[deliverable/linux.git] / drivers / clocksource / Kconfig

menu "Clock Source drivers"
	depends on !ARCH_USES_GETTIMEOFFSET

config CLKSRC_OF
	bool
	select CLKSRC_PROBE

config CLKSRC_ACPI
	bool
	select CLKSRC_PROBE

config CLKSRC_PROBE
	bool

config CLKSRC_I8253
	bool

config CLKEVT_I8253
	bool

config I8253_LOCK
	bool

config CLKBLD_I8253
	def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK

config CLKSRC_MMIO
	bool

config DIGICOLOR_TIMER
	bool

config DW_APB_TIMER
	bool

config DW_APB_TIMER_OF
	bool
	select DW_APB_TIMER
	select CLKSRC_OF

config ROCKCHIP_TIMER
	bool
	select CLKSRC_OF

config ARMADA_370_XP_TIMER
	bool
	select CLKSRC_OF

config MESON6_TIMER
	bool
	select CLKSRC_MMIO

config ORION_TIMER
	select CLKSRC_OF
	select CLKSRC_MMIO
	bool

config SUN4I_TIMER
	select CLKSRC_MMIO
	bool

config SUN5I_HSTIMER
	select CLKSRC_MMIO
	bool

config TEGRA_TIMER
	bool

config VT8500_TIMER
	bool

config CADENCE_TTC_TIMER
	bool

config ASM9260_TIMER
	bool
	select CLKSRC_MMIO
	select CLKSRC_OF

config CLKSRC_NOMADIK_MTU
	bool
	depends on (ARCH_NOMADIK || ARCH_U8500)
	select CLKSRC_MMIO
	help
	  Support for Multi Timer Unit. MTU provides access
	  to multiple interrupt generating programmable
	  32-bit free running decrementing counters.

config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
	bool
	depends on CLKSRC_NOMADIK_MTU
	help
	  Use the Multi Timer Unit as the sched_clock.

config CLKSRC_DBX500_PRCMU
	bool "Clocksource PRCMU Timer"
	depends on UX500_SOC_DB8500
	default y
	help
	  Use the always on PRCMU Timer as clocksource

config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
	bool "Clocksource PRCMU Timer sched_clock"
	depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
	default y
	help
	  Use the always on PRCMU Timer as sched_clock

config CLKSRC_EFM32
	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
	depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
	select CLKSRC_MMIO
	default ARCH_EFM32
	help
	  Support to use the timers of EFM32 SoCs as clock source and clock
	  event device.

config CLKSRC_LPC32XX
	bool
	select CLKSRC_MMIO
	select CLKSRC_OF

config CLKSRC_PISTACHIO
	bool
	select CLKSRC_OF

config CLKSRC_TI_32K
	bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
	depends on GENERIC_SCHED_CLOCK
	select CLKSRC_OF if OF
	help
	  This option enables support for Texas Instruments 32.768 Hz clocksource
	  available on many OMAP-like platforms.

config CLKSRC_STM32
	bool "Clocksource for STM32 SoCs" if !ARCH_STM32
	depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
	select CLKSRC_MMIO

config ARM_ARCH_TIMER
	bool
	select CLKSRC_OF if OF
	select CLKSRC_ACPI if ACPI

config ARM_ARCH_TIMER_EVTSTREAM
	bool "Support for ARM architected timer event stream generation"
	default y if ARM_ARCH_TIMER
	depends on ARM_ARCH_TIMER
	help
	  This option enables support for event stream generation based on
	  the ARM architected timer. It is used for waking up CPUs executing
	  the wfe instruction at a frequency represented as a power-of-2
	  divisor of the clock rate.
	  The main use of the event stream is wfe-based timeouts of userspace
	  locking implementations. It might also be useful for imposing timeout
	  on wfe to safeguard against any programming errors in case an expected
	  event is not generated.
	  This must be disabled for hardware validation purposes to detect any
	  hardware anomalies of missing events.

config ARM_GLOBAL_TIMER
	bool
	select CLKSRC_OF if OF
	help
	  This options enables support for the ARM global timer unit

config ARM_TIMER_SP804
	bool "Support for Dual Timer SP804 module"
	depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
	select CLKSRC_MMIO
	select CLKSRC_OF if OF

config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
	bool
	depends on ARM_GLOBAL_TIMER
	default y
	help
	 Use ARM global timer clock source as sched_clock

config ARMV7M_SYSTICK
	bool
	select CLKSRC_OF if OF
	select CLKSRC_MMIO
	help
	  This options enables support for the ARMv7M system timer unit

config ATMEL_PIT
	select CLKSRC_OF if OF
	def_bool SOC_AT91SAM9 || SOC_SAMA5

config ATMEL_ST
	bool
	select CLKSRC_OF
	select MFD_SYSCON

config CLKSRC_METAG_GENERIC
	def_bool y if METAG
	help
	  This option enables support for the Meta per-thread timers.

