From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Raghavan" Subject: Re: Porting ELKS Date: Mon, 21 Jul 2003 10:39:27 +0530 Sender: linux-8086-owner@vger.kernel.org Message-ID: <008f01c34f46$4236f9b0$8c06770a@wipro.com> References: Reply-To: "Raghavan" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: Content-Type: text/plain; charset="us-ascii" To: Syed Faisal Akber Cc: Linux-8086@Vger.Kernel.Org Syed et al, Thanks for the Info. Let me explain the background a little bit as to why I am exploring this. It will give you a better picture. I wanted to have a few applications on Blackfin DSP. Let's say like web server, rtsp server etc... I pick up any free application on the Web , they all run on POSIX compliant OS like LINUX. Porting a full fledged LINUX is really a tough job ( ?) , so I thought ELKS was a good option and started looking at it. ucLinux seemed a good Idea, I checked with ADI, the answer I got is "The ucLinux port is on the way , but it could take a while .." I need to have a OS on the BLACKFIN quickly ..so that I get the applications on it ..and hence I was thinking ELKS ...; Are you saying ELKS would be inefficient on the DSP Processor ..or is it that porting ELKS on Blackfin be like a total rewrite ? Is eCOS port feasible like say in a 3-4 months time frame ? Is eCOS POSIX compliant ..so that we can get any application compile & run on it easily ? Bye, Raghavan V ----- Original Message ----- From: "Syed Faisal Akber" To: "Raghavan" Cc: Sent: Monday, July 21, 2003 1:12 AM Subject: Re: Porting ELKS > Hi Raghavan, > > I think that porting ELKS to the Blackfin is a waste of time. ELKS is > written to take advantage of 8086 processor quirks. The Blackfin (or MSA) > architecture is quite a bit different. > > (1) The Blackfin does not have an TLB based MMU. You cannot use Linux, > but you can use uClinux. ELKS is similar to uClinux but the memory models > are very different. > > (2) You may want to start using uClinux. There already exists a port for > Blackfin. You will probably have to contact Analog Devices to get more > information regarding this. > > Regards, > Faisal > > On Fri, 18 Jul 2003, Raghavan wrote: > > > Hi, > > > > I am intending to port ELKS on to Analog Devices's Blackfin DSP Processor. > > > > I am having a couple of questions > > > > (1) Does ELKS take advantage of the MMU facility of the x86 Systems ?. I ask > > this because the Blackfin does not. > > > > (2) What would be a good strategy to start the porting exercise ? Any > > previous porting lessons would help. > > > > Bye, > > Raghavan V > > > > > > - > > To unsubscribe from this list: send the line "unsubscribe linux-8086" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > >