| menu "Clock Source drivers" |
| depends on GENERIC_CLOCKEVENTS |
| |
| config TIMER_OF |
| bool |
| select TIMER_PROBE |
| |
| config TIMER_ACPI |
| bool |
| select TIMER_PROBE |
| |
| config TIMER_PROBE |
| bool |
| |
| config CLKSRC_I8253 |
| bool |
| |
| config CLKEVT_I8253 |
| bool |
| |
| config I8253_LOCK |
| bool |
| |
| config OMAP_DM_TIMER |
| bool |
| |
| config CLKBLD_I8253 |
| def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK |
| |
| config CLKSRC_MMIO |
| bool |
| |
| config BCM2835_TIMER |
| bool "BCM2835 timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables the support for the BCM2835 timer driver. |
| |
| config BCM_KONA_TIMER |
| bool "BCM mobile timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables the support for the BCM Kona mobile timer driver. |
| |
| config DIGICOLOR_TIMER |
| bool "Digicolor timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| depends on HAS_IOMEM |
| help |
| Enables the support for the digicolor timer driver. |
| |
| config DW_APB_TIMER |
| bool "DW APB timer driver" if COMPILE_TEST |
| help |
| Enables the support for the dw_apb timer. |
| |
| config DW_APB_TIMER_OF |
| bool |
| select DW_APB_TIMER |
| select TIMER_OF |
| |
| config FTTMR010_TIMER |
| bool "Faraday Technology timer driver" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select CLKSRC_MMIO |
| select TIMER_OF |
| select MFD_SYSCON |
| help |
| Enables support for the Faraday Technology timer block |
| FTTMR010. |
| |
| config ROCKCHIP_TIMER |
| bool "Rockchip timer driver" if COMPILE_TEST |
| depends on ARM || ARM64 |
| select TIMER_OF |
| select CLKSRC_MMIO |
| 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 TIMER_OF |
| select CLKSRC_MMIO |
| help |
| Enables the support for the Armada 370 and XP timer driver. |
| |
| config MESON6_TIMER |
| bool "Meson6 timer driver" if COMPILE_TEST |
| 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 TIMER_OF |
| select CLKSRC_MMIO |
| help |
| Enables the support for the Orion timer driver |
| |
| config OWL_TIMER |
| bool "Owl timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables the support for the Actions Semi Owl timer driver. |
| |
| config SUN4I_TIMER |
| bool "Sun4i timer driver" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select CLKSRC_MMIO |
| select TIMER_OF |
| 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 |
| select CLKSRC_MMIO |
| depends on ARM |
| help |
| Enables support for the Tegra driver. |
| |
| config VT8500_TIMER |
| bool "VT8500 timer driver" if COMPILE_TEST |
| depends on HAS_IOMEM |
| help |
| Enables support for the VT8500 driver. |
| |
| config NPCM7XX_TIMER |
| bool "NPCM7xx timer driver" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select TIMER_OF |
| select CLKSRC_MMIO |
| help |
| Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture, |
| While TIMER0 serves as clockevent and TIMER1 serves as clocksource. |
| |
| 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 |
| select CLKSRC_MMIO |
| select TIMER_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 HAS_IOMEM |
| help |
| Use the always on PRCMU Timer as clocksource |
| |
| config CLPS711X_TIMER |
| bool "Cirrus logic timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables support for the Cirrus Logic PS711 timer. |
| |
| config ATLAS7_TIMER |
| bool "Atlas7 timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables support for the Atlas7 timer. |
| |
| config MXS_TIMER |
| bool "Mxs timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| select STMP_DEVICE |
| help |
| Enables support for the Mxs timer. |
| |
| config PRIMA2_TIMER |
| bool "Prima2 timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables support for the Prima2 timer. |
| |
| config U300_TIMER |
| bool "U300 timer driver" if COMPILE_TEST |
| depends on ARM |
| select CLKSRC_MMIO |
| help |
| Enables support for the U300 timer. |
| |
| config NSPIRE_TIMER |
| bool "NSpire timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables support for the Nspire timer. |
| |
| config KEYSTONE_TIMER |
| bool "Keystone timer driver" if COMPILE_TEST |
| depends on ARM || ARM64 |
| select CLKSRC_MMIO |
| help |
| Enables support for the Keystone timer. |
| |
| config INTEGRATOR_AP_TIMER |
| bool "Integrator-ap timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables support for the Integrator-ap timer. |
| |
