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authorTim Crawford <tcrawford@system76.com>2021-11-22 08:57:08 -0700
committerPatrick Georgi <patrick@coreboot.org>2021-11-23 09:22:10 +0000
commit12a98ffbfb6660552fb2940b0a8aae2edfdfda66 (patch)
tree7d5d0c990f37e4a9d267151bc9f3c0fe9057dbd1 /src/mainboard/system76/cml-u
parent3c01123abb43f5bb35d2bf84f1dfa45b6a297ca3 (diff)
mb/system76/*: Disable IME by CMOS option
Add CMOS option to set IME mode. Default to "Disable" for CNL and TGL-H, and "Enable" for TGL-U. Not set for KBL, which uses ME_CLEANER. The HECI device must be enabled in devicetree for switching modes to function correctly. Change-Id: I3163dcb0a4af020c2cf6f94f2bb26380f17c253e Signed-off-by: Tim Crawford <tcrawford@system76.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/57621 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jeremy Soller <jeremy@system76.com>
Diffstat (limited to 'src/mainboard/system76/cml-u')
-rw-r--r--src/mainboard/system76/cml-u/cmos.default1
-rw-r--r--src/mainboard/system76/cml-u/cmos.layout5
2 files changed, 6 insertions, 0 deletions
diff --git a/src/mainboard/system76/cml-u/cmos.default b/src/mainboard/system76/cml-u/cmos.default
index 06b04332a2..0d376751c1 100644
--- a/src/mainboard/system76/cml-u/cmos.default
+++ b/src/mainboard/system76/cml-u/cmos.default
@@ -1,2 +1,3 @@
boot_option=Fallback
debug_level=Debug
+me_state=Disable
diff --git a/src/mainboard/system76/cml-u/cmos.layout b/src/mainboard/system76/cml-u/cmos.layout
index ac817525dd..a53c3f4bba 100644
--- a/src/mainboard/system76/cml-u/cmos.layout
+++ b/src/mainboard/system76/cml-u/cmos.layout
@@ -12,10 +12,15 @@ entries
400 8 r 0 century
412 4 e 6 debug_level
+416 1 e 2 me_state
+417 3 h 0 me_state_counter
984 16 h 0 check_sum
enumerations
+2 0 Enable
+2 1 Disable
+
4 0 Fallback
4 1 Normal