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Alessandro Zummo0c86edc2006-03-27 01:16:37 -08001\#
Alessandro Zummoc58411e2006-03-27 01:16:34 -08002# RTC class/drivers configuration
3#
4
Alessandro Zummo0c86edc2006-03-27 01:16:37 -08005menu "Real Time Clock"
6
Alessandro Zummoc58411e2006-03-27 01:16:34 -08007config RTC_LIB
Alessandro Zummo0c86edc2006-03-27 01:16:37 -08008 tristate
9
10config RTC_CLASS
11 tristate "RTC class"
12 depends on EXPERIMENTAL
13 default n
14 select RTC_LIB
15 help
16 Generic RTC class support. If you say yes here, you will
17 be allowed to plug one or more RTCs to your system. You will
Adrian Bunk27ae4102006-06-30 18:18:41 +020018 probably want to enable one or more of the interfaces below.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080019
20 This driver can also be built as a module. If so, the module
21 will be called rtc-class.
22
23config RTC_HCTOSYS
24 bool "Set system time from RTC on startup"
25 depends on RTC_CLASS = y
26 default y
27 help
28 If you say yes here, the system time will be set using
29 the value read from the specified RTC device. This is useful
Pavel Machekaf3ffa62006-09-29 02:01:14 -070030 in order to avoid unnecessary fsck runs.
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080031
32config RTC_HCTOSYS_DEVICE
33 string "The RTC to read the time from"
34 depends on RTC_HCTOSYS = y
35 default "rtc0"
36 help
37 The RTC device that will be used as the source for
38 the system time, usually rtc0.
39
David Brownell9e86ecb2006-09-30 23:28:14 -070040config RTC_DEBUG
41 bool "RTC debug support"
42 depends on RTC_CLASS = y
43 help
44 Say yes here to enable debugging support in the RTC framework
45 and individual RTC drivers.
46
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080047comment "RTC interfaces"
48 depends on RTC_CLASS
49
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080050config RTC_INTF_SYSFS
51 tristate "sysfs"
52 depends on RTC_CLASS && SYSFS
53 default RTC_CLASS
54 help
David Brownell9e86ecb2006-09-30 23:28:14 -070055 Say yes here if you want to use your RTCs using sysfs interfaces,
56 /sys/class/rtc/rtc0 through /sys/.../rtcN.
Alessandro Zummoc5c3e192006-03-27 01:16:39 -080057
58 This driver can also be built as a module. If so, the module
59 will be called rtc-sysfs.
60
Alessandro Zummo728a2942006-03-27 01:16:40 -080061config RTC_INTF_PROC
62 tristate "proc"
63 depends on RTC_CLASS && PROC_FS
64 default RTC_CLASS
65 help
David Brownell9e86ecb2006-09-30 23:28:14 -070066 Say yes here if you want to use your first RTC through the proc
67 interface, /proc/driver/rtc. Other RTCs will not be available
68 through that API.
Alessandro Zummo728a2942006-03-27 01:16:40 -080069
70 This driver can also be built as a module. If so, the module
71 will be called rtc-proc.
72
Alessandro Zummoe8242902006-03-27 01:16:41 -080073config RTC_INTF_DEV
74 tristate "dev"
75 depends on RTC_CLASS
76 default RTC_CLASS
77 help
David Brownell9e86ecb2006-09-30 23:28:14 -070078 Say yes here if you want to use your RTCs using the /dev
79 interfaces, which "udev" sets up as /dev/rtc0 through
80 /dev/rtcN. You may want to set up a symbolic link so one
81 of these can be accessed as /dev/rtc, which is a name
82 expected by "hwclock" and some other programs.
Alessandro Zummoe8242902006-03-27 01:16:41 -080083
84 This driver can also be built as a module. If so, the module
85 will be called rtc-dev.
86
Atsushi Nemoto655066c2006-06-25 05:48:17 -070087config RTC_INTF_DEV_UIE_EMUL
88 bool "RTC UIE emulation on dev interface"
89 depends on RTC_INTF_DEV
90 help
91 Provides an emulation for RTC_UIE if the underlaying rtc chip
David Brownell9e86ecb2006-09-30 23:28:14 -070092 driver does not expose RTC_UIE ioctls. Those requests generate
93 once-per-second update interrupts, used for synchronization.
Atsushi Nemoto655066c2006-06-25 05:48:17 -070094
Alessandro Zummo0c86edc2006-03-27 01:16:37 -080095comment "RTC drivers"
96 depends on RTC_CLASS
97
Alessandro Zummo1fec7c62006-03-27 01:16:42 -080098config RTC_DRV_X1205
99 tristate "Xicor/Intersil X1205"
100 depends on RTC_CLASS && I2C
101 help
102 If you say yes here you get support for the
103 Xicor/Intersil X1205 RTC chip.
104
105 This driver can also be built as a module. If so, the module
106 will be called rtc-x1205.
