2 # Watchdog device configuration
6 bool "Watchdog Timer Support"
8 If you say Y here (and to one of the following options) and create a
9 character special file /dev/watchdog with major number 10 and minor
10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
11 subsequently opening the file and then failing to write to it for
12 longer than 1 minute will result in rebooting the machine. This
13 could be useful for a networked machine that needs to come back
14 on-line as fast as possible after a lock-up. There's both a watchdog
15 implementation entirely in software (which can sometimes fail to
16 reboot the machine) and a driver for hardware watchdog boards, which
17 are more robust and can also keep track of the temperature inside
18 your computer. For details, read
19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
21 The watchdog is usually used together with the watchdog daemon
22 which is available from
23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
24 also monitor NFS connections and can reboot the machine when the process
31 config WATCHDOG_NOWAYOUT
32 bool "Disable watchdog shutdown on close"
34 The default watchdog behaviour (which you get if you say N here) is
35 to stop the timer if the process managing it closes the file
36 /dev/watchdog. It's always remotely possible that this process might
37 get killed. If you say Y here, the watchdog cannot be stopped once
41 # General Watchdog drivers
44 comment "Watchdog Device Drivers"
46 # Architecture Independent
49 tristate "Software watchdog"
51 A software monitoring watchdog. This will fail to reboot your system
52 from some situations that the hardware watchdog will recover
53 from. Equally it's a lot cheaper to install.
55 To compile this driver as a module, choose M here: the
56 module will be called softdog.
58 config WM831X_WATCHDOG
59 tristate "WM831x watchdog"
62 Support for the watchdog in the WM831x AudioPlus PMICs. When
63 the watchdog triggers the system will be reset.
65 config WM8350_WATCHDOG
66 tristate "WM8350 watchdog"
69 Support for the watchdog in the WM8350 AudioPlus PMIC. When
70 the watchdog triggers the system will be reset.
77 tristate "RK29 watchdog"
80 Watchdog timer embedded into RK29xx chips. This will reboot your
81 system when the timeout is reached.
83 config RK29_FEED_DOG_BY_INTE
84 bool "feed watchdog by interrupt"
85 depends on RK29_WATCHDOG
87 config RK29_WATCHDOG_ATBOOT
88 bool "start watchdog at system boot"
89 depends on RK29_WATCHDOG
91 config RK29_WATCHDOG_DEFAULT_TIME
92 int "set watchdog time out value (unit second)"
93 depends on RK29_WATCHDOG
95 the real time out value is two times more than the setting value
97 config RK29_WATCHDOG_DEBUG
98 bool "enable watchdog debug"
99 depends on RK29_WATCHDOG
101 config ARM_SP805_WATCHDOG
102 tristate "ARM SP805 Watchdog"
105 ARM Primecell SP805 Watchdog timer. This will reboot your system when
106 the timeout is reached.
108 config AT91RM9200_WATCHDOG
109 tristate "AT91RM9200 watchdog"
110 depends on ARCH_AT91RM9200
112 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
113 system when the timeout is reached.
115 config AT91SAM9X_WATCHDOG
116 tristate "AT91SAM9X / AT91CAP9 watchdog"
117 depends on ARCH_AT91 && !ARCH_AT91RM9200
119 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
120 reboot your system when the timeout is reached.
122 config 21285_WATCHDOG
123 tristate "DC21285 watchdog"
124 depends on FOOTBRIDGE
126 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
127 here if you wish to use this. Alternatively say M to compile the
128 driver as a module, which will be called wdt285.
130 This driver does not work on all machines. In particular, early CATS
131 boards have hardware problems that will cause the machine to simply
132 lock up if the watchdog fires.
134 "If in doubt, leave it out" - say N.
137 tristate "NetWinder WB83C977 watchdog"
138 depends on FOOTBRIDGE && ARCH_NETWINDER
140 Say Y here to include support for the WB977 watchdog included in
141 NetWinder machines. Alternatively say M to compile the driver as
142 a module, which will be called wdt977.
144 Not sure? It's safe to say N.
146 config IXP2000_WATCHDOG
147 tristate "IXP2000 Watchdog"
148 depends on ARCH_IXP2000
150 Say Y here if to include support for the watchdog timer
151 in the Intel IXP2000(2400, 2800, 2850) network processors.
