tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_SYSTIMER
26 bool
27 select TIMER_OF
28
29config CLKBLD_I8253
30 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
31
32config CLKSRC_MMIO
33 bool
34
35config BCM2835_TIMER
36 bool "BCM2835 timer driver" if COMPILE_TEST
37 select CLKSRC_MMIO
38 help
39 Enables the support for the BCM2835 timer driver.
40
41config BCM_KONA_TIMER
42 bool "BCM mobile timer driver" if COMPILE_TEST
43 select CLKSRC_MMIO
44 help
45 Enables the support for the BCM Kona mobile timer driver.
46
47config DAVINCI_TIMER
48 bool "Texas Instruments DaVinci timer driver" if COMPILE_TEST
49 help
50 Enables the support for the TI DaVinci timer driver.
51
52config DIGICOLOR_TIMER
53 bool "Digicolor timer driver" if COMPILE_TEST
54 select CLKSRC_MMIO
55 depends on HAS_IOMEM
56 help
57 Enables the support for the digicolor timer driver.
58
59config OMAP_DM_TIMER
60 bool "OMAP dual-mode timer driver" if ARCH_K3 || COMPILE_TEST
61 default y if ARCH_K3
62 select TIMER_OF
63 help
64 Enables the support for the TI dual-mode timer driver.
65
66config DW_APB_TIMER
67 bool "DW APB timer driver" if COMPILE_TEST
68 help
69 Enables the support for the dw_apb timer.
70
71config DW_APB_TIMER_OF
72 bool
73 select DW_APB_TIMER
74 select TIMER_OF
75
76config ECONET_EN751221_TIMER
77 bool "EcoNet EN751221 High Precision Timer" if COMPILE_TEST
78 depends on HAS_IOMEM
79 select CLKSRC_MMIO
80 select TIMER_OF
81 help
82 Support for CPU timer found on EcoNet MIPS based SoCs.
83
84config FTTMR010_TIMER
85 bool "Faraday Technology timer driver" if COMPILE_TEST
86 depends on HAS_IOMEM
87 select CLKSRC_MMIO
88 select TIMER_OF
89 select MFD_SYSCON
90 help
91 Enables support for the Faraday Technology timer block
92 FTTMR010.
93
94config IXP4XX_TIMER
95 bool "Intel XScale IXP4xx timer driver" if COMPILE_TEST
96 depends on HAS_IOMEM
97 select CLKSRC_MMIO
98 select TIMER_OF
99 help
100 Enables support for the Intel XScale IXP4xx SoC timer.
101
102config ROCKCHIP_TIMER
103 bool "Rockchip timer driver" if COMPILE_TEST
104 depends on ARM || ARM64
105 select TIMER_OF
106 select CLKSRC_MMIO
107 help
108 Enables the support for the Rockchip timer driver.
109
110config ARMADA_370_XP_TIMER
111 bool "Armada 370 and XP timer driver" if COMPILE_TEST
112 depends on ARM
113 select TIMER_OF
114 select CLKSRC_MMIO
115 help
116 Enables the support for the Armada 370 and XP timer driver.
117
118config MESON6_TIMER
119 bool "Meson6 timer driver" if COMPILE_TEST
120 select CLKSRC_MMIO
121 help
122 Enables the support for the Meson6 timer driver.
123
124config ORION_TIMER
125 bool "Orion timer driver" if COMPILE_TEST
126 depends on ARM
127 select TIMER_OF
128 select CLKSRC_MMIO
129 help
130 Enables the support for the Orion timer driver
131
132config OWL_TIMER
133 bool "Owl timer driver" if COMPILE_TEST
134 select CLKSRC_MMIO
135 help
136 Enables the support for the Actions Semi Owl timer driver.
137
138config RDA_TIMER
139 bool "RDA timer driver" if COMPILE_TEST
140 select CLKSRC_MMIO
141 select TIMER_OF
142 help
143 Enables the support for the RDA Micro timer driver.
144
145config REALTEK_OTTO_TIMER
146 bool "Clocksource/timer for the Realtek Otto platform" if COMPILE_TEST
147 select TIMER_OF
148 help
149 This driver adds support for the timers found in the Realtek RTL83xx
150 and RTL93xx SoCs series. This includes chips such as RTL8380, RTL8381
151 and RTL832, as well as chips from the RTL839x series, such as RTL8390
152 RT8391, RTL8392, RTL8393 and RTL8396 and chips of the RTL930x series
153 such as RTL9301, RTL9302 or RTL9303.
