1 files changed, 11 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index eb4092568f9e..0ab2dcef7d84 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -390,6 +390,7 @@ config X86_MRST
        bool "Moorestown MID platform"
         depends on X86_32
         depends on X86_EXTENDED_PLATFORM
+        select APB_TIMER
         ---help---
           Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin
           Internet Device(MID) platform. Moorestown consists of two chips:
@@ -612,6 +613,16 @@ config HPET_EMULATE_RTC
         def_bool y
         depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
 
+config APB_TIMER
+       def_bool y if MRST
+       prompt "Langwell APB Timer Support" if X86_MRST
+       help
+         APB timer is the replacement for 8254, HPET on X86 MID platforms.
+         The APBT provides a stable time base on SMP
+         systems, unlike the TSC, but it is more expensive to access,
+         as it is off-chip. APB timers are always running regardless of CPU
+         C states, they are used as per CPU clockevent device when possible.
+
 # Mark as embedded because too many people got it wrong.
 # The code disables itself when not needed.
 config DMI