Change in coreboot[master]: soc/amd/picasso: fix CBFS MCACHE on Zork

[Kangheui Won (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Kangheui Won, Julius Werner, Aaron Durbin, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Martin Roth, Marshall Dawson, Julius Werner, Aaron Durbin, Felix Held,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/49468

to look at the new patch set (#4).

Change subject: soc/amd/picasso: fix CBFS MCACHE on Zork
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soc/amd/picasso: fix CBFS MCACHE on Zork

Zork platform was not booting with MCACHE enabled since psp_verstage
had following issues with MCACHE.
Fix all the issues and re-enable MCACHE for Zork.

* psp_verstage should call vboot_run_logic, not verstage_main.
vboot_run_logic calls after_verstage which handles RW MCACHE build.

* It should avoid low-level apis for cbfs access.
cbfs_map will build RO MCACHE if it's the first stage, while other
low-level apis won't.

* It should call update_boot_region before save_buffers
MCACHE should be transferred to x86 so we should build it before
calling save_buffers

BUG=b:177323348
BRANCH=none
TEST=boot Ezkinil

Signed-off-by: Kangheui Won 
Change-Id: I08c5f8474600a06e3a08358733a38f70787e944a
---
M src/soc/amd/picasso/Kconfig
M src/soc/amd/picasso/psp_verstage/psp_verstage.c
2 files changed, 9 insertions(+), 30 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/68/49468/4