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_STM32
 185         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
 186         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
 187         select CLKSRC_MMIO
 188
 189 config ARM_ARCH_TIMER
 190         bool
 191         select CLKSRC_OF if OF
 192         select CLKSRC_ACPI if ACPI
 193
 194 config ARM_ARCH_TIMER_EVTSTREAM
 195         bool "Support for ARM architected timer event stream generation"
 196         default y if ARM_ARCH_TIMER
 197         depends on ARM_ARCH_TIMER
 198         help
 199           This option enables support for event stream generation based on
 200           the ARM architected timer. It is used for waking up CPUs executing
 201           the wfe instruction at a frequency represented as a power-of-2
 202           divisor of the clock rate.
 203           The main use of the event stream is wfe-based timeouts of userspace
 204           locking implementations. It might also be useful for imposing timeout
 205           on wfe to safeguard against any programming errors in case an expected
 206           event is not generated.
 207           This must be disabled for hardware validation purposes to detect any
 208           hardware anomalies of missing events.
 209
 210 config ARM_GLOBAL_TIMER
 211         bool
 212         select CLKSRC_OF if OF
 213         help
 214           This options enables support for the ARM global timer unit
 215
 216 config ARM_TIMER_SP804
 217         bool "Support for Dual Timer SP804 module"
 218         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
 219         select CLKSRC_MMIO
 220         select CLKSRC_OF if OF
 221
 222 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 223         bool
 224         depends on ARM_GLOBAL_TIMER
 225         default y
 226         help
 227          Use ARM global timer clock source as sched_clock
 228
 229 config ARMV7M_SYSTICK
 230         bool
 231         select CLKSRC_OF if OF
 232         select CLKSRC_MMIO
 233         help
 234           This options enables support for the ARMv7M system timer unit
 235
 236 config ATMEL_PIT
 237         select CLKSRC_OF if OF
 238         def_bool SOC_AT91SAM9 || SOC_SAMA5
 239
 240 config ATMEL_ST
 241         bool
 242         select CLKSRC_OF
 243         select MFD_SYSCON
 244
 245 config CLKSRC_METAG_GENERIC
 246         def_bool y if METAG
 247         help
 248           This option enables support for the Meta per-thread timers.
 249
 250 config CLKSRC_EXYNOS_MCT
 251         bool "Exynos multi core timer driver" if COMPILE_TEST
 252         depends on ARM
 253         help
 254           Support for Multi Core Timer controller on Exynos SoCs.
 255
 256 config CLKSRC_SAMSUNG_PWM
 257         bool "PWM timer drvier for Samsung S3C, S5P" if COMPILE_TEST
 258         depends on GENERIC_CLOCKEVENTS
 259         depends on HAS_IOMEM
 260         help
 261           This is a new clocksource driver for the PWM timer found in
 262           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
 263           for all devicetree enabled platforms. This driver will be
 264           needed only on systems that do not have the Exynos MCT available.
 265
 266 config FSL_FTM_TIMER
 267         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
 268         depends on GENERIC_CLOCKEVENTS
 269         depends on HAS_IOMEM
 270         select CLKSRC_MMIO
 271         help
 272           Support for Freescale FlexTimer Module (FTM) timer.
 273
 274 config VF_PIT_TIMER
 275         bool
 276         select CLKSRC_MMIO
 277         help
 278           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
 279
 280 config SYS_SUPPORTS_SH_CMT
 281         bool
 282
 283 config MTK_TIMER
 284         bool "Mediatek timer driver" if COMPILE_TEST
 285         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 286         select CLKSRC_OF
 287         select CLKSRC_MMIO
 288         help
 289           Support for Mediatek timer driver.
 290
 291 config SYS_SUPPORTS_SH_MTU2
 292         bool
 293
 294 config SYS_SUPPORTS_SH_TMU
 295         bool
 296
 297 config SYS_SUPPORTS_EM_STI
 298         bool
 299
 300 config SH_TIMER_CMT
 301         bool "Renesas CMT timer driver" if COMPILE_TEST
 302         depends on GENERIC_CLOCKEVENTS
 303         depends on HAS_IOMEM
 304         default SYS_SUPPORTS_SH_CMT
 305         help
 306           This enables build of a clocksource and clockevent driver for
 307           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
 308           variants on a wide range of Mobile and Automotive SoCs from Renesas.
