2 # RTC class/drivers configuration
9 tristate "Real Time Clock"
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
16 probably want to enable one or more of the interfaces below.
18 This driver can also be built as a module. If so, the module
19 will be called rtc-core.
24 bool "Set system time from RTC on startup and resume"
25 depends on RTC_CLASS = y
28 If you say yes here, the system time (wall clock) will be set using
29 the value read from a specified RTC device. This is useful to avoid
30 unnecessary fsck runs at boot time, and to network better.
32 config RTC_HCTOSYS_DEVICE
33 string "RTC used to set the system time"
34 depends on RTC_HCTOSYS = y
37 The RTC device that will be used to (re)initialize the system
38 clock, usually rtc0. Initialization is done when the system
39 starts up, and when it resumes from a low power state. This
40 device should record time in UTC, since the kernel won't do
43 The driver for this RTC device must be loaded before late_initcall
44 functions run, so it must usually be statically linked.
46 This clock should be battery-backed, so that it reads the correct
47 time when the system boots from a power-off state. Otherwise, your
48 system will need an external clock source (like an NTP server).
50 If the clock you specify here is not battery backed, it may still
51 be useful to reinitialize system time when resuming from system
52 sleep states. Do not specify an RTC here unless it stays powered
53 during all this system's supported sleep states.
56 bool "RTC debug support"
57 depends on RTC_CLASS = y
59 Say yes here to enable debugging support in the RTC framework
60 and individual RTC drivers.
62 comment "RTC interfaces"
65 boolean "/sys/class/rtc/rtcN (sysfs)"
69 Say yes here if you want to use your RTCs using sysfs interfaces,
70 /sys/class/rtc/rtc0 through /sys/.../rtcN.
75 boolean "/proc/driver/rtc (procfs for rtc0)"
79 Say yes here if you want to use your first RTC through the proc
80 interface, /proc/driver/rtc. Other RTCs will not be available
86 boolean "/dev/rtcN (character devices)"
89 Say yes here if you want to use your RTCs using the /dev
90 interfaces, which "udev" sets up as /dev/rtc0 through
93 You may want to set up a symbolic link so one of these
94 can be accessed as /dev/rtc, which is a name
95 expected by "hwclock" and some other programs. Recent
96 versions of "udev" are known to set up the symlink for you.
100 config RTC_INTF_DEV_UIE_EMUL
101 bool "RTC UIE emulation on dev interface"
102 depends on RTC_INTF_DEV
104 Provides an emulation for RTC_UIE if the underlying rtc chip
105 driver does not expose RTC_UIE ioctls. Those requests generate
106 once-per-second update interrupts, used for synchronization.
108 The emulation code will read the time from the hardware
109 clock several times per second, please enable this option
110 only if you know that you really need it.
113 tristate "Test driver/device"
115 If you say yes here you get support for the
116 RTC test driver. It's a software RTC which can be
117 used to test the RTC subsystem APIs. It gets
118 the time from the system clock.
119 You want this driver only if you are doing development
120 on the RTC subsystem. Please read the source code
123 This driver can also be built as a module. If so, the module
124 will be called rtc-test.
126 comment "I2C RTC drivers"
131 config RTC_DRV_DS1307
132 tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
134 If you say yes here you get support for various compatible RTC
135 chips (often with battery backup) connected with I2C. This driver
136 should handle DS1307, DS1337, DS1338, DS1339, DS1340, ST M41T00,
137 EPSON RX-8025 and probably other chips. In some cases the RTC
138 must already have been initialized (by manufacturing or a
141 The first seven registers on these chips hold an RTC, and other
142 registers may add features such as NVRAM, a trickle charger for
143 the RTC/NVRAM backup power, and alarms. NVRAM is visible in
144 sysfs, but other chip features may not be available.
146 This driver can also be built as a module. If so, the module
147 will be called rtc-ds1307.
149 config RTC_DRV_DS1374
150 tristate "Dallas/Maxim DS1374"
151 depends on RTC_CLASS && I2C
153 If you say yes here you get support for Dallas Semiconductor
154 DS1374 real-time clock chips. If an interrupt is associated
155 with the device, the alarm functionality is supported.
