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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 FSL_ERRATUM_A008585
309         bool "Workaround for Freescale/NXP Erratum A-008585"
310         default y
311         depends on ARM_ARCH_TIMER && ARM64
312         help
313           This option enables a workaround for Freescale/NXP Erratum
314           A-008585 ("ARM generic timer may contain an erroneous
315           value").  The workaround will only be active if the
316           fsl,erratum-a008585 property is found in the timer node.
317 
318 config ARM_GLOBAL_TIMER
319         bool "Support for the ARM global timer" if COMPILE_TEST
320         select CLKSRC_OF if OF
321         depends on ARM
322         help
323           This options enables support for the ARM global timer unit
324 
325 config ARM_TIMER_SP804
326         bool "Support for Dual Timer SP804 module"
327         depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
328         select CLKSRC_MMIO
329         select CLKSRC_OF if OF
330 
331 config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
332         bool
333         depends on ARM_GLOBAL_TIMER
334         default y
335         help
336          Use ARM global timer clock source as sched_clock
337 
338 config ARMV7M_SYSTICK
339         bool "Support for the ARMv7M system time" if COMPILE_TEST
340         select CLKSRC_OF if OF
341         select CLKSRC_MMIO
342         help
343           This options enables support for the ARMv7M system timer unit
344 
345 config ATMEL_PIT
346         select CLKSRC_OF if OF
347         def_bool SOC_AT91SAM9 || SOC_SAMA5
348 
349 config ATMEL_ST
350         bool "Atmel ST timer support" if COMPILE_TEST
351         depends on GENERIC_CLOCKEVENTS
352         select CLKSRC_OF
353         select MFD_SYSCON
354         help
355           Support for the Atmel ST timer.
356 
357 config CLKSRC_METAG_GENERIC
358         def_bool y if METAG
359         help
360           This option enables support for the Meta per-thread timers.
361 
362 config CLKSRC_EXYNOS_MCT
363         bool "Exynos multi core timer driver" if COMPILE_TEST
364         depends on ARM || ARM64
365         help
366           Support for Multi Core Timer controller on Exynos SoCs.
367 
368 config CLKSRC_SAMSUNG_PWM
369         bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
370         depends on GENERIC_CLOCKEVENTS
371         depends on HAS_IOMEM
372         help
373           This is a new clocksource driver for the PWM timer found in
374           Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
375           for all devicetree enabled platforms. This driver will be
376           needed only on systems that do not have the Exynos MCT available.
377 
378 config FSL_FTM_TIMER
379         bool "Freescale FlexTimer Module driver" if COMPILE_TEST
380         depends on GENERIC_CLOCKEVENTS
381         depends on HAS_IOMEM
382         select CLKSRC_MMIO
383         help
384           Support for Freescale FlexTimer Module (FTM) timer.
385 
386 config VF_PIT_TIMER
387         bool
388         select CLKSRC_MMIO
389         help
390           Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
391 
392 config OXNAS_RPS_TIMER
393         bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
394         depends on GENERIC_CLOCKEVENTS
395         select CLKSRC_OF
396         select CLKSRC_MMIO
397         help
398           This enables support for the Oxford Semiconductor OXNAS RPS timers.
399 
400 config SYS_SUPPORTS_SH_CMT
401         bool
402 
403 config MTK_TIMER
404         bool "Mediatek timer driver" if COMPILE_TEST
405         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
406         select CLKSRC_OF
407         select CLKSRC_MMIO
408         help
409           Support for Mediatek timer driver.
410 
411 config SYS_SUPPORTS_SH_MTU2
412         bool
413 
414 config SYS_SUPPORTS_SH_TMU
415         bool
416 
417 config SYS_SUPPORTS_EM_STI
418         bool
419 
420 config CLKSRC_JCORE_PIT
421         bool "J-Core PIT timer driver" if COMPILE_TEST
422         depends on OF
423         depends on GENERIC_CLOCKEVENTS
424         depends on HAS_IOMEM
425         select CLKSRC_MMIO
426         help
427           This enables build of clocksource and clockevent driver for
428           the integrated PIT in the J-Core synthesizable, open source SoC.
