1# SPDX-License-Identifier: GPL-2.0-only 2 3# 4# Watchdog device configuration 5# 6 7menuconfig WATCHDOG 8 bool "Watchdog Timer Support" 9 help 10 If you say Y here (and to one of the following options) and create a 11 character special file /dev/watchdog with major number 10 and minor 12 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 for 14 longer than 1 minute will result in rebooting the machine. This 15 could be useful for a networked machine that needs to come back 16 on-line as fast as possible after a lock-up. There's both a watchdog 17 implementation entirely in software (which can sometimes fail to 18 reboot the machine) and a driver for hardware watchdog boards, which 19 are more robust and can also keep track of the temperature inside 20 your computer. For details, read 21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source. 22 23 The watchdog is usually used together with the watchdog daemon 24 which is available from 25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon 26 can also monitor NFS connections and can reboot the machine when the 27 process table is full. 28 29 If unsure, say N. 30 31if WATCHDOG 32 33config WATCHDOG_CORE 34 tristate "WatchDog Timer Driver Core" 35 help 36 Say Y here if you want to use the new watchdog timer driver core. 37 This driver provides a framework for all watchdog timer drivers 38 and gives them the /dev/watchdog interface (and later also the 39 sysfs interface). 40 41config WATCHDOG_NOWAYOUT 42 bool "Disable watchdog shutdown on close" 43 help 44 The default watchdog behaviour (which you get if you say N here) is 45 to stop the timer if the process managing it closes the file 46 /dev/watchdog. It's always remotely possible that this process might 47 get killed. If you say Y here, the watchdog cannot be stopped once 48 it has been started. 49 50config WATCHDOG_HANDLE_BOOT_ENABLED 51 bool "Update boot-enabled watchdog until userspace takes over" 52 default y 53 help 54 The default watchdog behaviour (which you get if you say Y here) is 55 to ping watchdog devices that were enabled before the driver has 56 been loaded until control is taken over from userspace using the 57 /dev/watchdog file. If you say N here, the kernel will not update 58 the watchdog on its own. Thus if your userspace does not start fast 59 enough your device will reboot. 60 61config WATCHDOG_OPEN_TIMEOUT 62 int "Timeout value for opening watchdog device" 63 default 0 64 help 65 The maximum time, in seconds, for which the watchdog framework takes 66 care of pinging a hardware watchdog. A value of 0 means infinite. The 67 value set here can be overridden by the commandline parameter 68 "watchdog.open_timeout". 69 70config WATCHDOG_SYSFS 71 bool "Read different watchdog information through sysfs" 72 help 73 Say Y here if you want to enable watchdog device status read through 74 sysfs attributes. 75 76config WATCHDOG_HRTIMER_PRETIMEOUT 77 bool "Enable watchdog hrtimer-based pretimeouts" 78 help 79 Enable this if you want to use a hrtimer timer based pretimeout for 80 watchdogs that do not natively support pretimeout support. Be aware 81 that because this pretimeout functionality uses hrtimers, it may not 82 be able to fire before the actual watchdog fires in some situations. 83 84comment "Watchdog Pretimeout Governors" 85 86config WATCHDOG_PRETIMEOUT_GOV 87 bool "Enable watchdog pretimeout governors" 88 depends on WATCHDOG_CORE 89 help 90 The option allows to select watchdog pretimeout governors. 91 92config WATCHDOG_PRETIMEOUT_GOV_SEL 93 tristate 94 depends on WATCHDOG_PRETIMEOUT_GOV 95 default m 96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 97 98if WATCHDOG_PRETIMEOUT_GOV 99 100config WATCHDOG_PRETIMEOUT_GOV_NOOP 101 tristate "Noop watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Noop watchdog pretimeout governor, only an informational 106 message is added to kernel log buffer. 107 108config WATCHDOG_PRETIMEOUT_GOV_PANIC 109 tristate "Panic watchdog pretimeout governor" 110 depends on WATCHDOG_CORE 111 default WATCHDOG_CORE 112 help 113 Panic watchdog pretimeout governor, on watchdog pretimeout 114 event put the kernel into panic. 