157 This driver can also be built as a module. If so, the module
158 will be called rtc-ds1374.
160 config RTC_DRV_DS1672
161 tristate "Dallas/Maxim DS1672"
163 If you say yes here you get support for the
164 Dallas/Maxim DS1672 timekeeping chip.
166 This driver can also be built as a module. If so, the module
167 will be called rtc-ds1672.
169 config RTC_DRV_DS3232
170 tristate "Dallas/Maxim DS3232"
171 depends on RTC_CLASS && I2C
173 If you say yes here you get support for Dallas Semiconductor
174 DS3232 real-time clock chips. If an interrupt is associated
175 with the device, the alarm functionality is supported.
177 This driver can also be built as a module. If so, the module
178 will be called rtc-ds3232.
180 config RTC_DRV_MAX6900
181 tristate "Maxim MAX6900"
183 If you say yes here you will get support for the
184 Maxim MAX6900 I2C RTC chip.
186 This driver can also be built as a module. If so, the module
187 will be called rtc-max6900.
189 config RTC_DRV_MAX8925
190 tristate "Maxim MAX8925"
191 depends on MFD_MAX8925
193 If you say yes here you will get support for the
194 RTC of Maxim MAX8925 PMIC.
196 This driver can also be built as a module. If so, the module
197 will be called rtc-max8925.
199 config RTC_DRV_MAX8998
200 tristate "Maxim MAX8998"
201 depends on MFD_MAX8998
203 If you say yes here you will get support for the
204 RTC of Maxim MAX8998 PMIC.
206 This driver can also be built as a module. If so, the module
207 will be called rtc-max8998.
209 config RTC_DRV_RS5C372
210 tristate "Ricoh R2025S/D, RS5C372A/B, RV5C386, RV5C387A"
212 If you say yes here you get support for the
213 Ricoh R2025S/D, RS5C372A, RS5C372B, RV5C386, and RV5C387A RTC chips.
215 This driver can also be built as a module. If so, the module
216 will be called rtc-rs5c372.
218 config RTC_DRV_ISL1208
219 tristate "Intersil ISL1208"
221 If you say yes here you get support for the
222 Intersil ISL1208 RTC chip.
224 This driver can also be built as a module. If so, the module
225 will be called rtc-isl1208.
227 config RTC_DRV_ISL12022
228 tristate "Intersil ISL12022"
230 If you say yes here you get support for the
231 Intersil ISL12022 RTC chip.
233 This driver can also be built as a module. If so, the module
234 will be called rtc-isl12022.
237 tristate "Xicor/Intersil X1205"
239 If you say yes here you get support for the
240 Xicor/Intersil X1205 RTC chip.
242 This driver can also be built as a module. If so, the module
243 will be called rtc-x1205.
245 config RTC_DRV_PCF8563
246 tristate "Philips PCF8563/Epson RTC8564"
248 If you say yes here you get support for the
249 Philips PCF8563 RTC chip. The Epson RTC8564
252 This driver can also be built as a module. If so, the module
253 will be called rtc-pcf8563.
255 config RTC_DRV_PCF8583
256 tristate "Philips PCF8583"
258 If you say yes here you get support for the Philips PCF8583
259 RTC chip found on Acorn RiscPCs. This driver supports the
260 platform specific method of retrieving the current year from
261 the RTC's SRAM. It will work on other platforms with the same
262 chip, but the year will probably have to be tweaked.
264 This driver can also be built as a module. If so, the module
265 will be called rtc-pcf8583.
267 config RTC_DRV_M41T80
268 tristate "ST M41T62/65/M41T80/81/82/83/84/85/87"
270 If you say Y here you will get support for the ST M41T60
271 and M41T80 RTC chips series. Currently, the following chips are
272 supported: M41T62, M41T65, M41T80, M41T81, M41T82, M41T83, M41ST84,
273 M41ST85, and M41ST87.
275 This driver can also be built as a module. If so, the module
276 will be called rtc-m41t80.
