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 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         select CLKSRC_MMIO
  33         help
  34           Enables the support for the BCM2835 timer driver.
  35
  36 config BCM_KONA_TIMER
  37         bool "BCM mobile timer driver" if COMPILE_TEST
  38         select CLKSRC_MMIO
  39         help
  40           Enables the support for the BCM Kona mobile timer driver.
  41
  42 config DIGICOLOR_TIMER
  43         bool "Digicolor timer driver" if COMPILE_TEST
  44         select CLKSRC_MMIO
  45         depends on HAS_IOMEM
  46         help
  47           Enables the support for the digicolor timer driver.
  48
  49 config DW_APB_TIMER
  50         bool "DW APB timer driver" if COMPILE_TEST
  51         help
  52           Enables the support for the dw_apb timer.
  53
  54 config DW_APB_TIMER_OF
  55         bool
  56         select DW_APB_TIMER
  57         select TIMER_OF
  58
  59 config FTTMR010_TIMER
  60         bool "Faraday Technology timer driver" if COMPILE_TEST
  61         depends on HAS_IOMEM
  62         select CLKSRC_MMIO
  63         select TIMER_OF
  64         select MFD_SYSCON
  65         help
  66           Enables support for the Faraday Technology timer block
  67           FTTMR010.
  68
  69 config ROCKCHIP_TIMER
  70         bool "Rockchip timer driver" if COMPILE_TEST
  71         depends on ARM || ARM64
  72         select TIMER_OF
  73         select CLKSRC_MMIO
  74         help
  75           Enables the support for the rockchip timer driver.
  76
  77 config ARMADA_370_XP_TIMER
  78         bool "Armada 370 and XP timer driver" if COMPILE_TEST
  79         depends on ARM
  80         select TIMER_OF
  81         select CLKSRC_MMIO
  82         help
  83           Enables the support for the Armada 370 and XP timer driver.
  84
  85 config MESON6_TIMER
  86         bool "Meson6 timer driver" if COMPILE_TEST
  87         select CLKSRC_MMIO
  88         help
  89           Enables the support for the Meson6 timer driver.
  90
  91 config ORION_TIMER
  92         bool "Orion timer driver" if COMPILE_TEST
  93         depends on ARM
  94         select TIMER_OF
  95         select CLKSRC_MMIO
  96         help
  97           Enables the support for the Orion timer driver
  98
  99 config OWL_TIMER
 100         bool "Owl timer driver" if COMPILE_TEST
 101         select CLKSRC_MMIO
 102         help
 103           Enables the support for the Actions Semi Owl timer driver.
 104
 105 config SUN4I_TIMER
 106         bool "Sun4i timer driver" if COMPILE_TEST
 107         depends on HAS_IOMEM
 108         select CLKSRC_MMIO
 109         select TIMER_OF
 110         help
 111           Enables support for the Sun4i timer.
 112
 113 config SUN5I_HSTIMER
 114         bool "Sun5i timer driver" if COMPILE_TEST
 115         select CLKSRC_MMIO
 116         depends on COMMON_CLK
 117         help
 118           Enables support the Sun5i timer.
 119
 120 config TEGRA_TIMER
 121         bool "Tegra timer driver" if COMPILE_TEST
 122         select CLKSRC_MMIO
 123         depends on ARM
 124         help
 125           Enables support for the Tegra driver.
 126
 127 config VT8500_TIMER
 128         bool "VT8500 timer driver" if COMPILE_TEST
 129         depends on HAS_IOMEM
 130         help
 131           Enables support for the VT8500 driver.
 132
 133 config CADENCE_TTC_TIMER
 134         bool "Cadence TTC timer driver" if COMPILE_TEST
 135         depends on COMMON_CLK
 136         help
 137           Enables support for the cadence ttc driver.
 138
 139 config ASM9260_TIMER
 140         bool "ASM9260 timer driver" if COMPILE_TEST
 141         select CLKSRC_MMIO
 142         select TIMER_OF
 143         help
 144           Enables support for the ASM9260 timer.
 145
 146 config CLKSRC_NOMADIK_MTU
 147         bool "Nomakdik clocksource driver" if COMPILE_TEST
 148         depends on ARM
 149         select CLKSRC_MMIO
 150         help
 151           Support for Multi Timer Unit. MTU provides access
 152           to multiple interrupt generating programmable
 153           32-bit free running decrementing counters.
