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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
John Stultz6e57b1d2011-02-11 17:45:40 -080097config RTC_INTF_DEV_UIE_EMUL
98 bool "RTC UIE emulation on dev interface"
99 depends on RTC_INTF_DEV
100 help
101 Provides an emulation for RTC_UIE if the underlying rtc chip
102 driver does not expose RTC_UIE ioctls. Those requests generate
103 once-per-second update interrupts, used for synchronization.
104
105 The emulation code will read the time from the hardware
106 clock several times per second, please enable this option
107 only if you know that you really need it.
108
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700109config RTC_DRV_TEST
110 tristate "Test driver/device"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700111 help
112 If you say yes here you get support for the
113 RTC test driver. It's a software RTC which can be
114 used to test the RTC subsystem APIs. It gets
115 the time from the system clock.
116 You want this driver only if you are doing development
117 on the RTC subsystem. Please read the source code
118 for further details.
119
120 This driver can also be built as a module. If so, the module
121 will be called rtc-test.
122
123comment "I2C RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700124 depends on I2C
125
126if I2C
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700127
Haojian Zhuang008b3042011-05-06 17:21:20 +0800128config RTC_DRV_88PM860X
129 tristate "Marvell 88PM860x"
130 depends on RTC_CLASS && I2C && MFD_88PM860X
131 help
132 If you say yes here you get support for RTC function in Marvell
133 88PM860x chips.
134
135 This driver can also be built as a module. If so, the module
136 will be called rtc-88pm860x.
137
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700138config RTC_DRV_DS1307
Matthias Fuchsa2166852009-03-31 15:24:58 -0700139 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700140 help
141 If you say yes here you get support for various compatible RTC
Alessandro Zummoae64d162009-01-06 14:42:17 -0800142 chips (often with battery backup) connected with I2C. This driver
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700143 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
Matthias Fuchsa2166852009-03-31 15:24:58 -0700144 EPSON RX-8025 and probably other chips. In some cases the RTC
145 must already have been initialized (by manufacturing or a
146 bootloader).
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700147
148 The first seven registers on these chips hold an RTC, and other
149 registers may add features such as NVRAM, a trickle charger for
Alessandro Zummoae64d162009-01-06 14:42:17 -0800150 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
David Brownell682d73f2007-11-14 16:58:32 -0800151 sysfs, but other chip features may not be available.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700152
153 This driver can also be built as a module. If so, the module
154 will be called rtc-ds1307.
155
Scott Woodbf4994d2007-10-16 01:28:19 -0700156config RTC_DRV_DS1374
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800157 tristate "Dallas/Maxim DS1374"
Scott Woodbf4994d2007-10-16 01:28:19 -0700158 depends on RTC_CLASS && I2C
159 help
160 If you say yes here you get support for Dallas Semiconductor
Alessandro Zummoae64d162009-01-06 14:42:17 -0800161 DS1374 real-time clock chips. If an interrupt is associated
Scott Woodbf4994d2007-10-16 01:28:19 -0700162 with the device, the alarm functionality is supported.
163
Alessandro Zummoae64d162009-01-06 14:42:17 -0800164 This driver can also be built as a module. If so, the module
Scott Woodbf4994d2007-10-16 01:28:19 -0700165 will be called rtc-ds1374.
166
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700167config RTC_DRV_DS1672
168 tristate "Dallas/Maxim DS1672"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700169 help
170 If you say yes here you get support for the
171 Dallas/Maxim DS1672 timekeeping chip.
172
173 This driver can also be built as a module. If so, the module
174 will be called rtc-ds1672.
175
Roy Zangc03675f2010-08-10 18:02:20 -0700176config RTC_DRV_DS3232
177 tristate "Dallas/Maxim DS3232"
178 depends on RTC_CLASS && I2C
179 help
180 If you say yes here you get support for Dallas Semiconductor
Lan Chunhe-B25806f46418c2010-10-27 15:33:12 -0700181 DS3232 real-time clock chips. If an interrupt is associated
182 with the device, the alarm functionality is supported.
Roy Zangc03675f2010-08-10 18:02:20 -0700183
184 This driver can also be built as a module. If so, the module
185 will be called rtc-ds3232.
186
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700187config RTC_DRV_MAX6900
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800188 tristate "Maxim MAX6900"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700189 help
190 If you say yes here you will get support for the
191 Maxim MAX6900 I2C RTC chip.
192
193 This driver can also be built as a module. If so, the module
194 will be called rtc-max6900.
195
Haojian Zhuanga39069f2010-01-25 06:30:29 -0500196config RTC_DRV_MAX8925
197 tristate "Maxim MAX8925"
198 depends on MFD_MAX8925
199 help
200 If you say yes here you will get support for the
201 RTC of Maxim MAX8925 PMIC.
202
203 This driver can also be built as a module. If so, the module
204 will be called rtc-max8925.
205
Joonyoung Shim9b16c0a2010-08-06 11:28:08 +0900206config RTC_DRV_MAX8998
207 tristate "Maxim MAX8998"
208 depends on MFD_MAX8998
209 help
210 If you say yes here you will get support for the
211 RTC of Maxim MAX8998 PMIC.
212
213 This driver can also be built as a module. If so, the module
214 will be called rtc-max8998.
215
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700216config RTC_DRV_RS5C372
Paul Mundt5d4529b2008-10-21 20:12:59 +0900217 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700218 help
219 If you say yes here you get support for the
Paul Mundt5d4529b2008-10-21 20:12:59 +0900220 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700221
222 This driver can also be built as a module. If so, the module
223 will be called rtc-rs5c372.
