drivers/clocksource/Kconfig

   1 menu "Clock Source drivers"
   2         depends on GENERIC_CLOCKEVENTS
   3
   4 config TIMER_OF
   5         bool
   6         select TIMER_PROBE
   7
   8 config TIMER_ACPI
   9         bool
  10         select TIMER_PROBE
  11
  12 config TIMER_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 OMAP_DM_TIMER
  25         bool
  26
  27 config CLKBLD_I8253
  28         def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
  29
  30 config CLKSRC_MMIO
  31         bool
  32
  33 config BCM2835_TIMER
  34         bool "BCM2835 timer driver" if COMPILE_TEST
  35         select CLKSRC_MMIO
  36         help
  37           Enables the support for the BCM2835 timer driver.
  38
  39 config BCM_KONA_TIMER
  40         bool "BCM mobile timer driver" if COMPILE_TEST
  41         select CLKSRC_MMIO
  42         help
  43           Enables the support for the BCM Kona mobile timer driver.
  44
  45 config DIGICOLOR_TIMER
  46         bool "Digicolor timer driver" if COMPILE_TEST
  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         help
  55           Enables the support for the dw_apb timer.
  56
  57 config DW_APB_TIMER_OF
  58         bool
  59         select DW_APB_TIMER
  60         select TIMER_OF
  61
  62 config FTTMR010_TIMER
  63         bool "Faraday Technology timer driver" if COMPILE_TEST
  64         depends on HAS_IOMEM
  65         select CLKSRC_MMIO
  66         select TIMER_OF
  67         select MFD_SYSCON
  68         help
  69           Enables support for the Faraday Technology timer block
  70           FTTMR010.
  71
  72 config ROCKCHIP_TIMER
  73         bool "Rockchip timer driver" if COMPILE_TEST
  74         depends on ARM || ARM64
  75         select TIMER_OF
  76         select CLKSRC_MMIO
  77         help
  78           Enables the support for the rockchip timer driver.
  79
  80 config ARMADA_370_XP_TIMER
  81         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  82         depends on ARM