278 config RTC_DRV_M41T80_WDT
279 bool "ST M41T65/M41T80 series RTC watchdog timer"
280 depends on RTC_DRV_M41T80
282 If you say Y here you will get support for the
283 watchdog timer in the ST M41T60 and M41T80 RTC chips series.
286 tristate "TI BQ32000"
288 If you say Y here you will get support for the TI
289 BQ32000 I2C RTC chip.
291 This driver can also be built as a module. If so, the module
292 will be called rtc-bq32k.
294 config RTC_DRV_DM355EVM
295 tristate "TI DaVinci DM355 EVM RTC"
296 depends on MFD_DM355EVM_MSP
298 Supports the RTC firmware in the MSP430 on the DM355 EVM.
300 config RTC_DRV_TWL92330
301 boolean "TI TWL92330/Menelaus"
304 If you say yes here you get support for the RTC on the
305 TWL92330 "Menelaus" power management chip, used with OMAP2
306 platforms. The support is integrated with the rest of
307 the Menelaus driver; it's not separate module.
309 config RTC_DRV_TWL4030
310 tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
311 depends on RTC_CLASS && TWL4030_CORE
313 If you say yes here you get support for the RTC on the
314 TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
316 This driver can also be built as a module. If so, the module
317 will be called rtc-twl.
319 config RTC_DRV_S35390A
320 tristate "Seiko Instruments S-35390A"
323 If you say yes here you will get support for the Seiko
324 Instruments S-35390A.
326 This driver can also be built as a module. If so the module
327 will be called rtc-s35390a.
329 config RTC_DRV_FM3130
330 tristate "Ramtron FM3130"
332 If you say Y here you will get support for the
333 Ramtron FM3130 RTC chips.
334 Ramtron FM3130 is a chip with two separate devices inside,
335 RTC clock and FRAM. This driver provides only RTC functionality.
337 This driver can also be built as a module. If so the module
338 will be called rtc-fm3130.
340 config RTC_DRV_RX8581
341 tristate "Epson RX-8581"
343 If you say yes here you will get support for the Epson RX-8581.
345 This driver can also be built as a module. If so the module
346 will be called rtc-rx8581.
348 config RTC_DRV_RX8025
349 tristate "Epson RX-8025SA/NB"
351 If you say yes here you get support for the Epson
352 RX-8025SA/NB RTC chips.
354 This driver can also be built as a module. If so, the module
355 will be called rtc-rx8025.
359 comment "SPI RTC drivers"
363 config RTC_DRV_M41T94
366 If you say yes here you will get support for the
367 ST M41T94 SPI RTC chip.
369 This driver can also be built as a module. If so, the module
370 will be called rtc-m41t94.
372 config RTC_DRV_DS1305
373 tristate "Dallas/Maxim DS1305/DS1306"
375 Select this driver to get support for the Dallas/Maxim DS1305
376 and DS1306 real time clock chips. These support a trickle
377 charger, alarms, and NVRAM in addition to the clock.
379 This driver can also be built as a module. If so, the module
380 will be called rtc-ds1305.
382 config RTC_DRV_DS1390
383 tristate "Dallas/Maxim DS1390/93/94"
385 If you say yes here you get support for the
386 Dallas/Maxim DS1390/93/94 chips.
388 This driver only supports the RTC feature, and not other chip
389 features such as alarms and trickle charging.
391 This driver can also be built as a module. If so, the module
392 will be called rtc-ds1390.
394 config RTC_DRV_MAX6902
395 tristate "Maxim MAX6902"
397 If you say yes here you will get support for the
398 Maxim MAX6902 SPI RTC chip.
400 This driver can also be built as a module. If so, the module
401 will be called rtc-max6902.
404 tristate "Epson RTC-9701JE"
406 If you say yes here you will get support for the
407 Epson RTC-9701JE SPI RTC chip.
409 This driver can also be built as a module. If so, the module
410 will be called rtc-r9701.
412 config RTC_DRV_RS5C348
413 tristate "Ricoh RS5C348A/B"
415 If you say yes here you get support for the
416 Ricoh RS5C348A and RS5C348B RTC chips.
418 This driver can also be built as a module. If so, the module
419 will be called rtc-rs5c348.