224
225config RTC_DRV_ISL1208
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800226 tristate "Intersil ISL1208"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700227 help
228 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800229 Intersil ISL1208 RTC chip.
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700230
231 This driver can also be built as a module. If so, the module
232 will be called rtc-isl1208.
233
Roman Fietzed6c74282010-08-10 18:02:14 -0700234config RTC_DRV_ISL12022
235 tristate "Intersil ISL12022"
236 help
237 If you say yes here you get support for the
238 Intersil ISL12022 RTC chip.
239
240 This driver can also be built as a module. If so, the module
241 will be called rtc-isl12022.
242
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700243config RTC_DRV_X1205
244 tristate "Xicor/Intersil X1205"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700245 help
246 If you say yes here you get support for the
247 Xicor/Intersil X1205 RTC chip.
248
249 This driver can also be built as a module. If so, the module
250 will be called rtc-x1205.
251
252config RTC_DRV_PCF8563
253 tristate "Philips PCF8563/Epson RTC8564"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700254 help
255 If you say yes here you get support for the
256 Philips PCF8563 RTC chip. The Epson RTC8564
257 should work as well.
258
259 This driver can also be built as a module. If so, the module
260 will be called rtc-pcf8563.
261
262config RTC_DRV_PCF8583
263 tristate "Philips PCF8583"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700264 help
265 If you say yes here you get support for the Philips PCF8583
266 RTC chip found on Acorn RiscPCs. This driver supports the
267 platform specific method of retrieving the current year from
268 the RTC's SRAM. It will work on other platforms with the same
269 chip, but the year will probably have to be tweaked.
270
271 This driver can also be built as a module. If so, the module
272 will be called rtc-pcf8583.
273
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700274config RTC_DRV_M41T80
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700275 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700276 help
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700277 If you say Y here you will get support for the ST M41T60
278 and M41T80 RTC chips series. Currently, the following chips are
Daniel Glocknerf30281f2009-04-02 16:57:03 -0700279 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700280 M41ST85, and M41ST87.
Atsushi Nemotocaaff562007-07-17 04:05:02 -0700281
282 This driver can also be built as a module. If so, the module
283 will be called rtc-m41t80.
284
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700285config RTC_DRV_M41T80_WDT
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700286 bool "ST M41T65/M41T80 series RTC watchdog timer"
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700287 depends on RTC_DRV_M41T80
288 help
289 If you say Y here you will get support for the
Steven A. Falcod3a126f2008-10-15 22:03:07 -0700290 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
Atsushi Nemoto617780d2007-07-17 04:05:04 -0700291
Piotr Ziecik1ce7c832009-12-15 16:46:12 -0800292config RTC_DRV_BQ32K
293 tristate "TI BQ32000"
294 help
295 If you say Y here you will get support for the TI
296 BQ32000 I2C RTC chip.
297
298 This driver can also be built as a module. If so, the module
299 will be called rtc-bq32k.
300
David Brownellafd8d0f2009-02-04 15:12:01 -0800301config RTC_DRV_DM355EVM
302 tristate "TI DaVinci DM355 EVM RTC"
303 depends on MFD_DM355EVM_MSP
304 help
305 Supports the RTC firmware in the MSP430 on the DM355 EVM.
306
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700307config RTC_DRV_TWL92330
308 boolean "TI TWL92330/Menelaus"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700309 depends on MENELAUS
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700310 help
311 If you say yes here you get support for the RTC on the
Matt LaPlante01dd2fb2007-10-20 01:34:40 +0200312 TWL92330 "Menelaus" power management chip, used with OMAP2
Alessandro Zummoae64d162009-01-06 14:42:17 -0800313 platforms. The support is integrated with the rest of
Tony Lindgren0c4a59f2007-07-17 04:06:09 -0700314 the Menelaus driver; it's not separate module.
315
David Brownellf96411a2008-10-20 23:50:05 +0200316config RTC_DRV_TWL4030
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100317 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
David Brownellf96411a2008-10-20 23:50:05 +0200318 depends on RTC_CLASS && TWL4030_CORE
319 help
320 If you say yes here you get support for the RTC on the
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100321 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
David Brownellf96411a2008-10-20 23:50:05 +0200322
323 This driver can also be built as a module. If so, the module
Balaji T Ka6b49ff2009-12-13 22:16:31 +0100324 will be called rtc-twl.
David Brownellf96411a2008-10-20 23:50:05 +0200325
Byron Bradleyc46288b2008-03-04 14:28:25 -0800326config RTC_DRV_S35390A
327 tristate "Seiko Instruments S-35390A"
Randy Dunlapd4795402008-04-10 21:29:18 -0700328 select BITREVERSE
Byron Bradleyc46288b2008-03-04 14:28:25 -0800329 help
330 If you say yes here you will get support for the Seiko
331 Instruments S-35390A.
332
333 This driver can also be built as a module. If so the module
334 will be called rtc-s35390a.
335
Sergey Lapinc6d8f402008-06-12 15:21:55 -0700336config RTC_DRV_FM3130
337 tristate "Ramtron FM3130"
338 help
339 If you say Y here you will get support for the
340 Ramtron FM3130 RTC chips.
341 Ramtron FM3130 is a chip with two separate devices inside,
342 RTC clock and FRAM. This driver provides only RTC functionality.
343
344 This driver can also be built as a module. If so the module
345 will be called rtc-fm3130.