152 This driver can be built as a module by choosing M. The module
153 will be called ixp2000_wdt.
155 Say N if you are unsure.
157 config IXP4XX_WATCHDOG
158 tristate "IXP4xx Watchdog"
159 depends on ARCH_IXP4XX
161 Say Y here if to include support for the watchdog timer
162 in the Intel IXP4xx network processors. This driver can
163 be built as a module by choosing M. The module will
164 be called ixp4xx_wdt.
166 Note: The internal IXP4xx watchdog does a soft CPU reset
167 which doesn't reset any peripherals. There are circumstances
168 where the watchdog will fail to reset the board correctly
169 (e.g., if the boot ROM is in an unreadable state).
171 Say N if you are unsure.
173 config KS8695_WATCHDOG
174 tristate "KS8695 watchdog"
175 depends on ARCH_KS8695
177 Watchdog timer embedded into KS8695 processor. This will reboot your
178 system when the timeout is reached.
180 config HAVE_S3C2410_WATCHDOG
183 This will include watchdog timer support for Samsung SoCs. If
184 you want to include watchdog support for any machine, kindly
185 select this in the respective mach-XXXX/Kconfig file.
187 config S3C2410_WATCHDOG
188 tristate "S3C2410 Watchdog"
189 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
191 Watchdog timer block in the Samsung SoCs. This will reboot
192 the system when the timer expires with the watchdog enabled.
194 The driver is limited by the speed of the system's PCLK
195 signal, so with reasonably fast systems (PCLK around 50-66MHz)
196 then watchdog intervals of over approximately 20seconds are
199 The driver can be built as a module by choosing M, and will
200 be called s3c2410_wdt
202 config SA1100_WATCHDOG
203 tristate "SA1100/PXA2xx watchdog"
204 depends on ARCH_SA1100 || ARCH_PXA
206 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
207 reboot your system when timeout is reached.
209 NOTE: once enabled, this timer cannot be disabled.
211 To compile this driver as a module, choose M here: the
212 module will be called sa1100_wdt.
214 config MPCORE_WATCHDOG
215 tristate "MPcore watchdog"
216 depends on HAVE_ARM_TWD
218 Watchdog timer embedded into the MPcore system.
220 To compile this driver as a module, choose M here: the
221 module will be called mpcore_wdt.
223 config TEGRA_WATCHDOG
224 tristate "Tegra watchdog"
225 depends on ARCH_TEGRA
227 Say Y here to include support for the watchdog timer
228 embedded in NVIDIA Tegra SoCs.
230 To compile this driver as a module, choose M here: the
231 module will be called tegra_wdt.
233 config TEGRA_WATCHDOG_ENABLE_ON_PROBE
234 tristate "Tegra watchdog"
235 depends on ARCH_TEGRA && TEGRA_WATCHDOG
237 Say Y here to enable the tegra watchdog at driver
238 probe time, rather than when the device is opened.
240 config EP93XX_WATCHDOG
241 tristate "EP93xx Watchdog"
242 depends on ARCH_EP93XX
244 Say Y here if to include support for the watchdog timer
245 embedded in the Cirrus Logic EP93xx family of devices.
247 To compile this driver as a module, choose M here: the
248 module will be called ep93xx_wdt.
251 tristate "OMAP Watchdog"
252 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
254 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
255 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
257 config PNX4008_WATCHDOG
258 tristate "PNX4008 and LPC32XX Watchdog"
259 depends on ARCH_PNX4008 || ARCH_LPC32XX
261 Say Y here if to include support for the watchdog timer
262 in the PNX4008 or LPC32XX processor.
263 This driver can be built as a module by choosing M. The module
264 will be called pnx4008_wdt.
266 Say N if you are unsure.
269 tristate "IOP Watchdog"
271 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
273 Say Y here if to include support for the watchdog timer
274 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
275 be built as a module by choosing M. The module will
278 Note: The IOP13XX watchdog does an Internal Bus Reset which will
279 affect both cores and the peripherals of the IOP. The ATU-X
280 and/or ATUe configuration registers will remain intact, but if
281 operating as an Root Complex and/or Central Resource, the PCI-X
282 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
284 config DAVINCI_WATCHDOG
285 tristate "DaVinci watchdog"
286 depends on ARCH_DAVINCI
288 Say Y here if to include support for the watchdog timer
289 in the DaVinci DM644x/DM646x processors.
