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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 depends on RTC_CLASS = y
23 default y
24 help
David Brownell7ca1d482007-05-08 00:33:42 -070025 If you say yes here, the system time (wall clock) will be set using
26 the value read from a specified RTC device. This is useful to avoid
27 unnecessary fsck runs at boot time, and to network better.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080028
29config RTC_HCTOSYS_DEVICE
David Brownell7ca1d482007-05-08 00:33:42 -070030 string "RTC used to set the system time"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080031 depends on RTC_HCTOSYS = y
32 default "rtc0"
33 help
David Brownell7ca1d482007-05-08 00:33:42 -070034 The RTC device that will be used to (re)initialize the system
Alessandro Zummoae64d162009-01-06 14:42:17 -080035 clock, usually rtc0. Initialization is done when the system
36 starts up, and when it resumes from a low power state. This
David Brownell779d2082007-11-14 16:58:29 -080037 device should record time in UTC, since the kernel won't do
38 timezone correction.
David Brownell7ca1d482007-05-08 00:33:42 -070039
David Brownell55ff1ab2007-07-21 04:37:56 -070040 The driver for this RTC device must be loaded before late_initcall
41 functions run, so it must usually be statically linked.
42
David Brownell7ca1d482007-05-08 00:33:42 -070043 This clock should be battery-backed, so that it reads the correct
Alessandro Zummoae64d162009-01-06 14:42:17 -080044 time when the system boots from a power-off state. Otherwise, your
David Brownell7ca1d482007-05-08 00:33:42 -070045 system will need an external clock source (like an NTP server).
46
47 If the clock you specify here is not battery backed, it may still
48 be useful to reinitialize system time when resuming from system
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -080049 sleep states. Do not specify an RTC here unless it stays powered
David Brownell7ca1d482007-05-08 00:33:42 -070050 during all this system's supported sleep states.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080051
David Brownell9e86ecb2006-09-30 23:28:14 -070052config RTC_DEBUG
53 bool "RTC debug support"
54 depends on RTC_CLASS = y
55 help
56 Say yes here to enable debugging support in the RTC framework
57 and individual RTC drivers.
58
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080059comment "RTC interfaces"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080060
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080061config RTC_INTF_SYSFS
David Brownelle40659c2007-05-16 22:11:15 -070062 boolean "/sys/class/rtc/rtcN (sysfs)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070063 depends on SYSFS
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080064 default RTC_CLASS
65 help
David Brownell9e86ecb2006-09-30 23:28:14 -070066 Say yes here if you want to use your RTCs using sysfs interfaces,
67 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080068
Alessandro Zummoae64d162009-01-06 14:42:17 -080069 If unsure, say Y.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080070
Alessandro Zummo728a2942006-03-27 01:16:40 -080071config RTC_INTF_PROC
Kim, Milo92589c92012-10-04 17:13:45 -070072 boolean "/proc/driver/rtc (procfs for rtcN)"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070073 depends on PROC_FS
Alessandro Zummo728a2942006-03-27 01:16:40 -080074 default RTC_CLASS
75 help
Kim, Milo92589c92012-10-04 17:13:45 -070076 Say yes here if you want to use your system clock RTC through
77 the proc interface, /proc/driver/rtc.
78 Other RTCs will not be available through that API.
79 If there is no RTC for the system clock, then the first RTC(rtc0)
80 is used by default.
Alessandro Zummo728a2942006-03-27 01:16:40 -080081
Alessandro Zummoae64d162009-01-06 14:42:17 -080082 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -080083
Alessandro Zummoe8242902006-03-27 01:16:41 -080084config RTC_INTF_DEV
David Brownelle40659c2007-05-16 22:11:15 -070085 boolean "/dev/rtcN (character devices)"
Alessandro Zummoe8242902006-03-27 01:16:41 -080086 default RTC_CLASS
87 help
David Brownell9e86ecb2006-09-30 23:28:14 -070088 Say yes here if you want to use your RTCs using the /dev
89 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -080090 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -080091
Alessandro Zummoae64d162009-01-06 14:42:17 -080092 You may want to set up a symbolic link so one of these
93 can be accessed as /dev/rtc, which is a name
94 expected by "hwclock" and some other programs. Recent
95 versions of "udev" are known to set up the symlink for you.
96
97 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -080098
John Stultz6e57b1d2011-02-11 17:45:40 -080099config RTC_INTF_DEV_UIE_EMUL
100 bool "RTC UIE emulation on dev interface"
101 depends on RTC_INTF_DEV
102 help
103 Provides an emulation for RTC_UIE if the underlying rtc chip
104 driver does not expose RTC_UIE ioctls. Those requests generate
105 once-per-second update interrupts, used for synchronization.
106
107 The emulation code will read the time from the hardware
108 clock several times per second, please enable this option
109 only if you know that you really need it.
