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.
76 config ARM_SP805_WATCHDOG
77 tristate "ARM SP805 Watchdog"
80 ARM Primecell SP805 Watchdog timer. This will reboot your system when
81 the timeout is reached.
83 config AT91RM9200_WATCHDOG
84 tristate "AT91RM9200 watchdog"
85 depends on ARCH_AT91RM9200
87 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
88 system when the timeout is reached.
90 config AT91SAM9X_WATCHDOG
91 tristate "AT91SAM9X / AT91CAP9 watchdog"
92 depends on ARCH_AT91 && !ARCH_AT91RM9200
94 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
95 reboot your system when the timeout is reached.
98 tristate "DC21285 watchdog"
101 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
102 here if you wish to use this. Alternatively say M to compile the
103 driver as a module, which will be called wdt285.
105 This driver does not work on all machines. In particular, early CATS
106 boards have hardware problems that will cause the machine to simply
107 lock up if the watchdog fires.
109 "If in doubt, leave it out" - say N.
112 tristate "NetWinder WB83C977 watchdog"
113 depends on FOOTBRIDGE && ARCH_NETWINDER
115 Say Y here to include support for the WB977 watchdog included in
116 NetWinder machines. Alternatively say M to compile the driver as
117 a module, which will be called wdt977.
119 Not sure? It's safe to say N.
121 config IXP2000_WATCHDOG
122 tristate "IXP2000 Watchdog"
123 depends on ARCH_IXP2000
125 Say Y here if to include support for the watchdog timer
126 in the Intel IXP2000(2400, 2800, 2850) network processors.
127 This driver can be built as a module by choosing M. The module
128 will be called ixp2000_wdt.
130 Say N if you are unsure.
132 config IXP4XX_WATCHDOG
133 tristate "IXP4xx Watchdog"
134 depends on ARCH_IXP4XX
136 Say Y here if to include support for the watchdog timer
137 in the Intel IXP4xx network processors. This driver can
138 be built as a module by choosing M. The module will
139 be called ixp4xx_wdt.
141 Note: The internal IXP4xx watchdog does a soft CPU reset
142 which doesn't reset any peripherals. There are circumstances
143 where the watchdog will fail to reset the board correctly
144 (e.g., if the boot ROM is in an unreadable state).
146 Say N if you are unsure.
148 config KS8695_WATCHDOG
149 tristate "KS8695 watchdog"
150 depends on ARCH_KS8695
152 Watchdog timer embedded into KS8695 processor. This will reboot your
153 system when the timeout is reached.
155 config HAVE_S3C2410_WATCHDOG
158 This will include watchdog timer support for Samsung SoCs. If
159 you want to include watchdog support for any machine, kindly
160 select this in the respective mach-XXXX/Kconfig file.
162 config S3C2410_WATCHDOG
163 tristate "S3C2410 Watchdog"
164 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
166 Watchdog timer block in the Samsung SoCs. This will reboot
167 the system when the timer expires with the watchdog enabled.
169 The driver is limited by the speed of the system's PCLK
170 signal, so with reasonably fast systems (PCLK around 50-66MHz)
171 then watchdog intervals of over approximately 20seconds are
174 The driver can be built as a module by choosing M, and will
175 be called s3c2410_wdt
177 config SA1100_WATCHDOG
178 tristate "SA1100/PXA2xx watchdog"
179 depends on ARCH_SA1100 || ARCH_PXA
181 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
182 reboot your system when timeout is reached.
184 NOTE: once enabled, this timer cannot be disabled.
186 To compile this driver as a module, choose M here: the
187 module will be called sa1100_wdt.
189 config MPCORE_WATCHDOG
190 tristate "MPcore watchdog"
191 depends on HAVE_ARM_TWD
193 Watchdog timer embedded into the MPcore system.
195 To compile this driver as a module, choose M here: the
196 module will be called mpcore_wdt.
198 config EP93XX_WATCHDOG
199 tristate "EP93xx Watchdog"
200 depends on ARCH_EP93XX
202 Say Y here if to include support for the watchdog timer
203 embedded in the Cirrus Logic EP93xx family of devices.
