Questions on the MPC8xx-2.3.10 realease.

Questions on the MPC8xx-2.3.10 realease.

[sébastien tadéoni]

Hi PPCpeople;

I worked recently on the mpc8xx-2.3.10 sources, and I
had less problem for compilation than with the 2.2.5
release, but it stays some 'undefined reference to
:kbd_pt_regs, fg_console, no_scroll.....'.

I think it is a configuration problem, but I don't
find any solution (and I wonder if I will find the
good configuration one day). I noticed like Brendan
that some parameter are configured even if you didn't
want.
I edited the autoconf.h but no really changes.

According to Dan, it seems to be tooo difficult to
cross compile on a host pentium machine (I begin to be
mainly agree with him),so I'm going to obtain a
powermac station.

However I would like to know before if someone has
already succeeded to build a zImage or zImage.initrd
configured for a MPC860 MBX board on a host pentium
(II 400) station?

Good Day.
Sébastien Tadéoni


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Re: Questions on the MPC8xx-2.3.10 realease.

[Scott Wood]

sébastien tadéoni wrote:
> 
> Hi PPCpeople;
> 
> I worked recently on the mpc8xx-2.3.10 sources, and I
> had less problem for compilation than with the 2.2.5
> release, but it stays some 'undefined reference to
> :kbd_pt_regs, fg_console, no_scroll.....'.
> 
> I think it is a configuration problem, but I don't
> find any solution (and I wonder if I will find the
> good configuration one day). I noticed like Brendan
> that some parameter are configured even if you didn't
> want.
> I edited the autoconf.h but no really changes.

I suggest tracking down the Makefile that is building the
unwanted feature and comment out the lines that build it.
It's not the cleanest solution, but it has worked for me.

> 
> According to Dan, it seems to be tooo difficult to
> cross compile on a host pentium machine (I begin to be
> mainly agree with him),so I'm going to obtain a
> powermac station.
> 
> However I would like to know before if someone has
> already succeeded to build a zImage or zImage.initrd
> configured for a MPC860 MBX board on a host pentium
> (II 400) station?

I have successfully built both a zImage and zImage.initrd 
for kernel 2.2.5 for an RPX-Lite (MPC850) board on a PII-350 
station running RedHat 5.2.  I used binutils-2.9.1.0.19a and
egcs-1.1.2 cross-compiler.

> 
> Good Day.
> Sébastien Tadéoni

-- 
+---------------------+----------------------+
|     Scott Wood      |   Systems  Engineer  |
|=====================+======================|
|           BroadLink Communications         |
+--------------------------------------------+

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

Re: Questions on the MPC8xx-2.3.10 realease.

[Brendan Simon]

sébastien tadéoni wrote:

> Hi PPCpeople;
>
> I worked recently on the mpc8xx-2.3.10 sources, and I
> had less problem for compilation than with the 2.2.5
> release, but it stays some 'undefined reference to
> :kbd_pt_regs, fg_console, no_scroll.....'.
>
> I think it is a configuration problem, but I don't
> find any solution (and I wonder if I will find the
> good configuration one day). I noticed like Brendan
> that some parameter are configured even if you didn't
> want.
> I edited the autoconf.h but no really changes.

Dan suggests (look at the mailing list archives) that linux-2.3.18.tgz
is what you should use instead of mpc8xx-2.3.10.tgz.  He also suggested
that he might remove the mpc8xx-2.3.10.tgz archive and I think that
would be a good idea if it has problems compiling or has some confusing
elements.  Since it is a bleeding edge release you must expect
problems.  I have reverted back to the embedded-2.2.5.tgz archive for my
port.  It compiles fine with the right options.  I would probably
recommend the 2.2.5 stuff for first timers (like me) as this is the most
stable version and there are apparently lots of MPC8xx boards using this
kernel.


> According to Dan, it seems to be tooo difficult to
> cross compile on a host pentium machine (I begin to be
> mainly agree with him),so I'm going to obtain a
> powermac station.
>
> However I would like to know before if someone has
> already succeeded to build a zImage or zImage.initrd
> configured for a MPC860 MBX board on a host pentium
> (II 400) station?

I have had no problems compiling the kernel with the x86->ppc
cross-compiler, though I would still love to have a PowerPC machine
instead of an x86.  The only problems I had have been choosing the right
configuration options.  Once you have sorted this out you should be
fine.  Have you installed a x86-ppc cross-compiler ?  I can help you if
you are having problems with it (building the compiler or using it to
compile the kernel).  Note that any questions on building an i86->ppc
cross-compiler should be sent to the crossgcc mailing list.  See
http://www.objsw.com for FAQ and subscription details.  I am using
egcs-1.1.2 and there is a prebuilt egcs-1.1.1 cross-compiler available
from the LinuxPPC web pages.

Brendan Simon.

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Re: Questions on the MPC8xx-2.3.10 realease.

[Marcus Sundberg]

sébastien tadéoni wrote:
> According to Dan, it seems to be tooo difficult to
> cross compile on a host pentium machine (I begin to be
> mainly agree with him),so I'm going to obtain a
> powermac station.
> 
> However I would like to know before if someone has
> already succeeded to build a zImage or zImage.initrd
> configured for a MPC860 MBX board on a host pentium
> (II 400) station?

I build all PPC-Linux stuff on a ix86 PII - kernels and user-space
stuff. Recently only for a custom board, but previously I've built
MBX, ADS and FADS kernels.

There's nothing special about cross-compiling from ix86-->PPC, except
the cross compiling itself. If you haven't built a cross-compiler
before I suggest you have a look at:
http://members.home.net/mmporter/linux/cross/
and
http://www.objsw.com/CrossGCC/

//Marcus
-- 
-------------------------------+------------------------------------
        Marcus Sundberg        | http://www.stacken.kth.se/~mackan/
 Royal Institute of Technology |       Phone: +46 707 295404
       Stockholm, Sweden       |   E-Mail: mackan@stacken.kth.se

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