3 # Watchdog device configuration
7 bool "Watchdog Timer Support"
9 If you say Y here (and to one of the following options) and create a
10 character special file /dev/watchdog with major number 10 and minor
11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12 subsequently opening the file and then failing to write to it for
13 longer than 1 minute will result in rebooting the machine. This
14 could be useful for a networked machine that needs to come back
15 on-line as fast as possible after a lock-up. There's both a watchdog
16 implementation entirely in software (which can sometimes fail to
17 reboot the machine) and a driver for hardware watchdog boards, which
18 are more robust and can also keep track of the temperature inside
19 your computer. For details, read
20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
22 The watchdog is usually used together with the watchdog daemon
23 which is available from
24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25 also monitor NFS connections and can reboot the machine when the process
33 bool "WatchDog Timer Driver Core"
35 Say Y here if you want to use the new watchdog timer driver core.
36 This driver provides a framework for all watchdog timer drivers
37 and gives them the /dev/watchdog interface (and later also the
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
43 The default watchdog behaviour (which you get if you say N here) is
44 to stop the timer if the process managing it closes the file
45 /dev/watchdog. It's always remotely possible that this process might
46 get killed. If you say Y here, the watchdog cannot be stopped once
49 config WATCHDOG_HANDLE_BOOT_ENABLED
50 bool "Update boot-enabled watchdog until userspace takes over"
53 The default watchdog behaviour (which you get if you say Y here) is
54 to ping watchdog devices that were enabled before the driver has
55 been loaded until control is taken over from userspace using the
56 /dev/watchdog file. If you say N here, the kernel will not update
57 the watchdog on its own. Thus if your userspace does not start fast
58 enough your device will reboot.
61 bool "Read different watchdog information through sysfs"
63 Say Y here if you want to enable watchdog device status read through
67 # General Watchdog drivers
70 comment "Watchdog Device Drivers"
72 # Architecture Independent
75 tristate "Software watchdog"
78 A software monitoring watchdog. This will fail to reboot your system
79 from some situations that the hardware watchdog will recover
80 from. Equally it's a lot cheaper to install.
82 To compile this driver as a module, choose M here: the
83 module will be called softdog.
85 config SOFT_WATCHDOG_PRETIMEOUT
86 bool "Software watchdog pretimeout governor support"
87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
89 Enable this if you want to use pretimeout governors with the software
90 watchdog. Be aware that governors might affect the watchdog because it
91 is purely software, e.g. the panic governor will stall it!
93 config DA9052_WATCHDOG
94 tristate "Dialog DA9052 Watchdog"
95 depends on PMIC_DA9052 || COMPILE_TEST
98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
101 Say Y here to include support for the DA9052 watchdog.
102 Alternatively say M to compile the driver as a module,
103 which will be called da9052_wdt.
105 config DA9055_WATCHDOG
106 tristate "Dialog Semiconductor DA9055 Watchdog"
107 depends on MFD_DA9055 || COMPILE_TEST
110 If you say yes here you get support for watchdog on the Dialog
111 Semiconductor DA9055 PMIC.
113 This driver can also be built as a module. If so, the module
114 will be called da9055_wdt.
116 config DA9063_WATCHDOG
117 tristate "Dialog DA9063 Watchdog"
118 depends on MFD_DA9063 || COMPILE_TEST
121 Support for the watchdog in the DA9063 PMIC.
123 This driver can be built as a module. The module name is da9063_wdt.
125 config DA9062_WATCHDOG
126 tristate "Dialog DA9062/61 Watchdog"
127 depends on MFD_DA9062 || COMPILE_TEST
130 Support for the watchdog in the DA9062 and DA9061 PMICs.
132 This driver can be built as a module. The module name is da9062_wdt.
135 tristate "Watchdog device controlled through GPIO-line"
139 If you say yes here you get support for watchdog device
140 controlled through GPIO-line.
142 config GPIO_WATCHDOG_ARCH_INITCALL
143 bool "Register the watchdog as early as possible"
144 depends on GPIO_WATCHDOG=y
146 In some situations, the default initcall level (module_init)
147 in not early enough in the boot process to avoid the watchdog
149 If you say yes here, the initcall level would be raised to
153 config MENF21BMC_WATCHDOG
154 tristate "MEN 14F021P00 BMC Watchdog"
155 depends on MFD_MENF21BMC || COMPILE_TEST
159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
161 This driver can also be built as a module. If so the module
162 will be called menf21bmc_wdt.
164 config TANGOX_WATCHDOG
165 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
167 depends on ARCH_TANGO || COMPILE_TEST
170 Support for the watchdog in Sigma Designs SMP86xx (tango3)
171 and SMP87xx (tango4) family chips.
173 This driver can be built as a module. The module name is tangox_wdt.
176 tristate "ACPI Watchdog Action Table (WDAT)"
181 This driver adds support for systems with ACPI Watchdog Action
182 Table (WDAT) table. Servers typically have this but it can be
183 found on some desktop machines as well. This driver will take
184 over the native iTCO watchdog driver found on many Intel CPUs.
186 To compile this driver as module, choose M here: the module will
189 config WM831X_WATCHDOG
190 tristate "WM831x watchdog"
191 depends on MFD_WM831X
194 Support for the watchdog in the WM831x AudioPlus PMICs. When
195 the watchdog triggers the system will be reset.
197 config WM8350_WATCHDOG
198 tristate "WM8350 watchdog"
199 depends on MFD_WM8350
202 Support for the watchdog in the WM8350 AudioPlus PMIC. When
203 the watchdog triggers the system will be reset.
205 config XILINX_WATCHDOG
206 tristate "Xilinx Watchdog timer"
210 Watchdog driver for the xps_timebase_wdt ip core.
212 To compile this driver as a module, choose M here: the
213 module will be called of_xilinx_wdt.
215 config ZIIRAVE_WATCHDOG
216 tristate "Zodiac RAVE Watchdog Timer"
220 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
223 To compile this driver as a module, choose M here: the
224 module will be called ziirave_wdt.
226 config RAVE_SP_WATCHDOG
227 tristate "RAVE SP Watchdog timer"
228 depends on RAVE_SP_CORE
229 depends on NVMEM || !NVMEM
232 Support for the watchdog on RAVE SP device.
238 config ARM_SP805_WATCHDOG
239 tristate "ARM SP805 Watchdog"
240 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
243 ARM Primecell SP805 Watchdog timer. This will reboot your system when
244 the timeout is reached.
246 config ARM_SBSA_WATCHDOG
247 tristate "ARM SBSA Generic Watchdog"
249 depends on ARM_ARCH_TIMER
252 ARM SBSA Generic Watchdog has two stage timeouts:
253 the first signal (WS0) is for alerting the system by interrupt,
254 the second one (WS1) is a real hardware reset.
255 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
257 This driver can operate ARM SBSA Generic Watchdog as a single stage
258 or a two stages watchdog, it depends on the module parameter "action".