  83         select TIMER_OF
  84         select CLKSRC_MMIO
  85         help
  86           Enables the support for the Armada 370 and XP timer driver.
  87
  88 config MESON6_TIMER
  89         bool "Meson6 timer driver" if COMPILE_TEST
  90         select CLKSRC_MMIO
  91         help
  92           Enables the support for the Meson6 timer driver.
  93
  94 config ORION_TIMER
  95         bool "Orion timer driver" if COMPILE_TEST
  96         depends on ARM
  97         select TIMER_OF
  98         select CLKSRC_MMIO
  99         help
 100           Enables the support for the Orion timer driver
 101
 102 config OWL_TIMER
 103         bool "Owl timer driver" if COMPILE_TEST
 104         select CLKSRC_MMIO
 105         help
 106           Enables the support for the Actions Semi Owl timer driver.
 107
 108 config SUN4I_TIMER
 109         bool "Sun4i timer driver" if COMPILE_TEST
 110         depends on HAS_IOMEM
 111         select CLKSRC_MMIO
 112         select TIMER_OF
 113         help
 114           Enables support for the Sun4i timer.
 115
 116 config SUN5I_HSTIMER
 117         bool "Sun5i timer driver" if COMPILE_TEST
 118         select CLKSRC_MMIO
 119         depends on COMMON_CLK
 120         help
 121           Enables support the Sun5i timer.
 122
 123 config TEGRA_TIMER
 124         bool "Tegra timer driver" if COMPILE_TEST
 125         select CLKSRC_MMIO
 126         depends on ARM
 127         help
 128           Enables support for the Tegra driver.
 129
 130 config VT8500_TIMER
 131         bool "VT8500 timer driver" if COMPILE_TEST
 132         depends on HAS_IOMEM
 133         help
 134           Enables support for the VT8500 driver.
 135
 136 config CADENCE_TTC_TIMER
 137         bool "Cadence TTC timer driver" if COMPILE_TEST
 138         depends on COMMON_CLK
 139         help
 140           Enables support for the cadence ttc driver.
 141
 142 config ASM9260_TIMER
 143         bool "ASM9260 timer driver" if COMPILE_TEST
 144         select CLKSRC_MMIO
 145         select TIMER_OF
 146         help
 147           Enables support for the ASM9260 timer.
 148
 149 config CLKSRC_NOMADIK_MTU
 150         bool "Nomakdik clocksource driver" if COMPILE_TEST
 151         depends on ARM
 152         select CLKSRC_MMIO
 153         help
 154           Support for Multi Timer Unit. MTU provides access
 155           to multiple interrupt generating programmable
 156           32-bit free running decrementing counters.
 157
 158 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 159         bool
 160         depends on CLKSRC_NOMADIK_MTU
 161         help
 162           Use the Multi Timer Unit as the sched_clock.
 163
 164 config CLKSRC_DBX500_PRCMU
 165         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 166         depends on HAS_IOMEM
 167         help
 168           Use the always on PRCMU Timer as clocksource
 169
 170 config CLPS711X_TIMER
 171         bool "Cirrus logic timer driver" if COMPILE_TEST
 172         select CLKSRC_MMIO
 173         help
 174           Enables support for the Cirrus Logic PS711 timer.
 175
 176 config ATLAS7_TIMER
 177         bool "Atlas7 timer driver" if COMPILE_TEST
 178         select CLKSRC_MMIO
 179         help
 180           Enables support for the Atlas7 timer.
 181
 182 config MXS_TIMER
 183         bool "Mxs timer driver" if COMPILE_TEST
 184         select CLKSRC_MMIO
 185         select STMP_DEVICE
 186         help
 187           Enables support for the Mxs timer.
 188
 189 config PRIMA2_TIMER
 190         bool "Prima2 timer driver" if COMPILE_TEST
 191         select CLKSRC_MMIO
 192         help
 193           Enables support for the Prima2 timer.
 194
 195 config U300_TIMER
 196         bool "U300 timer driver" if COMPILE_TEST
 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         select CLKSRC_MMIO
 205         help
 206           Enables support for the Nspire timer.
 207
 208 config KEYSTONE_TIMER
 209         bool "Keystone timer driver" if COMPILE_TEST
 210         depends on ARM || ARM64
 211         select CLKSRC_MMIO
 212         help
 213           Enables support for the Keystone timer.
 214
 215 config INTEGRATOR_AP_TIMER
 216         bool "Integrator-ap timer driver" if COMPILE_TEST
 217         select CLKSRC_MMIO
 218         help
 219           Enables support for the Integrator-ap timer.
 220
 221 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 222         bool "Clocksource PRCMU Timer sched_clock"
 223         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 224         default y
 225         help
 226           Use the always on PRCMU Timer as sched_clock
 227
 228 config CLKSRC_EFM32
 229         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 230         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 231         select CLKSRC_MMIO
 232         default ARCH_EFM32
 233         help
 234           Support to use the timers of EFM32 SoCs as clock source and clock
 235           event device.
 236
 237 config CLKSRC_LPC32XX
 238         bool "Clocksource for LPC32XX" if COMPILE_TEST
 239         depends on HAS_IOMEM
 240         depends on ARM
 241         select CLKSRC_MMIO
 242         select TIMER_OF
 243         help
 244           Support for the LPC32XX clocksource.
 245
 246 config CLKSRC_PISTACHIO
 247         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 248         depends on HAS_IOMEM
 249         select TIMER_OF
 250         help
 251           Enables the clocksource for the Pistachio SoC.
 252
 253 config CLKSRC_TI_32K
 254         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 255         depends on GENERIC_SCHED_CLOCK
 256         select TIMER_OF if OF
 257         help
 258           This option enables support for Texas Instruments 32.768 Hz clocksource
 259           available on many OMAP-like platforms.
