SPD issues

Richard Smith rsmith at bitworks.com
Wed Feb 12 17:51:01 CET 2003


Ok.  Under the excellent guidance of Ron I finally got LinuxBIOS to boot 
  on our custom 440bx board by hardcoding the right values into the DRB 
and page size registers.

The problem seems to be that linuxBIOS dosen't detect the RAM properly 
in row 0.  Its seems to be setting it up at row 1.

I've been trying to use dump_spd_registers to see if I can figure out 
whats going on but all I seem to get is something more or less like the 
following:


dimm 50


dimm 51
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04
04 04 04 04 04 04 04 04 04 04 04 04 04 04 04 04


I've played with SMBUS_MEM_DEVICE_START but I still just get 04's. 
What's the standard adress for the spd info?

If this is truly what linuxbios is getting back from the spd then I can 
see why its confused.





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