drivers/clocksource/Kconfig

   1 config CLKSRC_OF
   2         bool
   3
   4 config CLKSRC_I8253
   5         bool
   6
   7 config CLKEVT_I8253
   8         bool
   9
  10 config I8253_LOCK
  11         bool
  12
  13 config CLKBLD_I8253
  14         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  15
  16 config CLKSRC_MMIO
  17         bool
  18
  19 config DW_APB_TIMER
  20         bool
  21
  22 config DW_APB_TIMER_OF
  23         bool
  24         select DW_APB_TIMER
  25         select CLKSRC_OF
  26
  27 config ARMADA_370_XP_TIMER
  28         bool
  29         select CLKSRC_OF
  30
  31 config ORION_TIMER
  32         select CLKSRC_OF
  33         select CLKSRC_MMIO
  34         bool
  35
  36 config SUN4I_TIMER
  37         select CLKSRC_MMIO
  38         bool
  39
  40 config SUN5I_HSTIMER
  41         select CLKSRC_MMIO
  42         bool
  43
  44 config VT8500_TIMER
  45         bool
  46
  47 config CADENCE_TTC_TIMER
  48         bool
  49
  50 config CLKSRC_NOMADIK_MTU
  51         bool
  52         depends on (ARCH_NOMADIK || ARCH_U8500)
  53         select CLKSRC_MMIO
  54         help
  55           Support for Multi Timer Unit. MTU provides access
  56           to multiple interrupt generating programmable
  57           32-bit free running decrementing counters.
  58
  59 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
  60         bool
  61         depends on CLKSRC_NOMADIK_MTU
  62         help
  63           Use the Multi Timer Unit as the sched_clock.
  64
  65 config CLKSRC_DBX500_PRCMU
  66         bool "Clocksource PRCMU Timer"
  67         depends on UX500_SOC_DB8500
  68         default y
  69         help
  70           Use the always on PRCMU Timer as clocksource
  71
  72 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
  73         bool "Clocksource PRCMU Timer sched_clock"
  74         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
  75         default y
  76         help
  77           Use the always on PRCMU Timer as sched_clock
  78
  79 config CLKSRC_EFM32
  80         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
  81         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
  82         default ARCH_EFM32
  83         help
  84           Support to use the timers of EFM32 SoCs as clock source and clock
  85           event device.
  86
  87 config ARM_ARCH_TIMER
  88         bool
  89         select CLKSRC_OF if OF
  90
  91 config ARM_ARCH_TIMER_EVTSTREAM
  92         bool "Support for ARM architected timer event stream generation"
  93         default y if ARM_ARCH_TIMER
  94         help
  95           This option enables support for event stream generation based on
  96           the ARM architected timer. It is used for waking up CPUs executing
  97           the wfe instruction at a frequency represented as a power-of-2
  98           divisor of the clock rate.
  99           The main use of the event stream is wfe-based timeouts of userspace
 100           locking implementations. It might also be useful for imposing timeout
 101           on wfe to safeguard against any programming errors in case an expected
 102           event is not generated.
 103           This must be disabled for hardware validation purposes to detect any
 104           hardware anomalies of missing events.
 105
 106 config ARM_GLOBAL_TIMER
 107         bool
 108         select CLKSRC_OF if OF
 109         help
 110           This options enables support for the ARM global timer unit
 111
 112 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 113         bool
 114         depends on ARM_GLOBAL_TIMER
 115         default y
 116         help
 117          Use ARM global timer clock source as sched_clock
 118
 119 config CLKSRC_METAG_GENERIC
 120         def_bool y if METAG
 121         help
 122           This option enables support for the Meta per-thread timers.
 123
 124 config CLKSRC_EXYNOS_MCT
 125         def_bool y if ARCH_EXYNOS
 126         help
 127           Support for Multi Core Timer controller on Exynos SoCs.
 128
 129 config CLKSRC_SAMSUNG_PWM
 130         bool
 131         help
 132           This is a new clocksource driver for the PWM timer found in
 133           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 134           for all devicetree enabled platforms. This driver will be
 135           needed only on systems that do not have the Exynos MCT available.
 136
 137 config VF_PIT_TIMER
 138         bool
 139         help
 140           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.