бахарев
2019-08-16 11:38 ` Richard Miller
2019-08-16 13:25 ` Олег Бахарев
2019-08-16 13:54 ` [9fans] RISC-V (was: Plan9 on radpberry pi zero ?) Richard Miller
2019-08-16 20:10 ` Олег Бахарев
2019-08-18 12:05 ` Richard Miller
2019-08-16 22:54 ` minux [this message]
2019-08-17 5:57 ` Олег Бахарев
2019-08-19 14:42 ` [9fans] Plan9 on radpberry pi zero ? Ethan Gardener
2019-08-19 15:29 ` Олег Бахарев
2019-08-20 13:51 ` raingloom
2019-08-21 4:38 ` Lucio De Re
2019-08-23 18:50 ` Ethan Gardener
2019-08-24 12:41 ` Chris McGee
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