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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
28config RTC_HCTOSYS_DEVICE
David Brownell7ca1d482007-05-08 00:33:42 -070029 string "RTC used to set the system time"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080030 depends on RTC_HCTOSYS = y
31 default "rtc0"
32 help
David Brownell7ca1d482007-05-08 00:33:42 -070033 The RTC device that will be used to (re)initialize the system
Alessandro Zummoae64d162009-01-06 14:42:17 -080034 clock, usually rtc0. Initialization is done when the system
35 starts up, and when it resumes from a low power state. This
David Brownell779d2082007-11-14 16:58:29 -080036 device should record time in UTC, since the kernel won't do
37 timezone correction.
David Brownell7ca1d482007-05-08 00:33:42 -070038
David Brownell55ff1ab2007-07-21 04:37:56 -070039 The driver for this RTC device must be loaded before late_initcall
40 functions run, so it must usually be statically linked.
41
David Brownell7ca1d482007-05-08 00:33:42 -070042 This clock should be battery-backed, so that it reads the correct
Alessandro Zummoae64d162009-01-06 14:42:17 -080043 time when the system boots from a power-off state. Otherwise, your
David Brownell7ca1d482007-05-08 00:33:42 -070044 system will need an external clock source (like an NTP server).
45
46 If the clock you specify here is not battery backed, it may still
47 be useful to reinitialize system time when resuming from system
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -080048 sleep states. Do not specify an RTC here unless it stays powered
David Brownell7ca1d482007-05-08 00:33:42 -070049 during all this system's supported sleep states.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080050
David Brownell9e86ecb2006-09-30 23:28:14 -070051config RTC_DEBUG
52 bool "RTC debug support"
David Brownell9e86ecb2006-09-30 23:28:14 -070053 help
54 Say yes here to enable debugging support in the RTC framework
55 and individual RTC drivers.
56
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080057comment "RTC interfaces"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080058
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080059config RTC_INTF_SYSFS
David Brownelle40659c2007-05-16 22:11:15 -070060 boolean "/sys/class/rtc/rtcN (sysfs)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070061 depends on SYSFS
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080062 help
David Brownell9e86ecb2006-09-30 23:28:14 -070063 Say yes here if you want to use your RTCs using sysfs interfaces,
64 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080065
Alessandro Zummoae64d162009-01-06 14:42:17 -080066 If unsure, say Y.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080067
Alessandro Zummo728a2942006-03-27 01:16:40 -080068config RTC_INTF_PROC
Kim, Milo92589c92012-10-04 17:13:45 -070069 boolean "/proc/driver/rtc (procfs for rtcN)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070070 depends on PROC_FS
Alessandro Zummo728a2942006-03-27 01:16:40 -080071 help
Kim, Milo92589c92012-10-04 17:13:45 -070072 Say yes here if you want to use your system clock RTC through
73 the proc interface, /proc/driver/rtc.
74 Other RTCs will not be available through that API.
75 If there is no RTC for the system clock, then the first RTC(rtc0)
76 is used by default.
Alessandro Zummo728a2942006-03-27 01:16:40 -080077
Alessandro Zummoae64d162009-01-06 14:42:17 -080078 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -080079
Alessandro Zummoe8242902006-03-27 01:16:41 -080080config RTC_INTF_DEV
David Brownelle40659c2007-05-16 22:11:15 -070081 boolean "/dev/rtcN (character devices)"
Alessandro Zummoe8242902006-03-27 01:16:41 -080082 help
David Brownell9e86ecb2006-09-30 23:28:14 -070083 Say yes here if you want to use your RTCs using the /dev
84 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -080085 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -080086
Alessandro Zummoae64d162009-01-06 14:42:17 -080087 You may want to set up a symbolic link so one of these
88 can be accessed as /dev/rtc, which is a name
89 expected by "hwclock" and some other programs. Recent
90 versions of "udev" are known to set up the symlink for you.
91
92 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -080093
John Stultz6e57b1d2011-02-11 17:45:40 -080094config RTC_INTF_DEV_UIE_EMUL
95 bool "RTC UIE emulation on dev interface"
96 depends on RTC_INTF_DEV
97 help
98 Provides an emulation for RTC_UIE if the underlying rtc chip
99 driver does not expose RTC_UIE ioctls. Those requests generate
100 once-per-second update interrupts, used for synchronization.
101
102 The emulation code will read the time from the hardware
103 clock several times per second, please enable this option
104 only if you know that you really need it.
105
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700106config RTC_DRV_TEST
107 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700108 help
109 If you say yes here you get support for the
110 RTC test driver. It's a software RTC which can be
111 used to test the RTC subsystem APIs. It gets
112 the time from the system clock.
113 You want this driver only if you are doing development
114 on the RTC subsystem. Please read the source code
115 for further details.
116
117 This driver can also be built as a module. If so, the module
118 will be called rtc-test.
