[coreboot-gerrit] Change in coreboot[master]: mb/purism/librem_cnl: Use FMAP-based SPD cache

[Matt DeVillier (Code Review)]

Hello build bot (Jenkins), Angel Pons,

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

https://review.coreboot.org/c/coreboot/+/48549

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

Change subject: mb/purism/librem_cnl: Use FMAP-based SPD cache
......................................................................

mb/purism/librem_cnl: Use FMAP-based SPD cache

Use a FMAP region to cache SPD data, providing improvements in boot
time and detection of change in DIMM population (whcih FSP will
sometimes fail to detect / fail to invalidate the MRC cache).

Adapted from implemention used in google/hatch.

Test: build/boot Librem Mini v2, verify SPD cache used, changes
in DIMM population properly detected.

Change-Id: I15cb9aa8b00d39d098a0f901aee026bac1161a80
Signed-off-by: Matt DeVillier 
---
M src/mainboard/purism/librem_cnl/Kconfig
M src/mainboard/purism/librem_cnl/romstage.c
2 files changed, 95 insertions(+), 43 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/48549/2