memmap.c functionality is designed to be used in more than ramstage. Therefore, it cannot use ramstage-specific APIs. In this case, the SIMPLE_DEVICE API offers a more consistent behavior across stages. Change-Id: Ic381fe1eb773fb0a5fb5887eb67d2228d2f0817d Signed-off-by: Alexandru Gagniuc <alexandrux.gagniuc@intel.com> Reviewed-on: https://review.coreboot.org/14953 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>