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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
Jan Engelhardtbb35fb22007-07-31 00:39:46 -070011 depends on !S390
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
David Brownelle40659c2007-05-16 22:11:15 -070072 boolean "/proc/driver/rtc (procfs for rtc0)"
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
David Brownell9e86ecb2006-09-30 23:28:14 -070076 Say yes here if you want to use your first RTC through the proc
Alessandro Zummoae64d162009-01-06 14:42:17 -080077 interface, /proc/driver/rtc. Other RTCs will not be available
David Brownell9e86ecb2006-09-30 23:28:14 -070078 through that API.
Alessandro Zummo728a2942006-03-27 01:16:40 -080079
Alessandro Zummoae64d162009-01-06 14:42:17 -080080 If unsure, say Y.
Alessandro Zummo728a2942006-03-27 01:16:40 -080081
Alessandro Zummoe8242902006-03-27 01:16:41 -080082config RTC_INTF_DEV
David Brownelle40659c2007-05-16 22:11:15 -070083 boolean "/dev/rtcN (character devices)"
Alessandro Zummoe8242902006-03-27 01:16:41 -080084 default RTC_CLASS
85 help
David Brownell9e86ecb2006-09-30 23:28:14 -070086 Say yes here if you want to use your RTCs using the /dev
87 interfaces, which "udev" sets up as /dev/rtc0 through
Alessandro Zummoae64d162009-01-06 14:42:17 -080088 /dev/rtcN.
Alessandro Zummoe8242902006-03-27 01:16:41 -080089
Alessandro Zummoae64d162009-01-06 14:42:17 -080090 You may want to set up a symbolic link so one of these
91 can be accessed as /dev/rtc, which is a name
92 expected by "hwclock" and some other programs. Recent
93 versions of "udev" are known to set up the symlink for you.
94
95 If unsure, say Y.
Alessandro Zummoe8242902006-03-27 01:16:41 -080096
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -070097config RTC_INTF_ALARM
98 bool "Android alarm driver"
99 depends on RTC_CLASS
100 default y
101 help
102 Provides non-wakeup and rtc backed wakeup alarms based on rtc or
103 elapsed realtime, and a non-wakeup alarm on the monotonic clock.
104 Also provides an interface to set the wall time which must be used
105 for elapsed realtime to work.
106
107config RTC_INTF_ALARM_DEV
108 bool "Android alarm device"
109 depends on RTC_INTF_ALARM
110 default y
111 help
112 Exports the alarm interface to user-space.
113
John Stultz6e57b1d2011-02-11 17:45:40 -0800114config RTC_INTF_DEV_UIE_EMUL
115 bool "RTC UIE emulation on dev interface"
116 depends on RTC_INTF_DEV
117 help
118 Provides an emulation for RTC_UIE if the underlying rtc chip
119 driver does not expose RTC_UIE ioctls. Those requests generate
120 once-per-second update interrupts, used for synchronization.
121
122 The emulation code will read the time from the hardware
123 clock several times per second, please enable this option
124 only if you know that you really need it.
125
Arve Hjønnevågb54b33d2008-10-14 17:38:04 -0700126config RTC_INTF_ALARM
127 bool "Android alarm driver"
128 depends on RTC_CLASS
129 default y
130 help
131 Provides non-wakeup and rtc backed wakeup alarms based on rtc or
132 elapsed realtime, and a non-wakeup alarm on the monotonic clock.
Arve Hjønnevågfa565402009-05-04 14:09:15 -0700133 Also provides an interface to set the wall time which must be used
Arve Hjønnevågb54b33d2008-10-14 17:38:04 -0700134 for elapsed realtime to work.
135
Arve Hjønnevågfa565402009-05-04 14:09:15 -0700136config RTC_INTF_ALARM_DEV
137 bool "Android alarm device"
138 depends on RTC_INTF_ALARM
139 default y
140 help
141 Exports the alarm interface to user-space.
142
143
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700144config RTC_DRV_TEST
145 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700146 help
147 If you say yes here you get support for the
148 RTC test driver. It's a software RTC which can be
149 used to test the RTC subsystem APIs. It gets
150 the time from the system clock.
151 You want this driver only if you are doing development
152 on the RTC subsystem. Please read the source code
153 for further details.
154
155 This driver can also be built as a module. If so, the module
156 will be called rtc-test.
157
158comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700159 depends on I2C
160
161if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700162
Haojian Zhuang008b3042011-05-06 17:21:20 +0800163config RTC_DRV_88PM860X
164 tristate "Marvell 88PM860x"
165 depends on RTC_CLASS && I2C && MFD_88PM860X
166 help
167 If you say yes here you get support for RTC function in Marvell
168 88PM860x chips.
169
170 This driver can also be built as a module. If so, the module
171 will be called rtc-88pm860x.