346
Martyn Welcha7fa9852008-11-12 13:27:06 -0800347config RTC_DRV_RX8581
348 tristate "Epson RX-8581"
349 help
350 If you say yes here you will get support for the Epson RX-8581.
351
352 This driver can also be built as a module. If so the module
353 will be called rtc-rx8581.
354
Wolfgang Grandegger3c2b9072009-06-17 16:26:11 -0700355config RTC_DRV_RX8025
356 tristate "Epson RX-8025SA/NB"
357 help
358 If you say yes here you get support for the Epson
359 RX-8025SA/NB RTC chips.
360
361 This driver can also be built as a module. If so, the module
362 will be called rtc-rx8025.
363
Mike Rapoportae3551f2011-05-26 16:25:04 -0700364config RTC_DRV_EM3027
365 tristate "EM Microelectronic EM3027"
366 help
367 If you say yes here you get support for the EM
368 Microelectronic EM3027 RTC chips.
369
370 This driver can also be built as a module. If so, the module
371 will be called rtc-em3027.
372
Heiko Schocher52365232011-05-26 16:25:05 -0700373config RTC_DRV_RV3029C2
374 tristate "Micro Crystal RTC"
375 help
376 If you say yes here you get support for the Micro Crystal
377 RV3029-C2 RTC chips.
378
379 This driver can also be built as a module. If so, the module
380 will be called rtc-rv3029c2.
381
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700382endif # I2C
383
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700384comment "SPI RTC drivers"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700385
386if SPI_MASTER
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700387
Voss, Nikolaus74d34d42011-05-26 16:25:07 -0700388config RTC_DRV_M41T93
389 tristate "ST M41T93"
390 help
391 If you say yes here you will get support for the
392 ST M41T93 SPI RTC chip.
393
394 This driver can also be built as a module. If so, the module
395 will be called rtc-m41t93.
396
Kim B. Heino8fc2c762008-07-23 21:30:34 -0700397config RTC_DRV_M41T94
398 tristate "ST M41T94"
399 help
400 If you say yes here you will get support for the
401 ST M41T94 SPI RTC chip.
402
403 This driver can also be built as a module. If so, the module
404 will be called rtc-m41t94.
405
David Brownell53e84b62008-07-23 21:30:36 -0700406config RTC_DRV_DS1305
407 tristate "Dallas/Maxim DS1305/DS1306"
408 help
409 Select this driver to get support for the Dallas/Maxim DS1305
Alessandro Zummoae64d162009-01-06 14:42:17 -0800410 and DS1306 real time clock chips. These support a trickle
David Brownell53e84b62008-07-23 21:30:36 -0700411 charger, alarms, and NVRAM in addition to the clock.
412
413 This driver can also be built as a module. If so, the module
414 will be called rtc-ds1305.
415
Mark Jackson06de1802008-11-12 13:27:07 -0800416config RTC_DRV_DS1390
417 tristate "Dallas/Maxim DS1390/93/94"
418 help
Alessandro Zummo7b9b2ef2009-01-06 14:42:16 -0800419 If you say yes here you get support for the
420 Dallas/Maxim DS1390/93/94 chips.
Mark Jackson06de1802008-11-12 13:27:07 -0800421
422 This driver only supports the RTC feature, and not other chip
423 features such as alarms and trickle charging.
424
425 This driver can also be built as a module. If so, the module
426 will be called rtc-ds1390.
427
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800428config RTC_DRV_MAX6902
429 tristate "Maxim MAX6902"
430 help
431 If you say yes here you will get support for the
432 Maxim MAX6902 SPI RTC chip.
433
434 This driver can also be built as a module. If so, the module
435 will be called rtc-max6902.
436
Magnus Damm2805b962008-02-06 01:38:53 -0800437config RTC_DRV_R9701
438 tristate "Epson RTC-9701JE"
439 help
440 If you say yes here you will get support for the
441 Epson RTC-9701JE SPI RTC chip.
442
443 This driver can also be built as a module. If so, the module
444 will be called rtc-r9701.
445
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700446config RTC_DRV_RS5C348
447 tristate "Ricoh RS5C348A/B"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700448 help
449 If you say yes here you get support for the
450 Ricoh RS5C348A and RS5C348B RTC chips.
451
452 This driver can also be built as a module. If so, the module
453 will be called rtc-rs5c348.
454
Dennis Aberilla2f9b75e2008-10-15 22:02:57 -0700455config RTC_DRV_DS3234
456 tristate "Maxim/Dallas DS3234"
457 help
458 If you say yes here you get support for the
459 Maxim/Dallas DS3234 SPI RTC chip.
460
461 This driver can also be built as a module. If so, the module
462 will be called rtc-ds3234.
463
Chris Verges7f3923a2009-09-22 16:46:20 -0700464config RTC_DRV_PCF2123
465 tristate "NXP PCF2123"
466 help
467 If you say yes here you get support for the NXP PCF2123
468 RTC chip.
469
470 This driver can also be built as a module. If so, the module
471 will be called rtc-pcf2123.
472
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700473endif # SPI_MASTER
474
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700475comment "Platform RTC drivers"
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800476
David Brownell7be2c7c2007-02-10 01:46:02 -0800477# this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
478# requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
479# global rtc_lock ... it's not yet just another platform_device.
