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David Brownell7be2c7c2007-02-10 01:46:02 -08001#
Alessandro Zummoc58411e2006-03-27 01:16:34 -08002# RTC class/drivers configuration
3#
4
5config RTC_LIB
John Stultzb4d246b2011-04-29 15:03:11 -07006 bool
Alessandro Zummo0c86edc2006-03-27 01:16:37 -08007
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07008menuconfig RTC_CLASS
John Stultzb4d246b2011-04-29 15:03:11 -07009 bool "Real Time Clock"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080010 default n
Al Viro33694652011-08-18 20:11:59 +010011 depends on !S390 && !UML
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080012 select RTC_LIB
13 help
14 Generic RTC class support. If you say yes here, you will
15 be allowed to plug one or more RTCs to your system. You will
Adrian Bunk27ae4102006-06-30 18:18:41 +020016 probably want to enable one or more of the interfaces below.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080017
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070018if RTC_CLASS
19
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080020config RTC_HCTOSYS
David Brownell7ca1d482007-05-08 00:33:42 -070021 bool "Set system time from RTC on startup and resume"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080022 default y
23 help
David Brownell7ca1d482007-05-08 00:33:42 -070024 If you say yes here, the system time (wall clock) will be set using
25 the value read from a specified RTC device. This is useful to avoid
26 unnecessary fsck runs at boot time, and to network better.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080027
Jason Gunthorpe023f3332012-12-17 14:30:53 -070028config RTC_SYSTOHC
29 bool "Set the RTC time based on NTP synchronization"
30 default y
31 help
32 If you say yes here, the system time (wall clock) will be stored
33 in the RTC specified by RTC_HCTOSYS_DEVICE approximately every 11
34 minutes if userspace reports synchronized NTP status.
35
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080036config RTC_HCTOSYS_DEVICE
David Brownell7ca1d482007-05-08 00:33:42 -070037 string "RTC used to set the system time"
Jason Gunthorpe023f3332012-12-17 14:30:53 -070038 depends on RTC_HCTOSYS = y || RTC_SYSTOHC = y
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080039 default "rtc0"
40 help
David Brownell7ca1d482007-05-08 00:33:42 -070041 The RTC device that will be used to (re)initialize the system
Alessandro Zummoae64d162009-01-06 14:42:17 -080042 clock, usually rtc0. Initialization is done when the system
43 starts up, and when it resumes from a low power state. This
David Brownell779d2082007-11-14 16:58:29 -080044 device should record time in UTC, since the kernel won't do
45 timezone correction.
David Brownell7ca1d482007-05-08 00:33:42 -070046
David Brownell55ff1ab2007-07-21 04:37:56 -070047 The driver for this RTC device must be loaded before late_initcall
48 functions run, so it must usually be statically linked.
49
David Brownell7ca1d482007-05-08 00:33:42 -070050 This clock should be battery-backed, so that it reads the correct
Alessandro Zummoae64d162009-01-06 14:42:17 -080051 time when the system boots from a power-off state. Otherwise, your
David Brownell7ca1d482007-05-08 00:33:42 -070052 system will need an external clock source (like an NTP server).
53
54 If the clock you specify here is not battery backed, it may still
55 be useful to reinitialize system time when resuming from system
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -080056 sleep states. Do not specify an RTC here unless it stays powered
David Brownell7ca1d482007-05-08 00:33:42 -070057 during all this system's supported sleep states.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080058
David Brownell9e86ecb2006-09-30 23:28:14 -070059config RTC_DEBUG
60 bool "RTC debug support"
David Brownell9e86ecb2006-09-30 23:28:14 -070061 help
62 Say yes here to enable debugging support in the RTC framework
63 and individual RTC drivers.
64
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080065comment "RTC interfaces"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080066
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080067config RTC_INTF_SYSFS
David Brownelle40659c2007-05-16 22:11:15 -070068 boolean "/sys/class/rtc/rtcN (sysfs)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070069 depends on SYSFS
Kevin Hilman8dc08392012-10-10 15:54:06 -070070 default RTC_CLASS
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080071 help
David Brownell9e86ecb2006-09-30 23:28:14 -070072 Say yes here if you want to use your RTCs using sysfs interfaces,
73 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080074
Alessandro Zummoae64d162009-01-06 14:42:17 -080075 If unsure, say Y.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080076
Alessandro Zummo728a2942006-03-27 01:16:40 -080077config RTC_INTF_PROC
Kim, Milo92589c92012-10-04 17:13:45 -070078 boolean "/proc/driver/rtc (procfs for rtcN)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070079 depends on PROC_FS
Kevin Hilman8dc08392012-10-10 15:54:06 -070080 default RTC_CLASS
Alessandro Zummo728a2942006-03-27 01:16:40 -080081 help
Kim, Milo92589c92012-10-04 17:13:45 -070082 Say yes here if you want to use your system clock RTC through
83 the proc interface, /proc/driver/rtc.
84 Other RTCs will not be available through that API.
85 If there is no RTC for the system clock, then the first RTC(rtc0)
86 is used by default.
Alessandro Zummo728a2942006-03-27 01:16:40 -080087
Alessandro Zummoae64d162009-01-06 14:42:17 -080088 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -080089
Alessandro Zummoe8242902006-03-27 01:16:41 -080090config RTC_INTF_DEV
David Brownelle40659c2007-05-16 22:11:15 -070091 boolean "/dev/rtcN (character devices)"
Kevin Hilman8dc08392012-10-10 15:54:06 -070092 default RTC_CLASS
Alessandro Zummoe8242902006-03-27 01:16:41 -080093 help
David Brownell9e86ecb2006-09-30 23:28:14 -070094 Say yes here if you want to use your RTCs using the /dev
95 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -080096 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -080097
Alessandro Zummoae64d162009-01-06 14:42:17 -080098 You may want to set up a symbolic link so one of these
99 can be accessed as /dev/rtc, which is a name
100 expected by "hwclock" and some other programs. Recent
101 versions of "udev" are known to set up the symlink for you.
102
103 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -0800104
John Stultz6e57b1d2011-02-11 17:45:40 -0800105config RTC_INTF_DEV_UIE_EMUL
106 bool "RTC UIE emulation on dev interface"
107 depends on RTC_INTF_DEV
108 help
109 Provides an emulation for RTC_UIE if the underlying rtc chip
110 driver does not expose RTC_UIE ioctls. Those requests generate
111 once-per-second update interrupts, used for synchronization.