config CLKSRC_EXYNOS_MCT
	def_bool y if ARCH_EXYNOS
	depends on !ARM64
	help
	  Support for Multi Core Timer controller on Exynos SoCs.

config CLKSRC_SAMSUNG_PWM
	bool
	help
	  This is a new clocksource driver for the PWM timer found in
	  Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
	  for all devicetree enabled platforms. This driver will be
	  needed only on systems that do not have the Exynos MCT available.

config FSL_FTM_TIMER
	bool
	help
	  Support for Freescale FlexTimer Module (FTM) timer.

config VF_PIT_TIMER
	bool
	help
	  Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.

config SYS_SUPPORTS_SH_CMT
        bool

config MTK_TIMER
	select CLKSRC_OF
	select CLKSRC_MMIO
	bool

config SYS_SUPPORTS_SH_MTU2
        bool

config SYS_SUPPORTS_SH_TMU
        bool

config SYS_SUPPORTS_EM_STI
        bool

config SH_TIMER_CMT
	bool "Renesas CMT timer driver" if COMPILE_TEST
	depends on GENERIC_CLOCKEVENTS
	depends on HAS_IOMEM
	default SYS_SUPPORTS_SH_CMT
	help
	  This enables build of a clocksource and clockevent driver for
	  the Compare Match Timer (CMT) hardware available in 16/32/48-bit
	  variants on a wide range of Mobile and Automotive SoCs from Renesas.

config SH_TIMER_MTU2
	bool "Renesas MTU2 timer driver" if COMPILE_TEST
	depends on GENERIC_CLOCKEVENTS
	depends on HAS_IOMEM
	default SYS_SUPPORTS_SH_MTU2
	help
	  This enables build of a clockevent driver for the Multi-Function
	  Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
	  This hardware comes with 16 bit-timer registers.

config SH_TIMER_TMU
	bool "Renesas TMU timer driver" if COMPILE_TEST
	depends on GENERIC_CLOCKEVENTS
	depends on HAS_IOMEM
	default SYS_SUPPORTS_SH_TMU
	help
	  This enables build of a clocksource and clockevent driver for
	  the 32-bit Timer Unit (TMU) hardware available on a wide range
	  SoCs from Renesas.

config EM_TIMER_STI
	bool "Renesas STI timer driver" if COMPILE_TEST
	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
	default SYS_SUPPORTS_EM_STI
	help
	  This enables build of a clocksource and clockevent driver for
	  the 48-bit System Timer (STI) hardware available on a SoCs
	  such as EMEV2 from former NEC Electronics.

config CLKSRC_QCOM
	bool

config CLKSRC_VERSATILE
	bool "ARM Versatile (Express) reference platforms clock source"
	depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
	select CLKSRC_OF
	default y if MFD_VEXPRESS_SYSREG
	help
	  This option enables clock source based on free running
	  counter available in the "System Registers" block of
	  ARM Versatile, RealView and Versatile Express reference
	  platforms.

config CLKSRC_MIPS_GIC
	bool
	depends on MIPS_GIC
	select CLKSRC_OF

config CLKSRC_TANGO_XTAL
	bool
	select CLKSRC_OF

config CLKSRC_PXA
	def_bool y if ARCH_PXA || ARCH_SA1100
	select CLKSRC_OF if OF
	help
	  This enables OST0 support available on PXA and SA-11x0
	  platforms.

config H8300_TMR16
        bool

config H8300_TPU
        bool

config CLKSRC_IMX_GPT
	bool "Clocksource using i.MX GPT" if COMPILE_TEST
	depends on ARM && CLKDEV_LOOKUP
	select CLKSRC_MMIO

config CLKSRC_ST_LPC
	bool
	depends on ARCH_STI
	select CLKSRC_OF if OF
	help
	  Enable this option to use the Low Power controller timer
	  as clocksource.