480
481config RTC_DRV_CMOS
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700482 tristate "PC-style 'CMOS'"
Andrew Morton5ec87702008-09-22 21:40:04 -0700483 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
David Brownellc7500902008-04-28 02:11:52 -0700484 default y if X86
David Brownell7be2c7c2007-02-10 01:46:02 -0800485 help
486 Say "yes" here to get direct support for the real time clock
487 found in every PC or ACPI-based system, and some other boards.
488 Specifically the original MC146818, compatibles like those in
489 PC south bridges, the DS12887 or M48T86, some multifunction
490 or LPC bus chips, and so on.
491
492 Your system will need to define the platform device used by
Alessandro Zummoae64d162009-01-06 14:42:17 -0800493 this driver, otherwise it won't be accessible. This means
David Brownell7be2c7c2007-02-10 01:46:02 -0800494 you can safely enable this driver if you don't know whether
495 or not your board has this kind of hardware.
496
497 This driver can also be built as a module. If so, the module
498 will be called rtc-cmos.
499
Feng Tang0146f262010-11-10 17:29:17 +0000500config RTC_DRV_VRTC
501 tristate "Virtual RTC for Moorestown platforms"
502 depends on X86_MRST
503 default y if X86_MRST
504
505 help
506 Say "yes" here to get direct support for the real time clock
507 found on Moorestown platforms. The VRTC is a emulated RTC that
508 derives its clock source from a real RTC in the PMIC. The MC146818
509 style programming interface is mostly conserved, but any
510 updates are done via IPC calls to the system controller FW.
511
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700512config RTC_DRV_DS1216
513 tristate "Dallas DS1216"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700514 depends on SNI_RM
Thomas Bogendoerfer537739d2007-07-17 04:05:06 -0700515 help
516 If you say yes here you get support for the Dallas DS1216 RTC chips.
517
Thomas Bogendoerfer5f119f22008-10-14 17:16:59 +0200518config RTC_DRV_DS1286
519 tristate "Dallas DS1286"
520 help
521 If you say yes here you get support for the Dallas DS1286 RTC chips.
522
Paul Mundt739d3402008-02-06 01:38:44 -0800523config RTC_DRV_DS1302
524 tristate "Dallas DS1302"
525 depends on SH_SECUREEDGE5410
526 help
527 If you say yes here you get support for the Dallas DS1302 RTC chips.
528
Andrew Sharp8f267952008-02-06 01:38:46 -0800529config RTC_DRV_DS1511
530 tristate "Dallas DS1511"
531 depends on RTC_CLASS
532 help
533 If you say yes here you get support for the
534 Dallas DS1511 timekeeping/watchdog chip.
535
536 This driver can also be built as a module. If so, the module
537 will be called rtc-ds1511.
538
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700539config RTC_DRV_DS1553
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800540 tristate "Maxim/Dallas DS1553"
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700541 help
542 If you say yes here you get support for the
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800543 Maxim/Dallas DS1553 timekeeping chip.
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700544
545 This driver can also be built as a module. If so, the module
546 will be called rtc-ds1553.
547
Alessandro Zummo09b6bdb3b2008-02-06 01:38:40 -0800548config RTC_DRV_DS1742
549 tristate "Maxim/Dallas DS1742/1743"
550 help
551 If you say yes here you get support for the
552 Maxim/Dallas DS1742/1743 timekeeping chip.
553
554 This driver can also be built as a module. If so, the module
555 will be called rtc-ds1742.
556
dann frazier5e3fd9e2009-03-31 15:24:48 -0700557config RTC_DRV_EFI
558 tristate "EFI RTC"
559 depends on IA64
560 help
561 If you say yes here you will get support for the EFI
562 Real Time Clock.
563
564 This driver can also be built as a module. If so, the module
565 will be called rtc-efi.
566
Thomas Hommel02964112007-07-21 04:37:58 -0700567config RTC_DRV_STK17TA8
568 tristate "Simtek STK17TA8"
569 depends on RTC_CLASS
570 help
571 If you say yes here you get support for the
572 Simtek STK17TA8 timekeeping chip.
573
574 This driver can also be built as a module. If so, the module
575 will be called rtc-stk17ta8.
576
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700577config RTC_DRV_M48T86
578 tristate "ST M48T86/Dallas DS12887"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700579 help
580 If you say Y here you will get support for the
581 ST M48T86 and Dallas DS12887 RTC chips.
582
583 This driver can also be built as a module. If so, the module
584 will be called rtc-m48t86.
585
Thomas Bogendoerferd1dbd82e2008-10-14 17:17:32 +0200586config RTC_DRV_M48T35
587 tristate "ST M48T35"
588 help
589 If you say Y here you will get support for the
590 ST M48T35 RTC chip.
591
592 This driver can also be built as a module, if so, the module
593 will be called "rtc-m48t35".
594
Mark Zhan2e774c72007-07-17 04:05:05 -0700595config RTC_DRV_M48T59
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700596 tristate "ST M48T59/M48T08/M48T02"
Mark Zhan2e774c72007-07-17 04:05:05 -0700597 help
598 If you say Y here you will get support for the
Krzysztof Helt94fe7422008-09-03 15:12:34 -0700599 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
600
601 These chips are usually found in Sun SPARC and UltraSPARC
602 workstations.
Mark Zhan2e774c72007-07-17 04:05:05 -0700603
604 This driver can also be built as a module, if so, the module
605 will be called "rtc-m48t59".