112
113 The emulation code will read the time from the hardware
114 clock several times per second, please enable this option
115 only if you know that you really need it.
116
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700117config RTC_DRV_TEST
118 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700119 help
120 If you say yes here you get support for the
121 RTC test driver. It's a software RTC which can be
122 used to test the RTC subsystem APIs. It gets
123 the time from the system clock.
124 You want this driver only if you are doing development
125 on the RTC subsystem. Please read the source code
126 for further details.
127
128 This driver can also be built as a module. If so, the module
129 will be called rtc-test.
130
131comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700132 depends on I2C
133
134if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700135
Haojian Zhuang008b3042011-05-06 17:21:20 +0800136config RTC_DRV_88PM860X
137 tristate "Marvell 88PM860x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700138 depends on I2C && MFD_88PM860X
Haojian Zhuang008b3042011-05-06 17:21:20 +0800139 help
140 If you say yes here you get support for RTC function in Marvell
141 88PM860x chips.
142
143 This driver can also be built as a module. If so, the module
144 will be called rtc-88pm860x.
145
Qiao Zhou2985c292012-07-09 14:37:34 +0800146config RTC_DRV_88PM80X
147 tristate "Marvell 88PM80x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700148 depends on I2C && MFD_88PM800
Qiao Zhou2985c292012-07-09 14:37:34 +0800149 help
150 If you say yes here you get support for RTC function in Marvell
151 88PM80x chips.
152
153 This driver can also be built as a module. If so, the module
154 will be called rtc-88pm80x.
155
Laxman Dewanganb4506262013-11-12 15:11:05 -0800156config RTC_DRV_AS3722
157 tristate "ams AS3722 RTC driver"
158 depends on MFD_AS3722
159 help
160 If you say yes here you get support for the RTC of ams AS3722 PMIC
161 chips.
162
163 This driver can also be built as a module. If so, the module
164 will be called rtc-as3722.
165
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700166config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700167 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700168 help
169 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800170 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700171 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700172 EPSON RX-8025 and probably other chips. In some cases the RTC
173 must already have been initialized (by manufacturing or a
174 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700175
176 The first seven registers on these chips hold an RTC, and other
177 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800178 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800179 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700180
181 This driver can also be built as a module. If so, the module
182 will be called rtc-ds1307.
183
Scott Woodbf4994d2007-10-16 01:28:19 -0700184config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800185 tristate "Dallas/Maxim DS1374"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700186 depends on I2C
Scott Woodbf4994d2007-10-16 01:28:19 -0700187 help
188 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800189 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700190 with the device, the alarm functionality is supported.
191
Alessandro Zummoae64d162009-01-06 14:42:17 -0800192 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700193 will be called rtc-ds1374.
194
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700195config RTC_DRV_DS1672
196 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700197 help
198 If you say yes here you get support for the
199 Dallas/Maxim DS1672 timekeeping chip.
200
201 This driver can also be built as a module. If so, the module
202 will be called rtc-ds1672.
203
Roy Zangc03675f2010-08-10 18:02:20 -0700204config RTC_DRV_DS3232
205 tristate "Dallas/Maxim DS3232"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700206 depends on I2C
Roy Zangc03675f2010-08-10 18:02:20 -0700207 help
208 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700209 DS3232 real-time clock chips. If an interrupt is associated
210 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700211
212 This driver can also be built as a module. If so, the module
213 will be called rtc-ds3232.
214
Heiko Stuebnerdcaf0382014-01-23 15:55:10 -0800215config RTC_DRV_HYM8563
216 tristate "Haoyu Microelectronics HYM8563"
217 depends on I2C && OF
218 help
219 Say Y to enable support for the HYM8563 I2C RTC chip. Apart
220 from the usual rtc functions it provides a clock output of
221 up to 32kHz.
222
223 This driver can also be built as a module. If so, the module
224 will be called rtc-hym8563.
225
Kim, Milo38ae1762013-02-21 16:44:32 -0800226config RTC_DRV_LP8788
227 tristate "TI LP8788 RTC driver"
228 depends on MFD_LP8788
229 help
230 Say Y to enable support for the LP8788 RTC/ALARM driver.
231
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700232config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800233 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700234 help
235 If you say yes here you will get support for the
236 Maxim MAX6900 I2C RTC chip.
237
238 This driver can also be built as a module. If so, the module
239 will be called rtc-max6900.
240
Stephen Warren94c01ab2012-10-04 17:13:56 -0700241config RTC_DRV_MAX8907
242 tristate "Maxim MAX8907"
243 depends on MFD_MAX8907
244 help
245 If you say yes here you will get support for the
246 RTC of Maxim MAX8907 PMIC.
247
248 This driver can also be built as a module. If so, the module
249 will be called rtc-max8907.
250
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500251config RTC_DRV_MAX8925
252 tristate "Maxim MAX8925"
253 depends on MFD_MAX8925
254 help
255 If you say yes here you will get support for the
256 RTC of Maxim MAX8925 PMIC.
257
258 This driver can also be built as a module. If so, the module
259 will be called rtc-max8925.
260
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900261config RTC_DRV_MAX8998
262 tristate "Maxim MAX8998"
263 depends on MFD_MAX8998
264 help
265 If you say yes here you will get support for the
266 RTC of Maxim MAX8998 PMIC.
267
268 This driver can also be built as a module. If so, the module
269 will be called rtc-max8998.
270
Jonghwa Lee5e0b2702013-02-21 16:45:07 -0800271config RTC_DRV_MAX8997
272 tristate "Maxim MAX8997"
273 depends on MFD_MAX8997
274 help
275 If you say yes here you will get support for the
276 RTC of Maxim MAX8997 PMIC.
277
278 This driver can also be built as a module. If so, the module
279 will be called rtc-max8997.
280
Jonghwa Leefca1dd02013-02-21 16:44:26 -0800281config RTC_DRV_MAX77686
282 tristate "Maxim MAX77686"
283 depends on MFD_MAX77686
284 help
285 If you say yes here you will get support for the
286 RTC of Maxim MAX77686 PMIC.
287
288 This driver can also be built as a module. If so, the module
289 will be called rtc-max77686.
290
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700291config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900292 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700293 help
294 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900295 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700296
297 This driver can also be built as a module. If so, the module
298 will be called rtc-rs5c372.