260 Note: the maximum timeout in the two stages mode is half of that in
261 the single stage mode.
263 To compile this driver as module, choose M here: The module
264 will be called sbsa_gwdt.
266 config ASM9260_WATCHDOG
267 tristate "Alphascale ASM9260 watchdog"
268 depends on MACH_ASM9260 || COMPILE_TEST
271 select RESET_CONTROLLER
273 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
274 system when the timeout is reached.
276 config AT91RM9200_WATCHDOG
277 tristate "AT91RM9200 watchdog"
278 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
280 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
281 system when the timeout is reached.
283 config AT91SAM9X_WATCHDOG
284 tristate "AT91SAM9X / AT91CAP9 watchdog"
285 depends on ARCH_AT91 || COMPILE_TEST
288 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
289 reboot your system when the timeout is reached.
291 config SAMA5D4_WATCHDOG
292 tristate "Atmel SAMA5D4 Watchdog Timer"
293 depends on ARCH_AT91 || COMPILE_TEST
296 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
297 Its Watchdog Timer Mode Register can be written more than once.
298 This will reboot your system when the timeout is reached.
300 config CADENCE_WATCHDOG
301 tristate "Cadence Watchdog Timer"
305 Say Y here if you want to include support for the watchdog
306 timer in the Xilinx Zynq.
308 config 21285_WATCHDOG
309 tristate "DC21285 watchdog"
310 depends on FOOTBRIDGE
312 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
313 here if you wish to use this. Alternatively say M to compile the
314 driver as a module, which will be called wdt285.
316 This driver does not work on all machines. In particular, early CATS
317 boards have hardware problems that will cause the machine to simply
318 lock up if the watchdog fires.
320 "If in doubt, leave it out" - say N.
323 tristate "NetWinder WB83C977 watchdog"
324 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
326 Say Y here to include support for the WB977 watchdog included in
327 NetWinder machines. Alternatively say M to compile the driver as
328 a module, which will be called wdt977.
330 Not sure? It's safe to say N.
332 config FTWDT010_WATCHDOG
333 tristate "Faraday Technology FTWDT010 watchdog"
334 depends on ARM || COMPILE_TEST
338 Say Y here if to include support for the Faraday Technology
339 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
342 To compile this driver as a module, choose M here: the
343 module will be called ftwdt010_wdt.
345 config IXP4XX_WATCHDOG
346 tristate "IXP4xx Watchdog"
347 depends on ARCH_IXP4XX
349 Say Y here if to include support for the watchdog timer
350 in the Intel IXP4xx network processors. This driver can
351 be built as a module by choosing M. The module will
352 be called ixp4xx_wdt.
354 Note: The internal IXP4xx watchdog does a soft CPU reset
355 which doesn't reset any peripherals. There are circumstances
356 where the watchdog will fail to reset the board correctly
357 (e.g., if the boot ROM is in an unreadable state).
359 Say N if you are unsure.
361 config KS8695_WATCHDOG
362 tristate "KS8695 watchdog"
363 depends on ARCH_KS8695
365 Watchdog timer embedded into KS8695 processor. This will reboot your
366 system when the timeout is reached.
368 config HAVE_S3C2410_WATCHDOG
371 This will include watchdog timer support for Samsung SoCs. If
372 you want to include watchdog support for any machine, kindly
373 select this in the respective mach-XXXX/Kconfig file.
375 config S3C2410_WATCHDOG
376 tristate "S3C2410 Watchdog"
377 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
379 select MFD_SYSCON if ARCH_EXYNOS
381 Watchdog timer block in the Samsung SoCs. This will reboot
382 the system when the timer expires with the watchdog enabled.
384 The driver is limited by the speed of the system's PCLK
385 signal, so with reasonably fast systems (PCLK around 50-66MHz)
386 then watchdog intervals of over approximately 20seconds are
389 The driver can be built as a module by choosing M, and will
390 be called s3c2410_wdt
392 config SA1100_WATCHDOG
393 tristate "SA1100/PXA2xx watchdog"
394 depends on ARCH_SA1100 || ARCH_PXA
396 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
397 reboot your system when timeout is reached.
399 NOTE: once enabled, this timer cannot be disabled.
401 To compile this driver as a module, choose M here: the
402 module will be called sa1100_wdt.
405 tristate "Synopsys DesignWare watchdog"
409 Say Y here if to include support for the Synopsys DesignWare
410 watchdog timer found in many chips.
411 To compile this driver as a module, choose M here: the
412 module will be called dw_wdt.
414 config EP93XX_WATCHDOG
415 tristate "EP93xx Watchdog"
416 depends on ARCH_EP93XX || COMPILE_TEST
419 Say Y here if to include support for the watchdog timer
420 embedded in the Cirrus Logic EP93xx family of devices.
422 To compile this driver as a module, choose M here: the
423 module will be called ep93xx_wdt.
426 tristate "OMAP Watchdog"
427 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
430 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
431 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
433 config PNX4008_WATCHDOG
434 tristate "LPC32XX Watchdog"
435 depends on ARCH_LPC32XX
438 Say Y here if to include support for the watchdog timer
439 in the LPC32XX processor.
440 This driver can be built as a module by choosing M. The module
441 will be called pnx4008_wdt.
443 Say N if you are unsure.
446 tristate "IOP Watchdog"
447 depends on ARCH_IOP13XX
448 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
450 Say Y here if to include support for the watchdog timer
451 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
452 be built as a module by choosing M. The module will
455 Note: The IOP13XX watchdog does an Internal Bus Reset which will
456 affect both cores and the peripherals of the IOP. The ATU-X
457 and/or ATUe configuration registers will remain intact, but if
458 operating as an Root Complex and/or Central Resource, the PCI-X
459 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
461 config DAVINCI_WATCHDOG
462 tristate "DaVinci watchdog"
463 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
466 Say Y here if to include support for the watchdog timer
467 in the DaVinci DM644x/DM646x or Keystone processors.
468 To compile this driver as a module, choose M here: the
469 module will be called davinci_wdt.
471 NOTE: once enabled, this timer cannot be disabled.
472 Say N if you are unsure.
474 config ORION_WATCHDOG
475 tristate "Orion watchdog"
476 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
480 Say Y here if to include support for the watchdog timer
481 in the Marvell Orion5x and Kirkwood ARM SoCs.
482 To compile this driver as a module, choose M here: the
483 module will be called orion_wdt.
485 config RN5T618_WATCHDOG
486 tristate "Ricoh RN5T618 watchdog"
487 depends on MFD_RN5T618 || COMPILE_TEST
490 If you say yes here you get support for watchdog on the Ricoh
493 This driver can also be built as a module. If so, the module
494 will be called rn5t618_wdt.
496 config SUNXI_WATCHDOG
497 tristate "Allwinner SoCs watchdog support"
498 depends on ARCH_SUNXI || COMPILE_TEST
501 Say Y here to include support for the watchdog timer
503 To compile this driver as a module, choose M here: the
504 module will be called sunxi_wdt.