115 116choice 117 prompt "Default Watchdog Pretimeout Governor" 118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 119 help 120 This option selects a default watchdog pretimeout governor. 121 The governor takes its action, if a watchdog is capable 122 to report a pretimeout event. 123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 125 bool "noop" 126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 127 help 128 Use noop watchdog pretimeout governor by default. If noop 129 governor is selected by a user, write a short message to 130 the kernel log buffer and don't do any system changes. 131 132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 133 bool "panic" 134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 135 help 136 Use panic watchdog pretimeout governor by default, if 137 a watchdog pretimeout event happens, consider that 138 a watchdog feeder is dead and reboot is unavoidable. 139 140endchoice 141 142endif # WATCHDOG_PRETIMEOUT_GOV 143 144# 145# General Watchdog drivers 146# 147 148comment "Watchdog Device Drivers" 149 150# Architecture Independent 151 152config SOFT_WATCHDOG 153 tristate "Software watchdog" 154 select WATCHDOG_CORE 155 help 156 A software monitoring watchdog. This will fail to reboot your system 157 from some situations that the hardware watchdog will recover 158 from. Equally it's a lot cheaper to install. 159 160 To compile this driver as a module, choose M here: the 161 module will be called softdog. 162 163config SOFT_WATCHDOG_PRETIMEOUT 164 bool "Software watchdog pretimeout governor support" 165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 166 help 167 Enable this if you want to use pretimeout governors with the software 168 watchdog. Be aware that governors might affect the watchdog because it 169 is purely software, e.g. the panic governor will stall it! 170 171config BD957XMUF_WATCHDOG 172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 173 depends on MFD_ROHM_BD957XMUF 174 select WATCHDOG_CORE 175 help 176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 177 These PMIC ICs contain watchdog block which can be configured 178 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 BD9573 181 watchdog. Alternatively say M to compile the driver as a module, 182 which will be called bd9576_wdt. 183 184config BD96801_WATCHDOG 185 tristate "ROHM BD96801 PMIC Watchdog" 186 depends on MFD_ROHM_BD96801 187 select WATCHDOG_CORE 188 help 189 Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be 190 configured to only generate IRQ or to trigger system reset via reset 191 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_WATCHDOG 198 tristate "ChromeOS EC-based watchdog" 199 select WATCHDOG_CORE 200 depends on CROS_EC 201 help 202 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: the 206 module will be called cros_ec_wdt. 207 208config DA9052_WATCHDOG 209 tristate "Dialog DA9052 Watchdog" 210 depends on PMIC_DA9052 || COMPILE_TEST 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 214 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_WATCHDOG 221 tristate "Dialog Semiconductor DA9055 Watchdog" 222 depends on MFD_DA9055 || COMPILE_TEST 223 select WATCHDOG_CORE 224 help 225 If you say yes here you get support for watchdog on the Dialog 226 Semiconductor DA9055 PMIC. 227 228 This driver can also be built as a module. If so, the module 229 will be called da9055_wdt. 230 231config DA9063_WATCHDOG 232 tristate "Dialog DA9063 Watchdog" 233 depends on MFD_DA9063 || COMPILE_TEST 234 depends on I2C 235 select WATCHDOG_CORE 236 help 237 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_WATCHDOG 242 tristate "Dialog DA9062/61 Watchdog" 243 depends on MFD_DA9062 || COMPILE_TEST 244 depends on I2C 245 select WATCHDOG_CORE 246 help 247 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_WATCHDOG 252 tristate "Watchdog device controlled through GPIO-line" 253 depends on OF_GPIO 254 select WATCHDOG_CORE 255 help 256 If you say yes here you get support for watchdog device 257 controlled through GPIO-line. 258 259config GPIO_WATCHDOG_ARCH_INITCALL 260 bool "Register the watchdog as early as possible" 261 depends on GPIO_WATCHDOG=y 262 help 263 In some situations, the default initcall level (module_init) 264 in not early enough in the boot process to avoid the watchdog 265 to be triggered. 