119
120comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700121 depends on I2C
122
123if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700124
Haojian Zhuang008b3042011-05-06 17:21:20 +0800125config RTC_DRV_88PM860X
126 tristate "Marvell 88PM860x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700127 depends on I2C && MFD_88PM860X
Haojian Zhuang008b3042011-05-06 17:21:20 +0800128 help
129 If you say yes here you get support for RTC function in Marvell
130 88PM860x chips.
131
132 This driver can also be built as a module. If so, the module
133 will be called rtc-88pm860x.
134
Qiao Zhou2985c292012-07-09 14:37:34 +0800135config RTC_DRV_88PM80X
136 tristate "Marvell 88PM80x"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700137 depends on I2C && MFD_88PM800
Qiao Zhou2985c292012-07-09 14:37:34 +0800138 help
139 If you say yes here you get support for RTC function in Marvell
140 88PM80x chips.
141
142 This driver can also be built as a module. If so, the module
143 will be called rtc-88pm80x.
144
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700145config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700146 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700147 help
148 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800149 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700150 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700151 EPSON RX-8025 and probably other chips. In some cases the RTC
152 must already have been initialized (by manufacturing or a
153 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700154
155 The first seven registers on these chips hold an RTC, and other
156 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800157 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800158 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700159
160 This driver can also be built as a module. If so, the module
161 will be called rtc-ds1307.
162
Scott Woodbf4994d2007-10-16 01:28:19 -0700163config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800164 tristate "Dallas/Maxim DS1374"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700165 depends on I2C
Scott Woodbf4994d2007-10-16 01:28:19 -0700166 help
167 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800168 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700169 with the device, the alarm functionality is supported.
170
Alessandro Zummoae64d162009-01-06 14:42:17 -0800171 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700172 will be called rtc-ds1374.
173
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700174config RTC_DRV_DS1672
175 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700176 help
177 If you say yes here you get support for the
178 Dallas/Maxim DS1672 timekeeping chip.
179
180 This driver can also be built as a module. If so, the module
181 will be called rtc-ds1672.
182
Roy Zangc03675f2010-08-10 18:02:20 -0700183config RTC_DRV_DS3232
184 tristate "Dallas/Maxim DS3232"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700185 depends on I2C
Roy Zangc03675f2010-08-10 18:02:20 -0700186 help
187 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700188 DS3232 real-time clock chips. If an interrupt is associated
189 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700190
191 This driver can also be built as a module. If so, the module
192 will be called rtc-ds3232.
193
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700194config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800195 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700196 help
197 If you say yes here you will get support for the
198 Maxim MAX6900 I2C RTC chip.
199
200 This driver can also be built as a module. If so, the module
201 will be called rtc-max6900.
202
Stephen Warren94c01ab2012-10-04 17:13:56 -0700203config RTC_DRV_MAX8907
204 tristate "Maxim MAX8907"
205 depends on MFD_MAX8907
206 help
207 If you say yes here you will get support for the
208 RTC of Maxim MAX8907 PMIC.
209
210 This driver can also be built as a module. If so, the module
211 will be called rtc-max8907.
212
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500213config RTC_DRV_MAX8925
214 tristate "Maxim MAX8925"
215 depends on MFD_MAX8925
216 help
217 If you say yes here you will get support for the
218 RTC of Maxim MAX8925 PMIC.
219
220 This driver can also be built as a module. If so, the module
221 will be called rtc-max8925.
222
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900223config RTC_DRV_MAX8998
224 tristate "Maxim MAX8998"
225 depends on MFD_MAX8998
226 help
227 If you say yes here you will get support for the
228 RTC of Maxim MAX8998 PMIC.
229
230 This driver can also be built as a module. If so, the module
231 will be called rtc-max8998.
232
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700233config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900234 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700235 help
236 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900237 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700238
239 This driver can also be built as a module. If so, the module
240 will be called rtc-rs5c372.
241
242config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800243 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700244 help
245 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800246 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700247
248 This driver can also be built as a module. If so, the module
249 will be called rtc-isl1208.
250
Roman Fietzed6c74282010-08-10 18:02:14 -0700251config RTC_DRV_ISL12022
252 tristate "Intersil ISL12022"
253 help
254 If you say yes here you get support for the
255 Intersil ISL12022 RTC chip.
256
257 This driver can also be built as a module. If so, the module
258 will be called rtc-isl12022.
259
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700260config RTC_DRV_X1205
261 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700262 help
263 If you say yes here you get support for the
264 Xicor/Intersil X1205 RTC chip.
265
266 This driver can also be built as a module. If so, the module
267 will be called rtc-x1205.
268
269config RTC_DRV_PCF8563
270 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700271 help
272 If you say yes here you get support for the
273 Philips PCF8563 RTC chip. The Epson RTC8564
274 should work as well.
275
276 This driver can also be built as a module. If so, the module
277 will be called rtc-pcf8563.
