baytrail: additional iosf changes

Allow for one to write an individual byte of a 32-bit register
when sending a read/write through the IOSF messaging system.
Add PUNIT registers and fields for early sequencing.

TEST=Built and partially booted with changes that use PUNIT
     registers and individual byte en fields.

Change-Id: I929fb5c51d805c55c478cab884e3572254987fc7
Signed-off-by: Aaron Durbin <>
Reviewed-by: Duncan Laurie <>
1 file changed