421 config RTC_DRV_DS3234
422 tristate "Maxim/Dallas DS3234"
424 If you say yes here you get support for the
425 Maxim/Dallas DS3234 SPI RTC chip.
427 This driver can also be built as a module. If so, the module
428 will be called rtc-ds3234.
430 config RTC_DRV_PCF2123
431 tristate "NXP PCF2123"
433 If you say yes here you get support for the NXP PCF2123
436 This driver can also be built as a module. If so, the module
437 will be called rtc-pcf2123.
441 comment "Platform RTC drivers"
443 # this 'CMOS' RTC driver is arch dependent because <asm-generic/rtc.h>
444 # requires <asm/mc146818rtc.h> defining CMOS_READ/CMOS_WRITE, and a
445 # global rtc_lock ... it's not yet just another platform_device.
448 tristate "PC-style 'CMOS'"
449 depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
452 Say "yes" here to get direct support for the real time clock
453 found in every PC or ACPI-based system, and some other boards.
454 Specifically the original MC146818, compatibles like those in
455 PC south bridges, the DS12887 or M48T86, some multifunction
456 or LPC bus chips, and so on.
458 Your system will need to define the platform device used by
459 this driver, otherwise it won't be accessible. This means
460 you can safely enable this driver if you don't know whether
461 or not your board has this kind of hardware.
463 This driver can also be built as a module. If so, the module
464 will be called rtc-cmos.
466 config RTC_DRV_DS1216
467 tristate "Dallas DS1216"
470 If you say yes here you get support for the Dallas DS1216 RTC chips.
472 config RTC_DRV_DS1286
473 tristate "Dallas DS1286"
475 If you say yes here you get support for the Dallas DS1286 RTC chips.
477 config RTC_DRV_DS1302
478 tristate "Dallas DS1302"
479 depends on SH_SECUREEDGE5410
481 If you say yes here you get support for the Dallas DS1302 RTC chips.
483 config RTC_DRV_DS1511
484 tristate "Dallas DS1511"
487 If you say yes here you get support for the
488 Dallas DS1511 timekeeping/watchdog chip.
490 This driver can also be built as a module. If so, the module
491 will be called rtc-ds1511.
493 config RTC_DRV_DS1553
494 tristate "Maxim/Dallas DS1553"
496 If you say yes here you get support for the
497 Maxim/Dallas DS1553 timekeeping chip.
499 This driver can also be built as a module. If so, the module
500 will be called rtc-ds1553.
502 config RTC_DRV_DS1742
503 tristate "Maxim/Dallas DS1742/1743"
505 If you say yes here you get support for the
506 Maxim/Dallas DS1742/1743 timekeeping chip.
508 This driver can also be built as a module. If so, the module
509 will be called rtc-ds1742.
515 If you say yes here you will get support for the EFI
518 This driver can also be built as a module. If so, the module
519 will be called rtc-efi.
521 config RTC_DRV_STK17TA8
522 tristate "Simtek STK17TA8"
525 If you say yes here you get support for the
526 Simtek STK17TA8 timekeeping chip.
528 This driver can also be built as a module. If so, the module
529 will be called rtc-stk17ta8.
531 config RTC_DRV_M48T86
532 tristate "ST M48T86/Dallas DS12887"
534 If you say Y here you will get support for the
535 ST M48T86 and Dallas DS12887 RTC chips.
537 This driver can also be built as a module. If so, the module
538 will be called rtc-m48t86.
540 config RTC_DRV_M48T35
543 If you say Y here you will get support for the
546 This driver can also be built as a module, if so, the module
547 will be called "rtc-m48t35".
549 config RTC_DRV_M48T59
550 tristate "ST M48T59/M48T08/M48T02"
552 If you say Y here you will get support for the
553 ST M48T59 RTC chip and compatible ST M48T08 and M48T02.
555 These chips are usually found in Sun SPARC and UltraSPARC
558 This driver can also be built as a module, if so, the module
559 will be called "rtc-m48t59".
561 config RTC_DRV_MSM6242
562 tristate "Oki MSM6242"
564 If you say yes here you get support for the Oki MSM6242
565 timekeeping chip. It is used in some Amiga models (e.g. A2000).