 154
 155 config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 156         bool
 157         depends on CLKSRC_NOMADIK_MTU
 158         help
 159           Use the Multi Timer Unit as the sched_clock.
 160
 161 config CLKSRC_DBX500_PRCMU
 162         bool "Clocksource PRCMU Timer" if COMPILE_TEST
 163         depends on HAS_IOMEM
 164         help
 165           Use the always on PRCMU Timer as clocksource
 166
 167 config CLPS711X_TIMER
 168         bool "Cirrus logic timer driver" if COMPILE_TEST
 169         select CLKSRC_MMIO
 170         help
 171           Enables support for the Cirrus Logic PS711 timer.
 172
 173 config ATLAS7_TIMER
 174         bool "Atlas7 timer driver" if COMPILE_TEST
 175         select CLKSRC_MMIO
 176         help
 177           Enables support for the Atlas7 timer.
 178
 179 config MXS_TIMER
 180         bool "Mxs timer driver" if COMPILE_TEST
 181         select CLKSRC_MMIO
 182         select STMP_DEVICE
 183         help
 184           Enables support for the Mxs timer.
 185
 186 config PRIMA2_TIMER
 187         bool "Prima2 timer driver" if COMPILE_TEST
 188         select CLKSRC_MMIO
 189         help
 190           Enables support for the Prima2 timer.
 191
 192 config U300_TIMER
 193         bool "U300 timer driver" if COMPILE_TEST
 194         depends on ARM
 195         select CLKSRC_MMIO
 196         help
 197           Enables support for the U300 timer.
 198
 199 config NSPIRE_TIMER
 200         bool "NSpire timer driver" if COMPILE_TEST
 201         select CLKSRC_MMIO
 202         help
 203           Enables support for the Nspire timer.
 204
 205 config KEYSTONE_TIMER
 206         bool "Keystone timer driver" if COMPILE_TEST
 207         depends on ARM || ARM64
 208         select CLKSRC_MMIO
 209         help
 210           Enables support for the Keystone timer.
 211
 212 config INTEGRATOR_AP_TIMER
 213         bool "Integrator-ap timer driver" if COMPILE_TEST
 214         select CLKSRC_MMIO
 215         help
 216           Enables support for the Integrator-ap timer.
 217
 218 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 219         bool "Clocksource PRCMU Timer sched_clock"
 220         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 221         default y
 222         help
 223           Use the always on PRCMU Timer as sched_clock
 224
 225 config CLKSRC_EFM32
 226         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 227         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 228         select CLKSRC_MMIO
 229         default ARCH_EFM32
 230         help
 231           Support to use the timers of EFM32 SoCs as clock source and clock
 232           event device.
 233
 234 config CLKSRC_LPC32XX
 235         bool "Clocksource for LPC32XX" if COMPILE_TEST
 236         depends on HAS_IOMEM
 237         depends on ARM
 238         select CLKSRC_MMIO
 239         select TIMER_OF
 240         help
 241           Support for the LPC32XX clocksource.
 242
 243 config CLKSRC_PISTACHIO
 244         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 245         depends on HAS_IOMEM
 246         select TIMER_OF
 247         help
 248           Enables the clocksource for the Pistachio SoC.
 249
 250 config CLKSRC_TI_32K
 251         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 252         depends on GENERIC_SCHED_CLOCK
 253         select TIMER_OF if OF
 254         help
 255           This option enables support for Texas Instruments 32.768 Hz clocksource
 256           available on many OMAP-like platforms.
 257
 258 config CLKSRC_NPS
 259         bool "NPS400 clocksource driver" if COMPILE_TEST
 260         depends on !PHYS_ADDR_T_64BIT
 261         select CLKSRC_MMIO
 262         select TIMER_OF if OF
 263         help
 264           NPS400 clocksource support.
 265           Got 64 bit counter with update rate up to 1000MHz.
 266           This counter is accessed via couple of 32 bit memory mapped registers.
 267
 268 config CLKSRC_STM32
 269         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 270         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 271         select CLKSRC_MMIO
 272
 273 config CLKSRC_MPS2
 274         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
 275         depends on GENERIC_SCHED_CLOCK
 276         select CLKSRC_MMIO
 277         select TIMER_OF
 278
 279 config ARC_TIMERS
 280         bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
 281         select TIMER_OF
 282         help
 283           These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
 284           (ARC700 as well as ARC HS38).
 285           TIMER0 serves as clockevent while TIMER1 provides clocksource
 286
 287 config ARC_TIMERS_64BIT
 288         bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
 289         depends on ARC_TIMERS
 290         select TIMER_OF
 291         help
 292           This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
 293           RTC is implemented inside the core, while GFRC sits outside the core in
 294           ARConnect IP block. Driver automatically picks one of them for clocksource
 295           as appropriate.