278
279config RTC_DRV_PCF8583
280 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700281 help
282 If you say yes here you get support for the Philips PCF8583
283 RTC chip found on Acorn RiscPCs. This driver supports the
284 platform specific method of retrieving the current year from
285 the RTC's SRAM. It will work on other platforms with the same
286 chip, but the year will probably have to be tweaked.
287
288 This driver can also be built as a module. If so, the module
289 will be called rtc-pcf8583.
290
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700291config RTC_DRV_M41T80
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700292 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700293 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700294 If you say Y here you will get support for the ST M41T60
295 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700296 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700297 M41ST85, and M41ST87.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700298
299 This driver can also be built as a module. If so, the module
300 will be called rtc-m41t80.
301
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700302config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700303 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700304 depends on RTC_DRV_M41T80
305 help
306 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700307 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700308
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800309config RTC_DRV_BQ32K
310 tristate "TI BQ32000"
311 help
312 If you say Y here you will get support for the TI
313 BQ32000 I2C RTC chip.
314
315 This driver can also be built as a module. If so, the module
316 will be called rtc-bq32k.
317
David Brownellafd8d0f2009-02-04 15:12:01 -0800318config RTC_DRV_DM355EVM
319 tristate "TI DaVinci DM355 EVM RTC"
320 depends on MFD_DM355EVM_MSP
321 help
322 Supports the RTC firmware in the MSP430 on the DM355 EVM.
323
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700324config RTC_DRV_TWL92330
325 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700326 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700327 help
328 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200329 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800330 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700331 the Menelaus driver; it's not separate module.
332
David Brownellf96411a2008-10-20 23:50:05 +0200333config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100334 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700335 depends on TWL4030_CORE
David Brownellf96411a2008-10-20 23:50:05 +0200336 help
337 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100338 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200339
340 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100341 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200342
Venu Byravarasu0e783982012-10-04 17:13:55 -0700343config RTC_DRV_TPS65910
344 tristate "TI TPS65910 RTC driver"
345 depends on RTC_CLASS && MFD_TPS65910
346 help
347 If you say yes here you get support for the RTC on the
348 TPS65910 chips.
349
350 This driver can also be built as a module. If so, the module
351 will be called rtc-tps65910.
352
Venu Byravarasu90829c02012-10-04 17:14:04 -0700353config RTC_DRV_RC5T583
354 tristate "RICOH 5T583 RTC driver"
355 depends on MFD_RC5T583
356 help
357 If you say yes here you get support for the RTC on the
358 RICOH 5T583 chips.
359
360 This driver can also be built as a module. If so, the module
361 will be called rtc-rc5t583.
362
Byron Bradleyc46288b2008-03-04 14:28:25 -0800363config RTC_DRV_S35390A
364 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700365 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800366 help
367 If you say yes here you will get support for the Seiko
368 Instruments S-35390A.
369
370 This driver can also be built as a module. If so the module
371 will be called rtc-s35390a.
372
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700373config RTC_DRV_FM3130
374 tristate "Ramtron FM3130"
375 help
376 If you say Y here you will get support for the
377 Ramtron FM3130 RTC chips.
378 Ramtron FM3130 is a chip with two separate devices inside,
379 RTC clock and FRAM. This driver provides only RTC functionality.
380
381 This driver can also be built as a module. If so the module
382 will be called rtc-fm3130.
383
Martyn Welcha7fa9852008-11-12 13:27:06 -0800384config RTC_DRV_RX8581
385 tristate "Epson RX-8581"
386 help
387 If you say yes here you will get support for the Epson RX-8581.
388
389 This driver can also be built as a module. If so the module
390 will be called rtc-rx8581.
391
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700392config RTC_DRV_RX8025
393 tristate "Epson RX-8025SA/NB"
394 help
395 If you say yes here you get support for the Epson
396 RX-8025SA/NB RTC chips.
397
398 This driver can also be built as a module. If so, the module
399 will be called rtc-rx8025.
400
Mike Rapoportae3551f2011-05-26 16:25:04 -0700401config RTC_DRV_EM3027
402 tristate "EM Microelectronic EM3027"
403 help
404 If you say yes here you get support for the EM
405 Microelectronic EM3027 RTC chips.
406
407 This driver can also be built as a module. If so, the module
408 will be called rtc-em3027.
409
Heiko Schocher52365232011-05-26 16:25:05 -0700410config RTC_DRV_RV3029C2
411 tristate "Micro Crystal RTC"
412 help
413 If you say yes here you get support for the Micro Crystal
414 RV3029-C2 RTC chips.
415
416 This driver can also be built as a module. If so, the module
417 will be called rtc-rv3029c2.
418
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700419endif # I2C
420
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700421comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700422
423if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700424
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700425config RTC_DRV_M41T93
426 tristate "ST M41T93"
427 help
428 If you say yes here you will get support for the
429 ST M41T93 SPI RTC chip.
430
431 This driver can also be built as a module. If so, the module
432 will be called rtc-m41t93.
