This sort-of reverts commit 00ec1b9fc7 ("soc/amd/common/block/psp/
psp_gen2: simplify soc_read_c2p38") and is done as a preparation to
switch back to using the MMIO access to the PSP mailbox registers.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Icca3c7832295ae9932778f6a64c493e474dad507
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83447
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
645203a280