chromeos/cr50_enable_update.c: Clear EC AP_IDLE flag
When AP boots up after Cr50 firmware update and reboot, AP finds
that Cr50 reset is required for Cr50 to pick the new firmware so
it trigger Cr50 reset and power off the system, AP expects system
will power on automatically after Cr50 reset. However this is not
the case for Chromebox, Chromebox EC set AP_IDLE flag when system
is shutting down, when AP_IDLE flag is set in EC, the system stays
at S5/G3 and wait for power button presssend. It cause an issue in
factory that the operator needs to press power button to power on
the DUT after Cr50 firmware update.
This patch sends EC command to direct EC to clear AP_IDLE flag
after AP shutdown so AP can boot up when Cr50 reset.
BUG=b:261119366
BRANCH=firmware-brya-14505.B
TEST=DUT boots up after Cr50 firmware update in factory test flow
Change-Id: If97ffbe65f4783f17f4747a87b0bf89a2b021a3b
Signed-off-by: Derek Huang <derekhuang@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70773
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brya/Kconfig b/src/mainboard/google/brya/Kconfig
index 78f0ad5..a7f4594 100644
--- a/src/mainboard/google/brya/Kconfig
+++ b/src/mainboard/google/brya/Kconfig
@@ -61,6 +61,7 @@
select SOC_INTEL_ALDERLAKE_PCH_P
select SOC_INTEL_CSE_PRE_CPU_RESET_TELEMETRY
select TPM_GOOGLE_CR50
+ select CR50_RESET_CLEAR_EC_AP_IDLE_FLAG
config BOARD_GOOGLE_BASEBOARD_NISSA
def_bool n