107
David Brownell1abb0dc2006-06-25 05:48:17 -0700108config RTC_DRV_DS1307
109 tristate "Dallas/Maxim DS1307 and similar I2C RTC chips"
110 depends on RTC_CLASS && I2C
111 help
112 If you say yes here you get support for various compatible RTC
113 chips (often with battery backup) connected with I2C. This driver
114 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
115 and probably other chips. In some cases the RTC must already
116 have been initialized (by manufacturing or a bootloader).
117
118 The first seven registers on these chips hold an RTC, and other
119 registers may add features such as NVRAM, a trickle charger for
120 the RTC/NVRAM backup power, and alarms. This driver may not
121 expose all those available chip features.
122
123 This driver can also be built as a module. If so, the module
124 will be called rtc-ds1307.
125
Atsushi Nemoto9bf5b4f2006-06-25 05:48:28 -0700126config RTC_DRV_DS1553
127 tristate "Dallas DS1553"
128 depends on RTC_CLASS
129 help
130 If you say yes here you get support for the
131 Dallas DS1553 timekeeping chip.
132
133 This driver can also be built as a module. If so, the module
134 will be called rtc-ds1553.
135
Herbert Valerio Riedel7e56a7d2006-07-14 00:24:11 -0700136config RTC_DRV_ISL1208
137 tristate "Intersil 1208"
138 depends on RTC_CLASS && I2C
139 help
140 If you say yes here you get support for the
141 Intersil 1208 RTC chip.
142
143 This driver can also be built as a module. If so, the module
144 will be called rtc-isl1208.
145
Alessandro Zummoedf1aaa2006-03-27 01:16:43 -0800146config RTC_DRV_DS1672
147 tristate "Dallas/Maxim DS1672"
148 depends on RTC_CLASS && I2C
149 help
150 If you say yes here you get support for the
151 Dallas/Maxim DS1672 timekeeping chip.
152
153 This driver can also be built as a module. If so, the module
154 will be called rtc-ds1672.
155
Atsushi Nemoto5ec3e4b2006-06-25 05:48:29 -0700156config RTC_DRV_DS1742
157 tristate "Dallas DS1742"
158 depends on RTC_CLASS
159 help
160 If you say yes here you get support for the
161 Dallas DS1742 timekeeping chip.
162
163 This driver can also be built as a module. If so, the module
164 will be called rtc-ds1742.
165
David Brownelldb68b182006-12-06 20:38:36 -0800166config RTC_DRV_OMAP
167 tristate "TI OMAP1"
168 depends on RTC_CLASS && ( \
169 ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 )
170 help
171 Say "yes" here to support the real time clock on TI OMAP1 chips.
172 This driver can also be built as a module called rtc-omap.
173
Alessandro Zummob5a82d62006-03-27 01:16:44 -0800174config RTC_DRV_PCF8563
175 tristate "Philips PCF8563/Epson RTC8564"
176 depends on RTC_CLASS && I2C
177 help
178 If you say yes here you get support for the
179 Philips PCF8563 RTC chip. The Epson RTC8564
180 should work as well.
181
182 This driver can also be built as a module. If so, the module
183 will be called rtc-pcf8563.
184
G. Liakhovetski9c0c5702006-06-25 05:48:18 -0700185config RTC_DRV_PCF8583
186 tristate "Philips PCF8583"
187 depends on RTC_CLASS && I2C
188 help
189 If you say yes here you get support for the
190 Philips PCF8583 RTC chip.
191
192 This driver can also be built as a module. If so, the module
193 will be called rtc-pcf8583.
194
Atsushi Nemotoe0ac4762006-06-28 04:26:47 -0700195config RTC_DRV_RS5C348
196 tristate "Ricoh RS5C348A/B"
197 depends on RTC_CLASS && SPI
198 help
199 If you say yes here you get support for the
200 Ricoh RS5C348A and RS5C348B RTC chips.
201
202 This driver can also be built as a module. If so, the module
203 will be called rtc-rs5c348.
204
Alessandro Zummo7520b942006-03-27 01:16:45 -0800205config RTC_DRV_RS5C372
206 tristate "Ricoh RS5C372A/B"
207 depends on RTC_CLASS && I2C
208 help
209 If you say yes here you get support for the
210 Ricoh RS5C372A and RS5C372B RTC chips.
211
212 This driver can also be built as a module. If so, the module
213 will be called rtc-rs5c372.
214
Ben Dooks1add6782006-07-01 04:36:26 -0700215config RTC_DRV_S3C
216 tristate "Samsung S3C series SoC RTC"
217 depends on RTC_CLASS && ARCH_S3C2410
218 help
219 RTC (Realtime Clock) driver for the clock inbuilt into the
220 Samsung S3C24XX series of SoCs. This can provide periodic
221 interrupt rates from 1Hz to 64Hz for user programs, and
222 wakeup from Alarm.