 260
 261 config CLKSRC_NPS
 262         bool "NPS400 clocksource driver" if COMPILE_TEST
 263         depends on !PHYS_ADDR_T_64BIT
 264         select CLKSRC_MMIO
 265         select TIMER_OF if OF
 266         help
 267           NPS400 clocksource support.
 268           Got 64 bit counter with update rate up to 1000MHz.
 269           This counter is accessed via couple of 32 bit memory mapped registers.
 270
 271 config CLKSRC_STM32
 272         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 273         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 274         select CLKSRC_MMIO
 275         select TIMER_OF
 276
 277 config CLKSRC_MPS2
 278         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
 279         depends on GENERIC_SCHED_CLOCK
 280         select CLKSRC_MMIO
 281         select TIMER_OF
 282
 283 config ARC_TIMERS
 284         bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
 285         select TIMER_OF
 286         help
 287           These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
 288           (ARC700 as well as ARC HS38).
 289           TIMER0 serves as clockevent while TIMER1 provides clocksource
 290
 291 config ARC_TIMERS_64BIT
 292         bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
 293         depends on ARC_TIMERS
 294         select TIMER_OF
 295         help
 296           This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
 297           RTC is implemented inside the core, while GFRC sits outside the core in
 298           ARConnect IP block. Driver automatically picks one of them for clocksource
 299           as appropriate.
 300
 301 config ARM_ARCH_TIMER
 302         bool
 303         select TIMER_OF if OF
 304         select TIMER_ACPI if ACPI
 305
 306 config ARM_ARCH_TIMER_EVTSTREAM
 307         bool "Enable ARM architected timer event stream generation by default"
 308         default y if ARM_ARCH_TIMER
 309         depends on ARM_ARCH_TIMER
 310         help
 311           This option enables support by default for event stream generation
 312           based on the ARM architected timer. It is used for waking up CPUs
 313           executing the wfe instruction at a frequency represented as a
 314           power-of-2 divisor of the clock rate. The behaviour can also be
 315           overridden on the command line using the
 316           clocksource.arm_arch_timer.evtstream parameter.
 317           The main use of the event stream is wfe-based timeouts of userspace
 318           locking implementations. It might also be useful for imposing timeout
 319           on wfe to safeguard against any programming errors in case an expected
 320           event is not generated.
 321           This must be disabled for hardware validation purposes to detect any
 322           hardware anomalies of missing events.
 323
 324 config ARM_ARCH_TIMER_OOL_WORKAROUND
 325         bool
 326
 327 config FSL_ERRATUM_A008585
 328         bool "Workaround for Freescale/NXP Erratum A-008585"
 329         default y
 330         depends on ARM_ARCH_TIMER && ARM64
 331         select ARM_ARCH_TIMER_OOL_WORKAROUND
 332         help
 333           This option enables a workaround for Freescale/NXP Erratum
 334           A-008585 ("ARM generic timer may contain an erroneous
 335           value").  The workaround will only be active if the
 336           fsl,erratum-a008585 property is found in the timer node.
 337
 338 config HISILICON_ERRATUM_161010101
 339         bool "Workaround for Hisilicon Erratum 161010101"
 340         default y
 341         select ARM_ARCH_TIMER_OOL_WORKAROUND
 342         depends on ARM_ARCH_TIMER && ARM64
 343         help
 344           This option enables a workaround for Hisilicon Erratum
 345           161010101. The workaround will be active if the hisilicon,erratum-161010101
 346           property is found in the timer node.
 347
 348 config ARM64_ERRATUM_858921
 349         bool "Workaround for Cortex-A73 erratum 858921"
 350         default y
 351         select ARM_ARCH_TIMER_OOL_WORKAROUND
 352         depends on ARM_ARCH_TIMER && ARM64
 353         help
 354           This option enables a workaround applicable to Cortex-A73
 355           (all versions), whose counter may return incorrect values.
 356           The workaround will be dynamically enabled when an affected
 357           core is detected.
