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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
Byron Bradleyc46288b2008-03-04 14:28:25 -0800353config RTC_DRV_S35390A
354 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700355 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800356 help
357 If you say yes here you will get support for the Seiko
358 Instruments S-35390A.
359
360 This driver can also be built as a module. If so the module
361 will be called rtc-s35390a.
362
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700363config RTC_DRV_FM3130
364 tristate "Ramtron FM3130"
365 help
366 If you say Y here you will get support for the
367 Ramtron FM3130 RTC chips.
368 Ramtron FM3130 is a chip with two separate devices inside,
369 RTC clock and FRAM. This driver provides only RTC functionality.
370
371 This driver can also be built as a module. If so the module
372 will be called rtc-fm3130.
373
Martyn Welcha7fa9852008-11-12 13:27:06 -0800374config RTC_DRV_RX8581
375 tristate "Epson RX-8581"
376 help
377 If you say yes here you will get support for the Epson RX-8581.
378
379 This driver can also be built as a module. If so the module
380 will be called rtc-rx8581.
381
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700382config RTC_DRV_RX8025
383 tristate "Epson RX-8025SA/NB"
384 help
385 If you say yes here you get support for the Epson
386 RX-8025SA/NB RTC chips.
387
388 This driver can also be built as a module. If so, the module
389 will be called rtc-rx8025.
390
Mike Rapoportae3551f2011-05-26 16:25:04 -0700391config RTC_DRV_EM3027
392 tristate "EM Microelectronic EM3027"
393 help
394 If you say yes here you get support for the EM
395 Microelectronic EM3027 RTC chips.
396
397 This driver can also be built as a module. If so, the module
398 will be called rtc-em3027.
399
Heiko Schocher52365232011-05-26 16:25:05 -0700400config RTC_DRV_RV3029C2
401 tristate "Micro Crystal RTC"
402 help
403 If you say yes here you get support for the Micro Crystal
404 RV3029-C2 RTC chips.
405
406 This driver can also be built as a module. If so, the module
407 will be called rtc-rv3029c2.
408
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700409endif # I2C
410
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700411comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700412
413if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700414
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700415config RTC_DRV_M41T93
416 tristate "ST M41T93"
417 help
418 If you say yes here you will get support for the
419 ST M41T93 SPI RTC chip.
420
421 This driver can also be built as a module. If so, the module
422 will be called rtc-m41t93.
423
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700424config RTC_DRV_M41T94
425 tristate "ST M41T94"
426 help
427 If you say yes here you will get support for the
428 ST M41T94 SPI RTC chip.
429
430 This driver can also be built as a module. If so, the module
431 will be called rtc-m41t94.
432
David Brownell53e84b62008-07-23 21:30:36 -0700433config RTC_DRV_DS1305
434 tristate "Dallas/Maxim DS1305/DS1306"
435 help
436 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800437 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700438 charger, alarms, and NVRAM in addition to the clock.
439
440 This driver can also be built as a module. If so, the module
441 will be called rtc-ds1305.
442
Mark Jackson06de1802008-11-12 13:27:07 -0800443config RTC_DRV_DS1390
444 tristate "Dallas/Maxim DS1390/93/94"
445 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800446 If you say yes here you get support for the
447 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800448
449 This driver only supports the RTC feature, and not other chip
450 features such as alarms and trickle charging.
451
452 This driver can also be built as a module. If so, the module
453 will be called rtc-ds1390.
454
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800455config RTC_DRV_MAX6902
456 tristate "Maxim MAX6902"
457 help
458 If you say yes here you will get support for the
459 Maxim MAX6902 SPI RTC chip.
460
461 This driver can also be built as a module. If so, the module
462 will be called rtc-max6902.
463
Magnus Damm2805b962008-02-06 01:38:53 -0800464config RTC_DRV_R9701
465 tristate "Epson RTC-9701JE"
466 help
467 If you say yes here you will get support for the
468 Epson RTC-9701JE SPI RTC chip.
469
470 This driver can also be built as a module. If so, the module
471 will be called rtc-r9701.