266 If you say yes here, the initcall level would be raised to 267 arch_initcall. 268 If in doubt, say N. 269 270config LENOVO_SE10_WDT 271 tristate "Lenovo SE10 Watchdog" 272 depends on (X86 && DMI) || COMPILE_TEST 273 depends on HAS_IOPORT 274 select WATCHDOG_CORE 275 help 276 If you say yes here you get support for the watchdog 277 functionality for the Lenovo SE10 platform. 278 279 This driver can also be built as a module. If so, the module 280 will be called lenovo-se10-wdt. 281 282config LENOVO_SE30_WDT 283 tristate "Lenovo SE30 Watchdog" 284 depends on (X86 && DMI) || COMPILE_TEST 285 depends on HAS_IOPORT 286 select WATCHDOG_CORE 287 help 288 If you say yes here you get support for the watchdog 289 functionality for the Lenovo SE30 platform. 290 291 This driver can also be built as a module. If so, the module 292 will be called lenovo-se30-wdt. 293 294config MENF21BMC_WATCHDOG 295 tristate "MEN 14F021P00 BMC Watchdog" 296 depends on MFD_MENF21BMC || COMPILE_TEST 297 depends on I2C 298 select WATCHDOG_CORE 299 help 300 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 301 302 This driver can also be built as a module. If so the module 303 will be called menf21bmc_wdt. 304 305config MENZ069_WATCHDOG 306 tristate "MEN 16Z069 Watchdog" 307 depends on MCB 308 select WATCHDOG_CORE 309 help 310 Say Y here to include support for the MEN 16Z069 Watchdog. 311 312 This driver can also be built as a module. If so the module 313 will be called menz069_wdt. 314 315config WDAT_WDT 316 tristate "ACPI Watchdog Action Table (WDAT)" 317 depends on ACPI 318 select WATCHDOG_CORE 319 select ACPI_WATCHDOG 320 help 321 This driver adds support for systems with ACPI Watchdog Action 322 Table (WDAT) table. Servers typically have this but it can be 323 found on some desktop machines as well. This driver will take 324 over the native iTCO watchdog driver found on many Intel CPUs. 325 326 To compile this driver as module, choose M here: the module will 327 be called wdat_wdt. 328 329config WM831X_WATCHDOG 330 tristate "WM831x watchdog" 331 depends on MFD_WM831X 332 select WATCHDOG_CORE 333 help 334 Support for the watchdog in the WM831x AudioPlus PMICs. When 335 the watchdog triggers the system will be reset. 336 337config WM8350_WATCHDOG 338 tristate "WM8350 watchdog" 339 depends on MFD_WM8350 340 select WATCHDOG_CORE 341 help 342 Support for the watchdog in the WM8350 AudioPlus PMIC. When 343 the watchdog triggers the system will be reset. 344 345config XILINX_WATCHDOG 346 tristate "Xilinx Watchdog timer" 347 depends on HAS_IOMEM 348 select WATCHDOG_CORE 349 help 350 Watchdog driver for the xps_timebase_wdt IP core. 351 352 To compile this driver as a module, choose M here: the 353 module will be called of_xilinx_wdt. 354 355config XILINX_WINDOW_WATCHDOG 356 tristate "Xilinx window watchdog timer" 357 depends on HAS_IOMEM 358 depends on ARM64 || COMPILE_TEST 359 select WATCHDOG_CORE 360 help 361 Window watchdog driver for the versal_wwdt IP core. 362 Window watchdog timer(WWDT) contains closed(first) and 363 open(second) window with 32 bit width. Write to the watchdog 364 timer within predefined window periods of time. This means 365 a period that is not too soon and a period that is not too 366 late. The WWDT has to be restarted within the open window time. 367 If software tries to restart WWDT outside of the open window 368 time period, it generates a reset. 369 370 To compile this driver as a module, choose M here: the 371 module will be called xilinx_wwdt. 372 373config ZIIRAVE_WATCHDOG 374 tristate "Zodiac RAVE Watchdog Timer" 375 depends on I2C 376 select WATCHDOG_CORE 377 help 378 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 379 Processor. 380 381 To compile this driver as a module, choose M here: the 382 module will be called ziirave_wdt. 383 384config RAVE_SP_WATCHDOG 385 tristate "RAVE SP Watchdog timer" 386 depends on RAVE_SP_CORE 387 depends on NVMEM || !NVMEM 388 select WATCHDOG_CORE 389 help 390 Support for the watchdog on RAVE SP device. 391 392config MLX_WDT 393 tristate "Mellanox Watchdog" 394 depends on MELLANOX_PLATFORM || COMPILE_TEST 395 select WATCHDOG_CORE 396 select REGMAP 397 help 398 This is the driver for the hardware watchdog on Mellanox systems. 