567 This driver can also be built as a module. If so, the module
568 will be called rtc-msm6242.
571 tristate "Freescale IMX DryIce Real Time Clock"
575 Support for Freescale IMX DryIce RTC
577 This driver can also be built as a module, if so, the module
578 will be called "rtc-imxdi".
581 tristate "Freescale MXC Real Time Clock"
585 If you say yes here you get support for the Freescale MXC
588 This driver can also be built as a module, if so, the module
589 will be called "rtc-mxc".
591 config RTC_DRV_BQ4802
594 If you say Y here you will get support for the TI
597 This driver can also be built as a module. If so, the module
598 will be called rtc-bq4802.
600 config RTC_DRV_RP5C01
601 tristate "Ricoh RP5C01"
603 If you say yes here you get support for the Ricoh RP5C01
604 timekeeping chip. It is used in some Amiga models (e.g. A3000
607 This driver can also be built as a module. If so, the module
608 will be called rtc-rp5c01.
611 tristate "EM Microelectronic V3020"
613 If you say yes here you will get support for the
614 EM Microelectronic v3020 RTC chip.
616 This driver can also be built as a module. If so, the module
617 will be called rtc-v3020.
619 config RTC_DRV_WM831X
620 tristate "Wolfson Microelectronics WM831x RTC"
621 depends on MFD_WM831X
623 If you say yes here you will get support for the RTC subsystem
624 of the Wolfson Microelectronics WM831X series PMICs.
626 This driver can also be built as a module. If so, the module
627 will be called "rtc-wm831x".
629 config RTC_DRV_WM8350
630 tristate "Wolfson Microelectronics WM8350 RTC"
631 depends on MFD_WM8350
633 If you say yes here you will get support for the RTC subsystem
634 of the Wolfson Microelectronics WM8350.
636 This driver can also be built as a module. If so, the module
637 will be called "rtc-wm8350".
639 config RTC_DRV_PCF50633
640 depends on MFD_PCF50633
641 tristate "NXP PCF50633 RTC"
643 If you say yes here you get support for the RTC subsystem of the
644 NXP PCF50633 used in embedded systems.
646 config RTC_DRV_AB3100
647 tristate "ST-Ericsson AB3100 RTC"
648 depends on AB3100_CORE
649 default y if AB3100_CORE
651 Select this to enable the ST-Ericsson AB3100 Mixed Signal IC RTC
652 support. This chip contains a battery- and capacitor-backed RTC.
654 config RTC_DRV_AB8500
655 tristate "ST-Ericsson AB8500 RTC"
656 depends on AB8500_CORE
658 Select this to enable the ST-Ericsson AB8500 power management IC RTC
659 support. This chip contains a battery- and capacitor-backed RTC.
661 config RTC_DRV_NUC900
662 tristate "NUC910/NUC920 RTC driver"
663 depends on RTC_CLASS && ARCH_W90X900
665 If you say yes here you get support for the RTC subsystem of the
666 NUC910/NUC920 used in embedded systems.
668 comment "on-CPU RTC drivers"
670 config RTC_DRV_DAVINCI
671 tristate "TI DaVinci RTC"
672 depends on ARCH_DAVINCI_DM365
674 If you say yes here you get support for the RTC on the
675 DaVinci platforms (DM365).
677 This driver can also be built as a module. If so, the module
678 will be called rtc-davinci.
682 depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX
684 Say "yes" here to support the real time clock on TI OMAP1 and
685 DA8xx/OMAP-L13x chips. This driver can also be built as a
686 module called rtc-omap.
691 This will include RTC support for Samsung SoCs. If
692 you want to include RTC support for any machine, kindly
693 select this in the respective mach-XXXX/Kconfig file.
696 tristate "Samsung S3C series SoC RTC"
697 depends on ARCH_S3C2410 || ARCH_S3C64XX || HAVE_S3C_RTC
699 RTC (Realtime Clock) driver for the clock inbuilt into the
700 Samsung S3C24XX series of SoCs. This can provide periodic
701 interrupt rates from 1Hz to 64Hz for user programs, and
704 The driver currently supports the common features on all the
705 S3C24XX range, such as the S3C2410, S3C2412, S3C2413, S3C2440
708 This driver can also be build as a module. If so, the module
709 will be called rtc-s3c.