472
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700473config RTC_DRV_RS5C348
474 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700475 help
476 If you say yes here you get support for the
477 Ricoh RS5C348A and RS5C348B RTC chips.
478
479 This driver can also be built as a module. If so, the module
480 will be called rtc-rs5c348.
481
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700482config RTC_DRV_DS3234
483 tristate "Maxim/Dallas DS3234"
484 help
485 If you say yes here you get support for the
486 Maxim/Dallas DS3234 SPI RTC chip.
487
488 This driver can also be built as a module. If so, the module
489 will be called rtc-ds3234.
490
Chris Verges7f3923a2009-09-22 16:46:20 -0700491config RTC_DRV_PCF2123
492 tristate "NXP PCF2123"
493 help
494 If you say yes here you get support for the NXP PCF2123
495 RTC chip.
496
497 This driver can also be built as a module. If so, the module
498 will be called rtc-pcf2123.
499
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700500endif # SPI_MASTER
501
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700502comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800503
David Brownell7be2c7c2007-02-10 01:46:02 -0800504# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
505# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
506# global rtc_lock ... it's not yet just another platform_device.
507
508config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700509 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700510 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700511 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800512 help
513 Say "yes" here to get direct support for the real time clock
514 found in every PC or ACPI-based system, and some other boards.
515 Specifically the original MC146818, compatibles like those in
516 PC south bridges, the DS12887 or M48T86, some multifunction
517 or LPC bus chips, and so on.
518
519 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800520 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800521 you can safely enable this driver if you don't know whether
522 or not your board has this kind of hardware.
523
524 This driver can also be built as a module. If so, the module
525 will be called rtc-cmos.
526
Feng Tang0146f262010-11-10 17:29:17 +0000527config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000528 tristate "Virtual RTC for Intel MID platforms"
529 depends on X86_INTEL_MID
530 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000531
532 help
533 Say "yes" here to get direct support for the real time clock
534 found on Moorestown platforms. The VRTC is a emulated RTC that
535 derives its clock source from a real RTC in the PMIC. The MC146818
536 style programming interface is mostly conserved, but any
537 updates are done via IPC calls to the system controller FW.
538
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700539config RTC_DRV_DS1216
540 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700541 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700542 help
543 If you say yes here you get support for the Dallas DS1216 RTC chips.
544
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200545config RTC_DRV_DS1286
546 tristate "Dallas DS1286"
547 help
548 If you say yes here you get support for the Dallas DS1286 RTC chips.
549
Paul Mundt739d3402008-02-06 01:38:44 -0800550config RTC_DRV_DS1302
551 tristate "Dallas DS1302"
552 depends on SH_SECUREEDGE5410
553 help
554 If you say yes here you get support for the Dallas DS1302 RTC chips.
555
Andrew Sharp8f267952008-02-06 01:38:46 -0800556config RTC_DRV_DS1511
557 tristate "Dallas DS1511"
Andrew Sharp8f267952008-02-06 01:38:46 -0800558 help
559 If you say yes here you get support for the
560 Dallas DS1511 timekeeping/watchdog chip.
561
562 This driver can also be built as a module. If so, the module
563 will be called rtc-ds1511.
564
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700565config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800566 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700567 help
568 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800569 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700570
571 This driver can also be built as a module. If so, the module
572 will be called rtc-ds1553.
573
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800574config RTC_DRV_DS1742
575 tristate "Maxim/Dallas DS1742/1743"
576 help
577 If you say yes here you get support for the
578 Maxim/Dallas DS1742/1743 timekeeping chip.
579
580 This driver can also be built as a module. If so, the module
581 will be called rtc-ds1742.