154
155config SUN4I_TIMER
156 bool "Sun4i timer driver" if COMPILE_TEST
157 depends on HAS_IOMEM
158 select CLKSRC_MMIO
159 select TIMER_OF
160 help
161 Enables support for the Sun4i timer.
162
163config SUN5I_HSTIMER
164 bool "Sun5i timer driver" if COMPILE_TEST
165 select CLKSRC_MMIO
166 depends on COMMON_CLK
167 help
168 Enables support the Sun5i timer.
169
170config TEGRA_TIMER
171 bool "Tegra timer driver" if COMPILE_TEST
172 select CLKSRC_MMIO
173 select TIMER_OF
174 depends on ARCH_TEGRA || COMPILE_TEST
175 help
176 Enables support for the Tegra driver.
177
178config TEGRA186_TIMER
179 bool "NVIDIA Tegra186 timer driver"
180 depends on ARCH_TEGRA || COMPILE_TEST
181 depends on WATCHDOG && WATCHDOG_CORE
182 help
183 Enables support for the timers and watchdogs found on NVIDIA
184 Tegra186 and later SoCs.
185
186config VT8500_TIMER
187 bool "VT8500 timer driver" if COMPILE_TEST
188 depends on HAS_IOMEM
189 help
190 Enables support for the VT8500 driver.
191
192config NPCM7XX_TIMER
193 bool "NPCM7xx timer driver" if COMPILE_TEST
194 depends on HAS_IOMEM
195 select TIMER_OF
196 select CLKSRC_MMIO
197 help
198 Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
199 where TIMER0 serves as clockevent and TIMER1 serves as clocksource.
200
201config CADENCE_TTC_TIMER
202 bool "Cadence TTC timer driver" if COMPILE_TEST
203 depends on COMMON_CLK
204 help
205 Enables support for the Cadence TTC driver.
206
207config ASM9260_TIMER
208 bool "ASM9260 timer driver" if COMPILE_TEST
209 select CLKSRC_MMIO
210 select TIMER_OF
211 help
212 Enables support for the ASM9260 timer.
213
214config CLKSRC_NOMADIK_MTU
215 bool "Nomakdik clocksource driver" if COMPILE_TEST
216 depends on ARM
217 select CLKSRC_MMIO
218 help
219 Support for Multi Timer Unit. MTU provides access
220 to multiple interrupt generating programmable
221 32-bit free running decrementing counters.
