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1config CLKSRC_I8253
2 bool
3
4config CLKEVT_I8253
5 bool
6
7config I8253_LOCK
8 bool
9
10config CLKBLD_I8253
11 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
12
13config CLKSRC_MMIO
14 bool
15
16config DW_APB_TIMER
17 bool
1menu "Clock Source drivers"
2 depends on !ARCH_USES_GETTIMEOFFSET
3
4config CLKSRC_OF
5 bool
6 select CLKSRC_PROBE
7
8config CLKSRC_ACPI
9 bool
10 select CLKSRC_PROBE
11
12config CLKSRC_PROBE
13 bool
14
15config CLKSRC_I8253
16 bool
17
18config CLKEVT_I8253
19 bool
20
21config I8253_LOCK
22 bool
23
24config CLKBLD_I8253
25 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
26
27config CLKSRC_MMIO
28 bool
29
30config 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
37config 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
44config 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
52config 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
58config DW_APB_TIMER_OF
59 bool
60 select DW_APB_TIMER
61 select CLKSRC_OF
62
63config 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
70config 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
78config 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
85config 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
93config 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
101config 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
108config 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
115config 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
122config 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
128config 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
136config 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
145config 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
151config 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
158config 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
165config 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
172config 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
179config 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
187config 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
194config 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
202config 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
209config 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
217config 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
224config 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
231config 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
240config 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
249config 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
256config 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
264config 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
274config 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
279config 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
285config ARC_TIMERS
286 bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
287 depends on GENERIC_CLOCKEVENTS
288 select CLKSRC_OF
289 help
290 These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
291 (ARC700 as well as ARC HS38).
292 TIMER0 serves as clockevent while TIMER1 provides clocksource
293
294config ARC_TIMERS_64BIT
295 bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
296 depends on GENERIC_CLOCKEVENTS
297 depends on ARC_TIMERS
298 select CLKSRC_OF
299 help
300 This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
301 RTC is implemented inside the core, while GFRC sits outside the core in
302 ARConnect IP block. Driver automatically picks one of them for clocksource
303 as appropriate.
304
305config ARM_ARCH_TIMER
306 bool
307 select CLKSRC_OF if OF
308 select CLKSRC_ACPI if ACPI
309
310config ARM_ARCH_TIMER_EVTSTREAM
311 bool "Enable ARM architected timer event stream generation by default"
312 default y if ARM_ARCH_TIMER
313 depends on ARM_ARCH_TIMER
314 help
315 This option enables support by default for event stream generation
316 based on the ARM architected timer. It is used for waking up CPUs
317 executing the wfe instruction at a frequency represented as a
318 power-of-2 divisor of the clock rate. The behaviour can also be
319 overridden on the command line using the
320 clocksource.arm_arch_timer.evtstream parameter.
321 The main use of the event stream is wfe-based timeouts of userspace
322 locking implementations. It might also be useful for imposing timeout
323 on wfe to safeguard against any programming errors in case an expected
324 event is not generated.
325 This must be disabled for hardware validation purposes to detect any
326 hardware anomalies of missing events.
327
328config FSL_ERRATUM_A008585
329 bool "Workaround for Freescale/NXP Erratum A-008585"
330 default y
331 depends on ARM_ARCH_TIMER && ARM64
332 help
333 This option enables a workaround for Freescale/NXP Erratum
334 A-008585 ("ARM generic timer may contain an erroneous
335 value"). The workaround will only be active if the
336 fsl,erratum-a008585 property is found in the timer node.
337
338config ARM_GLOBAL_TIMER
339 bool "Support for the ARM global timer" if COMPILE_TEST
340 select CLKSRC_OF if OF
341 depends on ARM
342 help
343 This options enables support for the ARM global timer unit
344
345config ARM_TIMER_SP804
346 bool "Support for Dual Timer SP804 module"
347 depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
348 select CLKSRC_MMIO
349 select CLKSRC_OF if OF
350
351config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
352 bool
353 depends on ARM_GLOBAL_TIMER
354 default y
355 help
356 Use ARM global timer clock source as sched_clock
357
358config ARMV7M_SYSTICK
359 bool "Support for the ARMv7M system time" if COMPILE_TEST
360 select CLKSRC_OF if OF
361 select CLKSRC_MMIO
362 help
363 This options enables support for the ARMv7M system timer unit
364
365config ATMEL_PIT
366 select CLKSRC_OF if OF
367 def_bool SOC_AT91SAM9 || SOC_SAMA5
368
369config ATMEL_ST
370 bool "Atmel ST timer support" if COMPILE_TEST
371 depends on GENERIC_CLOCKEVENTS
372 select CLKSRC_OF
373 select MFD_SYSCON
374 help
375 Support for the Atmel ST timer.
376
377config CLKSRC_METAG_GENERIC
378 def_bool y if METAG
379 help
380 This option enables support for the Meta per-thread timers.
381
382config CLKSRC_EXYNOS_MCT
383 bool "Exynos multi core timer driver" if COMPILE_TEST
384 depends on ARM || ARM64
385 help
386 Support for Multi Core Timer controller on Exynos SoCs.
387
388config CLKSRC_SAMSUNG_PWM
389 bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
390 depends on GENERIC_CLOCKEVENTS
391 depends on HAS_IOMEM
392 help
393 This is a new clocksource driver for the PWM timer found in
394 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
395 for all devicetree enabled platforms. This driver will be
396 needed only on systems that do not have the Exynos MCT available.
