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soc/intel/cmn/cse: Add Kconfig to set ME default CFR option state

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When using the CFR option backend, a mainboard may want to set the ME
default state to disabled, so add a Kconfig which can be selected to do
so.

Change-Id: I53d88af5e5cc9b7300b847e4aaf8e4cd2ce5bb75
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87649
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier 2025-05-02 13:12:13 -05:00
commit b59fef9678
2 changed files with 9 additions and 1 deletions
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8
src/soc/intel/common/block/cse/Kconfig
View file

@ -463,3 +463,11 @@ config CSE_RESET_CLEAR_EC_AP_IDLE_FLAG
Select this if the variant is a Chromebox/base. This allows AP to direct EC
to clear AP_IDLE flag before triggering reset to make sure AP can boot up
after reset.
config CSE_DEFAULT_CFR_OPTION_STATE_DISABLED
bool
default n
help
Mainboards can select this if using the CFR option backend to configure
the ME operational state and want the default state to be disabled.
If not selected, the default state will be enabled.

2
src/soc/intel/common/block/include/intelblocks/cfr.h
View file

@ -16,7 +16,7 @@ static const struct sm_object me_state = SM_DECLARE_ENUM({
.opt_name = "me_state",
.ui_name = "Intel Management Engine",
.ui_helptext = "Enable or disable the Intel Management Engine",
.default_value = 0,
.default_value = CONFIG(CSE_DEFAULT_CFR_OPTION_STATE_DISABLED),
.values = (const struct sm_enum_value[]) {
{ "Disabled", 1 },
{ "Enabled", 0 },