On 7 Feb, Matthias Weidle wrote:
>
> hi!
>
> after i found out about your cool linuxbios project i wanted to give it a
> shot myself. so i've checked your project status page and found some old BX
> board very similar to one of the mentioned mobo's there: the gigabyte
> GA-6BXS board.
> it differs from the GA-6BXC board in having onboard scsi (i don't need
> this) and having 4 ram slots instead of 3.
>
> well yes ... and i figured it has a different i/o controller (winbond).
>
> i took the config files for the GA-6BXC for a start, changed the i/o chip
> configuration and flashed the eprom. on the serial port i get the "welcome"
> message but it hangs very soon doing the ram initialisation. for a second
> try i've build a new image with the ramtest code included and this one
> tells me that it has "too many errors". the pattern which has been written
> to the ram in the first step can't be verified in the second step (not even
> once).
>
> after digging a bit in the ram initialisation code i found out that it
> seems to be pretty much hard coded for the BX chipset ... no autoconf at
> all.
That is correct. I am the person guilty of much of the BX code and the
one with the GA-BXC board. I am useing the Gigabyte board as a COTS
development system for a custom embedded PC we are developing. This
custom PC won't have the SPD eeproms in the memory system and therefore
requires a hard coded memory configuration. ...so that's what I have
written.
> i do have 2 128MB SDRAM sticks (one single sided and one double sided).
I'm not sure how many variations you have to worry about, but the code
works with either 1 or 2, single sided 128M dimms. If you put only
your single sided dimm in and put it in the right socket, and if all
the other variables happen to be correct, it should work.
> what can i do to get it working?
> any hints are very much appreciated!
You might also try working with anyone working on SPD based SDRAM
config for the 440 type chip sets. That is really what is needed.
> best regards,
> -- matt.
Cheers!
Ty
--
Tyson D Sawyer iRobot Corporation
Senior Systems Engineer Real World Interface Div.
[EMAIL PROTECTED] Robots for the Real World
603-532-6900 ext 206 http://www.irobot.com
