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List: etux
Subject: RE: PPC440GP Cross tool chain, Compiled Linux Kernel
From: Asa Angeles <aangeles9 () yahoo ! com>
Date: 2004-04-09 19:32:31
Message-ID: 20040409193231.53213.qmail () web41204 ! mail ! yahoo ! com
[Download RAW message or body]
Pease allow me to first thank everyone for all the quick responses. I'm glad
so many experts are ready and willing to help.
// Christopher Viamonte wrote:
//
// I was using a 2.4.20 kernel source, gcc 2.95.3 from the set for PPC in
// Karim's book.
Thank you, I will try this combination right away. Out of curiousity, did
you have to apply any patches to the kernel source, or to any GNU tool sources
for that matter?
--------------------------------------
// Frank Smith wrote:
//
// I know TimeSys has a free download of a Linux Evaluation Kit for
// the 440GP. Go to www.timesys.com and click on the Free Downloads
// link. You should find a TimeSys 2.4.18 Linux kernel in that
// package.
//
// This kit doesn't contain GNU development tools. You can purchase
// the 440GX SDK from TimeSys.
//
// If you're looking for free tools, check out the DENX tools.
Thanks. I've been toying around with the MonteVista Linux Preview Kit. I've
downloaded but not yet used the DENX tools (ELDK, right?).
--------------------------------------
// Wolfgang Denk wrote:
//
// I'm not sure what your primary target is: building the toolchain
// itself, or just get a working toolchain to get some real work done.
My goals are:
1) Build the tool chain itself from scratch.
2) Use that tool chain I just built to compile a vendor-independent
Linux kernel. By vendor-independent, I mean not have any corporate
names stamped on it, such as MonteVista or TimeSys. Why? For research
purposes, meaning learning how to create this environment without having
to download pre-built tools or kernels, even those packaged in
preview kits.
Don't get me wrong, I have nothing against Timesys or MonteVista. In fact
I learned a lot from using the MVista Linux Preview Kit for the Ebony.
3) Take that compiled kernel and boot it via NFS. At this point, I plan on
just using the ROM Monitor that came with the ebony as the boot loader,
although, for the same reasons given in (2) above, I may look into using
U-Boot. I appreciate all the work done on the U-boot project.
4) Learn as much as I can! :)
--------------------------------------
// Frank Smith wrote:
//
// I don't think the 440GP has Gig.... You're probably thinking of the
// 440GX. Gig on the GX is definitely a challenge.
You're right. The GX came out to support Gig-E, which the GP did not support.
Thanks again for all your help everybody. I'll post major breakthroughs and (likely)
roadblocks I encounter.
- Asa
--- Frank Smith <smith@amirix.com> wrote:
>
>
> On Fri, 9 Apr 2004, Viamonte, Christopher wrote:
>
> > Good luck on getting the gigabit ethernet of the 440GP functioning. I recall that's why it
> was abandoned at the time.
>
> I don't think the 440GP has Gig.... You're probably thinking of the 440GX.
> Gig on the GX is definitely a challenge.
>
> > Christopher Viamonte
> >
> > -----Original Message-----
> > From: etux-admin@embeddedtux.org [mailto:etux-admin@embeddedtux.org]On
> > Behalf Of Asa Angeles
> > Sent: Friday, April 09, 2004 11:50 AM
> > To: etux@embeddedtux.org
> > Cc: aangeles9@yahoo.com
> > Subject: PPC440GP Cross tool chain, Compiled Linux Kernel
> >
> >
> > Hi Karim,
> >
> > I have been trying to build a cross tool chain to
> > compile Linux and Linux apps for my IBM PowerPC 440GP
> > Ebony board. Specifically,
> >
> > Host: x86 running Red Hat 8.0
> > Target: PPC440GP Ebony reference board
> >
> >
> > I have been reading your book as well as the many bits
> > and pieces of information regarding this project
> > scattered all over the web. Basically, whenever I
> > encounter any kind of error, I "Google it", but
> > ultimately, I haven't been completely successful.
> >
> > I started with the PPC toolchain combination you
> > suggested in your book
> > _Building_Embedded_Linux_Systems_, using the linux
> > sources on penguinppc.org.
> >
> > When configuring the kernel to prepare the kernel
> > headers, I selected processor as 440, and (44x
> > options)-->(Machine Type)-->(Ebony).
> >
> > I know having exact error messages will help you help
> > me, but being a newbie, I have only taken screenshots
> > (don't know how to save the long list of output into a
> > file); I have also tried many different combinations
> > that led to many different errors which led to many
> > different frustration tantrums...
> >
> > I appreciate your text's intent to teach even the most
> > casual of Linux users how to build a cross tool chain.
> > Unfortunately, I haven't found PPC440GP references
> > quite as specific, complete, and straightforward as
> > your textbook example is for the arm target processor.
> > For instance, where exactly do I apply the
> > -msoft-float option to the C-flags when compiling
> > glibc versions prior to 2.3?
> >
> > The closest thing I found was on this thread:
> >
> > http://www.embeddedtux.org/pipermail/etux/2003-June/000075.html
> >
> > I sent an inquiry to Brian Auld, who started the
> > thread, but the email bounced back (outdated email?).
> > The message I sent him is attached.
> >
> > My main question, then, is what are the appropriate
> > combination (version) of GNU tools I should use for
> > this project?
> >
> > Also, regarding the Linux kernel for my target, should
> > I be able to compile it from "virgin" sources from
> > kernel.org, or do I _have_ to use sources modified for
> > the target?
> >
> > Have you had any success stories from anyone for this
> > particular target?
> >
> > I apologize again for not supplying nitty gritty
> > details such as particular build error messages, but I
> > feel like I need a fresh starting point.
> >
> > Thanks for your time.
> >
> > - Asa
> >
> >
> > Note: forwarded message attached.
> >
> >
> >
> >
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