606
Geert Uytterhoeven4f9b9bb2009-03-18 23:29:27 +0100607config RTC_DRV_MSM6242
608 tristate "Oki MSM6242"
609 help
610 If you say yes here you get support for the Oki MSM6242
611 timekeeping chip. It is used in some Amiga models (e.g. A2000).
612
613 This driver can also be built as a module. If so, the module
614 will be called rtc-msm6242.
615
Baruch Siacheba54542010-08-10 18:02:13 -0700616config RTC_DRV_IMXDI
617 tristate "Freescale IMX DryIce Real Time Clock"
618 depends on ARCH_MX25
619 depends on RTC_CLASS
620 help
621 Support for Freescale IMX DryIce RTC
622
623 This driver can also be built as a module, if so, the module
624 will be called "rtc-imxdi".
625
Daniel Mackd00ed3c2009-09-22 16:46:23 -0700626config RTC_MXC
627 tristate "Freescale MXC Real Time Clock"
628 depends on ARCH_MXC
629 depends on RTC_CLASS
630 help
631 If you say yes here you get support for the Freescale MXC
632 RTC module.
633
634 This driver can also be built as a module, if so, the module
635 will be called "rtc-mxc".
636
David S. Millercca4c232008-08-29 01:29:53 -0700637config RTC_DRV_BQ4802
638 tristate "TI BQ4802"
639 help
640 If you say Y here you will get support for the TI
641 BQ4802 RTC chip.
642
643 This driver can also be built as a module. If so, the module
644 will be called rtc-bq4802.
645
Geert Uytterhoeven4f672ce2009-03-18 23:29:27 +0100646config RTC_DRV_RP5C01
647 tristate "Ricoh RP5C01"
648 help
649 If you say yes here you get support for the Ricoh RP5C01
650 timekeeping chip. It is used in some Amiga models (e.g. A3000
651 and A4000).
652
653 This driver can also be built as a module. If so, the module
654 will be called rtc-rp5c01.
655
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700656config RTC_DRV_V3020
657 tristate "EM Microelectronic V3020"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700658 help
659 If you say yes here you will get support for the
660 EM Microelectronic v3020 RTC chip.
661
662 This driver can also be built as a module. If so, the module
663 will be called rtc-v3020.
664
Mark Brown35c86bf2009-08-27 19:59:05 +0200665config RTC_DRV_WM831X
666 tristate "Wolfson Microelectronics WM831x RTC"
667 depends on MFD_WM831X
668 help
669 If you say yes here you will get support for the RTC subsystem
670 of the Wolfson Microelectronics WM831X series PMICs.
671
672 This driver can also be built as a module. If so, the module
673 will be called "rtc-wm831x".
674
Mark Brown077eaf52008-11-12 13:27:04 -0800675config RTC_DRV_WM8350
676 tristate "Wolfson Microelectronics WM8350 RTC"
677 depends on MFD_WM8350
678 help
679 If you say yes here you will get support for the RTC subsystem
680 of the Wolfson Microelectronics WM8350.
681
682 This driver can also be built as a module. If so, the module
683 will be called "rtc-wm8350".
684
Rajeev Kumar0942a712011-05-26 16:25:09 -0700685config RTC_DRV_SPEAR
686 tristate "SPEAR ST RTC"
687 depends on PLAT_SPEAR
688 default y
689 help
690 If you say Y here you will get support for the RTC found on
691 spear
692
Balaji Raoeae854b2009-01-09 01:50:51 +0100693config RTC_DRV_PCF50633
694 depends on MFD_PCF50633
695 tristate "NXP PCF50633 RTC"
696 help
697 If you say yes here you get support for the RTC subsystem of the
698 NXP PCF50633 used in embedded systems.
699
Linus Walleijbd207cf2009-08-30 23:49:04 +0200700config RTC_DRV_AB3100
701 tristate "ST-Ericsson AB3100 RTC"
702 depends on AB3100_CORE
703 default y if AB3100_CORE
704 help
705 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
706 support. This chip contains a battery- and capacitor-backed RTC.
707
Virupax Sadashivpetimath0af62f42010-05-26 14:42:14 -0700708config RTC_DRV_AB8500
709 tristate "ST-Ericsson AB8500 RTC"
710 depends on AB8500_CORE
711 help
712 Select this to enable the ST-Ericsson AB8500 power management IC RTC
713 support. This chip contains a battery- and capacitor-backed RTC.
714
Wan ZongShunafd49a7e2009-12-15 16:46:17 -0800715config RTC_DRV_NUC900
716 tristate "NUC910/NUC920 RTC driver"
717 depends on RTC_CLASS && ARCH_W90X900
718 help
719 If you say yes here you get support for the RTC subsystem of the
720 NUC910/NUC920 used in embedded systems.
Linus Walleijbd207cf2009-08-30 23:49:04 +0200721
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700722comment "on-CPU RTC drivers"
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700723
Miguel Aguilar8ecf6c52009-11-05 08:51:34 -0600724config RTC_DRV_DAVINCI
725 tristate "TI DaVinci RTC"
726 depends on ARCH_DAVINCI_DM365
727 help
728 If you say yes here you get support for the RTC on the
729 DaVinci platforms (DM365).
730
731 This driver can also be built as a module. If so, the module
732 will be called rtc-davinci.