222
223config CLKSRC_DBX500_PRCMU
224 bool "Clocksource PRCMU Timer" if COMPILE_TEST
225 depends on HAS_IOMEM
226 help
227 Use the always on PRCMU Timer as clocksource.
228
229config CLPS711X_TIMER
230 bool "Cirrus Logic timer driver" if COMPILE_TEST
231 select CLKSRC_MMIO
232 help
233 Enables support for the Cirrus Logic PS711 timer.
234
235config MXS_TIMER
236 bool "MXS timer driver" if COMPILE_TEST
237 select CLKSRC_MMIO
238 select STMP_DEVICE
239 help
240 Enables support for the MXS timer.
241
242config NSPIRE_TIMER
243 bool "NSpire timer driver" if COMPILE_TEST
244 select CLKSRC_MMIO
245 help
246 Enables support for the Nspire timer.
247
248config KEYSTONE_TIMER
249 bool "Keystone timer driver" if COMPILE_TEST
250 depends on ARM || ARM64
251 select CLKSRC_MMIO
252 help
253 Enables support for the Keystone timer.
254
255config INTEGRATOR_AP_TIMER
256 bool "Integrator-AP timer driver" if COMPILE_TEST
257 select CLKSRC_MMIO
258 help
259 Enables support for the Integrator-AP timer.
260
261config CLKSRC_LPC32XX
262 bool "Clocksource for LPC32XX" if COMPILE_TEST
263 depends on HAS_IOMEM
264 depends on ARM
265 select CLKSRC_MMIO
266 select TIMER_OF
267 help
268 Support for the LPC32XX clocksource.
269
270config CLKSRC_PISTACHIO
271 bool "Clocksource for Pistachio SoC"
272 depends on HAS_IOMEM
273 depends on MIPS || COMPILE_TEST
274 select TIMER_OF
275 help
276 Enables the clocksource for the Pistachio SoC.
277
278config CLKSRC_TI_32K
279 bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
280 depends on GENERIC_SCHED_CLOCK
281 select TIMER_OF if OF
282 help
283 This option enables support for Texas Instruments 32.768 Hz clocksource
284 available on many OMAP-like platforms.
285
286config CLKSRC_STM32
287 bool "Clocksource for STM32 SoCs" if !ARCH_STM32
288 depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
289 select CLKSRC_MMIO
290 select TIMER_OF
291
292config CLKSRC_STM32_LP
293 bool "Low power clocksource for STM32 SoCs"
294 depends on MFD_STM32_LPTIMER || COMPILE_TEST
295
296config CLKSRC_MPS2
297 bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
298 depends on GENERIC_SCHED_CLOCK
299 select CLKSRC_MMIO
300 select TIMER_OF
301
302config ARC_TIMERS
303 bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
304 depends on GENERIC_SCHED_CLOCK
305 select TIMER_OF
306 help
307 These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
308 (ARC700 as well as ARC HS38).
309 TIMER0 serves as clockevent while TIMER1 provides clocksource.
310
311config ARC_TIMERS_64BIT
312 bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
313 depends on ARC_TIMERS
314 select TIMER_OF
315 help
316 This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP).
317 RTC is implemented inside the core, while GFRC sits outside the core in
318 ARConnect IP block. Driver automatically picks one of them for clocksource
319 as appropriate.
320
321config ARM_ARCH_TIMER
322 bool
323 select TIMER_OF if OF
324 select TIMER_ACPI if ACPI
325
326config ARM_ARCH_TIMER_EVTSTREAM
327 bool "Enable ARM architected timer event stream generation by default"
328 default y if ARM_ARCH_TIMER
329 depends on ARM_ARCH_TIMER
330 help
331 This option enables support by default for event stream generation
332 based on the ARM architected timer. It is used for waking up CPUs
333 executing the wfe instruction at a frequency represented as a
334 power-of-2 divisor of the clock rate. The behaviour can also be
335 overridden on the command line using the
336 clocksource.arm_arch_timer.evtstream parameter.
337 The main use of the event stream is wfe-based timeouts of userspace
338 locking implementations. It might also be useful for imposing timeout
339 on wfe to safeguard against any programming errors in case an expected
340 event is not generated.
341 This must be disabled for hardware validation purposes to detect any
342 hardware anomalies of missing events.
343
344config ARM_ARCH_TIMER_OOL_WORKAROUND
345 bool
346
347config FSL_ERRATUM_A008585
348 bool "Workaround for Freescale/NXP Erratum A-008585"
349 default y
350 depends on ARM_ARCH_TIMER && ARM64
351 select ARM_ARCH_TIMER_OOL_WORKAROUND
352 help
353 This option enables a workaround for Freescale/NXP Erratum
354 A-008585 ("ARM generic timer may contain an erroneous
355 value"). The workaround will only be active if the
356 fsl,erratum-a008585 property is found in the timer node.
