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1# SPDX-License-Identifier: GPL-2.0-only2 3#4# Watchdog device configuration5#6 7menuconfig WATCHDOG8 bool "Watchdog Timer Support"9 help10 If you say Y here (and to one of the following options) and create a11 character special file /dev/watchdog with major number 10 and minor12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:13 subsequently opening the file and then failing to write to it for14 longer than 1 minute will result in rebooting the machine. This15 could be useful for a networked machine that needs to come back16 on-line as fast as possible after a lock-up. There's both a watchdog17 implementation entirely in software (which can sometimes fail to18 reboot the machine) and a driver for hardware watchdog boards, which19 are more robust and can also keep track of the temperature inside20 your computer. For details, read21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.22 23 The watchdog is usually used together with the watchdog daemon24 which is available from25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon26 can also monitor NFS connections and can reboot the machine when the27 process table is full.28 29 If unsure, say N.30 31if WATCHDOG32 33config WATCHDOG_CORE34 tristate "WatchDog Timer Driver Core"35 help36 Say Y here if you want to use the new watchdog timer driver core.37 This driver provides a framework for all watchdog timer drivers38 and gives them the /dev/watchdog interface (and later also the39 sysfs interface).40 41config WATCHDOG_NOWAYOUT42 bool "Disable watchdog shutdown on close"43 help44 The default watchdog behaviour (which you get if you say N here) is45 to stop the timer if the process managing it closes the file46 /dev/watchdog. It's always remotely possible that this process might47 get killed. If you say Y here, the watchdog cannot be stopped once48 it has been started.49 50config WATCHDOG_HANDLE_BOOT_ENABLED51 bool "Update boot-enabled watchdog until userspace takes over"52 default y53 help54 The default watchdog behaviour (which you get if you say Y here) is55 to ping watchdog devices that were enabled before the driver has56 been loaded until control is taken over from userspace using the57 /dev/watchdog file. If you say N here, the kernel will not update58 the watchdog on its own. Thus if your userspace does not start fast59 enough your device will reboot.60 61config WATCHDOG_OPEN_TIMEOUT62 int "Timeout value for opening watchdog device"63 default 064 help65 The maximum time, in seconds, for which the watchdog framework takes66 care of pinging a hardware watchdog. A value of 0 means infinite. The67 value set here can be overridden by the commandline parameter68 "watchdog.open_timeout".69 70config WATCHDOG_SYSFS71 bool "Read different watchdog information through sysfs"72 help73 Say Y here if you want to enable watchdog device status read through74 sysfs attributes.75 76config WATCHDOG_HRTIMER_PRETIMEOUT77 bool "Enable watchdog hrtimer-based pretimeouts"78 help79 Enable this if you want to use a hrtimer timer based pretimeout for80 watchdogs that do not natively support pretimeout support. Be aware81 that because this pretimeout functionality uses hrtimers, it may not82 be able to fire before the actual watchdog fires in some situations.83 84comment "Watchdog Pretimeout Governors"85 86config WATCHDOG_PRETIMEOUT_GOV87 bool "Enable watchdog pretimeout governors"88 depends on WATCHDOG_CORE89 help90 The option allows to select watchdog pretimeout governors.91 92config WATCHDOG_PRETIMEOUT_GOV_SEL93 tristate94 depends on WATCHDOG_PRETIMEOUT_GOV95 default m96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n97 98if WATCHDOG_PRETIMEOUT_GOV99 100config WATCHDOG_PRETIMEOUT_GOV_NOOP101 tristate "Noop watchdog pretimeout governor"102 depends on WATCHDOG_CORE103 default WATCHDOG_CORE104 help105 Noop watchdog pretimeout governor, only an informational106 message is added to kernel log buffer.107 108config WATCHDOG_PRETIMEOUT_GOV_PANIC109 tristate "Panic watchdog pretimeout governor"110 depends on WATCHDOG_CORE111 default WATCHDOG_CORE112 help113 Panic watchdog pretimeout governor, on watchdog pretimeout114 event put the kernel into panic.115 116choice117 prompt "Default Watchdog Pretimeout Governor"118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC119 help120 This option selects a default watchdog pretimeout governor.121 The governor takes its action, if a watchdog is capable122 to report a pretimeout event.123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP125 bool "noop"126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP127 help128 Use noop watchdog pretimeout governor by default. If noop129 governor is selected by a user, write a short message to130 the kernel log buffer and don't do any system changes.131 132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC133 bool "panic"134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC135 help136 Use panic watchdog pretimeout governor by default, if137 a watchdog pretimeout event happens, consider that138 a watchdog feeder is dead and reboot is unavoidable.139 140endchoice141 142endif # WATCHDOG_PRETIMEOUT_GOV143 144#145# General Watchdog drivers146#147 148comment "Watchdog Device Drivers"149 150# Architecture Independent151 152config SOFT_WATCHDOG153 tristate "Software watchdog"154 select WATCHDOG_CORE155 help156 A software monitoring watchdog. This will fail to reboot your system157 from some situations that the hardware watchdog will recover158 from. Equally it's a lot cheaper to install.159 160 To compile this driver as a module, choose M here: the161 module will be called softdog.162 163config SOFT_WATCHDOG_PRETIMEOUT164 bool "Software watchdog pretimeout governor support"165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV166 help167 Enable this if you want to use pretimeout governors with the software168 watchdog. Be aware that governors might affect the watchdog because it169 is purely software, e.g. the panic governor will stall it!170 171config BD957XMUF_WATCHDOG172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"173 depends on MFD_ROHM_BD957XMUF174 select WATCHDOG_CORE175 help176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.177 These PMIC ICs contain watchdog block which can be configured178 to toggle reset line if SoC fails to ping watchdog via GPIO.179 180 Say Y here to include support for the ROHM BD9576 or BD9573181 watchdog. Alternatively say M to compile the driver as a module,182 which will be called bd9576_wdt.183 184config BD96801_WATCHDOG185 tristate "ROHM BD96801 PMIC Watchdog"186 depends on MFD_ROHM_BD96801187 select WATCHDOG_CORE188 help189 Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be190 configured to only generate IRQ or to trigger system reset via reset191 pin.192 193 Say Y here to include support for the ROHM BD96801 watchdog.194 Alternatively say M to compile the driver as a module,195 which will be called bd96801_wdt.196 197config CROS_EC_WATCHDOG198 tristate "ChromeOS EC-based watchdog"199 select WATCHDOG_CORE200 depends on CROS_EC201 help202 Watchdog driver for Chromebook devices equipped with embedded controller.203 Trigger event is recorded in EC and checked on the subsequent boot.204 205 To compile this driver as a module, choose M here: the206 module will be called cros_ec_wdt.207 208config DA9052_WATCHDOG209 tristate "Dialog DA9052 Watchdog"210 depends on PMIC_DA9052 || COMPILE_TEST211 select WATCHDOG_CORE212 help213 Support for the watchdog in the DA9052 PMIC. Watchdog trigger214 cause system reset.215 216 Say Y here to include support for the DA9052 watchdog.217 Alternatively say M to compile the driver as a module,218 which will be called da9052_wdt.219 220config DA9055_WATCHDOG221 tristate "Dialog Semiconductor DA9055 Watchdog"222 depends on MFD_DA9055 || COMPILE_TEST223 select WATCHDOG_CORE224 help225 If you say yes here you get support for watchdog on the Dialog226 Semiconductor DA9055 PMIC.227 228 This driver can also be built as a module. If so, the module229 will be called da9055_wdt.230 231config DA9063_WATCHDOG232 tristate "Dialog DA9063 Watchdog"233 depends on MFD_DA9063 || COMPILE_TEST234 depends on I2C235 select WATCHDOG_CORE236 help237 Support for the watchdog in the DA9063 PMIC.238 239 This driver can be built as a module. The module name is da9063_wdt.240 241config DA9062_WATCHDOG242 tristate "Dialog DA9062/61 Watchdog"243 depends on MFD_DA9062 || COMPILE_TEST244 depends on I2C245 select WATCHDOG_CORE246 help247 Support for the watchdog in the DA9062 and DA9061 PMICs.248 249 This driver can be built as a module. The module name is da9062_wdt.250 251config GPIO_WATCHDOG252 tristate "Watchdog device controlled through GPIO-line"253 depends on OF_GPIO254 select WATCHDOG_CORE255 help256 If you say yes here you get support for watchdog device257 controlled through GPIO-line.258 259config GPIO_WATCHDOG_ARCH_INITCALL260 bool "Register the watchdog as early as possible"261 depends on GPIO_WATCHDOG=y262 help263 In some situations, the default initcall level (module_init)264 in not early enough in the boot process to avoid the watchdog265 to be triggered.266 If you say yes here, the initcall level would be raised to267 arch_initcall.268 If in doubt, say N.269 270config LENOVO_SE10_WDT271 tristate "Lenovo SE10 Watchdog"272 depends on (X86 && DMI) || COMPILE_TEST273 depends on HAS_IOPORT274 select WATCHDOG_CORE275 help276 If you say yes here you get support for the watchdog277 functionality for the Lenovo SE10 platform.278 279 This driver can also be built as a module. If so, the module280 will be called lenovo-se10-wdt.281 282config MENF21BMC_WATCHDOG283 tristate "MEN 14F021P00 BMC Watchdog"284 depends on MFD_MENF21BMC || COMPILE_TEST285 