drivers/clocksource/Kconfig

   1 menu "Clock Source drivers"
   2
   3 config CLKSRC_OF
   4         bool
   5
   6 config CLKSRC_I8253
   7         bool
   8
   9 config CLKEVT_I8253
  10         bool
  11
  12 config I8253_LOCK
  13         bool
  14
  15 config CLKBLD_I8253
  16         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  17
  18 config CLKSRC_MMIO
  19         bool
  20
  21 config DIGICOLOR_TIMER
  22         bool
  23
  24 config DW_APB_TIMER
  25         bool
  26
  27 config DW_APB_TIMER_OF
  28         bool
  29         select DW_APB_TIMER
  30         select CLKSRC_OF
  31
  32 config ROCKCHIP_TIMER
  33         bool
  34         select CLKSRC_OF
  35
  36 config ARMADA_370_XP_TIMER
  37         bool
  38         select CLKSRC_OF
  39
  40 config MESON6_TIMER
  41         bool
  42         select CLKSRC_MMIO
  43
  44 config ORION_TIMER
  45         select CLKSRC_OF
  46         select CLKSRC_MMIO
  47         bool
  48
  49 config SUN4I_TIMER
  50         select CLKSRC_MMIO
  51         bool
  52
  53 config SUN5I_HSTIMER
  54         select CLKSRC_MMIO
  55         bool
  56
  57 config TEGRA_TIMER
  58         bool
  59
  60 config VT8500_TIMER
  61         bool
  62
  63 config CADENCE_TTC_TIMER
  64         bool
  65
  66 config ASM9260_TIMER
  67         bool
  68         select CLKSRC_MMIO
  69         select CLKSRC_OF
  70
  71 config CLKSRC_NOMADIK_MTU
  72         bool
  73         depends on (ARCH_NOMADIK || ARCH_U8500)
  74         select CLKSRC_MMIO
  75         help
  76           Support for Multi Timer Unit. MTU provides access
  77           to multiple interrupt generating programmable
  78           32-bit free running decrementing counters.
  79
  80 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
  81         bool
  82         depends on CLKSRC_NOMADIK_MTU
  83         help
  84           Use the Multi Timer Unit as the sched_clock.
  85
  86 config CLKSRC_DBX500_PRCMU
  87         bool "Clocksource PRCMU Timer"
  88         depends on UX500_SOC_DB8500
  89         default y
  90         help
  91           Use the always on PRCMU Timer as clocksource
  92
  93 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
  94         bool "Clocksource PRCMU Timer sched_clock"
  95         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
  96         default y
  97         help
  98           Use the always on PRCMU Timer as sched_clock
  99
 100 config CLKSRC_EFM32
 101         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 102         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 103         select CLKSRC_MMIO
 104         default ARCH_EFM32
 105         help
 106           Support to use the timers of EFM32 SoCs as clock source and clock
 107           event device.
 108
 109 config CLKSRC_LPC32XX
 110         bool
 111         select CLKSRC_MMIO
 112         select CLKSRC_OF
 113
 114 config CLKSRC_STM32
 115         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 116         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 117         select CLKSRC_MMIO
 118
 119 config ARM_ARCH_TIMER
 120         bool
 121         select CLKSRC_OF if OF
 122
 123 config ARM_ARCH_TIMER_EVTSTREAM
 124         bool "Support for ARM architected timer event stream generation"
 125         default y if ARM_ARCH_TIMER
 126         depends on ARM_ARCH_TIMER
 127         help
 128           This option enables support for event stream generation based on
 129           the ARM architected timer. It is used for waking up CPUs executing
 130           the wfe instruction at a frequency represented as a power-of-2
 131           divisor of the clock rate.
 132           The main use of the event stream is wfe-based timeouts of userspace
 133           locking implementations. It might also be useful for imposing timeout
 134           on wfe to safeguard against any programming errors in case an expected
 135           event is not generated.
 136           This must be disabled for hardware validation purposes to detect any
 137           hardware anomalies of missing events.