290 To compile this driver as a module, choose M here: the
291 module will be called davinci_wdt.
293 NOTE: once enabled, this timer cannot be disabled.
294 Say N if you are unsure.
296 config ORION_WATCHDOG
297 tristate "Orion watchdog"
298 depends on ARCH_ORION5X || ARCH_KIRKWOOD
300 Say Y here if to include support for the watchdog timer
301 in the Marvell Orion5x and Kirkwood ARM SoCs.
302 To compile this driver as a module, choose M here: the
303 module will be called orion_wdt.
305 config COH901327_WATCHDOG
306 bool "ST-Ericsson COH 901 327 watchdog"
308 default y if MACH_U300
310 Say Y here to include Watchdog timer support for the
311 watchdog embedded into the ST-Ericsson U300 series platforms.
312 This watchdog is used to reset the system and thus cannot be
313 compiled as a module.
315 config TWL4030_WATCHDOG
316 tristate "TWL4030 Watchdog"
317 depends on TWL4030_CORE
319 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
320 watchdog timer support for TWL4030 chips.
322 config STMP3XXX_WATCHDOG
323 tristate "Freescale STMP3XXX watchdog"
324 depends on ARCH_STMP3XXX
326 Say Y here if to include support for the watchdog timer
327 for the Sigmatel STMP37XX/378X SoC.
328 To compile this driver as a module, choose M here: the
329 module will be called stmp3xxx_wdt.
331 config NUC900_WATCHDOG
332 tristate "Nuvoton NUC900 watchdog"
333 depends on ARCH_W90X900
335 Say Y here if to include support for the watchdog timer
336 for the Nuvoton NUC900 series SoCs.
337 To compile this driver as a module, choose M here: the
338 module will be called nuc900_wdt.
341 tristate "Avionic Design Xanthos watchdog"
342 depends on ARCH_PXA_ADX
344 Say Y here if you want support for the watchdog timer on Avionic
345 Design Xanthos boards.
347 config TS72XX_WATCHDOG
348 tristate "TS-72XX SBC Watchdog"
349 depends on MACH_TS72XX
351 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
352 watchdog timer implemented in a external CPLD chip. Say Y here
353 if you want to support for the watchdog timer on TS-72XX boards.
355 To compile this driver as a module, choose M here: the
356 module will be called ts72xx_wdt.
358 config MAX63XX_WATCHDOG
359 tristate "Max63xx watchdog"
360 depends on ARM && HAS_IOMEM
362 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
365 tristate "IMX2+ Watchdog"
366 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
368 This is the driver for the hardware watchdog
369 on the Freescale IMX2 and later processors.
370 If you have one of these processors and wish to have
371 watchdog support enabled, say Y, otherwise say N.
373 To compile this driver as a module, choose M here: the
374 module will be called imx2_wdt.
378 config AT32AP700X_WDT
379 tristate "AT32AP700x watchdog"
380 depends on CPU_AT32AP700X
382 Watchdog timer embedded into AT32AP700x devices. This will reboot
383 your system when the timeout is reached.
385 # BLACKFIN Architecture
388 tristate "Blackfin On-Chip Watchdog Timer"
391 If you say yes here you will get support for the Blackfin On-Chip
392 Watchdog Timer. If you have one of these processors and wish to
393 have watchdog support enabled, say Y, otherwise say N.
395 To compile this driver as a module, choose M here: the
396 module will be called bfin_wdt.
404 # X86 (i386 + ia64 + x86_64) Architecture
407 tristate "Acquire SBC Watchdog Timer"
410 This is the driver for the hardware watchdog on Single Board
411 Computers produced by Acquire Inc (and others). This watchdog
412 simply watches your kernel to make sure it doesn't freeze, and if
413 it does, it reboots your computer after a certain amount of time.
415 To compile this driver as a module, choose M here: the
416 module will be called acquirewdt.
