linux-mips
[Top] [All Lists]

Re: Does linux support for microprocessor without MMU?

To: Joe deBlaquiere <jadb@redhat.com>
Subject: Re: Does linux support for microprocessor without MMU?
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Thu, 22 Feb 2001 07:53:24 +0100 (MET)
Cc: Crossfire <xfire@xware.cx>, kjlin <kj.lin@viditec-netmedia.com.tw>, linux-mips@oss.sgi.com
In-reply-to: <3A949279.5020707@redhat.com>
Sender: owner-linux-mips@oss.sgi.com
On Wed, 21 Feb 2001, Joe deBlaquiere wrote:
> Crossfire wrote:
> > kjlin was once rumoured to have said:
> >> I got an embedded MIPS board recently.
> >> It has the following features:
> >> - CPU implements a five-stage pipeline with performance similar to the 
> >> MIPS R3000 pipeline.
> >> - MIPS32 compatible instruction set
> >> - R4000 style privileged resource architecture.
> >> - Without MMU.
> >> 
> >> I am estimating the possibility of porting linux on it.
> >> Can Linux/MIPS 2.2 or 2.4 support for such a board which without MMU ?
> >> Because i consider it is the most difficult part in the porting process.
> >> Am i right?
> > 
> > the Standard Linux kernels all require an MMU.  However, there is a
> > version of the kernel known as "ucLinux" (Microcontroller Linux) which
> > will run on CPUs without MMU.
> > 
> > I don't know if ucLinux has a MIPS target yet.
> 
> There isn't (yet) support for MIPS on uClinux.

But it can't be that hard to add support for it...

Gr{oetje,eeting}s,

                                                Geert

--
Geert Uytterhoeven ------------- Sony Software Development Center Europe (SDCE)
Geert.Uytterhoeven@sonycom.com ------------------- Sint-Stevens-Woluwestraat 55
Voice +32-2-7248626 Fax +32-2-7262686 ---------------- B-1130 Brussels, Belgium


<Prev in Thread] Current Thread [Next in Thread>