 296
 297 config ARM_ARCH_TIMER
 298         bool
 299         select TIMER_OF if OF
 300         select TIMER_ACPI if ACPI
 301
 302 config ARM_ARCH_TIMER_EVTSTREAM
 303         bool "Enable ARM architected timer event stream generation by default"
 304         default y if ARM_ARCH_TIMER
 305         depends on ARM_ARCH_TIMER
 306         help
 307           This option enables support by default for event stream generation
 308           based on the ARM architected timer. It is used for waking up CPUs
 309           executing the wfe instruction at a frequency represented as a
 310           power-of-2 divisor of the clock rate. The behaviour can also be
 311           overridden on the command line using the
 312           clocksource.arm_arch_timer.evtstream parameter.
 313           The main use of the event stream is wfe-based timeouts of userspace
 314           locking implementations. It might also be useful for imposing timeout
 315           on wfe to safeguard against any programming errors in case an expected
 316           event is not generated.
 317           This must be disabled for hardware validation purposes to detect any
 318           hardware anomalies of missing events.
 319
 320 config ARM_ARCH_TIMER_OOL_WORKAROUND
 321         bool
 322
 323 config FSL_ERRATUM_A008585
 324         bool "Workaround for Freescale/NXP Erratum A-008585"
 325         default y
 326         depends on ARM_ARCH_TIMER && ARM64
 327         select ARM_ARCH_TIMER_OOL_WORKAROUND
 328         help
 329           This option enables a workaround for Freescale/NXP Erratum
 330           A-008585 ("ARM generic timer may contain an erroneous
 331           value").  The workaround will only be active if the
 332           fsl,erratum-a008585 property is found in the timer node.
 333
 334 config HISILICON_ERRATUM_161010101
 335         bool "Workaround for Hisilicon Erratum 161010101"
 336         default y
 337         select ARM_ARCH_TIMER_OOL_WORKAROUND
 338         depends on ARM_ARCH_TIMER && ARM64
 339         help
 340           This option enables a workaround for Hisilicon Erratum
 341           161010101. The workaround will be active if the hisilicon,erratum-161010101
 342           property is found in the timer node.
 343
 344 config ARM64_ERRATUM_858921
 345         bool "Workaround for Cortex-A73 erratum 858921"
 346         default y
 347         select ARM_ARCH_TIMER_OOL_WORKAROUND
 348         depends on ARM_ARCH_TIMER && ARM64
 349         help
 350           This option enables a workaround applicable to Cortex-A73
 351           (all versions), whose counter may return incorrect values.
 352           The workaround will be dynamically enabled when an affected
 353           core is detected.
 354
 355 config ARM_GLOBAL_TIMER
 356         bool "Support for the ARM global timer" if COMPILE_TEST
 357         select TIMER_OF if OF
 358         depends on ARM
 359         help
 360           This options enables support for the ARM global timer unit
 361
 362 config ARM_TIMER_SP804
 363         bool "Support for Dual Timer SP804 module"
 364         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 365         select CLKSRC_MMIO
 366         select TIMER_OF if OF
 367
 368 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 369         bool
 370         depends on ARM_GLOBAL_TIMER
 371         default y
 372         help
 373          Use ARM global timer clock source as sched_clock
 374
 375 config ARMV7M_SYSTICK
 376         bool "Support for the ARMv7M system time" if COMPILE_TEST
 377         select TIMER_OF if OF
 378         select CLKSRC_MMIO
 379         help
 380           This options enables support for the ARMv7M system timer unit
 381
 382 config ATMEL_PIT
 383         select TIMER_OF if OF
 384         def_bool SOC_AT91SAM9 || SOC_SAMA5
 385
 386 config ATMEL_ST
 387         bool "Atmel ST timer support" if COMPILE_TEST
 388         select TIMER_OF
 389         select MFD_SYSCON
 390         help
 391           Support for the Atmel ST timer.
 392
 393 config CLKSRC_METAG_GENERIC
 394         def_bool y if METAG
 395         help
 396           This option enables support for the Meta per-thread timers.
 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 SYS_SUPPORTS_SH_MTU2
 445         bool
 446
 447 config SYS_SUPPORTS_SH_TMU
 448         bool
 449
 450 config SYS_SUPPORTS_EM_STI
 451         bool
 452
 453 config CLKSRC_JCORE_PIT
 454         bool "J-Core PIT timer driver" if COMPILE_TEST
 455         depends on OF
 456         depends on HAS_IOMEM
 457         select CLKSRC_MMIO
 458         help
 459           This enables build of clocksource and clockevent driver for
 460           the integrated PIT in the J-Core synthesizable, open source SoC.
