mainboard/google/kahlee: Prepare for variants

Move files that are particularly specific to the mainboard into the
variant directory.  Files that only have small areas of mainboard
specific pieces use #if to separate between the boards.

Add memory.c to split out the variant board id into a weak function.
Add baseboard/gpio.h to satisfy the build - this will be updated in the
next commit.


Change-Id: I7c1beb45f571f2547f3b5b0d7ec78923d0cec761
Signed-off-by: Martin Roth <>
Tested-by: build bot (Jenkins) <>
Reviewed-by: Aaron Durbin <>
14 files changed