433
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700434config RTC_DRV_M41T94
435 tristate "ST M41T94"
436 help
437 If you say yes here you will get support for the
438 ST M41T94 SPI RTC chip.
439
440 This driver can also be built as a module. If so, the module
441 will be called rtc-m41t94.
442
David Brownell53e84b62008-07-23 21:30:36 -0700443config RTC_DRV_DS1305
444 tristate "Dallas/Maxim DS1305/DS1306"
445 help
446 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800447 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700448 charger, alarms, and NVRAM in addition to the clock.
449
450 This driver can also be built as a module. If so, the module
451 will be called rtc-ds1305.
452
Mark Jackson06de1802008-11-12 13:27:07 -0800453config RTC_DRV_DS1390
454 tristate "Dallas/Maxim DS1390/93/94"
455 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800456 If you say yes here you get support for the
457 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800458
459 This driver only supports the RTC feature, and not other chip
460 features such as alarms and trickle charging.
461
462 This driver can also be built as a module. If so, the module
463 will be called rtc-ds1390.
464
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800465config RTC_DRV_MAX6902
466 tristate "Maxim MAX6902"
467 help
468 If you say yes here you will get support for the
469 Maxim MAX6902 SPI RTC chip.
470
471 This driver can also be built as a module. If so, the module
472 will be called rtc-max6902.
473
Magnus Damm2805b962008-02-06 01:38:53 -0800474config RTC_DRV_R9701
475 tristate "Epson RTC-9701JE"
476 help
477 If you say yes here you will get support for the
478 Epson RTC-9701JE SPI RTC chip.
479
480 This driver can also be built as a module. If so, the module
481 will be called rtc-r9701.
482
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700483config RTC_DRV_RS5C348
484 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700485 help
486 If you say yes here you get support for the
487 Ricoh RS5C348A and RS5C348B RTC chips.
488
489 This driver can also be built as a module. If so, the module
490 will be called rtc-rs5c348.
491
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700492config RTC_DRV_DS3234
493 tristate "Maxim/Dallas DS3234"
494 help
495 If you say yes here you get support for the
496 Maxim/Dallas DS3234 SPI RTC chip.
497
498 This driver can also be built as a module. If so, the module
499 will be called rtc-ds3234.
500
Chris Verges7f3923a2009-09-22 16:46:20 -0700501config RTC_DRV_PCF2123
502 tristate "NXP PCF2123"
503 help
504 If you say yes here you get support for the NXP PCF2123
505 RTC chip.
506
507 This driver can also be built as a module. If so, the module
508 will be called rtc-pcf2123.
509
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700510endif # SPI_MASTER
511
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700512comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800513
David Brownell7be2c7c2007-02-10 01:46:02 -0800514# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
515# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
516# global rtc_lock ... it's not yet just another platform_device.
517
518config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700519 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700520 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700521 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800522 help
523 Say "yes" here to get direct support for the real time clock
524 found in every PC or ACPI-based system, and some other boards.
525 Specifically the original MC146818, compatibles like those in
526 PC south bridges, the DS12887 or M48T86, some multifunction
527 or LPC bus chips, and so on.
528
529 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800530 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800531 you can safely enable this driver if you don't know whether
532 or not your board has this kind of hardware.
533
534 This driver can also be built as a module. If so, the module
535 will be called rtc-cmos.
536
Feng Tang0146f262010-11-10 17:29:17 +0000537config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000538 tristate "Virtual RTC for Intel MID platforms"
539 depends on X86_INTEL_MID
540 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000541
542 help
543 Say "yes" here to get direct support for the real time clock
544 found on Moorestown platforms. The VRTC is a emulated RTC that
545 derives its clock source from a real RTC in the PMIC. The MC146818
546 style programming interface is mostly conserved, but any
547 updates are done via IPC calls to the system controller FW.
548
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700549config RTC_DRV_DS1216
550 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700551 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700552 help
553 If you say yes here you get support for the Dallas DS1216 RTC chips.
554
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200555config RTC_DRV_DS1286
556 tristate "Dallas DS1286"
557 help
558 If you say yes here you get support for the Dallas DS1286 RTC chips.
559
Paul Mundt739d3402008-02-06 01:38:44 -0800560config RTC_DRV_DS1302
561 tristate "Dallas DS1302"
562 depends on SH_SECUREEDGE5410
563 help
564 If you say yes here you get support for the Dallas DS1302 RTC chips.
565
Andrew Sharp8f267952008-02-06 01:38:46 -0800566config RTC_DRV_DS1511
567 tristate "Dallas DS1511"
Andrew Sharp8f267952008-02-06 01:38:46 -0800568 help
569 If you say yes here you get support for the
570 Dallas DS1511 timekeeping/watchdog chip.
571
572 This driver can also be built as a module. If so, the module
573 will be called rtc-ds1511.
574
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700575config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800576 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700577 help
578 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800579 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700580
581 This driver can also be built as a module. If so, the module
582 will be called rtc-ds1553.