depends on I2C286 select WATCHDOG_CORE287 help288 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.289 290 This driver can also be built as a module. If so the module291 will be called menf21bmc_wdt.292 293config MENZ069_WATCHDOG294 tristate "MEN 16Z069 Watchdog"295 depends on MCB296 select WATCHDOG_CORE297 help298 Say Y here to include support for the MEN 16Z069 Watchdog.299 300 This driver can also be built as a module. If so the module301 will be called menz069_wdt.302 303config WDAT_WDT304 tristate "ACPI Watchdog Action Table (WDAT)"305 depends on ACPI306 select WATCHDOG_CORE307 select ACPI_WATCHDOG308 help309 This driver adds support for systems with ACPI Watchdog Action310 Table (WDAT) table. Servers typically have this but it can be311 found on some desktop machines as well. This driver will take312 over the native iTCO watchdog driver found on many Intel CPUs.313 314 To compile this driver as module, choose M here: the module will315 be called wdat_wdt.316 317config WM831X_WATCHDOG318 tristate "WM831x watchdog"319 depends on MFD_WM831X320 select WATCHDOG_CORE321 help322 Support for the watchdog in the WM831x AudioPlus PMICs. When323 the watchdog triggers the system will be reset.324 325config WM8350_WATCHDOG326 tristate "WM8350 watchdog"327 depends on MFD_WM8350328 select WATCHDOG_CORE329 help330 Support for the watchdog in the WM8350 AudioPlus PMIC. When331 the watchdog triggers the system will be reset.332 333config XILINX_WATCHDOG334 tristate "Xilinx Watchdog timer"335 depends on HAS_IOMEM336 select WATCHDOG_CORE337 help338 Watchdog driver for the xps_timebase_wdt IP core.339 340 To compile this driver as a module, choose M here: the341 module will be called of_xilinx_wdt.342 343config XILINX_WINDOW_WATCHDOG344 tristate "Xilinx window watchdog timer"345 depends on HAS_IOMEM346 depends on ARM64 || COMPILE_TEST347 select WATCHDOG_CORE348 help349 Window watchdog driver for the versal_wwdt IP core.350 Window watchdog timer(WWDT) contains closed(first) and351 open(second) window with 32 bit width. Write to the watchdog352 timer within predefined window periods of time. This means353 a period that is not too soon and a period that is not too354 late. The WWDT has to be restarted within the open window time.355 If software tries to restart WWDT outside of the open window356 time period, it generates a reset.357 358 To compile this driver as a module, choose M here: the359 module will be called xilinx_wwdt.360 361config ZIIRAVE_WATCHDOG362 tristate "Zodiac RAVE Watchdog Timer"363 depends on I2C364 select WATCHDOG_CORE365 help366 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog367 Processor.368 369 To compile this driver as a module, choose M here: the370 module will be called ziirave_wdt.371 372config RAVE_SP_WATCHDOG373 tristate "RAVE SP Watchdog timer"374 depends on RAVE_SP_CORE375 depends on NVMEM || !NVMEM376 select WATCHDOG_CORE377 help378 Support for the watchdog on RAVE SP device.379 380config MLX_WDT381 tristate "Mellanox Watchdog"382 depends on MELLANOX_PLATFORM || COMPILE_TEST383 select WATCHDOG_CORE384 select REGMAP385 help386 This is the driver for the hardware watchdog on Mellanox systems.387 If you are going to use it, say Y here, otherwise N.388 This driver can be used together with the watchdog daemon.389 It can also watch your kernel to make sure it doesn't freeze,390 and if it does, it reboots your system after a certain amount of391 time.392 393 To compile this driver as a module, choose M here: the394 module will be called mlx-wdt.395 396config SL28CPLD_WATCHDOG397 tristate "Kontron sl28cpld Watchdog"398 depends on MFD_SL28CPLD || COMPILE_TEST399 select WATCHDOG_CORE400 help401 Say Y here to include support for the watchdog timer402 on the Kontron sl28 CPLD.403 404 To compile this driver as a module, choose M here: the405 module will be called sl28cpld_wdt.406 407# ALPHA Architecture408 409# ARM Architecture410 411config ARM_SP805_WATCHDOG412 tristate "ARM SP805 Watchdog"413 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA414 select WATCHDOG_CORE415 help416 ARM Primecell SP805 Watchdog timer. This will reboot your system when417 the timeout is reached.418 419config ARM_SBSA_WATCHDOG420 tristate "ARM SBSA Generic Watchdog"421 depends on ARM64422 depends on ARM_ARCH_TIMER423 select WATCHDOG_CORE424 help425 ARM SBSA Generic Watchdog has two stage timeouts:426 the first signal (WS0) is for alerting the system by interrupt,427 the second one (WS1) is a real hardware reset.428 More details: ARM DEN0029B - Server Base System Architecture (SBSA)429 430 This driver can operate ARM SBSA Generic Watchdog as a single stage431 or a two stages watchdog, it depends on the module parameter "action".432 433 Note: the maximum timeout in the two stages mode is half of that in434 the single stage mode.435 436 To compile this driver as module, choose M here: The module437 will be called sbsa_gwdt.438 439config ARMADA_37XX_WATCHDOG440 tristate "Armada 37xx watchdog"441 depends on ARCH_MVEBU || COMPILE_TEST442 depends on HAS_IOMEM443 select MFD_SYSCON444 select WATCHDOG_CORE445 help446 Say Y here to include support for the watchdog timer found on447 Marvell Armada 37xx SoCs.448 To compile this driver as a module, choose M here: the449 module will be called armada_37xx_wdt.450 451config ASM9260_WATCHDOG452 tristate "Alphascale ASM9260 watchdog"453 depends on MACH_ASM9260 || COMPILE_TEST454 depends on OF455 select WATCHDOG_CORE456 select RESET_CONTROLLER457 help458 Watchdog timer embedded into Alphascale asm9260 chips. This will459 reboot your system when the timeout is reached.460 461config AT91RM9200_WATCHDOG462 tristate "AT91RM9200 watchdog"463 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST464 help465 Watchdog timer embedded into AT91RM9200 chips. This will reboot your466 system when the timeout is reached.467 468config AT91SAM9X_WATCHDOG469 tristate "AT91SAM9X / AT91CAP9 watchdog"470 depends on ARCH_AT91 || COMPILE_TEST471 select WATCHDOG_CORE472 help473 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will474 reboot your system when the timeout is reached.475 476config SAMA5D4_WATCHDOG477 tristate "Atmel SAMA5D4 Watchdog Timer"478 depends on ARCH_AT91 || COMPILE_TEST479 select WATCHDOG_CORE480 help481 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.482 Its Watchdog Timer Mode Register can be written more than once.483 This will reboot your system when the timeout is reached.484 485config CADENCE_WATCHDOG486 tristate "Cadence Watchdog Timer"487 depends on HAS_IOMEM488 select WATCHDOG_CORE489 help490 Say Y here if you want to include support for the watchdog491 timer in the Xilinx Zynq.492 493config 21285_WATCHDOG494 tristate "DC21285 watchdog"495 depends on FOOTBRIDGE496 help497 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y498 here if you wish to use this. Alternatively say M to compile the499 driver as a module, which will be called wdt285.500 501 This driver does not work on all machines. In particular, early CATS502 boards have hardware problems that will cause the machine to simply503 lock up if the watchdog fires.504 505 "If in doubt, leave it out" - say N.506 507config 977_WATCHDOG508 tristate "NetWinder WB83C977 watchdog"509 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)510 depends on HAS_IOPORT511 help512 Say Y here to include support for the WB977 watchdog included in513 NetWinder machines. Alternatively say M to compile the driver as514 a module, which will be called wdt977.515 516 Not sure? It's safe to say N.517 518config FTWDT010_WATCHDOG519 tristate "Faraday Technology FTWDT010 watchdog"520 depends on ARM || COMPILE_TEST521 select WATCHDOG_CORE522 default ARCH_GEMINI523 help524 Say Y here if to include support for the Faraday Technology525 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini526 family of devices.527 528 To compile this driver as a module, choose M here: the529 module will be called ftwdt010_wdt.530 531config IXP4XX_WATCHDOG532 tristate "IXP4xx Watchdog"533 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)534 select WATCHDOG_CORE535 help536 Say Y here if to include support for the watchdog timer537 in the Intel IXP4xx network processors. This driver can538 be built as a module by choosing M. The module will539 be called ixp4xx_wdt.540 541 Note: The internal IXP4xx watchdog does a soft CPU reset542 which doesn't reset any peripherals. There are circumstances543 where the watchdog will fail to reset the board correctly544 (e.g., if the boot ROM is in an unreadable state).545 546 Say N if you are unsure.547 548config S3C2410_WATCHDOG549 tristate "S3C6410/S5Pv210/Exynos Watchdog"550 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST551 select WATCHDOG_CORE552 help553 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos554 SoCs. This will reboot the system when the timer expires with555 the watchdog enabled.556 557 The driver is limited by the speed of the system's PCLK558 signal, so with reasonably fast systems (PCLK around 50-66MHz)559 then watchdog intervals of over approximately 20seconds are560 unavailable.561 562 Choose Y/M here only if you build for such Samsung SoC.563 The driver can be built as a module by choosing M, and will564 be called s3c2410_wdt.565 566config SA1100_WATCHDOG567 tristate "SA1100/PXA2xx watchdog"568 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST569 help570 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will571 reboot your system when timeout is reached.572 573 NOTE: once enabled, this timer cannot be disabled.574 575 To compile this driver as a module, choose M here: the576 module will be called sa1100_wdt.577 578config DW_WATCHDOG579 tristate "Synopsys DesignWare watchdog"580 depends on HAS_IOMEM581 select WATCHDOG_CORE582 