582
Ashish Jangamfef931f2012-03-23 15:02:36 -0700583config RTC_DRV_DA9052
584 tristate "Dialog DA9052/DA9053 RTC"
585 depends on PMIC_DA9052
586 help
587 Say y here to support the RTC driver for Dialog Semiconductor
588 DA9052-BC and DA9053-AA/Bx PMICs.
589
dann frazier5e3fd9e2009-03-31 15:24:48 -0700590config RTC_DRV_EFI
591 tristate "EFI RTC"
592 depends on IA64
593 help
594 If you say yes here you will get support for the EFI
595 Real Time Clock.
596
597 This driver can also be built as a module. If so, the module
598 will be called rtc-efi.
599
Thomas Hommel02964112007-07-21 04:37:58 -0700600config RTC_DRV_STK17TA8
601 tristate "Simtek STK17TA8"
Thomas Hommel02964112007-07-21 04:37:58 -0700602 help
603 If you say yes here you get support for the
604 Simtek STK17TA8 timekeeping chip.
605
606 This driver can also be built as a module. If so, the module
607 will be called rtc-stk17ta8.
608
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700609config RTC_DRV_M48T86
610 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700611 help
612 If you say Y here you will get support for the
613 ST M48T86 and Dallas DS12887 RTC chips.
614
615 This driver can also be built as a module. If so, the module
616 will be called rtc-m48t86.
617
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200618config RTC_DRV_M48T35
619 tristate "ST M48T35"
620 help
621 If you say Y here you will get support for the
622 ST M48T35 RTC chip.
623
624 This driver can also be built as a module, if so, the module
625 will be called "rtc-m48t35".
626
Mark Zhan2e774c72007-07-17 04:05:05 -0700627config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700628 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700629 help
630 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700631 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
632
633 These chips are usually found in Sun SPARC and UltraSPARC
634 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700635
636 This driver can also be built as a module, if so, the module
637 will be called "rtc-m48t59".
638
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100639config RTC_DRV_MSM6242
640 tristate "Oki MSM6242"
641 help
642 If you say yes here you get support for the Oki MSM6242
643 timekeeping chip. It is used in some Amiga models (e.g. A2000).
644
645 This driver can also be built as a module. If so, the module
646 will be called rtc-msm6242.
647
David S. Millercca4c232008-08-29 01:29:53 -0700648config RTC_DRV_BQ4802
649 tristate "TI BQ4802"
650 help
651 If you say Y here you will get support for the TI
652 BQ4802 RTC chip.
653
654 This driver can also be built as a module. If so, the module
655 will be called rtc-bq4802.
656
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100657config RTC_DRV_RP5C01
658 tristate "Ricoh RP5C01"
659 help
660 If you say yes here you get support for the Ricoh RP5C01
661 timekeeping chip. It is used in some Amiga models (e.g. A3000
662 and A4000).
663
664 This driver can also be built as a module. If so, the module
665 will be called rtc-rp5c01.
666
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700667config RTC_DRV_V3020
668 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700669 help
670 If you say yes here you will get support for the
671 EM Microelectronic v3020 RTC chip.
672
673 This driver can also be built as a module. If so, the module
674 will be called rtc-v3020.
675
Sven Schnelle7418a112012-10-04 17:13:47 -0700676config RTC_DRV_DS2404
677 tristate "Dallas DS2404"
678 help
679 If you say yes here you get support for the
680 Dallas DS2404 RTC chip.
681
682 This driver can also be built as a module. If so, the module
683 will be called rtc-ds2404.
684
Mark Brown35c86bf2009-08-27 19:59:05 +0200685config RTC_DRV_WM831X
686 tristate "Wolfson Microelectronics WM831x RTC"
687 depends on MFD_WM831X
688 help
689 If you say yes here you will get support for the RTC subsystem
690 of the Wolfson Microelectronics WM831X series PMICs.
691
692 This driver can also be built as a module. If so, the module
693 will be called "rtc-wm831x".