506 config COH901327_WATCHDOG
507 bool "ST-Ericsson COH 901 327 watchdog"
508 depends on ARCH_U300 || (ARM && COMPILE_TEST)
509 default y if MACH_U300
512 Say Y here to include Watchdog timer support for the
513 watchdog embedded into the ST-Ericsson U300 series platforms.
514 This watchdog is used to reset the system and thus cannot be
515 compiled as a module.
517 config TWL4030_WATCHDOG
518 tristate "TWL4030 Watchdog"
519 depends on TWL4030_CORE
522 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
523 watchdog timer support for TWL4030 chips.
525 config STMP3XXX_RTC_WATCHDOG
526 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
527 depends on RTC_DRV_STMP || COMPILE_TEST
530 Say Y here to include support for the watchdog timer inside
531 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
532 To compile this driver as a module, choose M here: the
533 module will be called stmp3xxx_rtc_wdt.
535 config NUC900_WATCHDOG
536 tristate "Nuvoton NUC900 watchdog"
537 depends on ARCH_W90X900 || COMPILE_TEST
539 Say Y here if to include support for the watchdog timer
540 for the Nuvoton NUC900 series SoCs.
541 To compile this driver as a module, choose M here: the
542 module will be called nuc900_wdt.
544 config TS4800_WATCHDOG
545 tristate "TS-4800 Watchdog"
546 depends on HAS_IOMEM && OF
547 depends on SOC_IMX51 || COMPILE_TEST
551 Technologic Systems TS-4800 has watchdog timer implemented in
552 an external FPGA. Say Y here if you want to support for the
553 watchdog timer on TS-4800 board.
555 config TS72XX_WATCHDOG
556 tristate "TS-72XX SBC Watchdog"
557 depends on MACH_TS72XX || COMPILE_TEST
559 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
560 watchdog timer implemented in a external CPLD chip. Say Y here
561 if you want to support for the watchdog timer on TS-72XX boards.
563 To compile this driver as a module, choose M here: the
564 module will be called ts72xx_wdt.
566 config MAX63XX_WATCHDOG
567 tristate "Max63xx watchdog"
571 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
573 config MAX77620_WATCHDOG
574 tristate "Maxim Max77620 Watchdog Timer"
575 depends on MFD_MAX77620 || COMPILE_TEST
577 This is the driver for the Max77620 watchdog timer.
578 Say 'Y' here to enable the watchdog timer support for
579 MAX77620 chips. To compile this driver as a module,
580 choose M here: the module will be called max77620_wdt.
583 tristate "IMX2+ Watchdog"
584 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
588 This is the driver for the hardware watchdog
589 on the Freescale IMX2 and later processors.
590 If you have one of these processors and wish to have
591 watchdog support enabled, say Y, otherwise say N.
593 To compile this driver as a module, choose M here: the
594 module will be called imx2_wdt.
596 config UX500_WATCHDOG
597 tristate "ST-Ericsson Ux500 watchdog"
598 depends on MFD_DB8500_PRCMU
602 Say Y here to include Watchdog timer support for the watchdog
603 existing in the prcmu of ST-Ericsson Ux500 series platforms.
605 To compile this driver as a module, choose M here: the
606 module will be called ux500_wdt.
609 tristate "Retu watchdog"
613 Retu watchdog driver for Nokia Internet Tablets (770, N800,
614 N810). At least on N800 the watchdog cannot be disabled, so
615 this driver is essential and you should enable it.
617 To compile this driver as a module, choose M here: the
618 module will be called retu_wdt.
621 tristate "MOXART watchdog"
622 depends on ARCH_MOXART || COMPILE_TEST
624 Say Y here to include Watchdog timer support for the watchdog
625 existing on the MOXA ART SoC series platforms.
627 To compile this driver as a module, choose M here: the
628 module will be called moxart_wdt.
630 config SIRFSOC_WATCHDOG
631 tristate "SiRFSOC watchdog"
632 depends on ARCH_SIRF || COMPILE_TEST
636 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
637 the watchdog triggers the system will be reset.
639 config ST_LPC_WATCHDOG
640 tristate "STMicroelectronics LPC Watchdog"
641 depends on ARCH_STI || COMPILE_TEST
645 Say Y here to include STMicroelectronics Low Power Controller
646 (LPC) based Watchdog timer support.
648 To compile this driver as a module, choose M here: the
649 module will be called st_lpc_wdt.
651 config TEGRA_WATCHDOG
652 tristate "Tegra watchdog"
653 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
656 Say Y here to include support for the watchdog timer
657 embedded in NVIDIA Tegra SoCs.
659 To compile this driver as a module, choose M here: the
660 module will be called tegra_wdt.
663 tristate "QCOM watchdog"
665 depends on ARCH_QCOM || COMPILE_TEST
668 Say Y here to include Watchdog timer support for the watchdog found
669 on QCOM chipsets. Currently supported targets are the MSM8960,
670 APQ8064, and IPQ8064.
672 To compile this driver as a module, choose M here: the
673 module will be called qcom_wdt.
675 config MESON_GXBB_WATCHDOG
676 tristate "Amlogic Meson GXBB SoCs watchdog support"
677 depends on ARCH_MESON || COMPILE_TEST
680 Say Y here to include support for the watchdog timer
681 in Amlogic Meson GXBB SoCs.
682 To compile this driver as a module, choose M here: the
683 module will be called meson_gxbb_wdt.
685 config MESON_WATCHDOG
686 tristate "Amlogic Meson SoCs watchdog support"
687 depends on ARCH_MESON || COMPILE_TEST
690 Say Y here to include support for the watchdog timer
691 in Amlogic Meson SoCs.
692 To compile this driver as a module, choose M here: the
693 module will be called meson_wdt.
695 config MEDIATEK_WATCHDOG
696 tristate "Mediatek SoCs watchdog support"
697 depends on ARCH_MEDIATEK || COMPILE_TEST
700 Say Y here to include support for the watchdog timer
702 To compile this driver as a module, choose M here: the
703 module will be called mtk_wdt.
705 config DIGICOLOR_WATCHDOG
706 tristate "Conexant Digicolor SoCs watchdog support"
707 depends on ARCH_DIGICOLOR || COMPILE_TEST
710 Say Y here to include support for the watchdog timer
711 in Conexant Digicolor SoCs.
712 To compile this driver as a module, choose M here: the
713 module will be called digicolor_wdt.
715 config LPC18XX_WATCHDOG
716 tristate "LPC18xx/43xx Watchdog"
717 depends on ARCH_LPC18XX || COMPILE_TEST
721 Say Y here if to include support for the watchdog timer
722 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
724 To compile this driver as a module, choose M here: the
725 module will be called lpc18xx_wdt.
727 config ATLAS7_WATCHDOG
728 tristate "CSRatlas7 watchdog"
729 depends on ARCH_ATLAS7 || COMPILE_TEST
731 Say Y here to include Watchdog timer support for the watchdog
732 existing on the CSRatlas7 series platforms.
