soc/intel/tigerlake: add common routine for DDR init

Add a common routine meminit_ddr() that calls the appropriate meminit
routine based on whether the memory type requested is LPDDR4x or DDR4.

BUG=b:161772961
TEST='emerge-volteer coreboot chromeos-bootimage' and verify that
volteer still boots. NOTE that this only tests the lpddr4 side
of the implementation. I do not have a DDR4 board to test this on.

Change-Id: Ib2039eb89211efc48d10897eb679d05f567ae5a1
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44249
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Ravishankar Sarawadi <ravishankar.sarawadi@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

0 files changed, 0 insertions, 0 deletions