694
Mark Brown077eaf52008-11-12 13:27:04 -0800695config RTC_DRV_WM8350
696 tristate "Wolfson Microelectronics WM8350 RTC"
697 depends on MFD_WM8350
698 help
699 If you say yes here you will get support for the RTC subsystem
700 of the Wolfson Microelectronics WM8350.
701
702 This driver can also be built as a module. If so, the module
703 will be called "rtc-wm8350".
704
Rajeev Kumar0942a712011-05-26 16:25:09 -0700705config RTC_DRV_SPEAR
706 tristate "SPEAR ST RTC"
707 depends on PLAT_SPEAR
708 default y
709 help
710 If you say Y here you will get support for the RTC found on
711 spear
712
Balaji Raoeae854b2009-01-09 01:50:51 +0100713config RTC_DRV_PCF50633
714 depends on MFD_PCF50633
715 tristate "NXP PCF50633 RTC"
716 help
717 If you say yes here you get support for the RTC subsystem of the
718 NXP PCF50633 used in embedded systems.
719
Linus Walleijbd207cf2009-08-30 23:49:04 +0200720config RTC_DRV_AB3100
721 tristate "ST-Ericsson AB3100 RTC"
722 depends on AB3100_CORE
723 default y if AB3100_CORE
724 help
725 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
726 support. This chip contains a battery- and capacitor-backed RTC.
727
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700728config RTC_DRV_AB8500
729 tristate "ST-Ericsson AB8500 RTC"
730 depends on AB8500_CORE
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -0700731 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700732 help
733 Select this to enable the ST-Ericsson AB8500 power management IC RTC
734 support. This chip contains a battery- and capacitor-backed RTC.
735
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800736config RTC_DRV_NUC900
737 tristate "NUC910/NUC920 RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700738 depends on ARCH_W90X900
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800739 help
740 If you say yes here you get support for the RTC subsystem of the
741 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200742
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700743comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700744
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600745config RTC_DRV_DAVINCI
746 tristate "TI DaVinci RTC"
747 depends on ARCH_DAVINCI_DM365
748 help
749 If you say yes here you get support for the RTC on the
750 DaVinci platforms (DM365).
751
752 This driver can also be built as a module. If so, the module
753 will be called rtc-davinci.
754
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700755config RTC_DRV_IMXDI
756 tristate "Freescale IMX DryIce Real Time Clock"
757 depends on SOC_IMX25
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700758 help
759 Support for Freescale IMX DryIce RTC
760
761 This driver can also be built as a module, if so, the module
762 will be called "rtc-imxdi".
763
David Brownelldb68b182006-12-06 20:38:36 -0800764config RTC_DRV_OMAP
765 tristate "TI OMAP1"
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800766 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
David Brownelldb68b182006-12-06 20:38:36 -0800767 help
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800768 Say "yes" here to support the real time clock on TI OMAP1 and
769 DA8xx/OMAP-L13x chips. This driver can also be built as a
770 module called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800771
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530772config HAVE_S3C_RTC
773 bool
774 help
775 This will include RTC support for Samsung SoCs. If
776 you want to include RTC support for any machine, kindly
777 select this in the respective mach-XXXX/Kconfig file.
778
Ben Dooks1add6782006-07-01 04:36:26 -0700779config RTC_DRV_S3C
780 tristate "Samsung S3C series SoC RTC"
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900781 depends on ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700782 help
783 RTC (Realtime Clock) driver for the clock inbuilt into the
784 Samsung S3C24XX series of SoCs. This can provide periodic
785 interrupt rates from 1Hz to 64Hz for user programs, and
786 wakeup from Alarm.
787
788 The driver currently supports the common features on all the
789 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
790 and S3C2442.
791
792 This driver can also be build as a module. If so, the module
793 will be called rtc-s3c.