205 To compile this driver as a module, choose M here: the
206 module will be called ep93xx_wdt.
209 tristate "OMAP Watchdog"
210 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
212 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
213 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
215 config PNX4008_WATCHDOG
216 tristate "PNX4008 and LPC32XX Watchdog"
217 depends on ARCH_PNX4008 || ARCH_LPC32XX
219 Say Y here if to include support for the watchdog timer
220 in the PNX4008 or LPC32XX processor.
221 This driver can be built as a module by choosing M. The module
222 will be called pnx4008_wdt.
224 Say N if you are unsure.
227 tristate "IOP Watchdog"
229 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
231 Say Y here if to include support for the watchdog timer
232 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
233 be built as a module by choosing M. The module will
236 Note: The IOP13XX watchdog does an Internal Bus Reset which will
237 affect both cores and the peripherals of the IOP. The ATU-X
238 and/or ATUe configuration registers will remain intact, but if
239 operating as an Root Complex and/or Central Resource, the PCI-X
240 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
242 config DAVINCI_WATCHDOG
243 tristate "DaVinci watchdog"
244 depends on ARCH_DAVINCI
246 Say Y here if to include support for the watchdog timer
247 in the DaVinci DM644x/DM646x processors.
248 To compile this driver as a module, choose M here: the
249 module will be called davinci_wdt.
251 NOTE: once enabled, this timer cannot be disabled.
252 Say N if you are unsure.
254 config ORION_WATCHDOG
255 tristate "Orion watchdog"
256 depends on ARCH_ORION5X || ARCH_KIRKWOOD
258 Say Y here if to include support for the watchdog timer
259 in the Marvell Orion5x and Kirkwood ARM SoCs.
260 To compile this driver as a module, choose M here: the
261 module will be called orion_wdt.
263 config COH901327_WATCHDOG
264 bool "ST-Ericsson COH 901 327 watchdog"
266 default y if MACH_U300
268 Say Y here to include Watchdog timer support for the
269 watchdog embedded into the ST-Ericsson U300 series platforms.
270 This watchdog is used to reset the system and thus cannot be
271 compiled as a module.
273 config TWL4030_WATCHDOG
274 tristate "TWL4030 Watchdog"
275 depends on TWL4030_CORE
277 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
278 watchdog timer support for TWL4030 chips.
280 config STMP3XXX_WATCHDOG
281 tristate "Freescale STMP3XXX watchdog"
282 depends on ARCH_STMP3XXX
284 Say Y here if to include support for the watchdog timer
285 for the Sigmatel STMP37XX/378X SoC.
286 To compile this driver as a module, choose M here: the
287 module will be called stmp3xxx_wdt.
289 config NUC900_WATCHDOG
290 tristate "Nuvoton NUC900 watchdog"
291 depends on ARCH_W90X900
293 Say Y here if to include support for the watchdog timer
294 for the Nuvoton NUC900 series SoCs.
295 To compile this driver as a module, choose M here: the
296 module will be called nuc900_wdt.
299 tristate "Avionic Design Xanthos watchdog"
300 depends on ARCH_PXA_ADX
302 Say Y here if you want support for the watchdog timer on Avionic
303 Design Xanthos boards.
305 config TS72XX_WATCHDOG
306 tristate "TS-72XX SBC Watchdog"
307 depends on MACH_TS72XX
309 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
310 watchdog timer implemented in a external CPLD chip. Say Y here
311 if you want to support for the watchdog timer on TS-72XX boards.
313 To compile this driver as a module, choose M here: the
314 module will be called ts72xx_wdt.
316 config MAX63XX_WATCHDOG
317 tristate "Max63xx watchdog"
318 depends on ARM && HAS_IOMEM
320 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
323 tristate "IMX2+ Watchdog"
324 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
326 This is the driver for the hardware watchdog
327 on the Freescale IMX2 and later processors.
328 If you have one of these processors and wish to have
329 watchdog support enabled, say Y, otherwise say N.
331 To compile this driver as a module, choose M here: the
332 module will be called imx2_wdt.
336 config AT32AP700X_WDT
337 tristate "AT32AP700x watchdog"
338 depends on CPU_AT32AP700X
340 Watchdog timer embedded into AT32AP700x devices. This will reboot
341 your system when the timeout is reached.
