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

menu "Clock Source drivers"

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_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

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