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 BCM2835_TIMER
  31         bool "BCM2835 timer driver" if COMPILE_TEST
  32         depends on GENERIC_CLOCKEVENTS
  33         select CLKSRC_MMIO
  34         help
  35           Enables the support for the BCM2835 timer driver.
  36
  37 config BCM_KONA_TIMER
  38         bool "BCM mobile timer driver" if COMPILE_TEST
  39         depends on GENERIC_CLOCKEVENTS
  40         select CLKSRC_MMIO
  41         help
  42           Enables the support for the BCM Kona mobile timer driver.
  43
  44 config DIGICOLOR_TIMER
  45         bool "Digicolor timer driver" if COMPILE_TEST
  46         depends on GENERIC_CLOCKEVENTS
  47         select CLKSRC_MMIO
  48         depends on HAS_IOMEM
  49         help
  50           Enables the support for the digicolor timer driver.
  51
  52 config DW_APB_TIMER
  53         bool "DW APB timer driver" if COMPILE_TEST
  54         depends on GENERIC_CLOCKEVENTS
  55         help
  56           Enables the support for the dw_apb timer.
  57
  58 config DW_APB_TIMER_OF
  59         bool
  60         select DW_APB_TIMER
  61         select CLKSRC_OF
  62
  63 config ROCKCHIP_TIMER
  64         bool "Rockchip timer driver" if COMPILE_TEST
  65         depends on ARM || ARM64
  66         select CLKSRC_OF
  67         help
  68           Enables the support for the rockchip timer driver.
  69
  70 config ARMADA_370_XP_TIMER
  71         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  72         depends on ARM
  73         select CLKSRC_OF
  74         select CLKSRC_MMIO
  75         help
  76           Enables the support for the Armada 370 and XP timer driver.
  77
  78 config MESON6_TIMER
  79         bool "Meson6 timer driver" if COMPILE_TEST
  80         depends on GENERIC_CLOCKEVENTS
  81         select CLKSRC_MMIO
  82         help
  83           Enables the support for the Meson6 timer driver.
  84
  85 config ORION_TIMER
  86         bool "Orion timer driver" if COMPILE_TEST
  87         depends on ARM
  88         select CLKSRC_OF
  89         select CLKSRC_MMIO
  90         help
  91           Enables the support for the Orion timer driver
  92
  93 config SUN4I_TIMER
  94         bool "Sun4i timer driver" if COMPILE_TEST
  95         depends on GENERIC_CLOCKEVENTS
  96         depends on HAS_IOMEM
  97         select CLKSRC_MMIO
  98         help
  99           Enables support for the Sun4i timer.
 100
 101 config SUN5I_HSTIMER
 102         bool "Sun5i timer driver" if COMPILE_TEST
 103         select CLKSRC_MMIO
 104         depends on COMMON_CLK
 105         help
 106           Enables support the Sun5i timer.
 107
 108 config TEGRA_TIMER
 109         bool "Tegra timer driver" if COMPILE_TEST
 110         select CLKSRC_MMIO
 111         depends on ARM
 112         help
 113           Enables support for the Tegra driver.
 114
 115 config VT8500_TIMER
 116         bool "VT8500 timer driver" if COMPILE_TEST
 117         depends on GENERIC_CLOCKEVENTS
 118         depends on HAS_IOMEM
 119         help
 120           Enables support for the VT8500 driver.
 121
 122 config CADENCE_TTC_TIMER
 123         bool "Cadence TTC timer driver" if COMPILE_TEST
 124         depends on COMMON_CLK
 125         help
 126           Enables support for the cadence ttc driver.
 127
 128 config ASM9260_TIMER
 129         bool "ASM9260 timer driver" if COMPILE_TEST
 130         depends on GENERIC_CLOCKEVENTS
 131         select CLKSRC_MMIO
 132         select CLKSRC_OF
 133         help
 134           Enables support for the ASM9260 timer.
 135
 136 config CLKSRC_NOMADIK_MTU
 137         bool "Nomakdik clocksource driver" if COMPILE_TEST
 138         depends on ARM
 139         select CLKSRC_MMIO
 140         help
 141           Support for Multi Timer Unit. MTU provides access
 142           to multiple interrupt generating programmable
 143           32-bit free running decrementing counters.