399 If you are going to use it, say Y here, otherwise N. 400 This driver can be used together with the watchdog daemon. 401 It can also watch your kernel to make sure it doesn't freeze, 402 and if it does, it reboots your system after a certain amount of 403 time. 404 405 To compile this driver as a module, choose M here: the 406 module will be called mlx-wdt. 407 408config SL28CPLD_WATCHDOG 409 tristate "Kontron sl28cpld Watchdog" 410 depends on MFD_SL28CPLD || COMPILE_TEST 411 select WATCHDOG_CORE 412 help 413 Say Y here to include support for the watchdog timer 414 on the Kontron sl28 CPLD. 415 416 To compile this driver as a module, choose M here: the 417 module will be called sl28cpld_wdt. 418 419# ALPHA Architecture 420 421# ARM Architecture 422 423config AIROHA_WATCHDOG 424 tristate "Airoha EN7581 Watchdog" 425 depends on ARCH_AIROHA || COMPILE_TEST 426 select WATCHDOG_CORE 427 help 428 Watchdog timer embedded into Airoha SoC. This will reboot your 429 system when the timeout is reached. 430 431config ARM_SP805_WATCHDOG 432 tristate "ARM SP805 Watchdog" 433 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 434 select WATCHDOG_CORE 435 help 436 ARM Primecell SP805 Watchdog timer. This will reboot your system when 437 the timeout is reached. 438 439config ARM_SBSA_WATCHDOG 440 tristate "ARM SBSA Generic Watchdog" 441 depends on ARM64 442 depends on ARM_ARCH_TIMER 443 select WATCHDOG_CORE 444 help 445 ARM SBSA Generic Watchdog has two stage timeouts: 446 the first signal (WS0) is for alerting the system by interrupt, 447 the second one (WS1) is a real hardware reset. 448 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 449 450 This driver can operate ARM SBSA Generic Watchdog as a single stage 451 or a two stages watchdog, it depends on the module parameter "action". 452 453 Note: the maximum timeout in the two stages mode is half of that in 454 the single stage mode. 455 456 To compile this driver as module, choose M here: The module 457 will be called sbsa_gwdt. 458 459config ARMADA_37XX_WATCHDOG 460 tristate "Armada 37xx watchdog" 461 depends on ARCH_MVEBU || COMPILE_TEST 462 depends on HAS_IOMEM 463 select MFD_SYSCON 464 select WATCHDOG_CORE 465 help 466 Say Y here to include support for the watchdog timer found on 467 Marvell Armada 37xx SoCs. 468 To compile this driver as a module, choose M here: the 469 module will be called armada_37xx_wdt. 470 471config ASM9260_WATCHDOG 472 tristate "Alphascale ASM9260 watchdog" 473 depends on MACH_ASM9260 || COMPILE_TEST 474 depends on OF 475 select WATCHDOG_CORE 476 select RESET_CONTROLLER 477 help 478 Watchdog timer embedded into Alphascale asm9260 chips. This will 479 reboot your system when the timeout is reached. 480 481config AT91RM9200_WATCHDOG 482 tristate "AT91RM9200 watchdog" 483 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 484 help 485 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 486 system when the timeout is reached. 487 488config AT91SAM9X_WATCHDOG 489 tristate "AT91SAM9X / AT91CAP9 watchdog" 490 depends on ARCH_AT91 || COMPILE_TEST 491 select WATCHDOG_CORE 492 help 493 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 494 reboot your system when the timeout is reached. 495 496config SAMA5D4_WATCHDOG 497 tristate "Atmel SAMA5D4 Watchdog Timer" 498 depends on ARCH_AT91 || COMPILE_TEST 499 select WATCHDOG_CORE 500 help 501 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 502 Its Watchdog Timer Mode Register can be written more than once. 503 This will reboot your system when the timeout is reached. 504 505config CADENCE_WATCHDOG 506 tristate "Cadence Watchdog Timer" 507 depends on HAS_IOMEM 508 select WATCHDOG_CORE 509 help 510 Say Y here if you want to include support for the watchdog 511 timer in the Xilinx Zynq. 512 513config 21285_WATCHDOG 514 tristate "DC21285 watchdog" 515 depends on FOOTBRIDGE 516 help 517 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 518 here if you wish to use this. Alternatively say M to compile the 519 driver as a module, which will be called wdt285. 520 521 This driver does not work on all machines. In particular, early CATS 522 boards have hardware problems that will cause the machine to simply 523 lock up if the watchdog fires. 