734 To compile this driver as a module, choose M here: the
735 module will be called atlas7_wdt.
738 tristate "Renesas WDT Watchdog"
739 depends on ARCH_RENESAS || COMPILE_TEST
742 This driver adds watchdog support for the integrated watchdogs in the
743 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
745 config RENESAS_RZAWDT
746 tristate "Renesas RZ/A WDT Watchdog"
747 depends on ARCH_RENESAS || COMPILE_TEST
750 This driver adds watchdog support for the integrated watchdogs in the
751 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
753 config ASPEED_WATCHDOG
754 tristate "Aspeed BMC watchdog support"
755 depends on ARCH_ASPEED || COMPILE_TEST
758 Say Y here to include support for the watchdog timer
761 This driver is required to reboot the SoC.
763 To compile this driver as a module, choose M here: the
764 module will be called aspeed_wdt.
766 config ZX2967_WATCHDOG
767 tristate "ZTE zx2967 SoCs watchdog support"
771 Say Y here to include support for the watchdog timer
773 To compile this driver as a module, choose M here: the
774 module will be called zx2967_wdt.
776 config STM32_WATCHDOG
777 tristate "STM32 Independent WatchDoG (IWDG) support"
778 depends on ARCH_STM32
782 Say Y here to include support for the watchdog timer
785 To compile this driver as a module, choose M here: the
786 module will be called stm32_iwdg.
788 config UNIPHIER_WATCHDOG
789 tristate "UniPhier watchdog support"
790 depends on ARCH_UNIPHIER || COMPILE_TEST
791 depends on OF && MFD_SYSCON
794 Say Y here to include support watchdog timer embedded
795 into the UniPhier system.
797 To compile this driver as a module, choose M here: the
798 module will be called uniphier_wdt.
800 config RTD119X_WATCHDOG
801 bool "Realtek RTD119x/RTD129x watchdog support"
802 depends on ARCH_REALTEK || COMPILE_TEST
807 Say Y here to include support for the watchdog timer in
808 Realtek RTD1295 SoCs.
811 tristate "Spreadtrum watchdog support"
812 depends on ARCH_SPRD || COMPILE_TEST
815 Say Y here to include watchdog timer supported
816 by Spreadtrum system.
818 # X86 (i386 + ia64 + x86_64) Architecture
821 tristate "Acquire SBC Watchdog Timer"
824 This is the driver for the hardware watchdog on Single Board
825 Computers produced by Acquire Inc (and others). This watchdog
826 simply watches your kernel to make sure it doesn't freeze, and if
827 it does, it reboots your computer after a certain amount of time.
829 To compile this driver as a module, choose M here: the
830 module will be called acquirewdt.
832 Most people will say N.
835 tristate "Advantech SBC Watchdog Timer"
838 If you are configuring a Linux kernel for the Advantech single-board
839 computer, say `Y' here to support its built-in watchdog timer
840 feature. More information can be found at
841 <http://www.advantech.com.tw/products/>
844 tristate "ALi M1535 PMU Watchdog Timer"
845 depends on X86 && PCI
847 This is the driver for the hardware watchdog on the ALi M1535 PMU.
849 To compile this driver as a module, choose M here: the
850 module will be called alim1535_wdt.
852 Most people will say N.
855 tristate "ALi M7101 PMU Computer Watchdog"
858 This is the driver for the hardware watchdog on the ALi M7101 PMU
859 as used in the x86 Cobalt servers and also found in some
860 SPARC Netra servers too.
862 To compile this driver as a module, choose M here: the
863 module will be called alim7101_wdt.
865 Most people will say N.
868 tristate "WinSystems EBC-C384 Watchdog Timer"
873 Enables watchdog timer support for the watchdog timer on the
874 WinSystems EBC-C384 motherboard. The timeout may be configured via
875 the timeout module parameter.
878 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
881 This is the driver for the hardware watchdog on the Fintek F71808E,
882 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
883 Super I/O controllers.
885 You can compile this driver directly into the kernel, or use
886 it as a module. The module will be called f71808e_wdt.
889 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
890 depends on X86 && PCI
893 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
894 (Total Cost of Ownership) timer is a watchdog timer that will reboot
895 the machine after its expiration. The expiration time can be
896 configured with the "heartbeat" parameter.
898 To compile this driver as a module, choose M here: the
899 module will be called sp5100_tco.
902 tristate "AMD Geode CS5535/CS5536 Watchdog"
903 depends on CS5535_MFGPT
905 This driver enables a watchdog capability built into the
906 CS5535/CS5536 companion chips for the AMD Geode GX and LX
907 processors. This watchdog watches your kernel to make sure
908 it doesn't freeze, and if it does, it reboots your computer after
909 a certain amount of time.
911 You can compile this driver directly into the kernel, or use
912 it as a module. The module will be called geodewdt.
915 tristate "AMD Elan SC520 processor Watchdog"
916 depends on MELAN || COMPILE_TEST
918 This is the driver for the hardware watchdog built in to the
919 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
920 This watchdog simply watches your kernel to make sure it doesn't
921 freeze, and if it does, it reboots your computer after a certain
924 You can compile this driver directly into the kernel, or use
925 it as a module. The module will be called sc520_wdt.
927 config SBC_FITPC2_WATCHDOG
928 tristate "Compulab SBC-FITPC2 watchdog"
931 This is the driver for the built-in watchdog timer on the fit-PC2,
932 fit-PC2i, CM-iAM single-board computers made by Compulab.
934 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
935 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
937 Entering BIOS setup temporary disables watchdog operation regardless to current state,
938 so system will not be restarted while user in BIOS setup.
940 Once watchdog was enabled the system will be restarted every
941 "Watchdog Timer Value" period, so to prevent it user can restart or
942 disable the watchdog.
944 To compile this driver as a module, choose M here: the
945 module will be called sbc_fitpc2_wdt.
947 Most people will say N.
950 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
953 Enable support for the watchdog timer on the Eurotech CPU-1220 and
954 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
955 information are at <http://www.eurotech.it/>.
958 tristate "IB700 SBC Watchdog Timer"
961 This is the driver for the hardware watchdog on the IB700 Single
962 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
963 simply watches your kernel to make sure it doesn't freeze, and if
964 it does, it reboots your computer after a certain amount of time.
966 This driver is like the WDT501 driver but for slightly different hardware.
968 To compile this driver as a module, choose M here: the
969 module will be called ib700wdt.
971 Most people will say N.
974 tristate "IBM Automatic Server Restart"
977 This is the driver for the IBM Automatic Server Restart watchdog
978 timer built-in into some eServer xSeries machines.
980 To compile this driver as a module, choose M here: the
981 module will be called ibmasr.
984 tristate "ICP Single Board Computer Watchdog Timer"
987 This is a driver for the hardware watchdog on the ICP Single
988 Board Computer. This driver is working on (at least) the following
989 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
991 To compile this driver as a module, choose M here: the
992 module will be called wafer5823wdt.