172
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700173config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700174 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700175 help
176 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800177 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700178 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700179 EPSON RX-8025 and probably other chips. In some cases the RTC
180 must already have been initialized (by manufacturing or a
181 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700182
183 The first seven registers on these chips hold an RTC, and other
184 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800185 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800186 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700187
188 This driver can also be built as a module. If so, the module
189 will be called rtc-ds1307.
190
Scott Woodbf4994d2007-10-16 01:28:19 -0700191config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800192 tristate "Dallas/Maxim DS1374"
Scott Woodbf4994d2007-10-16 01:28:19 -0700193 depends on RTC_CLASS && I2C
194 help
195 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800196 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700197 with the device, the alarm functionality is supported.
198
Alessandro Zummoae64d162009-01-06 14:42:17 -0800199 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700200 will be called rtc-ds1374.
201
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700202config RTC_DRV_DS1672
203 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700204 help
205 If you say yes here you get support for the
206 Dallas/Maxim DS1672 timekeeping chip.
207
208 This driver can also be built as a module. If so, the module
209 will be called rtc-ds1672.
210
Roy Zangc03675f2010-08-10 18:02:20 -0700211config RTC_DRV_DS3232
212 tristate "Dallas/Maxim DS3232"
213 depends on RTC_CLASS && I2C
214 help
215 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700216 DS3232 real-time clock chips. If an interrupt is associated
217 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700218
219 This driver can also be built as a module. If so, the module
220 will be called rtc-ds3232.
221
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700222config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800223 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700224 help
225 If you say yes here you will get support for the
226 Maxim MAX6900 I2C RTC chip.
227
228 This driver can also be built as a module. If so, the module
229 will be called rtc-max6900.
230
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500231config RTC_DRV_MAX8925
232 tristate "Maxim MAX8925"
233 depends on MFD_MAX8925
234 help
235 If you say yes here you will get support for the
236 RTC of Maxim MAX8925 PMIC.
237
238 This driver can also be built as a module. If so, the module
239 will be called rtc-max8925.
240
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900241config RTC_DRV_MAX8998
242 tristate "Maxim MAX8998"
243 depends on MFD_MAX8998
244 help
245 If you say yes here you will get support for the
246 RTC of Maxim MAX8998 PMIC.
247
248 This driver can also be built as a module. If so, the module
249 will be called rtc-max8998.
250
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700251config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900252 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700253 help
254 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900255 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700256
257 This driver can also be built as a module. If so, the module
258 will be called rtc-rs5c372.
259
260config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800261 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700262 help
263 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800264 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700265
266 This driver can also be built as a module. If so, the module
267 will be called rtc-isl1208.
268
Roman Fietzed6c74282010-08-10 18:02:14 -0700269config RTC_DRV_ISL12022
270 tristate "Intersil ISL12022"
271 help
272 If you say yes here you get support for the
273 Intersil ISL12022 RTC chip.
274
275 This driver can also be built as a module. If so, the module
276 will be called rtc-isl12022.
277
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700278config RTC_DRV_X1205
279 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700280 help
281 If you say yes here you get support for the
282 Xicor/Intersil X1205 RTC chip.
283
284 This driver can also be built as a module. If so, the module
285 will be called rtc-x1205.
286
287config RTC_DRV_PCF8563
288 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700289 help
290 If you say yes here you get support for the
291 Philips PCF8563 RTC chip. The Epson RTC8564
292 should work as well.
293
294 This driver can also be built as a module. If so, the module
295 will be called rtc-pcf8563.
296
297config RTC_DRV_PCF8583
298 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700299 help
300 If you say yes here you get support for the Philips PCF8583
301 RTC chip found on Acorn RiscPCs. This driver supports the
302 platform specific method of retrieving the current year from
303 the RTC's SRAM. It will work on other platforms with the same
304 chip, but the year will probably have to be tweaked.
305
306 This driver can also be built as a module. If so, the module
307 will be called rtc-pcf8583.
308
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700309config RTC_DRV_M41T80
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700310 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700311 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700312 If you say Y here you will get support for the ST M41T60
313 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700314 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700315 M41ST85, and M41ST87.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700316
317 This driver can also be built as a module. If so, the module
318 will be called rtc-m41t80.
319
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700320config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700321 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700322 depends on RTC_DRV_M41T80
323 help
324 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700325 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700326
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800327config RTC_DRV_BQ32K
328 tristate "TI BQ32000"
329 help
330 If you say Y here you will get support for the TI
331 BQ32000 I2C RTC chip.
332
333 This driver can also be built as a module. If so, the module
334 will be called rtc-bq32k.
335
David Brownellafd8d0f2009-02-04 15:12:01 -0800336config RTC_DRV_DM355EVM
337 tristate "TI DaVinci DM355 EVM RTC"
338 depends on MFD_DM355EVM_MSP
339 help
340 Supports the RTC firmware in the MSP430 on the DM355 EVM.
341
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700342config RTC_DRV_TWL92330
343 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700344 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700345 help
346 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200347 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800348 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700349 the Menelaus driver; it's not separate module.