 358
 359 config ARM_GLOBAL_TIMER
 360         bool "Support for the ARM global timer" if COMPILE_TEST
 361         select TIMER_OF if OF
 362         depends on ARM
 363         help
 364           This options enables support for the ARM global timer unit
 365
 366 config ARM_TIMER_SP804
 367         bool "Support for Dual Timer SP804 module"
 368         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 369         select CLKSRC_MMIO
 370         select TIMER_OF if OF
 371
 372 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 373         bool
 374         depends on ARM_GLOBAL_TIMER
 375         default y
 376         help
 377          Use ARM global timer clock source as sched_clock
 378
 379 config ARMV7M_SYSTICK
 380         bool "Support for the ARMv7M system time" if COMPILE_TEST
 381         select TIMER_OF if OF
 382         select CLKSRC_MMIO
 383         help
 384           This options enables support for the ARMv7M system timer unit
 385
 386 config ATMEL_PIT
 387         select TIMER_OF if OF
 388         def_bool SOC_AT91SAM9 || SOC_SAMA5
 389
 390 config ATMEL_ST
 391         bool "Atmel ST timer support" if COMPILE_TEST
 392         depends on HAS_IOMEM
 393         select TIMER_OF
 394         select MFD_SYSCON
 395         help
 396           Support for the Atmel ST timer.
 397
 398 config CLKSRC_EXYNOS_MCT
 399         bool "Exynos multi core timer driver" if COMPILE_TEST
 400         depends on ARM || ARM64
 401         help
 402           Support for Multi Core Timer controller on Exynos SoCs.
 403
 404 config CLKSRC_SAMSUNG_PWM
 405         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
 406         depends on HAS_IOMEM
 407         help
 408           This is a new clocksource driver for the PWM timer found in
 409           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 410           for all devicetree enabled platforms. This driver will be
 411           needed only on systems that do not have the Exynos MCT available.
 412
 413 config FSL_FTM_TIMER
 414         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 415         depends on HAS_IOMEM
 416         select CLKSRC_MMIO
 417         help
 418           Support for Freescale FlexTimer Module (FTM) timer.
 419
 420 config VF_PIT_TIMER
 421         bool
 422         select CLKSRC_MMIO
 423         help
 424           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 425
 426 config OXNAS_RPS_TIMER
 427         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
 428         select TIMER_OF
 429         select CLKSRC_MMIO
 430         help
 431           This enables support for the Oxford Semiconductor OXNAS RPS timers.
 432
 433 config SYS_SUPPORTS_SH_CMT
 434         bool
 435
 436 config MTK_TIMER
 437         bool "Mediatek timer driver" if COMPILE_TEST
 438         depends on HAS_IOMEM
 439         select TIMER_OF
 440         select CLKSRC_MMIO
 441         help
 442           Support for Mediatek timer driver.
 443
 444 config SPRD_TIMER
 445         bool "Spreadtrum timer driver" if COMPILE_TEST
 446         depends on HAS_IOMEM
 447         select TIMER_OF
 448         help
 449           Enables support for the Spreadtrum timer driver.
 450
 451 config SYS_SUPPORTS_SH_MTU2
 452         bool
 453
 454 config SYS_SUPPORTS_SH_TMU
 455         bool
 456
 457 config SYS_SUPPORTS_EM_STI
 458         bool
 459
 460 config CLKSRC_JCORE_PIT
 461         bool "J-Core PIT timer driver" if COMPILE_TEST
 462         depends on OF
 463         depends on HAS_IOMEM
 464         select CLKSRC_MMIO
 465         help
 466           This enables build of clocksource and clockevent driver for
 467           the integrated PIT in the J-Core synthesizable, open source SoC.
 468
 469 config SH_TIMER_CMT
 470         bool "Renesas CMT timer driver" if COMPILE_TEST
 471         depends on HAS_IOMEM
 472         default SYS_SUPPORTS_SH_CMT
 473         help
 474           This enables build of a clocksource and clockevent driver for
 475           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 476           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 477
 478 config SH_TIMER_MTU2
 479         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 480         depends on HAS_IOMEM
 481         default SYS_SUPPORTS_SH_MTU2
 482         help
 483           This enables build of a clockevent driver for the Multi-Function
 484           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 485           This hardware comes with 16 bit-timer registers.
