Merge tag 'nds32-for-linus-4.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6-block.git] / drivers / clocksource / Kconfig
... / ...
CommitLineData
1menu "Clock Source drivers"
2 depends on GENERIC_CLOCKEVENTS
3
4config TIMER_OF
5 bool
6 select TIMER_PROBE
7
8config TIMER_ACPI
9 bool
10 select TIMER_PROBE
11
12config TIMER_PROBE
13 bool
14
15config CLKSRC_I8253
16 bool
17
18config CLKEVT_I8253
19 bool
20
21config I8253_LOCK
22 bool
23
24config OMAP_DM_TIMER
25 bool
26
27config CLKBLD_I8253
28 def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
29
30config CLKSRC_MMIO
31 bool
32
33config BCM2835_TIMER
34 bool "BCM2835 timer driver" if COMPILE_TEST
35 select CLKSRC_MMIO
36 help
37 Enables the support for the BCM2835 timer driver.
38
39config BCM_KONA_TIMER
40 bool "BCM mobile timer driver" if COMPILE_TEST
41 select CLKSRC_MMIO
42 help
43 Enables the support for the BCM Kona mobile timer driver.
44
45config DIGICOLOR_TIMER
46 bool "Digicolor timer driver" if COMPILE_TEST
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 help
55 Enables the support for the dw_apb timer.
56
57config DW_APB_TIMER_OF
58 bool
59 select DW_APB_TIMER
60 select TIMER_OF
61
62config FTTMR010_TIMER
63 bool "Faraday Technology timer driver" if COMPILE_TEST
64 depends on HAS_IOMEM
65 select CLKSRC_MMIO
66 select TIMER_OF
67 select MFD_SYSCON
68 help
69 Enables support for the Faraday Technology timer block
70 FTTMR010.
71
72config ROCKCHIP_TIMER
73 bool "Rockchip timer driver" if COMPILE_TEST
74 depends on ARM || ARM64
75 select TIMER_OF
76 select CLKSRC_MMIO
77 help
78 Enables the support for the rockchip timer driver.
79
80config ARMADA_370_XP_TIMER
81 bool "Armada 370 and XP timer driver" if COMPILE_TEST
82 depends on ARM
83 select TIMER_OF
84 select CLKSRC_MMIO
85 help
86 Enables the support for the Armada 370 and XP timer driver.
87
88config MESON6_TIMER
89 bool "Meson6 timer driver" if COMPILE_TEST
90 select CLKSRC_MMIO
91 help
92 Enables the support for the Meson6 timer driver.
93
94config ORION_TIMER
95 bool "Orion timer driver" if COMPILE_TEST
96 depends on ARM
97 select TIMER_OF
98 select CLKSRC_MMIO
99 help
100 Enables the support for the Orion timer driver
101
102config OWL_TIMER
103 bool "Owl timer driver" if COMPILE_TEST
104 select CLKSRC_MMIO
105 help
106 Enables the support for the Actions Semi Owl timer driver.
107
108config SUN4I_TIMER
109 bool "Sun4i timer driver" if COMPILE_TEST
110 depends on HAS_IOMEM
111 select CLKSRC_MMIO
112 select TIMER_OF
113 help
114 Enables support for the Sun4i timer.
115
116config SUN5I_HSTIMER
117 bool "Sun5i timer driver" if COMPILE_TEST
118 select CLKSRC_MMIO
119 depends on COMMON_CLK
120 help
121 Enables support the Sun5i timer.
122
123config TEGRA_TIMER
124 bool "Tegra timer driver" if COMPILE_TEST
125 select CLKSRC_MMIO
126 depends on ARM
127 help
128 Enables support for the Tegra driver.
129
130config VT8500_TIMER
131 bool "VT8500 timer driver" if COMPILE_TEST
132 depends on HAS_IOMEM
133 help
134 Enables support for the VT8500 driver.
135
136config NPCM7XX_TIMER
137 bool "NPCM7xx timer driver" if COMPILE_TEST
138 depends on HAS_IOMEM
139 select CLKSRC_MMIO
140 help
141 Enable 24-bit TIMER0 and TIMER1 counters in the NPCM7xx architecture,
142 While TIMER0 serves as clockevent and TIMER1 serves as clocksource.
143
144config CADENCE_TTC_TIMER
145 bool "Cadence TTC timer driver" if COMPILE_TEST
