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1# SPDX-License-Identifier: GPL-2.0-only
2menu "Clock Source drivers"
3 depends on GENERIC_CLOCKEVENTS
4
5config TIMER_OF
6 bool
7 select TIMER_PROBE
8
9config TIMER_ACPI
10 bool
11 select TIMER_PROBE
12
13config TIMER_PROBE
14 bool
15
16config CLKSRC_I8253
17 bool
18
19config CLKEVT_I8253
20 bool
21
22config I8253_LOCK
23 bool
24
25config OMAP_DM_TIMER
26 bool
27
28config CLKBLD_I8253
29 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
30
31config CLKSRC_MMIO
32 bool
33
34config BCM2835_TIMER
35 bool "BCM2835 timer driver" if COMPILE_TEST
36 select CLKSRC_MMIO
37 help
38 Enables the support for the BCM2835 timer driver.
39
40config BCM_KONA_TIMER
41 bool "BCM mobile timer driver" if COMPILE_TEST
42 select CLKSRC_MMIO
43 help
44 Enables the support for the BCM Kona mobile timer driver.
45
46config DAVINCI_TIMER
47 bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST
48 help
49 Enables the support for the TI DaVinci timer driver.
50
51config DIGICOLOR_TIMER
52 bool "Digicolor timer driver" if COMPILE_TEST
53 select CLKSRC_MMIO
54 depends on HAS_IOMEM
55 help
56 Enables the support for the digicolor timer driver.
57
58config DW_APB_TIMER
59 bool "DW APB timer driver" if COMPILE_TEST
60 help
61 Enables the support for the dw_apb timer.
62
63config DW_APB_TIMER_OF
64 bool
65 select DW_APB_TIMER
66 select TIMER_OF
67
68config FTTMR010_TIMER
69 bool "Faraday Technology timer driver" if COMPILE_TEST
70 depends on HAS_IOMEM
71 select CLKSRC_MMIO
72 select TIMER_OF
73 select MFD_SYSCON
74 help
75 Enables support for the Faraday Technology timer block
76 FTTMR010.
77
78config IXP4XX_TIMER
79 bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST
80 depends on HAS_IOMEM
81 select CLKSRC_MMIO
82 help
83 Enables support for the Intel XScale IXP4xx SoC timer.
84
85config ROCKCHIP_TIMER
86 bool "Rockchip timer driver" if COMPILE_TEST
87 depends on ARM || ARM64
88 select TIMER_OF
89 select CLKSRC_MMIO
90 help
91 Enables the support for the Rockchip timer driver.
92
93config ARMADA_370_XP_TIMER
94 bool "Armada 370 and XP timer driver" if COMPILE_TEST
95 depends on ARM
96 select TIMER_OF
97 select CLKSRC_MMIO
98 help
99 Enables the support for the Armada 370 and XP timer driver.
100
101config MESON6_TIMER
102 bool "Meson6 timer driver" if COMPILE_TEST
103 select CLKSRC_MMIO
104 help
105 Enables the support for the Meson6 timer driver.
106
107config ORION_TIMER
108 bool "Orion timer driver" if COMPILE_TEST
109 depends on ARM
110 select TIMER_OF
111 select CLKSRC_MMIO
112 help
113 Enables the support for the Orion timer driver
114
115config OWL_TIMER
116 bool "Owl timer driver" if COMPILE_TEST
117 select CLKSRC_MMIO
118 help
119 Enables the support for the Actions Semi Owl timer driver.
120
121config RDA_TIMER
122 bool "RDA timer driver" if COMPILE_TEST
123 select CLKSRC_MMIO
124 select TIMER_OF
125 help
126 Enables the support for the RDA Micro timer driver.
127
128config SUN4I_TIMER
129 bool "Sun4i timer driver" if COMPILE_TEST
130 depends on HAS_IOMEM
131 select CLKSRC_MMIO
132 select TIMER_OF
133 help
134 Enables support for the Sun4i timer.
135
136config SUN5I_HSTIMER