524 525 "If in doubt, leave it out" - say N. 526 527config 977_WATCHDOG 528 tristate "NetWinder WB83C977 watchdog" 529 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 530 depends on HAS_IOPORT 531 help 532 Say Y here to include support for the WB977 watchdog included in 533 NetWinder machines. Alternatively say M to compile the driver as 534 a module, which will be called wdt977. 535 536 Not sure? It's safe to say N. 537 538config FTWDT010_WATCHDOG 539 tristate "Faraday Technology FTWDT010 watchdog" 540 depends on ARM || COMPILE_TEST 541 select WATCHDOG_CORE 542 default ARCH_GEMINI 543 help 544 Say Y here if to include support for the Faraday Technology 545 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 546 family of devices. 547 548 To compile this driver as a module, choose M here: the 549 module will be called ftwdt010_wdt. 550 551config IXP4XX_WATCHDOG 552 tristate "IXP4xx Watchdog" 553 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 554 select WATCHDOG_CORE 555 help 556 Say Y here if to include support for the watchdog timer 557 in the Intel IXP4xx network processors. This driver can 558 be built as a module by choosing M. The module will 559 be called ixp4xx_wdt. 560 561 Note: The internal IXP4xx watchdog does a soft CPU reset 562 which doesn't reset any peripherals. There are circumstances 563 where the watchdog will fail to reset the board correctly 564 (e.g., if the boot ROM is in an unreadable state). 565 566 Say N if you are unsure. 567 568config S3C2410_WATCHDOG 569 tristate "S3C6410/S5Pv210/Exynos Watchdog" 570 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 571 select WATCHDOG_CORE 572 select MFD_SYSCON if ARCH_EXYNOS 573 help 574 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 575 SoCs. This will reboot the system when the timer expires with 576 the watchdog enabled. 577 578 The driver is limited by the speed of the system's PCLK 579 signal, so with reasonably fast systems (PCLK around 50-66MHz) 580 then watchdog intervals of over approximately 20seconds are 581 unavailable. 582 583 Choose Y/M here only if you build for such Samsung SoC. 584 The driver can be built as a module by choosing M, and will 585 be called s3c2410_wdt. 586 587config SA1100_WATCHDOG 588 tristate "SA1100/PXA2xx watchdog" 589 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 590 help 591 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 592 reboot your system when timeout is reached. 593 594 NOTE: once enabled, this timer cannot be disabled. 595 596 To compile this driver as a module, choose M here: the 597 module will be called sa1100_wdt. 598 599config DW_WATCHDOG 600 tristate "Synopsys DesignWare watchdog" 601 depends on HAS_IOMEM 602 select WATCHDOG_CORE 603 help 604 Say Y here if to include support for the Synopsys DesignWare 605 watchdog timer found in many chips. 606 To compile this driver as a module, choose M here: the 607 module will be called dw_wdt. 608 609config EP93XX_WATCHDOG 610 tristate "EP93xx Watchdog" 611 depends on ARCH_EP93XX || COMPILE_TEST 612 select WATCHDOG_CORE 613 help 614 Say Y here if to include support for the watchdog timer 615 embedded in the Cirrus Logic EP93xx family of devices. 616 617 To compile this driver as a module, choose M here: the 618 module will be called ep93xx_wdt. 619 620config OMAP_WATCHDOG 621 tristate "OMAP Watchdog" 622 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 623 select WATCHDOG_CORE 624 help 625 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 626 Say 'Y' here to enable the 627 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 628 629config PNX4008_WATCHDOG 630 tristate "LPC32XX Watchdog" 631 depends on ARCH_LPC32XX || COMPILE_TEST 632 select WATCHDOG_CORE 633 help 634 Say Y here if to include support for the watchdog timer 635 in the LPC32XX processor. 636 This driver can be built as a module by choosing M. The module 637 will be called pnx4008_wdt. 638 639 Say N if you are unsure. 640 641config DAVINCI_WATCHDOG 642 tristate "DaVinci watchdog" 643 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 644 select WATCHDOG_CORE 645 help 646 Say Y here if to include support for the watchdog timer 647 in the DaVinci DM644x/DM646x or Keystone processors. 