drivers/clocksource/Kconfig

   1 menu "Clock Source drivers"
   2         depends on !ARCH_USES_GETTIMEOFFSET
   3
   4 config CLKSRC_OF
   5         bool
   6         select CLKSRC_PROBE
   7
   8 config CLKSRC_ACPI
   9         bool
  10         select CLKSRC_PROBE
  11
  12 config CLKSRC_PROBE
  13         bool
  14
  15 config CLKSRC_I8253
  16         bool
  17
  18 config CLKEVT_I8253
  19         bool
  20
  21 config I8253_LOCK
  22         bool
  23
  24 config CLKBLD_I8253
  25         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  26
  27 config CLKSRC_MMIO
  28         bool
  29
  30 config DIGICOLOR_TIMER
  31         bool "Digicolor timer driver" if COMPILE_TEST
  32         help
  33           Enables the support for the digicolor timer driver.
  34
  35 config DW_APB_TIMER
  36         bool "DW APB timer driver" if COMPILE_TEST
  37         help
  38           Enables the support for the dw_apb timer.
  39
  40 config DW_APB_TIMER_OF
  41         bool
  42         select DW_APB_TIMER
  43         select CLKSRC_OF
  44
  45 config ROCKCHIP_TIMER
  46         bool "Rockchip timer driver" if COMPILE_TEST
  47         depends on ARM || ARM64
  48         select CLKSRC_OF
  49         help
  50           Enables the support for the rockchip timer driver.
  51
  52 config ARMADA_370_XP_TIMER
  53         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  54         depends on ARM
  55         select CLKSRC_OF
  56         help
  57           Enables the support for the Armada 370 and XP timer driver.
  58
  59 config MESON6_TIMER
  60         bool "Meson6 timer driver" if COMPILE_TEST
  61         select CLKSRC_MMIO
  62         help
  63           Enables the support for the Meson6 timer driver.
  64
  65 config ORION_TIMER
  66         bool "Orion timer driver" if COMPILE_TEST
  67         depends on ARM
  68         select CLKSRC_OF
  69         select CLKSRC_MMIO
  70         help
  71           Enables the support for the Orion timer driver
  72
  73 config SUN4I_TIMER
  74         bool "Sun4i timer driver" if COMPILE_TEST
  75         select CLKSRC_MMIO
  76         help
  77           Enables support for the Sun4i timer.
  78
  79 config SUN5I_HSTIMER
  80         bool "Sun5i timer driver" if COMPILE_TEST
  81         select CLKSRC_MMIO
  82         depends on COMMON_CLK
  83         help
  84           Enables support the Sun5i timer.
  85
  86 config TEGRA_TIMER
  87         bool "Tegra timer driver" if COMPILE_TEST
  88         depends on ARM
  89         help
  90           Enables support for the Tegra driver.
  91
  92 config VT8500_TIMER
  93         bool "VT8500 timer driver" if COMPILE_TEST
  94         help
  95           Enables support for the VT8500 driver.
  96
  97 config CADENCE_TTC_TIMER
  98         bool "Cadence TTC timer driver" if COMPILE_TEST
  99         depends on COMMON_CLK
 100         help
 101           Enables support for the cadence ttc driver.
 102
 103 config ASM9260_TIMER
 104         bool "ASM9260 timer driver" if COMPILE_TEST
 105         select CLKSRC_MMIO
 106         select CLKSRC_OF
 107         help
 108           Enables support for the ASM9260 timer.
 109
 110 config CLKSRC_NOMADIK_MTU
 111         bool "Nomakdik clocksource driver" if COMPILE_TEST
 112         depends on ARM
 113         select CLKSRC_MMIO
 114         help
 115           Support for Multi Timer Unit. MTU provides access
 116           to multiple interrupt generating programmable
 117           32-bit free running decrementing counters.
