Problems porting to a custom PPC405GPr board using a vanilla 2.6.10 kernel

Niklaus Giger niklaus.giger at
Mon Feb 28 02:10:30 EST 2005

Am Samstag, 26. Februar 2005 23.28 schrieb Niklaus Giger:
> Hi
> I would like to port Linux to a custom PPC405GPr board. Its hardware runs
> vxWorks fine for more than a year.
I made some more progress. After adding 3 lines for MMU support with the BDI
I can debug the startup up to kernel_start using BDI. 

Afterwards my console changes the baudrate for still unknown reasons.

Analysing the __log_buf I get the following output
(gdb) x/s &__log_buf
0xc01accfc <ratelimit_lock.9>:   "<4>Linux version 2.6.10 
(niklaus at (gcc-Version 3.3.5 (Debian 1:3.3.5-8)) #15 Sun 
Feb 27 14:44:27 CET 2005\n<7>On node 0 totalpages: 8240\n<7>  DMA zone: 8240 
pages, LIFO batch:2\n<7>"...
(gdb) x
0xc01acdc4 <ratelimit_lock.9+200>:       "  Normal zone: 0 pages, LIFO 
batch:1\n<7>  HighMem zone: 0 pages, LIFO batch:1\n<4>Built 1 
zonelists\n<4>Kernel command line: ip=\n<4>PID hash table entries: 
256 (order:8, 4096 bytes)\n"
(gdb) x
0xc01ace84 <ratelimit_lock.9+392>:       ""

>My board has no RTC. Is this a problem? 
>Should I start with another kernel? Can anybody point me to a known good 
>kernel version for a specific PPC405 board?

Any hint would be greatly appreciated.

Best regards

Niklaus Giger
Wieshoschet 6
CH-8753 Mollis
Tel. ++41 55 612 20 54 (privat)
Tel. ++41 55 618 64 68 (Geschäft)

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