418 Most people will say N.
421 tristate "Advantech SBC Watchdog Timer"
424 If you are configuring a Linux kernel for the Advantech single-board
425 computer, say `Y' here to support its built-in watchdog timer
426 feature. More information can be found at
427 <http://www.advantech.com.tw/products/>
430 tristate "ALi M1535 PMU Watchdog Timer"
431 depends on X86 && PCI
433 This is the driver for the hardware watchdog on the ALi M1535 PMU.
435 To compile this driver as a module, choose M here: the
436 module will be called alim1535_wdt.
438 Most people will say N.
441 tristate "ALi M7101 PMU Computer Watchdog"
444 This is the driver for the hardware watchdog on the ALi M7101 PMU
445 as used in the x86 Cobalt servers and also found in some
446 SPARC Netra servers too.
448 To compile this driver as a module, choose M here: the
449 module will be called alim7101_wdt.
451 Most people will say N.
454 tristate "Fintek F71808E and F71882FG Watchdog"
455 depends on X86 && EXPERIMENTAL
457 This is the driver for the hardware watchdog on the Fintek
458 F71808E and F71882FG Super I/O controllers.
460 You can compile this driver directly into the kernel, or use
461 it as a module. The module will be called f71808e_wdt.
465 tristate "AMD Geode CS5535/CS5536 Watchdog"
466 depends on CS5535_MFGPT
468 This driver enables a watchdog capability built into the
469 CS5535/CS5536 companion chips for the AMD Geode GX and LX
470 processors. This watchdog watches your kernel to make sure
471 it doesn't freeze, and if it does, it reboots your computer after
472 a certain amount of time.
474 You can compile this driver directly into the kernel, or use
475 it as a module. The module will be called geodewdt.
478 tristate "AMD Elan SC520 processor Watchdog"
481 This is the driver for the hardware watchdog built in to the
482 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
483 This watchdog simply watches your kernel to make sure it doesn't
484 freeze, and if it does, it reboots your computer after a certain
487 You can compile this driver directly into the kernel, or use
488 it as a module. The module will be called sc520_wdt.
490 config SBC_FITPC2_WATCHDOG
491 tristate "Compulab SBC-FITPC2 watchdog"
494 This is the driver for the built-in watchdog timer on the fit-PC2,
495 fit-PC2i, CM-iAM single-board computers made by Compulab.
497 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
498 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
500 Entering BIOS setup temporary disables watchdog operation regardless to current state,
501 so system will not be restarted while user in BIOS setup.
503 Once watchdog was enabled the system will be restarted every
504 "Watchdog Timer Value" period, so to prevent it user can restart or
505 disable the watchdog.
507 To compile this driver as a module, choose M here: the
508 module will be called sbc_fitpc2_wdt.
510 Most people will say N.
513 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
516 Enable support for the watchdog timer on the Eurotech CPU-1220 and
517 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
518 information are at <http://www.eurotech.it/>.
521 tristate "IB700 SBC Watchdog Timer"
524 This is the driver for the hardware watchdog on the IB700 Single
525 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
526 simply watches your kernel to make sure it doesn't freeze, and if
527 it does, it reboots your computer after a certain amount of time.
529 This driver is like the WDT501 driver but for slightly different hardware.
531 To compile this driver as a module, choose M here: the
532 module will be called ib700wdt.
534 Most people will say N.
537 tristate "IBM Automatic Server Restart"
540 This is the driver for the IBM Automatic Server Restart watchdog
541 timer built-in into some eServer xSeries machines.
543 To compile this driver as a module, choose M here: the
544 module will be called ibmasr.
547 tristate "ICP Single Board Computer Watchdog Timer"
550 This is a driver for the hardware watchdog on the ICP Single
551 Board Computer. This driver is working on (at least) the following
552 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
554 To compile this driver as a module, choose M here: the
555 module will be called wafer5823wdt.
558 tristate "Intel 6300ESB Timer/Watchdog"
559 depends on X86 && PCI
561 Hardware driver for the watchdog timer built into the Intel
562 6300ESB controller hub.
564 To compile this driver as a module, choose M here: the
565 module will be called i6300esb.
568 tristate "Intel TCO Timer/Watchdog"
569 depends on (X86 || IA64) && PCI
571 Hardware driver for the intel TCO timer based watchdog devices.
572 These drivers are included in the Intel 82801 I/O Controller
573 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
576 The TCO (Total Cost of Ownership) timer is a watchdog timer
577 that will reboot the machine after its second expiration. The
578 expiration time can be configured with the "heartbeat" parameter.