help583 Say Y here if to include support for the Synopsys DesignWare584 watchdog timer found in many chips.585 To compile this driver as a module, choose M here: the586 module will be called dw_wdt.587 588config EP93XX_WATCHDOG589 tristate "EP93xx Watchdog"590 depends on ARCH_EP93XX || COMPILE_TEST591 select WATCHDOG_CORE592 help593 Say Y here if to include support for the watchdog timer594 embedded in the Cirrus Logic EP93xx family of devices.595 596 To compile this driver as a module, choose M here: the597 module will be called ep93xx_wdt.598 599config OMAP_WATCHDOG600 tristate "OMAP Watchdog"601 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST602 select WATCHDOG_CORE603 help604 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.605 Say 'Y' here to enable the606 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.607 608config PNX4008_WATCHDOG609 tristate "LPC32XX Watchdog"610 depends on ARCH_LPC32XX || COMPILE_TEST611 select WATCHDOG_CORE612 help613 Say Y here if to include support for the watchdog timer614 in the LPC32XX processor.615 This driver can be built as a module by choosing M. The module616 will be called pnx4008_wdt.617 618 Say N if you are unsure.619 620config DAVINCI_WATCHDOG621 tristate "DaVinci watchdog"622 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST623 select WATCHDOG_CORE624 help625 Say Y here if to include support for the watchdog timer626 in the DaVinci DM644x/DM646x or Keystone processors.627 To compile this driver as a module, choose M here: the628 module will be called davinci_wdt.629 630 NOTE: once enabled, this timer cannot be disabled.631 Say N if you are unsure.632 633config K3_RTI_WATCHDOG634 tristate "Texas Instruments K3 RTI watchdog"635 depends on ARCH_K3 || COMPILE_TEST636 select WATCHDOG_CORE637 help638 Say Y here if you want to include support for the K3 watchdog639 timer (RTI module) available in the K3 generation of processors.640 641config ORION_WATCHDOG642 tristate "Orion watchdog"643 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST644 depends on ARM645 select WATCHDOG_CORE646 help647 Say Y here if to include support for the watchdog timer648 in the Marvell Orion5x and Kirkwood ARM SoCs.649 To compile this driver as a module, choose M here: the650 module will be called orion_wdt.651 652config RN5T618_WATCHDOG653 tristate "Ricoh RN5T618 watchdog"654 depends on MFD_RN5T618 || COMPILE_TEST655 select WATCHDOG_CORE656 help657 If you say yes here you get support for watchdog on the Ricoh658 RN5T618 PMIC.659 660 This driver can also be built as a module. If so, the module661 will be called rn5t618_wdt.662 663config SUNXI_WATCHDOG664 tristate "Allwinner SoCs watchdog support"665 depends on ARCH_SUNXI || COMPILE_TEST666 select WATCHDOG_CORE667 help668 Say Y here to include support for the watchdog timer669 in Allwinner SoCs.670 To compile this driver as a module, choose M here: the671 module will be called sunxi_wdt.672 673config NPCM7XX_WATCHDOG674 tristate "Nuvoton NPCM750 watchdog"675 depends on ARCH_NPCM || COMPILE_TEST676 default y if ARCH_NPCM7XX677 select WATCHDOG_CORE678 help679 Say Y here to include Watchdog timer support for the680 watchdog embedded into the NPCM7xx.681 This watchdog is used to reset the system and thus cannot be682 compiled as a module.683 684config TWL4030_WATCHDOG685 tristate "TWL4030 Watchdog"686 depends on TWL4030_CORE687 select WATCHDOG_CORE688 help689 Support for TI TWL4030 watchdog. Say 'Y' here to enable the690 watchdog timer support for TWL4030 chips.691 692config STMP3XXX_RTC_WATCHDOG693 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"694 depends on RTC_DRV_STMP || COMPILE_TEST695 select WATCHDOG_CORE696 help697 Say Y here to include support for the watchdog timer inside698 the RTC for the STMP37XX/378X or i.MX23/28 SoC.699 To compile this driver as a module, choose M here: the700 module will be called stmp3xxx_rtc_wdt.701 702config TS4800_WATCHDOG703 tristate "TS-4800 Watchdog"704 depends on HAS_IOMEM && OF705 depends on SOC_IMX51 || COMPILE_TEST706 select WATCHDOG_CORE707 select MFD_SYSCON708 help709 Technologic Systems TS-4800 has watchdog timer implemented in710 an external FPGA. Say Y here if you want to support for the711 watchdog timer on TS-4800 board.712 713config TS72XX_WATCHDOG714 tristate "TS-72XX SBC Watchdog"715 depends on MACH_TS72XX || COMPILE_TEST716 select WATCHDOG_CORE717 help718 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have719 watchdog timer implemented in a external CPLD chip. Say Y here720 if you want to support for the watchdog timer on TS-72XX boards.721 722 To compile this driver as a module, choose M here: the723 module will be called ts72xx_wdt.724 725config MAX63XX_WATCHDOG726 tristate "Max63xx watchdog"727 depends on HAS_IOMEM728 select WATCHDOG_CORE729 help730 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.731 732config MAX77620_WATCHDOG733 tristate "Maxim Max77620 Watchdog Timer"734 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST735 select WATCHDOG_CORE736 help737 This is the driver for the Max77620 watchdog timer.738 Say 'Y' here to enable the watchdog timer support for739 MAX77620 chips. To compile this driver as a module,740 choose M here: the module will be called max77620_wdt.741 742config IMX2_WDT743 tristate "IMX2+ Watchdog"744 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST745 select REGMAP_MMIO746 select WATCHDOG_CORE747 help748 This is the driver for the hardware watchdog749 on the Freescale IMX2 and later processors.750 If you have one of these processors and wish to have751 watchdog support enabled, say Y, otherwise say N.752 753 To compile this driver as a module, choose M here: the754 module will be called imx2_wdt.755 756config IMX_SC_WDT757 tristate "IMX SC Watchdog"758 depends on HAVE_ARM_SMCCC759 depends on IMX_SCU || COMPILE_TEST760 select WATCHDOG_CORE761 help762 This is the driver for the system controller watchdog763 on the NXP i.MX SoCs with system controller inside, the764 watchdog driver will call ARM SMC API and trap into765 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware766 will request system controller to execute the operations.767 If you have one of these processors and wish to have768 watchdog support enabled, say Y, otherwise say N.769 770 To compile this driver as a module, choose M here: the771 module will be called imx_sc_wdt.772 773config IMX7ULP_WDT774 tristate "IMX7ULP Watchdog"775 depends on ARCH_MXC || COMPILE_TEST776 select WATCHDOG_CORE777 help778 This is the driver for the hardware watchdog on the Freescale779 IMX7ULP and later processors. If you have one of these780 processors and wish to have watchdog support enabled,781 say Y, otherwise say N.782 783 To compile this driver as a module, choose M here: the784 module will be called imx7ulp_wdt.785 786config DB500_WATCHDOG787 tristate "ST-Ericsson DB800 watchdog"788 depends on MFD_DB8500_PRCMU789 select WATCHDOG_CORE790 default y791 help792 Say Y here to include Watchdog timer support for the watchdog793 existing in the prcmu of ST-Ericsson DB8500 platform.794 795 To compile this driver as a module, choose M here: the796 module will be called db500_wdt.797 798config RETU_WATCHDOG799 tristate "Retu watchdog"800 depends on MFD_RETU801 select WATCHDOG_CORE802 help803 Retu watchdog driver for Nokia Internet Tablets (770, N800,804 N810). At least on N800 the watchdog cannot be disabled, so805 this driver is essential and you should enable it.806 807 To compile this driver as a module, choose M here: the808 module will be called retu_wdt.809 810config MOXART_WDT811 tristate "MOXART watchdog"812 depends on ARCH_MOXART || COMPILE_TEST813 help814 Say Y here to include Watchdog timer support for the watchdog815 existing on the MOXA ART SoC series platforms.816 817 To compile this driver as a module, choose M here: the818 module will be called moxart_wdt.819 820config ST_LPC_WATCHDOG821 tristate "STMicroelectronics LPC Watchdog"822 depends on ARCH_STI || COMPILE_TEST823 depends on OF824 select WATCHDOG_CORE825 help826 Say Y here to include STMicroelectronics Low Power Controller827 (LPC) based Watchdog timer support.828 829 To compile this driver as a module, choose M here: the830 module will be called st_lpc_wdt.831 832config TEGRA_WATCHDOG833 tristate "Tegra watchdog"834 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM835 select WATCHDOG_CORE836 help837 Say Y here to include support for the watchdog timer838 embedded in NVIDIA Tegra SoCs.839 840 To compile this driver as a module, choose M here: the841 module will be called tegra_wdt.842 843config QCOM_WDT844 tristate "QCOM watchdog"845 depends on HAS_IOMEM846 depends on ARCH_QCOM || COMPILE_TEST847 select WATCHDOG_CORE848 help849 Say Y here to include Watchdog timer support for the watchdog found850 on QCOM chipsets. Currently supported targets are the MSM8960,851 APQ8064, and IPQ8064.852 853 To compile this driver as a module, choose M here: the854 module will be called qcom_wdt.855 856config MESON_GXBB_WATCHDOG857 tristate "Amlogic Meson GXBB SoCs watchdog support"858 depends on ARCH_MESON || COMPILE_TEST859 select WATCHDOG_CORE860 help861 Say Y here to include support for the watchdog timer862 in Amlogic Meson GXBB SoCs.863 To compile this driver as a module, choose M here: the864 module will be called meson_gxbb_wdt.865 866config MESON_WATCHDOG867 tristate "Amlogic Meson SoCs watchdog support"868 depends on ARCH_MESON || COMPILE_TEST869 select WATCHDOG_CORE870 help871 Say Y here to include support for the watchdog timer872 in Amlogic Meson SoCs.873 To compile this driver as a module, choose M here: the874 module will be called meson_wdt.875 876config MEDIATEK_WATCHDOG877 tristate "Mediatek SoCs watchdog support"878 depends on ARCH_MEDIATEK || COMPILE_TEST879 