VxWorks bootloader & PowerQUICC II, Booting the kernel

[Ruedi.Hofer at ascom.ch]

Hi,

I try to boot the Linux kernel on a SBC8260 evaluation board using
the VxWorks bootloader.

In order to be able to load the whole kernel at address 0x900000,
I had to modify the ELF header of the zImage file. I basically changed
the length and the start address.

Question:

1. Why is the length in the ELF header wrong?

2. Why is the start address set to 0x400000 and not to 0x900000?


After loading the kernel, I try to run it:

Attaching network interface lo0... done.
Loading... 493164
entry = 0x900000
[VxWorks Boot]: g 900000
Starting at 0x900000...

program
Exception current instruction address: 0x00900000
Machine Status Register: 0x00089000
Condition Register: 0x24000082
Task: 0xfd37f8 "tBoot"

r0     =   e02684   sp     =   fd3498   r2     =        0   r3     =        0
r4     =  1000000   r5     =        0   r6     =        0   r7     =        0
r8     = 40000000   r9     =   e60000   r10    =   e5f1dc   r11    =   fd3498
r12    =        0   r13    =        0   r14    =        0   r15    =        0
r16    =        0   r17    =        0   r18    =        0   r19    =        0
r20    =        0   r21    =        0   r22    =        0   r23    =        0
r24    =        0   r25    =        0   r26    =        0   r27    =        0
r28    =   e010b8   r29    =   900000   r30    =        0   r31    =   fd3498
msr    =    89000   lr     =   e02690   ctr    =        0   pc     =   900000

[VxWorks Boot]:


.. but it crashes.

Any ideas? I'm using the kernel from HHL1.2, standard config but initrd disabled!

3. What am I doing wrong?

Thank you

Ruedi