14 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
22 config DW_APB_TIMER_OF
27 config ARMADA_370_XP_TIMER
42 config CADENCE_TTC_TIMER
45 config CLKSRC_NOMADIK_MTU
47 depends on (ARCH_NOMADIK || ARCH_U8500)
50 Support for Multi Timer Unit. MTU provides access
51 to multiple interrupt generating programmable
52 32-bit free running decrementing counters.
54 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
56 depends on CLKSRC_NOMADIK_MTU
58 Use the Multi Timer Unit as the sched_clock.
60 config CLKSRC_DBX500_PRCMU
61 bool "Clocksource PRCMU Timer"
62 depends on UX500_SOC_DB8500
65 Use the always on PRCMU Timer as clocksource
67 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
68 bool "Clocksource PRCMU Timer sched_clock"
69 depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
72 Use the always on PRCMU Timer as sched_clock
76 select CLKSRC_OF if OF
78 config ARM_ARCH_TIMER_EVTSTREAM
79 bool "Support for ARM architected timer event stream generation"
80 default y if ARM_ARCH_TIMER
82 This option enables support for event stream generation based on
83 the ARM architected timer. It is used for waking up CPUs executing
84 the wfe instruction at a frequency represented as a power-of-2
85 divisor of the clock rate.
86 The main use of the event stream is wfe-based timeouts of userspace
87 locking implementations. It might also be useful for imposing timeout
88 on wfe to safeguard against any programming errors in case an expected
89 event is not generated.
90 This must be disabled for hardware validation purposes to detect any
91 hardware anomalies of missing events.
93 config ARM_GLOBAL_TIMER
95 select CLKSRC_OF if OF
97 This options enables support for the ARM global timer unit
99 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
101 depends on ARM_GLOBAL_TIMER
104 Use ARM global timer clock source as sched_clock
106 config CLKSRC_METAG_GENERIC
109 This option enables support for the Meta per-thread timers.
111 config CLKSRC_EXYNOS_MCT
112 def_bool y if ARCH_EXYNOS
114 Support for Multi Core Timer controller on Exynos SoCs.
116 config CLKSRC_SAMSUNG_PWM
119 This is a new clocksource driver for the PWM timer found in
120 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
121 for all devicetree enabled platforms. This driver will be
122 needed only on systems that do not have the Exynos MCT available.
127 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.