137 bool "Sun5i timer driver" if COMPILE_TEST
138 select CLKSRC_MMIO
139 depends on COMMON_CLK
140 help
141 Enables support the Sun5i timer.
142
143config TEGRA_TIMER
144 bool "Tegra timer driver" if COMPILE_TEST
145 select CLKSRC_MMIO
146 select TIMER_OF
147 depends on ARCH_TEGRA || COMPILE_TEST
148 help
149 Enables support for the Tegra driver.
150
151config VT8500_TIMER
152 bool "VT8500 timer driver" if COMPILE_TEST
153 depends on HAS_IOMEM
154 help
155 Enables support for the VT8500 driver.
156
157config NPCM7XX_TIMER
158 bool "NPCM7xx timer driver" if COMPILE_TEST
159 depends on HAS_IOMEM
160 select TIMER_OF
161 select CLKSRC_MMIO
162 help
163 Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
164 where TIMER0 serves as clockevent and TIMER1 serves as clocksource.
165
166config CADENCE_TTC_TIMER
167 bool "Cadence TTC timer driver" if COMPILE_TEST
168 depends on COMMON_CLK
169 help
170 Enables support for the Cadence TTC driver.
171
172config ASM9260_TIMER
173 bool "ASM9260 timer driver" if COMPILE_TEST
174 select CLKSRC_MMIO
175 select TIMER_OF
176 help
177 Enables support for the ASM9260 timer.
178
179config CLKSRC_NOMADIK_MTU
180 bool "Nomakdik clocksource driver" if COMPILE_TEST
181 depends on ARM
182 select CLKSRC_MMIO
183 help
184 Support for Multi Timer Unit. MTU provides access
185 to multiple interrupt generating programmable
186 32-bit free running decrementing counters.
187
188config CLKSRC_DBX500_PRCMU
189 bool "Clocksource PRCMU Timer" if COMPILE_TEST
190 depends on HAS_IOMEM
191 help
192 Use the always on PRCMU Timer as clocksource.
193
194config CLPS711X_TIMER
195 bool "Cirrus Logic timer driver" if COMPILE_TEST
196 select CLKSRC_MMIO
197 help
198 Enables support for the Cirrus Logic PS711 timer.
199
200config ATLAS7_TIMER
201 bool "Atlas7 timer driver" if COMPILE_TEST
202 select CLKSRC_MMIO
203 help
204 Enables support for the Atlas7 timer.
205
206config MXS_TIMER
207 bool "MXS timer driver" if COMPILE_TEST
208 select CLKSRC_MMIO
209 select STMP_DEVICE
210 help
211 Enables support for the MXS timer.
212
213config PRIMA2_TIMER
214 bool "Prima2 timer driver" if COMPILE_TEST
215 select CLKSRC_MMIO
216 help
217 Enables support for the Prima2 timer.
218
219config U300_TIMER
220 bool "U300 timer driver" if COMPILE_TEST
221 depends on ARM
222 select CLKSRC_MMIO
223 help
224 Enables support for the U300 timer.
225
226config NSPIRE_TIMER
227 bool "NSpire timer driver" if COMPILE_TEST
228 select CLKSRC_MMIO
229 help
230 Enables support for the Nspire timer.
231
232config KEYSTONE_TIMER
233 bool "Keystone timer driver" if COMPILE_TEST
234 depends on ARM || ARM64
235 select CLKSRC_MMIO
236 help
237 Enables support for the Keystone timer.
238
239config INTEGRATOR_AP_TIMER
240 bool "Integrator-AP timer driver" if COMPILE_TEST
241 select CLKSRC_MMIO
242 help
243 Enables support for the Integrator-AP timer.
244
245config CLKSRC_EFM32
246 bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
247 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
248 select CLKSRC_MMIO
249 default ARCH_EFM32
250 help
251 Support to use the timers of EFM32 SoCs as clock source and clock
252 event device.
