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Re: [PATCH]: Add R14K Support (generic)

To: Kumba <kumba@gentoo.org>
Subject: Re: [PATCH]: Add R14K Support (generic)
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 24 Jan 2006 13:51:01 +0000
Cc: linux-mips@linux-mips.org
In-reply-to: <43D62D06.8040602@gentoo.org>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20060123230424.GA31197@toucan.gentoo.org> <20060124131741.GA3459@linux-mips.org> <43D62D06.8040602@gentoo.org>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.4.2.1i
On Tue, Jan 24, 2006 at 08:35:02AM -0500, Kumba wrote:

> >Afaik it's not as trivial as this.  The R14000 has some changes to the FPU
> >which seem to require handling.  I unfortunately know no details.
> 
> My guess is a lot of the R14K and R16K details are still protected.  I 
> can't find any processor manuals on them.  Hopefully, I'll be able to get a 
> hold of an R14K eventually to figure out just how well this patch works 
> (maybe it'll reveal enough to see what the FPU does differently).  If only 
> the prices on eVay drop...

R10000 and R12000 were available on the market.  R14000 was probably more
of a custom chip even though it was also being used in HP systems, I think
that series was called Himalaya.  Probably just nobody bother going through
the necessary documentation etc. process to make it a "real" product.

  Ralf

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