583
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800584config RTC_DRV_DS1742
585 tristate "Maxim/Dallas DS1742/1743"
586 help
587 If you say yes here you get support for the
588 Maxim/Dallas DS1742/1743 timekeeping chip.
589
590 This driver can also be built as a module. If so, the module
591 will be called rtc-ds1742.
592
Ashish Jangamfef931f2012-03-23 15:02:36 -0700593config RTC_DRV_DA9052
594 tristate "Dialog DA9052/DA9053 RTC"
595 depends on PMIC_DA9052
596 help
597 Say y here to support the RTC driver for Dialog Semiconductor
598 DA9052-BC and DA9053-AA/Bx PMICs.
599
dann frazier5e3fd9e2009-03-31 15:24:48 -0700600config RTC_DRV_EFI
601 tristate "EFI RTC"
602 depends on IA64
603 help
604 If you say yes here you will get support for the EFI
605 Real Time Clock.
606
607 This driver can also be built as a module. If so, the module
608 will be called rtc-efi.
609
Thomas Hommel02964112007-07-21 04:37:58 -0700610config RTC_DRV_STK17TA8
611 tristate "Simtek STK17TA8"
Thomas Hommel02964112007-07-21 04:37:58 -0700612 help
613 If you say yes here you get support for the
614 Simtek STK17TA8 timekeeping chip.
615
616 This driver can also be built as a module. If so, the module
617 will be called rtc-stk17ta8.
618
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700619config RTC_DRV_M48T86
620 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700621 help
622 If you say Y here you will get support for the
623 ST M48T86 and Dallas DS12887 RTC chips.
624
625 This driver can also be built as a module. If so, the module
626 will be called rtc-m48t86.
627
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200628config RTC_DRV_M48T35
629 tristate "ST M48T35"
630 help
631 If you say Y here you will get support for the
632 ST M48T35 RTC chip.
633
634 This driver can also be built as a module, if so, the module
635 will be called "rtc-m48t35".
636
Mark Zhan2e774c72007-07-17 04:05:05 -0700637config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700638 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700639 help
640 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700641 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
642
643 These chips are usually found in Sun SPARC and UltraSPARC
644 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700645
646 This driver can also be built as a module, if so, the module
647 will be called "rtc-m48t59".
648
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100649config RTC_DRV_MSM6242
650 tristate "Oki MSM6242"
651 help
652 If you say yes here you get support for the Oki MSM6242
653 timekeeping chip. It is used in some Amiga models (e.g. A2000).
654
655 This driver can also be built as a module. If so, the module
656 will be called rtc-msm6242.
657
David S. Millercca4c232008-08-29 01:29:53 -0700658config RTC_DRV_BQ4802
659 tristate "TI BQ4802"
660 help
661 If you say Y here you will get support for the TI
662 BQ4802 RTC chip.
663
664 This driver can also be built as a module. If so, the module
665 will be called rtc-bq4802.
666
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100667config RTC_DRV_RP5C01
668 tristate "Ricoh RP5C01"
669 help
670 If you say yes here you get support for the Ricoh RP5C01
671 timekeeping chip. It is used in some Amiga models (e.g. A3000
672 and A4000).
673
674 This driver can also be built as a module. If so, the module
675 will be called rtc-rp5c01.
676
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700677config RTC_DRV_V3020
678 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700679 help
680 If you say yes here you will get support for the
681 EM Microelectronic v3020 RTC chip.
682
683 This driver can also be built as a module. If so, the module
684 will be called rtc-v3020.
685
Sven Schnelle7418a112012-10-04 17:13:47 -0700686config RTC_DRV_DS2404
687 tristate "Dallas DS2404"
688 help
689 If you say yes here you get support for the
690 Dallas DS2404 RTC chip.
691
692 This driver can also be built as a module. If so, the module
693 will be called rtc-ds2404.
694
Mark Brown35c86bf2009-08-27 19:59:05 +0200695config RTC_DRV_WM831X
696 tristate "Wolfson Microelectronics WM831x RTC"
697 depends on MFD_WM831X
698 help
699 If you say yes here you will get support for the RTC subsystem
700 of the Wolfson Microelectronics WM831X series PMICs.
701
702 This driver can also be built as a module. If so, the module
703 will be called "rtc-wm831x".
704
Mark Brown077eaf52008-11-12 13:27:04 -0800705config RTC_DRV_WM8350
706 tristate "Wolfson Microelectronics WM8350 RTC"
707 depends on MFD_WM8350
708 help
709 If you say yes here you will get support for the RTC subsystem
710 of the Wolfson Microelectronics WM8350.
711
712 This driver can also be built as a module. If so, the module
713 will be called "rtc-wm8350".
