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