995 tristate "Intel 6300ESB Timer/Watchdog"
999 Hardware driver for the watchdog timer built into the Intel
1000 6300ESB controller hub.
1002 To compile this driver as a module, choose M here: the
1003 module will be called i6300esb.
1006 tristate "Intel Atom E6xx Watchdog"
1007 depends on X86 && PCI
1008 select WATCHDOG_CORE
1012 Hardware driver for the watchdog timer built into the Intel
1013 Atom E6XX (TunnelCreek) processor.
1015 To compile this driver as a module, choose M here: the
1016 module will be called ie6xx_wdt.
1018 config INTEL_SCU_WATCHDOG
1019 bool "Intel SCU Watchdog for Mobile Platforms"
1020 depends on X86_INTEL_MID
1022 Hardware driver for the watchdog time built into the Intel SCU
1023 for Intel Mobile Platforms.
1025 To compile this driver as a module, choose M here.
1027 config INTEL_MID_WATCHDOG
1028 tristate "Intel MID Watchdog Timer"
1029 depends on X86_INTEL_MID
1030 select WATCHDOG_CORE
1032 Watchdog timer driver built into the Intel SCU for Intel MID
1035 This driver currently supports only the watchdog evolution
1036 implementation in SCU, available for Merrifield generation.
1038 To compile this driver as a module, choose M here.
1041 tristate "Intel TCO Timer/Watchdog"
1042 depends on (X86 || IA64) && PCI
1043 select WATCHDOG_CORE
1044 depends on I2C || I2C=n
1045 select LPC_ICH if !EXPERT
1046 select I2C_I801 if !EXPERT && I2C
1048 Hardware driver for the intel TCO timer based watchdog devices.
1049 These drivers are included in the Intel 82801 I/O Controller
1050 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1053 The TCO (Total Cost of Ownership) timer is a watchdog timer
1054 that will reboot the machine after its second expiration. The
1055 expiration time can be configured with the "heartbeat" parameter.
1057 On some motherboards the driver may fail to reset the chipset's
1058 NO_REBOOT flag which prevents the watchdog from rebooting the
1059 machine. If this is the case you will get a kernel message like
1060 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1062 To compile this driver as a module, choose M here: the
1063 module will be called iTCO_wdt.
1065 config ITCO_VENDOR_SUPPORT
1066 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1069 Add vendor specific support to the intel TCO timer based watchdog
1070 devices. At this moment we only have additional support for some
1071 SuperMicro Inc. motherboards.
1074 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1077 This is the driver for the built-in watchdog timer on the IT8712F
1078 Super I/0 chipset used on many motherboards.
1080 If the driver does not work, then make sure that the game port in
1081 the BIOS is enabled.
1083 To compile this driver as a module, choose M here: the
1084 module will be called it8712f_wdt.
1087 tristate "IT87 Watchdog Timer"
1089 select WATCHDOG_CORE
1091 This is the driver for the hardware watchdog on the ITE IT8607,
1092 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1093 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1094 IT8783 Super I/O chips.
1096 This watchdog simply watches your kernel to make sure it doesn't
1097 freeze, and if it does, it reboots your computer after a certain
1100 To compile this driver as a module, choose M here: the module will
1104 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1105 depends on X86 && PCI
1107 A software monitoring watchdog and NMI sourcing driver. This driver
1108 will detect lockups and provide a stack trace. This is a driver that
1109 will only load on an HP ProLiant system with a minimum of iLO2 support.
1110 To compile this driver as a module, choose M here: the module will be
1114 tristate "Kontron COM Watchdog Timer"
1115 depends on MFD_KEMPLD
1116 select WATCHDOG_CORE
1118 Support for the PLD watchdog on some Kontron ETX and COMexpress
1119 (ETXexpress) modules
1121 This driver can also be built as a module. If so, the module will be
1124 config HPWDT_NMI_DECODING
1125 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1126 depends on HP_WATCHDOG
1129 When an NMI occurs this feature will make the necessary BIOS calls to
1130 log the cause of the NMI.
1133 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1136 This is a driver for National Semiconductor PC87307/PC97307 hardware
1137 watchdog cards as found on the SC1200. This watchdog is mainly used
1138 for power management purposes and can be used to power down the device
1139 during inactivity periods (includes interrupt activity monitoring).
1141 To compile this driver as a module, choose M here: the
1142 module will be called sc1200wdt.
1144 Most people will say N.
1147 tristate "National Semiconductor SCx200 Watchdog"
1148 depends on SCx200 && PCI
1150 Enable the built-in watchdog timer support on the National
1151 Semiconductor SCx200 processors.
1153 If compiled as a module, it will be called scx200_wdt.
1156 tristate "NS PC87413 watchdog"
1159 This is the driver for the hardware watchdog on the PC87413 chipset
1160 This watchdog simply watches your kernel to make sure it doesn't
1161 freeze, and if it does, it reboots your computer after a certain
1164 To compile this driver as a module, choose M here: the
1165 module will be called pc87413_wdt.
1167 Most people will say N.
1170 tristate "nVidia TCO Timer/Watchdog"
1171 depends on X86 && PCI
1173 Hardware driver for the TCO timer built into the nVidia Hub family
1174 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1175 watchdog timer that will reboot the machine after its second
1176 expiration. The expiration time can be configured with the
1177 "heartbeat" parameter.
1179 On some motherboards the driver may fail to reset the chipset's
1180 NO_REBOOT flag which prevents the watchdog from rebooting the
1181 machine. If this is the case you will get a kernel message like
1182 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1184 To compile this driver as a module, choose M here: the
1185 module will be called nv_tco.
1188 tristate "RDC R-321x SoC watchdog"
1189 depends on X86_RDC321X || COMPILE_TEST
1192 This is the driver for the built in hardware watchdog
1193 in the RDC R-321x SoC.
1195 To compile this driver as a module, choose M here: the
1196 module will be called rdc321x_wdt.
1199 tristate "SBC-60XX Watchdog Timer"
1202 This driver can be used with the watchdog timer found on some
1203 single board computers, namely the 6010 PII based computer.
1204 It may well work with other cards. It reads port 0x443 to enable
1205 and re-set the watchdog timer, and reads port 0x45 to disable
1206 the watchdog. If you have a card that behave in similar ways,
1207 you can probably make this driver work with your card as well.
1209 You can compile this driver directly into the kernel, or use
1210 it as a module. The module will be called sbc60xxwdt.
1213 tristate "SBC8360 Watchdog Timer"
1217 This is the driver for the hardware watchdog on the SBC8360 Single
1218 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1220 To compile this driver as a module, choose M here: the
1221 module will be called sbc8360.
