soc/intel/common/block: Add Intel common systemagent support

Create common Intel systemagent code.
This code currently contains the SA initialization
required in Bootblock phase, which has the following programming-
* Clear TSEG register
More code will get added up in the subsequent phases.

Change-Id: I6f0c515278f7fd04d407463a1eeb25ba13639f5c
Signed-off-by: Barnali Sarkar <>
Signed-off-by: Subrata Banik <>
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <>
4 files changed