110
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700111config RTC_DRV_TEST
112 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700113 help
114 If you say yes here you get support for the
115 RTC test driver. It's a software RTC which can be
116 used to test the RTC subsystem APIs. It gets
117 the time from the system clock.
118 You want this driver only if you are doing development
119 on the RTC subsystem. Please read the source code
120 for further details.
121
122 This driver can also be built as a module. If so, the module
123 will be called rtc-test.
124
125comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700126 depends on I2C
127
128if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700129
Haojian Zhuang008b3042011-05-06 17:21:20 +0800130config RTC_DRV_88PM860X
131 tristate "Marvell 88PM860x"
132 depends on RTC_CLASS && I2C && MFD_88PM860X
133 help
134 If you say yes here you get support for RTC function in Marvell
135 88PM860x chips.
136
137 This driver can also be built as a module. If so, the module
138 will be called rtc-88pm860x.
139
Qiao Zhou2985c292012-07-09 14:37:34 +0800140config RTC_DRV_88PM80X
141 tristate "Marvell 88PM80x"
142 depends on RTC_CLASS && I2C && MFD_88PM800
143 help
144 If you say yes here you get support for RTC function in Marvell
145 88PM80x chips.
146
147 This driver can also be built as a module. If so, the module
148 will be called rtc-88pm80x.
149
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700150config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700151 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700152 help
153 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800154 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700155 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700156 EPSON RX-8025 and probably other chips. In some cases the RTC
157 must already have been initialized (by manufacturing or a
158 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700159
160 The first seven registers on these chips hold an RTC, and other
161 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800162 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800163 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700164
165 This driver can also be built as a module. If so, the module
166 will be called rtc-ds1307.
167
Scott Woodbf4994d2007-10-16 01:28:19 -0700168config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800169 tristate "Dallas/Maxim DS1374"
Scott Woodbf4994d2007-10-16 01:28:19 -0700170 depends on RTC_CLASS && I2C
171 help
172 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800173 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700174 with the device, the alarm functionality is supported.
175
Alessandro Zummoae64d162009-01-06 14:42:17 -0800176 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700177 will be called rtc-ds1374.
178
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700179config RTC_DRV_DS1672
180 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700181 help
182 If you say yes here you get support for the
183 Dallas/Maxim DS1672 timekeeping chip.
184
185 This driver can also be built as a module. If so, the module
186 will be called rtc-ds1672.
187
Roy Zangc03675f2010-08-10 18:02:20 -0700188config RTC_DRV_DS3232
189 tristate "Dallas/Maxim DS3232"
190 depends on RTC_CLASS && I2C
191 help
192 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700193 DS3232 real-time clock chips. If an interrupt is associated
194 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700195
196 This driver can also be built as a module. If so, the module
197 will be called rtc-ds3232.
198
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700199config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800200 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700201 help
202 If you say yes here you will get support for the
203 Maxim MAX6900 I2C RTC chip.
204
205 This driver can also be built as a module. If so, the module
206 will be called rtc-max6900.
207
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500208config RTC_DRV_MAX8925
209 tristate "Maxim MAX8925"
210 depends on MFD_MAX8925
211 help
212 If you say yes here you will get support for the
213 RTC of Maxim MAX8925 PMIC.
214
215 This driver can also be built as a module. If so, the module
216 will be called rtc-max8925.
217
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900218config RTC_DRV_MAX8998
219 tristate "Maxim MAX8998"
220 depends on MFD_MAX8998
221 help
222 If you say yes here you will get support for the
223 RTC of Maxim MAX8998 PMIC.
224
225 This driver can also be built as a module. If so, the module
226 will be called rtc-max8998.
227
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700228config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900229 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700230 help
231 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900232 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700233
234 This driver can also be built as a module. If so, the module
235 will be called rtc-rs5c372.
236
237config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800238 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700239 help
240 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800241 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700242
243 This driver can also be built as a module. If so, the module
244 will be called rtc-isl1208.
245
Roman Fietzed6c74282010-08-10 18:02:14 -0700246config RTC_DRV_ISL12022
247 tristate "Intersil ISL12022"
248 help
249 If you say yes here you get support for the
250 Intersil ISL12022 RTC chip.
251
252 This driver can also be built as a module. If so, the module
253 will be called rtc-isl12022.
254
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700255config RTC_DRV_X1205
256 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700257 help
258 If you say yes here you get support for the
259 Xicor/Intersil X1205 RTC chip.
260
261 This driver can also be built as a module. If so, the module
262 will be called rtc-x1205.
263
264config RTC_DRV_PCF8563
265 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700266 help
267 If you say yes here you get support for the
268 Philips PCF8563 RTC chip. The Epson RTC8564
269 should work as well.
270
271 This driver can also be built as a module. If so, the module
272 will be called rtc-pcf8563.
273
274config RTC_DRV_PCF8583
275 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700276 help
277 If you say yes here you get support for the Philips PCF8583
278 RTC chip found on Acorn RiscPCs. This driver supports the
279 platform specific method of retrieving the current year from
280 the RTC's SRAM. It will work on other platforms with the same
281 chip, but the year will probably have to be tweaked.