endmenu
Commit	Line	Data
58394271	1	menu "Clock Source drivers"
3da6d49e	2	depends on !ARCH_USES_GETTIMEOFFSET
58394271	3
ae278a93 SW	4	config CLKSRC_OF
ae278a93 SW	5	bool
aad83b15 MZ	6	select CLKSRC_PROBE
	7
	8	config CLKSRC_ACPI
	9	bool
	10	select CLKSRC_PROBE
	11
	12	config CLKSRC_PROBE
	13	bool
ae278a93	14
89c0b8e2 RK	15	config CLKSRC_I8253
89c0b8e2 RK	16	bool
442c8176	17
e6220bdc TG	18	config CLKEVT_I8253
	19	bool
	20
15f304b6 RB	21	config I8253_LOCK
	22	bool
	23
	24	config CLKBLD_I8253
e6220bdc	25	def_bool y if CLKSRC_I8253 \|\| CLKEVT_I8253 \|\| I8253_LOCK
15f304b6	26
442c8176 RK	27	config CLKSRC_MMIO
442c8176 RK	28	bool
06c3df49	29
9b8bb773 BS	30	config DIGICOLOR_TIMER
	31	bool
	32
06c3df49 JI	33	config DW_APB_TIMER
06c3df49 JI	34	bool
489bccea	35
cfda5901 DN	36	config DW_APB_TIMER_OF
cfda5901 DN	37	bool
1b4eca0f	38	select DW_APB_TIMER
10021488	39	select CLKSRC_OF
cfda5901	40
468b8c4c DL	41	config ROCKCHIP_TIMER
	42	bool
	43	select CLKSRC_OF
	44
6fe9cbd1 GC	45	config ARMADA_370_XP_TIMER
6fe9cbd1 GC	46	bool
7b0dd72a	47	select CLKSRC_OF
6fe9cbd1	48
e4a6b378 CC	49	config MESON6_TIMER
e4a6b378 CC	50	bool
7b6b0a45	51	select CLKSRC_MMIO
e4a6b378	52
0c1dcfd5 SH	53	config ORION_TIMER
	54	select CLKSRC_OF
	55	select CLKSRC_MMIO
	56	bool
	57
119fd635	58	config SUN4I_TIMER
71c568c0	59	select CLKSRC_MMIO
b2ac5d75 MR	60	bool
b2ac5d75 MR	61
67905540 MR	62	config SUN5I_HSTIMER
	63	select CLKSRC_MMIO
	64	bool
	65
910978e7 TR	66	config TEGRA_TIMER
	67	bool
	68
ff7ec345 TP	69	config VT8500_TIMER
	70	bool
	71
4f0f234f MS	72	config CADENCE_TTC_TIMER
	73	bool
	74
a8b1b9fc DL	75	config ASM9260_TIMER
	76	bool
	77	select CLKSRC_MMIO
	78	select CLKSRC_OF
	79
694e33a7 LW	80	config CLKSRC_NOMADIK_MTU
	81	bool
	82	depends on (ARCH_NOMADIK \|\| ARCH_U8500)
	83	select CLKSRC_MMIO
	84	help
	85	Support for Multi Timer Unit. MTU provides access
	86	to multiple interrupt generating programmable
	87	32-bit free running decrementing counters.
	88
	89	config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
	90	bool
	91	depends on CLKSRC_NOMADIK_MTU
	92	help
	93	Use the Multi Timer Unit as the sched_clock.
	94
489bccea MW	95	config CLKSRC_DBX500_PRCMU
489bccea MW	96	bool "Clocksource PRCMU Timer"
29746f48	97	depends on UX500_SOC_DB8500
489bccea MW	98	default y
	99	help
	100	Use the always on PRCMU Timer as clocksource
	101
	102	config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
	103	bool "Clocksource PRCMU Timer sched_clock"
694e33a7	104	depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
489bccea MW	105	default y
	106	help
	107	Use the always on PRCMU Timer as sched_clock
985c0679	108
9c9b7818 UKK	109	config CLKSRC_EFM32
	110	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
	111	depends on OF && ARM && (ARCH_EFM32 \|\| COMPILE_TEST)
09ca2757	112	select CLKSRC_MMIO
9c9b7818 UKK	113	default ARCH_EFM32
	114	help
	115	Support to use the timers of EFM32 SoCs as clock source and clock
	116	event device.
	117
050dd322 JE	118	config CLKSRC_LPC32XX
	119	bool
	120	select CLKSRC_MMIO
	121	select CLKSRC_OF
	122
84583983 EG	123	config CLKSRC_PISTACHIO
	124	bool
	125	select CLKSRC_OF
	126
fe851f56 FB	127	config CLKSRC_TI_32K
fe851f56 FB	128	bool "Texas Instruments 32.768 Hz Clocksource" if COMPILE_TEST
dfedaf10	129	depends on GENERIC_SCHED_CLOCK
fe851f56 FB	130	select CLKSRC_OF if OF
