CONFIG_HPET_TIMER

HPET timer

Type: bool

Help

This option selects High Precision Event Timer (HPET) as a system timer.

Direct dependencies

SOC_APOLLO_LAKE || X86

(Includes any dependencies from ifs and menus.)

Default

  • y

Kconfig definitions

At <Zephyr>/soc/x86/apollo_lake/Kconfig.defconfig:15

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:25 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1

Menu path: (Top)

config HPET_TIMER
    bool
    default y
    depends on SOC_APOLLO_LAKE

At <Zephyr>/drivers/timer/Kconfig:56

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:28

Menu path: (Top) → Device Drivers → Timer Drivers

config HPET_TIMER
    bool "HPET timer"
    select IOAPIC if X86
    select LOAPIC if X86
    select TIMER_READS_ITS_FREQUENCY_AT_RUNTIME
    select TICKLESS_CAPABLE
    depends on X86
    help
      This option selects High Precision Event Timer (HPET) as a
      system timer.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)