1223 Most people will say N.
1226 tristate "SBC Nano 7240 Watchdog Timer"
1227 depends on X86_32 && !UML
1229 This is the driver for the hardware watchdog found on the IEI
1230 single board computers EPIC Nano 7240 (and likely others). This
1231 watchdog simply watches your kernel to make sure it doesn't freeze,
1232 and if it does, it reboots your computer after a certain amount of
1235 To compile this driver as a module, choose M here: the
1236 module will be called sbc7240_wdt.
1239 tristate "SMA CPU5 Watchdog"
1243 To compile this driver as a module, choose M here: the
1244 module will be called cpu5wdt.
1246 config SMSC_SCH311X_WDT
1247 tristate "SMSC SCH311X Watchdog Timer"
1250 This is the driver for the hardware watchdog timer on the
1251 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1252 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1255 To compile this driver as a module, choose M here: the
1256 module will be called sch311x_wdt.
1258 config SMSC37B787_WDT
1259 tristate "Winbond SMsC37B787 Watchdog Timer"
1262 This is the driver for the hardware watchdog component on the
1263 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1264 from Vision Systems and maybe others.
1266 This watchdog simply watches your kernel to make sure it doesn't
1267 freeze, and if it does, it reboots your computer after a certain
1270 Usually a userspace daemon will notify the kernel WDT driver that
1271 userspace is still alive, at regular intervals.
1273 To compile this driver as a module, choose M here: the
1274 module will be called smsc37b787_wdt.
1276 Most people will say N.
1279 tristate "VIA Watchdog Timer"
1280 depends on X86 && PCI
1281 select WATCHDOG_CORE
1283 This is the driver for the hardware watchdog timer on VIA
1284 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1286 To compile this driver as a module, choose M here; the module
1287 will be called via_wdt.
1289 Most people will say N.
1292 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1294 select WATCHDOG_CORE
1296 This is the driver for the hardware watchdog on the following
1298 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1311 This watchdog simply watches your kernel to make sure it doesn't
1312 freeze, and if it does, it reboots your computer after a certain
1315 To compile this driver as a module, choose M here: the
1316 module will be called w83627hf_wdt.
1318 Most people will say N.
1321 tristate "W83877F (EMACS) Watchdog Timer"
1324 This is the driver for the hardware watchdog on the W83877F chipset
1325 as used in EMACS PC-104 motherboards (and likely others). This
1326 watchdog simply watches your kernel to make sure it doesn't freeze,
1327 and if it does, it reboots your computer after a certain amount of
1330 To compile this driver as a module, choose M here: the
1331 module will be called w83877f_wdt.
1333 Most people will say N.
1336 tristate "W83977F (PCM-5335) Watchdog Timer"
1339 This is the driver for the hardware watchdog on the W83977F I/O chip
1340 as used in AAEON's PCM-5335 SBC (and likely others). This
1341 watchdog simply watches your kernel to make sure it doesn't freeze,
1342 and if it does, it reboots your computer after a certain amount of
1345 To compile this driver as a module, choose M here: the
1346 module will be called w83977f_wdt.
1349 tristate "ZF MachZ Watchdog"
1352 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1353 N. This is the driver for the watchdog timer built-in on that
1354 processor using ZF-Logic interface. This watchdog simply watches
1355 your kernel to make sure it doesn't freeze, and if it does, it
1356 reboots your computer after a certain amount of time.
1358 To compile this driver as a module, choose M here: the
1359 module will be called machzwd.
1361 config SBC_EPX_C3_WATCHDOG
1362 tristate "Winsystems SBC EPX-C3 watchdog"
1365 This is the driver for the built-in watchdog timer on the EPX-C3
1366 Single-board computer made by Winsystems, Inc.
1368 *Note*: This hardware watchdog is not probeable and thus there
1369 is no way to know if writing to its IO address will corrupt
1370 your system or have any real effect. The only way to be sure
1371 that this driver does what you want is to make sure you
1372 are running it on an EPX-C3 from Winsystems with the watchdog
1373 timer at IO address 0x1ee and 0x1ef. It will write to both those
1374 IO ports. Basically, the assumption is made that if you compile
1375 this driver into your kernel and/or load it as a module, that you
1376 know what you are doing and that you are in fact running on an
1379 To compile this driver as a module, choose M here: the
1380 module will be called sbc_epx_c3.
1382 config INTEL_MEI_WDT
1383 tristate "Intel MEI iAMT Watchdog"
1384 depends on INTEL_MEI && X86
1385 select WATCHDOG_CORE
1387 A device driver for the Intel MEI iAMT watchdog.
1389 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1390 Whenever the OS hangs or crashes, iAMT will send an event
1391 to any subscriber to this event. The watchdog doesn't reset the
1394 To compile this driver as a module, choose M here:
1395 the module will be called mei_wdt.
1398 tristate "NI 903x/913x Watchdog"
1399 depends on X86 && ACPI
1400 select WATCHDOG_CORE
1402 This is the driver for the watchdog timer on the National Instruments
1403 903x/913x real-time controllers.
1405 To compile this driver as a module, choose M here: the module will be
1409 tristate "NIC7018 Watchdog"
1410 depends on X86 && ACPI
1411 select WATCHDOG_CORE
1413 Support for National Instruments NIC7018 Watchdog.
1415 To compile this driver as a module, choose M here: the module will be
1420 config M54xx_WATCHDOG
1421 tristate "MCF54xx watchdog support"
1424 To compile this driver as a module, choose M here: the
1425 module will be called m54xx_wdt.
1427 # MicroBlaze Architecture
1432 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1433 depends on ATH79 || (ARM && COMPILE_TEST)
1435 Hardware driver for the built-in watchdog timer on the Atheros
1436 AR71XX/AR724X/AR913X SoCs.
1439 tristate "Broadcom BCM47xx Watchdog Timer"
1440 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1441 select WATCHDOG_CORE
1443 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1446 tristate "IDT RC32434 SoC Watchdog Timer"
1447 depends on MIKROTIK_RB532
1449 Hardware driver for the IDT RC32434 SoC built-in
1452 To compile this driver as a module, choose M here: the
1453 module will be called rc32434_wdt.
1456 tristate "Indy/I2 Hardware Watchdog"
1457 depends on SGI_HAS_INDYDOG
1459 Hardware driver for the Indy's/I2's watchdog. This is a
1460 watchdog timer that will reboot the machine after a 60 second
1461 timer expired and no process has written to /dev/watchdog during
1465 tristate "Ingenic jz4740 SoC hardware watchdog"
1466 depends on MACH_JZ4740 || MACH_JZ4780
1467 select WATCHDOG_CORE
1469 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1472 tristate "MTX-1 Hardware Watchdog"
1473 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1475 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1476 will reboot the machine after a 100 seconds timer expired.