253
254config CLKSRC_LPC32XX
255 bool "Clocksource for LPC32XX" if COMPILE_TEST
256 depends on HAS_IOMEM
257 depends on ARM
258 select CLKSRC_MMIO
259 select TIMER_OF
260 help
261 Support for the LPC32XX clocksource.
262
263config CLKSRC_PISTACHIO
264 bool "Clocksource for Pistachio SoC" if COMPILE_TEST
265 depends on HAS_IOMEM
266 select TIMER_OF
267 help
268 Enables the clocksource for the Pistachio SoC.
269
270config CLKSRC_TI_32K
271 bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
272 depends on GENERIC_SCHED_CLOCK
273 select TIMER_OF if OF
274 help
275 This option enables support for Texas Instruments 32.768 Hz clocksource
276 available on many OMAP-like platforms.
277
278config CLKSRC_NPS
279 bool "NPS400 clocksource driver" if COMPILE_TEST
280 depends on !PHYS_ADDR_T_64BIT
281 select CLKSRC_MMIO
282 select TIMER_OF if OF
283 help
284 NPS400 clocksource support.
285 It has a 64-bit counter with update rate up to 1000MHz.
286 This counter is accessed via couple of 32-bit memory-mapped registers.
287
288config CLKSRC_STM32
289 bool "Clocksource for STM32 SoCs" if !ARCH_STM32
290 depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
291 select CLKSRC_MMIO
292 select TIMER_OF
293
294config CLKSRC_STM32_LP
295 bool "Low power clocksource for STM32 SoCs"
296 depends on MFD_STM32_LPTIMER || COMPILE_TEST
297
298config CLKSRC_MPS2
299 bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
300 depends on GENERIC_SCHED_CLOCK
301 select CLKSRC_MMIO
302 select TIMER_OF
303
304config ARC_TIMERS
305 bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
306 depends on GENERIC_SCHED_CLOCK
307 select TIMER_OF
308 help
309 These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
310 (ARC700 as well as ARC HS38).
311 TIMER0 serves as clockevent while TIMER1 provides clocksource.
312
313config ARC_TIMERS_64BIT
314 bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
315 depends on ARC_TIMERS
316 select TIMER_OF
317 help
318 This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP).
319 RTC is implemented inside the core, while GFRC sits outside the core in
320 ARConnect IP block. Driver automatically picks one of them for clocksource
321 as appropriate.
322
323config ARM_ARCH_TIMER
324 bool
325 select TIMER_OF if OF
326 select TIMER_ACPI if ACPI
327
328config ARM_ARCH_TIMER_EVTSTREAM
329 bool "Enable ARM architected timer event stream generation by default"
330 default y if ARM_ARCH_TIMER
331 depends on ARM_ARCH_TIMER
332 help
333 This option enables support by default for event stream generation
334 based on the ARM architected timer. It is used for waking up CPUs
335 executing the wfe instruction at a frequency represented as a
336 power-of-2 divisor of the clock rate. The behaviour can also be
337 overridden on the command line using the
338 clocksource.arm_arch_timer.evtstream parameter.
339 The main use of the event stream is wfe-based timeouts of userspace
340 locking implementations. It might also be useful for imposing timeout
341 on wfe to safeguard against any programming errors in case an expected
342 event is not generated.
343 This must be disabled for hardware validation purposes to detect any
344 hardware anomalies of missing events.
345
346config ARM_ARCH_TIMER_OOL_WORKAROUND
347 bool
348
349config FSL_ERRATUM_A008585
350 bool "Workaround for Freescale/NXP Erratum A-008585"
351 default y
352 depends on ARM_ARCH_TIMER && ARM64
353 select ARM_ARCH_TIMER_OOL_WORKAROUND
354 help
355 This option enables a workaround for Freescale/NXP Erratum
356 A-008585 ("ARM generic timer may contain an erroneous
357 value"). The workaround will only be active if the
358 fsl,erratum-a008585 property is found in the timer node.