299
300config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800301 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700302 help
303 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800304 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700305
306 This driver can also be built as a module. If so, the module
307 will be called rtc-isl1208.
308
Roman Fietzed6c74282010-08-10 18:02:14 -0700309config RTC_DRV_ISL12022
310 tristate "Intersil ISL12022"
311 help
312 If you say yes here you get support for the
313 Intersil ISL12022 RTC chip.
314
315 This driver can also be built as a module. If so, the module
316 will be called rtc-isl12022.
317
Arnaud Ebalard70e12332013-12-19 23:27:28 +0100318config RTC_DRV_ISL12057
319 depends on I2C
320 select REGMAP_I2C
321 tristate "Intersil ISL12057"
322 help
323 If you say yes here you get support for the Intersil ISL12057
324 I2C RTC chip.
325
326 This driver can also be built as a module. If so, the module
327 will be called rtc-isl12057.
328
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700329config RTC_DRV_X1205
330 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700331 help
332 If you say yes here you get support for the
333 Xicor/Intersil X1205 RTC chip.
334
335 This driver can also be built as a module. If so, the module
336 will be called rtc-x1205.
337
Laxman Dewangan0101e532013-01-03 16:17:00 +0530338config RTC_DRV_PALMAS
339 tristate "TI Palmas RTC driver"
340 depends on MFD_PALMAS
341 help
342 If you say yes here you get support for the RTC of TI PALMA series PMIC
343 chips.
344
345 This driver can also be built as a module. If so, the module
346 will be called rtc-palma.
347
Renaud Cerrato18cb6362013-07-03 15:08:01 -0700348config RTC_DRV_PCF2127
349 tristate "NXP PCF2127"
350 help
351 If you say yes here you get support for the NXP PCF2127/29 RTC
352 chips.
353
354 This driver can also be built as a module. If so, the module
355 will be called rtc-pcf2127.
356
Thierry Redingf803f0d2012-12-17 16:02:44 -0800357config RTC_DRV_PCF8523
358 tristate "NXP PCF8523"
359 help
360 If you say yes here you get support for the NXP PCF8523 RTC
361 chips.
362
363 This driver can also be built as a module. If so, the module
364 will be called rtc-pcf8523.
365
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700366config RTC_DRV_PCF8563
367 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700368 help
369 If you say yes here you get support for the
370 Philips PCF8563 RTC chip. The Epson RTC8564
371 should work as well.
372
373 This driver can also be built as a module. If so, the module
374 will be called rtc-pcf8563.
375
376config RTC_DRV_PCF8583
377 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700378 help
379 If you say yes here you get support for the Philips PCF8583
380 RTC chip found on Acorn RiscPCs. This driver supports the
381 platform specific method of retrieving the current year from
382 the RTC's SRAM. It will work on other platforms with the same
383 chip, but the year will probably have to be tweaked.
384
385 This driver can also be built as a module. If so, the module
386 will be called rtc-pcf8583.
387
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700388config RTC_DRV_M41T80
Wolfram Sang6b1a5232014-06-06 14:35:47 -0700389 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87 and compatible"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700390 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700391 If you say Y here you will get support for the ST M41T60
392 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700393 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Wolfram Sang6b1a5232014-06-06 14:35:47 -0700394 M41ST85, M41ST87, and MicroCrystal RV4162.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700395
396 This driver can also be built as a module. If so, the module
397 will be called rtc-m41t80.
398
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700399config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700400 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700401 depends on RTC_DRV_M41T80
402 help
403 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700404 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700405
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800406config RTC_DRV_BQ32K
407 tristate "TI BQ32000"
408 help
409 If you say Y here you will get support for the TI
410 BQ32000 I2C RTC chip.
411
412 This driver can also be built as a module. If so, the module
413 will be called rtc-bq32k.
414
David Brownellafd8d0f2009-02-04 15:12:01 -0800415config RTC_DRV_DM355EVM
416 tristate "TI DaVinci DM355 EVM RTC"
417 depends on MFD_DM355EVM_MSP
418 help
419 Supports the RTC firmware in the MSP430 on the DM355 EVM.
420
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700421config RTC_DRV_TWL92330
422 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700423 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700424 help
425 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200426 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800427 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700428 the Menelaus driver; it's not separate module.
429
David Brownellf96411a2008-10-20 23:50:05 +0200430config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100431 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700432 depends on TWL4030_CORE
David Brownellf96411a2008-10-20 23:50:05 +0200433 help
434 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100435 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200436
437 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100438 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200439
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800440config RTC_DRV_TPS6586X
441 tristate "TI TPS6586X RTC driver"
442 depends on MFD_TPS6586X
443 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900444 TI Power Management IC TPS6586X supports RTC functionality
Laxman Dewangandc59ed32013-01-04 15:35:44 -0800445 along with alarm. This driver supports the RTC driver for
446 the TPS6586X RTC module.
447
Venu Byravarasu0e783982012-10-04 17:13:55 -0700448config RTC_DRV_TPS65910
449 tristate "TI TPS65910 RTC driver"
450 depends on RTC_CLASS && MFD_TPS65910
451 help
452 If you say yes here you get support for the RTC on the
453 TPS65910 chips.
454
455 This driver can also be built as a module. If so, the module
456 will be called rtc-tps65910.
457
Laxman Dewangan36d61822013-02-21 16:44:34 -0800458config RTC_DRV_TPS80031
459 tristate "TI TPS80031/TPS80032 RTC driver"
460 depends on MFD_TPS80031
461 help
Masanari Iidaa895d572013-04-09 02:06:50 +0900462 TI Power Management IC TPS80031 supports RTC functionality
Laxman Dewangan36d61822013-02-21 16:44:34 -0800463 along with alarm. This driver supports the RTC driver for
464 the TPS80031 RTC module.
465
Venu Byravarasu90829c02012-10-04 17:14:04 -0700466config RTC_DRV_RC5T583
467 tristate "RICOH 5T583 RTC driver"
468 depends on MFD_RC5T583
469 help
470 If you say yes here you get support for the RTC on the
471 RICOH 5T583 chips.
472
473 This driver can also be built as a module. If so, the module
474 will be called rtc-rc5t583.