default ARCH_MEDIATEK880 select WATCHDOG_CORE881 select RESET_CONTROLLER882 help883 Say Y here to include support for the watchdog timer884 in Mediatek SoCs.885 To compile this driver as a module, choose M here: the886 module will be called mtk_wdt.887 888config DIGICOLOR_WATCHDOG889 tristate "Conexant Digicolor SoCs watchdog support"890 depends on ARCH_DIGICOLOR || COMPILE_TEST891 select WATCHDOG_CORE892 help893 Say Y here to include support for the watchdog timer894 in Conexant Digicolor SoCs.895 To compile this driver as a module, choose M here: the896 module will be called digicolor_wdt.897 898config ARM_SMC_WATCHDOG899 tristate "ARM Secure Monitor Call based watchdog support"900 depends on ARM || ARM64901 depends on OF902 depends on HAVE_ARM_SMCCC903 select WATCHDOG_CORE904 help905 Say Y here to include support for a watchdog timer906 implemented by the EL3 Secure Monitor on ARM platforms.907 Requires firmware support.908 To compile this driver as a module, choose M here: the909 module will be called arm_smc_wdt.910 911config LPC18XX_WATCHDOG912 tristate "LPC18xx/43xx Watchdog"913 depends on ARCH_LPC18XX || COMPILE_TEST914 depends on HAS_IOMEM915 select WATCHDOG_CORE916 help917 Say Y here if to include support for the watchdog timer918 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx919 processors.920 To compile this driver as a module, choose M here: the921 module will be called lpc18xx_wdt.922 923config RENESAS_WDT924 tristate "Renesas WDT Watchdog"925 depends on ARCH_RENESAS || COMPILE_TEST926 select WATCHDOG_CORE927 help928 This driver adds watchdog support for the integrated watchdogs in the929 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).930 931config RENESAS_RZAWDT932 tristate "Renesas RZ/A WDT Watchdog"933 depends on ARCH_RENESAS || COMPILE_TEST934 select WATCHDOG_CORE935 help936 This driver adds watchdog support for the integrated watchdogs in the937 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.938 939config RENESAS_RZN1WDT940 tristate "Renesas RZ/N1 watchdog"941 depends on ARCH_RENESAS || COMPILE_TEST942 select WATCHDOG_CORE943 help944 This driver adds watchdog support for the integrated watchdogs in the945 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.946 947config RENESAS_RZG2LWDT948 tristate "Renesas RZ/G2L WDT Watchdog"949 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST950 depends on PM || COMPILE_TEST951 select WATCHDOG_CORE952 help953 This driver adds watchdog support for the integrated watchdogs in the954 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.955 956config RENESAS_RZV2HWDT957 tristate "Renesas RZ/V2H(P) WDT Watchdog"958 depends on ARCH_R9A09G057 || COMPILE_TEST959 depends on PM || COMPILE_TEST960 select WATCHDOG_CORE961 help962 This driver adds watchdog support for the integrated watchdogs in the963 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system.964 965config ASPEED_WATCHDOG966 tristate "Aspeed BMC watchdog support"967 depends on ARCH_ASPEED || COMPILE_TEST968 select WATCHDOG_CORE969 help970 Say Y here to include support for the watchdog timer971 in Aspeed BMC SoCs.972 973 This driver is required to reboot the SoC.974 975 To compile this driver as a module, choose M here: the976 module will be called aspeed_wdt.977 978config STM32_WATCHDOG979 tristate "STM32 Independent WatchDoG (IWDG) support"980 depends on ARCH_STM32 || COMPILE_TEST981 select WATCHDOG_CORE982 default y983 help984 Say Y here to include support for the watchdog timer985 in stm32 SoCs.986 987 To compile this driver as a module, choose M here: the988 module will be called stm32_iwdg.989 990config STPMIC1_WATCHDOG991 tristate "STPMIC1 PMIC watchdog support"992 depends on MFD_STPMIC1993 select WATCHDOG_CORE994 help995 Say Y here to include watchdog support embedded into STPMIC1 PMIC.996 If the watchdog timer expires, stpmic1 will shut down all its power997 supplies.998 999 To compile this driver as a module, choose M here: the1000 module will be called spmic1_wdt.1001 1002config UNIPHIER_WATCHDOG1003 tristate "UniPhier watchdog support"1004 depends on ARCH_UNIPHIER || COMPILE_TEST1005 depends on OF && MFD_SYSCON1006 select WATCHDOG_CORE1007 help1008 Say Y here to include support watchdog timer embedded1009 into the UniPhier system.1010 1011 To compile this driver as a module, choose M here: the1012 module will be called uniphier_wdt.1013 1014config RTD119X_WATCHDOG1015 bool "Realtek RTD119x/RTD129x watchdog support"1016 depends on ARCH_REALTEK || COMPILE_TEST1017 depends on OF1018 select WATCHDOG_CORE1019 default ARCH_REALTEK1020 help1021 Say Y here to include support for the watchdog timer in1022 Realtek RTD1295 SoCs.1023 1024config REALTEK_OTTO_WDT1025 tristate "Realtek Otto MIPS watchdog support"1026 depends on MACH_REALTEK_RTL || COMPILE_TEST1027 depends on COMMON_CLK1028 select WATCHDOG_CORE1029 default MACH_REALTEK_RTL1030 help1031 Say Y here to include support for the watchdog timer on Realtek1032 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout1033 notifications and system reset on timeout.1034 1035 When built as a module this will be called realtek_otto_wdt.1036 1037config SPRD_WATCHDOG1038 tristate "Spreadtrum watchdog support"1039 depends on ARCH_SPRD || COMPILE_TEST1040 select WATCHDOG_CORE1041 help1042 Say Y here to include watchdog timer supported1043 by Spreadtrum system.1044 1045config PM8916_WATCHDOG1046 tristate "QCOM PM8916 pmic watchdog"1047 depends on OF && MFD_SPMI_PMIC1048 select WATCHDOG_CORE1049 help1050 Say Y here to include support watchdog timer embedded into the1051 pm8916 module.1052 1053config VISCONTI_WATCHDOG1054 tristate "Toshiba Visconti series watchdog support"1055 depends on ARCH_VISCONTI || COMPILE_TEST1056 select WATCHDOG_CORE1057 help1058 Say Y here to include support for the watchdog timer in Toshiba1059 Visconti SoCs.1060 1061config MSC313E_WATCHDOG1062 tristate "MStar MSC313e watchdog"1063 depends on ARCH_MSTARV7 || COMPILE_TEST1064 select WATCHDOG_CORE1065 help1066 Say Y here to include support for the Watchdog timer embedded1067 into MStar MSC313e chips. This will reboot your system when the1068 timeout is reached.1069 1070 To compile this driver as a module, choose M here: the1071 module will be called msc313e_wdt.1072 1073config APPLE_WATCHDOG1074 tristate "Apple SoC watchdog"1075 depends on ARCH_APPLE || COMPILE_TEST1076 select WATCHDOG_CORE1077 help1078 Say Y here to include support for the Watchdog found in Apple1079 SoCs such as the M1. Next to the common watchdog features this1080 driver is also required in order to reboot these SoCs.1081 1082 To compile this driver as a module, choose M here: the1083 module will be called apple_wdt.1084 1085config SUNPLUS_WATCHDOG1086 tristate "Sunplus watchdog support"1087 depends on ARCH_SUNPLUS || COMPILE_TEST1088 select WATCHDOG_CORE1089 help1090 Say Y here to include support for the watchdog timer1091 in Sunplus SoCs.1092 1093 To compile this driver as a module, choose M here: the1094 module will be called sunplus_wdt.1095 1096# X86 (i386 + ia64 + x86_64) Architecture1097 1098config ACQUIRE_WDT1099 tristate "Acquire SBC Watchdog Timer"1100 depends on X861101 help1102 This is the driver for the hardware watchdog on Single Board1103 Computers produced by Acquire Inc (and others). This watchdog1104 simply watches your kernel to make sure it doesn't freeze, and if1105 it does, it reboots your computer after a certain amount of time.1106 1107 To compile this driver as a module, choose M here: the1108 module will be called acquirewdt.1109 1110 Most people will say N.1111 1112config ADVANTECH_WDT1113 tristate "Advantech SBC Watchdog Timer"1114 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1115 help1116 If you are configuring a Linux kernel for the Advantech single-board1117 computer, say `Y' here to support its built-in watchdog timer1118 feature. More information can be found at1119 <https://www.advantech.com.tw/products/>1120 1121config ADVANTECH_EC_WDT1122 tristate "Advantech Embedded Controller Watchdog Timer"1123 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1124 select ISA_BUS_API1125 select WATCHDOG_CORE1126 help1127 This driver supports Advantech products with ITE based Embedded Controller.1128 It does not support Advantech products with other ECs or without EC.1129 1130config ALIM1535_WDT1131 tristate "ALi M1535 PMU Watchdog Timer"1132 depends on (X86 || COMPILE_TEST) && PCI1133 help1134 This is the driver for the hardware watchdog on the ALi M1535 PMU.1135 1136 To compile this driver as a module, choose M here: the1137 module will be called alim1535_wdt.1138 1139 Most people will say N.1140 1141config ALIM7101_WDT1142 tristate "ALi M7101 PMU Computer Watchdog"1143 depends on PCI1144 help1145 This is the driver for the hardware watchdog on the ALi M7101 PMU1146 as used in the x86 Cobalt servers and also found in some1147 SPARC Netra servers too.1148 1149 To compile this driver as a module, choose M here: the1150 module will be called alim7101_wdt.1151 1152 Most people will say N.1153 1154config EBC_C384_WDT1155 tristate "WinSystems EBC-C384 Watchdog Timer"1156 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1157 select ISA_BUS_API1158 select WATCHDOG_CORE1159 help1160 Enables watchdog timer support for the watchdog timer on the1161 WinSystems EBC-C384 motherboard. The timeout may be configured via1162 the timeout module parameter.1163 1164config EXAR_WDT1165 tristate "Exar Watchdog Timer"1166 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1167 select WATCHDOG_CORE1168 help1169 Enables watchdog timer support for the watchdog timer present1170 in some Exar/MaxLinear UART chips like the XR28V38x.1171 1172 To compile this driver as a module, choose M here: the1173 module will be called