config CLKSRC_OF bool config CLKSRC_I8253 bool config CLKEVT_I8253 bool config I8253_LOCK bool config CLKBLD_I8253 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK config CLKSRC_MMIO bool config DW_APB_TIMER bool config DW_APB_TIMER_OF bool select DW_APB_TIMER select CLKSRC_OF config ARMADA_370_XP_TIMER bool select CLKSRC_OF config ORION_TIMER select CLKSRC_OF select CLKSRC_MMIO bool config SUN4I_TIMER select CLKSRC_MMIO bool config SUN5I_HSTIMER select CLKSRC_MMIO bool config VT8500_TIMER bool config CADENCE_TTC_TIMER bool config CLKSRC_NOMADIK_MTU bool depends on (ARCH_NOMADIK || ARCH_U8500) select CLKSRC_MMIO help Support for Multi Timer Unit. MTU provides access to multiple interrupt generating programmable 32-bit free running decrementing counters. config CLKSRC_NOMADIK_MTU_SCHED_CLOCK bool depends on CLKSRC_NOMADIK_MTU help Use the Multi Timer Unit as the sched_clock. config CLKSRC_DBX500_PRCMU bool "Clocksource PRCMU Timer" depends on UX500_SOC_DB8500 default y help Use the always on PRCMU Timer as clocksource config CLKSRC_DBX500_PRCMU_SCHED_CLOCK bool "Clocksource PRCMU Timer sched_clock" depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK) default y help Use the always on PRCMU Timer as sched_clock config CLKSRC_EFM32 bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST) select CLKSRC_MMIO default ARCH_EFM32 help Support to use the timers of EFM32 SoCs as clock source and clock event device. config ARM_ARCH_TIMER bool select CLKSRC_OF if OF config ARM_ARCH_TIMER_EVTSTREAM bool "Support for ARM architected timer event stream generation" default y if ARM_ARCH_TIMER depends on ARM_ARCH_TIMER help This option enables support for event stream generation based on the ARM architected timer. It is used for waking up CPUs executing the wfe instruction at a frequency represented as a power-of-2 divisor of the clock rate. The main use of the event stream is wfe-based timeouts of userspace locking implementations. It might also be useful for imposing timeout on wfe to safeguard against any programming errors in case an expected event is not generated. This must be disabled for hardware validation purposes to detect any hardware anomalies of missing events. config ARM_GLOBAL_TIMER bool select CLKSRC_OF if OF help This options enables support for the ARM global timer unit config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK bool depends on ARM_GLOBAL_TIMER default y help Use ARM global timer clock source as sched_clock config CLKSRC_METAG_GENERIC def_bool y if METAG help This option enables support for the Meta per-thread timers. config CLKSRC_EXYNOS_MCT def_bool y if ARCH_EXYNOS help Support for Multi Core Timer controller on Exynos SoCs. config CLKSRC_SAMSUNG_PWM bool help This is a new clocksource driver for the PWM timer found in Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver for all devicetree enabled platforms. This driver will be needed only on systems that do not have the Exynos MCT available. config VF_PIT_TIMER bool help Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.