357
358config HISILICON_ERRATUM_161010101
359 bool "Workaround for Hisilicon Erratum 161010101"
360 default y
361 select ARM_ARCH_TIMER_OOL_WORKAROUND
362 depends on ARM_ARCH_TIMER && ARM64
363 help
364 This option enables a workaround for Hisilicon Erratum
365 161010101. The workaround will be active if the hisilicon,erratum-161010101
366 property is found in the timer node.
367
368config ARM64_ERRATUM_858921
369 bool "Workaround for Cortex-A73 erratum 858921"
370 default y
371 select ARM_ARCH_TIMER_OOL_WORKAROUND
372 depends on ARM_ARCH_TIMER && ARM64
373 help
374 This option enables a workaround applicable to Cortex-A73
375 (all versions), whose counter may return incorrect values.
376 The workaround will be dynamically enabled when an affected
377 core is detected.
378
379config SUN50I_ERRATUM_UNKNOWN1
380 bool "Workaround for Allwinner A64 erratum UNKNOWN1"
381 default y
382 depends on ARM_ARCH_TIMER && ARM64 && ARCH_SUNXI
383 select ARM_ARCH_TIMER_OOL_WORKAROUND
384 help
385 This option enables a workaround for instability in the timer on
386 the Allwinner A64 SoC. The workaround will only be active if the
387 allwinner,erratum-unknown1 property is found in the timer node.
388
389config ARM_GLOBAL_TIMER
390 bool "Support for the ARM global timer" if COMPILE_TEST
391 select TIMER_OF if OF
392 depends on ARM
393 help
394 This option enables support for the ARM global timer unit.
395
396config ARM_GT_INITIAL_PRESCALER_VAL
397 int "ARM global timer initial prescaler value"
398 default 2 if ARCH_ZYNQ
399 default 1
400 depends on ARM_GLOBAL_TIMER
401 help
402 When the ARM global timer initializes, its current rate is declared
403 to the kernel and maintained forever. Should its parent clock
404 change, the driver tries to fix the timer's internal prescaler.
405 On some machs (i.e. Zynq) the initial prescaler value thus poses
406 bounds about how much the parent clock is allowed to decrease or
407 increase wrt the initial clock value.
408 This affects CPU_FREQ max delta from the initial frequency.
409
410config ARM_TIMER_SP804
411 bool "Support for Dual Timer SP804 module"
412 depends on ARM || ARM64 || COMPILE_TEST
413 depends on GENERIC_SCHED_CLOCK && HAVE_CLK
414 select CLKSRC_MMIO
415 select TIMER_OF if OF
416
417config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
418 bool
419 depends on ARM_GLOBAL_TIMER
420 default y
421 help
422 Use ARM global timer clock source as sched_clock.
423
424config ARMV7M_SYSTICK
425 bool "Support for the ARMv7M system time" if COMPILE_TEST
426 select TIMER_OF if OF
427 select CLKSRC_MMIO
428 help
429 This option enables support for the ARMv7M system timer unit.
430
431config ATMEL_PIT
432 bool "Atmel PIT support" if COMPILE_TEST
433 depends on HAS_IOMEM
434 select TIMER_OF if OF
435 help
436 Support for the Periodic Interval Timer found on Atmel SoCs.
437
438config ATMEL_ST
439 bool "Atmel ST timer support" if COMPILE_TEST
440 depends on HAS_IOMEM
441 select TIMER_OF
442 select MFD_SYSCON
443 help
444 Support for the Atmel ST timer.
445
446config ATMEL_TCB_CLKSRC
447 bool "Atmel TC Block timer driver" if COMPILE_TEST
448 depends on ARM && OF && HAS_IOMEM
449 select TIMER_OF
450 help
451 Support for Timer Counter Blocks on Atmel SoCs.
452
453config CLKSRC_EXYNOS_MCT
454 bool "Exynos multi core timer driver" if COMPILE_TEST
455 depends on ARM || ARM64
456 depends on ARCH_ARTPEC || ARCH_EXYNOS || COMPILE_TEST
457 help
458 Support for Multi Core Timer controller on Exynos SoCs.
459
460config CLKSRC_SAMSUNG_PWM
461 bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
462 depends on HAS_IOMEM
463 depends on ARCH_EXYNOS || ARCH_S3C64XX || ARCH_S5PV210 || COMPILE_TEST
464 help
465 This is a new clocksource driver for the PWM timer found in
466 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
467 for all devicetree enabled platforms. This driver will be
468 needed only on systems that do not have the Exynos MCT available.
