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 CLKEVT_OF
   9         bool
  10         select CLKEVT_PROBE
  11
  12 config CLKSRC_ACPI
  13         bool
  14         select CLKSRC_PROBE
  15
  16 config CLKSRC_PROBE
  17         bool
  18
  19 config CLKEVT_PROBE
  20         bool
  21
  22 config CLKSRC_I8253
  23         bool
  24
  25 config CLKEVT_I8253
  26         bool
  27
  28 config I8253_LOCK
  29         bool
  30
  31 config CLKBLD_I8253
  32         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  33
  34 config CLKSRC_MMIO
  35         bool
  36
  37 config BCM2835_TIMER
  38         bool "BCM2835 timer driver" if COMPILE_TEST
  39         depends on GENERIC_CLOCKEVENTS
  40         select CLKSRC_MMIO
  41         help
  42           Enables the support for the BCM2835 timer driver.
  43
  44 config BCM_KONA_TIMER
  45         bool "BCM mobile timer driver" if COMPILE_TEST
  46         depends on GENERIC_CLOCKEVENTS
  47         select CLKSRC_MMIO
  48         help
  49           Enables the support for the BCM Kona mobile timer driver.
  50
  51 config DIGICOLOR_TIMER
  52         bool "Digicolor timer driver" if COMPILE_TEST
  53         depends on GENERIC_CLOCKEVENTS
  54         select CLKSRC_MMIO
  55         depends on HAS_IOMEM
  56         help
  57           Enables the support for the digicolor timer driver.
  58
  59 config DW_APB_TIMER
  60         bool "DW APB timer driver" if COMPILE_TEST
  61         depends on GENERIC_CLOCKEVENTS
  62         help
  63           Enables the support for the dw_apb timer.
  64
  65 config DW_APB_TIMER_OF
  66         bool
  67         select DW_APB_TIMER
  68         select CLKSRC_OF
  69
  70 config GEMINI_TIMER
  71         bool "Cortina Gemini timer driver" if COMPILE_TEST
  72         depends on GENERIC_CLOCKEVENTS
  73         depends on HAS_IOMEM
  74         select CLKSRC_MMIO
  75         select CLKSRC_OF
  76         select MFD_SYSCON
  77         help
  78           Enables support for the Gemini timer
  79
  80 config ROCKCHIP_TIMER
  81         bool "Rockchip timer driver" if COMPILE_TEST
  82         depends on ARM || ARM64
  83         select CLKSRC_OF
  84         help
  85           Enables the support for the rockchip timer driver.
  86
  87 config ARMADA_370_XP_TIMER
  88         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  89         depends on ARM