350
David Brownellf96411a2008-10-20 23:50:05 +0200351config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100352 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
David Brownellf96411a2008-10-20 23:50:05 +0200353 depends on RTC_CLASS && TWL4030_CORE
354 help
355 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100356 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200357
358 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100359 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200360
Byron Bradleyc46288b2008-03-04 14:28:25 -0800361config RTC_DRV_S35390A
362 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700363 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800364 help
365 If you say yes here you will get support for the Seiko
366 Instruments S-35390A.
367
368 This driver can also be built as a module. If so the module
369 will be called rtc-s35390a.
370
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700371config RTC_DRV_FM3130
372 tristate "Ramtron FM3130"
373 help
374 If you say Y here you will get support for the
375 Ramtron FM3130 RTC chips.
376 Ramtron FM3130 is a chip with two separate devices inside,
377 RTC clock and FRAM. This driver provides only RTC functionality.
378
379 This driver can also be built as a module. If so the module
380 will be called rtc-fm3130.
381
Martyn Welcha7fa9852008-11-12 13:27:06 -0800382config RTC_DRV_RX8581
383 tristate "Epson RX-8581"
384 help
385 If you say yes here you will get support for the Epson RX-8581.
386
387 This driver can also be built as a module. If so the module
388 will be called rtc-rx8581.
389
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700390config RTC_DRV_RX8025
391 tristate "Epson RX-8025SA/NB"
392 help
393 If you say yes here you get support for the Epson
394 RX-8025SA/NB RTC chips.
395
396 This driver can also be built as a module. If so, the module
397 will be called rtc-rx8025.
398
Mike Rapoportae3551f2011-05-26 16:25:04 -0700399config RTC_DRV_EM3027
400 tristate "EM Microelectronic EM3027"
401 help
402 If you say yes here you get support for the EM
403 Microelectronic EM3027 RTC chips.
404
405 This driver can also be built as a module. If so, the module
406 will be called rtc-em3027.
407
Heiko Schocher52365232011-05-26 16:25:05 -0700408config RTC_DRV_RV3029C2
409 tristate "Micro Crystal RTC"
410 help
411 If you say yes here you get support for the Micro Crystal
412 RV3029-C2 RTC chips.
413
414 This driver can also be built as a module. If so, the module
415 will be called rtc-rv3029c2.
416
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700417endif # I2C
418
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700419comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700420
421if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700422
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700423config RTC_DRV_M41T93
424 tristate "ST M41T93"
425 help
426 If you say yes here you will get support for the
427 ST M41T93 SPI RTC chip.
428
429 This driver can also be built as a module. If so, the module
430 will be called rtc-m41t93.
431
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700432config RTC_DRV_M41T94
433 tristate "ST M41T94"
434 help
435 If you say yes here you will get support for the
436 ST M41T94 SPI RTC chip.
437
438 This driver can also be built as a module. If so, the module
439 will be called rtc-m41t94.
440
David Brownell53e84b62008-07-23 21:30:36 -0700441config RTC_DRV_DS1305
442 tristate "Dallas/Maxim DS1305/DS1306"
443 help
444 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800445 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700446 charger, alarms, and NVRAM in addition to the clock.
447
448 This driver can also be built as a module. If so, the module
449 will be called rtc-ds1305.
450
Mark Jackson06de1802008-11-12 13:27:07 -0800451config RTC_DRV_DS1390
452 tristate "Dallas/Maxim DS1390/93/94"
453 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800454 If you say yes here you get support for the
455 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800456
457 This driver only supports the RTC feature, and not other chip
458 features such as alarms and trickle charging.
459
460 This driver can also be built as a module. If so, the module
461 will be called rtc-ds1390.
462
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800463config RTC_DRV_MAX6902
464 tristate "Maxim MAX6902"
465 help
466 If you say yes here you will get support for the
467 Maxim MAX6902 SPI RTC chip.
468
469 This driver can also be built as a module. If so, the module
470 will be called rtc-max6902.
471
Magnus Damm2805b962008-02-06 01:38:53 -0800472config RTC_DRV_R9701
473 tristate "Epson RTC-9701JE"
474 help
475 If you say yes here you will get support for the
476 Epson RTC-9701JE SPI RTC chip.
477
478 This driver can also be built as a module. If so, the module
479 will be called rtc-r9701.
480
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700481config RTC_DRV_RS5C348
482 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700483 help
484 If you say yes here you get support for the
485 Ricoh RS5C348A and RS5C348B RTC chips.
486
487 This driver can also be built as a module. If so, the module
488 will be called rtc-rs5c348.
