Hi,
I am trying to finish up support for Intel's XE7501DEVKIT (E7501 Xeon reference board) and have run into a snag getting CMOS options to work.
It looks like the factory BIOS uses pretty much the entire normal 128-byte region of the CMOS. So to support LB use of CMOS I will have to use the upper 128 bytes.
Another option is to run this board without LB use of CMOS. But the factory BIOS on this board does not like the changes LB makes to the CMOS while booting. If I boot LB, then re-flash the factory BIOS and boot it, the factory BIOS complains that the CMOS checksum is bad.
The questions: * Is there any reason not to change hard-coded CMOS_IMAGE_SIZE constants
from 128 to 256?
* Is there any reason not to change hard-coded accesses to RTC_BOOT_BYTE
to equivalent read_option calls (accounting for the fact that the fallback image, in which USE_OPTION_TABLE=0, may also need to be able to read the 'boot byte' of the CMOS)?
* Is there any reason not to disable writing to CMOS (except for control
registers) when HAVE_OPTION_TABLE = 0?
------------------------------------------------------------------------ Steven J. Magnani "I claim this network for MARS! www.digidescorp.com Earthling, return my space modulator!"
#include <standard.disclaimer>
-
Steven J. Magnani