146 depends on COMMON_CLK
147 help
148 Enables support for the cadence ttc driver.
149
150config ASM9260_TIMER
151 bool "ASM9260 timer driver" if COMPILE_TEST
152 select CLKSRC_MMIO
153 select TIMER_OF
154 help
155 Enables support for the ASM9260 timer.
156
157config CLKSRC_NOMADIK_MTU
158 bool "Nomakdik clocksource driver" if COMPILE_TEST
159 depends on ARM
160 select CLKSRC_MMIO
161 help
162 Support for Multi Timer Unit. MTU provides access
163 to multiple interrupt generating programmable
164 32-bit free running decrementing counters.
165
166config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
167 bool
168 depends on CLKSRC_NOMADIK_MTU
169 help
170 Use the Multi Timer Unit as the sched_clock.
171
172config CLKSRC_DBX500_PRCMU
173 bool "Clocksource PRCMU Timer" if COMPILE_TEST
174 depends on HAS_IOMEM
175 help
176 Use the always on PRCMU Timer as clocksource
177
178config CLPS711X_TIMER
179 bool "Cirrus logic timer driver" if COMPILE_TEST
180 select CLKSRC_MMIO
181 help
182 Enables support for the Cirrus Logic PS711 timer.
183
184config ATLAS7_TIMER
185 bool "Atlas7 timer driver" if COMPILE_TEST
186 select CLKSRC_MMIO
187 help
188 Enables support for the Atlas7 timer.
189
190config MXS_TIMER
191 bool "Mxs timer driver" if COMPILE_TEST
192 select CLKSRC_MMIO
193 select STMP_DEVICE
194 help
195 Enables support for the Mxs timer.
196
197config PRIMA2_TIMER
198 bool "Prima2 timer driver" if COMPILE_TEST
199 select CLKSRC_MMIO
200 help
201 Enables support for the Prima2 timer.
202
203config U300_TIMER
204 bool "U300 timer driver" if COMPILE_TEST
205 depends on ARM
206 select CLKSRC_MMIO
207 help
208 Enables support for the U300 timer.
209
210config NSPIRE_TIMER
211 bool "NSpire timer driver" if COMPILE_TEST
212 select CLKSRC_MMIO
213 help
214 Enables support for the Nspire timer.
215
216config KEYSTONE_TIMER
217 bool "Keystone timer driver" if COMPILE_TEST
218 depends on ARM || ARM64
219 select CLKSRC_MMIO
220 help
221 Enables support for the Keystone timer.
222
223config INTEGRATOR_AP_TIMER
224 bool "Integrator-ap timer driver" if COMPILE_TEST
225 select CLKSRC_MMIO
226 help
227 Enables support for the Integrator-ap timer.
228
229config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
230 bool "Clocksource PRCMU Timer sched_clock"
231 depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
232 default y
233 help
234 Use the always on PRCMU Timer as sched_clock
235
236config CLKSRC_EFM32
237 bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
238 depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
239 select CLKSRC_MMIO
240 default ARCH_EFM32
241 help
242 Support to use the timers of EFM32 SoCs as clock source and clock
243 event device.
244
245config CLKSRC_LPC32XX
246 bool "Clocksource for LPC32XX" if COMPILE_TEST
247 depends on HAS_IOMEM
248 depends on ARM
249 select CLKSRC_MMIO
250 select TIMER_OF
251 help
252 Support for the LPC32XX clocksource.
253
254config CLKSRC_PISTACHIO
255 bool "Clocksource for Pistachio SoC" if COMPILE_TEST
256 depends on HAS_IOMEM
257 select TIMER_OF
258 help
259 Enables the clocksource for the Pistachio SoC.
260
261config CLKSRC_TI_32K
262 bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
263 depends on GENERIC_SCHED_CLOCK
264 select TIMER_OF if OF
265 help
266 This option enables support for Texas Instruments 32.768 Hz clocksource
267 available on many OMAP-like platforms.