489
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700490config RTC_DRV_DS3234
491 tristate "Maxim/Dallas DS3234"
492 help
493 If you say yes here you get support for the
494 Maxim/Dallas DS3234 SPI RTC chip.
495
496 This driver can also be built as a module. If so, the module
497 will be called rtc-ds3234.
498
Chris Verges7f3923a2009-09-22 16:46:20 -0700499config RTC_DRV_PCF2123
500 tristate "NXP PCF2123"
501 help
502 If you say yes here you get support for the NXP PCF2123
503 RTC chip.
504
505 This driver can also be built as a module. If so, the module
506 will be called rtc-pcf2123.
507
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700508endif # SPI_MASTER
509
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700510comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800511
David Brownell7be2c7c2007-02-10 01:46:02 -0800512# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
513# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
514# global rtc_lock ... it's not yet just another platform_device.
515
516config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700517 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700518 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700519 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800520 help
521 Say "yes" here to get direct support for the real time clock
522 found in every PC or ACPI-based system, and some other boards.
523 Specifically the original MC146818, compatibles like those in
524 PC south bridges, the DS12887 or M48T86, some multifunction
525 or LPC bus chips, and so on.
526
527 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800528 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800529 you can safely enable this driver if you don't know whether
530 or not your board has this kind of hardware.
531
532 This driver can also be built as a module. If so, the module
533 will be called rtc-cmos.
534
Feng Tang0146f262010-11-10 17:29:17 +0000535config RTC_DRV_VRTC
536 tristate "Virtual RTC for Moorestown platforms"
537 depends on X86_MRST
538 default y if X86_MRST
539
540 help
541 Say "yes" here to get direct support for the real time clock
542 found on Moorestown platforms. The VRTC is a emulated RTC that
543 derives its clock source from a real RTC in the PMIC. The MC146818
544 style programming interface is mostly conserved, but any
545 updates are done via IPC calls to the system controller FW.
546
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700547config RTC_DRV_DS1216
548 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700549 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700550 help
551 If you say yes here you get support for the Dallas DS1216 RTC chips.
552
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200553config RTC_DRV_DS1286
554 tristate "Dallas DS1286"
555 help
556 If you say yes here you get support for the Dallas DS1286 RTC chips.
557
Paul Mundt739d3402008-02-06 01:38:44 -0800558config RTC_DRV_DS1302
559 tristate "Dallas DS1302"
560 depends on SH_SECUREEDGE5410
561 help
562 If you say yes here you get support for the Dallas DS1302 RTC chips.
563
Andrew Sharp8f267952008-02-06 01:38:46 -0800564config RTC_DRV_DS1511
565 tristate "Dallas DS1511"
566 depends on RTC_CLASS
567 help
568 If you say yes here you get support for the
569 Dallas DS1511 timekeeping/watchdog chip.
570
571 This driver can also be built as a module. If so, the module
572 will be called rtc-ds1511.
573
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700574config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800575 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700576 help
577 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800578 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700579
580 This driver can also be built as a module. If so, the module
581 will be called rtc-ds1553.
582
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800583config RTC_DRV_DS1742
584 tristate "Maxim/Dallas DS1742/1743"
585 help
586 If you say yes here you get support for the
587 Maxim/Dallas DS1742/1743 timekeeping chip.
588
589 This driver can also be built as a module. If so, the module
590 will be called rtc-ds1742.
591
dann frazier5e3fd9e2009-03-31 15:24:48 -0700592config RTC_DRV_EFI
593 tristate "EFI RTC"
594 depends on IA64
595 help
596 If you say yes here you will get support for the EFI
597 Real Time Clock.
598
599 This driver can also be built as a module. If so, the module
600 will be called rtc-efi.
601
Thomas Hommel02964112007-07-21 04:37:58 -0700602config RTC_DRV_STK17TA8
603 tristate "Simtek STK17TA8"
604 depends on RTC_CLASS
605 help
606 If you say yes here you get support for the
607 Simtek STK17TA8 timekeeping chip.
608
609 This driver can also be built as a module. If so, the module
610 will be called rtc-stk17ta8.
611
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700612config RTC_DRV_M48T86
613 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700614 help
615 If you say Y here you will get support for the
616 ST M48T86 and Dallas DS12887 RTC chips.
617
618 This driver can also be built as a module. If so, the module
619 will be called rtc-m48t86.
620
Thomas Bogendoerferd1dbd822008-10-14 17:17:32 +0200621config RTC_DRV_M48T35
622 tristate "ST M48T35"
623 help
624 If you say Y here you will get support for the
625 ST M48T35 RTC chip.
626
627 This driver can also be built as a module, if so, the module
628 will be called "rtc-m48t35".
629
Mark Zhan2e774c72007-07-17 04:05:05 -0700630config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700631 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700632 help
633 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700634 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
635
636 These chips are usually found in Sun SPARC and UltraSPARC
637 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700638
639 This driver can also be built as a module, if so, the module
640 will be called "rtc-m48t59".