580 On some motherboards the driver may fail to reset the chipset's
581 NO_REBOOT flag which prevents the watchdog from rebooting the
582 machine. If this is the case you will get a kernel message like
583 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
585 To compile this driver as a module, choose M here: the
586 module will be called iTCO_wdt.
588 config ITCO_VENDOR_SUPPORT
589 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
592 Add vendor specific support to the intel TCO timer based watchdog
593 devices. At this moment we only have additional support for some
594 SuperMicro Inc. motherboards.
597 tristate "IT8712F (Smart Guardian) Watchdog Timer"
600 This is the driver for the built-in watchdog timer on the IT8712F
601 Super I/0 chipset used on many motherboards.
603 To compile this driver as a module, choose M here: the
604 module will be called it8712f_wdt.
607 tristate "IT87 Watchdog Timer"
608 depends on X86 && EXPERIMENTAL
610 This is the driver for the hardware watchdog on the ITE IT8716,
611 IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
612 simply watches your kernel to make sure it doesn't freeze, and if
613 it does, it reboots your computer after a certain amount of time.
615 To compile this driver as a module, choose M here: the module will
619 tristate "HP Proliant iLO2+ Hardware Watchdog Timer"
622 A software monitoring watchdog and NMI sourcing driver. This driver
623 will detect lockups and provide a stack trace. This is a driver that
624 will only load on a HP ProLiant system with a minimum of iLO2 support.
625 To compile this driver as a module, choose M here: the module will be
628 config HPWDT_NMI_DECODING
629 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
630 depends on HP_WATCHDOG
632 When an NMI occurs this feature will make the necessary BIOS calls to
633 log the cause of the NMI.
636 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
639 This is a driver for National Semiconductor PC87307/PC97307 hardware
640 watchdog cards as found on the SC1200. This watchdog is mainly used
641 for power management purposes and can be used to power down the device
642 during inactivity periods (includes interrupt activity monitoring).
644 To compile this driver as a module, choose M here: the
645 module will be called sc1200wdt.
647 Most people will say N.
650 tristate "National Semiconductor SCx200 Watchdog"
651 depends on SCx200 && PCI
653 Enable the built-in watchdog timer support on the National
654 Semiconductor SCx200 processors.
656 If compiled as a module, it will be called scx200_wdt.
659 tristate "NS PC87413 watchdog"
662 This is the driver for the hardware watchdog on the PC87413 chipset
663 This watchdog simply watches your kernel to make sure it doesn't
664 freeze, and if it does, it reboots your computer after a certain
667 To compile this driver as a module, choose M here: the
668 module will be called pc87413_wdt.
670 Most people will say N.
673 tristate "RDC R-321x SoC watchdog"
674 depends on X86_RDC321X
676 This is the driver for the built in hardware watchdog
677 in the RDC R-321x SoC.
679 To compile this driver as a module, choose M here: the
680 module will be called rdc321x_wdt.
683 tristate "SBC-60XX Watchdog Timer"
686 This driver can be used with the watchdog timer found on some
687 single board computers, namely the 6010 PII based computer.
688 It may well work with other cards. It reads port 0x443 to enable
689 and re-set the watchdog timer, and reads port 0x45 to disable
690 the watchdog. If you have a card that behave in similar ways,
691 you can probably make this driver work with your card as well.
693 You can compile this driver directly into the kernel, or use
694 it as a module. The module will be called sbc60xxwdt.
697 tristate "SBC8360 Watchdog Timer"
701 This is the driver for the hardware watchdog on the SBC8360 Single
702 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
704 To compile this driver as a module, choose M here: the
705 module will be called sbc8360.
707 Most people will say N.
710 tristate "SBC Nano 7240 Watchdog Timer"
713 This is the driver for the hardware watchdog found on the IEI
714 single board computers EPIC Nano 7240 (and likely others). This
715 watchdog simply watches your kernel to make sure it doesn't freeze,
716 and if it does, it reboots your computer after a certain amount of
719 To compile this driver as a module, choose M here: the
720 module will be called sbc7240_wdt.