 486
 487 config RENESAS_OSTM
 488         bool "Renesas OSTM timer driver" if COMPILE_TEST
 489         select CLKSRC_MMIO
 490         help
 491           Enables the support for the Renesas OSTM.
 492
 493 config SH_TIMER_TMU
 494         bool "Renesas TMU timer driver" if COMPILE_TEST
 495         depends on HAS_IOMEM
 496         default SYS_SUPPORTS_SH_TMU
 497         help
 498           This enables build of a clocksource and clockevent driver for
 499           the 32-bit Timer Unit (TMU) hardware available on a wide range
 500           SoCs from Renesas.
 501
 502 config EM_TIMER_STI
 503         bool "Renesas STI timer driver" if COMPILE_TEST
 504         depends on HAS_IOMEM
 505         default SYS_SUPPORTS_EM_STI
 506         help
 507           This enables build of a clocksource and clockevent driver for
 508           the 48-bit System Timer (STI) hardware available on a SoCs
 509           such as EMEV2 from former NEC Electronics.
 510
 511 config CLKSRC_QCOM
 512         bool "Qualcomm MSM timer" if COMPILE_TEST
 513         depends on ARM
 514         select TIMER_OF
 515         help
 516           This enables the clocksource and the per CPU clockevent driver for the
 517           Qualcomm SoCs.
 518
 519 config CLKSRC_VERSATILE
 520         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
 521         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 522         select TIMER_OF
 523         default y if MFD_VEXPRESS_SYSREG
 524         help
 525           This option enables clock source based on free running
 526           counter available in the "System Registers" block of
 527           ARM Versatile, RealView and Versatile Express reference
 528           platforms.
 529
 530 config CLKSRC_MIPS_GIC
 531         bool
 532         depends on MIPS_GIC
 533         select TIMER_OF
 534
 535 config CLKSRC_TANGO_XTAL
 536         bool "Clocksource for Tango SoC" if COMPILE_TEST
 537         depends on ARM
 538         select TIMER_OF
 539         select CLKSRC_MMIO
 540         help
 541           This enables the clocksource for Tango SoC
 542
 543 config CLKSRC_PXA
 544         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 545         depends on HAS_IOMEM
 546         select CLKSRC_MMIO
 547         help
 548           This enables OST0 support available on PXA and SA-11x0
 549           platforms.
 550
 551 config H8300_TMR8
 552         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 553         depends on HAS_IOMEM
 554         help
 555           This enables the 8 bits timer for the H8300 platform.
 556
 557 config H8300_TMR16
 558         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 559         depends on HAS_IOMEM
 560         help
 561           This enables the 16 bits timer for the H8300 platform with the
 562           H83069 cpu.
 563
 564 config H8300_TPU
 565         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 566         depends on HAS_IOMEM
 567         help
 568           This enables the clocksource for the H8300 platform with the
 569           H8S2678 cpu.
 570
 571 config CLKSRC_IMX_GPT
 572         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 573         depends on ARM && CLKDEV_LOOKUP
 574         select CLKSRC_MMIO
 575
 576 config CLKSRC_IMX_TPM
 577         bool "Clocksource using i.MX TPM" if COMPILE_TEST
 578         depends on ARM && CLKDEV_LOOKUP
 579         select CLKSRC_MMIO
 580         help
 581           Enable this option to use IMX Timer/PWM Module (TPM) timer as
 582           clocksource.
 583
 584 config CLKSRC_ST_LPC
 585         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 586         select TIMER_OF if OF
 587         depends on HAS_IOMEM
 588         select CLKSRC_MMIO
 589         help
 590           Enable this option to use the Low Power controller timer
 591           as clocksource.
 592
 593 config ATCPIT100_TIMER
 594         bool "ATCPIT100 timer driver"
 595         depends on NDS32 || COMPILE_TEST
 596         depends on HAS_IOMEM
 597         select TIMER_OF
 598         default NDS32
 599         help
 600           This option enables support for the Andestech ATCPIT100 timers.
 601
 602 endmenu