Rauru reference design has SD card interfaces, so we have to configure
it in ramstage.
Implement msdc.c (memory and SD Card controller) to place the SD card
drivers.
This implementation is based on chapter 10.3 in MT8196 Functional
Specification.
TEST=Build pass
BUG=b:317009620
Change-Id: Ibb6a075d0f1b5a647e93a58b3ea1029b7676c765
Signed-off-by: Andy-ld Lu <andy-ld.lu@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85564
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
e969a3df87