359
360config HISILICON_ERRATUM_161010101
361 bool "Workaround for Hisilicon Erratum 161010101"
362 default y
363 select ARM_ARCH_TIMER_OOL_WORKAROUND
364 depends on ARM_ARCH_TIMER && ARM64
365 help
366 This option enables a workaround for Hisilicon Erratum
367 161010101. The workaround will be active if the hisilicon,erratum-161010101
368 property is found in the timer node.
369
370config ARM64_ERRATUM_858921
371 bool "Workaround for Cortex-A73 erratum 858921"
372 default y
373 select ARM_ARCH_TIMER_OOL_WORKAROUND
374 depends on ARM_ARCH_TIMER && ARM64
375 help
376 This option enables a workaround applicable to Cortex-A73
377 (all versions), whose counter may return incorrect values.
378 The workaround will be dynamically enabled when an affected
379 core is detected.
380
381config SUN50I_ERRATUM_UNKNOWN1
382 bool "Workaround for Allwinner A64 erratum UNKNOWN1"
383 default y
384 depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI
385 select ARM_ARCH_TIMER_OOL_WORKAROUND
386 help
387 This option enables a workaround for instability in the timer on
388 the Allwinner A64 SoC. The workaround will only be active if the
389 allwinner,erratum-unknown1 property is found in the timer node.
390
391config ARM_GLOBAL_TIMER
392 bool "Support for the ARM global timer" if COMPILE_TEST
393 select TIMER_OF if OF
394 depends on ARM
395 help
396 This option enables support for the ARM global timer unit.
397
398config ARM_TIMER_SP804
399 bool "Support for Dual Timer SP804 module" if COMPILE_TEST
400 depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
401 select CLKSRC_MMIO
402 select TIMER_OF if OF
403
404config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
405 bool
406 depends on ARM_GLOBAL_TIMER
407 default y
408 help
409 Use ARM global timer clock source as sched_clock.
410
411config ARMV7M_SYSTICK
412 bool "Support for the ARMv7M system time" if COMPILE_TEST
413 select TIMER_OF if OF
414 select CLKSRC_MMIO
415 help
416 This option enables support for the ARMv7M system timer unit.
417
418config ATMEL_PIT
419 bool "Atmel PIT support" if COMPILE_TEST
420 depends on HAS_IOMEM
421 select TIMER_OF if OF
422 help
423 Support for the Periodic Interval Timer found on Atmel SoCs.
424
425config ATMEL_ST
426 bool "Atmel ST timer support" if COMPILE_TEST
427 depends on HAS_IOMEM
428 select TIMER_OF
429 select MFD_SYSCON
430 help
431 Support for the Atmel ST timer.
432
433config ATMEL_TCB_CLKSRC
434 bool "Atmel TC Block timer driver" if COMPILE_TEST
435 depends on ARM && HAS_IOMEM
436 select TIMER_OF if OF
437 help
438 Support for Timer Counter Blocks on Atmel SoCs.
439
440config CLKSRC_EXYNOS_MCT
441 bool "Exynos multi core timer driver" if COMPILE_TEST
442 depends on ARM || ARM64
443 help
444 Support for Multi Core Timer controller on Exynos SoCs.
445
446config CLKSRC_SAMSUNG_PWM
447 bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
448 depends on HAS_IOMEM
449 help
450 This is a new clocksource driver for the PWM timer found in
451 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
452 for all devicetree enabled platforms. This driver will be
453 needed only on systems that do not have the Exynos MCT available.
454
455config FSL_FTM_TIMER
456 bool "Freescale FlexTimer Module driver" if COMPILE_TEST
457 depends on HAS_IOMEM
458 select CLKSRC_MMIO
459 help
460 Support for Freescale FlexTimer Module (FTM) timer.
461
462config VF_PIT_TIMER
463 bool
464 select CLKSRC_MMIO
465 help
466 Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs.
