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Linux/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 KEYSTONE_TIMER
210         bool "Keystone timer driver" if COMPILE_TEST
211         depends on GENERIC_CLOCKEVENTS
212         depends on ARM || ARM64
213         select CLKSRC_MMIO
214         help
215           Enables support for the Keystone timer.
216 
217 config INTEGRATOR_AP_TIMER
218         bool "Integrator-ap timer driver" if COMPILE_TEST
219         depends on GENERIC_CLOCKEVENTS
220         select CLKSRC_MMIO
221         help
222           Enables support for the Integrator-ap timer.
223 
224 config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
225         bool "Clocksource PRCMU Timer sched_clock"
226         depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
227         default y
228         help
229           Use the always on PRCMU Timer as sched_clock
230 
231 config CLKSRC_EFM32
232         bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
233         depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
234         select CLKSRC_MMIO
235         default ARCH_EFM32
236         help
237           Support to use the timers of EFM32 SoCs as clock source and clock
238           event device.
239 
240 config CLKSRC_LPC32XX
241         bool "Clocksource for LPC32XX" if COMPILE_TEST
242         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
243         depends on ARM
244         select CLKSRC_MMIO
245         select CLKSRC_OF
246         help
247           Support for the LPC32XX clocksource.
248 
249 config CLKSRC_PISTACHIO
250         bool "Clocksource for Pistachio SoC" if COMPILE_TEST
251         depends on HAS_IOMEM
252         select CLKSRC_OF
253         help
254           Enables the clocksource for the Pistachio SoC.
255 
256 config CLKSRC_TI_32K
257         bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
258         depends on GENERIC_SCHED_CLOCK
259         select CLKSRC_OF if OF
260         help
261           This option enables support for Texas Instruments 32.768 Hz clocksource
262           available on many OMAP-like platforms.
263 
264 config CLKSRC_NPS
265         bool "NPS400 clocksource driver" if COMPILE_TEST
266         depends on !PHYS_ADDR_T_64BIT
267         select CLKSRC_MMIO
268         select CLKSRC_OF if OF
269         help
270           NPS400 clocksource support.
271           Got 64 bit counter with update rate up to 1000MHz.
272           This counter is accessed via couple of 32 bit memory mapped registers.
273 
274 config CLKSRC_STM32
275         bool "Clocksource for STM32 SoCs" if !ARCH_STM32
276         depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
277         select CLKSRC_MMIO
278 
279 config CLKSRC_MPS2
280         bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
281         depends on GENERIC_SCHED_CLOCK
282         select CLKSRC_MMIO
283         select CLKSRC_OF
284 
285 config ARM_ARCH_TIMER
286         bool
287         select CLKSRC_OF if OF
288         select CLKSRC_ACPI if ACPI
289 
290 config ARM_ARCH_TIMER_EVTSTREAM
291         bool "Enable ARM architected timer event stream generation by default"
292         default y if ARM_ARCH_TIMER
293         depends on ARM_ARCH_TIMER
294         help
295           This option enables support by default for event stream generation
296           based on the ARM architected timer. It is used for waking up CPUs
297           executing the wfe instruction at a frequency represented as a
298           power-of-2 divisor of the clock rate. The behaviour can also be
299           overridden on the command line using the
300           clocksource.arm_arch_timer.evtstream parameter.
301           The main use of the event stream is wfe-based timeouts of userspace
302           locking implementations. It might also be useful for imposing timeout
303           on wfe to safeguard against any programming errors in case an expected
304           event is not generated.
305           This must be disabled for hardware validation purposes to detect any
306           hardware anomalies of missing events.
307 
308 config ARM_GLOBAL_TIMER
309         bool "Support for the ARM global timer" if COMPILE_TEST
310         select CLKSRC_OF if OF
311         depends on ARM
312         help
313           This options enables support for the ARM global timer unit
314 
315 config ARM_TIMER_SP804
316         bool "Support for Dual Timer SP804 module"
317         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
318         select CLKSRC_MMIO
319         select CLKSRC_OF if OF
320 
321 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
322         bool
323         depends on ARM_GLOBAL_TIMER
324         default y
325         help
326          Use ARM global timer clock source as sched_clock
327 
328 config ARMV7M_SYSTICK
329         bool "Support for the ARMv7M system time" if COMPILE_TEST
330         select CLKSRC_OF if OF
331         select CLKSRC_MMIO
332         help
333           This options enables support for the ARMv7M system timer unit
334 
335 config ATMEL_PIT
336         select CLKSRC_OF if OF
337         def_bool SOC_AT91SAM9 || SOC_SAMA5
338 
339 config ATMEL_ST
340         bool "Atmel ST timer support" if COMPILE_TEST
341         depends on GENERIC_CLOCKEVENTS
342         select CLKSRC_OF
343         select MFD_SYSCON
344         help
345           Support for the Atmel ST timer.
346 
347 config CLKSRC_METAG_GENERIC
348         def_bool y if METAG
349         help
350           This option enables support for the Meta per-thread timers.
351 
352 config CLKSRC_EXYNOS_MCT
353         bool "Exynos multi core timer driver" if COMPILE_TEST
354         depends on ARM
355         help
356           Support for Multi Core Timer controller on Exynos SoCs.
357 
358 config CLKSRC_SAMSUNG_PWM
359         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
360         depends on GENERIC_CLOCKEVENTS
361         depends on HAS_IOMEM
362         help
363           This is a new clocksource driver for the PWM timer found in
364           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
365           for all devicetree enabled platforms. This driver will be
366           needed only on systems that do not have the Exynos MCT available.
