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