467
468config OXNAS_RPS_TIMER
469 bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
470 select TIMER_OF
471 select CLKSRC_MMIO
472 help
473 This enables support for the Oxford Semiconductor OXNAS RPS timers.
474
475config SYS_SUPPORTS_SH_CMT
476 bool
477
478config MTK_TIMER
479 bool "Mediatek timer driver" if COMPILE_TEST
480 depends on HAS_IOMEM
481 select TIMER_OF
482 select CLKSRC_MMIO
483 help
484 Support for Mediatek timer driver.
485
486config SPRD_TIMER
487 bool "Spreadtrum timer driver" if EXPERT
488 depends on HAS_IOMEM
489 depends on (ARCH_SPRD || COMPILE_TEST)
490 default ARCH_SPRD
491 select TIMER_OF
492 help
493 Enables support for the Spreadtrum timer driver.
494
495config SYS_SUPPORTS_SH_MTU2
496 bool
497
498config SYS_SUPPORTS_SH_TMU
499 bool
500
501config SYS_SUPPORTS_EM_STI
502 bool
503
504config CLKSRC_JCORE_PIT
505 bool "J-Core PIT timer driver" if COMPILE_TEST
506 depends on OF
507 depends on HAS_IOMEM
508 select CLKSRC_MMIO
509 help
510 This enables build of clocksource and clockevent driver for
511 the integrated PIT in the J-Core synthesizable, open source SoC.
512
513config SH_TIMER_CMT
514 bool "Renesas CMT timer driver" if COMPILE_TEST
515 depends on HAS_IOMEM
516 default SYS_SUPPORTS_SH_CMT
517 help
518 This enables build of a clocksource and clockevent driver for
519 the Compare Match Timer (CMT) hardware available in 16/32/48-bit
520 variants on a wide range of Mobile and Automotive SoCs from Renesas.
521
522config SH_TIMER_MTU2
523 bool "Renesas MTU2 timer driver" if COMPILE_TEST
524 depends on HAS_IOMEM
525 default SYS_SUPPORTS_SH_MTU2
526 help
527 This enables build of a clockevent driver for the Multi-Function
528 Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
529 This hardware comes with 16-bit timer registers.
530
531config RENESAS_OSTM
532 bool "Renesas OSTM timer driver" if COMPILE_TEST
533 select CLKSRC_MMIO
534 select TIMER_OF
535 help
536 Enables the support for the Renesas OSTM.
537
538config SH_TIMER_TMU
539 bool "Renesas TMU timer driver" if COMPILE_TEST
540 depends on HAS_IOMEM
541 default SYS_SUPPORTS_SH_TMU
542 help
543 This enables build of a clocksource and clockevent driver for
544 the 32-bit Timer Unit (TMU) hardware available on a wide range
545 SoCs from Renesas.
546
547config EM_TIMER_STI
548 bool "Renesas STI timer driver" if COMPILE_TEST
549 depends on HAS_IOMEM
550 default SYS_SUPPORTS_EM_STI
551 help
552 This enables build of a clocksource and clockevent driver for
553 the 48-bit System Timer (STI) hardware available on a SoCs
554 such as EMEV2 from former NEC Electronics.