469
470config FSL_FTM_TIMER
471 bool "Freescale FlexTimer Module driver" if COMPILE_TEST
472 depends on HAS_IOMEM
473 select CLKSRC_MMIO
474 help
475 Support for Freescale FlexTimer Module (FTM) timer.
476
477config VF_PIT_TIMER
478 bool
479 select CLKSRC_MMIO
480 help
481 Support for Periodic Interrupt Timer on Freescale Vybrid Family SoCs.
482
483config SYS_SUPPORTS_SH_CMT
484 bool
485
486config MTK_TIMER
487 bool "Mediatek timer driver" if COMPILE_TEST
488 depends on HAS_IOMEM
489 select TIMER_OF
490 select CLKSRC_MMIO
491 help
492 Support for Mediatek timer driver.
493
494config MTK_CPUX_TIMER
495 bool "MediaTek CPUX timer driver" if COMPILE_TEST
496 depends on HAS_IOMEM
497 default ARCH_MEDIATEK
498 select TIMER_OF
499 select CLKSRC_MMIO
500 help
501 Support for MediaTek CPUXGPT timer driver.
502
503config SPRD_TIMER
504 bool "Spreadtrum timer driver" if EXPERT
505 depends on HAS_IOMEM
506 depends on (ARCH_SPRD || COMPILE_TEST)
507 default ARCH_SPRD
508 select TIMER_OF
509 help
510 Enables support for the Spreadtrum timer driver.
511
512config SYS_SUPPORTS_SH_MTU2
513 bool
514
515config SYS_SUPPORTS_SH_TMU
516 bool
517
518config SYS_SUPPORTS_EM_STI
519 bool
520
521config CLKSRC_JCORE_PIT
522 bool "J-Core PIT timer driver" if COMPILE_TEST
523 depends on OF
524 depends on HAS_IOMEM
525 select CLKSRC_MMIO
526 help
527 This enables build of clocksource and clockevent driver for
528 the integrated PIT in the J-Core synthesizable, open source SoC.
529
530config SH_TIMER_CMT
531 bool "Renesas CMT timer driver" if COMPILE_TEST
532 depends on HAS_IOMEM
533 default SYS_SUPPORTS_SH_CMT
534 help
535 This enables build of a clocksource and clockevent driver for
536 the Compare Match Timer (CMT) hardware available in 16/32/48-bit
537 variants on a wide range of Mobile and Automotive SoCs from Renesas.
538
539config SH_TIMER_MTU2
540 bool "Renesas MTU2 timer driver" if COMPILE_TEST
541 depends on HAS_IOMEM
542 default SYS_SUPPORTS_SH_MTU2
543 help
544 This enables build of a clockevent driver for the Multi-Function
545 Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
546 This hardware comes with 16-bit timer registers.
547
548config RENESAS_OSTM
549 bool "Renesas OSTM timer driver"
550 depends on ARCH_RENESAS || COMPILE_TEST
551 select CLKSRC_MMIO
552 select TIMER_OF
553 help
554 Enables the support for the Renesas OSTM.
555
556config SH_TIMER_TMU
557 bool "Renesas TMU timer driver" if COMPILE_TEST
558 depends on HAS_IOMEM
559 default SYS_SUPPORTS_SH_TMU
560 help
561 This enables build of a clocksource and clockevent driver for
562 the 32-bit Timer Unit (TMU) hardware available on a wide range
563 SoCs from Renesas.
564
565config EM_TIMER_STI
566 bool "Renesas STI timer driver" if COMPILE_TEST
567 depends on HAS_IOMEM
568 default SYS_SUPPORTS_EM_STI
569 help
570 This enables build of a clocksource and clockevent driver for
571 the 48-bit System Timer (STI) hardware available on a SoCs
572 such as EMEV2 from former NEC Electronics.
