From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by oss.sgi.com id ; Thu, 15 Feb 2001 08:16:38 -0800 Received: from [194.90.113.98] ([194.90.113.98]:3335 "EHLO yes.home.krftech.com") by oss.sgi.com with ESMTP id ; Thu, 15 Feb 2001 08:16:19 -0800 Received: from jungo.com (michaels@kobie.home.krftech.com [199.204.71.69]) by yes.home.krftech.com (8.8.7/8.8.7) with ESMTP id TAA04117; Thu, 15 Feb 2001 19:20:47 +0200 From: michaels@jungo.com Message-ID: <3A8C0079.9B8DDAA@jungo.com> Date: Thu, 15 Feb 2001 18:14:49 +0200 Organization: Jungo LTD X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.2.17-21mdk i686) X-Accept-Language: en MIME-Version: 1.0 To: Paul Kleist CC: "linux-mips@oss.sgi.com" Subject: Re: MIPS R5Kc core configuration References: <3A8ABA30.1D42A067@jungo.com> <3A8BCC28.32E9E240@mips.com> Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Sender: owner-linux-mips@oss.sgi.com Precedence: bulk Return-Path: X-Orcpt: rfc822;linux-mips-outgoing Paul, What I meant is: when configuring linux for some specific MIPS CPU, right now there is no MIPS64 CPU option (like there was MIPS32 for Atlas), therefore I don't know what CPU configuration may be used for 5Kc core. Do we have an FPU? What are the permitted CP register operations, and how do we set up the kernel for 64 bit architecture. I guess there were another 64 bit CPUs that are configured like the LJA0004 MIPS-5KC that is sitting on our Core board. Are you suggesting that QED's 5261 is a close shot? Thanks, Michael. Paul Kleist wrote: > > Hi Michael, > > what do you mean by the phrase 'that can be used for kernel > configuration' ? > > You can look at eg. QED or NEC websites for other 64 bit mips > processors, but they > are not nescessarily identical implementations so do not be sure that > you can use > another processor instead of 5Kc which is a MIPS64 implementation. > > The QED5261 is *close*, and we do have 200/100 MHz boards (core/bus > freq) that can run > on Atlas/Malta, and this cpuboard run our Linux also. > > Regards > Paul Kleist > > michaels@jungo.com wrote: > > > > Hello, > > > > I have recently started to work with the new R5Kc core from MIPS. > > It is defined to be 64 Bit. I wonder if you know of other processors > > that are also 64 > > bits that can be safely used for kernel configuration (R10000 maybe?). > > -- > _ _ ____ ___ Paul Kleist Mailto:paulk@mips.com > |\ /|||___)(___ MIPS Denmark Direct: +45 44 86 55 43 > | \/ ||| ____) Lautrupvang 4 B Switch: +45 44 86 55 55 > TECHNOLOGIES DK-2750 Ballerup Fax...: +45 44 86 55 56 > Denmark http://www.mips.com/ -- Sincerely yours, Michael Shmulevich ______________________________________ Software Developer Jungo - R&D email: michaels@jungo.com web: http://www.jungo.com Phone: 1-877-514-0537(USA) +972-9-8859365(Worldwide) ext. 233 Fax: 1-877-514-0538(USA) +972-9-8859366(Worldwide)