555
556config CLKSRC_QCOM
557 bool "Qualcomm MSM timer" if COMPILE_TEST
558 depends on ARM
559 select TIMER_OF
560 help
561 This enables the clocksource and the per CPU clockevent driver for the
562 Qualcomm SoCs.
563
564config CLKSRC_VERSATILE
565 bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
566 depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
567 select TIMER_OF
568 default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM
569 help
570 This option enables clock source based on free running
571 counter available in the "System Registers" block of
572 ARM Versatile and Versatile Express reference platforms.
573
574config CLKSRC_MIPS_GIC
575 bool
576 depends on MIPS_GIC
577 select CLOCKSOURCE_WATCHDOG
578 select TIMER_OF
579
580config CLKSRC_TANGO_XTAL
581 bool "Clocksource for Tango SoC" if COMPILE_TEST
582 depends on ARM
583 select TIMER_OF
584 select CLKSRC_MMIO
585 help
586 This enables the clocksource for Tango SoC.
587
588config CLKSRC_PXA
589 bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
590 depends on HAS_IOMEM
591 select CLKSRC_MMIO
592 help
593 This enables OST0 support available on PXA and SA-11x0
594 platforms.
595
596config H8300_TMR8
597 bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
598 depends on HAS_IOMEM
599 help
600 This enables the 8 bits timer for the H8300 platform.
601
602config H8300_TMR16
603 bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
604 depends on HAS_IOMEM
605 help
606 This enables the 16 bits timer for the H8300 platform with the
607 H83069 CPU.
608
609config H8300_TPU
610 bool "Clocksource for the H8300 platform" if COMPILE_TEST
611 depends on HAS_IOMEM
612 help
613 This enables the clocksource for the H8300 platform with the
614 H8S2678 CPU.
615
616config CLKSRC_IMX_GPT
617 bool "Clocksource using i.MX GPT" if COMPILE_TEST
618 depends on (ARM || ARM64) && CLKDEV_LOOKUP
619 select CLKSRC_MMIO
620
621config CLKSRC_IMX_TPM
622 bool "Clocksource using i.MX TPM" if COMPILE_TEST
623 depends on (ARM || ARM64) && CLKDEV_LOOKUP
624 select CLKSRC_MMIO
625 select TIMER_OF
626 help
627 Enable this option to use IMX Timer/PWM Module (TPM) timer as
628 clocksource.
629
630config TIMER_IMX_SYS_CTR
631 bool "i.MX system counter timer" if COMPILE_TEST
632 select TIMER_OF
633 help
634 Enable this option to use i.MX system counter timer as a
635 clockevent.
636
637config CLKSRC_ST_LPC
638 bool "Low power clocksource found in the LPC" if COMPILE_TEST
639 select TIMER_OF if OF
640 depends on HAS_IOMEM
641 select CLKSRC_MMIO
642 help
643 Enable this option to use the Low Power controller timer
644 as clocksource.
645
646config ATCPIT100_TIMER
647 bool "ATCPIT100 timer driver"
648 depends on NDS32 || COMPILE_TEST
649 depends on HAS_IOMEM
650 select TIMER_OF
651 default NDS32
652 help
653 This option enables support for the Andestech ATCPIT100 timers.
654
655config RISCV_TIMER
656 bool "Timer for the RISC-V platform" if COMPILE_TEST
657 depends on GENERIC_SCHED_CLOCK && RISCV
658 select TIMER_PROBE
659 select TIMER_OF
660 help
661 This enables the per-hart timer built into all RISC-V systems, which
662 is accessed via both the SBI and the rdcycle instruction. This is
663 required for all RISC-V systems.
664
665config CLINT_TIMER
666 bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST
667 depends on GENERIC_SCHED_CLOCK && RISCV
668 select TIMER_PROBE
669 select TIMER_OF
670 help
671 This option enables the CLINT timer for RISC-V systems. The CLINT
672 driver is usually used for NoMMU RISC-V systems.
673
674config CSKY_MP_TIMER
675 bool "SMP Timer for the C-SKY platform" if COMPILE_TEST
676 depends on CSKY
677 select TIMER_OF
678 help
679 Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP
680 system.
681 csky,mptimer is not only used in SMP system, it also could be used in
682 single core system. It's not a mmio reg and it uses mtcr/mfcr instruction.