 309
 310 config SH_TIMER_MTU2
 311         bool "Renesas MTU2 timer driver" if COMPILE_TEST
 312         depends on GENERIC_CLOCKEVENTS
 313         depends on HAS_IOMEM
 314         default SYS_SUPPORTS_SH_MTU2
 315         help
 316           This enables build of a clockevent driver for the Multi-Function
 317           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
 318           This hardware comes with 16 bit-timer registers.
 319
 320 config SH_TIMER_TMU
 321         bool "Renesas TMU timer driver" if COMPILE_TEST
 322         depends on GENERIC_CLOCKEVENTS
 323         depends on HAS_IOMEM
 324         default SYS_SUPPORTS_SH_TMU
 325         help
 326           This enables build of a clocksource and clockevent driver for
 327           the 32-bit Timer Unit (TMU) hardware available on a wide range
 328           SoCs from Renesas.
 329
 330 config EM_TIMER_STI
 331         bool "Renesas STI timer driver" if COMPILE_TEST
 332         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 333         default SYS_SUPPORTS_EM_STI
 334         help
 335           This enables build of a clocksource and clockevent driver for
 336           the 48-bit System Timer (STI) hardware available on a SoCs
 337           such as EMEV2 from former NEC Electronics.
 338
 339 config CLKSRC_QCOM
 340         bool "Qualcomm MSM timer" if COMPILE_TEST
 341         depends on ARM
 342         select CLKSRC_OF
 343         help
 344           This enables the clocksource and the per CPU clockevent driver for the
 345           Qualcomm SoCs.
 346
 347 config CLKSRC_VERSATILE
 348         bool "ARM Versatile (Express) reference platforms clock source"
 349         depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
 350         select CLKSRC_OF
 351         default y if MFD_VEXPRESS_SYSREG
 352         help
 353           This option enables clock source based on free running
 354           counter available in the "System Registers" block of
 355           ARM Versatile, RealView and Versatile Express reference
 356           platforms.
 357
 358 config CLKSRC_MIPS_GIC
 359         bool
 360         depends on MIPS_GIC
 361         select CLKSRC_OF
 362
 363 config CLKSRC_TANGO_XTAL
 364         bool "Clocksource for Tango SoC" if COMPILE_TEST
 365         depends on ARM
 366         select CLKSRC_OF
 367         select CLKSRC_MMIO
 368         help
 369           This enables the clocksource for Tango SoC
 370
 371 config CLKSRC_PXA
 372         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
 373         depends on GENERIC_CLOCKEVENTS
 374         depends on HAS_IOMEM
 375         select CLKSRC_MMIO
 376         help
 377           This enables OST0 support available on PXA and SA-11x0
 378           platforms.
 379
 380 config H8300_TMR8
 381         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
 382         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 383         help
 384           This enables the 8 bits timer for the H8300 platform.
 385
 386 config H8300_TMR16
 387         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
 388         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 389         help
 390           This enables the 16 bits timer for the H8300 platform with the
 391           H83069 cpu.
 392
 393 config H8300_TPU
 394         bool "Clocksource for the H8300 platform" if COMPILE_TEST
 395         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 396         help
 397           This enables the clocksource for the H8300 platform with the
 398           H8S2678 cpu.
 399
 400 config CLKSRC_IMX_GPT
 401         bool "Clocksource using i.MX GPT" if COMPILE_TEST
 402         depends on ARM && CLKDEV_LOOKUP
 403         select CLKSRC_MMIO
 404
 405 config CLKSRC_ST_LPC
 406         bool "Low power clocksource found in the LPC" if COMPILE_TEST
 407         select CLKSRC_OF if OF
 408         depends on HAS_IOMEM
 409         select CLKSRC_MMIO
 410         help
 411           Enable this option to use the Low Power controller timer
 412           as clocksource.
 413
 414 endmenu