475
Byron Bradleyc46288b2008-03-04 14:28:25 -0800476config RTC_DRV_S35390A
477 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700478 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800479 help
480 If you say yes here you will get support for the Seiko
481 Instruments S-35390A.
482
483 This driver can also be built as a module. If so the module
484 will be called rtc-s35390a.
485
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700486config RTC_DRV_FM3130
487 tristate "Ramtron FM3130"
488 help
489 If you say Y here you will get support for the
490 Ramtron FM3130 RTC chips.
491 Ramtron FM3130 is a chip with two separate devices inside,
492 RTC clock and FRAM. This driver provides only RTC functionality.
493
494 This driver can also be built as a module. If so the module
495 will be called rtc-fm3130.
496
Martyn Welcha7fa9852008-11-12 13:27:06 -0800497config RTC_DRV_RX8581
498 tristate "Epson RX-8581"
499 help
500 If you say yes here you will get support for the Epson RX-8581.
501
502 This driver can also be built as a module. If so the module
503 will be called rtc-rx8581.
504
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700505config RTC_DRV_RX8025
506 tristate "Epson RX-8025SA/NB"
507 help
508 If you say yes here you get support for the Epson
509 RX-8025SA/NB RTC chips.
510
511 This driver can also be built as a module. If so, the module
512 will be called rtc-rx8025.
513
Mike Rapoportae3551f2011-05-26 16:25:04 -0700514config RTC_DRV_EM3027
515 tristate "EM Microelectronic EM3027"
516 help
517 If you say yes here you get support for the EM
518 Microelectronic EM3027 RTC chips.
519
520 This driver can also be built as a module. If so, the module
521 will be called rtc-em3027.
522
Heiko Schocher52365232011-05-26 16:25:05 -0700523config RTC_DRV_RV3029C2
524 tristate "Micro Crystal RTC"
525 help
526 If you say yes here you get support for the Micro Crystal
527 RV3029-C2 RTC chips.
528
529 This driver can also be built as a module. If so, the module
530 will be called rtc-rv3029c2.
531
Sangbeom Kim5bccae62013-11-12 15:11:04 -0800532config RTC_DRV_S5M
533 tristate "Samsung S5M series"
534 depends on MFD_SEC_CORE
535 help
536 If you say yes here you will get support for the
537 RTC of Samsung S5M PMIC series.
538
539 This driver can also be built as a module. If so, the module
540 will be called rtc-s5m.
541
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700542endif # I2C
543
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700544comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700545
546if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700547
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700548config RTC_DRV_M41T93
549 tristate "ST M41T93"
550 help
551 If you say yes here you will get support for the
552 ST M41T93 SPI RTC chip.
553
554 This driver can also be built as a module. If so, the module
555 will be called rtc-m41t93.
556
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700557config RTC_DRV_M41T94
558 tristate "ST M41T94"
559 help
560 If you say yes here you will get support for the
561 ST M41T94 SPI RTC chip.
562
563 This driver can also be built as a module. If so, the module
564 will be called rtc-m41t94.
565
David Brownell53e84b62008-07-23 21:30:36 -0700566config RTC_DRV_DS1305
567 tristate "Dallas/Maxim DS1305/DS1306"
568 help
569 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800570 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700571 charger, alarms, and NVRAM in addition to the clock.
572
573 This driver can also be built as a module. If so, the module
574 will be called rtc-ds1305.
575
Raghavendra Ganiga617b26a2014-04-03 14:50:16 -0700576config RTC_DRV_DS1347
577 tristate "Dallas/Maxim DS1347"
578 help
579 If you say yes here you get support for the
580 Dallas/Maxim DS1347 chips.
581
582 This driver only supports the RTC feature, and not other chip
583 features such as alarms.
584
585 This driver can also be built as a module. If so, the module
586 will be called rtc-ds1347.
587
Mark Jackson06de1802008-11-12 13:27:07 -0800588config RTC_DRV_DS1390
589 tristate "Dallas/Maxim DS1390/93/94"
590 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800591 If you say yes here you get support for the
592 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800593
594 This driver only supports the RTC feature, and not other chip
595 features such as alarms and trickle charging.
596
597 This driver can also be built as a module. If so, the module
598 will be called rtc-ds1390.
599
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800600config RTC_DRV_MAX6902
601 tristate "Maxim MAX6902"
602 help
603 If you say yes here you will get support for the
604 Maxim MAX6902 SPI RTC chip.
605
606 This driver can also be built as a module. If so, the module
607 will be called rtc-max6902.
608
Magnus Damm2805b962008-02-06 01:38:53 -0800609config RTC_DRV_R9701
610 tristate "Epson RTC-9701JE"
611 help
612 If you say yes here you will get support for the
613 Epson RTC-9701JE SPI RTC chip.
614
615 This driver can also be built as a module. If so, the module
616 will be called rtc-r9701.
617
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700618config RTC_DRV_RS5C348
619 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700620 help
621 If you say yes here you get support for the
622 Ricoh RS5C348A and RS5C348B RTC chips.
623
624 This driver can also be built as a module. If so, the module
625 will be called rtc-rs5c348.
626
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700627config RTC_DRV_DS3234
628 tristate "Maxim/Dallas DS3234"
629 help
630 If you say yes here you get support for the
631 Maxim/Dallas DS3234 SPI RTC chip.
632
633 This driver can also be built as a module. If so, the module
634 will be called rtc-ds3234.
635
Chris Verges7f3923a2009-09-22 16:46:20 -0700636config RTC_DRV_PCF2123
637 tristate "NXP PCF2123"
638 help
639 If you say yes here you get support for the NXP PCF2123
640 RTC chip.
641
642 This driver can also be built as a module. If so, the module
643 will be called rtc-pcf2123.
644
Torben Hohncce2da92013-02-21 16:44:40 -0800645config RTC_DRV_RX4581
646 tristate "Epson RX-4581"
647 help
648 If you say yes here you will get support for the Epson RX-4581.
649
650 This driver can also be built as a module. If so the module
651 will be called rtc-rx4581.
652
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700653endif # SPI_MASTER
654
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700655comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800656
David Brownell7be2c7c2007-02-10 01:46:02 -0800657# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
658# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
659# global rtc_lock ... it's not yet just another platform_device.
660
661config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700662 tristate "PC-style 'CMOS'"
Geert Uytterhoeven41c9dbf2014-01-23 15:55:12 -0800663 depends on X86 || ARM || M32R || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700664 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800665 help
666 Say "yes" here to get direct support for the real time clock
667 found in every PC or ACPI-based system, and some other boards.