683
684config GX6605S_TIMER
685 bool "Gx6605s SOC system timer driver" if COMPILE_TEST
686 depends on CSKY
687 select CLKSRC_MMIO
688 select TIMER_OF
689 help
690 This option enables support for gx6605s SOC's timer.
691
692config MILBEAUT_TIMER
693 bool "Milbeaut timer driver" if COMPILE_TEST
694 depends on OF
695 depends on ARM
696 select TIMER_OF
697 select CLKSRC_MMIO
698 help
699 Enables the support for Milbeaut timer driver.
700
701config INGENIC_TIMER
702 bool "Clocksource/timer using the TCU in Ingenic JZ SoCs"
703 default MACH_INGENIC
704 depends on MIPS || COMPILE_TEST
705 depends on COMMON_CLK
706 select MFD_SYSCON
707 select TIMER_OF
708 select IRQ_DOMAIN
709 help
710 Support for the timer/counter unit of the Ingenic JZ SoCs.
711
712config INGENIC_SYSOST
713 bool "Clocksource/timer using the SYSOST in Ingenic X SoCs"
714 depends on MIPS || COMPILE_TEST
715 depends on COMMON_CLK
716 select MFD_SYSCON
717 select TIMER_OF
718 select IRQ_DOMAIN
719 help
720 Support for the SYSOST of the Ingenic X Series SoCs.
721
722config INGENIC_OST
723 bool "Clocksource using the OST in Ingenic JZ SoCs"
724 depends on MIPS || COMPILE_TEST
725 depends on COMMON_CLK
726 select MFD_SYSCON
727 help
728 Support for the Operating System Timer of the Ingenic JZ SoCs.
729
730config MICROCHIP_PIT64B
731 bool "Microchip PIT64B support"
732 depends on OF || COMPILE_TEST
733 select CLKSRC_MMIO
734 select TIMER_OF
735 help
736 This option enables Microchip PIT64B timer for Atmel
737 based system. It supports the oneshot, the periodic
738 modes and high resolution. It is used as a clocksource
739 and a clockevent.
740
741endmenu
1config CLKSRC_OF
2 bool
3
4config CLKSRC_I8253
5 bool
6
7config CLKEVT_I8253
8 bool
9
10config I8253_LOCK
11 bool
12
13config CLKBLD_I8253
14 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
15
16config CLKSRC_MMIO
17 bool
18
19config DW_APB_TIMER
20 bool
21
22config DW_APB_TIMER_OF
23 bool
24 select DW_APB_TIMER
25 select CLKSRC_OF
26
27config ARMADA_370_XP_TIMER
28 bool
29 select CLKSRC_OF
30
31config ORION_TIMER
32 select CLKSRC_OF
33 select CLKSRC_MMIO
34 bool
35
36config SUN4I_TIMER
37 select CLKSRC_MMIO
38 bool
39
40config SUN5I_HSTIMER
41 select CLKSRC_MMIO
42 bool
43
44config VT8500_TIMER
45 bool
46
47config CADENCE_TTC_TIMER
48 bool
49
50config CLKSRC_NOMADIK_MTU
51 bool
52 depends on (ARCH_NOMADIK || ARCH_U8500)
53 select CLKSRC_MMIO
54 help
55 Support for Multi Timer Unit. MTU provides access
56 to multiple interrupt generating programmable
57 32-bit free running decrementing counters.
58
59config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
60 bool
61 depends on CLKSRC_NOMADIK_MTU
62 help
63 Use the Multi Timer Unit as the sched_clock.
64
65config CLKSRC_DBX500_PRCMU
66 bool "Clocksource PRCMU Timer"
67 depends on UX500_SOC_DB8500
68 default y
69 help
70 Use the always on PRCMU Timer as clocksource
71
72config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
73 bool "Clocksource PRCMU Timer sched_clock"
74 depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
75 default y
76 help
77 Use the always on PRCMU Timer as sched_clock
78
79config CLKSRC_EFM32
80 bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
81 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
82 select CLKSRC_MMIO
83 default ARCH_EFM32
84 help
85 Support to use the timers of EFM32 SoCs as clock source and clock
86 event device.
