Jumping to LinuxBIOS

sivakumar sivakumar.subramani at wipro.com
Wed Jan 15 22:03:00 CET 2003


Hi, 

use dumpnorth to dump the northbridge, and compare your settings to the 
> original BIOS settings. 

I have used dumpnorth in my code and got the REGISTER back.

Original BIOS settings means setting of some other BIOS other then
LinuxBIOS. Is it possible to get the DRAM register values from Othe
BIOS. I have AOPEN bios for my system.


dump northbridge:
00: 86 80 30 1a 06 00 90 20 04 00 00 06 00 00 00 00
10: 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 e4 00 00 00 00 00 00 00 00 00 00 00
40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 00 00 00 00 15 00 00
60: 08 08 08 08 08 08 08 08 00 00 00 00 00 00 00 00
70: 10 00 00 00 00 00 00 00 05 02 03 00 00 00 00 00
80: 00 00 82 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 00 00 00 00 00 00 00 00 41 19 00 00 00 02 38 00
a0: 02 00 20 00 17 02 00 1f 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 44 40 50 11 00 01 05 08 00 00 00 00 00 00 00 00
d0: 02 28 00 0e 0b 00 00 33 af 01 31 b5 00 00 00 00
e0: 00 00 00 00 09 a0 04 91 00 00 00 00 00 00 00 00
f0: 00 00 00 00 74 f8 20 80 38 0f 00 00 04 00 00 00
Done.

THanks,
SIVA



On Tue, 2003-01-14 at 21:26, Ronald G. Minnich wrote:
> On 14 Jan 2003, sivakumar wrote:
> 
> > I have checked my DDR SDRAM register programming and initialization
> > progams with specification. It looks ok to me. If you want I can send it
> > for reference.
> 
> use dumpnorth to dump the northbridge, and compare your settings to the 
> original BIOS settings. 
> 
> I think you've got something wrong in your DRAM programming.
> 
> ron
-- 
sivakumar <sivakumar.subramani at wipro.com>
wipro




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