Patch Set 2:
> this should be across all soc then ?

Yes, it looks like this will be required for all SoCs. I am
wondering if we should just move snapshot/restore to
do_silicon_init() in silicon_init.c

APL/GLK is special since it calls gpio config differently than what
KBL/CNL do. Hence, this issue was never seen on platforms using
APL/GLK.

do_silicon_init() in silicon_init.c is in fsp driver (which is common between small and big cores) i believe then we might need to make use of common PCH Kconfig option to achieve this.

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