282
283 This driver can also be built as a module. If so, the module
284 will be called rtc-pcf8583.
285
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700286config RTC_DRV_M41T80
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700287 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700288 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700289 If you say Y here you will get support for the ST M41T60
290 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700291 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700292 M41ST85, and M41ST87.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700293
294 This driver can also be built as a module. If so, the module
295 will be called rtc-m41t80.
296
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700297config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700298 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700299 depends on RTC_DRV_M41T80
300 help
301 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700302 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700303
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800304config RTC_DRV_BQ32K
305 tristate "TI BQ32000"
306 help
307 If you say Y here you will get support for the TI
308 BQ32000 I2C RTC chip.
309
310 This driver can also be built as a module. If so, the module
311 will be called rtc-bq32k.
312
David Brownellafd8d0f2009-02-04 15:12:01 -0800313config RTC_DRV_DM355EVM
314 tristate "TI DaVinci DM355 EVM RTC"
315 depends on MFD_DM355EVM_MSP
316 help
317 Supports the RTC firmware in the MSP430 on the DM355 EVM.
318
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700319config RTC_DRV_TWL92330
320 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700321 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700322 help
323 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200324 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800325 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700326 the Menelaus driver; it's not separate module.
327
David Brownellf96411a2008-10-20 23:50:05 +0200328config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100329 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
David Brownellf96411a2008-10-20 23:50:05 +0200330 depends on RTC_CLASS && TWL4030_CORE
331 help
332 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100333 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200334
335 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100336 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200337
Venu Byravarasu0e783982012-10-04 17:13:55 -0700338config RTC_DRV_TPS65910
339 tristate "TI TPS65910 RTC driver"
340 depends on RTC_CLASS && MFD_TPS65910
341 help
342 If you say yes here you get support for the RTC on the
343 TPS65910 chips.
344
345 This driver can also be built as a module. If so, the module
346 will be called rtc-tps65910.
347
Byron Bradleyc46288b2008-03-04 14:28:25 -0800348config RTC_DRV_S35390A
349 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700350 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800351 help
352 If you say yes here you will get support for the Seiko
353 Instruments S-35390A.
354
355 This driver can also be built as a module. If so the module
356 will be called rtc-s35390a.
357
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700358config RTC_DRV_FM3130
359 tristate "Ramtron FM3130"
360 help
361 If you say Y here you will get support for the
362 Ramtron FM3130 RTC chips.
363 Ramtron FM3130 is a chip with two separate devices inside,
364 RTC clock and FRAM. This driver provides only RTC functionality.
365
366 This driver can also be built as a module. If so the module
367 will be called rtc-fm3130.
368
Martyn Welcha7fa9852008-11-12 13:27:06 -0800369config RTC_DRV_RX8581
370 tristate "Epson RX-8581"
371 help
372 If you say yes here you will get support for the Epson RX-8581.
373
374 This driver can also be built as a module. If so the module
375 will be called rtc-rx8581.
376
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700377config RTC_DRV_RX8025
378 tristate "Epson RX-8025SA/NB"
379 help
380 If you say yes here you get support for the Epson
381 RX-8025SA/NB RTC chips.
382
383 This driver can also be built as a module. If so, the module
384 will be called rtc-rx8025.
385
Mike Rapoportae3551f2011-05-26 16:25:04 -0700386config RTC_DRV_EM3027
387 tristate "EM Microelectronic EM3027"
388 help
389 If you say yes here you get support for the EM
390 Microelectronic EM3027 RTC chips.
391
392 This driver can also be built as a module. If so, the module
393 will be called rtc-em3027.
394
Heiko Schocher52365232011-05-26 16:25:05 -0700395config RTC_DRV_RV3029C2
396 tristate "Micro Crystal RTC"
397 help
398 If you say yes here you get support for the Micro Crystal
399 RV3029-C2 RTC chips.
400
401 This driver can also be built as a module. If so, the module
402 will be called rtc-rv3029c2.
403
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700404endif # I2C
405
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700406comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700407
408if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700409
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700410config RTC_DRV_M41T93
411 tristate "ST M41T93"
412 help
413 If you say yes here you will get support for the
414 ST M41T93 SPI RTC chip.
415
416 This driver can also be built as a module. If so, the module
417 will be called rtc-m41t93.
418
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700419config RTC_DRV_M41T94
420 tristate "ST M41T94"
421 help
422 If you say yes here you will get support for the
423 ST M41T94 SPI RTC chip.
424
425 This driver can also be built as a module. If so, the module
426 will be called rtc-m41t94.
427
David Brownell53e84b62008-07-23 21:30:36 -0700428config RTC_DRV_DS1305
429 tristate "Dallas/Maxim DS1305/DS1306"
430 help
431 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800432 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700433 charger, alarms, and NVRAM in addition to the clock.