429 
430 config SH_TIMER_CMT
431         bool "Renesas CMT timer driver" if COMPILE_TEST
432         depends on GENERIC_CLOCKEVENTS
433         depends on HAS_IOMEM
434         default SYS_SUPPORTS_SH_CMT
435         help
436           This enables build of a clocksource and clockevent driver for
437           the Compare Match Timer (CMT) hardware available in 16/32/48-bit
438           variants on a wide range of Mobile and Automotive SoCs from Renesas.
439 
440 config SH_TIMER_MTU2
441         bool "Renesas MTU2 timer driver" if COMPILE_TEST
442         depends on GENERIC_CLOCKEVENTS
443         depends on HAS_IOMEM
444         default SYS_SUPPORTS_SH_MTU2
445         help
446           This enables build of a clockevent driver for the Multi-Function
447           Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
448           This hardware comes with 16 bit-timer registers.
449 
450 config SH_TIMER_TMU
451         bool "Renesas TMU timer driver" if COMPILE_TEST
452         depends on GENERIC_CLOCKEVENTS
453         depends on HAS_IOMEM
454         default SYS_SUPPORTS_SH_TMU
455         help
456           This enables build of a clocksource and clockevent driver for
457           the 32-bit Timer Unit (TMU) hardware available on a wide range
458           SoCs from Renesas.
459 
460 config EM_TIMER_STI
461         bool "Renesas STI timer driver" if COMPILE_TEST
462         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
463         default SYS_SUPPORTS_EM_STI
464         help
465           This enables build of a clocksource and clockevent driver for
466           the 48-bit System Timer (STI) hardware available on a SoCs
467           such as EMEV2 from former NEC Electronics.
468 
469 config CLKSRC_QCOM
470         bool "Qualcomm MSM timer" if COMPILE_TEST
471         depends on ARM
472         select CLKSRC_OF
473         help
474           This enables the clocksource and the per CPU clockevent driver for the
475           Qualcomm SoCs.
476 
477 config CLKSRC_VERSATILE
478         bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
479         depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
480         select CLKSRC_OF
481         default y if MFD_VEXPRESS_SYSREG
482         help
483           This option enables clock source based on free running
484           counter available in the "System Registers" block of
485           ARM Versatile, RealView and Versatile Express reference
486           platforms.
487 
488 config CLKSRC_MIPS_GIC
489         bool
490         depends on MIPS_GIC
491         select CLKSRC_OF
492 
493 config CLKSRC_TANGO_XTAL
494         bool "Clocksource for Tango SoC" if COMPILE_TEST
495         depends on ARM
496         select CLKSRC_OF
497         select CLKSRC_MMIO
498         help
499           This enables the clocksource for Tango SoC
500 
501 config CLKSRC_PXA
502         bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
503         depends on GENERIC_CLOCKEVENTS
504         depends on HAS_IOMEM
505         select CLKSRC_MMIO
506         help
507           This enables OST0 support available on PXA and SA-11x0
508           platforms.
509 
510 config H8300_TMR8
511         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
512         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
513         help
514           This enables the 8 bits timer for the H8300 platform.
515 
516 config H8300_TMR16
517         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
518         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
519         help
520           This enables the 16 bits timer for the H8300 platform with the
521           H83069 cpu.
522 
523 config H8300_TPU
524         bool "Clocksource for the H8300 platform" if COMPILE_TEST
525         depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
526         help
527           This enables the clocksource for the H8300 platform with the
528           H8S2678 cpu.
529 
530 config CLKSRC_IMX_GPT
531         bool "Clocksource using i.MX GPT" if COMPILE_TEST
532         depends on ARM && CLKDEV_LOOKUP
533         select CLKSRC_MMIO
534 
535 config CLKSRC_ST_LPC
536         bool "Low power clocksource found in the LPC" if COMPILE_TEST
537         select CLKSRC_OF if OF
538         depends on HAS_IOMEM
539         select CLKSRC_MMIO
540         help
541           Enable this option to use the Low Power controller timer
542           as clocksource.
543 
544 endmenu

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