exar_wdt.1174 1175config F71808E_WDT1176 tristate "Fintek F718xx, F818xx Super I/O Watchdog"1177 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1178 select WATCHDOG_CORE1179 help1180 This is the driver for the hardware watchdog on the Fintek F71808E,1181 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and1182 F81866 Super I/O controllers.1183 1184 You can compile this driver directly into the kernel, or use1185 it as a module. The module will be called f71808e_wdt.1186 1187config SP5100_TCO1188 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"1189 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT1190 select WATCHDOG_CORE1191 help1192 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO1193 (Total Cost of Ownership) timer is a watchdog timer that will reboot1194 the machine after its expiration. The expiration time can be1195 configured with the "heartbeat" parameter.1196 1197 To compile this driver as a module, choose M here: the1198 module will be called sp5100_tco.1199 1200config GEODE_WDT1201 tristate "AMD Geode CS5535/CS5536 Watchdog"1202 depends on CS5535_MFGPT1203 help1204 This driver enables a watchdog capability built into the1205 CS5535/CS5536 companion chips for the AMD Geode GX and LX1206 processors. This watchdog watches your kernel to make sure1207 it doesn't freeze, and if it does, it reboots your computer after1208 a certain amount of time.1209 1210 You can compile this driver directly into the kernel, or use1211 it as a module. The module will be called geodewdt.1212 1213config SC520_WDT1214 tristate "AMD Elan SC520 processor Watchdog"1215 depends on MELAN || COMPILE_TEST1216 help1217 This is the driver for the hardware watchdog built in to the1218 AMD "Elan" SC520 microcomputer commonly used in embedded systems.1219 This watchdog simply watches your kernel to make sure it doesn't1220 freeze, and if it does, it reboots your computer after a certain1221 amount of time.1222 1223 You can compile this driver directly into the kernel, or use1224 it as a module. The module will be called sc520_wdt.1225 1226config SBC_FITPC2_WATCHDOG1227 tristate "Compulab SBC-FITPC2 watchdog"1228 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1229 help1230 This is the driver for the built-in watchdog timer on the fit-PC2,1231 fit-PC2i, CM-iAM single-board computers made by Compulab.1232 1233 It's possible to enable the watchdog timer either from BIOS (F2) or1234 from booted Linux.1235 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds1236 operational range.1237 1238 Entering BIOS setup temporarily disables watchdog operation regardless1239 of current state, so system will not be restarted while user is in1240 BIOS setup.1241 1242 Once the watchdog is enabled the system will be restarted every1243 "Watchdog Timer Value" period, so to prevent it user can restart or1244 disable the watchdog.1245 1246 To compile this driver as a module, choose M here: the1247 module will be called sbc_fitpc2_wdt.1248 1249 Most people will say N.1250 1251config EUROTECH_WDT1252 tristate "Eurotech CPU-1220/1410 Watchdog Timer"1253 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1254 help1255 Enable support for the watchdog timer on the Eurotech CPU-1220 and1256 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product1257 information are at <http://www.eurotech.it/>.1258 1259config IB700_WDT1260 tristate "IB700 SBC Watchdog Timer"1261 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1262 help1263 This is the driver for the hardware watchdog on the IB700 Single1264 Board Computer produced by TMC Technology (www.tmc-uk.com). This1265 watchdog simply watches your kernel to make sure it doesn't freeze,1266 and if it does, it reboots your computer after a certain amount of time.1267 1268 This driver is like the WDT501 driver but for slightly different1269 hardware.1270 1271 To compile this driver as a module, choose M here: the1272 module will be called ib700wdt.1273 1274 Most people will say N.1275 1276config IBMASR1277 tristate "IBM Automatic Server Restart"1278 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1279 help1280 This is the driver for the IBM Automatic Server Restart watchdog1281 timer built-in into some eServer xSeries machines.1282 1283 To compile this driver as a module, choose M here: the1284 module will be called ibmasr.1285 1286config WAFER_WDT1287 tristate "ICP Single Board Computer Watchdog Timer"1288 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1289 help1290 This is a driver for the hardware watchdog on the ICP Single1291 Board Computer. This driver is working on (at least) the following1292 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.1293 1294 To compile this driver as a module, choose M here: the1295 module will be called wafer5823wdt.1296 1297config I6300ESB_WDT1298 tristate "Intel 6300ESB Timer/Watchdog"1299 depends on PCI1300 select WATCHDOG_CORE1301 help1302 Hardware driver for the watchdog timer built into the Intel1303 6300ESB controller hub.1304 1305 To compile this driver as a module, choose M here: the1306 module will be called i6300esb.1307 1308config IE6XX_WDT1309 tristate "Intel Atom E6xx Watchdog"1310 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT1311 select WATCHDOG_CORE1312 select MFD_CORE1313 select LPC_SCH1314 help1315 Hardware driver for the watchdog timer built into the Intel1316 Atom E6XX (TunnelCreek) processor.1317 1318 To compile this driver as a module, choose M here: the1319 module will be called ie6xx_wdt.1320 1321config INTEL_MID_WATCHDOG1322 tristate "Intel MID Watchdog Timer"1323 depends on X86_INTEL_MID1324 select WATCHDOG_CORE1325 help1326 Watchdog timer driver built into the Intel SCU for Intel MID1327 Platforms.1328 1329 This driver currently supports only the watchdog evolution1330 implementation in SCU, available for Merrifield generation.1331 1332 To compile this driver as a module, choose M here.1333 1334config ITCO_WDT1335 tristate "Intel TCO Timer/Watchdog"1336 depends on X86 && PCI1337 select WATCHDOG_CORE1338 depends on I2C || I2C=n1339 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT1340 depends on HAS_IOPORT # for I2C_I8011341 select LPC_ICH if !EXPERT1342 select I2C_I801 if !EXPERT && I2C1343 help1344 Hardware driver for the intel TCO timer based watchdog devices.1345 These drivers are included in the Intel 82801 I/O Controller1346 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB1347 controller hub.1348 1349 The TCO (Total Cost of Ownership) timer is a watchdog timer1350 that will reboot the machine after its second expiration. The1351 expiration time can be configured with the "heartbeat" parameter.1352 1353 On some motherboards the driver may fail to reset the chipset's1354 NO_REBOOT flag which prevents the watchdog from rebooting the1355 machine. If this is the case you will get a kernel message like1356 "failed to reset NO_REBOOT flag, reboot disabled by hardware".1357 1358 To compile this driver as a module, choose M here: the1359 module will be called iTCO_wdt.1360 1361config ITCO_VENDOR_SUPPORT1362 bool "Intel TCO Timer/Watchdog Specific Vendor Support"1363 depends on ITCO_WDT1364 help1365 Add vendor specific support to the intel TCO timer based watchdog1366 devices. At this moment we only have additional support for some1367 SuperMicro Inc. motherboards.1368 1369config IT8712F_WDT1370 tristate "IT8712F (Smart Guardian) Watchdog Timer"1371 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1372 help1373 This is the driver for the built-in watchdog timer on the IT8712F1374 Super I/0 chipset used on many motherboards.1375 1376 If the driver does not work, then make sure that the game port in1377 the BIOS is enabled.1378 1379 To compile this driver as a module, choose M here: the1380 module will be called it8712f_wdt.1381 1382config IT87_WDT1383 tristate "IT87 Watchdog Timer"1384 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1385 select WATCHDOG_CORE1386 help1387 This is the driver for the hardware watchdog on the ITE IT8607,1388 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,1389 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and1390 IT8783 Super I/O chips.1391 1392 This watchdog simply watches your kernel to make sure it doesn't1393 freeze, and if it does, it reboots your computer after a certain1394 amount of time.1395 1396 To compile this driver as a module, choose M here: the module will1397 be called it87_wdt.1398 1399config HP_WATCHDOG1400 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"1401 select WATCHDOG_CORE1402 depends on (ARM64 || X86 || COMPILE_TEST) && PCI1403 help1404 A software monitoring watchdog and NMI handling driver. This driver1405 will detect lockups and provide a stack trace. This is a driver that1406 will only load on an HP ProLiant system with a minimum of iLO2 support.1407 To compile this driver as a module, choose M here: the module will be1408 called hpwdt.1409 1410config HPWDT_NMI_DECODING1411 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"1412 depends on X86 && HP_WATCHDOG1413 default y1414 help1415 Enables the NMI handler for the watchdog pretimeout NMI and the iLO1416 "Generate NMI to System" virtual button. When an NMI is claimed1417 by the driver, panic is called.1418 1419config KEMPLD_WDT1420 tristate "Kontron COM Watchdog Timer"1421 depends on MFD_KEMPLD1422 select WATCHDOG_CORE1423 help1424 Support for the PLD watchdog on some Kontron ETX and COMexpress1425 (ETXexpress) modules1426 1427 This driver can also be built as a module. If so, the module will be1428 called kempld_wdt.1429 1430config SC1200_WDT1431 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"1432 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1433 help1434 This is a driver for National Semiconductor