367 
368 config FSL_FTM_TIMER
369         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
370         depends on GENERIC_CLOCKEVENTS
371         depends on HAS_IOMEM
372         select CLKSRC_MMIO
373         help
374           Support for Freescale FlexTimer Module (FTM) timer.
375 
376 config VF_PIT_TIMER
377         bool
378         select CLKSRC_MMIO
379         help
380           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
381 
382 config OXNAS_RPS_TIMER
383         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
384         depends on GENERIC_CLOCKEVENTS
385         select CLKSRC_OF
386         select CLKSRC_MMIO
387         help
388           This enables support for the Oxford Semiconductor OXNAS RPS timers.
389 
390 config SYS_SUPPORTS_SH_CMT
391         bool
392 
393 config MTK_TIMER
394         bool "Mediatek timer driver" if COMPILE_TEST
395         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
396         select CLKSRC_OF
397         select CLKSRC_MMIO
398         help
399           Support for Mediatek timer driver.
400 
401 config SYS_SUPPORTS_SH_MTU2
402         bool
403 
404 config SYS_SUPPORTS_SH_TMU
405         bool
406 
407 config SYS_SUPPORTS_EM_STI
408         bool
409 
410 config SH_TIMER_CMT
411         bool "Renesas CMT timer driver" if COMPILE_TEST
412         depends on GENERIC_CLOCKEVENTS
413         depends on HAS_IOMEM
414         default SYS_SUPPORTS_SH_CMT
415         help
416           This enables build of a clocksource and clockevent driver for
417           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
418           variants on a wide range of Mobile and Automotive SoCs from Renesas.
419 
420 config SH_TIMER_MTU2
421         bool "Renesas MTU2 timer driver" if COMPILE_TEST
422         depends on GENERIC_CLOCKEVENTS
423         depends on HAS_IOMEM
424         default SYS_SUPPORTS_SH_MTU2
425         help
426           This enables build of a clockevent driver for the Multi-Function
427           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
428           This hardware comes with 16 bit-timer registers.
429 
430 config SH_TIMER_TMU
431         bool "Renesas TMU timer driver" if COMPILE_TEST
432         depends on GENERIC_CLOCKEVENTS
433         depends on HAS_IOMEM
434         default SYS_SUPPORTS_SH_TMU
435         help
436           This enables build of a clocksource and clockevent driver for
437           the 32-bit Timer Unit (TMU) hardware available on a wide range
438           SoCs from Renesas.
439 
440 config EM_TIMER_STI
441         bool "Renesas STI timer driver" if COMPILE_TEST
442         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
443         default SYS_SUPPORTS_EM_STI
444         help
445           This enables build of a clocksource and clockevent driver for
446           the 48-bit System Timer (STI) hardware available on a SoCs
447           such as EMEV2 from former NEC Electronics.
448 
449 config CLKSRC_QCOM
450         bool "Qualcomm MSM timer" if COMPILE_TEST
451         depends on ARM
452         select CLKSRC_OF
453         help
454           This enables the clocksource and the per CPU clockevent driver for the
455           Qualcomm SoCs.
456 
457 config CLKSRC_VERSATILE
458         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
459         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
460         select CLKSRC_OF
461         default y if MFD_VEXPRESS_SYSREG
462         help
463           This option enables clock source based on free running
464           counter available in the "System Registers" block of
465           ARM Versatile, RealView and Versatile Express reference
466           platforms.
467 
468 config CLKSRC_MIPS_GIC
469         bool
470         depends on MIPS_GIC
471         select CLKSRC_OF
472 
473 config CLKSRC_TANGO_XTAL
474         bool "Clocksource for Tango SoC" if COMPILE_TEST
475         depends on ARM
476         select CLKSRC_OF
477         select CLKSRC_MMIO
478         help
479           This enables the clocksource for Tango SoC
480 
481 config CLKSRC_PXA
482         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
483         depends on GENERIC_CLOCKEVENTS
484         depends on HAS_IOMEM
485         select CLKSRC_MMIO
486         help
487           This enables OST0 support available on PXA and SA-11x0
488           platforms.
489 
490 config H8300_TMR8
491         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
492         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
493         help
494           This enables the 8 bits timer for the H8300 platform.
495 
496 config H8300_TMR16
497         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
498         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
499         help
500           This enables the 16 bits timer for the H8300 platform with the
501           H83069 cpu.
502 
503 config H8300_TPU
504         bool "Clocksource for the H8300 platform" if COMPILE_TEST
505         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
506         help
507           This enables the clocksource for the H8300 platform with the
508           H8S2678 cpu.
509 
510 config CLKSRC_IMX_GPT
511         bool "Clocksource using i.MX GPT" if COMPILE_TEST
512         depends on ARM && CLKDEV_LOOKUP
513         select CLKSRC_MMIO
514 
515 config CLKSRC_ST_LPC
516         bool "Low power clocksource found in the LPC" if COMPILE_TEST
517         select CLKSRC_OF if OF
518         depends on HAS_IOMEM
519         select CLKSRC_MMIO
520         help
521           Enable this option to use the Low Power controller timer
522           as clocksource.
523 
524 endmenu

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