	131	help
	132	This option enables support for Texas Instruments 32.768 Hz clocksource
	133	available on many OMAP-like platforms.
	134
e37e4593	135	config CLKSRC_STM32
1cb6c215 PG	136	bool "Clocksource for STM32 SoCs" if !ARCH_STM32
1cb6c215 PG	137	depends on OF && ARM && (ARCH_STM32 \|\| COMPILE_TEST)
e37e4593 MC	138	select CLKSRC_MMIO
e37e4593 MC	139
8a4da6e3 MR	140	config ARM_ARCH_TIMER
8a4da6e3 MR	141	bool
0583fe47	142	select CLKSRC_OF if OF
ae281cbd	143	select CLKSRC_ACPI if ACPI
a2c5d4ed	144
037f6377 WD	145	config ARM_ARCH_TIMER_EVTSTREAM
	146	bool "Support for ARM architected timer event stream generation"
	147	default y if ARM_ARCH_TIMER
77f7ce9a	148	depends on ARM_ARCH_TIMER
037f6377 WD	149	help
	150	This option enables support for event stream generation based on
	151	the ARM architected timer. It is used for waking up CPUs executing
	152	the wfe instruction at a frequency represented as a power-of-2
	153	divisor of the clock rate.
	154	The main use of the event stream is wfe-based timeouts of userspace
	155	locking implementations. It might also be useful for imposing timeout
	156	on wfe to safeguard against any programming errors in case an expected
	157	event is not generated.
	158	This must be disabled for hardware validation purposes to detect any
	159	hardware anomalies of missing events.
	160
c1b40e44 SM	161	config ARM_GLOBAL_TIMER
	162	bool
	163	select CLKSRC_OF if OF
	164	help
	165	This options enables support for the ARM global timer unit
	166
0b7402dc SH	167	config ARM_TIMER_SP804
0b7402dc SH	168	bool "Support for Dual Timer SP804 module"
002af195	169	depends on GENERIC_SCHED_CLOCK && CLKDEV_LOOKUP
0b7402dc SH	170	select CLKSRC_MMIO
	171	select CLKSRC_OF if OF
	172
c1b40e44 SM	173	config CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
	174	bool
	175	depends on ARM_GLOBAL_TIMER
	176	default y
	177	help
	178	Use ARM global timer clock source as sched_clock
	179
4958ebb3 MC	180	config ARMV7M_SYSTICK
	181	bool
	182	select CLKSRC_OF if OF
	183	select CLKSRC_MMIO
	184	help
	185	This options enables support for the ARMv7M system timer unit
	186
b052ff30 MR	187	config ATMEL_PIT
	188	select CLKSRC_OF if OF
	189	def_bool SOC_AT91SAM9 \|\| SOC_SAMA5
	190
b53cdd03 AB	191	config ATMEL_ST
	192	bool
	193	select CLKSRC_OF
7ab7ef74	194	select MFD_SYSCON
b53cdd03	195
a2c5d4ed JH	196	config CLKSRC_METAG_GENERIC
	197	def_bool y if METAG
	198	help
	199	This option enables support for the Meta per-thread timers.
6938d75a TA	200
	201	config CLKSRC_EXYNOS_MCT
	202	def_bool y if ARCH_EXYNOS
3252a646	203	depends on !ARM64
6938d75a TA	204	help
6938d75a TA	205	Support for Multi Core Timer controller on Exynos SoCs.
241a9871	206
f1189989	207	config CLKSRC_SAMSUNG_PWM
77d84434	208	bool
f1189989 TF	209	help
	210	This is a new clocksource driver for the PWM timer found in
	211	Samsung S3C, S5P and Exynos SoCs, replacing an earlier driver
	212	for all devicetree enabled platforms. This driver will be
	213	needed only on systems that do not have the Exynos MCT available.
c1967249	214
2529c3a3 XL	215	config FSL_FTM_TIMER
	216	bool
	217	help
	218	Support for Freescale FlexTimer Module (FTM) timer.
	219
c1967249 JL	220	config VF_PIT_TIMER
	221	bool
	222	help
	223	Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
fd3f1270 MD	224
