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         depends on GENERIC_CLOCKEVENTS
  33         select CLKSRC_MMIO
  34         depends on HAS_IOMEM
  35         help
  36           Enables the support for the digicolor timer driver.
  37
  38 config DW_APB_TIMER
  39         bool "DW APB timer driver" if COMPILE_TEST
  40         depends on GENERIC_CLOCKEVENTS
  41         help
  42           Enables the support for the dw_apb timer.
  43
  44 config DW_APB_TIMER_OF
  45         bool
  46         select DW_APB_TIMER
  47         select CLKSRC_OF
  48
  49 config ROCKCHIP_TIMER
  50         bool "Rockchip timer driver" if COMPILE_TEST
  51         depends on ARM || ARM64
  52         select CLKSRC_OF
  53         help
  54           Enables the support for the rockchip timer driver.
  55
  56 config ARMADA_370_XP_TIMER
  57         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  58         depends on ARM
  59         select CLKSRC_OF
  60         select CLKSRC_MMIO
  61         help
  62           Enables the support for the Armada 370 and XP timer driver.
  63
  64 config MESON6_TIMER
  65         bool "Meson6 timer driver" if COMPILE_TEST
  66         depends on GENERIC_CLOCKEVENTS
  67         select CLKSRC_MMIO
  68         help
  69           Enables the support for the Meson6 timer driver.
  70
  71 config ORION_TIMER
  72         bool "Orion timer driver" if COMPILE_TEST
  73         depends on ARM
  74         select CLKSRC_OF
  75         select CLKSRC_MMIO
  76         help
  77           Enables the support for the Orion timer driver
  78
  79 config SUN4I_TIMER
  80         bool "Sun4i timer driver" if COMPILE_TEST
  81         depends on GENERIC_CLOCKEVENTS
  82         depends on HAS_IOMEM
  83         select CLKSRC_MMIO
  84         help
  85           Enables support for the Sun4i timer.
  86
  87 config SUN5I_HSTIMER
  88         bool "Sun5i timer driver" if COMPILE_TEST
  89         select CLKSRC_MMIO
  90         depends on COMMON_CLK
  91         help
  92           Enables support the Sun5i timer.
  93
  94 config TEGRA_TIMER
  95         bool "Tegra timer driver" if COMPILE_TEST
  96         select CLKSRC_MMIO
  97         depends on ARM
  98         help
  99           Enables support for the Tegra driver.
 100
 101 config VT8500_TIMER
 102         bool "VT8500 timer driver" if COMPILE_TEST
 103         depends on GENERIC_CLOCKEVENTS
 104         depends on HAS_IOMEM
 105         help
 106           Enables support for the VT8500 driver.
 107
 108 config CADENCE_TTC_TIMER
 109         bool "Cadence TTC timer driver" if COMPILE_TEST
 110         depends on COMMON_CLK
 111         help
 112           Enables support for the cadence ttc driver.
 113
 114 config ASM9260_TIMER
 115         bool "ASM9260 timer driver" if COMPILE_TEST
 116         depends on GENERIC_CLOCKEVENTS
 117         select CLKSRC_MMIO
 118         select CLKSRC_OF
 119         help
 120           Enables support for the ASM9260 timer.
 121
 122 config CLKSRC_NOMADIK_MTU
 123         bool "Nomakdik clocksource driver" if COMPILE_TEST
 124         depends on ARM
 125         select CLKSRC_MMIO
 126         help
 127           Support for Multi Timer Unit. MTU provides access
 128           to multiple interrupt generating programmable
 129           32-bit free running decrementing counters.
 130
 131 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 132         bool
 133         depends on CLKSRC_NOMADIK_MTU
 134         help
 135           Use the Multi Timer Unit as the sched_clock.
 136
 137 config CLKSRC_DBX500_PRCMU
 138         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 139         depends on GENERIC_CLOCKEVENTS
 140         depends on HAS_IOMEM
 141         help
 142           Use the always on PRCMU Timer as clocksource
 143
 144 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 145         bool "Clocksource PRCMU Timer sched_clock"
 146         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 147         default y
 148         help
 149           Use the always on PRCMU Timer as sched_clock
 150
 151 config CLKSRC_EFM32
 152         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 153         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 154         select CLKSRC_MMIO
 155         default ARCH_EFM32
 156         help
 157           Support to use the timers of EFM32 SoCs as clock source and clock
 158           event device.