573
574config CLKSRC_QCOM
575 bool "Qualcomm MSM timer" if COMPILE_TEST
576 depends on ARM
577 select TIMER_OF
578 help
579 This enables the clocksource and the per CPU clockevent driver for the
580 Qualcomm SoCs.
581
582config CLKSRC_VERSATILE
583 bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
584 depends on GENERIC_SCHED_CLOCK
585 select TIMER_OF
586 default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM
587 help
588 This option enables clock source based on free running
589 counter available in the "System Registers" block of
590 ARM Versatile and Versatile Express reference platforms.
591
592config CLKSRC_MIPS_GIC
593 bool
594 depends on MIPS_GIC
595 select CLOCKSOURCE_WATCHDOG
596 select TIMER_OF
597
598config CLKSRC_PXA
599 bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
600 depends on HAS_IOMEM
601 select CLKSRC_MMIO
602 help
603 This enables OST0 support available on PXA and SA-11x0
604 platforms.
605
606config CLKSRC_IMX_GPT
607 bool "Clocksource using i.MX GPT" if COMPILE_TEST
608 depends on (ARM || ARM64) && HAVE_CLK
609 select CLKSRC_MMIO
610
611config CLKSRC_IMX_TPM
612 bool "Clocksource using i.MX TPM" if COMPILE_TEST
613 depends on (ARM || ARM64) && HAVE_CLK
614 select CLKSRC_MMIO
615 select TIMER_OF
616 help
617 Enable this option to use IMX Timer/PWM Module (TPM) timer as
618 clocksource.
619
620config TIMER_IMX_SYS_CTR
621 bool "i.MX system counter timer" if COMPILE_TEST
622 select TIMER_OF
623 help
624 Enable this option to use i.MX system counter timer as a
625 clockevent.
626
627config CLKSRC_LOONGSON1_PWM
628 bool "Clocksource using Loongson1 PWM"
629 depends on MACH_LOONGSON32 || COMPILE_TEST
630 select MIPS_EXTERNAL_TIMER
631 select TIMER_OF
632 help
633 Enable this option to use Loongson1 PWM timer as clocksource
634 instead of the performance counter.
635
636config CLKSRC_ST_LPC
637 bool "Low power clocksource found in the LPC" if COMPILE_TEST
638 select TIMER_OF if OF
639 depends on HAS_IOMEM
640 select CLKSRC_MMIO
641 help
642 Enable this option to use the Low Power controller timer
643 as clocksource.
644
645config GXP_TIMER
646 bool "GXP timer driver" if COMPILE_TEST && !ARCH_HPE
647 default ARCH_HPE
648 select TIMER_OF if OF
649 help
650 Provides a driver for the timer control found on HPE
651 GXP SOCs. This is required for all GXP SOCs.
652
653config RISCV_TIMER
654 bool "Timer for the RISC-V platform" if COMPILE_TEST
655 depends on GENERIC_SCHED_CLOCK && RISCV && RISCV_SBI
656 select TIMER_PROBE
657 select TIMER_OF
658 help
659 This enables the per-hart timer built into all RISC-V systems, which
660 is accessed via both the SBI and the rdcycle instruction. This is
661 required for all RISC-V systems.
662
663config CLINT_TIMER
664 bool "CLINT Timer for the RISC-V platform" if COMPILE_TEST
665 depends on GENERIC_SCHED_CLOCK && RISCV
666 select TIMER_PROBE
667 select TIMER_OF
668 help
669 This option enables the CLINT timer for RISC-V systems. The CLINT
670 driver is usually used for NoMMU RISC-V systems.
