On 13.02.2020 11:27, Mogens Jensen via coreboot wrote:
Thanks everyone for pointing me in the right direction, I didn't know about configuration data in ME.
I did a quick comparison of the ICC profiles in the two ME images and found multiple differences.
FCIM/BTM Specific ICC Registers:
Clock Source Select SRC Source Select PLL Reference Clock Select Divider Enable
ICC Registers:
Flex Clock Source Select Output Clock Enable PI12BiasParms
I need to do more research to find out what all this means, but in theory, if I update the new ME with same values as the old one, then I should have a working SATA disk?
Theoretically yes. But practically cannot guarantee that (it is hardware). However, the chances are very high. I recently had an issue with mismatched ICC configuration which caused 1 of 6 Gigabit Ethernet Controllers to be disabled. Fixed by applying identical ICC configuration to the new ME image.
Regards, Mogens Jensen _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-leave@coreboot.org
Regards,