Linux on PowerCore CPCI-3750

Linux on PowerCore CPCI-3750

[luca gambazzi]

hi

i'm swiss student, i'm trying to crosscompile a linux kernel for a Force
Computers PowerCore CPCI-3750.

i've found an old image and works fine but when i try to complile myself
a new kernel image the PowerBoot (bios on the card) give me an error

Starting image at address 0x00010000...


exception occured: 0x700
SRR0 = 0x00000000
SRR1 = 0x00080000
MSR  = 0x00000030
HID0 = 0x8010008D
HID1 = 0x70000000
L2CR = 0x00000016
*** Program Exception ***

so my kernel image is wrong,... to create the kernel image (v2.5 patched
for ppc) i've used the make bzImage and then with powerpc-linux-objcopy
i've changed the ELF32bit file in a binary data file.
what's worng? can somebody tell me where fine documentation?

thanks a lot
luca gambazzi


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Re: Linux on PowerCore CPCI-3750

[Tom Rini]

On Thu, Mar 27, 2003 at 02:02:28PM +0100, luca gambazzi wrote:

> i'm swiss student, i'm trying to crosscompile a linux kernel for a Force
> Computers PowerCore CPCI-3750.
[snip]
> so my kernel image is wrong,... to create the kernel image (v2.5 patched
> for ppc) i've used the make bzImage and then with powerpc-linux-objcopy
> i've changed the ELF32bit file in a binary data file.
> what's worng? can somebody tell me where fine documentation?

You should probably be using the 'linuxppc_2_4_devel' tree, see
http://penguinppc.org/dev/kernel.shtml.  Second, 'bzImage' is an alias
for 'zImage' on PPC.  Finally, 'arch/ppc/boot/images/zImage.pcore'
should work as-is.  This is true for 2.5 as well, so you can test with
your current kernel tree and just boot that file as is

--
Tom Rini
http://gate.crashing.org/~trini/

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Re: Linux on PowerCore CPCI-3750

[Wolfgang Grandegger]

On 03/27/2003 07:48 PM Tom Rini wrote:
> On Thu, Mar 27, 2003 at 02:02:28PM +0100, luca gambazzi wrote:
>
>> i'm swiss student, i'm trying to crosscompile a linux kernel for a Force
>> Computers PowerCore CPCI-3750.
> [snip]
>> so my kernel image is wrong,... to create the kernel image (v2.5 patched
>> for ppc) i've used the make bzImage and then with powerpc-linux-objcopy
>> i've changed the ELF32bit file in a binary data file.
>> what's worng? can somebody tell me where fine documentation?
>
> You should probably be using the 'linuxppc_2_4_devel' tree, see
> http://penguinppc.org/dev/kernel.shtml.  Second, 'bzImage' is an alias

I want to make a comment here. On the web page you mention there is no
clear indication on what kernel should be used for PowerCore CPCI-3750
or other embedded platforms especially it does not explain the
difference between the "linuxppc_2_4" and "linuxppc_2_4_devel" tree:

  linuxppc_2_4        stable branch
  linuxppc_2_4_devel  stable branch testing tree

A bit more explanation would be useful.

Wolfgang.


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