Kconfig 6.26 KB
Newer Older
Jean Delvare's avatar
Jean Delvare committed
1
2
menu "Clock Source drivers"

3
4
5
config CLKSRC_OF
	bool

6
7
config CLKSRC_I8253
	bool
8

9
10
11
config CLKEVT_I8253
	bool

12
13
14
15
config I8253_LOCK
	bool

config CLKBLD_I8253
16
	def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
17

18
19
config CLKSRC_MMIO
	bool
20

21
22
23
config DIGICOLOR_TIMER
	bool

24
25
config DW_APB_TIMER
	bool
26

27
28
config DW_APB_TIMER_OF
	bool
29
	select DW_APB_TIMER
30
	select CLKSRC_OF
31

32
33
34
35
config ROCKCHIP_TIMER
	bool
	select CLKSRC_OF

36
37
config ARMADA_370_XP_TIMER
	bool
38
	select CLKSRC_OF
39

40
41
config MESON6_TIMER
	bool
42
	select CLKSRC_MMIO
43

44
45
46
47
48
config ORION_TIMER
	select CLKSRC_OF
	select CLKSRC_MMIO
	bool

49
config SUN4I_TIMER
50
	select CLKSRC_MMIO
51
52
	bool

53
54
55
56
config SUN5I_HSTIMER
	select CLKSRC_MMIO
	bool

57
58
59
config TEGRA_TIMER
	bool

60
61
62
config VT8500_TIMER
	bool

63
64
65
config CADENCE_TTC_TIMER
	bool

66
67
68
69
70
config ASM9260_TIMER
	bool
	select CLKSRC_MMIO
	select CLKSRC_OF

71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
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.

86
87
config CLKSRC_DBX500_PRCMU
	bool "Clocksource PRCMU Timer"
88
	depends on UX500_SOC_DB8500
89
90
91
92
93
94
	default y
	help
	  Use the always on PRCMU Timer as clocksource

config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
	bool "Clocksource PRCMU Timer sched_clock"
95
	depends on (CLKSRC_DBX500_PRCMU && !CLKSRC_NOMADIK_MTU_SCHED_CLOCK)
96
97
98
	default y
	help
	  Use the always on PRCMU Timer as sched_clock
Marc Zyngier's avatar
Marc Zyngier committed
99

100
101
102
config CLKSRC_EFM32
	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
	depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
103
	select CLKSRC_MMIO
104
105
106
107
108
	default ARCH_EFM32
	help
	  Support to use the timers of EFM32 SoCs as clock source and clock
	  event device.

109
110
111
112
113
config CLKSRC_LPC32XX
	bool
	select CLKSRC_MMIO
	select CLKSRC_OF

114
config CLKSRC_STM32
115
116
	bool "Clocksource for STM32 SoCs" if !ARCH_STM32
	depends on OF && ARM && (ARCH_STM32 || COMPILE_TEST)
117
118
	select CLKSRC_MMIO

119
120
config ARM_ARCH_TIMER
	bool
121
	select CLKSRC_OF if OF
James Hogan's avatar
James Hogan committed
122

123
124
125
config ARM_ARCH_TIMER_EVTSTREAM
	bool "Support for ARM architected timer event stream generation"
	default y if ARM_ARCH_TIMER
126
	depends on ARM_ARCH_TIMER
127
128
129
130
131
132
133
134
135
136
137
138
	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.

139
140
141
142
143
144
145
146
147
148
149
150
151
config ARM_GLOBAL_TIMER
	bool
	select CLKSRC_OF if OF
	help
	  This options enables support for the ARM global timer unit

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

152
153
154
155
156
157
158
config ARMV7M_SYSTICK
	bool
	select CLKSRC_OF if OF
	select CLKSRC_MMIO
	help
	  This options enables support for the ARMv7M system timer unit

159
160
161
162
config ATMEL_PIT
	select CLKSRC_OF if OF
	def_bool SOC_AT91SAM9 || SOC_SAMA5

163
164
165
config ATMEL_ST
	bool
	select CLKSRC_OF
166
	select MFD_SYSCON
167

James Hogan's avatar
James Hogan committed
168
169
170
171
config CLKSRC_METAG_GENERIC
	def_bool y if METAG
	help
	  This option enables support for the Meta per-thread timers.
172
173
174

config CLKSRC_EXYNOS_MCT
	def_bool y if ARCH_EXYNOS
175
	depends on !ARM64
176
177
	help
	  Support for Multi Core Timer controller on Exynos SoCs.
178

179
config CLKSRC_SAMSUNG_PWM
180
	bool
181
182
183
184
185
	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.
186

187
188
189
190
191
config FSL_FTM_TIMER
	bool
	help
	  Support for Freescale FlexTimer Module (FTM) timer.

192
193
194
195
config VF_PIT_TIMER
	bool
	help
	  Support for Period Interrupt Timer on Freescale Vybrid Family SoCs.
196
197
198
199

config SYS_SUPPORTS_SH_CMT
        bool

200
201
202
203
204
config MTK_TIMER
	select CLKSRC_OF
	select CLKSRC_MMIO
	bool

205
206
207
208
209
210
211
212
213
214
215
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
216
	depends on GENERIC_CLOCKEVENTS
217
	depends on HAS_IOMEM
218
219
220
221
222
223
224
225
	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
226
	depends on GENERIC_CLOCKEVENTS
227
	depends on HAS_IOMEM
228
229
230
	default SYS_SUPPORTS_SH_MTU2
	help
	  This enables build of a clockevent driver for the Multi-Function
231
	  Timer Pulse Unit 2 (MTU2) hardware available on SoCs from Renesas.
232
233
234
235
	  This hardware comes with 16 bit-timer registers.

config SH_TIMER_TMU
	bool "Renesas TMU timer driver" if COMPILE_TEST
236
	depends on GENERIC_CLOCKEVENTS
237
	depends on HAS_IOMEM
238
239
240
241
242
243
244
245
	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
246
	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
247
248
249
250
251
	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.
252

253
254
config CLKSRC_QCOM
	bool
255
256
257

config CLKSRC_VERSATILE
	bool "ARM Versatile (Express) reference platforms clock source"
258
	depends on PLAT_VERSATILE && GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET
259
260
261
262
263
264
265
	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.
Jean Delvare's avatar
Jean Delvare committed
266

267
268
269
config CLKSRC_MIPS_GIC
	bool
	depends on MIPS_GIC
270
	select CLKSRC_OF
271

272
273
274
275
276
277
config CLKSRC_PXA
	def_bool y if ARCH_PXA || ARCH_SA1100
	select CLKSRC_OF if USE_OF
	help
	  This enables OST0 support available on PXA and SA-11x0
	  platforms.
Jean Delvare's avatar
Jean Delvare committed
278
endmenu