641
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100642config RTC_DRV_MSM6242
643 tristate "Oki MSM6242"
644 help
645 If you say yes here you get support for the Oki MSM6242
646 timekeeping chip. It is used in some Amiga models (e.g. A2000).
647
648 This driver can also be built as a module. If so, the module
649 will be called rtc-msm6242.
650
Baruch Siacheba54542010-08-10 18:02:13 -0700651config RTC_DRV_IMXDI
652 tristate "Freescale IMX DryIce Real Time Clock"
653 depends on ARCH_MX25
654 depends on RTC_CLASS
655 help
656 Support for Freescale IMX DryIce RTC
657
658 This driver can also be built as a module, if so, the module
659 will be called "rtc-imxdi".
660
Daniel Mackd00ed3c2009-09-22 16:46:23 -0700661config RTC_MXC
662 tristate "Freescale MXC Real Time Clock"
663 depends on ARCH_MXC
664 depends on RTC_CLASS
665 help
666 If you say yes here you get support for the Freescale MXC
667 RTC module.
668
669 This driver can also be built as a module, if so, the module
670 will be called "rtc-mxc".
671
David S. Millercca4c232008-08-29 01:29:53 -0700672config RTC_DRV_BQ4802
673 tristate "TI BQ4802"
674 help
675 If you say Y here you will get support for the TI
676 BQ4802 RTC chip.
677
678 This driver can also be built as a module. If so, the module
679 will be called rtc-bq4802.
680
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100681config RTC_DRV_RP5C01
682 tristate "Ricoh RP5C01"
683 help
684 If you say yes here you get support for the Ricoh RP5C01
685 timekeeping chip. It is used in some Amiga models (e.g. A3000
686 and A4000).
687
688 This driver can also be built as a module. If so, the module
689 will be called rtc-rp5c01.
690
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700691config RTC_DRV_V3020
692 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700693 help
694 If you say yes here you will get support for the
695 EM Microelectronic v3020 RTC chip.
696
697 This driver can also be built as a module. If so, the module
698 will be called rtc-v3020.
699
Mark Brown35c86bf2009-08-27 19:59:05 +0200700config RTC_DRV_WM831X
701 tristate "Wolfson Microelectronics WM831x RTC"
702 depends on MFD_WM831X
703 help
704 If you say yes here you will get support for the RTC subsystem
705 of the Wolfson Microelectronics WM831X series PMICs.
706
707 This driver can also be built as a module. If so, the module
708 will be called "rtc-wm831x".
709
Mark Brown077eaf52008-11-12 13:27:04 -0800710config RTC_DRV_WM8350
711 tristate "Wolfson Microelectronics WM8350 RTC"
712 depends on MFD_WM8350
713 help
714 If you say yes here you will get support for the RTC subsystem
715 of the Wolfson Microelectronics WM8350.
716
717 This driver can also be built as a module. If so, the module
718 will be called "rtc-wm8350".
719
Rajeev Kumar0942a712011-05-26 16:25:09 -0700720config RTC_DRV_SPEAR
721 tristate "SPEAR ST RTC"
722 depends on PLAT_SPEAR
723 default y
724 help
725 If you say Y here you will get support for the RTC found on
726 spear
727
Balaji Raoeae854b2009-01-09 01:50:51 +0100728config RTC_DRV_PCF50633
729 depends on MFD_PCF50633
730 tristate "NXP PCF50633 RTC"
731 help
732 If you say yes here you get support for the RTC subsystem of the
733 NXP PCF50633 used in embedded systems.
734
Linus Walleijbd207cf2009-08-30 23:49:04 +0200735config RTC_DRV_AB3100
736 tristate "ST-Ericsson AB3100 RTC"
737 depends on AB3100_CORE
738 default y if AB3100_CORE
739 help
740 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
741 support. This chip contains a battery- and capacitor-backed RTC.
742
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700743config RTC_DRV_AB8500
744 tristate "ST-Ericsson AB8500 RTC"
745 depends on AB8500_CORE
746 help
747 Select this to enable the ST-Ericsson AB8500 power management IC RTC
748 support. This chip contains a battery- and capacitor-backed RTC.
749
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800750config RTC_DRV_NUC900
751 tristate "NUC910/NUC920 RTC driver"
752 depends on RTC_CLASS && ARCH_W90X900
753 help
754 If you say yes here you get support for the RTC subsystem of the
755 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200756
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700757comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700758
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700759config RTC_DRV_MSM
760 tristate "RTC on Qualcomm Chipsets"
761 depends on ARCH_MSM
762 default y
763 help
764 RTC driver for Qualcomm chipsets
765
766
767config RTC_SECURE_TIME_SUPPORT
768 bool "Support for secure time on Qualcomm Chipsets"
769 depends on RTC_DRV_MSM = y
770 default y
771 help
772 Say yes here to have additional handle for reading secure time
773 maintained by ARM9.