PC87307/PC97307 hardware1435 watchdog cards as found on the SC1200. This watchdog is mainly used1436 for power management purposes and can be used to power down the device1437 during inactivity periods (includes interrupt activity monitoring).1438 1439 To compile this driver as a module, choose M here: the1440 module will be called sc1200wdt.1441 1442 Most people will say N.1443 1444config SCx200_WDT1445 tristate "National Semiconductor SCx200 Watchdog"1446 depends on SCx200 && PCI1447 help1448 Enable the built-in watchdog timer support on the National1449 Semiconductor SCx200 processors.1450 1451 If compiled as a module, it will be called scx200_wdt.1452 1453config PC87413_WDT1454 tristate "NS PC87413 watchdog"1455 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1456 help1457 This is the driver for the hardware watchdog on the PC87413 chipset1458 This watchdog simply watches your kernel to make sure it doesn't1459 freeze, and if it does, it reboots your computer after a certain1460 amount of time.1461 1462 To compile this driver as a module, choose M here: the1463 module will be called pc87413_wdt.1464 1465 Most people will say N.1466 1467config NV_TCO1468 tristate "nVidia TCO Timer/Watchdog"1469 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT1470 help1471 Hardware driver for the TCO timer built into the nVidia Hub family1472 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a1473 watchdog timer that will reboot the machine after its second1474 expiration. The expiration time can be configured with the1475 "heartbeat" parameter.1476 1477 On some motherboards the driver may fail to reset the chipset's1478 NO_REBOOT flag which prevents the watchdog from rebooting the1479 machine. If this is the case you will get a kernel message like1480 "failed to reset NO_REBOOT flag, reboot disabled by hardware".1481 1482 To compile this driver as a module, choose M here: the1483 module will be called nv_tco.1484 1485config RDC321X_WDT1486 tristate "RDC R-321x SoC watchdog"1487 depends on X86_RDC321X || COMPILE_TEST1488 depends on PCI1489 help1490 This is the driver for the built in hardware watchdog1491 in the RDC R-321x SoC.1492 1493 To compile this driver as a module, choose M here: the1494 module will be called rdc321x_wdt.1495 1496config 60XX_WDT1497 tristate "SBC-60XX Watchdog Timer"1498 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1499 help1500 This driver can be used with the watchdog timer found on some1501 single board computers, namely the 6010 PII based computer.1502 It may well work with other cards. It reads port 0x443 to enable1503 and re-set the watchdog timer, and reads port 0x45 to disable1504 the watchdog. If you have a card that behave in similar ways,1505 you can probably make this driver work with your card as well.1506 1507 You can compile this driver directly into the kernel, or use1508 it as a module. The module will be called sbc60xxwdt.1509 1510config SBC8360_WDT1511 tristate "SBC8360 Watchdog Timer"1512 depends on X86_321513 help1514 1515 This is the driver for the hardware watchdog on the SBC8360 Single1516 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).1517 1518 To compile this driver as a module, choose M here: the1519 module will be called sbc8360.1520 1521 Most people will say N.1522 1523config SBC7240_WDT1524 tristate "SBC Nano 7240 Watchdog Timer"1525 depends on X86_32 && !UML1526 help1527 This is the driver for the hardware watchdog found on the IEI1528 single board computers EPIC Nano 7240 (and likely others). This1529 watchdog simply watches your kernel to make sure it doesn't freeze,1530 and if it does, it reboots your computer after a certain amount of1531 time.1532 1533 To compile this driver as a module, choose M here: the1534 module will be called sbc7240_wdt.1535 1536config CPU5_WDT1537 tristate "SMA CPU5 Watchdog"1538 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1539 help1540 TBD.1541 To compile this driver as a module, choose M here: the1542 module will be called cpu5wdt.1543 1544config SMSC_SCH311X_WDT1545 tristate "SMSC SCH311X Watchdog Timer"1546 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1547 help1548 This is the driver for the hardware watchdog timer on the1549 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset1550 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple1551 serial ports).1552 1553 To compile this driver as a module, choose M here: the1554 module will be called sch311x_wdt.1555 1556config SMSC37B787_WDT1557 tristate "Winbond SMsC37B787 Watchdog Timer"1558 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1559 help1560 This is the driver for the hardware watchdog component on the1561 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard1562 from Vision Systems and maybe others.1563 1564 This watchdog simply watches your kernel to make sure it doesn't1565 freeze, and if it does, it reboots your computer after a certain1566 amount of time.1567 1568 Usually a userspace daemon will notify the kernel WDT driver that1569 userspace is still alive, at regular intervals.1570 1571 To compile this driver as a module, choose M here: the1572 module will be called smsc37b787_wdt.1573 1574 Most people will say N.1575 1576config TQMX86_WDT1577 tristate "TQ-Systems TQMX86 Watchdog Timer"1578 depends on X86 || COMPILE_TEST1579 select WATCHDOG_CORE1580 help1581 This is the driver for the hardware watchdog timer in the TQMX86 IO1582 controller found on some of their ComExpress Modules.1583 1584 To compile this driver as a module, choose M here; the module1585 will be called tqmx86_wdt.1586 1587 Most people will say N.1588 1589config VIA_WDT1590 tristate "VIA Watchdog Timer"1591 depends on (X86 || COMPILE_TEST) && PCI1592 select WATCHDOG_CORE1593 help1594 This is the driver for the hardware watchdog timer on VIA1595 southbridge chipset CX700, VX800/VX820 or VX855/VX875.1596 1597 To compile this driver as a module, choose M here; the module1598 will be called via_wdt.1599 1600 Most people will say N.1601 1602config W83627HF_WDT1603 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"1604 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1605 select WATCHDOG_CORE1606 help1607 This is the driver for the hardware watchdog on the following1608 Super I/O chips.1609 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG1610 W83637HF1611 W83667HG/HG-B1612 W83687THF1613 W83697HF1614 W83697UG1615 NCT67751616 NCT67761617 NCT67791618 NCT67911619 NCT67921620 NCT6102D/04D/06D1621 NCT6116D1622 1623 This watchdog simply watches your kernel to make sure it doesn't1624 freeze, and if it does, it reboots your computer after a certain1625 amount of time.1626 1627 To compile this driver as a module, choose M here: the1628 module will be called w83627hf_wdt.1629 1630 Most people will say N.1631 1632config W83877F_WDT1633 tristate "W83877F (EMACS) Watchdog Timer"1634 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1635 help1636 This is the driver for the hardware watchdog on the W83877F chipset1637 as used in EMACS PC-104 motherboards (and likely others). This1638 watchdog simply watches your kernel to make sure it doesn't freeze,1639 and if it does, it reboots your computer after a certain amount of1640 time.1641 1642 To compile this driver as a module, choose M here: the1643 module will be called w83877f_wdt.1644 1645 Most people will say N.1646 1647config W83977F_WDT1648 tristate "W83977F (PCM-5335) Watchdog Timer"1649 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1650 help1651 This is the driver for the hardware watchdog on the W83977F I/O chip1652 as used in AAEON's PCM-5335 SBC (and likely others). This1653 watchdog simply watches your kernel to make sure it doesn't freeze,1654 and if it does, it reboots your computer after a certain amount of1655 time.1656 1657 To compile this driver as a module, choose M here: the1658 module will be called w83977f_wdt.1659 1660config MACHZ_WDT1661 tristate "ZF MachZ Watchdog"1662 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1663 help1664 If you are using a ZF Micro MachZ processor, say Y here, otherwise1665 N. This is the driver for the watchdog timer built-in on that1666 processor using ZF-Logic interface. This watchdog simply watches1667 your kernel to make sure it doesn't freeze, and if it does, it1668 reboots your computer after a certain amount of time.1669 1670 To compile this driver as a module, choose M here: the1671 module will be called machzwd.1672 1673config SBC_EPX_C3_WATCHDOG1674 tristate "Winsystems SBC EPX-C3 watchdog"1675 depends on (X86 || COMPILE_TEST) && HAS_IOPORT1676 help1677 This is the driver for the built-in watchdog timer on the EPX-C31678 Single-board computer made by Winsystems, Inc.1679 1680 *Note*: This hardware watchdog is not probeable and thus there1681 is no way to know if writing to its IO address will corrupt1682 your system or have any real effect. The only way to be sure1683 that this driver does what you want is to make sure you1684 are running it on an EPX-C3 from Winsystems with the watchdog1685 timer at IO address 0x1ee and 0x1ef. It will write to both those1686 IO ports. Basically, the assumption is made that if you compile1687 this driver into your kernel and/or load it as a module, that you1688 know what you are doing and that you are in fact running on an1689 EPX-C3 board!1690 1691 To compile this driver as a module, choose M here: the1692 module will be called sbc_epx_c3.1693 1694config INTEL_MEI_WDT1695 tristate "Intel MEI iAMT Watchdog"1696 depends on INTEL_MEI && X861697 select WATCHDOG_CORE1698 help1699 A device driver for the Intel MEI iAMT watchdog.1700 1701 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.1702 Whenever the OS hangs or crashes, iAMT will send an event1703 to any subscriber