268
269config CLKSRC_NPS
270 bool "NPS400 clocksource driver" if COMPILE_TEST
271 depends on !PHYS_ADDR_T_64BIT
272 select CLKSRC_MMIO
273 select TIMER_OF if OF
274 help
275 NPS400 clocksource support.
276 Got 64 bit counter with update rate up to 1000MHz.
277 This counter is accessed via couple of 32 bit memory mapped registers.
278
279config CLKSRC_STM32
280 bool "Clocksource for STM32 SoCs" if !ARCH_STM32
281 depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
282 select CLKSRC_MMIO
283 select TIMER_OF
284
285config CLKSRC_MPS2
286 bool "Clocksource for MPS2 SoCs" if COMPILE_TEST
287 depends on GENERIC_SCHED_CLOCK
288 select CLKSRC_MMIO
289 select TIMER_OF
290
291config ARC_TIMERS
292 bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
293 select TIMER_OF
294 help
295 These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
296 (ARC700 as well as ARC HS38).
297 TIMER0 serves as clockevent while TIMER1 provides clocksource
298
299config ARC_TIMERS_64BIT
300 bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
301 depends on ARC_TIMERS
302 select TIMER_OF
303 help
304 This enables 2 different 64-bit timers: RTC (for UP) and GFRC (for SMP)
305 RTC is implemented inside the core, while GFRC sits outside the core in
306 ARConnect IP block. Driver automatically picks one of them for clocksource
307 as appropriate.
308
309config ARM_ARCH_TIMER
310 bool
311 select TIMER_OF if OF
312 select TIMER_ACPI if ACPI
313
314config ARM_ARCH_TIMER_EVTSTREAM
315 bool "Enable ARM architected timer event stream generation by default"
316 default y if ARM_ARCH_TIMER
317 depends on ARM_ARCH_TIMER
318 help
319 This option enables support by default for event stream generation
320 based on the ARM architected timer. It is used for waking up CPUs
321 executing the wfe instruction at a frequency represented as a
322 power-of-2 divisor of the clock rate. The behaviour can also be
323 overridden on the command line using the
324 clocksource.arm_arch_timer.evtstream parameter.
325 The main use of the event stream is wfe-based timeouts of userspace
326 locking implementations. It might also be useful for imposing timeout
327 on wfe to safeguard against any programming errors in case an expected
328 event is not generated.
329 This must be disabled for hardware validation purposes to detect any
330 hardware anomalies of missing events.
331
332config ARM_ARCH_TIMER_OOL_WORKAROUND
333 bool
334
335config FSL_ERRATUM_A008585
336 bool "Workaround for Freescale/NXP Erratum A-008585"
337 default y
338 depends on ARM_ARCH_TIMER && ARM64
339 select ARM_ARCH_TIMER_OOL_WORKAROUND
340 help
341 This option enables a workaround for Freescale/NXP Erratum
342 A-008585 ("ARM generic timer may contain an erroneous
343 value"). The workaround will only be active if the
344 fsl,erratum-a008585 property is found in the timer node.
345
346config HISILICON_ERRATUM_161010101
347 bool "Workaround for Hisilicon Erratum 161010101"
348 default y
349 select ARM_ARCH_TIMER_OOL_WORKAROUND
350 depends on ARM_ARCH_TIMER && ARM64
351 help
352 This option enables a workaround for Hisilicon Erratum
353 161010101. The workaround will be active if the hisilicon,erratum-161010101
354 property is found in the timer node.
355
356config ARM64_ERRATUM_858921
357 bool "Workaround for Cortex-A73 erratum 858921"
358 default y
359 select ARM_ARCH_TIMER_OOL_WORKAROUND
360 depends on ARM_ARCH_TIMER && ARM64
361 help
362 This option enables a workaround applicable to Cortex-A73
363 (all versions), whose counter may return incorrect values.
364 The workaround will be dynamically enabled when an affected
365 core is detected.