| 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 HAS_IOMEM |
| depends on ARM |
| select CLKSRC_MMIO |
| select TIMER_OF |
| help |
| Support for the LPC32XX clocksource. |
| |
| config CLKSRC_PISTACHIO |
| bool "Clocksource for Pistachio SoC" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select TIMER_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 TIMER_OF if OF |
| help |
| This option enables support for Texas Instruments 32.768 Hz clocksource |
| available on many OMAP-like platforms. |
| |
| config CLKSRC_NPS |
| bool "NPS400 clocksource driver" if COMPILE_TEST |
| depends on !PHYS_ADDR_T_64BIT |
| select CLKSRC_MMIO |
| select TIMER_OF if OF |
| help |
| NPS400 clocksource support. |
| Got 64 bit counter with update rate up to 1000MHz. |
| This counter is accessed via couple of 32 bit memory mapped registers. |
| |
| config CLKSRC_STM32 |
| bool "Clocksource for STM32 SoCs" if !ARCH_STM32 |
| depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST) |
| select CLKSRC_MMIO |
| select TIMER_OF |
| |
| config CLKSRC_MPS2 |
| bool "Clocksource for MPS2 SoCs" if COMPILE_TEST |
| depends on GENERIC_SCHED_CLOCK |
| select CLKSRC_MMIO |
| select TIMER_OF |
| |
| config ARC_TIMERS |
| bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST |
| depends on GENERIC_SCHED_CLOCK |
| select TIMER_OF |
| help |
| These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores |
| (ARC700 as well as ARC HS38). |
| TIMER0 serves as clockevent while TIMER1 provides clocksource |
| |
| config ARC_TIMERS_64BIT |
| bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST |
| depends on ARC_TIMERS |
| select TIMER_OF |
| help |
| This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP) |
| RTC is implemented inside the core, while GFRC sits outside the core in |
| ARConnect IP block. Driver automatically picks one of them for clocksource |
| as appropriate. |
| |
| config ARM_ARCH_TIMER |
| bool |
| select TIMER_OF if OF |
| select TIMER_ACPI if ACPI |
| |
| config ARM_ARCH_TIMER_EVTSTREAM |
| bool "Enable ARM architected timer event stream generation by default" |
| default y if ARM_ARCH_TIMER |
| depends on ARM_ARCH_TIMER |
| help |
| This option enables support by default 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 behaviour can also be |
| overridden on the command line using the |
| clocksource.arm_arch_timer.evtstream parameter. |
| 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_ARCH_TIMER_OOL_WORKAROUND |
| bool |
| |
| config FSL_ERRATUM_A008585 |
| bool "Workaround for Freescale/NXP Erratum A-008585" |
| default y |
| depends on ARM_ARCH_TIMER && ARM64 |
| select ARM_ARCH_TIMER_OOL_WORKAROUND |
| help |
| This option enables a workaround for Freescale/NXP Erratum |
| A-008585 ("ARM generic timer may contain an erroneous |
| value"). The workaround will only be active if the |
| fsl,erratum-a008585 property is found in the timer node. |
| |
| config HISILICON_ERRATUM_161010101 |
| bool "Workaround for Hisilicon Erratum 161010101" |
| default y |
| select ARM_ARCH_TIMER_OOL_WORKAROUND |
| depends on ARM_ARCH_TIMER && ARM64 |
| help |
| This option enables a workaround for Hisilicon Erratum |
| 161010101. The workaround will be active if the hisilicon,erratum-161010101 |
| property is found in the timer node. |
| |
| config ARM64_ERRATUM_858921 |
| bool "Workaround for Cortex-A73 erratum 858921" |
| default y |
| select ARM_ARCH_TIMER_OOL_WORKAROUND |
| depends on ARM_ARCH_TIMER && ARM64 |
| help |
| This option enables a workaround applicable to Cortex-A73 |
| (all versions), whose counter may return incorrect values. |
| The workaround will be dynamically enabled when an affected |
| core is detected. |
| |
| config SUN50I_ERRATUM_UNKNOWN1 |
| bool "Workaround for Allwinner A64 erratum UNKNOWN1" |
| default y |
| depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI |
| select ARM_ARCH_TIMER_OOL_WORKAROUND |
| help |
| This option enables a workaround for instability in the timer on |
| the Allwinner A64 SoC. The workaround will only be active if the |
| allwinner,erratum-unknown1 property is found in the timer node. |
| |
| config ARM_GLOBAL_TIMER |
| bool "Support for the ARM global timer" if COMPILE_TEST |
| select TIMER_OF if OF |
| depends on ARM |
| 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 TIMER_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 "Support for the ARMv7M system time" if COMPILE_TEST |