 144
 145 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 146         bool
 147         depends on CLKSRC_NOMADIK_MTU
 148         help
 149           Use the Multi Timer Unit as the sched_clock.
 150
 151 config CLKSRC_DBX500_PRCMU
 152         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 153         depends on GENERIC_CLOCKEVENTS
 154         depends on HAS_IOMEM
 155         help
 156           Use the always on PRCMU Timer as clocksource
 157
 158 config CLPS711X_TIMER
 159         bool "Cirrus logic timer driver" if COMPILE_TEST
 160         depends on GENERIC_CLOCKEVENTS
 161         select CLKSRC_MMIO
 162         help
 163           Enables support for the Cirrus Logic PS711 timer.
 164
 165 config ATLAS7_TIMER
 166         bool "Atlas7 timer driver" if COMPILE_TEST
 167         depends on GENERIC_CLOCKEVENTS
 168         select CLKSRC_MMIO
 169         help
 170           Enables support for the Atlas7 timer.
 171
 172 config MOXART_TIMER
 173         bool "Moxart timer driver" if COMPILE_TEST
 174         depends on GENERIC_CLOCKEVENTS
 175         select CLKSRC_MMIO
 176         help
 177           Enables support for the Moxart timer.
 178
 179 config MXS_TIMER
 180         bool "Mxs timer driver" if COMPILE_TEST
 181         depends on GENERIC_CLOCKEVENTS
 182         select CLKSRC_MMIO
 183         select STMP_DEVICE
 184         help
 185           Enables support for the Mxs timer.
 186
 187 config PRIMA2_TIMER
 188         bool "Prima2 timer driver" if COMPILE_TEST
 189         depends on GENERIC_CLOCKEVENTS
 190         select CLKSRC_MMIO
 191         help
 192           Enables support for the Prima2 timer.
 193
 194 config U300_TIMER
 195         bool "U300 timer driver" if COMPILE_TEST
 196         depends on GENERIC_CLOCKEVENTS
 197         depends on ARM
 198         select CLKSRC_MMIO
 199         help
 200           Enables support for the U300 timer.
 201
 202 config NSPIRE_TIMER
 203         bool "NSpire timer driver" if COMPILE_TEST
 204         depends on GENERIC_CLOCKEVENTS
 205         select CLKSRC_MMIO
 206         help
 207           Enables support for the Nspire timer.
 208
 209 config KEYSTONE_TIMER
 210         bool "Keystone timer driver" if COMPILE_TEST
 211         depends on GENERIC_CLOCKEVENTS
 212         depends on ARM || ARM64
 213         select CLKSRC_MMIO
 214         help
 215           Enables support for the Keystone timer.
 216
 217 config INTEGRATOR_AP_TIMER
 218         bool "Integrator-ap timer driver" if COMPILE_TEST
 219         depends on GENERIC_CLOCKEVENTS
 220         select CLKSRC_MMIO
 221         help
 222           Enables support for the Integrator-ap timer.
 223
 224 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 225         bool "Clocksource PRCMU Timer sched_clock"
 226         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 227         default y
 228         help
 229           Use the always on PRCMU Timer as sched_clock
 230
 231 config CLKSRC_EFM32
 232         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 233         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 234         select CLKSRC_MMIO
 235         default ARCH_EFM32
 236         help
 237           Support to use the timers of EFM32 SoCs as clock source and clock
 238           event device.
 239
 240 config CLKSRC_LPC32XX
 241         bool "Clocksource for LPC32XX" if COMPILE_TEST
 242         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 243         depends on ARM
 244         select CLKSRC_MMIO
 245         select CLKSRC_OF
 246         help
 247           Support for the LPC32XX clocksource.
 248
 249 config CLKSRC_PISTACHIO
 250         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 251         depends on HAS_IOMEM
 252         select CLKSRC_OF
 253         help
 254           Enables the clocksource for the Pistachio SoC.
 255
 256 config CLKSRC_TI_32K
 257         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 258         depends on GENERIC_SCHED_CLOCK
 259         select CLKSRC_OF if OF
 260         help
 261           This option enables support for Texas Instruments 32.768 Hz clocksource
 262           available on many OMAP-like platforms.