648 To compile this driver as a module, choose M here: the 649 module will be called davinci_wdt. 650 651 NOTE: once enabled, this timer cannot be disabled. 652 Say N if you are unsure. 653 654config K3_RTI_WATCHDOG 655 tristate "Texas Instruments K3 RTI watchdog" 656 depends on ARCH_K3 || COMPILE_TEST 657 select WATCHDOG_CORE 658 help 659 Say Y here if you want to include support for the K3 watchdog 660 timer (RTI module) available in the K3 generation of processors. 661 662config ORION_WATCHDOG 663 tristate "Orion watchdog" 664 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 665 depends on ARM 666 select WATCHDOG_CORE 667 help 668 Say Y here if to include support for the watchdog timer 669 in the Marvell Orion5x and Kirkwood ARM SoCs. 670 To compile this driver as a module, choose M here: the 671 module will be called orion_wdt. 672 673config RN5T618_WATCHDOG 674 tristate "Ricoh RN5T618 watchdog" 675 depends on MFD_RN5T618 || COMPILE_TEST 676 select WATCHDOG_CORE 677 help 678 If you say yes here you get support for watchdog on the Ricoh 679 RN5T618 PMIC. 680 681 This driver can also be built as a module. If so, the module 682 will be called rn5t618_wdt. 683 684config SUNXI_WATCHDOG 685 tristate "Allwinner SoCs watchdog support" 686 depends on ARCH_SUNXI || COMPILE_TEST 687 select WATCHDOG_CORE 688 help 689 Say Y here to include support for the watchdog timer 690 in Allwinner SoCs. 691 To compile this driver as a module, choose M here: the 692 module will be called sunxi_wdt. 693 694config NPCM7XX_WATCHDOG 695 tristate "Nuvoton NPCM750 watchdog" 696 depends on ARCH_NPCM || COMPILE_TEST 697 default y if ARCH_NPCM7XX 698 select WATCHDOG_CORE 699 help 700 Say Y here to include Watchdog timer support for the 701 watchdog embedded into the NPCM7xx. 702 This watchdog is used to reset the system and thus cannot be 703 compiled as a module. 704 705config TWL4030_WATCHDOG 706 tristate "TWL4030 Watchdog" 707 depends on TWL4030_CORE 708 select WATCHDOG_CORE 709 help 710 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 711 watchdog timer support for TWL4030 chips. 712 713config STMP3XXX_RTC_WATCHDOG 714 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 715 depends on RTC_DRV_STMP || COMPILE_TEST 716 select WATCHDOG_CORE 717 help 718 Say Y here to include support for the watchdog timer inside 719 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 720 To compile this driver as a module, choose M here: the 721 module will be called stmp3xxx_rtc_wdt. 722 723config TS4800_WATCHDOG 724 tristate "TS-4800 Watchdog" 725 depends on HAS_IOMEM && OF 726 depends on SOC_IMX51 || COMPILE_TEST 727 select WATCHDOG_CORE 728 select MFD_SYSCON 729 help 730 Technologic Systems TS-4800 has watchdog timer implemented in 731 an external FPGA. Say Y here if you want to support for the 732 watchdog timer on TS-4800 board. 733 734config TS72XX_WATCHDOG 735 tristate "TS-72XX SBC Watchdog" 736 depends on MACH_TS72XX || COMPILE_TEST 737 select WATCHDOG_CORE 738 help 739 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 740 watchdog timer implemented in a external CPLD chip. Say Y here 741 if you want to support for the watchdog timer on TS-72XX boards. 742 743 To compile this driver as a module, choose M here: the 744 module will be called ts72xx_wdt. 745 746config MAX63XX_WATCHDOG 747 tristate "Max63xx watchdog" 748 depends on HAS_IOMEM 749 select WATCHDOG_CORE 750 help 751 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 752 753config MAX77620_WATCHDOG 754 tristate "Maxim Max77620 Watchdog Timer" 755 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 756 select WATCHDOG_CORE 757 help 758 This is the driver for the Max77620 watchdog timer. 759 Say 'Y' here to enable the watchdog timer support for 760 MAX77620 chips. To compile this driver as a module, 761 choose M here: the module will be called max77620_wdt. 762 763config NCT6694_WATCHDOG 764 tristate "Nuvoton NCT6694 watchdog support" 765 depends on MFD_NCT6694 766 select WATCHDOG_CORE 767 help 768 Say Y here to support Nuvoton NCT6694 watchdog timer 769 functionality. 