Problem in PCI initialization

[Prabhat_Singh]

Hi all

I am using MPC8248 based board which has got one PCI interface at 66 MHz .

 

I am not able to initialize PCI, I am really clueless and getting the following errors.

 

Can any one tell me what is wrong with this?

 

But I am initializing the pci in uboot also and there in uboot able to detect the network card, but while boot its give first time the machine check exception and then its reseting itself and then in second try it (uboot) is working fine. Do the register sets in uboot is again read by linux during linux PCI initialization?

 

Someone please help.

 

## Booting image at ffd00000 ...

   Image Name:   Linux-2.4.28-1.3.1-517

   Image Type:   PowerPC Linux Kernel Image (gzip compressed)

   Data Size:    643461 Bytes = 628.4 kB

   Load Address: 00000000

   Entry Point:  00000000

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

## Current stack ends at 0x01FAB390 => set upper limit to 0x00800000

No initrd

## Transferring control to Linux (at address 00000000) ...

Memory BAT mapping: BAT2=32Mb, BAT3=0Mb, residual: 0Mb

 

Linux version 2.4.28-1.3.1-517 (root at localhost.localdomain) (gcc version 3.3.4) #280 Tue Jun 13 16:17:02 IST 2006

 

On node 0 totalpages: 8192

 

zone(0): 8192 pages.

 

zone(1): 0 pages.

 

zone(2): 0 pages.

 

Kernel command line: console=ttyS0,115200 root=1f00

 

Calibrating delay loop... 266.24 BogoMIPS

 

Memory: 30712k available (1228k kernel code, 368k data, 64k init, 0k highmem)

 

Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)

 

Inode cache hash table entries: 2048 (order: 2, 16384 bytes)

 

Mount cache hash table entries: 512 (order: 0, 4096 bytes)

 

Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)

 

Page-cache hash table entries: 8192 (order: 3, 32768 bytes)

 

POSIX conformance testing by UNIFIX

 

PCI: Probing PCI hardware

 

Scanning bus 00

 

Oops: kernel access of bad area, sig: 11

 

NIP: C000C6DC XER: 00000000 LR: C0003FAC SP: C0183DC0 REGS: c0183d10 TRAP: 0300    Not tainted

 

MSR: 00001032 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11

 

DAR: 00000024, DSISR: 20000000

 

TASK = c023a000[14] '¢pÀ      }¬' Last syscall: -1 

 

last math 00000000 last altivec 00000000

 

GPR00: 00000000 C0183DC0 C023A000 C0183E80 00000024 20000000 C0170000 00000439 

 

GPR08: 00000000 C0183D20 00000000 00000000 22004084 B5FFFFFF 01FF8000 007FFC1E 

 

GPR16: 00000001 00000000 FFFFFFFF 007FFC00 00001032 00183E70 00000000 C0003FAC 

 

GPR24: 00000000 00030001 00000008 20000000 C0183E80 00000024 00000024 00000008 

 

Call backtrace: 

 

C0019384 C0003FAC 00000000 C0003FAC 00000000 C0003FAC C0184214 

 

C0003FAC C0184380 C0003FAC C01844F0 C0003FAC C0184664 C0003FAC 

 

C01847D0 C0003FAC C0184940 C0003FAC C0184AB4 C0003FAC C0184C24 

 

C0003FAC C0184D94 C0003FAC C0184F04 C0003FAC C0185074 C0003FAC 

 

00000000 C0003FAC 00000000 C0003FAC 00000000 

 

Kernel panic: Aiee, killing interrupt handler!

 

In interrupt handler - not syncing

 

 <0>Rebooting in 180 seconds..

 

 



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