434
435 This driver can also be built as a module. If so, the module
436 will be called rtc-ds1305.
437
Mark Jackson06de1802008-11-12 13:27:07 -0800438config RTC_DRV_DS1390
439 tristate "Dallas/Maxim DS1390/93/94"
440 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800441 If you say yes here you get support for the
442 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800443
444 This driver only supports the RTC feature, and not other chip
445 features such as alarms and trickle charging.
446
447 This driver can also be built as a module. If so, the module
448 will be called rtc-ds1390.
449
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800450config RTC_DRV_MAX6902
451 tristate "Maxim MAX6902"
452 help
453 If you say yes here you will get support for the
454 Maxim MAX6902 SPI RTC chip.
455
456 This driver can also be built as a module. If so, the module
457 will be called rtc-max6902.
458
Magnus Damm2805b962008-02-06 01:38:53 -0800459config RTC_DRV_R9701
460 tristate "Epson RTC-9701JE"
461 help
462 If you say yes here you will get support for the
463 Epson RTC-9701JE SPI RTC chip.
464
465 This driver can also be built as a module. If so, the module
466 will be called rtc-r9701.
467
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700468config RTC_DRV_RS5C348
469 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700470 help
471 If you say yes here you get support for the
472 Ricoh RS5C348A and RS5C348B RTC chips.
473
474 This driver can also be built as a module. If so, the module
475 will be called rtc-rs5c348.
476
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700477config RTC_DRV_DS3234
478 tristate "Maxim/Dallas DS3234"
479 help
480 If you say yes here you get support for the
481 Maxim/Dallas DS3234 SPI RTC chip.
482
483 This driver can also be built as a module. If so, the module
484 will be called rtc-ds3234.
485
Chris Verges7f3923a2009-09-22 16:46:20 -0700486config RTC_DRV_PCF2123
487 tristate "NXP PCF2123"
488 help
489 If you say yes here you get support for the NXP PCF2123
490 RTC chip.
491
492 This driver can also be built as a module. If so, the module
493 will be called rtc-pcf2123.
494
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700495endif # SPI_MASTER
496
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700497comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800498
David Brownell7be2c7c2007-02-10 01:46:02 -0800499# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
500# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
501# global rtc_lock ... it's not yet just another platform_device.
502
503config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700504 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700505 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700506 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800507 help
508 Say "yes" here to get direct support for the real time clock
509 found in every PC or ACPI-based system, and some other boards.
510 Specifically the original MC146818, compatibles like those in
511 PC south bridges, the DS12887 or M48T86, some multifunction
512 or LPC bus chips, and so on.
513
514 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800515 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800516 you can safely enable this driver if you don't know whether
517 or not your board has this kind of hardware.
518
519 This driver can also be built as a module. If so, the module
520 will be called rtc-cmos.
521
Feng Tang0146f262010-11-10 17:29:17 +0000522config RTC_DRV_VRTC
Alan Cox933b9462011-12-17 17:43:40 +0000523 tristate "Virtual RTC for Intel MID platforms"
524 depends on X86_INTEL_MID
525 default y if X86_INTEL_MID
Feng Tang0146f262010-11-10 17:29:17 +0000526
527 help
528 Say "yes" here to get direct support for the real time clock
529 found on Moorestown platforms. The VRTC is a emulated RTC that
530 derives its clock source from a real RTC in the PMIC. The MC146818
531 style programming interface is mostly conserved, but any
532 updates are done via IPC calls to the system controller FW.
533
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700534config RTC_DRV_DS1216
535 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700536 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700537 help
538 If you say yes here you get support for the Dallas DS1216 RTC chips.
539
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200540config RTC_DRV_DS1286
541 tristate "Dallas DS1286"
542 help
543 If you say yes here you get support for the Dallas DS1286 RTC chips.
544
Paul Mundt739d3402008-02-06 01:38:44 -0800545config RTC_DRV_DS1302
546 tristate "Dallas DS1302"
547 depends on SH_SECUREEDGE5410
548 help
549 If you say yes here you get support for the Dallas DS1302 RTC chips.
550
Andrew Sharp8f267952008-02-06 01:38:46 -0800551config RTC_DRV_DS1511
552 tristate "Dallas DS1511"
553 depends on RTC_CLASS
554 help
555 If you say yes here you get support for the
556 Dallas DS1511 timekeeping/watchdog chip.
557
558 This driver can also be built as a module. If so, the module
559 will be called rtc-ds1511.
560
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700561config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800562 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700563 help
564 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800565 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700566
567 This driver can also be built as a module. If so, the module
568 will be called rtc-ds1553.
569
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800570config RTC_DRV_DS1742
571 tristate "Maxim/Dallas DS1742/1743"
572 help
573 If you say yes here you get support for the
574 Maxim/Dallas DS1742/1743 timekeeping chip.
575
576 This driver can also be built as a module. If so, the module
577 will be called rtc-ds1742.
