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- 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 ARM_TIMER_SP804
- bool "Support for Dual Timer SP804 module"
- depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
- select CLKSRC_MMIO
- select CLKSRC_OF if OF
- 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.
- config H8300_TMR16
- bool
- config H8300_TPU
- bool
- config CLKSRC_IMX_GPT
- bool "Clocksource using i.MX GPT" if COMPILE_TEST
- depends on ARM && CLKDEV_LOOKUP
- select CLKSRC_MMIO
- endmenu
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