1479 tristate "PNX833x Hardware Watchdog"
1480 depends on SOC_PNX8335
1483 Hardware driver for the PNX833x's watchdog. This is a
1484 watchdog timer that will reboot the machine after a programmable
1485 timer has expired and no process has written to /dev/watchdog during
1489 tristate "Sibyte SoC hardware watchdog"
1490 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1492 Watchdog driver for the built in watchdog hardware in Sibyte
1493 SoC processors. There are apparently two watchdog timers
1494 on such processors; this driver supports only the first one,
1495 because currently Linux only supports exporting one watchdog
1498 To compile this driver as a loadable module, choose M here.
1499 The module will be called sb_wdog.
1502 tristate "TI AR7 Watchdog Timer"
1503 depends on AR7 || (MIPS && COMPILE_TEST)
1505 Hardware driver for the TI AR7 Watchdog Timer.
1508 tristate "Toshiba TXx9 Watchdog Timer"
1509 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1510 select WATCHDOG_CORE
1512 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1515 tristate "Cavium OCTEON SOC family Watchdog Timer"
1516 depends on CAVIUM_OCTEON_SOC
1518 select WATCHDOG_CORE
1519 select EXPORT_UASM if OCTEON_WDT = m
1521 Hardware driver for OCTEON's on chip watchdog timer.
1522 Enables the watchdog for all cores running Linux. It
1523 installs a NMI handler and pokes the watchdog based on an
1524 interrupt. On first expiration of the watchdog, the
1525 interrupt handler pokes it. The second expiration causes an
1526 NMI that prints a message. The third expiration causes a
1529 When userspace has /dev/watchdog open, no poking is done
1530 from the first interrupt, it is then only poked when the
1534 tristate "Broadcom BCM63xx hardware watchdog"
1537 Watchdog driver for the built in watchdog hardware in Broadcom
1540 To compile this driver as a loadable module, choose M here.
1541 The module will be called bcm63xx_wdt.
1544 tristate "Broadcom BCM2835 hardware watchdog"
1545 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1546 select WATCHDOG_CORE
1548 Watchdog driver for the built in watchdog hardware in Broadcom
1551 To compile this driver as a loadable module, choose M here.
1552 The module will be called bcm2835_wdt.
1555 tristate "BCM Kona Watchdog"
1556 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1557 select WATCHDOG_CORE
1559 Support for the watchdog timer on the following Broadcom BCM281xx
1560 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1563 Say 'Y' or 'M' here to enable the driver. The module will be called
1566 config BCM_KONA_WDT_DEBUG
1567 bool "DEBUGFS support for BCM Kona Watchdog"
1568 depends on BCM_KONA_WDT || COMPILE_TEST
1570 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1571 access to the driver's internal data structures as well as watchdog
1572 timer hardware registres.
1574 If in doubt, say 'N'.
1577 tristate "BCM7038 Watchdog"
1578 select WATCHDOG_CORE
1579 depends on HAS_IOMEM
1580 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1582 Watchdog driver for the built-in hardware in Broadcom 7038 and
1583 later SoCs used in set-top boxes. BCM7038 was made public
1584 during the 2004 CES, and since then, many Broadcom chips use this
1585 watchdog block, including some cable modem chips.
1588 tristate "Imagination Technologies PDC Watchdog Timer"
1589 depends on HAS_IOMEM
1590 depends on MIPS || COMPILE_TEST
1591 select WATCHDOG_CORE
1593 Driver for Imagination Technologies PowerDown Controller
1596 To compile this driver as a loadable module, choose M here.
1597 The module will be called imgpdc_wdt.
1600 tristate "Lantiq SoC watchdog"
1603 Hardware driver for the Lantiq SoC Watchdog Timer.
1605 config LOONGSON1_WDT
1606 tristate "Loongson1 SoC hardware watchdog"
1607 depends on MACH_LOONGSON32
1608 select WATCHDOG_CORE
1610 Hardware driver for the Loongson1 SoC Watchdog Timer.
1613 tristate "Ralink SoC watchdog"
1614 select WATCHDOG_CORE
1617 Hardware driver for the Ralink SoC Watchdog Timer.
1620 tristate "Mediatek SoC watchdog"
1621 select WATCHDOG_CORE
1622 depends on SOC_MT7620 || SOC_MT7621
1624 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1627 tristate "Microchip PIC32 hardware watchdog"
1628 select WATCHDOG_CORE
1629 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1631 Watchdog driver for the built in watchdog hardware in a PIC32.
1633 Configuration bits must be set appropriately for the watchdog to be
1634 controlled by this driver.
1636 To compile this driver as a loadable module, choose M here.
1637 The module will be called pic32-wdt.
1640 tristate "Microchip PIC32 Deadman Timer"
1641 select WATCHDOG_CORE
1642 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1644 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1645 timer is typically be used in misson critical and safety critical
1646 applications, where any single failure of the software functionality
1647 and sequencing must be detected.
1649 To compile this driver as a loadable module, choose M here.
1650 The module will be called pic32-dmt.
1652 # PARISC Architecture
1654 # POWERPC Architecture
1657 tristate "GE Watchdog Timer"
1660 Watchdog timer found in a number of GE single board computers.
1663 bool "MPC52xx Watchdog Timer"
1664 depends on PPC_MPC52xx || COMPILE_TEST
1666 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1669 tristate "MPC8xxx Platform Watchdog Timer"
1670 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1671 select WATCHDOG_CORE
1673 This driver is for a SoC level watchdog that exists on some
1674 Freescale PowerPC processors. So far this driver supports:
1679 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1682 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1683 depends on MV64X60 || COMPILE_TEST
1686 tristate "PIKA FPGA Watchdog"
1687 depends on WARP || (PPC64 && COMPILE_TEST)
1690 This enables the watchdog in the PIKA FPGA. Currently used on
1694 tristate "PowerPC Book-E Watchdog Timer"
1695 depends on BOOKE || 4xx
1696 select WATCHDOG_CORE
1698 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1699 MPC85xx SOCs and the IBM PowerPC 440.
1701 Please see Documentation/watchdog/watchdog-api.txt for
1704 config BOOKE_WDT_DEFAULT_TIMEOUT
1705 int "PowerPC Book-E Watchdog Timer Default Timeout"
1706 depends on BOOKE_WDT
1707 default 38 if PPC_FSL_BOOK3E
1708 range 0 63 if PPC_FSL_BOOK3E
1709 default 3 if !PPC_FSL_BOOK3E
1710 range 0 3 if !PPC_FSL_BOOK3E
1712 Select the default watchdog timer period to be used by the PowerPC
1713 Book-E watchdog driver. A watchdog "event" occurs when the bit
1714 position represented by this number transitions from zero to one.
1716 For Freescale Book-E processors, this is a number between 0 and 63.
1717 For other Book-E processors, this is a number between 0 and 3.
1719 The value can be overridden by the wdt_period command-line parameter.
1722 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1723 select WATCHDOG_CORE
1724 depends on GPIOLIB || COMPILE_TEST
1726 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1728 The driver can also be built as a module. If so, the module will be
1731 If unsure select N here.
1733 # PPC64 Architecture
1735 config WATCHDOG_RTAS
1736 tristate "RTAS watchdog"
1739 This driver adds watchdog support for the RTAS watchdog.
1741 To compile this driver as a module, choose M here. The module
1742 will be called wdrtas.
