[coreboot-gerrit] Change in coreboot[master]: soc/amd/cezanne: Add ability to dump Smart Trace Buffer in bootblock

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Felix Held.
Hello Jason Glenesk, Marshall Dawson, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/61690

to look at the new patch set (#3).

Change subject: soc/amd/cezanne: Add ability to dump Smart Trace Buffer in bootblock
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soc/amd/cezanne: Add ability to dump Smart Trace Buffer in bootblock

This will make it easier to inspect the smart trace buffer. This
buffer contains POST codes and other debug data that can be useful to
understand what the system is doing.

This functionality was ported over from the linux amd-pmc driver.

BUG=b:217960752
TEST=Boot guybrush and verify STB is dumped

Signed-off-by: Raul E Rangel 
Change-Id: Ied3010ba0fc1d7327fe07df562f0483099d6b165
---
M src/soc/amd/cezanne/Kconfig
M src/soc/amd/cezanne/Makefile.inc
M src/soc/amd/cezanne/bootblock.c
A src/soc/amd/cezanne/include/soc/stb.h
A src/soc/amd/cezanne/stb.c
5 files changed, 60 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/61690/3