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-rw-r--r--src/soc/intel/common/block/timer/Kconfig12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/soc/intel/common/block/timer/Kconfig b/src/soc/intel/common/block/timer/Kconfig
index a214ef016b..42613a8f84 100644
--- a/src/soc/intel/common/block/timer/Kconfig
+++ b/src/soc/intel/common/block/timer/Kconfig
@@ -8,7 +8,11 @@ config USE_LEGACY_8254_TIMER
default y if PAYLOAD_SEABIOS || VGA_ROM_RUN
default n
help
- This sets the FSP UPD to enable Legacy 8254 clock gating. As per
- the FSP Integration guide Legacy 8254 timer clock gating UPD needs
- to be disabled in order to boot SeaBIOS or run OpRom,
- but should otherwise be enabled.
+ Setting this makes the Legacy 8254 Timer available by disabling
+ clock gating. This needs to be enabled in order to boot a legacy
+ BIOS or OS not supporting other timers like PM timer or TSC.
+
+ While SeaBIOS does not require this timer anymore, it is needed
+ when OpRoms are being used.
+
+ Disable this setting to save power, when the timer is not needed.