 138
 139 config ARM_GLOBAL_TIMER
 140         bool
 141         select CLKSRC_OF if OF
 142         help
 143           This options enables support for the ARM global timer unit
 144
 145 config ARM_TIMER_SP804
 146         bool "Support for Dual Timer SP804 module"
 147         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 148         select CLKSRC_MMIO
 149         select CLKSRC_OF if OF
 150
 151 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 152         bool
 153         depends on ARM_GLOBAL_TIMER
 154         default y
 155         help
 156          Use ARM global timer clock source as sched_clock
 157
 158 config ARMV7M_SYSTICK
 159         bool
 160         select CLKSRC_OF if OF
 161         select CLKSRC_MMIO
 162         help
 163           This options enables support for the ARMv7M system timer unit
 164
 165 config ATMEL_PIT
 166         select CLKSRC_OF if OF
 167         def_bool SOC_AT91SAM9 || SOC_SAMA5
 168
 169 config ATMEL_ST
 170         bool
 171         select CLKSRC_OF
 172         select MFD_SYSCON
 173
 174 config CLKSRC_METAG_GENERIC
 175         def_bool y if METAG
 176         help
 177           This option enables support for the Meta per-thread timers.
 178
 179 config CLKSRC_EXYNOS_MCT
 180         def_bool y if ARCH_EXYNOS
 181         depends on !ARM64
 182         help
 183           Support for Multi Core Timer controller on Exynos SoCs.
 184
 185 config CLKSRC_SAMSUNG_PWM
 186         bool
 187         help
 188           This is a new clocksource driver for the PWM timer found in
 189           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 190           for all devicetree enabled platforms. This driver will be
 191           needed only on systems that do not have the Exynos MCT available.
 192
 193 config FSL_FTM_TIMER
 194         bool
 195         help
 196           Support for Freescale FlexTimer Module (FTM) timer.
 197
 198 config VF_PIT_TIMER
 199         bool
 200         help
 201           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 202
 203 config SYS_SUPPORTS_SH_CMT
 204         bool
 205
 206 config MTK_TIMER
 207         select CLKSRC_OF
 208         select CLKSRC_MMIO
 209         bool
 210
 211 config SYS_SUPPORTS_SH_MTU2
 212         bool
 213
 214 config SYS_SUPPORTS_SH_TMU
 215         bool
 216
 217 config SYS_SUPPORTS_EM_STI
 218         bool
 219
 220 config SH_TIMER_CMT
 221         bool "Renesas CMT timer driver" if COMPILE_TEST
 222         depends on GENERIC_CLOCKEVENTS
 223         depends on HAS_IOMEM
 224         default SYS_SUPPORTS_SH_CMT
 225         help
 226           This enables build of a clocksource and clockevent driver for
 227           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 228           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 229
 230 config SH_TIMER_MTU2
 231         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 232         depends on GENERIC_CLOCKEVENTS
 233         depends on HAS_IOMEM
 234         default SYS_SUPPORTS_SH_MTU2
 235         help
 236           This enables build of a clockevent driver for the Multi-Function
 237           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 238           This hardware comes with 16 bit-timer registers.
 239
 240 config SH_TIMER_TMU
 241         bool "Renesas TMU timer driver" if COMPILE_TEST
 242         depends on GENERIC_CLOCKEVENTS
 243         depends on HAS_IOMEM
 244         default SYS_SUPPORTS_SH_TMU
 245         help
 246           This enables build of a clocksource and clockevent driver for
 247           the 32-bit Timer Unit (TMU) hardware available on a wide range
 248           SoCs from Renesas.
 249
 250 config EM_TIMER_STI
 251         bool "Renesas STI timer driver" if COMPILE_TEST
 252         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 253         default SYS_SUPPORTS_EM_STI
 254         help
 255           This enables build of a clocksource and clockevent driver for
 256           the 48-bit System Timer (STI) hardware available on a SoCs
 257           such as EMEV2 from former NEC Electronics.
 258
 259 config CLKSRC_QCOM
 260         bool
 261
 262 config CLKSRC_VERSATILE
 263         bool "ARM Versatile (Express) reference platforms clock source"
 264         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 265         select CLKSRC_OF
 266         default y if MFD_VEXPRESS_SYSREG
 267         help
 268           This option enables clock source based on free running
 269           counter available in the "System Registers" block of
 270           ARM Versatile, RealView and Versatile Express reference
 271           platforms.
 272
 273 config CLKSRC_MIPS_GIC
 274         bool
 275         depends on MIPS_GIC
 276         select CLKSRC_OF
 277
 278 config CLKSRC_PXA
 279         def_bool y if ARCH_PXA || ARCH_SA1100
 280         select CLKSRC_OF if USE_OF
 281         help
 282           This enables OST0 support available on PXA and SA-11x0
 283           platforms.
 284
 285 config H8300_TMR16
 286         bool
 287
 288 config H8300_TPU
 289         bool
 290
 291 config CLKSRC_IMX_GPT
 292         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 293         depends on ARM && CLKDEV_LOOKUP
 294         select CLKSRC_MMIO
 295
 296 endmenu