397
398config FSL_FTM_TIMER
399 bool "Freescale FlexTimer Module driver" if COMPILE_TEST
400 depends on GENERIC_CLOCKEVENTS
401 depends on HAS_IOMEM
402 select CLKSRC_MMIO
403 help
404 Support for Freescale FlexTimer Module (FTM) timer.
405
406config VF_PIT_TIMER
407 bool
408 select CLKSRC_MMIO
409 help
410 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
411
412config OXNAS_RPS_TIMER
413 bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
414 depends on GENERIC_CLOCKEVENTS
415 select CLKSRC_OF
416 select CLKSRC_MMIO
417 help
418 This enables support for the Oxford Semiconductor OXNAS RPS timers.
419
420config SYS_SUPPORTS_SH_CMT
421 bool
422
423config MTK_TIMER
424 bool "Mediatek timer driver" if COMPILE_TEST
425 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
426 select CLKSRC_OF
427 select CLKSRC_MMIO
428 help
429 Support for Mediatek timer driver.
430
431config SYS_SUPPORTS_SH_MTU2
432 bool
433
434config SYS_SUPPORTS_SH_TMU
435 bool
436
437config SYS_SUPPORTS_EM_STI
438 bool
439
440config CLKSRC_JCORE_PIT
441 bool "J-Core PIT timer driver" if COMPILE_TEST
442 depends on OF
443 depends on GENERIC_CLOCKEVENTS
444 depends on HAS_IOMEM
445 select CLKSRC_MMIO
446 help
447 This enables build of clocksource and clockevent driver for
448 the integrated PIT in the J-Core synthesizable, open source SoC.
449
450config SH_TIMER_CMT
451 bool "Renesas CMT timer driver" if COMPILE_TEST
452 depends on GENERIC_CLOCKEVENTS
453 depends on HAS_IOMEM
454 default SYS_SUPPORTS_SH_CMT
455 help
456 This enables build of a clocksource and clockevent driver for
457 the Compare Match Timer (CMT) hardware available in 16/32/48-bit
458 variants on a wide range of Mobile and Automotive SoCs from Renesas.
459
460config SH_TIMER_MTU2
461 bool "Renesas MTU2 timer driver" if COMPILE_TEST
462 depends on GENERIC_CLOCKEVENTS
463 depends on HAS_IOMEM
464 default SYS_SUPPORTS_SH_MTU2
465 help
466 This enables build of a clockevent driver for the Multi-Function
467 Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
468 This hardware comes with 16 bit-timer registers.
469
470config SH_TIMER_TMU
471 bool "Renesas TMU timer driver" if COMPILE_TEST
472 depends on GENERIC_CLOCKEVENTS
473 depends on HAS_IOMEM
474 default SYS_SUPPORTS_SH_TMU
475 help
476 This enables build of a clocksource and clockevent driver for
477 the 32-bit Timer Unit (TMU) hardware available on a wide range
478 SoCs from Renesas.
479
480config EM_TIMER_STI
481 bool "Renesas STI timer driver" if COMPILE_TEST
482 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
483 default SYS_SUPPORTS_EM_STI
484 help
485 This enables build of a clocksource and clockevent driver for
486 the 48-bit System Timer (STI) hardware available on a SoCs
487 such as EMEV2 from former NEC Electronics.
488
489config CLKSRC_QCOM
490 bool "Qualcomm MSM timer" if COMPILE_TEST
491 depends on ARM
492 select CLKSRC_OF
493 help
494 This enables the clocksource and the per CPU clockevent driver for the
495 Qualcomm SoCs.
496
497config CLKSRC_VERSATILE
498 bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
499 depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
500 select CLKSRC_OF
501 default y if MFD_VEXPRESS_SYSREG
502 help
503 This option enables clock source based on free running
504 counter available in the "System Registers" block of
505 ARM Versatile, RealView and Versatile Express reference
506 platforms.
507
508config CLKSRC_MIPS_GIC
509 bool
510 depends on MIPS_GIC
511 select CLKSRC_OF
512
513config CLKSRC_TANGO_XTAL
514 bool "Clocksource for Tango SoC" if COMPILE_TEST
515 depends on ARM
516 select CLKSRC_OF
517 select CLKSRC_MMIO
518 help
519 This enables the clocksource for Tango SoC
520
521config CLKSRC_PXA
522 bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
523 depends on GENERIC_CLOCKEVENTS
524 depends on HAS_IOMEM
525 select CLKSRC_MMIO
526 help
527 This enables OST0 support available on PXA and SA-11x0
528 platforms.
529
530config H8300_TMR8
531 bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
532 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
533 help
534 This enables the 8 bits timer for the H8300 platform.
535
536config H8300_TMR16
537 bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
538 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
539 help
540 This enables the 16 bits timer for the H8300 platform with the
541 H83069 cpu.
542
543config H8300_TPU
544 bool "Clocksource for the H8300 platform" if COMPILE_TEST
545 depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
546 help
547 This enables the clocksource for the H8300 platform with the
548 H8S2678 cpu.
549
550config CLKSRC_IMX_GPT
551 bool "Clocksource using i.MX GPT" if COMPILE_TEST
552 depends on ARM && CLKDEV_LOOKUP
553 select CLKSRC_MMIO
554
555config CLKSRC_ST_LPC
556 bool "Low power clocksource found in the LPC" if COMPILE_TEST
557 select CLKSRC_OF if OF
558 depends on HAS_IOMEM
559 select CLKSRC_MMIO
560 help
561 Enable this option to use the Low Power controller timer
562 as clocksource.
563
564endmenu