774
775config RTC_ASYNC_MODEM_SUPPORT
776 bool "Support for time update on async modem boot"
777 depends on RTC_DRV_MSM && (ARCH_MSM8X60 || ARCH_QSD8X50)
778 default n
779 help
780 Say yes here to have the system time updated if there is
781 an asynchronous MODEM boot.
782
783config RTC_DRV_MSM7X00A
784 tristate "MSM7X00A"
785 depends on ARCH_MSM
786 default n
787 help
788 RTC driver for Qualcomm MSM7K chipsets
789
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600790config RTC_DRV_DAVINCI
791 tristate "TI DaVinci RTC"
792 depends on ARCH_DAVINCI_DM365
793 help
794 If you say yes here you get support for the RTC on the
795 DaVinci platforms (DM365).
796
797 This driver can also be built as a module. If so, the module
798 will be called rtc-davinci.
799
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700800config RTC_DRV_MSM7X00A
801 tristate "MSM7X00A"
802 depends on ARCH_MSM
803 default y
804 help
805 RTC driver for Qualcomm MSM7K chipsets
806
David Brownelldb68b182006-12-06 20:38:36 -0800807config RTC_DRV_OMAP
808 tristate "TI OMAP1"
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800809 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
David Brownelldb68b182006-12-06 20:38:36 -0800810 help
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800811 Say "yes" here to support the real time clock on TI OMAP1 and
812 DA8xx/OMAP-L13x chips. This driver can also be built as a
813 module called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800814
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530815config HAVE_S3C_RTC
816 bool
817 help
818 This will include RTC support for Samsung SoCs. If
819 you want to include RTC support for any machine, kindly
820 select this in the respective mach-XXXX/Kconfig file.
821
Ben Dooks1add6782006-07-01 04:36:26 -0700822config RTC_DRV_S3C
823 tristate "Samsung S3C series SoC RTC"
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530824 depends on ARCH_S3C2410 || ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700825 help
826 RTC (Realtime Clock) driver for the clock inbuilt into the
827 Samsung S3C24XX series of SoCs. This can provide periodic
828 interrupt rates from 1Hz to 64Hz for user programs, and
829 wakeup from Alarm.
830
831 The driver currently supports the common features on all the
832 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
833 and S3C2442.
834
835 This driver can also be build as a module. If so, the module
836 will be called rtc-s3c.
837
Alessandro Zummofd507e22006-03-27 01:16:45 -0800838config RTC_DRV_EP93XX
839 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700840 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800841 help
842 If you say yes here you get support for the
843 RTC embedded in the Cirrus Logic EP93XX processors.
844
845 This driver can also be built as a module. If so, the module
846 will be called rtc-ep93xx.
847
Richard Purdiee842f1c2006-03-27 01:16:46 -0800848config RTC_DRV_SA1100
849 tristate "SA11x0/PXA2xx"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700850 depends on ARCH_SA1100 || ARCH_PXA
Richard Purdiee842f1c2006-03-27 01:16:46 -0800851 help
852 If you say Y here you will get access to the real time clock
853 built into your SA11x0 or PXA2xx CPU.
854
855 To compile this driver as a module, choose M here: the
856 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800857
Paul Mundt317a6102006-09-27 17:13:19 +0900858config RTC_DRV_SH
859 tristate "SuperH On-Chip RTC"
Paul Mundt063adc72009-04-16 14:12:22 +0900860 depends on RTC_CLASS && SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900861 help
862 Say Y here to enable support for the on-chip RTC found in
863 most SuperH processors.
864
865 To compile this driver as a module, choose M here: the
866 module will be called rtc-sh.
867
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700868config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700869 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700870 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700871 help
872 If you say Y here you will get access to the real time clock
873 built into your NEC VR41XX CPU.
874
875 To compile this driver as a module, choose M here: the
876 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700877
Russell Kinga1909012008-04-20 12:08:36 +0100878config RTC_DRV_PL030
879 tristate "ARM AMBA PL030 RTC"
880 depends on ARM_AMBA
881 help
882 If you say Y here you will get access to ARM AMBA
883 PrimeCell PL030 RTC found on certain ARM SOCs.
884
885 To compile this driver as a module, choose M here: the
886 module will be called rtc-pl030.
887
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700888config RTC_DRV_PL031
889 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700890 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700891 help
892 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700893 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700894
895 To compile this driver as a module, choose M here: the
896 module will be called rtc-pl031.
