Date: Thu, 12 Jul 2012 16:57:29 +0000 From: John Long <codeblue@inbox.lv> To: freebsd-mips@freebsd.org Subject: Re: Porting FreeBSD to Loongson 3A (RS780e) Message-ID: <20120712165729.GA16915@inbox.lv> In-Reply-To: <CAMwoQQ7eNW_QrQZH1Esd_TfR-C68TpUNRj5=pP=9gWOpE4kc5w@mail.gmail.com> References: <CAMwoQQ7NcM0S7LmHgOH2hhL9xPu-fTsZZxCRvJ9LLHZD-AjFhw@mail.gmail.com> <20120711123136.GA32221@inbox.lv> <CAMwoQQ7eNW_QrQZH1Esd_TfR-C68TpUNRj5=pP=9gWOpE4kc5w@mail.gmail.com>
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> I mean one-off for 3A, because
>
> No.1, loongson 3 is for server application, and is fit for "the Power to
> Serve"
Well given none of the Loongson chips are server chips and none of the
current builds (AFAIK) support ECC RAM, and since Lemote is selling a laptop
with the 3A (not a server) I don't think the 3A is a server chip. And I
really don't care, because the Loongson works fine for a home server, even
the lowly 2F.
> No.2, loongson 3a is mips64r2 compatible just like XLP832 and Octeon 6330
> which are already supported in FreeBSD/MIPS, and the chipset rs780e
> for 3a is a common
Ok, but OpenBSD and Debian already Loongson 2F so how hard can it be, given
the code already exists and in the case of OpenBSD comes with a good
license... and Loongson 2F is MIPS III compatible and runs 64 or 32 bit mode
executables. What does the "mips64r2" give you beyond MIPS III?
> hardware, we can easily porting freebsd to 3a.
> No.3, loongson 3a is the first cpu in Loongson 3, 3b is pin-to-pin
> compatible to 3a, if we got 3a brought up
> 3b is easy,
Support is already available in OpenBSD for 2E and 2F. Personally I am happy
with OpenBSD but I would also be happy to see as many OS as possible
supporting Loongson because I think MIPS is a good architecture and there
haven't been many general purpose machines made since SGI got out of the
workstation business. And Lemote is a good company...
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