 263
 264 config CLKSRC_NPS
 265         bool "NPS400 clocksource driver" if COMPILE_TEST
 266         depends on !PHYS_ADDR_T_64BIT
 267         select CLKSRC_MMIO
 268         select CLKSRC_OF if OF
 269         help
 270           NPS400 clocksource support.
 271           Got 64 bit counter with update rate up to 1000MHz.
 272           This counter is accessed via couple of 32 bit memory mapped registers.
 273
 274 config CLKSRC_STM32
 275         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 276         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 277         select CLKSRC_MMIO
 278
 279 config CLKSRC_MPS2
 280         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
 281         depends on GENERIC_SCHED_CLOCK
 282         select CLKSRC_MMIO
 283         select CLKSRC_OF
 284
 285 config ARM_ARCH_TIMER
 286         bool
 287         select CLKSRC_OF if OF
 288         select CLKSRC_ACPI if ACPI
 289
 290 config ARM_ARCH_TIMER_EVTSTREAM
 291         bool "Enable ARM architected timer event stream generation by default"
 292         default y if ARM_ARCH_TIMER
 293         depends on ARM_ARCH_TIMER
 294         help
 295           This option enables support by default for event stream generation
 296           based on the ARM architected timer. It is used for waking up CPUs
 297           executing the wfe instruction at a frequency represented as a
 298           power-of-2 divisor of the clock rate. The behaviour can also be
 299           overridden on the command line using the
 300           clocksource.arm_arch_timer.evtstream parameter.
 301           The main use of the event stream is wfe-based timeouts of userspace
 302           locking implementations. It might also be useful for imposing timeout
 303           on wfe to safeguard against any programming errors in case an expected
 304           event is not generated.
 305           This must be disabled for hardware validation purposes to detect any
 306           hardware anomalies of missing events.
 307
 308 config ARM_GLOBAL_TIMER
 309         bool "Support for the ARM global timer" if COMPILE_TEST
 310         select CLKSRC_OF if OF
 311         depends on ARM
 312         help
 313           This options enables support for the ARM global timer unit
 314
 315 config ARM_TIMER_SP804
 316         bool "Support for Dual Timer SP804 module"
 317         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 318         select CLKSRC_MMIO
 319         select CLKSRC_OF if OF
 320
 321 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 322         bool
 323         depends on ARM_GLOBAL_TIMER
 324         default y
 325         help
 326          Use ARM global timer clock source as sched_clock
 327
 328 config ARMV7M_SYSTICK
 329         bool "Support for the ARMv7M system time" if COMPILE_TEST
 330         select CLKSRC_OF if OF
 331         select CLKSRC_MMIO
 332         help
 333           This options enables support for the ARMv7M system timer unit
 334
 335 config ATMEL_PIT
 336         select CLKSRC_OF if OF
 337         def_bool SOC_AT91SAM9 || SOC_SAMA5
 338
 339 config ATMEL_ST
 340         bool "Atmel ST timer support" if COMPILE_TEST
 341         depends on GENERIC_CLOCKEVENTS
 342         select CLKSRC_OF
 343         select MFD_SYSCON
 344         help
 345           Support for the Atmel ST timer.
 346
 347 config CLKSRC_METAG_GENERIC
 348         def_bool y if METAG
 349         help
 350           This option enables support for the Meta per-thread timers.
 351
 352 config CLKSRC_EXYNOS_MCT
 353         bool "Exynos multi core timer driver" if COMPILE_TEST
 354         depends on ARM
 355         help
 356           Support for Multi Core Timer controller on Exynos SoCs.
 357
 358 config CLKSRC_SAMSUNG_PWM
 359         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
 360         depends on GENERIC_CLOCKEVENTS
 361         depends on HAS_IOMEM
 362         help
 363           This is a new clocksource driver for the PWM timer found in
 364           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 365           for all devicetree enabled platforms. This driver will be
 366           needed only on systems that do not have the Exynos MCT available.
 367
 368 config FSL_FTM_TIMER
 369         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 370         depends on GENERIC_CLOCKEVENTS