1746 config DIAG288_WATCHDOG
1747 tristate "System z diag288 Watchdog"
1749 select WATCHDOG_CORE
1751 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1752 provide a virtual watchdog timer to their guest that cause a
1753 user define Control Program command to be executed after a
1755 LPAR provides a very similar interface. This driver handles
1758 To compile this driver as a module, choose M here. The module
1759 will be called diag288_wdt.
1761 # SUPERH (sh + sh64) Architecture
1764 tristate "SuperH Watchdog"
1765 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1766 select WATCHDOG_CORE
1768 This driver adds watchdog support for the integrated watchdog in the
1769 SuperH processors. If you have one of these processors and wish
1770 to have watchdog support enabled, say Y, otherwise say N.
1772 As a side note, saying Y here will automatically boost HZ to 1000
1773 so that the timer has a chance to clear the overflow counter. On
1774 slower systems (such as the SH-2 and SH-3) this will likely yield
1775 some performance issues. As such, the WDT should be avoided here
1776 unless it is absolutely necessary.
1778 To compile this driver as a module, choose M here: the
1779 module will be called shwdt.
1781 # SPARC Architecture
1783 # SPARC64 Architecture
1785 config WATCHDOG_CP1XXX
1786 tristate "CP1XXX Hardware Watchdog support"
1787 depends on SPARC64 && PCI
1789 This is the driver for the hardware watchdog timers present on
1790 Sun Microsystems CompactPCI models CP1400 and CP1500.
1792 To compile this driver as a module, choose M here: the
1793 module will be called cpwatchdog.
1795 If you do not have a CompactPCI model CP1400 or CP1500, or
1796 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1797 you should say N to this option.
1800 tristate "RIO Hardware Watchdog support"
1801 depends on SPARC64 && PCI
1803 Say Y here to support the hardware watchdog capability on Sun RIO
1804 machines. The watchdog timeout period is normally one minute but
1805 can be changed with a boot-time parameter.
1807 config WATCHDOG_SUN4V
1808 tristate "Sun4v Watchdog support"
1809 select WATCHDOG_CORE
1812 Say Y here to support the hypervisor watchdog capability embedded
1813 in the SPARC sun4v architecture.
1815 To compile this driver as a module, choose M here. The module will
1816 be called sun4v_wdt.
1818 # XTENSA Architecture
1823 tristate "Xen Watchdog support"
1825 select WATCHDOG_CORE
1827 Say Y here to support the hypervisor watchdog capability provided
1828 by Xen 4.0 and newer. The watchdog timeout period is normally one
1829 minute but can be changed with a boot-time parameter.
1832 tristate "UML watchdog"
1833 depends on UML || COMPILE_TEST
1836 # ISA-based Watchdog Cards
1839 comment "ISA-based Watchdog Cards"
1843 tristate "Berkshire Products ISA-PC Watchdog"
1846 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1847 This card simply watches your kernel to make sure it doesn't freeze,
1848 and if it does, it reboots your computer after a certain amount of
1849 time. This driver is like the WDT501 driver but for different
1850 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1851 watchdog cards can be ordered from <http://www.berkprod.com/>.
1853 To compile this driver as a module, choose M here: the
1854 module will be called pcwd.
1856 Most people will say N.
1859 tristate "Mixcom Watchdog"
1862 This is a driver for the Mixcom hardware watchdog cards. This
1863 watchdog simply watches your kernel to make sure it doesn't freeze,
1864 and if it does, it reboots your computer after a certain amount of
1867 To compile this driver as a module, choose M here: the
1868 module will be called mixcomwd.
1870 Most people will say N.
1873 tristate "WDT Watchdog timer"
1876 If you have a WDT500P or WDT501P watchdog board, say Y here,
1877 otherwise N. It is not possible to probe for this board, which means
1878 that you have to inform the kernel about the IO port and IRQ that
1879 is needed (you can do this via the io and irq parameters)
1881 To compile this driver as a module, choose M here: the
1882 module will be called wdt.
1885 # PCI-based Watchdog Cards
1888 comment "PCI-based Watchdog Cards"
1891 config PCIPCWATCHDOG
1892 tristate "Berkshire Products PCI-PC Watchdog"
1895 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1896 This card simply watches your kernel to make sure it doesn't freeze,
1897 and if it does, it reboots your computer after a certain amount of
1898 time. The card can also monitor the internal temperature of the PC.
1899 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1901 To compile this driver as a module, choose M here: the
1902 module will be called pcwd_pci.
1904 Most people will say N.
1907 tristate "PCI-WDT500/501 Watchdog timer"
1910 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1912 If you have a PCI-WDT501 watchdog board then you can enable the
1913 temperature sensor by setting the type parameter to 501.
1915 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1916 can do this via the tachometer parameter. Only do this if you have a
1917 fan tachometer actually set up.
1919 To compile this driver as a module, choose M here: the
1920 module will be called wdt_pci.
1923 # USB-based Watchdog Cards
1926 comment "USB-based Watchdog Cards"
1929 config USBPCWATCHDOG
1930 tristate "Berkshire Products USB-PC Watchdog"
1933 This is the driver for the Berkshire Products USB-PC Watchdog card.
1934 This card simply watches your kernel to make sure it doesn't freeze,
1935 and if it does, it reboots your computer after a certain amount of
1936 time. The card can also monitor the internal temperature of the PC.
1937 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1939 To compile this driver as a module, choose M here: the
1940 module will be called pcwd_usb.
1942 Most people will say N.
1944 comment "Watchdog Pretimeout Governors"
1946 config WATCHDOG_PRETIMEOUT_GOV
1947 bool "Enable watchdog pretimeout governors"
1949 The option allows to select watchdog pretimeout governors.
1951 if WATCHDOG_PRETIMEOUT_GOV
1954 prompt "Default Watchdog Pretimeout Governor"
1955 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1957 This option selects a default watchdog pretimeout governor.
1958 The governor takes its action, if a watchdog is capable
1959 to report a pretimeout event.
1961 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1963 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1965 Use noop watchdog pretimeout governor by default. If noop
1966 governor is selected by a user, write a short message to
1967 the kernel log buffer and don't do any system changes.
1969 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1971 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1973 Use panic watchdog pretimeout governor by default, if
1974 a watchdog pretimeout event happens, consider that
1975 a watchdog feeder is dead and reboot is unavoidable.
1979 config WATCHDOG_PRETIMEOUT_GOV_NOOP
1980 tristate "Noop watchdog pretimeout governor"
1982 Noop watchdog pretimeout governor, only an informational
1983 message is added to kernel log buffer.
1985 config WATCHDOG_PRETIMEOUT_GOV_PANIC
1986 tristate "Panic watchdog pretimeout governor"
1988 Panic watchdog pretimeout governor, on watchdog pretimeout
1989 event put the kernel into panic.
1991 endif # WATCHDOG_PRETIMEOUT_GOV