343 # BLACKFIN Architecture
346 tristate "Blackfin On-Chip Watchdog Timer"
349 If you say yes here you will get support for the Blackfin On-Chip
350 Watchdog Timer. If you have one of these processors and wish to
351 have watchdog support enabled, say Y, otherwise say N.
353 To compile this driver as a module, choose M here: the
354 module will be called bfin_wdt.
362 # X86 (i386 + ia64 + x86_64) Architecture
365 tristate "Acquire SBC Watchdog Timer"
368 This is the driver for the hardware watchdog on Single Board
369 Computers produced by Acquire Inc (and others). This watchdog
370 simply watches your kernel to make sure it doesn't freeze, and if
371 it does, it reboots your computer after a certain amount of time.
373 To compile this driver as a module, choose M here: the
374 module will be called acquirewdt.
376 Most people will say N.
379 tristate "Advantech SBC Watchdog Timer"
382 If you are configuring a Linux kernel for the Advantech single-board
383 computer, say `Y' here to support its built-in watchdog timer
384 feature. More information can be found at
385 <http://www.advantech.com.tw/products/>
388 tristate "ALi M1535 PMU Watchdog Timer"
389 depends on X86 && PCI
391 This is the driver for the hardware watchdog on the ALi M1535 PMU.
393 To compile this driver as a module, choose M here: the
394 module will be called alim1535_wdt.
396 Most people will say N.
399 tristate "ALi M7101 PMU Computer Watchdog"
402 This is the driver for the hardware watchdog on the ALi M7101 PMU
403 as used in the x86 Cobalt servers and also found in some
404 SPARC Netra servers too.
406 To compile this driver as a module, choose M here: the
407 module will be called alim7101_wdt.
409 Most people will say N.
412 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
413 depends on X86 && EXPERIMENTAL
415 This is the driver for the hardware watchdog on the Fintek
416 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
418 You can compile this driver directly into the kernel, or use
419 it as a module. The module will be called f71808e_wdt.
422 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
423 depends on X86 && PCI
425 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
426 (Total Cost of Ownership) timer is a watchdog timer that will reboot
427 the machine after its expiration. The expiration time can be
428 configured with the "heartbeat" parameter.
430 To compile this driver as a module, choose M here: the
431 module will be called sp5100_tco.
434 tristate "AMD Geode CS5535/CS5536 Watchdog"
435 depends on CS5535_MFGPT
437 This driver enables a watchdog capability built into the
438 CS5535/CS5536 companion chips for the AMD Geode GX and LX
439 processors. This watchdog watches your kernel to make sure
440 it doesn't freeze, and if it does, it reboots your computer after
441 a certain amount of time.
443 You can compile this driver directly into the kernel, or use
444 it as a module. The module will be called geodewdt.
447 tristate "AMD Elan SC520 processor Watchdog"
450 This is the driver for the hardware watchdog built in to the
451 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
452 This watchdog simply watches your kernel to make sure it doesn't
453 freeze, and if it does, it reboots your computer after a certain
456 You can compile this driver directly into the kernel, or use
457 it as a module. The module will be called sc520_wdt.
459 config SBC_FITPC2_WATCHDOG
460 tristate "Compulab SBC-FITPC2 watchdog"
463 This is the driver for the built-in watchdog timer on the fit-PC2,
464 fit-PC2i, CM-iAM single-board computers made by Compulab.
466 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
467 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
469 Entering BIOS setup temporary disables watchdog operation regardless to current state,
470 so system will not be restarted while user in BIOS setup.
472 Once watchdog was enabled the system will be restarted every
473 "Watchdog Timer Value" period, so to prevent it user can restart or
474 disable the watchdog.
476 To compile this driver as a module, choose M here: the
477 module will be called sbc_fitpc2_wdt.
479 Most people will say N.
482 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
485 Enable support for the watchdog timer on the Eurotech CPU-1220 and
486 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
487 information are at <http://www.eurotech.it/>.