897
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700898config RTC_DRV_AT32AP700X
899 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700900 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700901 help
902 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
903 AT32AP700x family processors.
904
Andrew Victor7fc39f62006-12-10 02:19:03 -0800905config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200906 tristate "AT91RM9200 or some AT91SAM9 RTC"
907 depends on ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
Andrew Victor788b1fc2006-06-25 05:48:27 -0700908 help
David Brownell4cdf8542008-02-06 01:38:59 -0800909 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200910 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800911 this is powered by the backup power supply.
912
913config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200914 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800915 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
916 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100917 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
918 (Real Time Timer). These timers are powered by the backup power
919 supply (such as a small coin cell battery), but do not need to
920 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800921
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200922 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
923 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800924
925config RTC_DRV_AT91SAM9_RTT
926 int
927 range 0 1
928 default 0
929 prompt "RTT module Number" if ARCH_AT91SAM9263
930 depends on RTC_DRV_AT91SAM9
931 help
Alessandro Zummoae64d162009-01-06 14:42:17 -0800932 More than one RTT module is available. You can choose which
933 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -0800934 OK to use, though some systems use that for non-RTC purposes.
935
936config RTC_DRV_AT91SAM9_GPBR
937 int
938 range 0 3 if !ARCH_AT91SAM9263
939 range 0 15 if ARCH_AT91SAM9263
940 default 0
941 prompt "Backup Register Number"
942 depends on RTC_DRV_AT91SAM9
943 help
944 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -0800945 Registers (GPBRs) as well as the RTT. You can choose which one
946 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -0800947 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -0700948
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800949config RTC_DRV_AU1XXX
950 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +0200951 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800952 help
953 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
954 counter) to be used as a RTC.
955
956 This driver can also be built as a module. If so, the module
957 will be called rtc-au1xxx.
958
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700959config RTC_DRV_BFIN
960 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -0700961 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700962 help
963 If you say yes here you will get support for the
964 Blackfin On-Chip Real Time Clock.
965
966 This driver can also be built as a module. If so, the module
967 will be called rtc-bfin.
968
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700969config RTC_DRV_RS5C313
970 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700971 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700972 help
973 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
974
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100975config RTC_DRV_GENERIC
976 tristate "Generic RTC support"
977 # Please consider writing a new RTC driver instead of using the generic
978 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +0900979 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +0000980 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100981 Say Y or M here to enable RTC support on systems using the generic
982 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +0000983 just say Y.
984
Robert Jarzmikdc944362009-01-06 14:42:14 -0800985config RTC_DRV_PXA
986 tristate "PXA27x/PXA3xx"
987 depends on ARCH_PXA
988 help
989 If you say Y here you will get access to the real time clock
990 built into your PXA27x or PXA3xx CPU.
991
992 This RTC driver uses PXA RTC registers available since pxa27x
993 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
994
Alexey Charkovf77fbdf2011-05-26 16:25:03 -0700995config RTC_DRV_VT8500
996 tristate "VIA/WonderMedia 85xx SoC RTC"
997 depends on ARCH_VT8500
998 help
999 If you say Y here you will get access to the real time clock
1000 built into your VIA VT8500 SoC or its relatives.
1001
Robert Jarzmikdc944362009-01-06 14:42:14 -08001002
David S. Miller7a138ed2008-08-29 01:32:43 -07001003config RTC_DRV_SUN4V
1004 bool "SUN4V Hypervisor RTC"
1005 depends on SPARC64
1006 help
1007 If you say Y here you will get support for the Hypervisor
1008 based RTC on SUN4V systems.
1009
David S. Millerde2cf332008-08-28 23:02:36 -07001010config RTC_DRV_STARFIRE
1011 bool "Starfire RTC"
1012 depends on SPARC64
1013 help
1014 If you say Y here you will get support for the RTC found on
1015 Starfire systems.
1016
Atsushi Nemoto0e149232009-01-06 14:42:22 -08001017config RTC_DRV_TX4939
1018 tristate "TX4939 SoC"
1019 depends on SOC_TX4939
1020 help
1021 Driver for the internal RTC (Realtime Clock) module found on
1022 Toshiba TX4939 SoC.
1023
Saeed Bisharadefb4512009-01-06 14:42:24 -08001024config RTC_DRV_MV
1025 tristate "Marvell SoC RTC"
Saeed Bisharada432432009-11-24 19:33:53 +02001026 depends on ARCH_KIRKWOOD || ARCH_DOVE
Saeed Bisharadefb4512009-01-06 14:42:24 -08001027 help
1028 If you say yes here you will get support for the in-chip RTC
1029 that can be found in some of Marvell's SoC devices, such as
1030 the Kirkwood 88F6281 and 88F6192.
1031
1032 This driver can also be built as a module. If so, the module
1033 will be called rtc-mv.
1034
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +01001035config RTC_DRV_PS3
1036 tristate "PS3 RTC"
1037 depends on PPC_PS3
1038 help
1039 If you say yes here you will get support for the RTC on PS3.
1040
1041 This driver can also be built as a module. If so, the module
1042 will be called rtc-ps3.