723 tristate "SMA CPU5 Watchdog"
727 To compile this driver as a module, choose M here: the
728 module will be called cpu5wdt.
730 config SMSC_SCH311X_WDT
731 tristate "SMSC SCH311X Watchdog Timer"
734 This is the driver for the hardware watchdog timer on the
735 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
736 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
739 To compile this driver as a module, choose M here: the
740 module will be called sch311x_wdt.
742 config SMSC37B787_WDT
743 tristate "Winbond SMsC37B787 Watchdog Timer"
746 This is the driver for the hardware watchdog component on the
747 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
748 from Vision Systems and maybe others.
750 This watchdog simply watches your kernel to make sure it doesn't
751 freeze, and if it does, it reboots your computer after a certain
754 Usually a userspace daemon will notify the kernel WDT driver that
755 userspace is still alive, at regular intervals.
757 To compile this driver as a module, choose M here: the
758 module will be called smsc37b787_wdt.
760 Most people will say N.
763 tristate "W83627HF Watchdog Timer"
766 This is the driver for the hardware watchdog on the W83627HF chipset
767 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
768 (and likely others). This watchdog simply watches your kernel to
769 make sure it doesn't freeze, and if it does, it reboots your computer
770 after a certain amount of time.
772 To compile this driver as a module, choose M here: the
773 module will be called w83627hf_wdt.
775 Most people will say N.
778 tristate "W83697HF/W83697HG Watchdog Timer"
781 This is the driver for the hardware watchdog on the W83697HF/HG
782 chipset as used in Dedibox/VIA motherboards (and likely others).
783 This watchdog simply watches your kernel to make sure it doesn't
784 freeze, and if it does, it reboots your computer after a certain
787 To compile this driver as a module, choose M here: the
788 module will be called w83697hf_wdt.
790 Most people will say N.
793 tristate "W83697UG/W83697UF Watchdog Timer"
796 This is the driver for the hardware watchdog on the W83697UG/UF
797 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
798 This watchdog simply watches your kernel to make sure it doesn't
799 freeze, and if it does, it reboots your computer after a certain
802 To compile this driver as a module, choose M here: the
803 module will be called w83697ug_wdt.
805 Most people will say N.
808 tristate "W83877F (EMACS) Watchdog Timer"
811 This is the driver for the hardware watchdog on the W83877F chipset
812 as used in EMACS PC-104 motherboards (and likely others). This
813 watchdog simply watches your kernel to make sure it doesn't freeze,
814 and if it does, it reboots your computer after a certain amount of
817 To compile this driver as a module, choose M here: the
818 module will be called w83877f_wdt.
820 Most people will say N.
823 tristate "W83977F (PCM-5335) Watchdog Timer"
826 This is the driver for the hardware watchdog on the W83977F I/O chip
827 as used in AAEON's PCM-5335 SBC (and likely others). This
828 watchdog simply watches your kernel to make sure it doesn't freeze,
829 and if it does, it reboots your computer after a certain amount of
832 To compile this driver as a module, choose M here: the
833 module will be called w83977f_wdt.
836 tristate "ZF MachZ Watchdog"
839 If you are using a ZF Micro MachZ processor, say Y here, otherwise
840 N. This is the driver for the watchdog timer built-in on that
841 processor using ZF-Logic interface. This watchdog simply watches
842 your kernel to make sure it doesn't freeze, and if it does, it
843 reboots your computer after a certain amount of time.
845 To compile this driver as a module, choose M here: the
846 module will be called machzwd.
848 config SBC_EPX_C3_WATCHDOG
849 tristate "Winsystems SBC EPX-C3 watchdog"
852 This is the driver for the built-in watchdog timer on the EPX-C3
853 Single-board computer made by Winsystems, Inc.
855 *Note*: This hardware watchdog is not probeable and thus there
856 is no way to know if writing to its IO address will corrupt
857 your system or have any real effect. The only way to be sure
858 that this driver does what you want is to make sure you
859 are running it on an EPX-C3 from Winsystems with the watchdog
860 timer at IO address 0x1ee and 0x1ef. It will write to both those
861 IO ports. Basically, the assumption is made that if you compile
862 this driver into your kernel and/or load it as a module, that you
863 know what you are doing and that you are in fact running on an
866 To compile this driver as a module, choose M here: the
867 module will be called sbc_epx_c3.
