14 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
22 config DW_APB_TIMER_OF
27 config ARMADA_370_XP_TIMER
41 config CADENCE_TTC_TIMER
44 config CLKSRC_NOMADIK_MTU
46 depends on (ARCH_NOMADIK || ARCH_U8500)
49 Support for Multi Timer Unit. MTU provides access
50 to multiple interrupt generating programmable
51 32-bit free running decrementing counters.
53 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
55 depends on CLKSRC_NOMADIK_MTU
57 Use the Multi Timer Unit as the sched_clock.
59 config CLKSRC_DBX500_PRCMU
60 bool "Clocksource PRCMU Timer"
61 depends on UX500_SOC_DB8500
64 Use the always on PRCMU Timer as clocksource
66 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
67 bool "Clocksource PRCMU Timer sched_clock"
68 depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
71 Use the always on PRCMU Timer as sched_clock
75 select CLKSRC_OF if OF
77 config ARM_ARCH_TIMER_EVTSTREAM
78 bool "Support for ARM architected timer event stream generation"
79 default y if ARM_ARCH_TIMER
81 This option enables support for event stream generation based on
82 the ARM architected timer. It is used for waking up CPUs executing
83 the wfe instruction at a frequency represented as a power-of-2
84 divisor of the clock rate.
85 The main use of the event stream is wfe-based timeouts of userspace
86 locking implementations. It might also be useful for imposing timeout
87 on wfe to safeguard against any programming errors in case an expected
88 event is not generated.
89 This must be disabled for hardware validation purposes to detect any
90 hardware anomalies of missing events.
92 config ARM_GLOBAL_TIMER
94 select CLKSRC_OF if OF
96 This options enables support for the ARM global timer unit
98 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
100 depends on ARM_GLOBAL_TIMER
103 Use ARM global timer clock source as sched_clock
105 config CLKSRC_METAG_GENERIC
108 This option enables support for the Meta per-thread timers.
110 config CLKSRC_EXYNOS_MCT
111 def_bool y if ARCH_EXYNOS
113 Support for Multi Core Timer controller on Exynos SoCs.
115 config CLKSRC_SAMSUNG_PWM
118 This is a new clocksource driver for the PWM timer found in
119 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
120 for all devicetree enabled platforms. This driver will be
121 needed only on systems that do not have the Exynos MCT available.
126 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.