 461
 462 config SH_TIMER_CMT
 463         bool "Renesas CMT timer driver" if COMPILE_TEST
 464         depends on HAS_IOMEM
 465         default SYS_SUPPORTS_SH_CMT
 466         help
 467           This enables build of a clocksource and clockevent driver for
 468           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 469           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 470
 471 config SH_TIMER_MTU2
 472         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 473         depends on HAS_IOMEM
 474         default SYS_SUPPORTS_SH_MTU2
 475         help
 476           This enables build of a clockevent driver for the Multi-Function
 477           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 478           This hardware comes with 16 bit-timer registers.
 479
 480 config RENESAS_OSTM
 481         bool "Renesas OSTM timer driver" if COMPILE_TEST
 482         select CLKSRC_MMIO
 483         help
 484           Enables the support for the Renesas OSTM.
 485
 486 config SH_TIMER_TMU
 487         bool "Renesas TMU timer driver" if COMPILE_TEST
 488         depends on HAS_IOMEM
 489         default SYS_SUPPORTS_SH_TMU
 490         help
 491           This enables build of a clocksource and clockevent driver for
 492           the 32-bit Timer Unit (TMU) hardware available on a wide range
 493           SoCs from Renesas.
 494
 495 config EM_TIMER_STI
 496         bool "Renesas STI timer driver" if COMPILE_TEST
 497         depends on HAS_IOMEM
 498         default SYS_SUPPORTS_EM_STI
 499         help
 500           This enables build of a clocksource and clockevent driver for
 501           the 48-bit System Timer (STI) hardware available on a SoCs
 502           such as EMEV2 from former NEC Electronics.
 503
 504 config CLKSRC_QCOM
 505         bool "Qualcomm MSM timer" if COMPILE_TEST
 506         depends on ARM
 507         select TIMER_OF
 508         help
 509           This enables the clocksource and the per CPU clockevent driver for the
 510           Qualcomm SoCs.
 511
 512 config CLKSRC_VERSATILE
 513         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
 514         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 515         select TIMER_OF
 516         default y if MFD_VEXPRESS_SYSREG
 517         help
 518           This option enables clock source based on free running
 519           counter available in the "System Registers" block of
 520           ARM Versatile, RealView and Versatile Express reference
 521           platforms.
 522
 523 config CLKSRC_MIPS_GIC
 524         bool
 525         depends on MIPS_GIC
 526         select TIMER_OF
 527
 528 config CLKSRC_TANGO_XTAL
 529         bool "Clocksource for Tango SoC" if COMPILE_TEST
 530         depends on ARM
 531         select TIMER_OF
 532         select CLKSRC_MMIO
 533         help
 534           This enables the clocksource for Tango SoC
 535
 536 config CLKSRC_PXA
 537         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 538         depends on HAS_IOMEM
 539         select CLKSRC_MMIO
 540         help
 541           This enables OST0 support available on PXA and SA-11x0
 542           platforms.
 543
 544 config H8300_TMR8
 545         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 546         depends on HAS_IOMEM
 547         help
 548           This enables the 8 bits timer for the H8300 platform.
 549
 550 config H8300_TMR16
 551         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 552         depends on HAS_IOMEM
 553         help
 554           This enables the 16 bits timer for the H8300 platform with the
 555           H83069 cpu.
 556
 557 config H8300_TPU
 558         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 559         depends on HAS_IOMEM
 560         help
 561           This enables the clocksource for the H8300 platform with the
 562           H8S2678 cpu.
 563
 564 config CLKSRC_IMX_GPT
 565         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 566         depends on ARM && CLKDEV_LOOKUP
 567         select CLKSRC_MMIO
 568
 569 config CLKSRC_IMX_TPM
 570         bool "Clocksource using i.MX TPM" if COMPILE_TEST
 571         depends on ARM && CLKDEV_LOOKUP
 572         select CLKSRC_MMIO
 573         help
 574           Enable this option to use IMX Timer/PWM Module (TPM) timer as
 575           clocksource.
 576
 577 config CLKSRC_ST_LPC
 578         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 579         select TIMER_OF if OF
 580         depends on HAS_IOMEM
 581         select CLKSRC_MMIO
 582         help
 583           Enable this option to use the Low Power controller timer
 584           as clocksource.
 585
 586 endmenu