794
Alessandro Zummofd507e22006-03-27 01:16:45 -0800795config RTC_DRV_EP93XX
796 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700797 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800798 help
799 If you say yes here you get support for the
800 RTC embedded in the Cirrus Logic EP93XX processors.
801
802 This driver can also be built as a module. If so, the module
803 will be called rtc-ep93xx.
804
Richard Purdiee842f1c2006-03-27 01:16:46 -0800805config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +0800806 tristate "SA11x0/PXA2xx/PXA910"
807 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -0800808 help
809 If you say Y here you will get access to the real time clock
810 built into your SA11x0 or PXA2xx CPU.
811
812 To compile this driver as a module, choose M here: the
813 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800814
Paul Mundt317a6102006-09-27 17:13:19 +0900815config RTC_DRV_SH
816 tristate "SuperH On-Chip RTC"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -0700817 depends on SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900818 help
819 Say Y here to enable support for the on-chip RTC found in
820 most SuperH processors.
821
822 To compile this driver as a module, choose M here: the
823 module will be called rtc-sh.
824
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700825config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700826 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700827 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700828 help
829 If you say Y here you will get access to the real time clock
830 built into your NEC VR41XX CPU.
831
832 To compile this driver as a module, choose M here: the
833 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700834
Russell Kinga1909012008-04-20 12:08:36 +0100835config RTC_DRV_PL030
836 tristate "ARM AMBA PL030 RTC"
837 depends on ARM_AMBA
838 help
839 If you say Y here you will get access to ARM AMBA
840 PrimeCell PL030 RTC found on certain ARM SOCs.
841
842 To compile this driver as a module, choose M here: the
843 module will be called rtc-pl030.
844
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700845config RTC_DRV_PL031
846 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700847 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700848 help
849 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700850 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700851
852 To compile this driver as a module, choose M here: the
853 module will be called rtc-pl031.
854
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700855config RTC_DRV_AT32AP700X
856 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700857 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700858 help
859 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
860 AT32AP700x family processors.
861
Andrew Victor7fc39f62006-12-10 02:19:03 -0800862config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200863 tristate "AT91RM9200 or some AT91SAM9 RTC"
Nicolas Ferre938f9702012-03-15 14:38:09 +0100864 depends on ARCH_AT91
Andrew Victor788b1fc2006-06-25 05:48:27 -0700865 help
David Brownell4cdf8542008-02-06 01:38:59 -0800866 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200867 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800868 this is powered by the backup power supply.
869
870config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200871 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800872 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
873 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100874 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
875 (Real Time Timer). These timers are powered by the backup power
876 supply (such as a small coin cell battery), but do not need to
877 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800878
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200879 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
880 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800881
882config RTC_DRV_AT91SAM9_RTT
883 int
884 range 0 1
885 default 0
886 prompt "RTT module Number" if ARCH_AT91SAM9263
887 depends on RTC_DRV_AT91SAM9
888 help
Alessandro Zummoae64d162009-01-06 14:42:17 -0800889 More than one RTT module is available. You can choose which
890 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -0800891 OK to use, though some systems use that for non-RTC purposes.
892
893config RTC_DRV_AT91SAM9_GPBR
894 int
895 range 0 3 if !ARCH_AT91SAM9263
896 range 0 15 if ARCH_AT91SAM9263
897 default 0
898 prompt "Backup Register Number"
899 depends on RTC_DRV_AT91SAM9
900 help
901 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -0800902 Registers (GPBRs) as well as the RTT. You can choose which one
903 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -0800904 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -0700905
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800906config RTC_DRV_AU1XXX
907 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +0200908 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800909 help
910 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
911 counter) to be used as a RTC.
912
913 This driver can also be built as a module. If so, the module
914 will be called rtc-au1xxx.
915
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700916config RTC_DRV_BFIN
917 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -0700918 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700919 help
920 If you say yes here you will get support for the
921 Blackfin On-Chip Real Time Clock.
922
923 This driver can also be built as a module. If so, the module
924 will be called rtc-bfin.
