xref: /linux/drivers/clocksource/Kconfig (revision db6d8d5fdf9537641c76ba7f32e02b4bcc600972)
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 ARM_ARCH_TIMER
286	bool
287	select CLKSRC_OF if OF
288	select CLKSRC_ACPI if ACPI
289
290config 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
308config 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
318config 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
325config 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
331config 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
338config 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
345config ATMEL_PIT
346	select CLKSRC_OF if OF
347	def_bool SOC_AT91SAM9 || SOC_SAMA5
348
349config 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
357config CLKSRC_METAG_GENERIC
358	def_bool y if METAG
359	help
360	  This option enables support for the Meta per-thread timers.
361
362config 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
368config 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
378config 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
386config VF_PIT_TIMER
387	bool
388	select CLKSRC_MMIO
389	help
390	  Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
391
392config 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
400config SYS_SUPPORTS_SH_CMT
401        bool
402
403config 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
411config SYS_SUPPORTS_SH_MTU2
412        bool
413
414config SYS_SUPPORTS_SH_TMU
415        bool
416
417config SYS_SUPPORTS_EM_STI
418        bool
419
420config SH_TIMER_CMT
421	bool "Renesas CMT timer driver" if COMPILE_TEST
422	depends on GENERIC_CLOCKEVENTS
423	depends on HAS_IOMEM
424	default SYS_SUPPORTS_SH_CMT
425	help
426	  This enables build of a clocksource and clockevent driver for
427	  the Compare Match Timer (CMT) hardware available in 16/32/48-bit
428	  variants on a wide range of Mobile and Automotive SoCs from Renesas.
429
430config SH_TIMER_MTU2
431	bool "Renesas MTU2 timer driver" if COMPILE_TEST
432	depends on GENERIC_CLOCKEVENTS
433	depends on HAS_IOMEM
434	default SYS_SUPPORTS_SH_MTU2
435	help
436	  This enables build of a clockevent driver for the Multi-Function
437	  Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
438	  This hardware comes with 16 bit-timer registers.
439
440config SH_TIMER_TMU
441	bool "Renesas TMU timer driver" if COMPILE_TEST
442	depends on GENERIC_CLOCKEVENTS
443	depends on HAS_IOMEM
444	default SYS_SUPPORTS_SH_TMU
445	help
446	  This enables build of a clocksource and clockevent driver for
447	  the 32-bit Timer Unit (TMU) hardware available on a wide range
448	  SoCs from Renesas.
449
450config EM_TIMER_STI
451	bool "Renesas STI timer driver" if COMPILE_TEST
452	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
453	default SYS_SUPPORTS_EM_STI
454	help
455	  This enables build of a clocksource and clockevent driver for
456	  the 48-bit System Timer (STI) hardware available on a SoCs
457	  such as EMEV2 from former NEC Electronics.
458
459config CLKSRC_QCOM
460	bool "Qualcomm MSM timer" if COMPILE_TEST
461	depends on ARM
462	select CLKSRC_OF
463	help
464	  This enables the clocksource and the per CPU clockevent driver for the
465	  Qualcomm SoCs.
466
467config CLKSRC_VERSATILE
468	bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST
469	depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
470	select CLKSRC_OF
471	default y if MFD_VEXPRESS_SYSREG
472	help
473	  This option enables clock source based on free running
474	  counter available in the "System Registers" block of
475	  ARM Versatile, RealView and Versatile Express reference
476	  platforms.
477
478config CLKSRC_MIPS_GIC
479	bool
480	depends on MIPS_GIC
481	select CLKSRC_OF
482
483config CLKSRC_TANGO_XTAL
484	bool "Clocksource for Tango SoC" if COMPILE_TEST
485	depends on ARM
486	select CLKSRC_OF
487	select CLKSRC_MMIO
488	help
489	  This enables the clocksource for Tango SoC
490
491config CLKSRC_PXA
492	bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
493	depends on GENERIC_CLOCKEVENTS
494	depends on HAS_IOMEM
495	select CLKSRC_MMIO
496	help
497	  This enables OST0 support available on PXA and SA-11x0
498	  platforms.
499
500config H8300_TMR8
501        bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
502        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
503	help
504	  This enables the 8 bits timer for the H8300 platform.
505
506config H8300_TMR16
507        bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
508        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
509	help
510	  This enables the 16 bits timer for the H8300 platform with the
511	  H83069 cpu.
512
513config H8300_TPU
514        bool "Clocksource for the H8300 platform" if COMPILE_TEST
515        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
516	help
517	  This enables the clocksource for the H8300 platform with the
518	  H8S2678 cpu.
519
520config CLKSRC_IMX_GPT
521	bool "Clocksource using i.MX GPT" if COMPILE_TEST
522	depends on ARM && CLKDEV_LOOKUP
523	select CLKSRC_MMIO
524
525config CLKSRC_ST_LPC
526	bool "Low power clocksource found in the LPC" if COMPILE_TEST
527	select CLKSRC_OF if OF
528	depends on HAS_IOMEM
529	select CLKSRC_MMIO
530	help
531	  Enable this option to use the Low Power controller timer
532	  as clocksource.
533
534endmenu
535