1043
Linus Walleijaa958f52009-09-22 16:46:24 -07001044config RTC_DRV_COH901331
1045 tristate "ST-Ericsson COH 901 331 RTC"
1046 depends on ARCH_U300
1047 help
1048 If you say Y here you will get access to ST-Ericsson
1049 COH 901 331 RTC clock found in some ST-Ericsson Mobile
1050 Platforms.
1051
1052 This driver can also be built as a module. If so, the module
1053 will be called "rtc-coh901331".
1054
1055
dmitry pervushindf17f632009-09-22 16:46:26 -07001056config RTC_DRV_STMP
1057 tristate "Freescale STMP3xxx RTC"
1058 depends on ARCH_STMP3XXX
1059 help
1060 If you say yes here you will get support for the onboard
1061 STMP3xxx RTC.
1062
1063 This driver can also be built as a module. If so, the module
1064 will be called rtc-stmp3xxx.
1065
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -07001066config RTC_DRV_PCAP
1067 tristate "PCAP RTC"
1068 depends on EZX_PCAP
1069 help
1070 If you say Y here you will get support for the RTC found on
1071 the PCAP2 ASIC used on some Motorola phones.
1072
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001073config RTC_DRV_MC13XXX
1074 depends on MFD_MC13XXX
1075 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f22009-12-15 16:46:09 -08001076 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001077 This enables support for the RTCs found on Freescale's PMICs
1078 MC13783 and MC13892.
Uwe Kleine-König43299f22009-12-15 16:46:09 -08001079
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001080config RTC_DRV_MPC5121
1081 tristate "Freescale MPC5121 built-in RTC"
1082 depends on PPC_MPC512x && RTC_CLASS
1083 help
1084 If you say yes here you will get support for the
1085 built-in RTC MPC5121.
1086
1087 This driver can also be built as a module. If so, the module
1088 will be called rtc-mpc5121.
1089
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001090config RTC_DRV_JZ4740
1091 tristate "Ingenic JZ4740 SoC"
1092 depends on RTC_CLASS
1093 depends on MACH_JZ4740
1094 help
1095 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1096 controller.
1097
1098 This driver can also be buillt as a module. If so, the module
1099 will be called rtc-jz4740.
1100
Kevin Wells9aa449b2010-10-27 15:33:01 -07001101config RTC_DRV_LPC32XX
1102 depends on ARCH_LPC32XX
1103 tristate "NXP LPC32XX RTC"
1104 help
1105 This enables support for the NXP RTC in the LPC32XX
1106
1107 This driver can also be buillt as a module. If so, the module
1108 will be called rtc-lpc32xx.
1109
Andrew Chewff859ba2011-03-22 16:34:55 -07001110config RTC_DRV_TEGRA
1111 tristate "NVIDIA Tegra Internal RTC driver"
1112 depends on RTC_CLASS && ARCH_TEGRA
1113 help
1114 If you say yes here you get support for the
1115 Tegra 200 series internal RTC module.
1116
1117 This drive can also be built as a module. If so, the module
1118 will be called rtc-tegra.
1119
Chris Metcalfdd196a22011-05-09 13:28:43 -04001120config RTC_DRV_TILE
1121 tristate "Tilera hypervisor RTC support"
1122 depends on TILE
1123 help
1124 Enable support for the Linux driver side of the Tilera
1125 hypervisor's real-time clock interface.
1126
Guan Xuetao2809e802011-05-26 16:43:27 +08001127config RTC_DRV_PUV3
1128 tristate "PKUnity v3 RTC support"
1129 depends on ARCH_PUV3
1130 help
1131 This enables support for the RTC in the PKUnity-v3 SoCs.
1132
1133 This drive can also be built as a module. If so, the module
1134 will be called rtc-puv3.
1135
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -07001136config RTC_PM8058
1137 tristate "PMIC8058 RTC support"
1138 default n
1139 depends on PMIC8058
1140 help
1141 Say Y here if you want support for the PMIC8058 RTC.
1142
1143 To compile this driver as a module, choose M here: the
1144 module will be called pmic8058-rtc.
1145
1146config RTC_PM8058_WRITE_ENABLE
1147 bool "PM8058 RTC write enable"
1148 default n
1149 depends on RTC_PM8058
1150 help
1151 Say Y here if you want to support the write operation for
1152 PMIC8058 RTC.
1153
1154 By default the write operation is not supported.
1155
1156config RTC_DRV_PM8XXX
1157 tristate "Qualcomm PMIC8XXX RTC"
1158 depends on MFD_PM8XXX
1159 help
1160 Say Y here if you want to support the Qualcomm PMIC8XXX RTC.
1161
1162 To compile this driver as a module, choose M here: the
1163 module will be called rtc-pm8xxx.
1164
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001165endif # RTC_CLASS