 371         depends on HAS_IOMEM
 372         select CLKSRC_MMIO
 373         help
 374           Support for Freescale FlexTimer Module (FTM) timer.
 375
 376 config VF_PIT_TIMER
 377         bool
 378         select CLKSRC_MMIO
 379         help
 380           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 381
 382 config OXNAS_RPS_TIMER
 383         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
 384         depends on GENERIC_CLOCKEVENTS
 385         select CLKSRC_OF
 386         select CLKSRC_MMIO
 387         help
 388           This enables support for the Oxford Semiconductor OXNAS RPS timers.
 389
 390 config SYS_SUPPORTS_SH_CMT
 391         bool
 392
 393 config MTK_TIMER
 394         bool "Mediatek timer driver" if COMPILE_TEST
 395         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 396         select CLKSRC_OF
 397         select CLKSRC_MMIO
 398         help
 399           Support for Mediatek timer driver.
 400
 401 config SYS_SUPPORTS_SH_MTU2
 402         bool
 403
 404 config SYS_SUPPORTS_SH_TMU
 405         bool
 406
 407 config SYS_SUPPORTS_EM_STI
 408         bool
 409
 410 config SH_TIMER_CMT
 411         bool "Renesas CMT timer driver" if COMPILE_TEST
 412         depends on GENERIC_CLOCKEVENTS
 413         depends on HAS_IOMEM
 414         default SYS_SUPPORTS_SH_CMT
 415         help
 416           This enables build of a clocksource and clockevent driver for
 417           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 418           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 419
 420 config SH_TIMER_MTU2
 421         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 422         depends on GENERIC_CLOCKEVENTS
 423         depends on HAS_IOMEM
 424         default SYS_SUPPORTS_SH_MTU2
 425         help
 426           This enables build of a clockevent driver for the Multi-Function
 427           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 428           This hardware comes with 16 bit-timer registers.
 429
 430 config SH_TIMER_TMU
 431         bool "Renesas TMU timer driver" if COMPILE_TEST
 432         depends on GENERIC_CLOCKEVENTS
 433         depends on HAS_IOMEM
 434         default SYS_SUPPORTS_SH_TMU
 435         help
 436           This enables build of a clocksource and clockevent driver for
 437           the 32-bit Timer Unit (TMU) hardware available on a wide range
 438           SoCs from Renesas.
 439
 440 config EM_TIMER_STI
 441         bool "Renesas STI timer driver" if COMPILE_TEST
 442         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 443         default SYS_SUPPORTS_EM_STI
 444         help
 445           This enables build of a clocksource and clockevent driver for
 446           the 48-bit System Timer (STI) hardware available on a SoCs
 447           such as EMEV2 from former NEC Electronics.
 448
 449 config CLKSRC_QCOM
 450         bool "Qualcomm MSM timer" if COMPILE_TEST
 451         depends on ARM
 452         select CLKSRC_OF
 453         help
 454           This enables the clocksource and the per CPU clockevent driver for the
 455           Qualcomm SoCs.
 456
 457 config CLKSRC_VERSATILE
 458         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
 459         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 460         select CLKSRC_OF
 461         default y if MFD_VEXPRESS_SYSREG
 462         help
 463           This option enables clock source based on free running
 464           counter available in the "System Registers" block of
 465           ARM Versatile, RealView and Versatile Express reference
 466           platforms.
 467
 468 config CLKSRC_MIPS_GIC
 469         bool
 470         depends on MIPS_GIC
 471         select CLKSRC_OF
 472
 473 config CLKSRC_TANGO_XTAL
 474         bool "Clocksource for Tango SoC" if COMPILE_TEST
 475         depends on ARM
 476         select CLKSRC_OF
 477         select CLKSRC_MMIO
 478         help
 479           This enables the clocksource for Tango SoC
 480
 481 config CLKSRC_PXA
 482         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 483         depends on GENERIC_CLOCKEVENTS
 484         depends on HAS_IOMEM
 485         select CLKSRC_MMIO
 486         help
 487           This enables OST0 support available on PXA and SA-11x0
 488           platforms.
 489
 490 config H8300_TMR8
 491         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 492         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 493         help
 494           This enables the 8 bits timer for the H8300 platform.
 495
 496 config H8300_TMR16
 497         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 498         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 499         help
 500           This enables the 16 bits timer for the H8300 platform with the
 501           H83069 cpu.
 502
 503 config H8300_TPU
 504         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 505         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 506         help
 507           This enables the clocksource for the H8300 platform with the
 508           H8S2678 cpu.
 509
 510 config CLKSRC_IMX_GPT
 511         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 512         depends on ARM && CLKDEV_LOOKUP
 513         select CLKSRC_MMIO
 514
 515 config CLKSRC_ST_LPC
 516         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 517         select CLKSRC_OF if OF
 518         depends on HAS_IOMEM
 519         select CLKSRC_MMIO
 520         help
 521           Enable this option to use the Low Power controller timer
 522           as clocksource.
 523
 524 endmenu