  90         select CLKSRC_OF
  91         select CLKSRC_MMIO
  92         help
  93           Enables the support for the Armada 370 and XP timer driver.
  94
  95 config MESON6_TIMER
  96         bool "Meson6 timer driver" if COMPILE_TEST
  97         depends on GENERIC_CLOCKEVENTS
  98         select CLKSRC_MMIO
  99         help
 100           Enables the support for the Meson6 timer driver.
 101
 102 config ORION_TIMER
 103         bool "Orion timer driver" if COMPILE_TEST
 104         depends on ARM
 105         select CLKSRC_OF
 106         select CLKSRC_MMIO
 107         help
 108           Enables the support for the Orion timer driver
 109
 110 config SUN4I_TIMER
 111         bool "Sun4i timer driver" if COMPILE_TEST
 112         depends on GENERIC_CLOCKEVENTS
 113         depends on HAS_IOMEM
 114         select CLKSRC_MMIO
 115         help
 116           Enables support for the Sun4i timer.
 117
 118 config SUN5I_HSTIMER
 119         bool "Sun5i timer driver" if COMPILE_TEST
 120         select CLKSRC_MMIO
 121         depends on COMMON_CLK
 122         help
 123           Enables support the Sun5i timer.
 124
 125 config TEGRA_TIMER
 126         bool "Tegra timer driver" if COMPILE_TEST
 127         select CLKSRC_MMIO
 128         depends on ARM
 129         help
 130           Enables support for the Tegra driver.
 131
 132 config VT8500_TIMER
 133         bool "VT8500 timer driver" if COMPILE_TEST
 134         depends on GENERIC_CLOCKEVENTS
 135         depends on HAS_IOMEM
 136         help
 137           Enables support for the VT8500 driver.
 138
 139 config CADENCE_TTC_TIMER
 140         bool "Cadence TTC timer driver" if COMPILE_TEST
 141         depends on COMMON_CLK
 142         help
 143           Enables support for the cadence ttc driver.
 144
 145 config ASM9260_TIMER
 146         bool "ASM9260 timer driver" if COMPILE_TEST
 147         depends on GENERIC_CLOCKEVENTS
 148         select CLKSRC_MMIO
 149         select CLKSRC_OF
 150         help
 151           Enables support for the ASM9260 timer.
 152
 153 config CLKSRC_NOMADIK_MTU
 154         bool "Nomakdik clocksource driver" if COMPILE_TEST
 155         depends on ARM
 156         select CLKSRC_MMIO
 157         help
 158           Support for Multi Timer Unit. MTU provides access
 159           to multiple interrupt generating programmable
 160           32-bit free running decrementing counters.
 161
 162 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 163         bool
 164         depends on CLKSRC_NOMADIK_MTU
 165         help
 166           Use the Multi Timer Unit as the sched_clock.
 167
 168 config CLKSRC_DBX500_PRCMU
 169         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 170         depends on GENERIC_CLOCKEVENTS
 171         depends on HAS_IOMEM
 172         help
 173           Use the always on PRCMU Timer as clocksource
 174
 175 config CLPS711X_TIMER
 176         bool "Cirrus logic timer driver" if COMPILE_TEST
 177         depends on GENERIC_CLOCKEVENTS
 178         select CLKSRC_MMIO
 179         help
 180           Enables support for the Cirrus Logic PS711 timer.
 181
 182 config ATLAS7_TIMER
 183         bool "Atlas7 timer driver" if COMPILE_TEST
 184         depends on GENERIC_CLOCKEVENTS
 185         select CLKSRC_MMIO
 186         help
 187           Enables support for the Atlas7 timer.
 188
 189 config MOXART_TIMER
 190         bool "Moxart timer driver" if COMPILE_TEST
 191         depends on GENERIC_CLOCKEVENTS
 192         select CLKSRC_MMIO
 193         help
 194           Enables support for the Moxart timer.
 195
 196 config MXS_TIMER
 197         bool "Mxs timer driver" if COMPILE_TEST
 198         depends on GENERIC_CLOCKEVENTS
 199         select CLKSRC_MMIO
 200         select STMP_DEVICE
 201         help
 202           Enables support for the Mxs timer.
 203
 204 config PRIMA2_TIMER
 205         bool "Prima2 timer driver" if COMPILE_TEST
 206         depends on GENERIC_CLOCKEVENTS
 207         select CLKSRC_MMIO
 208         help
 209           Enables support for the Prima2 timer.
 210
 211 config U300_TIMER
 212         bool "U300 timer driver" if COMPILE_TEST
 213         depends on GENERIC_CLOCKEVENTS
 214         depends on ARM
 215         select CLKSRC_MMIO
 216         help
 217           Enables support for the U300 timer.
 218
 219 config NSPIRE_TIMER
 220         bool "NSpire timer driver" if COMPILE_TEST
 221         depends on GENERIC_CLOCKEVENTS
 222         select CLKSRC_MMIO
 223         help
 224           Enables support for the Nspire timer.
 225
 226 config KEYSTONE_TIMER
 227         bool "Keystone timer driver" if COMPILE_TEST
 228         depends on GENERIC_CLOCKEVENTS
 229         depends on ARM || ARM64
 230         select CLKSRC_MMIO
 231         help
 232           Enables support for the Keystone timer.
 233
 234 config INTEGRATOR_AP_TIMER
 235         bool "Integrator-ap timer driver" if COMPILE_TEST
 236         depends on GENERIC_CLOCKEVENTS
 237         select CLKSRC_MMIO
 238         help
 239           Enables support for the Integrator-ap timer.
 240
 241 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 242         bool "Clocksource PRCMU Timer sched_clock"
 243         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 244         default y
 245         help
 246           Use the always on PRCMU Timer as sched_clock
 247
 248 config CLKSRC_EFM32
 249         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 250         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 251         select CLKSRC_MMIO
 252         default ARCH_EFM32
 253         help
 254           Support to use the timers of EFM32 SoCs as clock source and clock
 255           event device.