 118
 119 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 120         bool
 121         depends on CLKSRC_NOMADIK_MTU
 122         help
 123           Use the Multi Timer Unit as the sched_clock.
 124
 125 config CLKSRC_DBX500_PRCMU
 126         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 127         help
 128           Use the always on PRCMU Timer as clocksource
 129
 130 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 131         bool "Clocksource PRCMU Timer sched_clock"
 132         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 133         default y
 134         help
 135           Use the always on PRCMU Timer as sched_clock
 136
 137 config CLKSRC_EFM32
 138         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 139         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 140         select CLKSRC_MMIO
 141         default ARCH_EFM32
 142         help
 143           Support to use the timers of EFM32 SoCs as clock source and clock
 144           event device.
 145
 146 config CLKSRC_LPC32XX
 147         bool "Clocksource for LPC32XX" if COMPILE_TEST
 148         select CLKSRC_MMIO
 149         select CLKSRC_OF
 150         help
 151           Support for the LPC32XX clocksource.
 152
 153 config CLKSRC_PISTACHIO
 154         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 155         select CLKSRC_OF
 156         help
 157           Enables the clocksource for the Pistachio SoC.
 158
 159 config CLKSRC_TI_32K
 160         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 161         depends on GENERIC_SCHED_CLOCK
 162         select CLKSRC_OF if OF
 163         help
 164           This option enables support for Texas Instruments 32.768 Hz clocksource
 165           available on many OMAP-like platforms.
 166
 167 config CLKSRC_STM32
 168         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 169         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 170         select CLKSRC_MMIO
 171
 172 config ARM_ARCH_TIMER
 173         bool
 174         select CLKSRC_OF if OF
 175         select CLKSRC_ACPI if ACPI
 176
 177 config ARM_ARCH_TIMER_EVTSTREAM
 178         bool "Support for ARM architected timer event stream generation"
 179         default y if ARM_ARCH_TIMER
 180         depends on ARM_ARCH_TIMER
 181         help
 182           This option enables support for event stream generation based on
 183           the ARM architected timer. It is used for waking up CPUs executing
 184           the wfe instruction at a frequency represented as a power-of-2
 185           divisor of the clock rate.
 186           The main use of the event stream is wfe-based timeouts of userspace
 187           locking implementations. It might also be useful for imposing timeout
 188           on wfe to safeguard against any programming errors in case an expected
 189           event is not generated.
 190           This must be disabled for hardware validation purposes to detect any
 191           hardware anomalies of missing events.
 192
 193 config ARM_GLOBAL_TIMER
 194         bool
 195         select CLKSRC_OF if OF
 196         help
 197           This options enables support for the ARM global timer unit
 198
 199 config ARM_TIMER_SP804
 200         bool "Support for Dual Timer SP804 module"
 201         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 202         select CLKSRC_MMIO
 203         select CLKSRC_OF if OF
 204
 205 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 206         bool
 207         depends on ARM_GLOBAL_TIMER
 208         default y
 209         help
 210          Use ARM global timer clock source as sched_clock
 211
 212 config ARMV7M_SYSTICK
 213         bool
 214         select CLKSRC_OF if OF
 215         select CLKSRC_MMIO
 216         help
 217           This options enables support for the ARMv7M system timer unit
 218
 219 config ATMEL_PIT
 220         select CLKSRC_OF if OF
 221         def_bool SOC_AT91SAM9 || SOC_SAMA5
 222
 223 config ATMEL_ST
 224         bool
 225         select CLKSRC_OF
 226         select MFD_SYSCON
 227
 228 config CLKSRC_METAG_GENERIC
 229         def_bool y if METAG
 230         help
 231           This option enables support for the Meta per-thread timers.
 232
 233 config CLKSRC_EXYNOS_MCT
 234         bool "Exynos multi core timer driver" if COMPILE_TEST
 235         depends on ARM
 236         help
 237           Support for Multi Core Timer controller on Exynos SoCs.
 238
 239 config CLKSRC_SAMSUNG_PWM
 240         bool "PWM timer drvier for Samsung S3C, S5P" if COMPILE_TEST
 241         help
 242           This is a new clocksource driver for the PWM timer found in
 243           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 244           for all devicetree enabled platforms. This driver will be
 245           needed only on systems that do not have the Exynos MCT available.
