f266dc6174
This was simply copied from sandybridge/gma.c. All these registers read back 0xffffffff or 0 or don't respond to reads. Change-Id: I094e7caa889a3175477aa78b91545ca804d423c8 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35746 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>