578
Ashish Jangamfef931f2012-03-23 15:02:36 -0700579config RTC_DRV_DA9052
580 tristate "Dialog DA9052/DA9053 RTC"
581 depends on PMIC_DA9052
582 help
583 Say y here to support the RTC driver for Dialog Semiconductor
584 DA9052-BC and DA9053-AA/Bx PMICs.
585
dann frazier5e3fd9e2009-03-31 15:24:48 -0700586config RTC_DRV_EFI
587 tristate "EFI RTC"
588 depends on IA64
589 help
590 If you say yes here you will get support for the EFI
591 Real Time Clock.
592
593 This driver can also be built as a module. If so, the module
594 will be called rtc-efi.
595
Thomas Hommel02964112007-07-21 04:37:58 -0700596config RTC_DRV_STK17TA8
597 tristate "Simtek STK17TA8"
598 depends on RTC_CLASS
599 help
600 If you say yes here you get support for the
601 Simtek STK17TA8 timekeeping chip.
602
603 This driver can also be built as a module. If so, the module
604 will be called rtc-stk17ta8.
605
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700606config RTC_DRV_M48T86
607 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700608 help
609 If you say Y here you will get support for the
610 ST M48T86 and Dallas DS12887 RTC chips.
611
612 This driver can also be built as a module. If so, the module
613 will be called rtc-m48t86.
614
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200615config RTC_DRV_M48T35
616 tristate "ST M48T35"
617 help
618 If you say Y here you will get support for the
619 ST M48T35 RTC chip.
620
621 This driver can also be built as a module, if so, the module
622 will be called "rtc-m48t35".
623
Mark Zhan2e774c72007-07-17 04:05:05 -0700624config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700625 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700626 help
627 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700628 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
629
630 These chips are usually found in Sun SPARC and UltraSPARC
631 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700632
633 This driver can also be built as a module, if so, the module
634 will be called "rtc-m48t59".
635
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100636config RTC_DRV_MSM6242
637 tristate "Oki MSM6242"
638 help
639 If you say yes here you get support for the Oki MSM6242
640 timekeeping chip. It is used in some Amiga models (e.g. A2000).
641
642 This driver can also be built as a module. If so, the module
643 will be called rtc-msm6242.
644
David S. Millercca4c232008-08-29 01:29:53 -0700645config RTC_DRV_BQ4802
646 tristate "TI BQ4802"
647 help
648 If you say Y here you will get support for the TI
649 BQ4802 RTC chip.
650
651 This driver can also be built as a module. If so, the module
652 will be called rtc-bq4802.
653
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100654config RTC_DRV_RP5C01
655 tristate "Ricoh RP5C01"
656 help
657 If you say yes here you get support for the Ricoh RP5C01
658 timekeeping chip. It is used in some Amiga models (e.g. A3000
659 and A4000).
660
661 This driver can also be built as a module. If so, the module
662 will be called rtc-rp5c01.
663
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700664config RTC_DRV_V3020
665 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700666 help
667 If you say yes here you will get support for the
668 EM Microelectronic v3020 RTC chip.
669
670 This driver can also be built as a module. If so, the module
671 will be called rtc-v3020.
672
Sven Schnelle7418a112012-10-04 17:13:47 -0700673config RTC_DRV_DS2404
674 tristate "Dallas DS2404"
675 help
676 If you say yes here you get support for the
677 Dallas DS2404 RTC chip.
678
679 This driver can also be built as a module. If so, the module
680 will be called rtc-ds2404.
681
Mark Brown35c86bf2009-08-27 19:59:05 +0200682config RTC_DRV_WM831X
683 tristate "Wolfson Microelectronics WM831x RTC"
684 depends on MFD_WM831X
685 help
686 If you say yes here you will get support for the RTC subsystem
687 of the Wolfson Microelectronics WM831X series PMICs.
688
689 This driver can also be built as a module. If so, the module
690 will be called "rtc-wm831x".
691
Mark Brown077eaf52008-11-12 13:27:04 -0800692config RTC_DRV_WM8350
693 tristate "Wolfson Microelectronics WM8350 RTC"
694 depends on MFD_WM8350
695 help
696 If you say yes here you will get support for the RTC subsystem
697 of the Wolfson Microelectronics WM8350.
698
699 This driver can also be built as a module. If so, the module
700 will be called "rtc-wm8350".
701
Rajeev Kumar0942a712011-05-26 16:25:09 -0700702config RTC_DRV_SPEAR
703 tristate "SPEAR ST RTC"
704 depends on PLAT_SPEAR
705 default y
706 help
707 If you say Y here you will get support for the RTC found on
708 spear
709
Balaji Raoeae854b2009-01-09 01:50:51 +0100710config RTC_DRV_PCF50633
711 depends on MFD_PCF50633
712 tristate "NXP PCF50633 RTC"
713 help
714 If you say yes here you get support for the RTC subsystem of the
715 NXP PCF50633 used in embedded systems.
716
Linus Walleijbd207cf2009-08-30 23:49:04 +0200717config RTC_DRV_AB3100
718 tristate "ST-Ericsson AB3100 RTC"
719 depends on AB3100_CORE
720 default y if AB3100_CORE
721 help
722 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
723 support. This chip contains a battery- and capacitor-backed RTC.
