[Virtex4] kernel2.6 or distribution

Stephen Neuendorffer stephen.neuendorffer at xilinx.com
Thu Feb 7 06:06:49 EST 2008

> -----Original Message-----
> From: linuxppc-embedded-bounces+stephen=neuendorffer.name at ozlabs.org [mailto:linuxppc-embedded-
> bounces+stephen=neuendorffer.name at ozlabs.org] On Behalf Of Desroches L.
> Sent: Tuesday, February 05, 2008 7:49 AM
> To: linuxppc-embedded at ozlabs.org
> Subject: [Virtex4] kernel2.6 or distribution
> Hi,
> Sorry for my English, I am a French student. For my internship, I have to
> implement Linux on a Virtex4.
> I know a few things about the Virtex4 because I am specialized in digital
> electronic (VHDL). I have to choose a solution for the Linux to implement.
> At this stage, I have some problems to determine the best solution probably
> because things are not clear for me whereas I have read a book about Linux
> embedded and seen a lot of websites.
> I have seen several distributions (maybe my vocable is false) from
> MontaVista, LynuxWorks and others. I have seen also kernel2.6 for Virtex4
> (http://git.xilinx.com/cgi-bin/gitweb.cgi?p=linux-2.6-xlnx.git;a=summary). I
> would like to understand the difference between these two things.

The distributions contain kernel code that is heavily tested and stable, in addition to a toolchain, debuggers, rootfilesystem, etc.  git.xilinx.com is just the kernel code, without anything else.  git.xilinx.com also contains new code that is under development, rather than primarily stable code.

> If I have understood MontaVista for example offers a solution with a C
> library and drivers, isn't it ? So is it a better solution than kernel2.6 ?

'better' for what?
development of new code? yes, most distributions use older kernels.
building a sytem? Maybe... it depends on what features you need.
learning? Maybe... It depends on what you already know and what you want to learn.

> I prefer to start with the kernel given by xilinx, it is an internship so
> the aim is to learn the more I can but I have to convince my tutor that it
> is a better solution than MontaVista, BlueCat or µC/OSII. Do you have some
> arguments ?
> Thanks for your help
> Best Regards
> ---
> Desroches Ludovic
> ESIEE engineer : http://www.esiee.fr
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