 256
 257 config CLKSRC_LPC32XX
 258         bool "Clocksource for LPC32XX" if COMPILE_TEST
 259         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 260         depends on ARM
 261         select CLKSRC_MMIO
 262         select CLKSRC_OF
 263         help
 264           Support for the LPC32XX clocksource.
 265
 266 config CLKSRC_PISTACHIO
 267         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 268         depends on HAS_IOMEM
 269         select CLKSRC_OF
 270         help
 271           Enables the clocksource for the Pistachio SoC.
 272
 273 config CLKSRC_TI_32K
 274         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 275         depends on GENERIC_SCHED_CLOCK
 276         select CLKSRC_OF if OF
 277         help
 278           This option enables support for Texas Instruments 32.768 Hz clocksource
 279           available on many OMAP-like platforms.
 280
 281 config CLKSRC_NPS
 282         bool "NPS400 clocksource driver" if COMPILE_TEST
 283         depends on !PHYS_ADDR_T_64BIT
 284         select CLKSRC_MMIO
 285         select CLKSRC_OF if OF
 286         help
 287           NPS400 clocksource support.
 288           Got 64 bit counter with update rate up to 1000MHz.
 289           This counter is accessed via couple of 32 bit memory mapped registers.
 290
 291 config CLKSRC_STM32
 292         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 293         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 294         select CLKSRC_MMIO
 295
 296 config CLKSRC_MPS2
 297         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
 298         depends on GENERIC_SCHED_CLOCK
 299         select CLKSRC_MMIO
 300         select CLKSRC_OF
 301
 302 config ARC_TIMERS
 303         bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
 304         depends on GENERIC_CLOCKEVENTS
 305         select CLKSRC_OF
 306         help
 307           These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
 308           (ARC700 as well as ARC HS38).
 309           TIMER0 serves as clockevent while TIMER1 provides clocksource
 310
 311 config ARC_TIMERS_64BIT
 312         bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
 313         depends on GENERIC_CLOCKEVENTS
 314         depends on ARC_TIMERS
 315         select CLKSRC_OF
 316         help
 317           This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
 318           RTC is implemented inside the core, while GFRC sits outside the core in
 319           ARConnect IP block. Driver automatically picks one of them for clocksource
 320           as appropriate.
 321
 322 config ARM_ARCH_TIMER
 323         bool
 324         select CLKSRC_OF if OF
 325         select CLKSRC_ACPI if ACPI
 326
 327 config ARM_ARCH_TIMER_EVTSTREAM
 328         bool "Enable ARM architected timer event stream generation by default"
 329         default y if ARM_ARCH_TIMER
 330         depends on ARM_ARCH_TIMER
 331         help
 332           This option enables support by default for event stream generation
 333           based on the ARM architected timer. It is used for waking up CPUs
 334           executing the wfe instruction at a frequency represented as a
 335           power-of-2 divisor of the clock rate. The behaviour can also be
 336           overridden on the command line using the
 337           clocksource.arm_arch_timer.evtstream parameter.
 338           The main use of the event stream is wfe-based timeouts of userspace
 339           locking implementations. It might also be useful for imposing timeout
 340           on wfe to safeguard against any programming errors in case an expected
 341           event is not generated.
 342           This must be disabled for hardware validation purposes to detect any
 343           hardware anomalies of missing events.
 344
 345 config ARM_ARCH_TIMER_OOL_WORKAROUND
 346         bool
 347
 348 config FSL_ERRATUM_A008585
 349         bool "Workaround for Freescale/NXP Erratum A-008585"
 350         default y
 351         depends on ARM_ARCH_TIMER && ARM64
 352         select ARM_ARCH_TIMER_OOL_WORKAROUND
 353         help
 354           This option enables a workaround for Freescale/NXP Erratum
 355           A-008585 ("ARM generic timer may contain an erroneous
 356           value").  The workaround will only be active if the
 357           fsl,erratum-a008585 property is found in the timer node.