733
David Brownelldb68b182006-12-06 20:38:36 -0800734config RTC_DRV_OMAP
735 tristate "TI OMAP1"
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800736 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
David Brownelldb68b182006-12-06 20:38:36 -0800737 help
Mark A. Greer8cfde8c2009-12-15 16:46:11 -0800738 Say "yes" here to support the real time clock on TI OMAP1 and
739 DA8xx/OMAP-L13x chips. This driver can also be built as a
740 module called rtc-omap.
David Brownelldb68b182006-12-06 20:38:36 -0800741
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530742config HAVE_S3C_RTC
743 bool
744 help
745 This will include RTC support for Samsung SoCs. If
746 you want to include RTC support for any machine, kindly
747 select this in the respective mach-XXXX/Kconfig file.
748
Ben Dooks1add6782006-07-01 04:36:26 -0700749config RTC_DRV_S3C
750 tristate "Samsung S3C series SoC RTC"
Atul Dahiya16f4efe2010-07-20 16:38:49 +0530751 depends on ARCH_S3C2410 || ARCH_S3C64XX || HAVE_S3C_RTC
Ben Dooks1add6782006-07-01 04:36:26 -0700752 help
753 RTC (Realtime Clock) driver for the clock inbuilt into the
754 Samsung S3C24XX series of SoCs. This can provide periodic
755 interrupt rates from 1Hz to 64Hz for user programs, and
756 wakeup from Alarm.
757
758 The driver currently supports the common features on all the
759 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
760 and S3C2442.
761
762 This driver can also be build as a module. If so, the module
763 will be called rtc-s3c.
764
Alessandro Zummofd507e22006-03-27 01:16:45 -0800765config RTC_DRV_EP93XX
766 tristate "Cirrus Logic EP93XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700767 depends on ARCH_EP93XX
Alessandro Zummofd507e22006-03-27 01:16:45 -0800768 help
769 If you say yes here you get support for the
770 RTC embedded in the Cirrus Logic EP93XX processors.
771
772 This driver can also be built as a module. If so, the module
773 will be called rtc-ep93xx.
774
Richard Purdiee842f1c2006-03-27 01:16:46 -0800775config RTC_DRV_SA1100
776 tristate "SA11x0/PXA2xx"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700777 depends on ARCH_SA1100 || ARCH_PXA
Richard Purdiee842f1c2006-03-27 01:16:46 -0800778 help
779 If you say Y here you will get access to the real time clock
780 built into your SA11x0 or PXA2xx CPU.
781
782 To compile this driver as a module, choose M here: the
783 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800784
Paul Mundt317a6102006-09-27 17:13:19 +0900785config RTC_DRV_SH
786 tristate "SuperH On-Chip RTC"
Paul Mundt063adc72009-04-16 14:12:22 +0900787 depends on RTC_CLASS && SUPERH && HAVE_CLK
Paul Mundt317a6102006-09-27 17:13:19 +0900788 help
789 Say Y here to enable support for the on-chip RTC found in
790 most SuperH processors.
791
792 To compile this driver as a module, choose M here: the
793 module will be called rtc-sh.
794
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700795config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700796 tristate "NEC VR41XX"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700797 depends on CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700798 help
799 If you say Y here you will get access to the real time clock
800 built into your NEC VR41XX CPU.
801
802 To compile this driver as a module, choose M here: the
803 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700804
Russell Kinga1909012008-04-20 12:08:36 +0100805config RTC_DRV_PL030
806 tristate "ARM AMBA PL030 RTC"
807 depends on ARM_AMBA
808 help
809 If you say Y here you will get access to ARM AMBA
810 PrimeCell PL030 RTC found on certain ARM SOCs.
811
812 To compile this driver as a module, choose M here: the
813 module will be called rtc-pl030.
814
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700815config RTC_DRV_PL031
816 tristate "ARM AMBA PL031 RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700817 depends on ARM_AMBA
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700818 help
819 If you say Y here you will get access to ARM AMBA
Alessandro Zummo09a21e52007-05-08 00:33:48 -0700820 PrimeCell PL031 RTC found on certain ARM SOCs.
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700821
822 To compile this driver as a module, choose M here: the
823 module will be called rtc-pl031.
824
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700825config RTC_DRV_AT32AP700X
826 tristate "AT32AP700X series RTC"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700827 depends on PLATFORM_AT32AP
Hans-Christian Egtvedtfa04e782007-07-17 04:05:00 -0700828 help
829 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
830 AT32AP700x family processors.
831
Andrew Victor7fc39f62006-12-10 02:19:03 -0800832config RTC_DRV_AT91RM9200
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200833 tristate "AT91RM9200 or some AT91SAM9 RTC"
834 depends on ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
Andrew Victor788b1fc2006-06-25 05:48:27 -0700835 help
David Brownell4cdf8542008-02-06 01:38:59 -0800836 Driver for the internal RTC (Realtime Clock) module found on
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200837 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
David Brownell4cdf8542008-02-06 01:38:59 -0800838 this is powered by the backup power supply.
839
840config RTC_DRV_AT91SAM9
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200841 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
David Brownell4cdf8542008-02-06 01:38:59 -0800842 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
843 help
Stelian Pop6b71dbf2008-04-05 21:16:15 +0100844 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
845 (Real Time Timer). These timers are powered by the backup power
846 supply (such as a small coin cell battery), but do not need to
847 be used as RTCs.
David Brownell4cdf8542008-02-06 01:38:59 -0800848
Nicolas Ferre24cecc12010-10-22 19:12:52 +0200849 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
850 dedicated RTC module and leave the RTT available for other uses.)