to this event. The watchdog doesn't reset the1704 the platform.1705 1706 To compile this driver as a module, choose M here:1707 the module will be called mei_wdt.1708 1709config NI903X_WDT1710 tristate "NI 903x/913x Watchdog"1711 depends on X86 && ACPI1712 select WATCHDOG_CORE1713 help1714 This is the driver for the watchdog timer on the National Instruments1715 903x/913x real-time controllers.1716 1717 To compile this driver as a module, choose M here: the module will be1718 called ni903x_wdt.1719 1720config NIC7018_WDT1721 tristate "NIC7018 Watchdog"1722 depends on X86 && ACPI1723 select WATCHDOG_CORE1724 help1725 Support for National Instruments NIC7018 Watchdog.1726 1727 To compile this driver as a module, choose M here: the module will be1728 called nic7018_wdt.1729 1730config SIEMENS_SIMATIC_IPC_WDT1731 tristate "Siemens Simatic IPC Watchdog"1732 depends on SIEMENS_SIMATIC_IPC && PCI1733 default y1734 select WATCHDOG_CORE1735 select P2SB if X861736 help1737 This driver adds support for several watchdogs found in Industrial1738 PCs from Siemens.1739 1740 To compile this driver as a module, choose M here: the module will be1741 called simatic-ipc-wdt.1742 1743# M68K Architecture1744 1745config M54xx_WATCHDOG1746 tristate "MCF54xx watchdog support"1747 depends on M548x1748 help1749 To compile this driver as a module, choose M here: the1750 module will be called m54xx_wdt.1751 1752# MicroBlaze Architecture1753 1754# MIPS Architecture1755 1756config ATH79_WDT1757 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"1758 depends on ATH79 || (ARM && COMPILE_TEST)1759 help1760 Hardware driver for the built-in watchdog timer on the Atheros1761 AR71XX/AR724X/AR913X SoCs.1762 1763config BCM47XX_WDT1764 tristate "Broadcom BCM47xx Watchdog Timer"1765 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST1766 select WATCHDOG_CORE1767 help1768 Hardware driver for the Broadcom BCM47xx Watchdog Timer.1769 1770config RC32434_WDT1771 tristate "IDT RC32434 SoC Watchdog Timer"1772 depends on MIKROTIK_RB5321773 help1774 Hardware driver for the IDT RC32434 SoC built-in1775 watchdog timer.1776 1777 To compile this driver as a module, choose M here: the1778 module will be called rc32434_wdt.1779 1780config INDYDOG1781 tristate "Indy/I2 Hardware Watchdog"1782 depends on SGI_HAS_INDYDOG1783 help1784 Hardware driver for the Indy's/I2's watchdog. This is a1785 watchdog timer that will reboot the machine after a 60 second1786 timer expired and no process has written to /dev/watchdog during1787 that time.1788 1789config JZ4740_WDT1790 tristate "Ingenic jz4740 SoC hardware watchdog"1791 depends on MIPS || COMPILE_TEST1792 depends on COMMON_CLK1793 select WATCHDOG_CORE1794 select MFD_SYSCON1795 help1796 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.1797 1798config WDT_MTX11799 tristate "MTX-1 Hardware Watchdog"1800 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)1801 help1802 Hardware driver for the MTX-1 boards. This is a watchdog timer that1803 will reboot the machine after a 100 seconds timer expired.1804 1805config SIBYTE_WDOG1806 tristate "Sibyte SoC hardware watchdog"1807 depends on CPU_SB11808 help1809 Watchdog driver for the built in watchdog hardware in Sibyte1810 SoC processors. There are apparently two watchdog timers1811 on such processors; this driver supports only the first one,1812 because currently Linux only supports exporting one watchdog1813 to userspace.1814 1815 To compile this driver as a loadable module, choose M here.1816 The module will be called sb_wdog.1817 1818config TXX9_WDT1819 tristate "Toshiba TXx9 Watchdog Timer"1820 depends on CPU_TX49XX || (MIPS && COMPILE_TEST)1821 select WATCHDOG_CORE1822 help1823 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.1824 1825config OCTEON_WDT1826 tristate "Cavium OCTEON SOC family Watchdog Timer"1827 depends on CAVIUM_OCTEON_SOC1828 default y1829 select WATCHDOG_CORE1830 select EXPORT_UASM if OCTEON_WDT = m1831 help1832 Hardware driver for OCTEON's on chip watchdog timer.1833 Enables the watchdog for all cores running Linux. It1834 installs a NMI handler and pokes the watchdog based on an1835 interrupt. On first expiration of the watchdog, the1836 interrupt handler pokes it. The second expiration causes an1837 NMI that prints a message. The third expiration causes a1838 global soft reset.1839 1840 When userspace has /dev/watchdog open, no poking is done1841 from the first interrupt, it is then only poked when the1842 device is written.1843 1844config MARVELL_GTI_WDT1845 tristate "Marvell GTI Watchdog driver"1846 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)1847 default y1848 select WATCHDOG_CORE1849 help1850 Marvell GTI hardware supports watchdog timer. First timeout1851 works as watchdog pretimeout and installed interrupt handler1852 will be called on first timeout. Hardware can generate interrupt1853 to SCP on second timeout but it is not enabled, so second1854 timeout is ignored. If device poke does not happen then system1855 will reboot on third timeout.1856 1857config BCM2835_WDT1858 tristate "Broadcom BCM2835 hardware watchdog"1859 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)1860 select WATCHDOG_CORE1861 help1862 Watchdog driver for the built in watchdog hardware in Broadcom1863 BCM2835 SoC.1864 1865 To compile this driver as a loadable module, choose M here.1866 The module will be called bcm2835_wdt.1867 1868config BCM_KONA_WDT1869 tristate "BCM Kona Watchdog"1870 depends on ARCH_BCM_MOBILE || COMPILE_TEST1871 select WATCHDOG_CORE1872 help1873 Support for the watchdog timer on the following Broadcom BCM281xx1874 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and1875 BCM28155 variants.1876 1877 Say 'Y' or 'M' here to enable the driver. The module will be called1878 bcm_kona_wdt.1879 1880config BCM_KONA_WDT_DEBUG1881 bool "DEBUGFS support for BCM Kona Watchdog"1882 depends on BCM_KONA_WDT || COMPILE_TEST1883 help1884 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides1885 access to the driver's internal data structures as well as watchdog1886 timer hardware registres.1887 1888 If in doubt, say 'N'.1889 1890config BCM7038_WDT1891 tristate "BCM63xx/BCM7038 Watchdog"1892 select WATCHDOG_CORE1893 depends on HAS_IOMEM1894 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST1895 help1896 Watchdog driver for the built-in hardware in Broadcom 7038 and1897 later SoCs used in set-top boxes. BCM7038 was made public1898 during the 2004 CES, and since then, many Broadcom chips use this1899 watchdog block, including some cable modem chips and DSL (63xx)1900 chips.1901 1902config IMGPDC_WDT1903 tristate "Imagination Technologies PDC Watchdog Timer"1904 depends on HAS_IOMEM1905 depends on MIPS || COMPILE_TEST1906 select WATCHDOG_CORE1907 help1908 Driver for Imagination Technologies PowerDown Controller1909 Watchdog Timer.1910 1911 To compile this driver as a loadable module, choose M here.1912 The module will be called imgpdc_wdt.1913 1914config LANTIQ_WDT1915 tristate "Lantiq SoC watchdog"1916 depends on LANTIQ1917 select WATCHDOG_CORE1918 help1919 Hardware driver for the Lantiq SoC Watchdog Timer.1920 1921config LOONGSON1_WDT1922 tristate "Loongson1 SoC hardware watchdog"1923 depends on MACH_LOONGSON32 || COMPILE_TEST1924 select WATCHDOG_CORE1925 help1926 Hardware driver for the Loongson1 SoC Watchdog Timer.1927 1928config RALINK_WDT1929 tristate "Ralink SoC watchdog"1930 select WATCHDOG_CORE1931 depends on RALINK1932 help1933 Hardware driver for the Ralink SoC Watchdog Timer.1934 1935config GXP_WATCHDOG1936 tristate "HPE GXP watchdog support"1937 depends on ARCH_HPE_GXP || COMPILE_TEST1938 select WATCHDOG_CORE1939 help1940 Say Y here to include support for the watchdog timer1941 in HPE GXP SoCs.1942 1943 To compile this driver as a module, choose M here.1944 The module will be called gxp-wdt.1945 1946config MT7621_WDT1947 tristate "Mediatek SoC watchdog"1948 select WATCHDOG_CORE1949 select REGMAP_MMIO1950 select MFD_SYSCON1951 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST1952 help1953 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.1954 1955config PIC32_WDT1956 tristate "Microchip PIC32 hardware watchdog"1957 select WATCHDOG_CORE1958 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)1959 help1960 Watchdog driver for the built in watchdog hardware in a PIC32.1961 1962 Configuration bits must be set appropriately for the watchdog to be1963 controlled by this driver.1964 1965 To compile this driver as a loadable module, choose M here.1966 The module will be called pic32-wdt.1967 1968config PIC32_DMT1969 tristate "Microchip PIC32 Deadman Timer"1970 select WATCHDOG_CORE1971 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)1972 help1973 Watchdog driver for PIC32 instruction fetch counting timer. This1974 specific timer is typically be used in mission critical and safety1975 critical applications, where any single failure of the software1976 functionality and sequencing must be detected.1977 1978 To compile this driver as a loadable module, choose M here.1979 The module will be called pic32-dmt.1980 1981# PARISC Architecture1982 1983# POWERPC Architecture1984 1985config GEF_WDT1986 tristate "GE Watchdog Timer"1987 depends on GE_FPGA1988 help1989 Watchdog timer found in a number of GE single board computers.1990 1991config MPC5200_WDT1992 bool "MPC52xx Watchdog Timer"1993 depends on PPC_MPC52xx || COMPILE_TEST1994 help1995 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.1996 1997config 8xxx_WDT1998 tristate "MPC8xxx Platform Watchdog Timer"1999 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x2000 select WATCHDOG_CORE2001 help2002 This driver is for a SoC level watchdog that exists on some2003 Freescale PowerPC processors. So far this driver supports:2004 - MPC8xx watchdogs2005 - MPC83xx watchdogs2006 - MPC86xx watchdogs2007 2008 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.2009 2010config PIKA_WDT2011 tristate "PIKA FPGA Watchdog"2012 depends on WARP || (PPC64 && COMPILE_TEST)2013 default y2014 help2015 This enables the watchdog in the PIKA FPGA. Currently used on2016 the Warp platform.2017 2018config BOOKE_WDT2019 tristate "PowerPC Book-E Watchdog Timer"2020 depends on BOOKE || 4xx2021 select WATCHDOG_CORE2022 help2023 Watchdog driver for PowerPC Book-E chips, such as the Freescale2024 MPC85xx SOCs and the IBM PowerPC 440.2025 2026 Please see Documentation/watchdog/watchdog-api.rst for2027 more information.2028 2029config BOOKE_WDT_DEFAULT_TIMEOUT2030 int "PowerPC Book-E Watchdog Timer Default Timeout"2031 depends on BOOKE_WDT2032 default 38 if PPC_E5002033 range 0 63 if PPC_E5002034 default 3 if !PPC_E5002035 range 0 3 if !PPC_E5002036 help2037 Select the default watchdog timer period to be used by the PowerPC2038 Book-E watchdog driver. A watchdog "event" occurs when the bit2039 position represented by this number transitions from zero to one.2040 2041 For Freescale Book-E processors, this is a number between 0 and 63.2042 For other Book-E processors, this is a number between 0 and 3.2043 2044 The value can be overridden by the wdt_period command-line parameter.2045 2046config MEN_A21_WDT2047 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"2048 select WATCHDOG_CORE2049 depends on GPIOLIB || COMPILE_TEST2050 help2051 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.2052 2053 The driver can also be built as a module. If so, the module will be2054 called mena21_wdt.2055 2056 If unsure select N here.2057 2058# PPC64 Architecture2059 2060config PSERIES_WDT2061 tristate "POWER Architecture Platform Watchdog Timer"2062 depends on PPC_PSERIES2063 select WATCHDOG_CORE2064 help2065 Driver for virtual watchdog timers provided by PAPR2066 hypervisors (e.g. PowerVM, KVM).2067 2068config WATCHDOG_RTAS2069 tristate "RTAS watchdog"2070 depends on PPC_RTAS2071 help2072 This driver adds watchdog support for the RTAS watchdog.2073 2074 To compile this driver as a module, choose M here. The module2075 will be called wdrtas.2076 2077# RISC-V Architecture2078 2079config STARFIVE_WATCHDOG2080 tristate "StarFive Watchdog support"2081 depends on ARCH_STARFIVE || COMPILE_TEST2082 select WATCHDOG_CORE2083 default ARCH_STARFIVE2084 help2085 Say Y here to support the watchdog of StarFive JH7100 and JH71102086 SoC. This driver can also be built as a module if choose M.2087 2088# S390 Architecture2089 2090config DIAG288_WATCHDOG2091 tristate "System z diag288 Watchdog"2092 depends on S3902093 select WATCHDOG_CORE2094 help2095 IBM s/390 and zSeries machines running under z/VM 5.1 or later2096 provide a virtual watchdog timer to their guest that cause a2097 user define Control Program command to be executed after a2098 timeout.2099 LPAR provides a very similar interface. This driver handles2100 both.2101 2102 To compile this driver as a module, choose M here. The module2103 will be called diag288_wdt.2104 2105# SUPERH (sh + sh64) Architecture2106 2107config SH_WDT2108 tristate "SuperH Watchdog"2109 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)2110 select WATCHDOG_CORE2111 help2112 This driver adds watchdog support for the integrated watchdog in the2113 SuperH processors. If you have one of these processors and wish2114 to have watchdog support enabled, say Y, otherwise say N.2115 2116 As a side note, saying Y here will automatically boost HZ to 10002117 so that the timer has a chance to clear the overflow counter. On2118 slower systems (such as the SH-2 and SH-3) this will likely yield2119 some performance issues. As such, the WDT should be avoided here2120 unless it is absolutely necessary.2121 2122 To compile this driver as a module, choose M here: the2123 module will be called shwdt.2124 2125# SPARC Architecture2126 2127# SPARC64 Architecture2128 2129config WATCHDOG_CP1XXX2130 tristate "CP1XXX Hardware Watchdog support"2131 depends on SPARC64 && PCI2132 help2133 This is the driver for the hardware watchdog timers present on2134 Sun Microsystems CompactPCI models CP1400 and CP1500.2135 2136 To compile this driver as a module, choose M here: the2137 module will be called cpwatchdog.2138 2139 If you do not have a CompactPCI model CP1400 or CP1500, or2140 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,2141 you should say N to this option.2142 2143config WATCHDOG_RIO2144 tristate "RIO Hardware Watchdog support"2145 depends on SPARC64 && PCI2146 help2147 Say Y here to support the hardware watchdog capability on Sun RIO2148 machines. The watchdog timeout period is normally one minute but2149 can be changed with a boot-time parameter.2150 2151config WATCHDOG_SUN4V2152 tristate "Sun4v Watchdog support"2153 select WATCHDOG_CORE2154 depends on SPARC642155 help2156 Say Y here to support the hypervisor watchdog capability embedded2157 in the SPARC sun4v architecture.2158 2159 To compile this driver as a module, choose M here. The module will2160 be called sun4v_wdt.2161 2162# XTENSA Architecture2163 2164# Xen Architecture2165 2166config XEN_WDT2167 tristate "Xen Watchdog support"2168 depends on XEN2169 select WATCHDOG_CORE2170 help2171 Say Y here to support the hypervisor watchdog capability provided2172 by Xen 4.0 and newer. The watchdog timeout period is normally one2173 minute but can be changed with a boot-time parameter.2174 2175config UML_WATCHDOG2176 tristate "UML watchdog"2177 depends on UML || COMPILE_TEST2178 2179#2180# ISA-based Watchdog Cards2181#2182 2183comment "ISA-based Watchdog Cards"2184 depends on ISA2185 2186config PCWATCHDOG2187 tristate "Berkshire Products ISA-PC Watchdog"2188 depends on ISA2189 help2190 This is the driver for the Berkshire Products ISA-PC Watchdog card.2191 This card simply watches your kernel to make sure it doesn't freeze,2192 and if it does, it reboots your computer after a certain amount of2193 time. This driver is like the WDT501 driver but for different2194 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.2195 The PC watchdog cards can be ordered from <http://www.berkprod.com/>.2196 2197 To compile this driver as a module, choose M here: the2198 module will be called pcwd.2199 2200 Most people will say N.2201 2202config MIXCOMWD2203 tristate "Mixcom Watchdog"2204 depends on ISA2205 help2206 This is a driver for the Mixcom hardware watchdog cards. This2207 watchdog simply watches your kernel to make sure it doesn't freeze,2208 and if it does, it reboots your computer after a certain amount of2209 time.2210 2211 To compile this driver as a module, choose M here: the2212 module will be called mixcomwd.2213 2214 Most people will say N.2215 2216config WDT2217 tristate "WDT Watchdog timer"2218 depends on ISA2219 help2220 If you have a WDT500P or WDT501P watchdog board, say Y here,2221 otherwise N. It is not possible to probe for this board, which means2222 that you have to inform the kernel about the IO port and IRQ that2223 is needed (you can do this via the io and irq parameters)2224 2225 To compile this driver as a module, choose M here: the2226 module will be called wdt.2227 2228#2229# PCI-based Watchdog Cards2230#2231 2232comment "PCI-based Watchdog Cards"2233 depends on PCI2234 2235config PCIPCWATCHDOG2236 tristate "Berkshire Products PCI-PC Watchdog"2237 depends on PCI && HAS_IOPORT2238 help2239 This is the driver for the Berkshire Products PCI-PC Watchdog card.2240 This card simply watches your kernel to make sure it doesn't freeze,2241 and if it does, it reboots your computer after a certain amount of2242 time. The card can also monitor the internal temperature of the PC.2243 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.2244 2245 To compile this driver as a module, choose M here: the2246 module will be called pcwd_pci.2247 2248 Most people will say N.2249 2250config WDTPCI2251 tristate "PCI-WDT500/501 Watchdog timer"2252 depends on PCI && HAS_IOPORT2253 help2254 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.2255 2256 If you have a PCI-WDT501 watchdog board then you can enable the2257 temperature sensor by setting the type parameter to 501.2258 2259 If you want to enable the Fan Tachometer on the PCI-WDT501, then you2260 can do this via the tachometer parameter. Only do this if you have a2261 fan tachometer actually set up.2262 2263 To compile this driver as a module, choose M here: the2264 module will be called wdt_pci.2265 2266#2267# USB-based Watchdog Cards2268#2269 2270comment "USB-based Watchdog Cards"2271 depends on USB2272 2273config USBPCWATCHDOG2274 tristate "Berkshire Products USB-PC Watchdog"2275 depends on USB2276 help2277 This is the driver for the Berkshire Products USB-PC Watchdog card.2278 This card simply watches your kernel to make sure it doesn't freeze,2279 and if it does, it reboots your computer after a certain amount of2280 time. The card can also monitor the internal temperature of the PC.2281 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.2282 2283 To compile this driver as a module, choose M here: the2284 module will be called pcwd_usb.2285 2286 Most people will say N.2287 2288config KEEMBAY_WATCHDOG2289 tristate "Intel Keem Bay SoC non-secure watchdog"2290 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)2291 select WATCHDOG_CORE2292 help2293 This option enable support for an In-secure watchdog timer driver for2294 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every2295 count unit. An interrupt will be triggered, when the count crosses2296 the threshold configured in the register.2297 2298 To compile this driver as a module, choose M here: the2299 module will be called keembay_wdt.2300 2301endif # WATCHDOG2302