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authorMichael Niewöhner <foss@mniewoehner.de>2020-10-04 15:16:04 +0200
committerPatrick Georgi <pgeorgi@google.com>2020-10-21 07:13:22 +0000
commitfe6070f7280cfcc41fffded67789439531e8ab49 (patch)
treec100a4d448da8760c50c55cfd180d5a189a5e2eb /src/soc/intel/common
parent7ea4372d82e096cc1bbd1aeae9e04adc9f5ac083 (diff)
soc/intel/common: add Kconfig for PM Timer emulation support
Add a Kconfig for SoCs to indicate PM ACPI timer emulation support and select it by the appropriate SoCs. This Kconfig gets used in the follow-up changes. Change-Id: I6ded79221a01655f298ff92b8bd2afabd1d2a3ff Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/soc/intel/common')
-rw-r--r--src/soc/intel/common/block/cpu/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/cpu/Kconfig b/src/soc/intel/common/block/cpu/Kconfig
index 995a95680c..9e95a8aa90 100644
--- a/src/soc/intel/common/block/cpu/Kconfig
+++ b/src/soc/intel/common/block/cpu/Kconfig
@@ -98,3 +98,11 @@ config INTEL_TME
/16/Multi-Key-Total-Memory-Encryption-Spec.pdf". If CPU supports TME,
it would get enabled. If CPU supports MKTME, this same config option
enables MKTME.
+
+config CPU_SUPPORTS_PM_TIMER_EMULATION
+ bool
+ default n
+ help
+ Select this if the SoC's ucode supports PM ACPI timer emulation (Common
+ timer Copy), which is required to be able to disable the TCO PM ACPI
+ timer for power saving.