	225	config SYS_SUPPORTS_SH_CMT
	226	bool
	227
ecb3530d MB	228	config MTK_TIMER
	229	select CLKSRC_OF
	230	select CLKSRC_MMIO
	231	bool
	232
fd3f1270 MD	233	config SYS_SUPPORTS_SH_MTU2
	234	bool
	235
	236	config SYS_SUPPORTS_SH_TMU
	237	bool
	238
	239	config SYS_SUPPORTS_EM_STI
	240	bool
	241
	242	config SH_TIMER_CMT
	243	bool "Renesas CMT timer driver" if COMPILE_TEST
87291a92	244	depends on GENERIC_CLOCKEVENTS
11bc26fe	245	depends on HAS_IOMEM
fd3f1270 MD	246	default SYS_SUPPORTS_SH_CMT
	247	help
	248	This enables build of a clocksource and clockevent driver for
	249	the Compare Match Timer (CMT) hardware available in 16/32/48-bit
	250	variants on a wide range of Mobile and Automotive SoCs from Renesas.
	251
	252	config SH_TIMER_MTU2
	253	bool "Renesas MTU2 timer driver" if COMPILE_TEST
87291a92	254	depends on GENERIC_CLOCKEVENTS
11bc26fe	255	depends on HAS_IOMEM
fd3f1270 MD	256	default SYS_SUPPORTS_SH_MTU2
	257	help
	258	This enables build of a clockevent driver for the Multi-Function
7e139187	259	Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
fd3f1270 MD	260	This hardware comes with 16 bit-timer registers.
	261
	262	config SH_TIMER_TMU
	263	bool "Renesas TMU timer driver" if COMPILE_TEST
87291a92	264	depends on GENERIC_CLOCKEVENTS
11bc26fe	265	depends on HAS_IOMEM
fd3f1270 MD	266	default SYS_SUPPORTS_SH_TMU
	267	help
	268	This enables build of a clocksource and clockevent driver for
	269	the 32-bit Timer Unit (TMU) hardware available on a wide range
	270	SoCs from Renesas.
	271
	272	config EM_TIMER_STI
	273	bool "Renesas STI timer driver" if COMPILE_TEST
40c96312	274	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
fd3f1270 MD	275	default SYS_SUPPORTS_EM_STI
	276	help
	277	This enables build of a clocksource and clockevent driver for
	278	the 48-bit System Timer (STI) hardware available on a SoCs
	279	such as EMEV2 from former NEC Electronics.
dfc25e45	280
3f8e8cee KG	281	config CLKSRC_QCOM
3f8e8cee KG	282	bool
220e2a8d PM	283
	284	config CLKSRC_VERSATILE
	285	bool "ARM Versatile (Express) reference platforms clock source"
ff37015b	286	depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
220e2a8d PM	287	select CLKSRC_OF
	288	default y if MFD_VEXPRESS_SYSREG
	289	help
	290	This option enables clock source based on free running
	291	counter available in the "System Registers" block of
	292	ARM Versatile, RealView and Versatile Express reference
	293	platforms.
58394271	294
fa5635a2 AB	295	config CLKSRC_MIPS_GIC
	296	bool
	297	depends on MIPS_GIC
e12aa828	298	select CLKSRC_OF
fa5635a2	299
ccd63ce4 MG	300	config CLKSRC_TANGO_XTAL
	301	bool
	302	select CLKSRC_OF
	303
e074ff86 DES	304	config CLKSRC_PXA
e074ff86 DES	305	def_bool y if ARCH_PXA \|\| ARCH_SA1100
02760b11	306	select CLKSRC_OF if OF
e074ff86 DES	307	help
	308	This enables OST0 support available on PXA and SA-11x0
	309	platforms.
618b902d YS	310
	311	config H8300_TMR16
	312	bool
	313
	314	config H8300_TPU
	315	bool
	316
bea5af41 SG	317	config CLKSRC_IMX_GPT
	318	bool "Clocksource using i.MX GPT" if COMPILE_TEST
	319	depends on ARM && CLKDEV_LOOKUP
	320	select CLKSRC_MMIO
	321
70bef01c LJ	322	config CLKSRC_ST_LPC
	323	bool
	324	depends on ARCH_STI
	325	select CLKSRC_OF if OF
	326	help
	327	Enable this option to use the Low Power controller timer
	328	as clocksource.
	329
58394271	330	endmenu