223
224 The driver currently supports the common features on all the
225 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
226 and S3C2442.
227
228 This driver can also be build as a module. If so, the module
229 will be called rtc-s3c.
230
Alessandro Zummo1d98af82006-03-27 01:16:47 -0800231config RTC_DRV_M48T86
232 tristate "ST M48T86/Dallas DS12887"
233 depends on RTC_CLASS
234 help
235 If you say Y here you will get support for the
236 ST M48T86 and Dallas DS12887 RTC chips.
237
238 This driver can also be built as a module. If so, the module
239 will be called rtc-m48t86.
240
Alessandro Zummofd507e22006-03-27 01:16:45 -0800241config RTC_DRV_EP93XX
242 tristate "Cirrus Logic EP93XX"
243 depends on RTC_CLASS && ARCH_EP93XX
244 help
245 If you say yes here you get support for the
246 RTC embedded in the Cirrus Logic EP93XX processors.
247
248 This driver can also be built as a module. If so, the module
249 will be called rtc-ep93xx.
250
Richard Purdiee842f1c2006-03-27 01:16:46 -0800251config RTC_DRV_SA1100
252 tristate "SA11x0/PXA2xx"
253 depends on RTC_CLASS && (ARCH_SA1100 || ARCH_PXA)
254 help
255 If you say Y here you will get access to the real time clock
256 built into your SA11x0 or PXA2xx CPU.
257
258 To compile this driver as a module, choose M here: the
259 module will be called rtc-sa1100.
Alessandro Zummofd507e22006-03-27 01:16:45 -0800260
Paul Mundt317a6102006-09-27 17:13:19 +0900261config RTC_DRV_SH
262 tristate "SuperH On-Chip RTC"
263 depends on RTC_CLASS && SUPERH
264 help
265 Say Y here to enable support for the on-chip RTC found in
266 most SuperH processors.
267
268 To compile this driver as a module, choose M here: the
269 module will be called rtc-sh.
270
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700271config RTC_DRV_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700272 tristate "NEC VR41XX"
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700273 depends on RTC_CLASS && CPU_VR41XX
Alessandro Zummo3e16f6a2006-04-10 22:54:48 -0700274 help
275 If you say Y here you will get access to the real time clock
276 built into your NEC VR41XX CPU.
277
278 To compile this driver as a module, choose M here: the
279 module will be called rtc-vr41xx.
Yoichi Yuasa8417eb72006-04-10 22:54:47 -0700280
Deepak Saxena8ae6e162006-06-25 05:47:38 -0700281config RTC_DRV_PL031
282 tristate "ARM AMBA PL031 RTC"
283 depends on RTC_CLASS && ARM_AMBA
284 help
285 If you say Y here you will get access to ARM AMBA
286 PrimeCell PL031 UART found on certain ARM SOCs.
287
288 To compile this driver as a module, choose M here: the
289 module will be called rtc-pl031.
290
Andrew Victor788b1fc2006-06-25 05:48:27 -0700291config RTC_DRV_AT91
292 tristate "AT91RM9200"
293 depends on RTC_CLASS && ARCH_AT91RM9200
294 help
295 Driver for the Atmel AT91RM9200's internal RTC (Realtime Clock).
296
Alessandro Zummoa95579c2006-03-27 01:16:42 -0800297config RTC_DRV_TEST
298 tristate "Test driver/device"
299 depends on RTC_CLASS
300 help
301 If you say yes here you get support for the
302 RTC test driver. It's a software RTC which can be
303 used to test the RTC subsystem APIs. It gets
304 the time from the system clock.
305 You want this driver only if you are doing development
306 on the RTC subsystem. Please read the source code
307 for further details.
308
309 This driver can also be built as a module. If so, the module
310 will be called rtc-test.
311
Raphael Assenat8e12ecc2006-06-25 05:48:23 -0700312config RTC_DRV_MAX6902
313 tristate "Maxim 6902"
314 depends on RTC_CLASS && SPI
315 help
316 If you say yes here you will get support for the
317 Maxim MAX6902 spi RTC chip.
318
319 This driver can also be built as a module. If so, the module
320 will be called rtc-max6902.
321
Raphael Assenat362600f2006-06-25 05:48:24 -0700322config RTC_DRV_V3020
323 tristate "EM Microelectronic V3020"
324 depends on RTC_CLASS
325 help
326 If you say yes here you will get support for the
327 EM Microelectronic v3020 RTC chip.
328
329 This driver can also be built as a module. If so, the module
330 will be called rtc-v3020.
331
Alessandro Zummo0c86edc2006-03-27 01:16:37 -0800332endmenu