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 CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 210         bool "Clocksource PRCMU Timer sched_clock"
 211         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
 212         default y
 213         help
 214           Use the always on PRCMU Timer as sched_clock
 215
 216 config CLKSRC_EFM32
 217         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
 218         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
 219         select CLKSRC_MMIO
 220         default ARCH_EFM32
 221         help
 222           Support to use the timers of EFM32 SoCs as clock source and clock
 223           event device.
 224
 225 config CLKSRC_LPC32XX
 226         bool "Clocksource for LPC32XX" if COMPILE_TEST
 227         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 228         depends on ARM
 229         select CLKSRC_MMIO
 230         select CLKSRC_OF
 231         help
 232           Support for the LPC32XX clocksource.
 233
 234 config CLKSRC_PISTACHIO
 235         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
 236         depends on HAS_IOMEM
 237         select CLKSRC_OF
 238         help
 239           Enables the clocksource for the Pistachio SoC.
 240
 241 config CLKSRC_TI_32K
 242         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
 243         depends on GENERIC_SCHED_CLOCK
 244         select CLKSRC_OF if OF
 245         help
 246           This option enables support for Texas Instruments 32.768 Hz clocksource
 247           available on many OMAP-like platforms.
 248
 249 config CLKSRC_NPS
 250         bool "NPS400 clocksource driver" if COMPILE_TEST
 251         depends on !PHYS_ADDR_T_64BIT
 252         select CLKSRC_MMIO
 253         select CLKSRC_OF if OF
 254         help
 255           NPS400 clocksource support.
 256           Got 64 bit counter with update rate up to 1000MHz.
 257           This counter is accessed via couple of 32 bit memory mapped registers.
 258
 259 config CLKSRC_STM32
 260         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 261         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 262         select CLKSRC_MMIO
 263
 264 config CLKSRC_MPS2
 265         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
 266         depends on GENERIC_SCHED_CLOCK
 267         select CLKSRC_MMIO
 268         select CLKSRC_OF
 269
 270 config ARM_ARCH_TIMER
 271         bool
 272         select CLKSRC_OF if OF
 273         select CLKSRC_ACPI if ACPI
 274
 275 config ARM_ARCH_TIMER_EVTSTREAM
 276         bool "Support for ARM architected timer event stream generation"
 277         default y if ARM_ARCH_TIMER
 278         depends on ARM_ARCH_TIMER
 279         help
 280           This option enables support for event stream generation based on
 281           the ARM architected timer. It is used for waking up CPUs executing
 282           the wfe instruction at a frequency represented as a power-of-2
 283           divisor of the clock rate.
 284           The main use of the event stream is wfe-based timeouts of userspace
 285           locking implementations. It might also be useful for imposing timeout
 286           on wfe to safeguard against any programming errors in case an expected
 287           event is not generated.
 288           This must be disabled for hardware validation purposes to detect any
 289           hardware anomalies of missing events.
 290
 291 config ARM_GLOBAL_TIMER
 292         bool
 293         select CLKSRC_OF if OF
 294         help
 295           This options enables support for the ARM global timer unit
 296
 297 config ARM_TIMER_SP804
 298         bool "Support for Dual Timer SP804 module"
 299         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 300         select CLKSRC_MMIO
 301         select CLKSRC_OF if OF
 302
 303 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 304         bool
 305         depends on ARM_GLOBAL_TIMER
 306         default y
 307         help
 308          Use ARM global timer clock source as sched_clock
 309
 310 config ARMV7M_SYSTICK
 311         bool "Support for the ARMv7M system time" if COMPILE_TEST
 312         select CLKSRC_OF if OF
 313         select CLKSRC_MMIO
 314         help
 315           This options enables support for the ARMv7M system timer unit
 316
 317 config ATMEL_PIT
 318         select CLKSRC_OF if OF
 319         def_bool SOC_AT91SAM9 || SOC_SAMA5
 320
 321 config ATMEL_ST
 322         bool
 323         select CLKSRC_OF
 324         select MFD_SYSCON
 325
 326 config CLKSRC_METAG_GENERIC
 327         def_bool y if METAG
 328         help
 329           This option enables support for the Meta per-thread timers.
 330
 331 config CLKSRC_EXYNOS_MCT
 332         bool "Exynos multi core timer driver" if COMPILE_TEST
 333         depends on ARM
 334         help
 335           Support for Multi Core Timer controller on Exynos SoCs.
 336
 337 config CLKSRC_SAMSUNG_PWM
 338         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
 339         depends on GENERIC_CLOCKEVENTS
 340         depends on HAS_IOMEM
 341         help
 342           This is a new clocksource driver for the PWM timer found in
 343           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 344           for all devicetree enabled platforms. This driver will be
 345           needed only on systems that do not have the Exynos MCT available.