925
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700926config RTC_DRV_RS5C313
927 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700928 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700929 help
930 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
931
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100932config RTC_DRV_GENERIC
933 tristate "Generic RTC support"
934 # Please consider writing a new RTC driver instead of using the generic
935 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +0900936 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +0000937 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100938 Say Y or M here to enable RTC support on systems using the generic
939 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +0000940 just say Y.
941
Robert Jarzmikdc944362009-01-06 14:42:14 -0800942config RTC_DRV_PXA
943 tristate "PXA27x/PXA3xx"
944 depends on ARCH_PXA
945 help
946 If you say Y here you will get access to the real time clock
947 built into your PXA27x or PXA3xx CPU.
948
949 This RTC driver uses PXA RTC registers available since pxa27x
950 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
951
Alexey Charkovf77fbdf2011-05-26 16:25:03 -0700952config RTC_DRV_VT8500
953 tristate "VIA/WonderMedia 85xx SoC RTC"
954 depends on ARCH_VT8500
955 help
956 If you say Y here you will get access to the real time clock
957 built into your VIA VT8500 SoC or its relatives.
958
Robert Jarzmikdc944362009-01-06 14:42:14 -0800959
David S. Miller7a138ed2008-08-29 01:32:43 -0700960config RTC_DRV_SUN4V
961 bool "SUN4V Hypervisor RTC"
962 depends on SPARC64
963 help
964 If you say Y here you will get support for the Hypervisor
965 based RTC on SUN4V systems.
966
David S. Millerde2cf332008-08-28 23:02:36 -0700967config RTC_DRV_STARFIRE
968 bool "Starfire RTC"
969 depends on SPARC64
970 help
971 If you say Y here you will get support for the RTC found on
972 Starfire systems.
973
Atsushi Nemoto0e149232009-01-06 14:42:22 -0800974config RTC_DRV_TX4939
975 tristate "TX4939 SoC"
976 depends on SOC_TX4939
977 help
978 Driver for the internal RTC (Realtime Clock) module found on
979 Toshiba TX4939 SoC.
980
Saeed Bisharadefb4512009-01-06 14:42:24 -0800981config RTC_DRV_MV
982 tristate "Marvell SoC RTC"
Saeed Bisharada432432009-11-24 19:33:53 +0200983 depends on ARCH_KIRKWOOD || ARCH_DOVE
Saeed Bisharadefb4512009-01-06 14:42:24 -0800984 help
985 If you say yes here you will get support for the in-chip RTC
986 that can be found in some of Marvell's SoC devices, such as
987 the Kirkwood 88F6281 and 88F6192.
988
989 This driver can also be built as a module. If so, the module
990 will be called rtc-mv.
991
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +0100992config RTC_DRV_PS3
993 tristate "PS3 RTC"
994 depends on PPC_PS3
995 help
996 If you say yes here you will get support for the RTC on PS3.
997
998 This driver can also be built as a module. If so, the module
999 will be called rtc-ps3.
1000
Linus Walleijaa958f52009-09-22 16:46:24 -07001001config RTC_DRV_COH901331
1002 tristate "ST-Ericsson COH 901 331 RTC"
1003 depends on ARCH_U300
1004 help
1005 If you say Y here you will get access to ST-Ericsson
1006 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1007 Platforms.
1008
1009 This driver can also be built as a module. If so, the module
1010 will be called "rtc-coh901331".
1011
1012
dmitry pervushindf17f632009-09-22 16:46:26 -07001013config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001014 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1015 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -07001016 help
1017 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001018 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001019
1020 This driver can also be built as a module. If so, the module
1021 will be called rtc-stmp3xxx.
1022
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001023config RTC_DRV_PCAP
1024 tristate "PCAP RTC"
1025 depends on EZX_PCAP
1026 help
1027 If you say Y here you will get support for the RTC found on
1028 the PCAP2 ASIC used on some Motorola phones.