 246
 247 config FSL_FTM_TIMER
 248         bool
 249         help
 250           Support for Freescale FlexTimer Module (FTM) timer.
 251
 252 config VF_PIT_TIMER
 253         bool
 254         help
 255           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 256
 257 config SYS_SUPPORTS_SH_CMT
 258         bool
 259
 260 config MTK_TIMER
 261         bool "Mediatek timer driver" if COMPILE_TEST
 262         select CLKSRC_OF
 263         select CLKSRC_MMIO
 264         help
 265           Support for Mediatek timer driver.
 266
 267 config SYS_SUPPORTS_SH_MTU2
 268         bool
 269
 270 config SYS_SUPPORTS_SH_TMU
 271         bool
 272
 273 config SYS_SUPPORTS_EM_STI
 274         bool
 275
 276 config SH_TIMER_CMT
 277         bool "Renesas CMT timer driver" if COMPILE_TEST
 278         depends on GENERIC_CLOCKEVENTS
 279         depends on HAS_IOMEM
 280         default SYS_SUPPORTS_SH_CMT
 281         help
 282           This enables build of a clocksource and clockevent driver for
 283           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 284           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 285
 286 config SH_TIMER_MTU2
 287         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 288         depends on GENERIC_CLOCKEVENTS
 289         depends on HAS_IOMEM
 290         default SYS_SUPPORTS_SH_MTU2
 291         help
 292           This enables build of a clockevent driver for the Multi-Function
 293           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 294           This hardware comes with 16 bit-timer registers.
 295
 296 config SH_TIMER_TMU
 297         bool "Renesas TMU timer driver" if COMPILE_TEST
 298         depends on GENERIC_CLOCKEVENTS
 299         depends on HAS_IOMEM
 300         default SYS_SUPPORTS_SH_TMU
 301         help
 302           This enables build of a clocksource and clockevent driver for
 303           the 32-bit Timer Unit (TMU) hardware available on a wide range
 304           SoCs from Renesas.
 305
 306 config EM_TIMER_STI
 307         bool "Renesas STI timer driver" if COMPILE_TEST
 308         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 309         default SYS_SUPPORTS_EM_STI
 310         help
 311           This enables build of a clocksource and clockevent driver for
 312           the 48-bit System Timer (STI) hardware available on a SoCs
 313           such as EMEV2 from former NEC Electronics.
 314
 315 config CLKSRC_QCOM
 316         bool "Qualcomm MSM timer" if COMPILE_TEST
 317         depends on ARM
 318         select CLKSRC_OF
 319         help
 320           This enables the clocksource and the per CPU clockevent driver for the
 321           Qualcomm SoCs.
 322
 323 config CLKSRC_VERSATILE
 324         bool "ARM Versatile (Express) reference platforms clock source"
 325         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 326         select CLKSRC_OF
 327         default y if MFD_VEXPRESS_SYSREG
 328         help
 329           This option enables clock source based on free running
 330           counter available in the "System Registers" block of
 331           ARM Versatile, RealView and Versatile Express reference
 332           platforms.
 333
 334 config CLKSRC_MIPS_GIC
 335         bool
 336         depends on MIPS_GIC
 337         select CLKSRC_OF
 338
 339 config CLKSRC_TANGO_XTAL
 340         bool "Clocksource for Tango SoC" if COMPILE_TEST
 341         depends on ARM
 342         select CLKSRC_OF
 343         help
 344           This enables the clocksource for Tango SoC
 345
 346 config CLKSRC_PXA
 347         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 348         depends on GENERIC_CLOCKEVENTS
 349         select CLKSRC_MMIO
 350         help
 351           This enables OST0 support available on PXA and SA-11x0
 352           platforms.
 353
 354 config H8300_TMR16
 355         bool
 356
 357 config H8300_TPU
 358         bool
 359
 360 config CLKSRC_IMX_GPT
 361         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 362         depends on ARM && CLKDEV_LOOKUP
 363         select CLKSRC_MMIO
 364
 365 config CLKSRC_ST_LPC
 366         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 367         select CLKSRC_OF if OF
 368         help
 369           Enable this option to use the Low Power controller timer
 370           as clocksource.
 371
 372 endmenu