[LinuxBIOS] Question about how to add data at fixed address before POST
Stefan Reinauer
stepan at coresystems.de
Tue Apr 24 11:54:36 CEST 2007
Dear Alex!
* AlexHuang <alexjoy at sis.com> [070424 10:53]:
> I would like to port a linuxbois on some platform.
Welcome on board.
> Before the system into
> the POST, hardware will read data at address 0xffffd. Where and How can I do
> this data assignment??
>
> Thanks for your help.
Check mainboards/tyan/s2895/Config.lb:
##
## ROMSTRAP table for CK804
##
if HAVE_FAILOVER_BOOT
if USE_FAILOVER_IMAGE
mainboardinit southbridge/nvidia/ck804/romstrap.inc
ldscript /southbridge/nvidia/ck804/romstrap.lds
end
else
if USE_FALLBACK_IMAGE
mainboardinit southbridge/nvidia/ck804/romstrap.inc
ldscript /southbridge/nvidia/ck804/romstrap.lds
end
end
It will place data at 0xfffe0, but this should be possible likewise for
0xfd.
What platform ist this?
Stefan
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