1029
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001030config RTC_DRV_MC13XXX
1031 depends on MFD_MC13XXX
1032 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001033 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001034 This enables support for the RTCs found on Freescale's PMICs
1035 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001036
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001037config RTC_DRV_MPC5121
1038 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001039 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001040 help
1041 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001042 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001043
1044 This driver can also be built as a module. If so, the module
1045 will be called rtc-mpc5121.
1046
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001047config RTC_DRV_JZ4740
1048 tristate "Ingenic JZ4740 SoC"
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001049 depends on MACH_JZ4740
1050 help
1051 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1052 controller.
1053
1054 This driver can also be buillt as a module. If so, the module
1055 will be called rtc-jz4740.
1056
Kevin Wells9aa449b2010-10-27 15:33:01 -07001057config RTC_DRV_LPC32XX
1058 depends on ARCH_LPC32XX
1059 tristate "NXP LPC32XX RTC"
1060 help
1061 This enables support for the NXP RTC in the LPC32XX
1062
1063 This driver can also be buillt as a module. If so, the module
1064 will be called rtc-lpc32xx.
1065
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001066config RTC_DRV_PM8XXX
1067 tristate "Qualcomm PMIC8XXX RTC"
1068 depends on MFD_PM8XXX
1069 help
1070 If you say yes here you get support for the
1071 Qualcomm PMIC8XXX RTC.
1072
1073 To compile this driver as a module, choose M here: the
1074 module will be called rtc-pm8xxx.
1075
Andrew Chewff859ba2011-03-22 16:34:55 -07001076config RTC_DRV_TEGRA
1077 tristate "NVIDIA Tegra Internal RTC driver"
Venu Byravarasu6b8029f2012-10-04 17:13:59 -07001078 depends on ARCH_TEGRA
Andrew Chewff859ba2011-03-22 16:34:55 -07001079 help
1080 If you say yes here you get support for the
1081 Tegra 200 series internal RTC module.
1082
1083 This drive can also be built as a module. If so, the module
1084 will be called rtc-tegra.
1085
Chris Metcalfdd196a22011-05-09 13:28:43 -04001086config RTC_DRV_TILE
1087 tristate "Tilera hypervisor RTC support"
1088 depends on TILE
1089 help
1090 Enable support for the Linux driver side of the Tilera
1091 hypervisor's real-time clock interface.
1092
Guan Xuetao2809e802011-05-26 16:43:27 +08001093config RTC_DRV_PUV3
1094 tristate "PKUnity v3 RTC support"
1095 depends on ARCH_PUV3
1096 help
1097 This enables support for the RTC in the PKUnity-v3 SoCs.
1098
1099 This drive can also be built as a module. If so, the module
1100 will be called rtc-puv3.
1101
zhao zhangb4f0b882012-03-23 15:02:32 -07001102config RTC_DRV_LOONGSON1
1103 tristate "loongson1 RTC support"
1104 depends on MACH_LOONGSON1
1105 help
1106 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1107 counter) to be used as a RTC.
1108
1109 This driver can also be built as a module. If so, the module
1110 will be called rtc-ls1x.
1111
Fabio Estevam79811592012-05-29 15:07:37 -07001112config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001113 tristate "Freescale MXC Real Time Clock"
1114 depends on ARCH_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001115 help
1116 If you say yes here you get support for the Freescale MXC
1117 RTC module.
1118
1119 This driver can also be built as a module, if so, the module
1120 will be called "rtc-mxc".
1121
Shawn Guo179a5022012-10-04 17:13:49 -07001122config RTC_DRV_SNVS
1123 tristate "Freescale SNVS RTC support"
1124 depends on HAS_IOMEM
1125 depends on OF
1126 help
1127 If you say yes here you get support for the Freescale SNVS
1128 Low Power (LP) RTC module.
1129
1130 This driver can also be built as a module, if so, the module
1131 will be called "rtc-snvs".
1132
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001133endif # RTC_CLASS