671
672config CSKY_MP_TIMER
673 bool "SMP Timer for the C-SKY platform" if COMPILE_TEST
674 depends on CSKY
675 select TIMER_OF
676 help
677 Say yes here to enable C-SKY SMP timer driver used for C-SKY SMP
678 system.
679 csky,mptimer is not only used in SMP system, it also could be used in
680 single core system. It's not a mmio reg and it uses mtcr/mfcr instruction.
681
682config GX6605S_TIMER
683 bool "Gx6605s SOC system timer driver" if COMPILE_TEST
684 depends on CSKY
685 select CLKSRC_MMIO
686 select TIMER_OF
687 help
688 This option enables support for gx6605s SOC's timer.
689
690config MILBEAUT_TIMER
691 bool "Milbeaut timer driver" if COMPILE_TEST
692 depends on OF
693 depends on ARM
694 select TIMER_OF
695 select CLKSRC_MMIO
696 help
697 Enables the support for Milbeaut timer driver.
698
699config MSC313E_TIMER
700 bool "MSC313E timer driver" if COMPILE_TEST
701 select TIMER_OF
702 select CLKSRC_MMIO
703 help
704 Enables support for the MStar MSC313E timer driver.
705 This provides access to multiple interrupt generating
706 programmable 32-bit free running incrementing counters.
707
708config INGENIC_TIMER
709 bool "Clocksource/timer using the TCU in Ingenic JZ SoCs"
710 default MACH_INGENIC
711 depends on MIPS || COMPILE_TEST
712 depends on COMMON_CLK
713 select MFD_SYSCON
714 select TIMER_OF
715 select IRQ_DOMAIN
716 help
717 Support for the timer/counter unit of the Ingenic JZ SoCs.
718
719config INGENIC_SYSOST
720 bool "Clocksource/timer using the SYSOST in Ingenic X SoCs"
721 depends on MIPS || COMPILE_TEST
722 depends on COMMON_CLK
723 select MFD_SYSCON
724 select TIMER_OF
725 select IRQ_DOMAIN
726 help
727 Support for the SYSOST of the Ingenic X Series SoCs.
728
729config INGENIC_OST
730 bool "Clocksource using the OST in Ingenic JZ SoCs"
731 depends on MIPS || COMPILE_TEST
732 depends on COMMON_CLK
733 select MFD_SYSCON
734 help
735 Support for the Operating System Timer of the Ingenic JZ SoCs.
736
737config MICROCHIP_PIT64B
738 bool "Microchip PIT64B support"
739 depends on OF && ARM
740 select TIMER_OF
741 help
742 This option enables Microchip PIT64B timer for Atmel
743 based system. It supports the oneshot, the periodic
744 modes and high resolution. It is used as a clocksource
745 and a clockevent.
746
747config GOLDFISH_TIMER
748 bool "Clocksource using goldfish-rtc"
749 depends on M68K || COMPILE_TEST
750 depends on RTC_DRV_GOLDFISH
751 help
752 Support for the timer/counter of goldfish-rtc
753
754config EP93XX_TIMER
755 bool "Cirrus Logic ep93xx timer driver" if COMPILE_TEST
756 depends on ARCH_EP93XX
757 depends on GENERIC_CLOCKEVENTS
758 depends on HAS_IOMEM
759 select CLKSRC_MMIO
760 select TIMER_OF
761 help
762 Enables support for the Cirrus Logic timer block
763 EP93XX.
764
765config RALINK_TIMER
766 bool "Ralink System Tick Counter"
767 depends on SOC_RT305X || SOC_MT7620 || COMPILE_TEST
768 select CLKSRC_MMIO
769 select TIMER_OF
770 help
771 Enables support for system tick counter present on
772 Ralink SoCs RT3352 and MT7620.
773
774config NXP_STM_TIMER
775 bool "NXP System Timer Module driver"
776 depends on ARCH_S32 || COMPILE_TEST
777 select CLKSRC_MMIO
778 help
779 Enables the support for NXP System Timer Module found in the
780 s32g NXP platform series.
781
782endmenu