87
88config ARM_ARCH_TIMER
89 bool
90 select CLKSRC_OF if OF
91
92config ARM_ARCH_TIMER_EVTSTREAM
93 bool "Support for ARM architected timer event stream generation"
94 default y if ARM_ARCH_TIMER
95 depends on ARM_ARCH_TIMER
96 help
97 This option enables support for event stream generation based on
98 the ARM architected timer. It is used for waking up CPUs executing
99 the wfe instruction at a frequency represented as a power-of-2
100 divisor of the clock rate.
101 The main use of the event stream is wfe-based timeouts of userspace
102 locking implementations. It might also be useful for imposing timeout
103 on wfe to safeguard against any programming errors in case an expected
104 event is not generated.
105 This must be disabled for hardware validation purposes to detect any
106 hardware anomalies of missing events.
107
108config ARM_GLOBAL_TIMER
109 bool
110 select CLKSRC_OF if OF
111 help
112 This options enables support for the ARM global timer unit
113
114config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
115 bool
116 depends on ARM_GLOBAL_TIMER
117 default y
118 help
119 Use ARM global timer clock source as sched_clock
120
121config CLKSRC_METAG_GENERIC
122 def_bool y if METAG
123 help
124 This option enables support for the Meta per-thread timers.
125
126config CLKSRC_EXYNOS_MCT
127 def_bool y if ARCH_EXYNOS
128 help
129 Support for Multi Core Timer controller on Exynos SoCs.
130
131config CLKSRC_SAMSUNG_PWM
132 bool
133 help
134 This is a new clocksource driver for the PWM timer found in
135 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
136 for all devicetree enabled platforms. This driver will be
137 needed only on systems that do not have the Exynos MCT available.
138
139config VF_PIT_TIMER
140 bool
141 help
142 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
143
144config SYS_SUPPORTS_SH_CMT
145 bool
146
147config SYS_SUPPORTS_SH_MTU2
148 bool
149
150config SYS_SUPPORTS_SH_TMU
151 bool
152
153config SYS_SUPPORTS_EM_STI
154 bool
155
156config SH_TIMER_CMT
157 bool "Renesas CMT timer driver" if COMPILE_TEST
158 depends on GENERIC_CLOCKEVENTS
159 default SYS_SUPPORTS_SH_CMT
160 help
161 This enables build of a clocksource and clockevent driver for
162 the Compare Match Timer (CMT) hardware available in 16/32/48-bit
163 variants on a wide range of Mobile and Automotive SoCs from Renesas.
164
165config SH_TIMER_MTU2
166 bool "Renesas MTU2 timer driver" if COMPILE_TEST
167 depends on GENERIC_CLOCKEVENTS
168 default SYS_SUPPORTS_SH_MTU2
169 help
170 This enables build of a clockevent driver for the Multi-Function
171 Timer Pulse Unit 2 (TMU2) hardware available on SoCs from Renesas.
172 This hardware comes with 16 bit-timer registers.
173
174config SH_TIMER_TMU
175 bool "Renesas TMU timer driver" if COMPILE_TEST
176 depends on GENERIC_CLOCKEVENTS
177 default SYS_SUPPORTS_SH_TMU
178 help
179 This enables build of a clocksource and clockevent driver for
180 the 32-bit Timer Unit (TMU) hardware available on a wide range
181 SoCs from Renesas.
182
183config EM_TIMER_STI
184 bool "Renesas STI timer driver" if COMPILE_TEST
185 depends on GENERIC_CLOCKEVENTS
186 default SYS_SUPPORTS_EM_STI
187 help
188 This enables build of a clocksource and clockevent driver for
189 the 48-bit System Timer (STI) hardware available on a SoCs
190 such as EMEV2 from former NEC Electronics.
191
192config CLKSRC_QCOM
193 bool