724
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700725config RTC_DRV_AB8500
726 tristate "ST-Ericsson AB8500 RTC"
727 depends on AB8500_CORE
Ramesh Chandrasekarandc43d4a2012-07-30 14:41:41 -0700728 select RTC_INTF_DEV_UIE_EMUL
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700729 help
730 Select this to enable the ST-Ericsson AB8500 power management IC RTC
731 support. This chip contains a battery- and capacitor-backed RTC.
732
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800733config RTC_DRV_NUC900
734 tristate "NUC910/NUC920 RTC driver"
735 depends on RTC_CLASS && ARCH_W90X900
736 help
737 If you say yes here you get support for the RTC subsystem of the
738 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200739
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700740comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700741
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600742config RTC_DRV_DAVINCI
743 tristate "TI DaVinci RTC"
744 depends on ARCH_DAVINCI_DM365
745 help
746 If you say yes here you get support for the RTC on the
747 DaVinci platforms (DM365).
748
749 This driver can also be built as a module. If so, the module
750 will be called rtc-davinci.
751
Fabio Estevamb224b9a2012-05-29 15:07:37 -0700752config RTC_DRV_IMXDI
753 tristate "Freescale IMX DryIce Real Time Clock"
754 depends on SOC_IMX25
755 depends on RTC_CLASS
756 help
757 Support for Freescale IMX DryIce RTC
758
759 This driver can also be built as a module, if so, the module
760 will be called "rtc-imxdi".
761
David Brownelldb68b182006-12-06 20:38:36 -0800762config RTC_DRV_OMAP
763 tristate "TI OMAP1"
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800764 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
David Brownelldb68b182006-12-06 20:38:36 -0800765 help
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800766 Say "yes" here to support the real time clock on TI OMAP1 and
767 DA8xx/OMAP-L13x chips. This driver can also be built as a
768 module called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800769
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530770config HAVE_S3C_RTC
771 bool
772 help
773 This will include RTC support for Samsung SoCs. If
774 you want to include RTC support for any machine, kindly
775 select this in the respective mach-XXXX/Kconfig file.
776
Ben Dooks1add6782006-07-01 04:36:26 -0700777config RTC_DRV_S3C
778 tristate "Samsung S3C series SoC RTC"
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900779 depends on ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700780 help
781 RTC (Realtime Clock) driver for the clock inbuilt into the
782 Samsung S3C24XX series of SoCs. This can provide periodic
783 interrupt rates from 1Hz to 64Hz for user programs, and
784 wakeup from Alarm.
785
786 The driver currently supports the common features on all the
787 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
788 and S3C2442.
789
790 This driver can also be build as a module. If so, the module
791 will be called rtc-s3c.
792
Alessandro Zummofd507e22006-03-27 01:16:45 -0800793config RTC_DRV_EP93XX
794 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700795 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800796 help
797 If you say yes here you get support for the
798 RTC embedded in the Cirrus Logic EP93XX processors.
799
800 This driver can also be built as a module. If so, the module
801 will be called rtc-ep93xx.
802
Richard Purdiee842f1c2006-03-27 01:16:46 -0800803config RTC_DRV_SA1100
Haojian Zhuang3888c092012-02-21 11:51:13 +0800804 tristate "SA11x0/PXA2xx/PXA910"
805 depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
Richard Purdiee842f1c2006-03-27 01:16:46 -0800806 help
807 If you say Y here you will get access to the real time clock
808 built into your SA11x0 or PXA2xx CPU.
809
810 To compile this driver as a module, choose M here: the
811 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800812
Paul Mundt317a6102006-09-27 17:13:19 +0900813config RTC_DRV_SH
814 tristate "SuperH On-Chip RTC"
Paul Mundt063adc72009-04-16 14:12:22 +0900815 depends on RTC_CLASS && SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900816 help
817 Say Y here to enable support for the on-chip RTC found in
818 most SuperH processors.
819
820 To compile this driver as a module, choose M here: the
821 module will be called rtc-sh.
822
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700823config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700824 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700825 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700826 help
827 If you say Y here you will get access to the real time clock
828 built into your NEC VR41XX CPU.
829
830 To compile this driver as a module, choose M here: the
831 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700832
Russell Kinga1909012008-04-20 12:08:36 +0100833config RTC_DRV_PL030
834 tristate "ARM AMBA PL030 RTC"
835 depends on ARM_AMBA
836 help
837 If you say Y here you will get access to ARM AMBA
838 PrimeCell PL030 RTC found on certain ARM SOCs.
839
840 To compile this driver as a module, choose M here: the
841 module will be called rtc-pl030.