David Brownell4cdf8542008-02-06 01:38:59 -0800851
852config RTC_DRV_AT91SAM9_RTT
853 int
854 range 0 1
855 default 0
856 prompt "RTT module Number" if ARCH_AT91SAM9263
857 depends on RTC_DRV_AT91SAM9
858 help
Alessandro Zummoae64d162009-01-06 14:42:17 -0800859 More than one RTT module is available. You can choose which
860 one will be used as an RTC. The default of zero is normally
David Brownell4cdf8542008-02-06 01:38:59 -0800861 OK to use, though some systems use that for non-RTC purposes.
862
863config RTC_DRV_AT91SAM9_GPBR
864 int
865 range 0 3 if !ARCH_AT91SAM9263
866 range 0 15 if ARCH_AT91SAM9263
867 default 0
868 prompt "Backup Register Number"
869 depends on RTC_DRV_AT91SAM9
870 help
871 The RTC driver needs to use one of the General Purpose Backup
Alessandro Zummoae64d162009-01-06 14:42:17 -0800872 Registers (GPBRs) as well as the RTT. You can choose which one
873 will be used. The default of zero is normally OK to use, but
David Brownell4cdf8542008-02-06 01:38:59 -0800874 on some systems other software needs to use that register.
Andrew Victor788b1fc2006-06-25 05:48:27 -0700875
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800876config RTC_DRV_AU1XXX
877 tristate "Au1xxx Counter0 RTC support"
Manuel Lauss42a4f172010-07-15 21:45:04 +0200878 depends on MIPS_ALCHEMY
Manuel Lauss45fd8a02009-01-06 14:42:18 -0800879 help
880 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
881 counter) to be used as a RTC.
882
883 This driver can also be built as a module. If so, the module
884 will be called rtc-au1xxx.
885
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700886config RTC_DRV_BFIN
887 tristate "Blackfin On-Chip RTC"
Graf Yang7f604592008-08-20 14:09:02 -0700888 depends on BLACKFIN && !BF561
Wu, Bryan8cc75c92007-05-06 14:50:32 -0700889 help
890 If you say yes here you will get support for the
891 Blackfin On-Chip Real Time Clock.
892
893 This driver can also be built as a module. If so, the module
894 will be called rtc-bfin.
895
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700896config RTC_DRV_RS5C313
897 tristate "Ricoh RS5C313"
Jan Engelhardtbb35fb22007-07-31 00:39:46 -0700898 depends on SH_LANDISK
Nobuhiro Iwamatsue9f2bd82007-05-08 00:26:37 -0700899 help
900 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
901
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100902config RTC_DRV_GENERIC
903 tristate "Generic RTC support"
904 # Please consider writing a new RTC driver instead of using the generic
905 # RTC abstraction
Paul Mundt47c8a082009-04-27 17:34:39 +0900906 depends on PARISC || M68K || PPC || SUPERH32
Kyle McMartin9eb16862008-09-10 14:24:07 +0000907 help
Geert Uytterhoeven3afe6d02009-02-19 16:46:49 +0100908 Say Y or M here to enable RTC support on systems using the generic
909 RTC abstraction. If you do not know what you are doing, you should
Kyle McMartin9eb16862008-09-10 14:24:07 +0000910 just say Y.
911
Robert Jarzmikdc944362009-01-06 14:42:14 -0800912config RTC_DRV_PXA
913 tristate "PXA27x/PXA3xx"
914 depends on ARCH_PXA
915 help
916 If you say Y here you will get access to the real time clock
917 built into your PXA27x or PXA3xx CPU.
918
919 This RTC driver uses PXA RTC registers available since pxa27x
920 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
921
Alexey Charkovf77fbdf2011-05-26 16:25:03 -0700922config RTC_DRV_VT8500
923 tristate "VIA/WonderMedia 85xx SoC RTC"
924 depends on ARCH_VT8500
925 help
926 If you say Y here you will get access to the real time clock
927 built into your VIA VT8500 SoC or its relatives.
928
Robert Jarzmikdc944362009-01-06 14:42:14 -0800929
David S. Miller7a138ed2008-08-29 01:32:43 -0700930config RTC_DRV_SUN4V
931 bool "SUN4V Hypervisor RTC"
932 depends on SPARC64
933 help
934 If you say Y here you will get support for the Hypervisor
935 based RTC on SUN4V systems.
936
David S. Millerde2cf332008-08-28 23:02:36 -0700937config RTC_DRV_STARFIRE
938 bool "Starfire RTC"
939 depends on SPARC64
940 help
941 If you say Y here you will get support for the RTC found on
942 Starfire systems.
943
Atsushi Nemoto0e149232009-01-06 14:42:22 -0800944config RTC_DRV_TX4939
945 tristate "TX4939 SoC"
946 depends on SOC_TX4939
947 help
948 Driver for the internal RTC (Realtime Clock) module found on
949 Toshiba TX4939 SoC.
950
Saeed Bisharadefb4512009-01-06 14:42:24 -0800951config RTC_DRV_MV
952 tristate "Marvell SoC RTC"
Saeed Bisharada432432009-11-24 19:33:53 +0200953 depends on ARCH_KIRKWOOD || ARCH_DOVE
Saeed Bisharadefb4512009-01-06 14:42:24 -0800954 help
955 If you say yes here you will get support for the in-chip RTC
956 that can be found in some of Marvell's SoC devices, such as
957 the Kirkwood 88F6281 and 88F6192.
