soc/amd/picasso: establish full early caching memory map

The PSP does the memory training and setting up of MSRs for
TOP_MEM and TOM2. Set caching up for all the DRAM areas:

Enable WB caching for 1MiB->TOP_MEM, 4GiB->TOM2.
Enable WC caching fro 0->1MiB except 0xa0000->0xc0000.

BUG=b:155426691

Change-Id: I83916a220ea4016d4438dd4fb5be82dec5506f80
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42103
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>

0 files changed, 0 insertions, 0 deletions