770 771 This driver can also be built as a module. If so, the module 772 will be called nct6694_wdt. 773 774config IMX2_WDT 775 tristate "IMX2+ Watchdog" 776 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 777 select REGMAP_MMIO 778 select WATCHDOG_CORE 779 help 780 This is the driver for the hardware watchdog 781 on the Freescale IMX2 and later processors. 782 If you have one of these processors and wish to have 783 watchdog support enabled, say Y, otherwise say N. 784 785 To compile this driver as a module, choose M here: the 786 module will be called imx2_wdt. 787 788config IMX_SC_WDT 789 tristate "IMX SC Watchdog" 790 depends on HAVE_ARM_SMCCC 791 depends on IMX_SCU || COMPILE_TEST 792 select WATCHDOG_CORE 793 help 794 This is the driver for the system controller watchdog 795 on the NXP i.MX SoCs with system controller inside, the 796 watchdog driver will call ARM SMC API and trap into 797 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 798 will request system controller to execute the operations. 799 If you have one of these processors and wish to have 800 watchdog support enabled, say Y, otherwise say N. 801 802 To compile this driver as a module, choose M here: the 803 module will be called imx_sc_wdt. 804 805config IMX7ULP_WDT 806 tristate "IMX7ULP Watchdog" 807 depends on ARCH_MXC || COMPILE_TEST 808 select WATCHDOG_CORE 809 help 810 This is the driver for the hardware watchdog on the Freescale 811 IMX7ULP and later processors. If you have one of these 812 processors and wish to have watchdog support enabled, 813 say Y, otherwise say N. 814 815 To compile this driver as a module, choose M here: the 816 module will be called imx7ulp_wdt. 817 818config S32G_WDT 819 tristate "S32G Watchdog" 820 depends on ARCH_S32 || COMPILE_TEST 821 select WATCHDOG_CORE 822 help 823 This is the driver for the hardware watchdog on the NXP 824 S32G platforms. If you wish to have watchdog support 825 enabled, say Y, otherwise say N. 826 827config DB500_WATCHDOG 828 tristate "ST-Ericsson DB800 watchdog" 829 depends on MFD_DB8500_PRCMU 830 select WATCHDOG_CORE 831 default y 832 help 833 Say Y here to include Watchdog timer support for the watchdog 834 existing in the prcmu of ST-Ericsson DB8500 platform. 835 836 To compile this driver as a module, choose M here: the 837 module will be called db500_wdt. 838 839config RETU_WATCHDOG 840 tristate "Retu watchdog" 841 depends on MFD_RETU 842 select WATCHDOG_CORE 843 help 844 Retu watchdog driver for Nokia Internet Tablets (770, N800, 845 N810). At least on N800 the watchdog cannot be disabled, so 846 this driver is essential and you should enable it. 847 848 To compile this driver as a module, choose M here: the 849 module will be called retu_wdt. 850 851config MOXART_WDT 852 tristate "MOXART watchdog" 853 depends on ARCH_MOXART || COMPILE_TEST 854 help 855 Say Y here to include Watchdog timer support for the watchdog 856 existing on the MOXA ART SoC series platforms. 857 858 To compile this driver as a module, choose M here: the 859 module will be called moxart_wdt. 860 861config ST_LPC_WATCHDOG 862 tristate "STMicroelectronics LPC Watchdog" 863 depends on ARCH_STI || COMPILE_TEST 864 depends on OF 865 select WATCHDOG_CORE 866 help 867 Say Y here to include STMicroelectronics Low Power Controller 868 (LPC) based Watchdog timer support. 869 870 To compile this driver as a module, choose M here: the 871 module will be called st_lpc_wdt. 872 873config TEGRA_WATCHDOG 874 tristate "Tegra watchdog" 875 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 876 select WATCHDOG_CORE 877 help 878 Say Y here to include support for the watchdog timer 879 embedded in NVIDIA Tegra SoCs. 880 881 To compile this driver as a module, choose M here: the 882 module will be called tegra_wdt. 883 884config QCOM_WDT 885 tristate "QCOM watchdog" 886 depends on HAS_IOMEM 887 depends on ARCH_QCOM || COMPILE_TEST 888 select WATCHDOG_CORE 889 help 890 Say Y here to include Watchdog timer support for the watchdog found 891 on QCOM chipsets. Currently supported targets are the MSM8960, 892 APQ8064, and IPQ8064. 