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