490 tristate "IB700 SBC Watchdog Timer"
493 This is the driver for the hardware watchdog on the IB700 Single
494 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
495 simply watches your kernel to make sure it doesn't freeze, and if
496 it does, it reboots your computer after a certain amount of time.
498 This driver is like the WDT501 driver but for slightly different hardware.
500 To compile this driver as a module, choose M here: the
501 module will be called ib700wdt.
503 Most people will say N.
506 tristate "IBM Automatic Server Restart"
509 This is the driver for the IBM Automatic Server Restart watchdog
510 timer built-in into some eServer xSeries machines.
512 To compile this driver as a module, choose M here: the
513 module will be called ibmasr.
516 tristate "ICP Single Board Computer Watchdog Timer"
519 This is a driver for the hardware watchdog on the ICP Single
520 Board Computer. This driver is working on (at least) the following
521 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
523 To compile this driver as a module, choose M here: the
524 module will be called wafer5823wdt.
527 tristate "Intel 6300ESB Timer/Watchdog"
528 depends on X86 && PCI
530 Hardware driver for the watchdog timer built into the Intel
531 6300ESB controller hub.
533 To compile this driver as a module, choose M here: the
534 module will be called i6300esb.
536 config INTEL_SCU_WATCHDOG
537 bool "Intel SCU Watchdog for Mobile Platforms"
539 depends on INTEL_SCU_IPC
541 Hardware driver for the watchdog time built into the Intel SCU
542 for Intel Mobile Platforms.
544 To compile this driver as a module, choose M here.
547 tristate "Intel TCO Timer/Watchdog"
548 depends on (X86 || IA64) && PCI
550 Hardware driver for the intel TCO timer based watchdog devices.
551 These drivers are included in the Intel 82801 I/O Controller
552 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
555 The TCO (Total Cost of Ownership) timer is a watchdog timer
556 that will reboot the machine after its second expiration. The
557 expiration time can be configured with the "heartbeat" parameter.
559 On some motherboards the driver may fail to reset the chipset's
560 NO_REBOOT flag which prevents the watchdog from rebooting the
561 machine. If this is the case you will get a kernel message like
562 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
564 To compile this driver as a module, choose M here: the
565 module will be called iTCO_wdt.
567 config ITCO_VENDOR_SUPPORT
568 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
571 Add vendor specific support to the intel TCO timer based watchdog
572 devices. At this moment we only have additional support for some
573 SuperMicro Inc. motherboards.
576 tristate "IT8712F (Smart Guardian) Watchdog Timer"
579 This is the driver for the built-in watchdog timer on the IT8712F
580 Super I/0 chipset used on many motherboards.
582 If the driver does not work, then make sure that the game port in
585 To compile this driver as a module, choose M here: the
586 module will be called it8712f_wdt.
589 tristate "IT87 Watchdog Timer"
590 depends on X86 && EXPERIMENTAL
592 This is the driver for the hardware watchdog on the ITE IT8702,
593 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.
594 This watchdog simply watches your kernel to make sure it doesn't
595 freeze, and if it does, it reboots your computer after a certain
598 To compile this driver as a module, choose M here: the module will
602 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
606 A software monitoring watchdog and NMI sourcing driver. This driver
607 will detect lockups and provide a stack trace. This is a driver that
608 will only load on an HP ProLiant system with a minimum of iLO2 support.
609 To compile this driver as a module, choose M here: the module will be
612 config HPWDT_NMI_DECODING
613 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
614 depends on HP_WATCHDOG
617 When an NMI occurs this feature will make the necessary BIOS calls to
618 log the cause of the NMI.
621 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
624 This is a driver for National Semiconductor PC87307/PC97307 hardware
625 watchdog cards as found on the SC1200. This watchdog is mainly used
626 for power management purposes and can be used to power down the device
627 during inactivity periods (includes interrupt activity monitoring).
629 To compile this driver as a module, choose M here: the
630 module will be called sc1200wdt.
632 Most people will say N.
635 tristate "National Semiconductor SCx200 Watchdog"
636 depends on SCx200 && PCI
638 Enable the built-in watchdog timer support on the National
639 Semiconductor SCx200 processors.
641 If compiled as a module, it will be called scx200_wdt.
644 tristate "NS PC87413 watchdog"
647 This is the driver for the hardware watchdog on the PC87413 chipset
648 This watchdog simply watches your kernel to make sure it doesn't
649 freeze, and if it does, it reboots your computer after a certain
652 To compile this driver as a module, choose M here: the
653 module will be called pc87413_wdt.