366
367config ARM_GLOBAL_TIMER
368 bool "Support for the ARM global timer" if COMPILE_TEST
369 select TIMER_OF if OF
370 depends on ARM
371 help
372 This options enables support for the ARM global timer unit
373
374config ARM_TIMER_SP804
375 bool "Support for Dual Timer SP804 module"
376 depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
377 select CLKSRC_MMIO
378 select TIMER_OF if OF
379
380config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
381 bool
382 depends on ARM_GLOBAL_TIMER
383 default y
384 help
385 Use ARM global timer clock source as sched_clock
386
387config ARMV7M_SYSTICK
388 bool "Support for the ARMv7M system time" if COMPILE_TEST
389 select TIMER_OF if OF
390 select CLKSRC_MMIO
391 help
392 This options enables support for the ARMv7M system timer unit
393
394config ATMEL_PIT
395 select TIMER_OF if OF
396 def_bool SOC_AT91SAM9 || SOC_SAMA5
397
398config ATMEL_ST
399 bool "Atmel ST timer support" if COMPILE_TEST
400 depends on HAS_IOMEM
401 select TIMER_OF
402 select MFD_SYSCON
403 help
404 Support for the Atmel ST timer.
405
406config CLKSRC_EXYNOS_MCT
407 bool "Exynos multi core timer driver" if COMPILE_TEST
408 depends on ARM || ARM64
409 help
410 Support for Multi Core Timer controller on Exynos SoCs.
411
412config CLKSRC_SAMSUNG_PWM
413 bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
414 depends on HAS_IOMEM
415 help
416 This is a new clocksource driver for the PWM timer found in
417 Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
418 for all devicetree enabled platforms. This driver will be
419 needed only on systems that do not have the Exynos MCT available.
420
421config FSL_FTM_TIMER
422 bool "Freescale FlexTimer Module driver" if COMPILE_TEST
423 depends on HAS_IOMEM
424 select CLKSRC_MMIO
425 help
426 Support for Freescale FlexTimer Module (FTM) timer.
427
428config VF_PIT_TIMER
429 bool
430 select CLKSRC_MMIO
431 help
432 Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
433
434config OXNAS_RPS_TIMER
435 bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
436 select TIMER_OF
437 select CLKSRC_MMIO
438 help
439 This enables support for the Oxford Semiconductor OXNAS RPS timers.
440
441config SYS_SUPPORTS_SH_CMT
442 bool
443
444config MTK_TIMER
445 bool "Mediatek timer driver" if COMPILE_TEST
446 depends on HAS_IOMEM
447 select TIMER_OF
448 select CLKSRC_MMIO
449 help
450 Support for Mediatek timer driver.
451
452config SPRD_TIMER
453 bool "Spreadtrum timer driver" if COMPILE_TEST
454 depends on HAS_IOMEM
455 select TIMER_OF
456 help
457 Enables support for the Spreadtrum timer driver.
458
459config SYS_SUPPORTS_SH_MTU2
460 bool
461
462config SYS_SUPPORTS_SH_TMU
463 bool
464
465config SYS_SUPPORTS_EM_STI
466 bool
467
468config CLKSRC_JCORE_PIT
469 bool "J-Core PIT timer driver" if COMPILE_TEST
470 depends on OF
471 depends on HAS_IOMEM
472 select CLKSRC_MMIO
473 help
474 This enables build of clocksource and clockevent driver for
475 the integrated PIT in the J-Core synthesizable, open source SoC.
476
477config SH_TIMER_CMT
478 bool "Renesas CMT timer driver" if COMPILE_TEST
479 depends on HAS_IOMEM
480 default SYS_SUPPORTS_SH_CMT
481 help
482 This enables build of a clocksource and clockevent driver for
483 the Compare Match Timer (CMT) hardware available in 16/32/48-bit
484 variants on a wide range of Mobile and Automotive SoCs from Renesas.