668 Specifically the original MC146818, compatibles like those in
669 PC south bridges, the DS12887 or M48T86, some multifunction
670 or LPC bus chips, and so on.
671
672 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800673 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800674 you can safely enable this driver if you don't know whether
675 or not your board has this kind of hardware.
676
677 This driver can also be built as a module. If so, the module
678 will be called rtc-cmos.
679
Richard Henderson85d0b3a2013-07-13 15:49:45 -0700680config RTC_DRV_ALPHA
681 bool "Alpha PC-style CMOS"
682 depends on ALPHA
683 default y
684 help
685 Direct support for the real-time clock found on every Alpha
686 system, specifically MC146818 compatibles. If in doubt, say Y.
687
Feng Tang0146f262010-11-10 17:29:17 +0000688config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000689 tristate "Virtual RTC for Intel MID platforms"
690 depends on X86_INTEL_MID
691 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000692
693 help
694 Say "yes" here to get direct support for the real time clock
695 found on Moorestown platforms. The VRTC is a emulated RTC that
696 derives its clock source from a real RTC in the PMIC. The MC146818
697 style programming interface is mostly conserved, but any
698 updates are done via IPC calls to the system controller FW.
699
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700700config RTC_DRV_DS1216
701 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700702 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700703 help
704 If you say yes here you get support for the Dallas DS1216 RTC chips.
705
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200706config RTC_DRV_DS1286
707 tristate "Dallas DS1286"
708 help
709 If you say yes here you get support for the Dallas DS1286 RTC chips.
710
Paul Mundt739d3402008-02-06 01:38:44 -0800711config RTC_DRV_DS1302
712 tristate "Dallas DS1302"
713 depends on SH_SECUREEDGE5410
714 help
715 If you say yes here you get support for the Dallas DS1302 RTC chips.
716
Andrew Sharp8f267952008-02-06 01:38:46 -0800717config RTC_DRV_DS1511
718 tristate "Dallas DS1511"
Andrew Sharp8f267952008-02-06 01:38:46 -0800719 help
720 If you say yes here you get support for the
721 Dallas DS1511 timekeeping/watchdog chip.
722
723 This driver can also be built as a module. If so, the module
724 will be called rtc-ds1511.
725
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700726config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800727 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700728 help
729 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800730 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700731
732 This driver can also be built as a module. If so, the module
733 will be called rtc-ds1553.
734
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800735config RTC_DRV_DS1742
736 tristate "Maxim/Dallas DS1742/1743"
737 help
738 If you say yes here you get support for the
739 Maxim/Dallas DS1742/1743 timekeeping chip.
740
741 This driver can also be built as a module. If so, the module
742 will be called rtc-ds1742.
743
Ashish Jangamfef931f2012-03-23 15:02:36 -0700744config RTC_DRV_DA9052
745 tristate "Dialog DA9052/DA9053 RTC"
746 depends on PMIC_DA9052
747 help
748 Say y here to support the RTC driver for Dialog Semiconductor
749 DA9052-BC and DA9053-AA/Bx PMICs.
750
Ashish Jangam6920d992012-12-17 16:02:53 -0800751config RTC_DRV_DA9055
752 tristate "Dialog Semiconductor DA9055 RTC"
753 depends on MFD_DA9055
754 help
755 If you say yes here you will get support for the
756 RTC of the Dialog DA9055 PMIC.
757
758 This driver can also be built as a module. If so, the module
759 will be called rtc-da9055
760
dann frazier5e3fd9e2009-03-31 15:24:48 -0700761config RTC_DRV_EFI
762 tristate "EFI RTC"
763 depends on IA64
764 help
765 If you say yes here you will get support for the EFI
766 Real Time Clock.
767
768 This driver can also be built as a module. If so, the module
769 will be called rtc-efi.
770
Thomas Hommel02964112007-07-21 04:37:58 -0700771config RTC_DRV_STK17TA8
772 tristate "Simtek STK17TA8"
Thomas Hommel02964112007-07-21 04:37:58 -0700773 help
774 If you say yes here you get support for the
775 Simtek STK17TA8 timekeeping chip.
776
777 This driver can also be built as a module. If so, the module
778 will be called rtc-stk17ta8.
779
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700780config RTC_DRV_M48T86
781 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700782 help
783 If you say Y here you will get support for the
784 ST M48T86 and Dallas DS12887 RTC chips.
785
786 This driver can also be built as a module. If so, the module
787 will be called rtc-m48t86.
788
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200789config RTC_DRV_M48T35
790 tristate "ST M48T35"
791 help
792 If you say Y here you will get support for the
793 ST M48T35 RTC chip.
794
795 This driver can also be built as a module, if so, the module
796 will be called "rtc-m48t35".
797
Mark Zhan2e774c72007-07-17 04:05:05 -0700798config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700799 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700800 help
801 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700802 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
803
804 These chips are usually found in Sun SPARC and UltraSPARC
805 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700806
807 This driver can also be built as a module, if so, the module
808 will be called "rtc-m48t59".
809
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100810config RTC_DRV_MSM6242
811 tristate "Oki MSM6242"
812 help
813 If you say yes here you get support for the Oki MSM6242
814 timekeeping chip. It is used in some Amiga models (e.g. A2000).
815
816 This driver can also be built as a module. If so, the module
817 will be called rtc-msm6242.
818
David S. Millercca4c232008-08-29 01:29:53 -0700819config RTC_DRV_BQ4802
820 tristate "TI BQ4802"
821 help
822 If you say Y here you will get support for the TI
823 BQ4802 RTC chip.
824
825 This driver can also be built as a module. If so, the module
826 will be called rtc-bq4802.
827
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100828config RTC_DRV_RP5C01
829 tristate "Ricoh RP5C01"
830 help
831 If you say yes here you get support for the Ricoh RP5C01
832 timekeeping chip. It is used in some Amiga models (e.g. A3000
833 and A4000).
834
835 This driver can also be built as a module. If so, the module
836 will be called rtc-rp5c01.
837
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700838config RTC_DRV_V3020
839 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700840 help
841 If you say yes here you will get support for the
842 EM Microelectronic v3020 RTC chip.
843
844 This driver can also be built as a module. If so, the module
845 will be called rtc-v3020.