 159
 160 config CLKSRC_LPC32XX
 161         bool "Clocksource for LPC32XX" if COMPILE_TEST
 162         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 163         select CLKSRC_MMIO
 164         select CLKSRC_OF
 165         help
 166           Support for the LPC32XX clocksource.
 167
 168 config CLKSRC_PISTACHIO
 169         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 170         depends on HAS_IOMEM
 171         select CLKSRC_OF
 172         help
 173           Enables the clocksource for the Pistachio SoC.
 174
 175 config CLKSRC_TI_32K
 176         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 177         depends on GENERIC_SCHED_CLOCK
 178         select CLKSRC_OF if OF
 179         help
 180           This option enables support for Texas Instruments 32.768 Hz clocksource
 181           available on many OMAP-like platforms.
 182
 183 config CLKSRC_STM32
 184         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 185         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 186         select CLKSRC_MMIO
 187
 188 config ARM_ARCH_TIMER
 189         bool
 190         select CLKSRC_OF if OF
 191         select CLKSRC_ACPI if ACPI
 192
 193 config ARM_ARCH_TIMER_EVTSTREAM
 194         bool "Support for ARM architected timer event stream generation"
 195         default y if ARM_ARCH_TIMER
 196         depends on ARM_ARCH_TIMER
 197         help
 198           This option enables support for event stream generation based on
 199           the ARM architected timer. It is used for waking up CPUs executing
 200           the wfe instruction at a frequency represented as a power-of-2
 201           divisor of the clock rate.
 202           The main use of the event stream is wfe-based timeouts of userspace
 203           locking implementations. It might also be useful for imposing timeout
 204           on wfe to safeguard against any programming errors in case an expected
 205           event is not generated.
 206           This must be disabled for hardware validation purposes to detect any
 207           hardware anomalies of missing events.
 208
 209 config ARM_GLOBAL_TIMER
 210         bool
 211         select CLKSRC_OF if OF
 212         help
 213           This options enables support for the ARM global timer unit
 214
 215 config ARM_TIMER_SP804
 216         bool "Support for Dual Timer SP804 module"
 217         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 218         select CLKSRC_MMIO
 219         select CLKSRC_OF if OF
 220
 221 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 222         bool
 223         depends on ARM_GLOBAL_TIMER
 224         default y
 225         help
 226          Use ARM global timer clock source as sched_clock
 227
 228 config ARMV7M_SYSTICK
 229         bool
 230         select CLKSRC_OF if OF
 231         select CLKSRC_MMIO
 232         help
 233           This options enables support for the ARMv7M system timer unit
 234
 235 config ATMEL_PIT
 236         select CLKSRC_OF if OF
 237         def_bool SOC_AT91SAM9 || SOC_SAMA5
 238
 239 config ATMEL_ST
 240         bool
 241         select CLKSRC_OF
 242         select MFD_SYSCON
 243
 244 config CLKSRC_METAG_GENERIC
 245         def_bool y if METAG
 246         help
 247           This option enables support for the Meta per-thread timers.
 248
 249 config CLKSRC_EXYNOS_MCT
 250         bool "Exynos multi core timer driver" if COMPILE_TEST
 251         depends on ARM
 252         help
 253           Support for Multi Core Timer controller on Exynos SoCs.
 254
 255 config CLKSRC_SAMSUNG_PWM
 256         bool "PWM timer drvier for Samsung S3C, S5P" if COMPILE_TEST
 257         depends on GENERIC_CLOCKEVENTS
 258         depends on HAS_IOMEM
 259         help
 260           This is a new clocksource driver for the PWM timer found in
 261           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 262           for all devicetree enabled platforms. This driver will be
 263           needed only on systems that do not have the Exynos MCT available.