485
486config SH_TIMER_MTU2
487 bool "Renesas MTU2 timer driver" if COMPILE_TEST
488 depends on HAS_IOMEM
489 default SYS_SUPPORTS_SH_MTU2
490 help
491 This enables build of a clockevent driver for the Multi-Function
492 Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
493 This hardware comes with 16 bit-timer registers.
494
495config RENESAS_OSTM
496 bool "Renesas OSTM timer driver" if COMPILE_TEST
497 select CLKSRC_MMIO
498 help
499 Enables the support for the Renesas OSTM.
500
501config SH_TIMER_TMU
502 bool "Renesas TMU timer driver" if COMPILE_TEST
503 depends on HAS_IOMEM
504 default SYS_SUPPORTS_SH_TMU
505 help
506 This enables build of a clocksource and clockevent driver for
507 the 32-bit Timer Unit (TMU) hardware available on a wide range
508 SoCs from Renesas.
509
510config EM_TIMER_STI
511 bool "Renesas STI timer driver" if COMPILE_TEST
512 depends on HAS_IOMEM
513 default SYS_SUPPORTS_EM_STI
514 help
515 This enables build of a clocksource and clockevent driver for
516 the 48-bit System Timer (STI) hardware available on a SoCs
517 such as EMEV2 from former NEC Electronics.
518
519config CLKSRC_QCOM
520 bool "Qualcomm MSM timer" if COMPILE_TEST
521 depends on ARM
522 select TIMER_OF
523 help
524 This enables the clocksource and the per CPU clockevent driver for the
525 Qualcomm SoCs.
526
527config CLKSRC_VERSATILE
528 bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
529 depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
530 select TIMER_OF
531 default y if MFD_VEXPRESS_SYSREG
532 help
533 This option enables clock source based on free running
534 counter available in the "System Registers" block of
535 ARM Versatile, RealView and Versatile Express reference
536 platforms.
537
538config CLKSRC_MIPS_GIC
539 bool
540 depends on MIPS_GIC
541 select TIMER_OF
542
543config CLKSRC_TANGO_XTAL
544 bool "Clocksource for Tango SoC" if COMPILE_TEST
545 depends on ARM
546 select TIMER_OF
547 select CLKSRC_MMIO
548 help
549 This enables the clocksource for Tango SoC
550
551config CLKSRC_PXA
552 bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
553 depends on HAS_IOMEM
554 select CLKSRC_MMIO
555 help
556 This enables OST0 support available on PXA and SA-11x0
557 platforms.
558
559config H8300_TMR8
560 bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
561 depends on HAS_IOMEM
562 help
563 This enables the 8 bits timer for the H8300 platform.
564
565config H8300_TMR16
566 bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
567 depends on HAS_IOMEM
568 help
569 This enables the 16 bits timer for the H8300 platform with the
570 H83069 cpu.
571
572config H8300_TPU
573 bool "Clocksource for the H8300 platform" if COMPILE_TEST
574 depends on HAS_IOMEM
575 help
576 This enables the clocksource for the H8300 platform with the
577 H8S2678 cpu.
578
579config CLKSRC_IMX_GPT
580 bool "Clocksource using i.MX GPT" if COMPILE_TEST
581 depends on ARM && CLKDEV_LOOKUP
582 select CLKSRC_MMIO
583
584config CLKSRC_IMX_TPM
585 bool "Clocksource using i.MX TPM" if COMPILE_TEST
586 depends on ARM && CLKDEV_LOOKUP
587 select CLKSRC_MMIO
588 help
589 Enable this option to use IMX Timer/PWM Module (TPM) timer as
590 clocksource.
591
592config CLKSRC_ST_LPC
593 bool "Low power clocksource found in the LPC" if COMPILE_TEST
594 select TIMER_OF if OF
595 depends on HAS_IOMEM
596 select CLKSRC_MMIO
597 help
598 Enable this option to use the Low Power controller timer
599 as clocksource.
600
601config ATCPIT100_TIMER
602 bool "ATCPIT100 timer driver"
603 depends on NDS32 || COMPILE_TEST
604 depends on HAS_IOMEM
605 select TIMER_OF
606 default NDS32
607 help
608 This option enables support for the Andestech ATCPIT100 timers.
609
610endmenu