Help¶

Use the “new” local APIC timer driver for the system timer. This is a replacement for the legacy local APIC timer driver which supports tickless operation, but not the Quark MVIC.

Direct dependencies¶

BOARD_UP_SQUARED || (X86 && LOAPIC)

(Includes any dependencies from ifs and menus.)

Default¶

y if !HPET_TIMER

Symbols selected by this symbol¶

TICKLESS_CAPABLE

Kconfig definitions¶

At boards/x86/up_squared/Kconfig.defconfig:31

Included via Kconfig:8 → Kconfig.zephyr:26

Menu path: (Top)

config APIC_TIMER
    bool
    default y if !HPET_TIMER
    depends on BOARD_UP_SQUARED

At drivers/timer/Kconfig:10

Included via Kconfig:8 → Kconfig.zephyr:40 → drivers/Kconfig:24

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

menuconfig APIC_TIMER
    bool "New local APIC timer"
    select TICKLESS_CAPABLE
    depends on X86 && LOAPIC
    help
      Use the "new" local APIC timer driver for the system timer.
      This is a replacement for the legacy local APIC timer driver
      which supports tickless operation, but not the Quark MVIC.

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