873 # M68KNOMMU Architecture
878 tristate "Broadcom BCM47xx Watchdog Timer"
881 Hardware driver for the Broadcom BCM47xx Watchog Timer.
884 tristate "IDT RC32434 SoC Watchdog Timer"
885 depends on MIKROTIK_RB532
887 Hardware driver for the IDT RC32434 SoC built-in
890 To compile this driver as a module, choose M here: the
891 module will be called rc32434_wdt.
894 tristate "Indy/I2 Hardware Watchdog"
895 depends on SGI_HAS_INDYDOG
897 Hardware driver for the Indy's/I2's watchdog. This is a
898 watchdog timer that will reboot the machine after a 60 second
899 timer expired and no process has written to /dev/watchdog during
903 tristate "MTX-1 Hardware Watchdog"
906 Hardware driver for the MTX-1 boards. This is a watchdog timer that
907 will reboot the machine after a 100 seconds timer expired.
910 tristate "PNX833x Hardware Watchdog"
911 depends on SOC_PNX8335
913 Hardware driver for the PNX833x's watchdog. This is a
914 watchdog timer that will reboot the machine after a programable
915 timer has expired and no process has written to /dev/watchdog during
919 tristate "Sibyte SoC hardware watchdog"
922 Watchdog driver for the built in watchdog hardware in Sibyte
923 SoC processors. There are apparently two watchdog timers
924 on such processors; this driver supports only the first one,
925 because currently Linux only supports exporting one watchdog
928 To compile this driver as a loadable module, choose M here.
929 The module will be called sb_wdog.
932 tristate "TI AR7 Watchdog Timer"
935 Hardware driver for the TI AR7 Watchdog Timer.
938 tristate "Toshiba TXx9 Watchdog Timer"
939 depends on CPU_TX39XX || CPU_TX49XX
941 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
944 tristate "Cavium OCTEON SOC family Watchdog Timer"
945 depends on CPU_CAVIUM_OCTEON
947 select EXPORT_UASM if OCTEON_WDT = m
949 Hardware driver for OCTEON's on chip watchdog timer.
950 Enables the watchdog for all cores running Linux. It
951 installs a NMI handler and pokes the watchdog based on an
952 interrupt. On first expiration of the watchdog, the
953 interrupt handler pokes it. The second expiration causes an
954 NMI that prints a message. The third expiration causes a
957 When userspace has /dev/watchdog open, no poking is done
958 from the first interrupt, it is then only poked when the
961 # PARISC Architecture
963 # POWERPC Architecture
966 tristate "GE Watchdog Timer"
967 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
969 Watchdog timer found in a number of GE single board computers.
972 bool "MPC52xx Watchdog Timer"
973 depends on PPC_MPC52xx
975 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
978 tristate "MPC8xxx Platform Watchdog Timer"
979 depends on PPC_8xx || PPC_83xx || PPC_86xx
981 This driver is for a SoC level watchdog that exists on some
982 Freescale PowerPC processors. So far this driver supports:
987 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
990 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
994 tristate "PIKA FPGA Watchdog"
998 This enables the watchdog in the PIKA FPGA. Currently used on
1002 bool "PowerPC Book-E Watchdog Timer"
1003 depends on BOOKE || 4xx
1005 Please see Documentation/watchdog/watchdog-api.txt for
1008 # PPC64 Architecture
1010 config WATCHDOG_RTAS
1011 tristate "RTAS watchdog"
1014 This driver adds watchdog support for the RTAS watchdog.
1016 To compile this driver as a module, choose M here. The module
1017 will be called wdrtas.
1022 tristate "z/VM Watchdog Timer"
1025 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1026 provide a virtual watchdog timer to their guest that cause a
1027 user define Control Program command to be executed after a
1030 To compile this driver as a module, choose M here. The module
1031 will be called vmwatchdog.
1033 # SUPERH (sh + sh64) Architecture
1036 tristate "SuperH Watchdog"
1037 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1039 This driver adds watchdog support for the integrated watchdog in the
1040 SuperH processors. If you have one of these processors and wish
1041 to have watchdog support enabled, say Y, otherwise say N.