846
Sven Schnelle7418a112012-10-04 17:13:47 -0700847config RTC_DRV_DS2404
848 tristate "Dallas DS2404"
849 help
850 If you say yes here you get support for the
851 Dallas DS2404 RTC chip.
852
853 This driver can also be built as a module. If so, the module
854 will be called rtc-ds2404.
855
Mark Brown35c86bf2009-08-27 19:59:05 +0200856config RTC_DRV_WM831X
857 tristate "Wolfson Microelectronics WM831x RTC"
858 depends on MFD_WM831X
859 help
860 If you say yes here you will get support for the RTC subsystem
861 of the Wolfson Microelectronics WM831X series PMICs.
862
863 This driver can also be built as a module. If so, the module
864 will be called "rtc-wm831x".
865
Mark Brown077eaf52008-11-12 13:27:04 -0800866config RTC_DRV_WM8350
867 tristate "Wolfson Microelectronics WM8350 RTC"
868 depends on MFD_WM8350
869 help
870 If you say yes here you will get support for the RTC subsystem
871 of the Wolfson Microelectronics WM8350.
872
873 This driver can also be built as a module. If so, the module
874 will be called "rtc-wm8350".
875
Rajeev Kumar0942a712011-05-26 16:25:09 -0700876config RTC_DRV_SPEAR
877 tristate "SPEAR ST RTC"
878 depends on PLAT_SPEAR
879 default y
880 help
881 If you say Y here you will get support for the RTC found on
882 spear
883
Balaji Raoeae854b2009-01-09 01:50:51 +0100884config RTC_DRV_PCF50633
885 depends on MFD_PCF50633
886 tristate "NXP PCF50633 RTC"
887 help
888 If you say yes here you get support for the RTC subsystem of the
889 NXP PCF50633 used in embedded systems.
890
Linus Walleijbd207cf2009-08-30 23:49:04 +0200891config RTC_DRV_AB3100
892 tristate "ST-Ericsson AB3100 RTC"
893 depends on AB3100_CORE
894 default y if AB3100_CORE
895 help
896 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
897 support. This chip contains a battery- and capacitor-backed RTC.
898
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700899config RTC_DRV_AB8500
900 tristate "ST-Ericsson AB8500 RTC"
901 depends on AB8500_CORE
Ulf Hansson651fb482012-10-04 17:14:32 -0700902 select RTC_INTF_DEV
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -0700903 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700904 help
905 Select this to enable the ST-Ericsson AB8500 power management IC RTC
906 support. This chip contains a battery- and capacitor-backed RTC.
907
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800908config RTC_DRV_NUC900
909 tristate "NUC910/NUC920 RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700910 depends on ARCH_W90X900
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800911 help
912 If you say yes here you get support for the RTC subsystem of the
913 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200914
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700915comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700916
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600917config RTC_DRV_DAVINCI
918 tristate "TI DaVinci RTC"
919 depends on ARCH_DAVINCI_DM365
920 help
921 If you say yes here you get support for the RTC on the
922 DaVinci platforms (DM365).
923
924 This driver can also be built as a module. If so, the module
925 will be called rtc-davinci.
926
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700927config RTC_DRV_IMXDI
928 tristate "Freescale IMX DryIce Real Time Clock"
Roland Stiggeef216ad2012-12-17 16:02:22 -0800929 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700930 help
931 Support for Freescale IMX DryIce RTC
932
933 This driver can also be built as a module, if so, the module
934 will be called "rtc-imxdi".
935
David Brownelldb68b182006-12-06 20:38:36 -0800936config RTC_DRV_OMAP
937 tristate "TI OMAP1"
Afzal Mohammed427af9a2012-12-17 16:02:17 -0800938 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX || SOC_AM33XX
David Brownelldb68b182006-12-06 20:38:36 -0800939 help
Afzal Mohammed427af9a2012-12-17 16:02:17 -0800940 Say "yes" here to support the on chip real time clock
941 present on TI OMAP1, AM33xx and DA8xx/OMAP-L13x.
942
943 This driver can also be built as a module, if so, module
944 will be called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800945
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530946config HAVE_S3C_RTC
947 bool
948 help
949 This will include RTC support for Samsung SoCs. If
950 you want to include RTC support for any machine, kindly
951 select this in the respective mach-XXXX/Kconfig file.
952
Ben Dooks1add6782006-07-01 04:36:26 -0700953config RTC_DRV_S3C
954 tristate "Samsung S3C series SoC RTC"
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900955 depends on ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700956 help
957 RTC (Realtime Clock) driver for the clock inbuilt into the
958 Samsung S3C24XX series of SoCs. This can provide periodic
959 interrupt rates from 1Hz to 64Hz for user programs, and
960 wakeup from Alarm.
961
962 The driver currently supports the common features on all the
963 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
964 and S3C2442.
965
966 This driver can also be build as a module. If so, the module
967 will be called rtc-s3c.
968
Alessandro Zummofd507e22006-03-27 01:16:45 -0800969config RTC_DRV_EP93XX
970 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700971 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800972 help
973 If you say yes here you get support for the
974 RTC embedded in the Cirrus Logic EP93XX processors.
975
976 This driver can also be built as a module. If so, the module
977 will be called rtc-ep93xx.
978
Richard Purdiee842f1c2006-03-27 01:16:46 -0800979config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +0800980 tristate "SA11x0/PXA2xx/PXA910"
981 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -0800982 help
983 If you say Y here you will get access to the real time clock
984 built into your SA11x0 or PXA2xx CPU.
985
986 To compile this driver as a module, choose M here: the
987 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800988
Paul Mundt317a6102006-09-27 17:13:19 +0900989config RTC_DRV_SH
990 tristate "SuperH On-Chip RTC"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700991 depends on SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900992 help
993 Say Y here to enable support for the on-chip RTC found in
994 most SuperH processors.
995
996 To compile this driver as a module, choose M here: the
997 module will be called rtc-sh.
998
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700999config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -07001000 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001001 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -07001002 help
1003 If you say Y here you will get access to the real time clock
1004 built into your NEC VR41XX CPU.