711 config RTC_DRV_EP93XX
712 tristate "Cirrus Logic EP93XX"
713 depends on ARCH_EP93XX
715 If you say yes here you get support for the
716 RTC embedded in the Cirrus Logic EP93XX processors.
718 This driver can also be built as a module. If so, the module
719 will be called rtc-ep93xx.
721 config RTC_DRV_SA1100
722 tristate "SA11x0/PXA2xx"
723 depends on ARCH_SA1100 || ARCH_PXA
725 If you say Y here you will get access to the real time clock
726 built into your SA11x0 or PXA2xx CPU.
728 To compile this driver as a module, choose M here: the
729 module will be called rtc-sa1100.
732 tristate "SuperH On-Chip RTC"
733 depends on RTC_CLASS && SUPERH && HAVE_CLK
735 Say Y here to enable support for the on-chip RTC found in
736 most SuperH processors.
738 To compile this driver as a module, choose M here: the
739 module will be called rtc-sh.
741 config RTC_DRV_VR41XX
742 tristate "NEC VR41XX"
743 depends on CPU_VR41XX
745 If you say Y here you will get access to the real time clock
746 built into your NEC VR41XX CPU.
748 To compile this driver as a module, choose M here: the
749 module will be called rtc-vr41xx.
752 tristate "ARM AMBA PL030 RTC"
755 If you say Y here you will get access to ARM AMBA
756 PrimeCell PL030 RTC found on certain ARM SOCs.
758 To compile this driver as a module, choose M here: the
759 module will be called rtc-pl030.
762 tristate "ARM AMBA PL031 RTC"
765 If you say Y here you will get access to ARM AMBA
766 PrimeCell PL031 RTC found on certain ARM SOCs.
768 To compile this driver as a module, choose M here: the
769 module will be called rtc-pl031.
771 config RTC_DRV_AT32AP700X
772 tristate "AT32AP700X series RTC"
773 depends on PLATFORM_AT32AP
775 Driver for the internal RTC (Realtime Clock) on Atmel AVR32
776 AT32AP700x family processors.
778 config RTC_DRV_AT91RM9200
779 tristate "AT91RM9200 or some AT91SAM9 RTC"
780 depends on ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45
782 Driver for the internal RTC (Realtime Clock) module found on
783 Atmel AT91RM9200's and some AT91SAM9 chips. On AT91SAM9 chips
784 this is powered by the backup power supply.
786 config RTC_DRV_AT91SAM9
787 tristate "AT91SAM9x/AT91CAP9 RTT as RTC"
788 depends on ARCH_AT91 && !(ARCH_AT91RM9200 || ARCH_AT91X40)
790 RTC driver for the Atmel AT91SAM9x and AT91CAP9 internal RTT
791 (Real Time Timer). These timers are powered by the backup power
792 supply (such as a small coin cell battery), but do not need to
795 (On AT91SAM9rl and AT91SAM9G45 chips you probably want to use the
796 dedicated RTC module and leave the RTT available for other uses.)
798 config RTC_DRV_AT91SAM9_RTT
802 prompt "RTT module Number" if ARCH_AT91SAM9263
803 depends on RTC_DRV_AT91SAM9
805 More than one RTT module is available. You can choose which
806 one will be used as an RTC. The default of zero is normally
807 OK to use, though some systems use that for non-RTC purposes.
809 config RTC_DRV_AT91SAM9_GPBR
811 range 0 3 if !ARCH_AT91SAM9263
812 range 0 15 if ARCH_AT91SAM9263
814 prompt "Backup Register Number"
815 depends on RTC_DRV_AT91SAM9
817 The RTC driver needs to use one of the General Purpose Backup
818 Registers (GPBRs) as well as the RTT. You can choose which one
819 will be used. The default of zero is normally OK to use, but
820 on some systems other software needs to use that register.