| select TIMER_OF if OF |
| select CLKSRC_MMIO |
| help |
| This options enables support for the ARMv7M system timer unit |
| |
| config ATMEL_PIT |
| select TIMER_OF if OF |
| def_bool SOC_AT91SAM9 || SOC_SAMA5 |
| |
| config ATMEL_ST |
| bool "Atmel ST timer support" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select TIMER_OF |
| select MFD_SYSCON |
| help |
| Support for the Atmel ST timer. |
| |
| config CLKSRC_EXYNOS_MCT |
| bool "Exynos multi core timer driver" if COMPILE_TEST |
| depends on ARM || ARM64 |
| help |
| Support for Multi Core Timer controller on Exynos SoCs. |
| |
| config CLKSRC_SAMSUNG_PWM |
| bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST |
| depends on HAS_IOMEM |
| 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 HAS_IOMEM |
| select CLKSRC_MMIO |
| help |
| Support for Freescale FlexTimer Module (FTM) timer. |
| |
| config VF_PIT_TIMER |
| bool |
| select CLKSRC_MMIO |
| help |
| Support for Period Interrupt Timer on Freescale Vybrid Family SoCs. |
| |
| config OXNAS_RPS_TIMER |
| bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST |
| select TIMER_OF |
| select CLKSRC_MMIO |
| help |
| This enables support for the Oxford Semiconductor OXNAS RPS timers. |
| |
| config SYS_SUPPORTS_SH_CMT |
| bool |
| |
| config MTK_TIMER |
| bool "Mediatek timer driver" if COMPILE_TEST |
| depends on HAS_IOMEM |
| select TIMER_OF |
| select CLKSRC_MMIO |
| help |
| Support for Mediatek timer driver. |
| |
| config SPRD_TIMER |
| bool "Spreadtrum timer driver" if EXPERT |
| depends on HAS_IOMEM |
| depends on (ARCH_SPRD || COMPILE_TEST) |
| default ARCH_SPRD |
| select TIMER_OF |
| help |
| Enables support for the Spreadtrum timer driver. |
| |
| config SYS_SUPPORTS_SH_MTU2 |
| bool |
| |
| config SYS_SUPPORTS_SH_TMU |
| bool |
| |
| config SYS_SUPPORTS_EM_STI |
| bool |
| |
| config CLKSRC_JCORE_PIT |
| bool "J-Core PIT timer driver" if COMPILE_TEST |
| depends on OF |
| depends on HAS_IOMEM |
| select CLKSRC_MMIO |
| help |
| This enables build of clocksource and clockevent driver for |
| the integrated PIT in the J-Core synthesizable, open source SoC. |
| |
| config SH_TIMER_CMT |
| bool "Renesas CMT timer driver" if COMPILE_TEST |
| 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 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 RENESAS_OSTM |
| bool "Renesas OSTM timer driver" if COMPILE_TEST |
| select CLKSRC_MMIO |
| help |
| Enables the support for the Renesas OSTM. |
| |
| config SH_TIMER_TMU |
| bool "Renesas TMU timer driver" if COMPILE_TEST |
| 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 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 TIMER_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" if COMPILE_TEST |
| depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET |
| select TIMER_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 TIMER_OF |
| |
| config CLKSRC_TANGO_XTAL |
| bool "Clocksource for Tango SoC" if COMPILE_TEST |
| depends on ARM |
| select TIMER_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 HAS_IOMEM |
| 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 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 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 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_IMX_TPM |
| bool "Clocksource using i.MX TPM" if COMPILE_TEST |
| depends on ARM && CLKDEV_LOOKUP |
| select CLKSRC_MMIO |
| help |
| Enable this option to use IMX Timer/PWM Module (TPM) timer as |
| clocksource. |
| |
| config CLKSRC_ST_LPC |
| bool "Low power clocksource found in the LPC" if COMPILE_TEST |
| select TIMER_OF if OF |
| depends on HAS_IOMEM |
| select CLKSRC_MMIO |
| help |
| Enable this option to use the Low Power controller timer |
| as clocksource. |
| |
| config ATCPIT100_TIMER |
| bool "ATCPIT100 timer driver" |
| depends on NDS32 || COMPILE_TEST |
| depends on HAS_IOMEM |
| select TIMER_OF |
| default NDS32 |
| help |
| This option enables support for the Andestech ATCPIT100 timers. |
| |
| config RISCV_TIMER |
| bool "Timer for the RISC-V platform" |
| depends on RISCV |
| default y |
| select TIMER_PROBE |
| select TIMER_OF |
| help |
| This enables the per-hart timer built into all RISC-V systems, which |
| is accessed via both the SBI and the rdcycle instruction. This is |
| required for all RISC-V systems. |
| |
| endmenu |