Static values for TPM 1.2 command durations

Hi,

In order to translate some of the code (or data in this case) to
Trenchboot's early boot code it needs to know have some idea of
command durations.

In the case of TPM 2.0 we have a table for this, which can be
linked easily to early boot code. 

Can be come by reasonable values for TPM 1.2 command durations
that would scale to the pre-existing hardware?

BR, Jarkko