822 config RTC_DRV_AU1XXX
823 tristate "Au1xxx Counter0 RTC support"
824 depends on MIPS_ALCHEMY
826 This is a driver for the Au1xxx on-chip Counter0 (Time-Of-Year
827 counter) to be used as a RTC.
829 This driver can also be built as a module. If so, the module
830 will be called rtc-au1xxx.
833 tristate "Blackfin On-Chip RTC"
834 depends on BLACKFIN && !BF561
836 If you say yes here you will get support for the
837 Blackfin On-Chip Real Time Clock.
839 This driver can also be built as a module. If so, the module
840 will be called rtc-bfin.
842 config RTC_DRV_RS5C313
843 tristate "Ricoh RS5C313"
844 depends on SH_LANDISK
846 If you say yes here you get support for the Ricoh RS5C313 RTC chips.
848 config RTC_DRV_GENERIC
849 tristate "Generic RTC support"
850 # Please consider writing a new RTC driver instead of using the generic
852 depends on PARISC || M68K || PPC || SUPERH32
854 Say Y or M here to enable RTC support on systems using the generic
855 RTC abstraction. If you do not know what you are doing, you should
859 tristate "PXA27x/PXA3xx"
862 If you say Y here you will get access to the real time clock
863 built into your PXA27x or PXA3xx CPU.
865 This RTC driver uses PXA RTC registers available since pxa27x
866 series (RDxR, RYxR) instead of legacy RCNR, RTAR.
870 bool "SUN4V Hypervisor RTC"
873 If you say Y here you will get support for the Hypervisor
874 based RTC on SUN4V systems.
876 config RTC_DRV_STARFIRE
880 If you say Y here you will get support for the RTC found on
883 config RTC_DRV_TX4939
884 tristate "TX4939 SoC"
885 depends on SOC_TX4939
887 Driver for the internal RTC (Realtime Clock) module found on
891 tristate "Marvell SoC RTC"
892 depends on ARCH_KIRKWOOD || ARCH_DOVE
894 If you say yes here you will get support for the in-chip RTC
895 that can be found in some of Marvell's SoC devices, such as
896 the Kirkwood 88F6281 and 88F6192.
898 This driver can also be built as a module. If so, the module
899 will be called rtc-mv.
905 If you say yes here you will get support for the RTC on PS3.
907 This driver can also be built as a module. If so, the module
908 will be called rtc-ps3.
910 config RTC_DRV_COH901331
911 tristate "ST-Ericsson COH 901 331 RTC"
914 If you say Y here you will get access to ST-Ericsson
915 COH 901 331 RTC clock found in some ST-Ericsson Mobile
918 This driver can also be built as a module. If so, the module
919 will be called "rtc-coh901331".
923 tristate "Freescale STMP3xxx RTC"
924 depends on ARCH_STMP3XXX
926 If you say yes here you will get support for the onboard
929 This driver can also be built as a module. If so, the module
930 will be called rtc-stmp3xxx.
936 If you say Y here you will get support for the RTC found on
937 the PCAP2 ASIC used on some Motorola phones.
939 config RTC_DRV_MC13XXX
940 depends on MFD_MC13XXX
941 tristate "Freescale MC13xxx RTC"
943 This enables support for the RTCs found on Freescale's PMICs
946 config RTC_DRV_MPC5121
947 tristate "Freescale MPC5121 built-in RTC"
948 depends on PPC_MPC512x && RTC_CLASS
950 If you say yes here you will get support for the
951 built-in RTC MPC5121.
953 This driver can also be built as a module. If so, the module
954 will be called rtc-mpc5121.
956 config RTC_DRV_JZ4740
957 tristate "Ingenic JZ4740 SoC"
959 depends on MACH_JZ4740
961 If you say yes here you get support for the Ingenic JZ4740 SoC RTC
964 This driver can also be buillt as a module. If so, the module
965 will be called rtc-jz4740.
967 config RTC_DRV_LPC32XX
968 depends on ARCH_LPC32XX
969 tristate "NXP LPC32XX RTC"
971 This enables support for the NXP RTC in the LPC32XX
973 This driver can also be buillt as a module. If so, the module
974 will be called rtc-lpc32xx.