655 Most people will say N.
658 tristate "nVidia TCO Timer/Watchdog"
659 depends on X86 && PCI
661 Hardware driver for the TCO timer built into the nVidia Hub family
662 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
663 watchdog timer that will reboot the machine after its second
664 expiration. The expiration time can be configured with the
665 "heartbeat" parameter.
667 On some motherboards the driver may fail to reset the chipset's
668 NO_REBOOT flag which prevents the watchdog from rebooting the
669 machine. If this is the case you will get a kernel message like
670 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
672 To compile this driver as a module, choose M here: the
673 module will be called nv_tco.
676 tristate "RDC R-321x SoC watchdog"
677 depends on X86_RDC321X
679 This is the driver for the built in hardware watchdog
680 in the RDC R-321x SoC.
682 To compile this driver as a module, choose M here: the
683 module will be called rdc321x_wdt.
686 tristate "SBC-60XX Watchdog Timer"
689 This driver can be used with the watchdog timer found on some
690 single board computers, namely the 6010 PII based computer.
691 It may well work with other cards. It reads port 0x443 to enable
692 and re-set the watchdog timer, and reads port 0x45 to disable
693 the watchdog. If you have a card that behave in similar ways,
694 you can probably make this driver work with your card as well.
696 You can compile this driver directly into the kernel, or use
697 it as a module. The module will be called sbc60xxwdt.
700 tristate "SBC8360 Watchdog Timer"
704 This is the driver for the hardware watchdog on the SBC8360 Single
705 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
707 To compile this driver as a module, choose M here: the
708 module will be called sbc8360.
710 Most people will say N.
713 tristate "SBC Nano 7240 Watchdog Timer"
716 This is the driver for the hardware watchdog found on the IEI
717 single board computers EPIC Nano 7240 (and likely others). This
718 watchdog simply watches your kernel to make sure it doesn't freeze,
719 and if it does, it reboots your computer after a certain amount of
722 To compile this driver as a module, choose M here: the
723 module will be called sbc7240_wdt.
726 tristate "SMA CPU5 Watchdog"
730 To compile this driver as a module, choose M here: the
731 module will be called cpu5wdt.
733 config SMSC_SCH311X_WDT
734 tristate "SMSC SCH311X Watchdog Timer"
737 This is the driver for the hardware watchdog timer on the
738 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
739 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
742 To compile this driver as a module, choose M here: the
743 module will be called sch311x_wdt.
745 config SMSC37B787_WDT
746 tristate "Winbond SMsC37B787 Watchdog Timer"
749 This is the driver for the hardware watchdog component on the
750 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
751 from Vision Systems and maybe others.
753 This watchdog simply watches your kernel to make sure it doesn't
754 freeze, and if it does, it reboots your computer after a certain
757 Usually a userspace daemon will notify the kernel WDT driver that
758 userspace is still alive, at regular intervals.
760 To compile this driver as a module, choose M here: the
761 module will be called smsc37b787_wdt.
763 Most people will say N.
766 tristate "W83627HF/W83627DHG Watchdog Timer"
769 This is the driver for the hardware watchdog on the W83627HF chipset
770 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
771 (and likely others). The driver also supports the W83627DHG chip.
772 This watchdog simply watches your kernel to make sure it doesn't
773 freeze, and if it does, it reboots your computer after a certain
776 To compile this driver as a module, choose M here: the
777 module will be called w83627hf_wdt.
779 Most people will say N.
782 tristate "W83697HF/W83697HG Watchdog Timer"
785 This is the driver for the hardware watchdog on the W83697HF/HG
786 chipset as used in Dedibox/VIA motherboards (and likely others).
787 This watchdog simply watches your kernel to make sure it doesn't
788 freeze, and if it does, it reboots your computer after a certain
791 To compile this driver as a module, choose M here: the
792 module will be called w83697hf_wdt.