 358
 359 config HISILICON_ERRATUM_161010101
 360         bool "Workaround for Hisilicon Erratum 161010101"
 361         default y
 362         select ARM_ARCH_TIMER_OOL_WORKAROUND
 363         depends on ARM_ARCH_TIMER && ARM64
 364         help
 365           This option enables a workaround for Hisilicon Erratum
 366           161010101. The workaround will be active if the hisilicon,erratum-161010101
 367           property is found in the timer node.
 368
 369 config ARM_GLOBAL_TIMER
 370         bool "Support for the ARM global timer" if COMPILE_TEST
 371         select CLKSRC_OF if OF
 372         depends on ARM
 373         help
 374           This options enables support for the ARM global timer unit
 375
 376 config ARM_TIMER_SP804
 377         bool "Support for Dual Timer SP804 module"
 378         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 379         select CLKSRC_MMIO
 380         select CLKSRC_OF if OF
 381
 382 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 383         bool
 384         depends on ARM_GLOBAL_TIMER
 385         default y
 386         help
 387          Use ARM global timer clock source as sched_clock
 388
 389 config ARMV7M_SYSTICK
 390         bool "Support for the ARMv7M system time" if COMPILE_TEST
 391         select CLKSRC_OF if OF
 392         select CLKSRC_MMIO
 393         help
 394           This options enables support for the ARMv7M system timer unit
 395
 396 config ATMEL_PIT
 397         select CLKSRC_OF if OF
 398         def_bool SOC_AT91SAM9 || SOC_SAMA5
 399
 400 config ATMEL_ST
 401         bool "Atmel ST timer support" if COMPILE_TEST
 402         depends on GENERIC_CLOCKEVENTS
 403         select CLKSRC_OF
 404         select MFD_SYSCON
 405         help
 406           Support for the Atmel ST timer.
 407
 408 config CLKSRC_METAG_GENERIC
 409         def_bool y if METAG
 410         help
 411           This option enables support for the Meta per-thread timers.
 412
 413 config CLKSRC_EXYNOS_MCT
 414         bool "Exynos multi core timer driver" if COMPILE_TEST
 415         depends on ARM || ARM64
 416         help
 417           Support for Multi Core Timer controller on Exynos SoCs.
 418
 419 config CLKSRC_SAMSUNG_PWM
 420         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
 421         depends on GENERIC_CLOCKEVENTS
 422         depends on HAS_IOMEM
 423         help
 424           This is a new clocksource driver for the PWM timer found in
 425           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 426           for all devicetree enabled platforms. This driver will be
 427           needed only on systems that do not have the Exynos MCT available.
 428
 429 config FSL_FTM_TIMER
 430         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 431         depends on GENERIC_CLOCKEVENTS
 432         depends on HAS_IOMEM
 433         select CLKSRC_MMIO
 434         help
 435           Support for Freescale FlexTimer Module (FTM) timer.
 436
 437 config VF_PIT_TIMER
 438         bool
 439         select CLKSRC_MMIO
 440         help
 441           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 442
 443 config OXNAS_RPS_TIMER
 444         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
 445         depends on GENERIC_CLOCKEVENTS
 446         select CLKSRC_OF
 447         select CLKSRC_MMIO
 448         help
 449           This enables support for the Oxford Semiconductor OXNAS RPS timers.
 450
 451 config SYS_SUPPORTS_SH_CMT
 452         bool
 453
 454 config MTK_TIMER
 455         bool "Mediatek timer driver" if COMPILE_TEST
 456         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 457         select CLKSRC_OF
 458         select CLKSRC_MMIO
 459         help
 460           Support for Mediatek timer driver.
 461
 462 config SYS_SUPPORTS_SH_MTU2
 463         bool
 464
 465 config SYS_SUPPORTS_SH_TMU
 466         bool
 467
 468 config SYS_SUPPORTS_EM_STI
 469         bool
 470
 471 config CLKSRC_JCORE_PIT
 472         bool "J-Core PIT timer driver" if COMPILE_TEST
 473         depends on OF
 474         depends on GENERIC_CLOCKEVENTS
 475         depends on HAS_IOMEM
 476         select CLKSRC_MMIO
 477         help
 478           This enables build of clocksource and clockevent driver for
 479           the integrated PIT in the J-Core synthesizable, open source SoC.
