| menu "Clock Source drivers" |
| |
| 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 DIGICOLOR_TIMER |
| bool |
| |
| config DW_APB_TIMER |
| bool |
| |
| config DW_APB_TIMER_OF |
| bool |
| select DW_APB_TIMER |
| select CLKSRC_OF |
| |
| config ROCKCHIP_TIMER |
| bool |
| select CLKSRC_OF |
| |
| config ARMADA_370_XP_TIMER |
| bool |
| select CLKSRC_OF |
| |
| config MESON6_TIMER |
| bool |
| select CLKSRC_MMIO |
| |
| 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 TEGRA_TIMER |
| bool |
| |
| config VT8500_TIMER |
| bool |
| |
| config CADENCE_TTC_TIMER |
| bool |
| |
| config ASM9260_TIMER |
| bool |
| select CLKSRC_MMIO |
| select CLKSRC_OF |
| |
| 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 CLKSRC_LPC32XX |
| bool |
| select CLKSRC_MMIO |
| select CLKSRC_OF |
| |
| config CLKSRC_STM32 |
| bool "Clocksource for STM32 SoCs" if !ARCH_STM32 |
| depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) |
| select CLKSRC_MMIO |
| |
| 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 ARMV7M_SYSTICK |
| bool |
| select CLKSRC_OF if OF |
| select CLKSRC_MMIO |
| help |
| This options enables support for the ARMv7M system timer unit |
| |
| config ATMEL_PIT |
| select CLKSRC_OF if OF |
| def_bool SOC_AT91SAM9 || SOC_SAMA5 |
| |
| config ATMEL_ST |
| bool |
| select CLKSRC_OF |
| select MFD_SYSCON |
| |
| 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 |
| depends on !ARM64 |
| 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 FSL_FTM_TIMER |
| bool |
| help |
| Support for Freescale FlexTimer Module (FTM) timer. |
| |
| config VF_PIT_TIMER |
| bool |
| help |
| Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. |
| |
| config SYS_SUPPORTS_SH_CMT |
| bool |
| |
| config MTK_TIMER |
| select CLKSRC_OF |
| select CLKSRC_MMIO |
| bool |
| |
| config SYS_SUPPORTS_SH_MTU2 |
| bool |
| |
| config SYS_SUPPORTS_SH_TMU |
| bool |
| |
| config SYS_SUPPORTS_EM_STI |
| bool |
| |
| config SH_TIMER_CMT |
| bool "Renesas CMT timer driver" if COMPILE_TEST |
| depends on GENERIC_CLOCKEVENTS |
| depends on HAS_IOMEM |
| default SYS_SUPPORTS_SH_CMT |
| help |
| This enables build of a clocksource and clockevent driver for |
| the Compare Match Timer (CMT) hardware available in 16/32/48-bit |
| variants on a wide range of Mobile and Automotive SoCs from Renesas. |
| |
| config SH_TIMER_MTU2 |
| bool "Renesas MTU2 timer driver" if COMPILE_TEST |
| depends on GENERIC_CLOCKEVENTS |
| depends on HAS_IOMEM |
| default SYS_SUPPORTS_SH_MTU2 |
| help |
| This enables build of a clockevent driver for the Multi-Function |
| Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas. |
| This hardware comes with 16 bit-timer registers. |
| |
| config SH_TIMER_TMU |
| bool "Renesas TMU timer driver" if COMPILE_TEST |
| depends on GENERIC_CLOCKEVENTS |
| depends on HAS_IOMEM |
| default SYS_SUPPORTS_SH_TMU |
| help |
| This enables build of a clocksource and clockevent driver for |
| the 32-bit Timer Unit (TMU) hardware available on a wide range |
| SoCs from Renesas. |
| |
| config EM_TIMER_STI |
| bool "Renesas STI timer driver" if COMPILE_TEST |
| depends on GENERIC_CLOCKEVENTS && HAS_IOMEM |
| default SYS_SUPPORTS_EM_STI |
| help |
| This enables build of a clocksource and clockevent driver for |
| the 48-bit System Timer (STI) hardware available on a SoCs |
| such as EMEV2 from former NEC Electronics. |
| |
| config CLKSRC_QCOM |
| bool |
| |
| config CLKSRC_VERSATILE |
| bool "ARM Versatile (Express) reference platforms clock source" |
| depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET |
| select CLKSRC_OF |
| default y if MFD_VEXPRESS_SYSREG |
| help |
| This option enables clock source based on free running |
| counter available in the "System Registers" block of |
| ARM Versatile, RealView and Versatile Express reference |
| platforms. |
| |
| config CLKSRC_MIPS_GIC |
| bool |
| depends on MIPS_GIC |
| select CLKSRC_OF |
| |
| config CLKSRC_PXA |
| def_bool y if ARCH_PXA || ARCH_SA1100 |
| select CLKSRC_OF if USE_OF |
| help |
| This enables OST0 support available on PXA and SA-11x0 |
| platforms. |
| endmenu |
