Strange behavior when booting MPC8349E-mITX card.

[Benjamin Zores]

Hi,

I've noticed a strange behavior when booting an MPC8349E-mITX card
in PowerPC architecture (not ppc) on Linux 2.6.19.2.

It seems like early parts of the kernel featuring platform configuration are executed twice ? I don't know if it's intended or not but at least the card
works pretty well. I boots completely and there's no problem with that.
I just want to understand why it does such a thing.

I'm running a vanilla 2.6.19.2 kernel, ARCH=powerpc make mpc834x_itx_defconfig
and the vanilla DTS file for this card.

I don't have other platform to test this behavior.
Does anyone else noticed the same thing ?

Below is u-boot sequence + early kernel logs.

Ben

*********************

## Booting image at 00200000 ...
   Image Name:   Linux-2.6.19.2
   Created:      2007-04-03  13:34:56 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1434995 Bytes =  1.4 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
## Loading RAMDisk Image at 00500000 ...
   Image Name:   uboot ext2 ramdisk rootfs
   Created:      2006-10-19  21:17:10 UTC
   Image Type:   PowerPC Linux RAMDisk Image (gzip compressed)
   Data Size:    1911054 Bytes =  1.8 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Booting using flat device tree at 0x400000
   Loading Ramdisk to 0fda1000, end 0ff7390e ... OK
Using MPC834x ITX machine description
Linux version 2.6.19.2 (bezores at frilld0063506) (gcc version 4.1.1) #6 Tue Apr 3 15:34:49 C7
Found initrd at 0xcfda1000:0xcff7390e
setup_arch: bootmem
mpc834x_itx_setup_arch()
Found MPC83xx PCI host bridge at 0x00000000e0008500. Firmware bus number: 0->0
Found MPC83xx PCI host bridge at 0x00000000e0008600. Firmware bus number: 1->1
arch: exit
Zone PFN ranges:
  DMA             0 ->    65536
  Normal      65536 ->    65536
early_node_map[1] active PFN ranges
    0:        0 ->    65536
Built 1 zonelists.  Total pages: 65024
Kernel command line: root=/dev/ram console=ttyS0,115200
IPIC (128 IRQ sources) at fbffb700
PID hash table entries: 1024 (order: 10, 4096 bytes)
             
Using MPC834x ITX machine description
Linux version 2.6.19.2 (bezores at frilld0063506) (gcc version 4.1.1) #6 Tue Apr 3 15:34:49 C7
Found initrd at 0xcfda1000:0xcff7390e
Found MPC83xx PCI host bridge at 0x00000000e0008500. Firmware bus number: 0->0
Found MPC83xx PCI host bridge at 0x00000000e0008600. Firmware bus number: 1->1
Zone PFN ranges:
  DMA             0 ->    65536
  Normal      65536 ->    65536
early_node_map[1] active PFN ranges
    0:        0 ->    65536
Built 1 zonelists.  Total pages: 65024
Kernel command line: root=/dev/ram console=ttyS0,115200
IPIC (128 IRQ sources) at fbffb700
PID hash table entries: 1024 (order: 10, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 254592k/262144k available (2808k kernel code, 7240k reserved, 112k data, 91k bss, )
Mount-cache hash table entries: 512
checking if image is initramfs...it isn't (no cpio magic); looks like an initrd
Freeing initrd memory: 1866k freed
...