 346
 347 config FSL_FTM_TIMER
 348         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 349         depends on GENERIC_CLOCKEVENTS
 350         depends on HAS_IOMEM
 351         select CLKSRC_MMIO
 352         help
 353           Support for Freescale FlexTimer Module (FTM) timer.
 354
 355 config VF_PIT_TIMER
 356         bool
 357         select CLKSRC_MMIO
 358         help
 359           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 360
 361 config OXNAS_RPS_TIMER
 362         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
 363         depends on GENERIC_CLOCKEVENTS
 364         select CLKSRC_OF
 365         select CLKSRC_MMIO
 366         help
 367           This enables support for the Oxford Semiconductor OXNAS RPS timers.
 368
 369 config SYS_SUPPORTS_SH_CMT
 370         bool
 371
 372 config MTK_TIMER
 373         bool "Mediatek timer driver" if COMPILE_TEST
 374         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 375         select CLKSRC_OF
 376         select CLKSRC_MMIO
 377         help
 378           Support for Mediatek timer driver.
 379
 380 config SYS_SUPPORTS_SH_MTU2
 381         bool
 382
 383 config SYS_SUPPORTS_SH_TMU
 384         bool
 385
 386 config SYS_SUPPORTS_EM_STI
 387         bool
 388
 389 config SH_TIMER_CMT
 390         bool "Renesas CMT timer driver" if COMPILE_TEST
 391         depends on GENERIC_CLOCKEVENTS
 392         depends on HAS_IOMEM
 393         default SYS_SUPPORTS_SH_CMT
 394         help
 395           This enables build of a clocksource and clockevent driver for
 396           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 397           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 398
 399 config SH_TIMER_MTU2
 400         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 401         depends on GENERIC_CLOCKEVENTS
 402         depends on HAS_IOMEM
 403         default SYS_SUPPORTS_SH_MTU2
 404         help
 405           This enables build of a clockevent driver for the Multi-Function
 406           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 407           This hardware comes with 16 bit-timer registers.
 408
 409 config SH_TIMER_TMU
 410         bool "Renesas TMU timer driver" if COMPILE_TEST
 411         depends on GENERIC_CLOCKEVENTS
 412         depends on HAS_IOMEM
 413         default SYS_SUPPORTS_SH_TMU
 414         help
 415           This enables build of a clocksource and clockevent driver for
 416           the 32-bit Timer Unit (TMU) hardware available on a wide range
 417           SoCs from Renesas.
 418
 419 config EM_TIMER_STI
 420         bool "Renesas STI timer driver" if COMPILE_TEST
 421         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 422         default SYS_SUPPORTS_EM_STI
 423         help
 424           This enables build of a clocksource and clockevent driver for
 425           the 48-bit System Timer (STI) hardware available on a SoCs
 426           such as EMEV2 from former NEC Electronics.
 427
 428 config CLKSRC_QCOM
 429         bool "Qualcomm MSM timer" if COMPILE_TEST
 430         depends on ARM
 431         select CLKSRC_OF
 432         help
 433           This enables the clocksource and the per CPU clockevent driver for the
 434           Qualcomm SoCs.
 435
 436 config CLKSRC_VERSATILE
 437         bool "ARM Versatile (Express) reference platforms clock source"
 438         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 439         select CLKSRC_OF
 440         default y if MFD_VEXPRESS_SYSREG
 441         help
 442           This option enables clock source based on free running
 443           counter available in the "System Registers" block of
 444           ARM Versatile, RealView and Versatile Express reference
 445           platforms.
 446
 447 config CLKSRC_MIPS_GIC
 448         bool
 449         depends on MIPS_GIC
 450         select CLKSRC_OF
 451
 452 config CLKSRC_TANGO_XTAL
 453         bool "Clocksource for Tango SoC" if COMPILE_TEST
 454         depends on ARM
 455         select CLKSRC_OF
 456         select CLKSRC_MMIO
 457         help
 458           This enables the clocksource for Tango SoC
 459
 460 config CLKSRC_PXA
 461         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 462         depends on GENERIC_CLOCKEVENTS
 463         depends on HAS_IOMEM
 464         select CLKSRC_MMIO
 465         help
 466           This enables OST0 support available on PXA and SA-11x0
 467           platforms.
 468
 469 config H8300_TMR8
 470         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 471         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 472         help
 473           This enables the 8 bits timer for the H8300 platform.
 474
 475 config H8300_TMR16
 476         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 477         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 478         help
 479           This enables the 16 bits timer for the H8300 platform with the
 480           H83069 cpu.
 481
 482 config H8300_TPU
 483         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 484         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 485         help
 486           This enables the clocksource for the H8300 platform with the
 487           H8S2678 cpu.
 488
 489 config CLKSRC_IMX_GPT
 490         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 491         depends on ARM && CLKDEV_LOOKUP
 492         select CLKSRC_MMIO
 493
 494 config CLKSRC_ST_LPC
 495         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 496         select CLKSRC_OF if OF
 497         depends on HAS_IOMEM
 498         select CLKSRC_MMIO
 499         help
 500           Enable this option to use the Low Power controller timer
 501           as clocksource.
 502
 503 endmenu