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authorJulius Werner <jwerner@chromium.org>2019-11-18 13:01:06 -0800
committerPatrick Georgi <pgeorgi@google.com>2019-11-19 11:26:21 +0000
commit7fc928656e791064c46a4748f86466930bdf2de6 (patch)
treea201d9efaf2a33e9a71709698ac7db0d47b92fc5 /src/lib/Kconfig
parentceb7e68c48eafbfa9b735842159e01e8d2123a93 (diff)
downloadcoreboot-7fc928656e791064c46a4748f86466930bdf2de6.tar.xz
lib/fmap: Disable pre-RAM cache for FSP 1.0
Due to the way CAR teardown is handled in FSP 1.0, the results of car_get_var_ptr() aren't always reliable, which can break things when running with FMAP cache. It might be possible to fix this but would make the code rather complicated, so let's just disable the feature on these platforms and hope they die out soon. Also allow this option to be used by platforms that don't have space for the cache and want to save a little more code. Change-Id: I7ffb1b8b08a7ca3fe8d53dc827e2c8521da064c7 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36937 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/lib/Kconfig')
-rw-r--r--src/lib/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/lib/Kconfig b/src/lib/Kconfig
index cb1e4a5cc8..dd9974a817 100644
--- a/src/lib/Kconfig
+++ b/src/lib/Kconfig
@@ -68,3 +68,10 @@ config HWBASE_DIRECT_PCIDEV
def_bool y
endif
+
+config NO_FMAP_CACHE
+ bool
+ help
+ If your platform really doesn't want to use an FMAP cache (e.g. due to
+ space constraints), you can select this to disable warnings and save
+ a bit more code.