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menu "Clock Source drivers"
depends on !ARCH_USES_GETTIMEOFFSET
config CLKSRC_OF
bool
select CLKSRC_PROBE
config CLKSRC_ACPI
bool
select CLKSRC_PROBE
config CLKSRC_PROBE
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 "Digicolor timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
help
Enables the support for the digicolor timer driver.
config DW_APB_TIMER
bool "DW APB timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
help
Enables the support for the dw_apb timer.
config DW_APB_TIMER_OF
bool
select DW_APB_TIMER
select CLKSRC_OF
config ROCKCHIP_TIMER
bool "Rockchip timer driver" if COMPILE_TEST
depends on ARM || ARM64
select CLKSRC_OF
help
Enables the support for the rockchip timer driver.
config ARMADA_370_XP_TIMER
bool "Armada 370 and XP timer driver" if COMPILE_TEST
depends on ARM
select CLKSRC_OF
help
Enables the support for the Armada 370 and XP timer driver.
config MESON6_TIMER
bool "Meson6 timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
select CLKSRC_MMIO
help
Enables the support for the Meson6 timer driver.
config ORION_TIMER
bool "Orion timer driver" if COMPILE_TEST
depends on ARM
select CLKSRC_OF
select CLKSRC_MMIO
help
Enables the support for the Orion timer driver
config SUN4I_TIMER
bool "Sun4i timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
select CLKSRC_MMIO
help
Enables support for the Sun4i timer.
config SUN5I_HSTIMER
bool "Sun5i timer driver" if COMPILE_TEST
select CLKSRC_MMIO
depends on COMMON_CLK
help
Enables support the Sun5i timer.
config TEGRA_TIMER
bool "Tegra timer driver" if COMPILE_TEST
depends on ARM
help
Enables support for the Tegra driver.
config VT8500_TIMER
bool "VT8500 timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
help
Enables support for the VT8500 driver.
config CADENCE_TTC_TIMER
bool "Cadence TTC timer driver" if COMPILE_TEST
depends on COMMON_CLK
help
Enables support for the cadence ttc driver.
config ASM9260_TIMER
bool "ASM9260 timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
select CLKSRC_MMIO
select CLKSRC_OF
help
Enables support for the ASM9260 timer.
config CLKSRC_NOMADIK_MTU
bool "Nomakdik clocksource driver" if COMPILE_TEST
depends on ARM
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" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
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 "Clocksource for LPC32XX" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
depends on ARM
select CLKSRC_MMIO
select CLKSRC_OF
help
Support for the LPC32XX clocksource.
config CLKSRC_PISTACHIO
bool "Clocksource for Pistachio SoC" if COMPILE_TEST
depends on HAS_IOMEM
select CLKSRC_OF
help
Enables the clocksource for the Pistachio SoC.
config CLKSRC_TI_32K
bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
depends on GENERIC_SCHED_CLOCK
select CLKSRC_OF if OF
help
This option enables support for Texas Instruments 32.768 Hz clocksource
available on many OMAP-like platforms.
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
select CLKSRC_ACPI if ACPI
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
bool "Exynos multi core timer driver" if COMPILE_TEST
depends on ARM
help
Support for Multi Core Timer controller on Exynos SoCs.
config CLKSRC_SAMSUNG_PWM
bool "PWM timer drvier for Samsung S3C, S5P" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
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 "Freescale FlexTimer Module driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
select CLKSRC_MMIO
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
bool "Mediatek timer driver" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
select CLKSRC_OF
select CLKSRC_MMIO
help
Support for Mediatek timer driver.
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 "Qualcomm MSM timer" if COMPILE_TEST
depends on ARM
select CLKSRC_OF
help
This enables the clocksource and the per CPU clockevent driver for the
Qualcomm SoCs.
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_TANGO_XTAL
bool "Clocksource for Tango SoC" if COMPILE_TEST
depends on ARM
select CLKSRC_OF
select CLKSRC_MMIO
help
This enables the clocksource for Tango SoC
config CLKSRC_PXA
bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS
select CLKSRC_MMIO
help
This enables OST0 support available on PXA and SA-11x0
platforms.
config H8300_TMR8
bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
help
This enables the 8 bits timer for the H8300 platform.
config H8300_TMR16
bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
help
This enables the 16 bits timer for the H8300 platform with the
H83069 cpu.
config H8300_TPU
bool "Clocksource for the H8300 platform" if COMPILE_TEST
depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
help
This enables the clocksource for the H8300 platform with the
H8S2678 cpu.
config CLKSRC_IMX_GPT
bool "Clocksource using i.MX GPT" if COMPILE_TEST
depends on ARM && CLKDEV_LOOKUP
select CLKSRC_MMIO
config CLKSRC_ST_LPC
bool "Low power clocksource found in the LPC" if COMPILE_TEST
select CLKSRC_OF if OF
depends on HAS_IOMEM
help
Enable this option to use the Low Power controller timer
as clocksource.
endmenu
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