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soc/mediatek/common: Disable DRAM scramble by default 

Geralt SoC does not support 'persist certain regions' across reboots.
Considering the impact of missing ramoops for debugging, set
MEDIATEK_DRAM_SCRAMBLE to default n to disable this feature in
production FW image.

BUG=b:269049451,b:278478563
TEST=emerge-geralt coreboot and confirm CONFIG_MEDIATEK_DRAM_SCRAMBLE=n

Signed-off-by: Yidi Lin <yidilin@chromium.org>
Change-Id: I109634d811a928e3e6f7f56e706a5b61a52a21ab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75562
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Yidi Lin 2023-06-01 12:15:17 +08:00 committed by Felix Held
parent 15c8771868
commit 37e83250e8
1 changed files with 1 additions and 1 deletions
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src/soc/mediatek/common/Kconfig
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@ -32,7 +32,7 @@ config MEDIATEK_DRAM_BLOB_FAST_INIT
config MEDIATEK_DRAM_SCRAMBLE
bool
default y
default n
help
This option enables DRAM data scramble, which can prevent DRAM data from
being hacked.