 264
 265 config FSL_FTM_TIMER
 266         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 267         depends on GENERIC_CLOCKEVENTS
 268         depends on HAS_IOMEM
 269         select CLKSRC_MMIO
 270         help
 271           Support for Freescale FlexTimer Module (FTM) timer.
 272
 273 config VF_PIT_TIMER
 274         bool
 275         select CLKSRC_MMIO
 276         help
 277           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 278
 279 config SYS_SUPPORTS_SH_CMT
 280         bool
 281
 282 config MTK_TIMER
 283         bool "Mediatek timer driver" if COMPILE_TEST
 284         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 285         select CLKSRC_OF
 286         select CLKSRC_MMIO
 287         help
 288           Support for Mediatek timer driver.
 289
 290 config SYS_SUPPORTS_SH_MTU2
 291         bool
 292
 293 config SYS_SUPPORTS_SH_TMU
 294         bool
 295
 296 config SYS_SUPPORTS_EM_STI
 297         bool
 298
 299 config SH_TIMER_CMT
 300         bool "Renesas CMT timer driver" if COMPILE_TEST
 301         depends on GENERIC_CLOCKEVENTS
 302         depends on HAS_IOMEM
 303         default SYS_SUPPORTS_SH_CMT
 304         help
 305           This enables build of a clocksource and clockevent driver for
 306           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 307           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 308
 309 config SH_TIMER_MTU2
 310         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 311         depends on GENERIC_CLOCKEVENTS
 312         depends on HAS_IOMEM
 313         default SYS_SUPPORTS_SH_MTU2
 314         help
 315           This enables build of a clockevent driver for the Multi-Function
 316           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 317           This hardware comes with 16 bit-timer registers.
 318
 319 config SH_TIMER_TMU
 320         bool "Renesas TMU timer driver" if COMPILE_TEST
 321         depends on GENERIC_CLOCKEVENTS
 322         depends on HAS_IOMEM
 323         default SYS_SUPPORTS_SH_TMU
 324         help
 325           This enables build of a clocksource and clockevent driver for
 326           the 32-bit Timer Unit (TMU) hardware available on a wide range
 327           SoCs from Renesas.
 328
 329 config EM_TIMER_STI
 330         bool "Renesas STI timer driver" if COMPILE_TEST
 331         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 332         default SYS_SUPPORTS_EM_STI
 333         help
 334           This enables build of a clocksource and clockevent driver for
 335           the 48-bit System Timer (STI) hardware available on a SoCs
 336           such as EMEV2 from former NEC Electronics.
 337
 338 config CLKSRC_QCOM
 339         bool "Qualcomm MSM timer" if COMPILE_TEST
 340         depends on ARM
 341         select CLKSRC_OF
 342         help
 343           This enables the clocksource and the per CPU clockevent driver for the
 344           Qualcomm SoCs.
 345
 346 config CLKSRC_VERSATILE
 347         bool "ARM Versatile (Express) reference platforms clock source"
 348         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 349         select CLKSRC_OF
 350         default y if MFD_VEXPRESS_SYSREG
 351         help
 352           This option enables clock source based on free running
 353           counter available in the "System Registers" block of
 354           ARM Versatile, RealView and Versatile Express reference
 355           platforms.
 356
 357 config CLKSRC_MIPS_GIC
 358         bool
 359         depends on MIPS_GIC
 360         select CLKSRC_OF
 361
 362 config CLKSRC_TANGO_XTAL
 363         bool "Clocksource for Tango SoC" if COMPILE_TEST
 364         depends on ARM
 365         select CLKSRC_OF
 366         select CLKSRC_MMIO
 367         help
 368           This enables the clocksource for Tango SoC
 369
 370 config CLKSRC_PXA
 371         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 372         depends on GENERIC_CLOCKEVENTS
 373         depends on HAS_IOMEM
 374         select CLKSRC_MMIO
 375         help
 376           This enables OST0 support available on PXA and SA-11x0
 377           platforms.
 378
 379 config H8300_TMR8
 380         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 381         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 382         help
 383           This enables the 8 bits timer for the H8300 platform.
 384
 385 config H8300_TMR16
 386         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 387         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 388         help
 389           This enables the 16 bits timer for the H8300 platform with the
 390           H83069 cpu.
 391
 392 config H8300_TPU
 393         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 394         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 395         help
 396           This enables the clocksource for the H8300 platform with the
 397           H8S2678 cpu.
 398
 399 config CLKSRC_IMX_GPT
 400         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 401         depends on ARM && CLKDEV_LOOKUP
 402         select CLKSRC_MMIO
 403
 404 config CLKSRC_ST_LPC
 405         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 406         select CLKSRC_OF if OF
 407         depends on HAS_IOMEM
 408         select CLKSRC_MMIO
 409         help
 410           Enable this option to use the Low Power controller timer
 411           as clocksource.
 412
 413 endmenu