958
959 This driver can also be built as a module. If so, the module
960 will be called rtc-mv.
961
Geert Uytterhoeven0b5f0372009-02-24 14:04:20 +0100962config RTC_DRV_PS3
963 tristate "PS3 RTC"
964 depends on PPC_PS3
965 help
966 If you say yes here you will get support for the RTC on PS3.
967
968 This driver can also be built as a module. If so, the module
969 will be called rtc-ps3.
970
Linus Walleijaa958f52009-09-22 16:46:24 -0700971config RTC_DRV_COH901331
972 tristate "ST-Ericsson COH 901 331 RTC"
973 depends on ARCH_U300
974 help
975 If you say Y here you will get access to ST-Ericsson
976 COH 901 331 RTC clock found in some ST-Ericsson Mobile
977 Platforms.
978
979 This driver can also be built as a module. If so, the module
980 will be called "rtc-coh901331".
981
982
dmitry pervushindf17f632009-09-22 16:46:26 -0700983config RTC_DRV_STMP
Wolfram Sang46b21212011-05-25 12:56:50 +0200984 tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
985 depends on ARCH_MXS
dmitry pervushindf17f632009-09-22 16:46:26 -0700986 help
987 If you say yes here you will get support for the onboard
Wolfram Sang46b21212011-05-25 12:56:50 +0200988 STMP3xxx/i.MX23/i.MX28 RTC.
dmitry pervushindf17f632009-09-22 16:46:26 -0700989
990 This driver can also be built as a module. If so, the module
991 will be called rtc-stmp3xxx.
992
Daniel Ribeirod3c7a3f2009-09-22 16:46:27 -0700993config RTC_DRV_PCAP
994 tristate "PCAP RTC"
995 depends on EZX_PCAP
996 help
997 If you say Y here you will get support for the RTC found on
998 the PCAP2 ASIC used on some Motorola phones.
999
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001000config RTC_DRV_MC13XXX
1001 depends on MFD_MC13XXX
1002 tristate "Freescale MC13xxx RTC"
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001003 help
Uwe Kleine-König1c978722010-10-28 12:30:53 +02001004 This enables support for the RTCs found on Freescale's PMICs
1005 MC13783 and MC13892.
Uwe Kleine-König43299f2852009-12-15 16:46:09 -08001006
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001007config RTC_DRV_MPC5121
1008 tristate "Freescale MPC5121 built-in RTC"
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001009 depends on PPC_MPC512x || PPC_MPC52xx
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001010 help
1011 If you say yes here you will get support for the
Dmitry Eremin-Solenikov955dbea2011-07-25 17:13:30 -07001012 built-in RTC on MPC5121 or on MPC5200.
Anatolij Gustschin50aae722010-02-16 10:47:35 -07001013
1014 This driver can also be built as a module. If so, the module
1015 will be called rtc-mpc5121.
1016
Lars-Peter Clausen3bf0eea2010-06-19 18:29:50 +00001017config RTC_DRV_JZ4740
1018 tristate "Ingenic JZ4740 SoC"
1019 depends on RTC_CLASS
1020 depends on MACH_JZ4740
1021 help
1022 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
1023 controller.
1024
1025 This driver can also be buillt as a module. If so, the module
1026 will be called rtc-jz4740.
1027
Kevin Wells9aa449b2010-10-27 15:33:01 -07001028config RTC_DRV_LPC32XX
1029 depends on ARCH_LPC32XX
1030 tristate "NXP LPC32XX RTC"
1031 help
1032 This enables support for the NXP RTC in the LPC32XX
1033
1034 This driver can also be buillt as a module. If so, the module
1035 will be called rtc-lpc32xx.
1036
Anirudh Ghayal9a9a54a2011-07-25 17:13:33 -07001037config RTC_DRV_PM8XXX
1038 tristate "Qualcomm PMIC8XXX RTC"
1039 depends on MFD_PM8XXX
1040 help
1041 If you say yes here you get support for the
1042 Qualcomm PMIC8XXX RTC.
1043
1044 To compile this driver as a module, choose M here: the
1045 module will be called rtc-pm8xxx.
1046
Andrew Chewff859ba2011-03-22 16:34:55 -07001047config RTC_DRV_TEGRA
1048 tristate "NVIDIA Tegra Internal RTC driver"
1049 depends on RTC_CLASS && ARCH_TEGRA
1050 help
1051 If you say yes here you get support for the
1052 Tegra 200 series internal RTC module.
1053
1054 This drive can also be built as a module. If so, the module
1055 will be called rtc-tegra.
1056
Chris Metcalfdd196a22011-05-09 13:28:43 -04001057config RTC_DRV_TILE
1058 tristate "Tilera hypervisor RTC support"
1059 depends on TILE
1060 help
1061 Enable support for the Linux driver side of the Tilera
1062 hypervisor's real-time clock interface.
1063
Guan Xuetao2809e802011-05-26 16:43:27 +08001064config RTC_DRV_PUV3
1065 tristate "PKUnity v3 RTC support"
1066 depends on ARCH_PUV3
1067 help
1068 This enables support for the RTC in the PKUnity-v3 SoCs.
1069
1070 This drive can also be built as a module. If so, the module
1071 will be called rtc-puv3.
1072
Jan Engelhardtbb35fb22007-07-31 00:39:46 -07001073endif # RTC_CLASS