714
Rajeev Kumar0942a712011-05-26 16:25:09 -0700715config RTC_DRV_SPEAR
716 tristate "SPEAR ST RTC"
717 depends on PLAT_SPEAR
718 default y
719 help
720 If you say Y here you will get support for the RTC found on
721 spear
722
Balaji Raoeae854b2009-01-09 01:50:51 +0100723config RTC_DRV_PCF50633
724 depends on MFD_PCF50633
725 tristate "NXP PCF50633 RTC"
726 help
727 If you say yes here you get support for the RTC subsystem of the
728 NXP PCF50633 used in embedded systems.
729
Linus Walleijbd207cf2009-08-30 23:49:04 +0200730config RTC_DRV_AB3100
731 tristate "ST-Ericsson AB3100 RTC"
732 depends on AB3100_CORE
733 default y if AB3100_CORE
734 help
735 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
736 support. This chip contains a battery- and capacitor-backed RTC.
737
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700738config RTC_DRV_AB8500
739 tristate "ST-Ericsson AB8500 RTC"
740 depends on AB8500_CORE
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -0700741 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700742 help
743 Select this to enable the ST-Ericsson AB8500 power management IC RTC
744 support. This chip contains a battery- and capacitor-backed RTC.
745
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800746config RTC_DRV_NUC900
747 tristate "NUC910/NUC920 RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700748 depends on ARCH_W90X900
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800749 help
750 If you say yes here you get support for the RTC subsystem of the
751 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200752
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700753comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700754
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600755config RTC_DRV_DAVINCI
756 tristate "TI DaVinci RTC"
757 depends on ARCH_DAVINCI_DM365
758 help
759 If you say yes here you get support for the RTC on the
760 DaVinci platforms (DM365).
761
762 This driver can also be built as a module. If so, the module
763 will be called rtc-davinci.
764
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700765config RTC_DRV_IMXDI
766 tristate "Freescale IMX DryIce Real Time Clock"
767 depends on SOC_IMX25
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700768 help
769 Support for Freescale IMX DryIce RTC
770
771 This driver can also be built as a module, if so, the module
772 will be called "rtc-imxdi".
773
David Brownelldb68b182006-12-06 20:38:36 -0800774config RTC_DRV_OMAP
775 tristate "TI OMAP1"
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800776 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
David Brownelldb68b182006-12-06 20:38:36 -0800777 help
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800778 Say "yes" here to support the real time clock on TI OMAP1 and
779 DA8xx/OMAP-L13x chips. This driver can also be built as a
780 module called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800781
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530782config HAVE_S3C_RTC
783 bool
784 help
785 This will include RTC support for Samsung SoCs. If
786 you want to include RTC support for any machine, kindly
787 select this in the respective mach-XXXX/Kconfig file.
788
Ben Dooks1add6782006-07-01 04:36:26 -0700789config RTC_DRV_S3C
790 tristate "Samsung S3C series SoC RTC"
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900791 depends on ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700792 help
793 RTC (Realtime Clock) driver for the clock inbuilt into the
794 Samsung S3C24XX series of SoCs. This can provide periodic
795 interrupt rates from 1Hz to 64Hz for user programs, and
796 wakeup from Alarm.
797
798 The driver currently supports the common features on all the
799 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
800 and S3C2442.
801
802 This driver can also be build as a module. If so, the module
803 will be called rtc-s3c.
804
Alessandro Zummofd507e22006-03-27 01:16:45 -0800805config RTC_DRV_EP93XX
806 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700807 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800808 help
809 If you say yes here you get support for the
810 RTC embedded in the Cirrus Logic EP93XX processors.
811
812 This driver can also be built as a module. If so, the module
813 will be called rtc-ep93xx.
814
Richard Purdiee842f1c2006-03-27 01:16:46 -0800815config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +0800816 tristate "SA11x0/PXA2xx/PXA910"
817 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -0800818 help
819 If you say Y here you will get access to the real time clock
820 built into your SA11x0 or PXA2xx CPU.
821
822 To compile this driver as a module, choose M here: the
823 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800824
Paul Mundt317a6102006-09-27 17:13:19 +0900825config RTC_DRV_SH
826 tristate "SuperH On-Chip RTC"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700827 depends on SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900828 help
829 Say Y here to enable support for the on-chip RTC found in
830 most SuperH processors.
831
832 To compile this driver as a module, choose M here: the
833 module will be called rtc-sh.
834
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700835config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700836 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700837 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700838 help
839 If you say Y here you will get access to the real time clock
840 built into your NEC VR41XX CPU.
841
842 To compile this driver as a module, choose M here: the
843 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700844
Russell Kinga1909012008-04-20 12:08:36 +0100845config RTC_DRV_PL030
846 tristate "ARM AMBA PL030 RTC"
847 depends on ARM_AMBA
848 help
849 If you say Y here you will get access to ARM AMBA
850 PrimeCell PL030 RTC found on certain ARM SOCs.
851
852 To compile this driver as a module, choose M here: the
853 module will be called rtc-pl030.
854
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700855config RTC_DRV_PL031
856 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700857 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700858 help
859 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700860 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700861
862 To compile this driver as a module, choose M here: the
863 module will be called rtc-pl031.