1005
1006 To compile this driver as a module, choose M here: the
1007 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -07001008
Russell Kinga1909012008-04-20 12:08:36 +01001009config RTC_DRV_PL030
1010 tristate "ARM AMBA PL030 RTC"
1011 depends on ARM_AMBA
1012 help
1013 If you say Y here you will get access to ARM AMBA
1014 PrimeCell PL030 RTC found on certain ARM SOCs.
1015
1016 To compile this driver as a module, choose M here: the
1017 module will be called rtc-pl030.
1018
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001019config RTC_DRV_PL031
1020 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001021 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001022 help
1023 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -07001024 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -07001025
1026 To compile this driver as a module, choose M here: the
1027 module will be called rtc-pl031.
1028
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -07001029config RTC_DRV_AT32AP700X
1030 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001031 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -07001032 help
1033 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
1034 AT32AP700x family processors.
1035
Andrew Victor7fc39f62006-12-10 02:19:03 -08001036config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001037 tristate "AT91RM9200 or some AT91SAM9 RTC"
Nicolas Ferre938f9702012-03-15 14:38:09 +01001038 depends on ARCH_AT91
Andrew Victor788b1fc2006-06-25 05:48:27 -07001039 help
David Brownell4cdf8542008-02-06 01:38:59 -08001040 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001041 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -08001042 this is powered by the backup power supply.
1043
1044config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001045 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -08001046 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
1047 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +01001048 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
1049 (Real Time Timer). These timers are powered by the backup power
1050 supply (such as a small coin cell battery), but do not need to
1051 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -08001052
Nicolas Ferre24cecc12010-10-22 19:12:52 +02001053 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
1054 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -08001055
1056config RTC_DRV_AT91SAM9_RTT
1057 int
1058 range 0 1
1059 default 0
1060 prompt "RTT module Number" if ARCH_AT91SAM9263
1061 depends on RTC_DRV_AT91SAM9
1062 help
Alessandro Zummoae64d162009-01-06 14:42:17 -08001063 More than one RTT module is available. You can choose which
1064 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -08001065 OK to use, though some systems use that for non-RTC purposes.
1066
1067config RTC_DRV_AT91SAM9_GPBR
1068 int
1069 range 0 3 if !ARCH_AT91SAM9263
1070 range 0 15 if ARCH_AT91SAM9263
1071 default 0
1072 prompt "Backup Register Number"
1073 depends on RTC_DRV_AT91SAM9
1074 help
1075 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -08001076 Registers (GPBRs) as well as the RTT. You can choose which one
1077 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -08001078 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -07001079
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001080config RTC_DRV_AU1XXX
1081 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +02001082 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -08001083 help
1084 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
1085 counter) to be used as a RTC.
1086
1087 This driver can also be built as a module. If so, the module
1088 will be called rtc-au1xxx.
1089
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001090config RTC_DRV_BFIN
1091 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -07001092 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -07001093 help
1094 If you say yes here you will get support for the
1095 Blackfin On-Chip Real Time Clock.
1096
1097 This driver can also be built as a module. If so, the module
1098 will be called rtc-bfin.
1099
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001100config RTC_DRV_RS5C313
1101 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001102 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -07001103 help
1104 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
1105
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001106config RTC_DRV_GENERIC
1107 tristate "Generic RTC support"
1108 # Please consider writing a new RTC driver instead of using the generic
1109 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +09001110 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +00001111 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +01001112 Say Y or M here to enable RTC support on systems using the generic
1113 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +00001114 just say Y.
1115
Robert Jarzmikdc944362009-01-06 14:42:14 -08001116config RTC_DRV_PXA
1117 tristate "PXA27x/PXA3xx"
1118 depends on ARCH_PXA
1119 help
1120 If you say Y here you will get access to the real time clock
1121 built into your PXA27x or PXA3xx CPU.
1122
1123 This RTC driver uses PXA RTC registers available since pxa27x
1124 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
1125
Alexey Charkovf77fbdf2011-05-26 16:25:03 -07001126config RTC_DRV_VT8500
1127 tristate "VIA/WonderMedia 85xx SoC RTC"
1128 depends on ARCH_VT8500
1129 help
1130 If you say Y here you will get access to the real time clock
1131 built into your VIA VT8500 SoC or its relatives.
1132
Robert Jarzmikdc944362009-01-06 14:42:14 -08001133
David S. Miller7a138ed2008-08-29 01:32:43 -07001134config RTC_DRV_SUN4V
1135 bool "SUN4V Hypervisor RTC"
1136 depends on SPARC64
1137 help
1138 If you say Y here you will get support for the Hypervisor
1139 based RTC on SUN4V systems.
1140
Carlo Caione594c6fb2013-11-16 18:33:54 +01001141config RTC_DRV_SUNXI
1142 tristate "Allwinner sun4i/sun7i RTC"
1143 depends on ARCH_SUNXI
1144 help
1145 If you say Y here you will get support for the RTC found on
1146 Allwinner A10/A20.
1147
David S. Millerde2cf332008-08-28 23:02:36 -07001148config RTC_DRV_STARFIRE
1149 bool "Starfire RTC"
1150 depends on SPARC64
1151 help
1152 If you say Y here you will get support for the RTC found on
1153 Starfire systems.
1154
Atsushi Nemoto0e149232009-01-06 14:42:22 -08001155config RTC_DRV_TX4939
1156 tristate "TX4939 SoC"
1157 depends on SOC_TX4939
1158 help
1159 Driver for the internal RTC (Realtime Clock) module found on
1160 Toshiba TX4939 SoC.
1161
Saeed Bisharadefb4512009-01-06 14:42:24 -08001162config RTC_DRV_MV
1163 tristate "Marvell SoC RTC"
Gregory CLEMENTa1671da2012-12-12 10:06:23 +01001164 depends on ARCH_KIRKWOOD || ARCH_DOVE || ARCH_MVEBU
Saeed Bisharadefb4512009-01-06 14:42:24 -08001165 help
1166 If you say yes here you will get support for the in-chip RTC
1167 that can be found in some of Marvell's SoC devices, such as
1168 the Kirkwood 88F6281 and 88F6192.
1169
1170 This driver can also be built as a module. If so, the module
1171 will be called rtc-mv.
1172
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +01001173config RTC_DRV_PS3
1174 tristate "PS3 RTC"
1175 depends on PPC_PS3
1176 help
1177 If you say yes here you will get support for the RTC on PS3.
1178
1179 This driver can also be built as a module. If so, the module
1180 will be called rtc-ps3.