794 Most people will say N.
797 tristate "W83697UG/W83697UF Watchdog Timer"
800 This is the driver for the hardware watchdog on the W83697UG/UF
801 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
802 This watchdog simply watches your kernel to make sure it doesn't
803 freeze, and if it does, it reboots your computer after a certain
806 To compile this driver as a module, choose M here: the
807 module will be called w83697ug_wdt.
809 Most people will say N.
812 tristate "W83877F (EMACS) Watchdog Timer"
815 This is the driver for the hardware watchdog on the W83877F chipset
816 as used in EMACS PC-104 motherboards (and likely others). This
817 watchdog simply watches your kernel to make sure it doesn't freeze,
818 and if it does, it reboots your computer after a certain amount of
821 To compile this driver as a module, choose M here: the
822 module will be called w83877f_wdt.
824 Most people will say N.
827 tristate "W83977F (PCM-5335) Watchdog Timer"
830 This is the driver for the hardware watchdog on the W83977F I/O chip
831 as used in AAEON's PCM-5335 SBC (and likely others). This
832 watchdog simply watches your kernel to make sure it doesn't freeze,
833 and if it does, it reboots your computer after a certain amount of
836 To compile this driver as a module, choose M here: the
837 module will be called w83977f_wdt.
840 tristate "ZF MachZ Watchdog"
843 If you are using a ZF Micro MachZ processor, say Y here, otherwise
844 N. This is the driver for the watchdog timer built-in on that
845 processor using ZF-Logic interface. This watchdog simply watches
846 your kernel to make sure it doesn't freeze, and if it does, it
847 reboots your computer after a certain amount of time.
849 To compile this driver as a module, choose M here: the
850 module will be called machzwd.
852 config SBC_EPX_C3_WATCHDOG
853 tristate "Winsystems SBC EPX-C3 watchdog"
856 This is the driver for the built-in watchdog timer on the EPX-C3
857 Single-board computer made by Winsystems, Inc.
859 *Note*: This hardware watchdog is not probeable and thus there
860 is no way to know if writing to its IO address will corrupt
861 your system or have any real effect. The only way to be sure
862 that this driver does what you want is to make sure you
863 are running it on an EPX-C3 from Winsystems with the watchdog
864 timer at IO address 0x1ee and 0x1ef. It will write to both those
865 IO ports. Basically, the assumption is made that if you compile
866 this driver into your kernel and/or load it as a module, that you
867 know what you are doing and that you are in fact running on an
870 To compile this driver as a module, choose M here: the
871 module will be called sbc_epx_c3.
877 config M54xx_WATCHDOG
878 tristate "MCF54xx watchdog support"
881 To compile this driver as a module, choose M here: the
882 module will be called m54xx_wdt.
887 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
890 Hardware driver for the built-in watchdog timer on the Atheros
891 AR71XX/AR724X/AR913X SoCs.
894 tristate "Broadcom BCM47xx Watchdog Timer"
897 Hardware driver for the Broadcom BCM47xx Watchog Timer.
900 tristate "IDT RC32434 SoC Watchdog Timer"
901 depends on MIKROTIK_RB532
903 Hardware driver for the IDT RC32434 SoC built-in
906 To compile this driver as a module, choose M here: the
907 module will be called rc32434_wdt.
910 tristate "Indy/I2 Hardware Watchdog"
911 depends on SGI_HAS_INDYDOG
913 Hardware driver for the Indy's/I2's watchdog. This is a
914 watchdog timer that will reboot the machine after a 60 second
915 timer expired and no process has written to /dev/watchdog during
919 tristate "Ingenic jz4740 SoC hardware watchdog"
920 depends on MACH_JZ4740
922 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
925 tristate "MTX-1 Hardware Watchdog"
928 Hardware driver for the MTX-1 boards. This is a watchdog timer that
929 will reboot the machine after a 100 seconds timer expired.