864
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700865config RTC_DRV_AT32AP700X
866 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700867 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700868 help
869 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
870 AT32AP700x family processors.
871
Andrew Victor7fc39f62006-12-10 02:19:03 -0800872config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200873 tristate "AT91RM9200 or some AT91SAM9 RTC"
Nicolas Ferre938f9702012-03-15 14:38:09 +0100874 depends on ARCH_AT91
Andrew Victor788b1fc2006-06-25 05:48:27 -0700875 help
David Brownell4cdf8542008-02-06 01:38:59 -0800876 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200877 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800878 this is powered by the backup power supply.
879
880config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200881 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800882 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
883 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100884 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
885 (Real Time Timer). These timers are powered by the backup power
886 supply (such as a small coin cell battery), but do not need to
887 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800888
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200889 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
890 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800891
892config RTC_DRV_AT91SAM9_RTT
893 int
894 range 0 1
895 default 0
896 prompt "RTT module Number" if ARCH_AT91SAM9263
897 depends on RTC_DRV_AT91SAM9
898 help
Alessandro Zummoae64d162009-01-06 14:42:17 -0800899 More than one RTT module is available. You can choose which
900 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -0800901 OK to use, though some systems use that for non-RTC purposes.
902
903config RTC_DRV_AT91SAM9_GPBR
904 int
905 range 0 3 if !ARCH_AT91SAM9263
906 range 0 15 if ARCH_AT91SAM9263
907 default 0
908 prompt "Backup Register Number"
909 depends on RTC_DRV_AT91SAM9
910 help
911 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -0800912 Registers (GPBRs) as well as the RTT. You can choose which one
913 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -0800914 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -0700915
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800916config RTC_DRV_AU1XXX
917 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +0200918 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800919 help
920 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
921 counter) to be used as a RTC.
922
923 This driver can also be built as a module. If so, the module
924 will be called rtc-au1xxx.
925
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700926config RTC_DRV_BFIN
927 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -0700928 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700929 help
930 If you say yes here you will get support for the
931 Blackfin On-Chip Real Time Clock.
932
933 This driver can also be built as a module. If so, the module
934 will be called rtc-bfin.
935
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700936config RTC_DRV_RS5C313
937 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700938 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700939 help
940 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
941
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100942config RTC_DRV_GENERIC
943 tristate "Generic RTC support"
944 # Please consider writing a new RTC driver instead of using the generic
945 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +0900946 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +0000947 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100948 Say Y or M here to enable RTC support on systems using the generic
949 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +0000950 just say Y.
951
Robert Jarzmikdc944362009-01-06 14:42:14 -0800952config RTC_DRV_PXA
953 tristate "PXA27x/PXA3xx"
954 depends on ARCH_PXA
955 help
956 If you say Y here you will get access to the real time clock
957 built into your PXA27x or PXA3xx CPU.
958
959 This RTC driver uses PXA RTC registers available since pxa27x
960 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
961
Alexey Charkovf77fbdf2011-05-26 16:25:03 -0700962config RTC_DRV_VT8500
963 tristate "VIA/WonderMedia 85xx SoC RTC"
964 depends on ARCH_VT8500
965 help
966 If you say Y here you will get access to the real time clock
967 built into your VIA VT8500 SoC or its relatives.
968
Robert Jarzmikdc944362009-01-06 14:42:14 -0800969
David S. Miller7a138ed2008-08-29 01:32:43 -0700970config RTC_DRV_SUN4V
971 bool "SUN4V Hypervisor RTC"
972 depends on SPARC64
973 help
974 If you say Y here you will get support for the Hypervisor
975 based RTC on SUN4V systems.
976
David S. Millerde2cf332008-08-28 23:02:36 -0700977config RTC_DRV_STARFIRE
978 bool "Starfire RTC"
979 depends on SPARC64
980 help
981 If you say Y here you will get support for the RTC found on
982 Starfire systems.
983
Atsushi Nemoto0e149232009-01-06 14:42:22 -0800984config RTC_DRV_TX4939
985 tristate "TX4939 SoC"
986 depends on SOC_TX4939
987 help
988 Driver for the internal RTC (Realtime Clock) module found on
989 Toshiba TX4939 SoC.
990
Saeed Bisharadefb4512009-01-06 14:42:24 -0800991config RTC_DRV_MV
992 tristate "Marvell SoC RTC"
Saeed Bisharada432432009-11-24 19:33:53 +0200993 depends on ARCH_KIRKWOOD || ARCH_DOVE
Saeed Bisharadefb4512009-01-06 14:42:24 -0800994 help
995 If you say yes here you will get support for the in-chip RTC
996 that can be found in some of Marvell's SoC devices, such as
997 the Kirkwood 88F6281 and 88F6192.
998
999 This driver can also be built as a module. If so, the module
1000 will be called rtc-mv.