842
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700843config RTC_DRV_PL031
844 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700845 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700846 help
847 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700848 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700849
850 To compile this driver as a module, choose M here: the
851 module will be called rtc-pl031.
852
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700853config RTC_DRV_AT32AP700X
854 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700855 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700856 help
857 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
858 AT32AP700x family processors.
859
Andrew Victor7fc39f62006-12-10 02:19:03 -0800860config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200861 tristate "AT91RM9200 or some AT91SAM9 RTC"
Nicolas Ferre938f9702012-03-15 14:38:09 +0100862 depends on ARCH_AT91
Andrew Victor788b1fc2006-06-25 05:48:27 -0700863 help
David Brownell4cdf8542008-02-06 01:38:59 -0800864 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200865 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800866 this is powered by the backup power supply.
867
868config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200869 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800870 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
871 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100872 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
873 (Real Time Timer). These timers are powered by the backup power
874 supply (such as a small coin cell battery), but do not need to
875 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800876
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200877 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
878 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800879
880config RTC_DRV_AT91SAM9_RTT
881 int
882 range 0 1
883 default 0
884 prompt "RTT module Number" if ARCH_AT91SAM9263
885 depends on RTC_DRV_AT91SAM9
886 help
Alessandro Zummoae64d162009-01-06 14:42:17 -0800887 More than one RTT module is available. You can choose which
888 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -0800889 OK to use, though some systems use that for non-RTC purposes.
890
891config RTC_DRV_AT91SAM9_GPBR
892 int
893 range 0 3 if !ARCH_AT91SAM9263
894 range 0 15 if ARCH_AT91SAM9263
895 default 0
896 prompt "Backup Register Number"
897 depends on RTC_DRV_AT91SAM9
898 help
899 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -0800900 Registers (GPBRs) as well as the RTT. You can choose which one
901 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -0800902 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -0700903
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800904config RTC_DRV_AU1XXX
905 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +0200906 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800907 help
908 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
909 counter) to be used as a RTC.
910
911 This driver can also be built as a module. If so, the module
912 will be called rtc-au1xxx.
913
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700914config RTC_DRV_BFIN
915 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -0700916 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700917 help
918 If you say yes here you will get support for the
919 Blackfin On-Chip Real Time Clock.
920
921 This driver can also be built as a module. If so, the module
922 will be called rtc-bfin.
923
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700924config RTC_DRV_RS5C313
925 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700926 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700927 help
928 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
929
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100930config RTC_DRV_GENERIC
931 tristate "Generic RTC support"
932 # Please consider writing a new RTC driver instead of using the generic
933 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +0900934 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +0000935 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100936 Say Y or M here to enable RTC support on systems using the generic
937 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +0000938 just say Y.
939
Robert Jarzmikdc944362009-01-06 14:42:14 -0800940config RTC_DRV_PXA
941 tristate "PXA27x/PXA3xx"
942 depends on ARCH_PXA
943 help
944 If you say Y here you will get access to the real time clock
945 built into your PXA27x or PXA3xx CPU.
946
947 This RTC driver uses PXA RTC registers available since pxa27x
948 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
949
Alexey Charkovf77fbdf2011-05-26 16:25:03 -0700950config RTC_DRV_VT8500
951 tristate "VIA/WonderMedia 85xx SoC RTC"
952 depends on ARCH_VT8500
953 help
954 If you say Y here you will get access to the real time clock
955 built into your VIA VT8500 SoC or its relatives.
956
Robert Jarzmikdc944362009-01-06 14:42:14 -0800957
David S. Miller7a138ed2008-08-29 01:32:43 -0700958config RTC_DRV_SUN4V
959 bool "SUN4V Hypervisor RTC"
960 depends on SPARC64
961 help
962 If you say Y here you will get support for the Hypervisor
963 based RTC on SUN4V systems.
964
David S. Millerde2cf332008-08-28 23:02:36 -0700965config RTC_DRV_STARFIRE
966 bool "Starfire RTC"
967 depends on SPARC64
968 help
969 If you say Y here you will get support for the RTC found on
970 Starfire systems.
971
Atsushi Nemoto0e149232009-01-06 14:42:22 -0800972config RTC_DRV_TX4939
973 tristate "TX4939 SoC"
974 depends on SOC_TX4939
975 help
976 Driver for the internal RTC (Realtime Clock) module found on
977 Toshiba TX4939 SoC.
978
Saeed Bisharadefb4512009-01-06 14:42:24 -0800979config RTC_DRV_MV
980 tristate "Marvell SoC RTC"
Saeed Bisharada432432009-11-24 19:33:53 +0200981 depends on ARCH_KIRKWOOD || ARCH_DOVE
Saeed Bisharadefb4512009-01-06 14:42:24 -0800982 help
983 If you say yes here you will get support for the in-chip RTC
984 that can be found in some of Marvell's SoC devices, such as
985 the Kirkwood 88F6281 and 88F6192.
