| 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 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 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 |