1181
Linus Walleijaa958f52009-09-22 16:46:24 -07001182config RTC_DRV_COH901331
1183 tristate "ST-Ericsson COH 901 331 RTC"
1184 depends on ARCH_U300
1185 help
1186 If you say Y here you will get access to ST-Ericsson
1187 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1188 Platforms.
1189
1190 This driver can also be built as a module. If so, the module
1191 will be called "rtc-coh901331".
1192
1193
dmitry pervushindf17f632009-09-22 16:46:26 -07001194config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001195 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1196 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -07001197 help
1198 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001199 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001200
1201 This driver can also be built as a module. If so, the module
1202 will be called rtc-stmp3xxx.
1203
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001204config RTC_DRV_PCAP
1205 tristate "PCAP RTC"
1206 depends on EZX_PCAP
1207 help
1208 If you say Y here you will get support for the RTC found on
1209 the PCAP2 ASIC used on some Motorola phones.
1210
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001211config RTC_DRV_MC13XXX
1212 depends on MFD_MC13XXX
1213 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001214 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001215 This enables support for the RTCs found on Freescale's PMICs
1216 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001217
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001218config RTC_DRV_MPC5121
1219 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001220 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001221 help
1222 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001223 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001224
1225 This driver can also be built as a module. If so, the module
1226 will be called rtc-mpc5121.
1227
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001228config RTC_DRV_JZ4740
1229 tristate "Ingenic JZ4740 SoC"
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001230 depends on MACH_JZ4740
1231 help
1232 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1233 controller.
1234
1235 This driver can also be buillt as a module. If so, the module
1236 will be called rtc-jz4740.
1237
Kevin Wells9aa449b2010-10-27 15:33:01 -07001238config RTC_DRV_LPC32XX
1239 depends on ARCH_LPC32XX
1240 tristate "NXP LPC32XX RTC"
1241 help
1242 This enables support for the NXP RTC in the LPC32XX
1243
1244 This driver can also be buillt as a module. If so, the module
1245 will be called rtc-lpc32xx.
1246
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001247config RTC_DRV_PM8XXX
1248 tristate "Qualcomm PMIC8XXX RTC"
1249 depends on MFD_PM8XXX
1250 help
1251 If you say yes here you get support for the
1252 Qualcomm PMIC8XXX RTC.
1253
1254 To compile this driver as a module, choose M here: the
1255 module will be called rtc-pm8xxx.
1256
Andrew Chewff859ba2011-03-22 16:34:55 -07001257config RTC_DRV_TEGRA
1258 tristate "NVIDIA Tegra Internal RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -07001259 depends on ARCH_TEGRA
Andrew Chewff859ba2011-03-22 16:34:55 -07001260 help
1261 If you say yes here you get support for the
1262 Tegra 200 series internal RTC module.
1263
1264 This drive can also be built as a module. If so, the module
1265 will be called rtc-tegra.
1266
Chris Metcalfdd196a22011-05-09 13:28:43 -04001267config RTC_DRV_TILE
1268 tristate "Tilera hypervisor RTC support"
1269 depends on TILE
1270 help
1271 Enable support for the Linux driver side of the Tilera
1272 hypervisor's real-time clock interface.
1273
Guan Xuetao2809e802011-05-26 16:43:27 +08001274config RTC_DRV_PUV3
1275 tristate "PKUnity v3 RTC support"
1276 depends on ARCH_PUV3
1277 help
1278 This enables support for the RTC in the PKUnity-v3 SoCs.
1279
1280 This drive can also be built as a module. If so, the module
1281 will be called rtc-puv3.
1282
zhao zhangb4f0b882012-03-23 15:02:32 -07001283config RTC_DRV_LOONGSON1
1284 tristate "loongson1 RTC support"
1285 depends on MACH_LOONGSON1
1286 help
1287 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1288 counter) to be used as a RTC.
1289
1290 This driver can also be built as a module. If so, the module
1291 will be called rtc-ls1x.
1292
Fabio Estevam79811592012-05-29 15:07:37 -07001293config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001294 tristate "Freescale MXC Real Time Clock"
1295 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001296 help
1297 If you say yes here you get support for the Freescale MXC
1298 RTC module.
1299
1300 This driver can also be built as a module, if so, the module
1301 will be called "rtc-mxc".
1302
Shawn Guo179a5022012-10-04 17:13:49 -07001303config RTC_DRV_SNVS
1304 tristate "Freescale SNVS RTC support"
1305 depends on HAS_IOMEM
1306 depends on OF
1307 help
1308 If you say yes here you get support for the Freescale SNVS
1309 Low Power (LP) RTC module.
1310
1311 This driver can also be built as a module, if so, the module
1312 will be called "rtc-snvs".
1313
Xianglong Due88b8152013-07-03 15:08:04 -07001314config RTC_DRV_SIRFSOC
1315 tristate "SiRFSOC RTC"
1316 depends on ARCH_SIRF
1317 help
1318 Say "yes" here to support the real time clock on SiRF SOC chips.
1319 This driver can also be built as a module called rtc-sirfsoc.
1320
Jonas Jensen453b4c62013-09-11 14:24:17 -07001321config RTC_DRV_MOXART
1322 tristate "MOXA ART RTC"
1323 help
1324 If you say yes here you get support for the MOXA ART
1325 RTC module.
1326
1327 This driver can also be built as a module. If so, the module
1328 will be called rtc-moxart
1329
Loc Hof12d8692014-06-06 14:35:42 -07001330config RTC_DRV_XGENE
1331 tristate "APM X-Gene RTC"
1332 help
1333 If you say yes here you get support for the APM X-Gene SoC real time
1334 clock.
1335
1336 This driver can also be built as a module, if so, the module
1337 will be called "rtc-xgene".
1338
Alexander Holler62e00cb2012-12-15 12:45:00 +00001339comment "HID Sensor RTC drivers"
1340
1341config RTC_DRV_HID_SENSOR_TIME
1342 tristate "HID Sensor Time"
1343 depends on USB_HID
1344 select IIO
1345 select HID_SENSOR_HUB
1346 select HID_SENSOR_IIO_COMMON
1347 help
1348 Say yes here to build support for the HID Sensors of type Time.
1349 This drivers makes such sensors available as RTCs.
1350
1351 If this driver is compiled as a module, it will be named
1352 rtc-hid-sensor-time.
1353
1354
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001355endif # RTC_CLASS