1043 As a side note, saying Y here will automatically boost HZ to 1000
1044 so that the timer has a chance to clear the overflow counter. On
1045 slower systems (such as the SH-2 and SH-3) this will likely yield
1046 some performance issues. As such, the WDT should be avoided here
1047 unless it is absolutely necessary.
1049 To compile this driver as a module, choose M here: the
1050 module will be called shwdt.
1053 bool "Allow mmap of SH WDT"
1057 If you say Y here, user applications will be able to mmap the
1060 # SPARC Architecture
1062 # SPARC64 Architecture
1064 config WATCHDOG_CP1XXX
1065 tristate "CP1XXX Hardware Watchdog support"
1066 depends on SPARC64 && PCI
1068 This is the driver for the hardware watchdog timers present on
1069 Sun Microsystems CompactPCI models CP1400 and CP1500.
1071 To compile this driver as a module, choose M here: the
1072 module will be called cpwatchdog.
1074 If you do not have a CompactPCI model CP1400 or CP1500, or
1075 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1076 you should say N to this option.
1079 tristate "RIO Hardware Watchdog support"
1080 depends on SPARC64 && PCI
1082 Say Y here to support the hardware watchdog capability on Sun RIO
1083 machines. The watchdog timeout period is normally one minute but
1084 can be changed with a boot-time parameter.
1086 # XTENSA Architecture
1089 # ISA-based Watchdog Cards
1092 comment "ISA-based Watchdog Cards"
1096 tristate "Berkshire Products ISA-PC Watchdog"
1099 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1100 This card simply watches your kernel to make sure it doesn't freeze,
1101 and if it does, it reboots your computer after a certain amount of
1102 time. This driver is like the WDT501 driver but for different
1103 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1104 watchdog cards can be ordered from <http://www.berkprod.com/>.
1106 To compile this driver as a module, choose M here: the
1107 module will be called pcwd.
1109 Most people will say N.
1112 tristate "Mixcom Watchdog"
1115 This is a driver for the Mixcom hardware watchdog cards. This
1116 watchdog simply watches your kernel to make sure it doesn't freeze,
1117 and if it does, it reboots your computer after a certain amount of
1120 To compile this driver as a module, choose M here: the
1121 module will be called mixcomwd.
1123 Most people will say N.
1126 tristate "WDT Watchdog timer"
1129 If you have a WDT500P or WDT501P watchdog board, say Y here,
1130 otherwise N. It is not possible to probe for this board, which means
1131 that you have to inform the kernel about the IO port and IRQ that
1132 is needed (you can do this via the io and irq parameters)
1134 To compile this driver as a module, choose M here: the
1135 module will be called wdt.
1138 # PCI-based Watchdog Cards
1141 comment "PCI-based Watchdog Cards"
1144 config PCIPCWATCHDOG
1145 tristate "Berkshire Products PCI-PC Watchdog"
1148 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1149 This card simply watches your kernel to make sure it doesn't freeze,
1150 and if it does, it reboots your computer after a certain amount of
1151 time. The card can also monitor the internal temperature of the PC.
1152 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1154 To compile this driver as a module, choose M here: the
1155 module will be called pcwd_pci.
1157 Most people will say N.
1160 tristate "PCI-WDT500/501 Watchdog timer"
1163 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1165 If you have a PCI-WDT501 watchdog board then you can enable the
1166 temperature sensor by setting the type parameter to 501.
1168 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1169 can do this via the tachometer parameter. Only do this if you have a
1170 fan tachometer actually set up.
1172 To compile this driver as a module, choose M here: the
1173 module will be called wdt_pci.
1176 # USB-based Watchdog Cards
1179 comment "USB-based Watchdog Cards"
1182 config USBPCWATCHDOG
1183 tristate "Berkshire Products USB-PC Watchdog"
1186 This is the driver for the Berkshire Products USB-PC Watchdog card.
1187 This card simply watches your kernel to make sure it doesn't freeze,
1188 and if it does, it reboots your computer after a certain amount of
1189 time. The card can also monitor the internal temperature of the PC.
1190 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1192 To compile this driver as a module, choose M here: the
1193 module will be called pcwd_usb.
1195 Most people will say N.