986
987 This driver can also be built as a module. If so, the module
988 will be called rtc-mv.
989
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +0100990config RTC_DRV_PS3
991 tristate "PS3 RTC"
992 depends on PPC_PS3
993 help
994 If you say yes here you will get support for the RTC on PS3.
995
996 This driver can also be built as a module. If so, the module
997 will be called rtc-ps3.
998
Linus Walleijaa958f52009-09-22 16:46:24 -0700999config RTC_DRV_COH901331
1000 tristate "ST-Ericsson COH 901 331 RTC"
1001 depends on ARCH_U300
1002 help
1003 If you say Y here you will get access to ST-Ericsson
1004 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1005 Platforms.
1006
1007 This driver can also be built as a module. If so, the module
1008 will be called "rtc-coh901331".
1009
1010
dmitry pervushindf17f632009-09-22 16:46:26 -07001011config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +02001012 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
1013 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -07001014 help
1015 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +02001016 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -07001017
1018 This driver can also be built as a module. If so, the module
1019 will be called rtc-stmp3xxx.
1020
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001021config RTC_DRV_PCAP
1022 tristate "PCAP RTC"
1023 depends on EZX_PCAP
1024 help
1025 If you say Y here you will get support for the RTC found on
1026 the PCAP2 ASIC used on some Motorola phones.
1027
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001028config RTC_DRV_MC13XXX
1029 depends on MFD_MC13XXX
1030 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001031 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001032 This enables support for the RTCs found on Freescale's PMICs
1033 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001034
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001035config RTC_DRV_MPC5121
1036 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001037 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001038 help
1039 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001040 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001041
1042 This driver can also be built as a module. If so, the module
1043 will be called rtc-mpc5121.
1044
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001045config RTC_DRV_JZ4740
1046 tristate "Ingenic JZ4740 SoC"
1047 depends on RTC_CLASS
1048 depends on MACH_JZ4740
1049 help
1050 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1051 controller.
1052
1053 This driver can also be buillt as a module. If so, the module
1054 will be called rtc-jz4740.
1055
Kevin Wells9aa449b2010-10-27 15:33:01 -07001056config RTC_DRV_LPC32XX
1057 depends on ARCH_LPC32XX
1058 tristate "NXP LPC32XX RTC"
1059 help
1060 This enables support for the NXP RTC in the LPC32XX
1061
1062 This driver can also be buillt as a module. If so, the module
1063 will be called rtc-lpc32xx.
1064
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001065config RTC_DRV_PM8XXX
1066 tristate "Qualcomm PMIC8XXX RTC"
1067 depends on MFD_PM8XXX
1068 help
1069 If you say yes here you get support for the
1070 Qualcomm PMIC8XXX RTC.
1071
1072 To compile this driver as a module, choose M here: the
1073 module will be called rtc-pm8xxx.
1074
Andrew Chewff859ba2011-03-22 16:34:55 -07001075config RTC_DRV_TEGRA
1076 tristate "NVIDIA Tegra Internal RTC driver"
1077 depends on RTC_CLASS && ARCH_TEGRA
1078 help
1079 If you say yes here you get support for the
1080 Tegra 200 series internal RTC module.
1081
1082 This drive can also be built as a module. If so, the module
1083 will be called rtc-tegra.
1084
Chris Metcalfdd196a22011-05-09 13:28:43 -04001085config RTC_DRV_TILE
1086 tristate "Tilera hypervisor RTC support"
1087 depends on TILE
1088 help
1089 Enable support for the Linux driver side of the Tilera
1090 hypervisor's real-time clock interface.
1091
Guan Xuetao2809e802011-05-26 16:43:27 +08001092config RTC_DRV_PUV3
1093 tristate "PKUnity v3 RTC support"
1094 depends on ARCH_PUV3
1095 help
1096 This enables support for the RTC in the PKUnity-v3 SoCs.
1097
1098 This drive can also be built as a module. If so, the module
1099 will be called rtc-puv3.
1100
zhao zhangb4f0b882012-03-23 15:02:32 -07001101config RTC_DRV_LOONGSON1
1102 tristate "loongson1 RTC support"
1103 depends on MACH_LOONGSON1
1104 help
1105 This is a driver for the loongson1 on-chip Counter0 (Time-Of-Year
1106 counter) to be used as a RTC.
1107
1108 This driver can also be built as a module. If so, the module
1109 will be called rtc-ls1x.
1110
Fabio Estevam79811592012-05-29 15:07:37 -07001111config RTC_DRV_MXC
Fabio Estevamb224b9a2012-05-29 15:07:37 -07001112 tristate "Freescale MXC Real Time Clock"
1113 depends on ARCH_MXC
1114 depends on RTC_CLASS
1115 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