932 tristate "PNX833x Hardware Watchdog"
933 depends on SOC_PNX8335
935 Hardware driver for the PNX833x's watchdog. This is a
936 watchdog timer that will reboot the machine after a programable
937 timer has expired and no process has written to /dev/watchdog during
941 tristate "Sibyte SoC hardware watchdog"
944 Watchdog driver for the built in watchdog hardware in Sibyte
945 SoC processors. There are apparently two watchdog timers
946 on such processors; this driver supports only the first one,
947 because currently Linux only supports exporting one watchdog
950 To compile this driver as a loadable module, choose M here.
951 The module will be called sb_wdog.
954 tristate "TI AR7 Watchdog Timer"
957 Hardware driver for the TI AR7 Watchdog Timer.
960 tristate "Toshiba TXx9 Watchdog Timer"
961 depends on CPU_TX39XX || CPU_TX49XX
963 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
966 tristate "Cavium OCTEON SOC family Watchdog Timer"
967 depends on CPU_CAVIUM_OCTEON
969 select EXPORT_UASM if OCTEON_WDT = m
971 Hardware driver for OCTEON's on chip watchdog timer.
972 Enables the watchdog for all cores running Linux. It
973 installs a NMI handler and pokes the watchdog based on an
974 interrupt. On first expiration of the watchdog, the
975 interrupt handler pokes it. The second expiration causes an
976 NMI that prints a message. The third expiration causes a
979 When userspace has /dev/watchdog open, no poking is done
980 from the first interrupt, it is then only poked when the
984 tristate "Broadcom BCM63xx hardware watchdog"
987 Watchdog driver for the built in watchdog hardware in Broadcom
990 To compile this driver as a loadable module, choose M here.
991 The module will be called bcm63xx_wdt.
993 # PARISC Architecture
995 # POWERPC Architecture
998 tristate "GE Watchdog Timer"
999 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
1001 Watchdog timer found in a number of GE single board computers.
1004 bool "MPC52xx Watchdog Timer"
1005 depends on PPC_MPC52xx
1007 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1010 tristate "MPC8xxx Platform Watchdog Timer"
1011 depends on PPC_8xx || PPC_83xx || PPC_86xx
1013 This driver is for a SoC level watchdog that exists on some
1014 Freescale PowerPC processors. So far this driver supports:
1019 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1022 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1026 tristate "PIKA FPGA Watchdog"
1030 This enables the watchdog in the PIKA FPGA. Currently used on
1034 tristate "PowerPC Book-E Watchdog Timer"
1035 depends on BOOKE || 4xx
1037 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1038 MPC85xx SOCs and the IBM PowerPC 440.
1040 Please see Documentation/watchdog/watchdog-api.txt for
1043 config BOOKE_WDT_DEFAULT_TIMEOUT
1044 int "PowerPC Book-E Watchdog Timer Default Timeout"
1045 depends on BOOKE_WDT
1046 default 38 if FSL_BOOKE
1047 range 0 63 if FSL_BOOKE
1048 default 3 if !FSL_BOOKE
1049 range 0 3 if !FSL_BOOKE
1051 Select the default watchdog timer period to be used by the PowerPC
1052 Book-E watchdog driver. A watchdog "event" occurs when the bit
1053 position represented by this number transitions from zero to one.
1055 For Freescale Book-E processors, this is a number between 0 and 63.
1056 For other Book-E processors, this is a number between 0 and 3.
1058 The value can be overidden by the wdt_period command-line parameter.
1060 # PPC64 Architecture
1062 config WATCHDOG_RTAS
1063 tristate "RTAS watchdog"
1066 This driver adds watchdog support for the RTAS watchdog.
1068 To compile this driver as a module, choose M here. The module
1069 will be called wdrtas.
1074 tristate "z/VM Watchdog Timer"
1077 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1078 provide a virtual watchdog timer to their guest that cause a
1079 user define Control Program command to be executed after a
1082 To compile this driver as a module, choose M here. The module
1083 will be called vmwatchdog.
1085 # SUPERH (sh + sh64) Architecture
1088 tristate "SuperH Watchdog"
1089 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1091 This driver adds watchdog support for the integrated watchdog in the
1092 SuperH processors. If you have one of these processors and wish
1093 to have watchdog support enabled, say Y, otherwise say N.
1095 As a side note, saying Y here will automatically boost HZ to 1000
1096 so that the timer has a chance to clear the overflow counter. On
1097 slower systems (such as the SH-2 and SH-3) this will likely yield
1098 some performance issues. As such, the WDT should be avoided here
1099 unless it is absolutely necessary.
