[XS] Change in coreboot[main]: Cezanne: Add an option to enable A/B recovery scheme

[Bao Zheng (Code Review)]

Attention is currently required from: Bao Zheng, Felix Held, Fred Reitberger, Jason Glenesk, Matt DeVillier, Zheng Bao.

Hello Felix Held, Fred Reitberger, Jason Glenesk, Matt DeVillier, Zheng Bao, build bot (Jenkins),

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

https://review.coreboot.org/c/coreboot/+/84195?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: Cezanne: Add an option to enable A/B recovery scheme
......................................................................

Cezanne: Add an option to enable A/B recovery scheme

The A/B recovery scheme formally separates the SPI flash space into
different partitions; a primary, “A” and secondary, “B”, which hold
the same set of system firmware. Under this scheme, the partitions A
and B can hold identical contents initially, but each partition can be
updated individually.

Normally the system boots from partition A, but if the A partition is
found to be corrupted, the system will switch to partition B and
boot. The OEM BIOS can then choose to continue the boot from partition
B, or repair partition A using contents from partition B.

The Cezanne platform supports both A/B recovery and no recovery
method and need this flag passed to amdfwtool to enable/disable the
A/B recovery layout.

Change-Id: Id1c8028faee9c544628d65fd77be2a378ed7eab6
Signed-off-by: Zheng Bao 
---
M src/soc/amd/cezanne/Kconfig
M src/soc/amd/cezanne/Makefile.mk
2 files changed, 9 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/95/84195/2