 480
 481 config SH_TIMER_CMT
 482         bool "Renesas CMT timer driver" if COMPILE_TEST
 483         depends on GENERIC_CLOCKEVENTS
 484         depends on HAS_IOMEM
 485         default SYS_SUPPORTS_SH_CMT
 486         help
 487           This enables build of a clocksource and clockevent driver for
 488           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 489           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 490
 491 config SH_TIMER_MTU2
 492         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 493         depends on GENERIC_CLOCKEVENTS
 494         depends on HAS_IOMEM
 495         default SYS_SUPPORTS_SH_MTU2
 496         help
 497           This enables build of a clockevent driver for the Multi-Function
 498           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 499           This hardware comes with 16 bit-timer registers.
 500
 501 config RENESAS_OSTM
 502         bool "Renesas OSTM timer driver" if COMPILE_TEST
 503         depends on GENERIC_CLOCKEVENTS
 504         select CLKSRC_MMIO
 505         help
 506           Enables the support for the Renesas OSTM.
 507
 508 config SH_TIMER_TMU
 509         bool "Renesas TMU timer driver" if COMPILE_TEST
 510         depends on GENERIC_CLOCKEVENTS
 511         depends on HAS_IOMEM
 512         default SYS_SUPPORTS_SH_TMU
 513         help
 514           This enables build of a clocksource and clockevent driver for
 515           the 32-bit Timer Unit (TMU) hardware available on a wide range
 516           SoCs from Renesas.
 517
 518 config EM_TIMER_STI
 519         bool "Renesas STI timer driver" if COMPILE_TEST
 520         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 521         default SYS_SUPPORTS_EM_STI
 522         help
 523           This enables build of a clocksource and clockevent driver for
 524           the 48-bit System Timer (STI) hardware available on a SoCs
 525           such as EMEV2 from former NEC Electronics.
 526
 527 config CLKSRC_QCOM
 528         bool "Qualcomm MSM timer" if COMPILE_TEST
 529         depends on ARM
 530         select CLKSRC_OF
 531         help
 532           This enables the clocksource and the per CPU clockevent driver for the
 533           Qualcomm SoCs.
 534
 535 config CLKSRC_VERSATILE
 536         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
 537         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 538         select CLKSRC_OF
 539         default y if MFD_VEXPRESS_SYSREG
 540         help
 541           This option enables clock source based on free running
 542           counter available in the "System Registers" block of
 543           ARM Versatile, RealView and Versatile Express reference
 544           platforms.
 545
 546 config CLKSRC_MIPS_GIC
 547         bool
 548         depends on MIPS_GIC
 549         select CLKSRC_OF
 550
 551 config CLKSRC_TANGO_XTAL
 552         bool "Clocksource for Tango SoC" if COMPILE_TEST
 553         depends on ARM
 554         select CLKSRC_OF
 555         select CLKSRC_MMIO
 556         help
 557           This enables the clocksource for Tango SoC
 558
 559 config CLKSRC_PXA
 560         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 561         depends on GENERIC_CLOCKEVENTS
 562         depends on HAS_IOMEM
 563         select CLKSRC_MMIO
 564         help
 565           This enables OST0 support available on PXA and SA-11x0
 566           platforms.
 567
 568 config H8300_TMR8
 569         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 570         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 571         help
 572           This enables the 8 bits timer for the H8300 platform.
 573
 574 config H8300_TMR16
 575         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 576         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 577         help
 578           This enables the 16 bits timer for the H8300 platform with the
 579           H83069 cpu.
 580
 581 config H8300_TPU
 582         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 583         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 584         help
 585           This enables the clocksource for the H8300 platform with the
 586           H8S2678 cpu.
 587
 588 config CLKSRC_IMX_GPT
 589         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 590         depends on ARM && CLKDEV_LOOKUP
 591         select CLKSRC_MMIO
 592
 593 config CLKSRC_ST_LPC
 594         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 595         select CLKSRC_OF if OF
 596         depends on HAS_IOMEM
 597         select CLKSRC_MMIO
 598         help
 599           Enable this option to use the Low Power controller timer
 600           as clocksource.
 601
 602 endmenu