1101 To compile this driver as a module, choose M here: the
1102 module will be called shwdt.
1104 # SPARC Architecture
1106 # SPARC64 Architecture
1108 config WATCHDOG_CP1XXX
1109 tristate "CP1XXX Hardware Watchdog support"
1110 depends on SPARC64 && PCI
1112 This is the driver for the hardware watchdog timers present on
1113 Sun Microsystems CompactPCI models CP1400 and CP1500.
1115 To compile this driver as a module, choose M here: the
1116 module will be called cpwatchdog.
1118 If you do not have a CompactPCI model CP1400 or CP1500, or
1119 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1120 you should say N to this option.
1123 tristate "RIO Hardware Watchdog support"
1124 depends on SPARC64 && PCI
1126 Say Y here to support the hardware watchdog capability on Sun RIO
1127 machines. The watchdog timeout period is normally one minute but
1128 can be changed with a boot-time parameter.
1130 # XTENSA Architecture
1135 tristate "Xen Watchdog support"
1138 Say Y here to support the hypervisor watchdog capability provided
1139 by Xen 4.0 and newer. The watchdog timeout period is normally one
1140 minute but can be changed with a boot-time parameter.
1143 # ISA-based Watchdog Cards
1146 comment "ISA-based Watchdog Cards"
1150 tristate "Berkshire Products ISA-PC Watchdog"
1153 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1154 This card simply watches your kernel to make sure it doesn't freeze,
1155 and if it does, it reboots your computer after a certain amount of
1156 time. This driver is like the WDT501 driver but for different
1157 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1158 watchdog cards can be ordered from <http://www.berkprod.com/>.
1160 To compile this driver as a module, choose M here: the
1161 module will be called pcwd.
1163 Most people will say N.
1166 tristate "Mixcom Watchdog"
1169 This is a driver for the Mixcom hardware watchdog cards. This
1170 watchdog simply watches your kernel to make sure it doesn't freeze,
1171 and if it does, it reboots your computer after a certain amount of
1174 To compile this driver as a module, choose M here: the
1175 module will be called mixcomwd.
1177 Most people will say N.
1180 tristate "WDT Watchdog timer"
1183 If you have a WDT500P or WDT501P watchdog board, say Y here,
1184 otherwise N. It is not possible to probe for this board, which means
1185 that you have to inform the kernel about the IO port and IRQ that
1186 is needed (you can do this via the io and irq parameters)
1188 To compile this driver as a module, choose M here: the
1189 module will be called wdt.
1192 # PCI-based Watchdog Cards
1195 comment "PCI-based Watchdog Cards"
1198 config PCIPCWATCHDOG
1199 tristate "Berkshire Products PCI-PC Watchdog"
1202 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1203 This card simply watches your kernel to make sure it doesn't freeze,
1204 and if it does, it reboots your computer after a certain amount of
1205 time. The card can also monitor the internal temperature of the PC.
1206 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1208 To compile this driver as a module, choose M here: the
1209 module will be called pcwd_pci.
1211 Most people will say N.
1214 tristate "PCI-WDT500/501 Watchdog timer"
1217 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1219 If you have a PCI-WDT501 watchdog board then you can enable the
1220 temperature sensor by setting the type parameter to 501.
1222 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1223 can do this via the tachometer parameter. Only do this if you have a
1224 fan tachometer actually set up.
1226 To compile this driver as a module, choose M here: the
1227 module will be called wdt_pci.
1230 # USB-based Watchdog Cards
1233 comment "USB-based Watchdog Cards"
1236 config USBPCWATCHDOG
1237 tristate "Berkshire Products USB-PC Watchdog"
1240 This is the driver for the Berkshire Products USB-PC Watchdog card.
1241 This card simply watches your kernel to make sure it doesn't freeze,
1242 and if it does, it reboots your computer after a certain amount of
1243 time. The card can also monitor the internal temperature of the PC.
1244 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1246 To compile this driver as a module, choose M here: the
1247 module will be called pcwd_usb.
1249 Most people will say N.