1001
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +01001002config RTC_DRV_PS3
1003 tristate "PS3 RTC"
1004 depends on PPC_PS3
1005 help
1006 If you say yes here you will get support for the RTC on PS3.
1007
1008 This driver can also be built as a module. If so, the module
1009 will be called rtc-ps3.
1010
Linus Walleijaa958f52009-09-22 16:46:24 -07001011config RTC_DRV_COH901331
1012 tristate "ST-Ericsson COH 901 331 RTC"
1013 depends on ARCH_U300
1014 help
1015 If you say Y here you will get access to ST-Ericsson
1016 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1017 Platforms.
1018
1019 This driver can also be built as a module. If so, the module
1020 will be called "rtc-coh901331".
1021
1022
dmitry pervushindf17f632009-09-22 16:46:26 -07001023config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001024 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1025 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -07001026 help
1027 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001028 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001029
1030 This driver can also be built as a module. If so, the module
1031 will be called rtc-stmp3xxx.
1032
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001033config RTC_DRV_PCAP
1034 tristate "PCAP RTC"
1035 depends on EZX_PCAP
1036 help
1037 If you say Y here you will get support for the RTC found on
1038 the PCAP2 ASIC used on some Motorola phones.
1039
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001040config RTC_DRV_MC13XXX
1041 depends on MFD_MC13XXX
1042 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001043 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001044 This enables support for the RTCs found on Freescale's PMICs
1045 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001046
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001047config RTC_DRV_MPC5121
1048 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001049 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001050 help
1051 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001052 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001053
1054 This driver can also be built as a module. If so, the module
1055 will be called rtc-mpc5121.
1056
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001057config RTC_DRV_JZ4740
1058 tristate "Ingenic JZ4740 SoC"
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001059 depends on MACH_JZ4740
1060 help
1061 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1062 controller.
1063
1064 This driver can also be buillt as a module. If so, the module
1065 will be called rtc-jz4740.
1066
Kevin Wells9aa449b2010-10-27 15:33:01 -07001067config RTC_DRV_LPC32XX
1068 depends on ARCH_LPC32XX
1069 tristate "NXP LPC32XX RTC"
1070 help
1071 This enables support for the NXP RTC in the LPC32XX
1072
1073 This driver can also be buillt as a module. If so, the module
1074 will be called rtc-lpc32xx.
1075
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001076config RTC_DRV_PM8XXX
1077 tristate "Qualcomm PMIC8XXX RTC"
1078 depends on MFD_PM8XXX
1079 help
1080 If you say yes here you get support for the
1081 Qualcomm PMIC8XXX RTC.
1082
1083 To compile this driver as a module, choose M here: the
1084 module will be called rtc-pm8xxx.
1085
Andrew Chewff859ba2011-03-22 16:34:55 -07001086config RTC_DRV_TEGRA
1087 tristate "NVIDIA Tegra Internal RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -07001088 depends on ARCH_TEGRA
Andrew Chewff859ba2011-03-22 16:34:55 -07001089 help
1090 If you say yes here you get support for the
1091 Tegra 200 series internal RTC module.
1092
1093 This drive can also be built as a module. If so, the module
1094 will be called rtc-tegra.
1095
Chris Metcalfdd196a22011-05-09 13:28:43 -04001096config RTC_DRV_TILE
1097 tristate "Tilera hypervisor RTC support"
1098 depends on TILE
1099 help
1100 Enable support for the Linux driver side of the Tilera
1101 hypervisor's real-time clock interface.
1102
Guan Xuetao2809e802011-05-26 16:43:27 +08001103config RTC_DRV_PUV3
1104 tristate "PKUnity v3 RTC support"
1105 depends on ARCH_PUV3
1106 help
1107 This enables support for the RTC in the PKUnity-v3 SoCs.
1108
1109 This drive can also be built as a module. If so, the module
1110 will be called rtc-puv3.
1111
zhao zhangb4f0b882012-03-23 15:02:32 -07001112config RTC_DRV_LOONGSON1
1113 tristate "loongson1 RTC support"
1114 depends on MACH_LOONGSON1
1115 help
1116 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1117 counter) to be used as a RTC.
1118
1119 This driver can also be built as a module. If so, the module
1120 will be called rtc-ls1x.
1121
Fabio Estevam79811592012-05-29 15:07:37 -07001122config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001123 tristate "Freescale MXC Real Time Clock"
1124 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001125 help
1126 If you say yes here you get support for the Freescale MXC
1127 RTC module.
1128
1129 This driver can also be built as a module, if so, the module
1130 will be called "rtc-mxc".
1131
Shawn Guo179a5022012-10-04 17:13:49 -07001132config RTC_DRV_SNVS
1133 tristate "Freescale SNVS RTC support"
1134 depends on HAS_IOMEM
1135 depends on OF
1136 help
1137 If you say yes here you get support for the Freescale SNVS
1138 Low Power (LP) RTC module.
1139
1140 This driver can also be built as a module, if so, the module
1141 will be called "rtc-snvs".
1142
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001143endif # RTC_CLASS