893 894 To compile this driver as a module, choose M here: the 895 module will be called qcom_wdt. 896 897config MESON_GXBB_WATCHDOG 898 tristate "Amlogic Meson GXBB SoCs watchdog support" 899 depends on ARCH_MESON || COMPILE_TEST 900 select WATCHDOG_CORE 901 help 902 Say Y here to include support for the watchdog timer 903 in Amlogic Meson GXBB SoCs. 904 To compile this driver as a module, choose M here: the 905 module will be called meson_gxbb_wdt. 906 907config MESON_WATCHDOG 908 tristate "Amlogic Meson SoCs watchdog support" 909 depends on ARCH_MESON || COMPILE_TEST 910 select WATCHDOG_CORE 911 help 912 Say Y here to include support for the watchdog timer 913 in Amlogic Meson SoCs. 914 To compile this driver as a module, choose M here: the 915 module will be called meson_wdt. 916 917config MEDIATEK_WATCHDOG 918 tristate "Mediatek SoCs watchdog support" 919 depends on ARCH_MEDIATEK || COMPILE_TEST 920 default ARCH_MEDIATEK 921 select WATCHDOG_CORE 922 select RESET_CONTROLLER 923 help 924 Say Y here to include support for the watchdog timer 925 in Mediatek SoCs. 926 To compile this driver as a module, choose M here: the 927 module will be called mtk_wdt. 928 929config DIGICOLOR_WATCHDOG 930 tristate "Conexant Digicolor SoCs watchdog support" 931 depends on ARCH_DIGICOLOR || COMPILE_TEST 932 select WATCHDOG_CORE 933 help 934 Say Y here to include support for the watchdog timer 935 in Conexant Digicolor SoCs. 936 To compile this driver as a module, choose M here: the 937 module will be called digicolor_wdt. 938 939config ARM_SMC_WATCHDOG 940 tristate "ARM Secure Monitor Call based watchdog support" 941 depends on ARM || ARM64 942 depends on OF 943 depends on HAVE_ARM_SMCCC 944 select WATCHDOG_CORE 945 help 946 Say Y here to include support for a watchdog timer 947 implemented by the EL3 Secure Monitor on ARM platforms. 948 Requires firmware support. 949 To compile this driver as a module, choose M here: the 950 module will be called arm_smc_wdt. 951 952config LPC18XX_WATCHDOG 953 tristate "LPC18xx/43xx Watchdog" 954 depends on ARCH_LPC18XX || COMPILE_TEST 955 depends on HAS_IOMEM 956 select WATCHDOG_CORE 957 help 958 Say Y here if to include support for the watchdog timer 959 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 960 processors. 961 To compile this driver as a module, choose M here: the 962 module will be called lpc18xx_wdt. 963 964config RENESAS_WDT 965 tristate "Renesas WDT Watchdog" 966 depends on ARCH_RENESAS || COMPILE_TEST 967 select WATCHDOG_CORE 968 help 969 This driver adds watchdog support for the integrated watchdogs in the 970 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 971 972config RENESAS_RZAWDT 973 tristate "Renesas RZ/A WDT Watchdog" 974 depends on ARCH_RENESAS || COMPILE_TEST 975 select WATCHDOG_CORE 976 help 977 This driver adds watchdog support for the integrated watchdogs in the 978 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 979 980config RENESAS_RZN1WDT 981 tristate "Renesas RZ/N1 watchdog" 982 depends on ARCH_RENESAS || COMPILE_TEST 983 select WATCHDOG_CORE 984 help 985 This driver adds watchdog support for the integrated watchdogs in the 986 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 987 988config RENESAS_RZG2LWDT 989 tristate "Renesas RZ/G2L WDT Watchdog" 990 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 991 depends on PM || COMPILE_TEST 992 select WATCHDOG_CORE 993 help 994 This driver adds watchdog support for the integrated watchdogs in the 995 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 996 997config RENESAS_RZV2HWDT 998 tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog" 999 depends on ARCH_RENESAS || COMPILE_TEST 1000 depends on PM || COMPILE_TEST 1001 select WATCHDOG_CORE 1002 help 1003 This driver adds watchdog support for the integrated watchdogs in the 1004 Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a 1005 system. 1006 1007config ASPEED_WATCHDOG 1008 tristate "Aspeed BMC watchdog support" 1009 depends on ARCH_ASPEED || COMPILE_TEST 1010 select WATCHDOG_CORE 1011 help 1012 Say Y here to include support for the watchdog timer 1013 in Aspeed BMC SoCs. 1014 1015 This driver is required to reboot the SoC. 1016 1017 To compile this driver as a module, choose M here: the 1018 module will be called aspeed_wdt. 1019 1020config STM32_WATCHDOG 1021 tristate "STM32 Independent WatchDoG (IWDG) support" 1022 depends on ARCH_STM32 || COMPILE_TEST 1023 select WATCHDOG_CORE 1024 default ARCH_STM32 1025 help 1026 Say Y here to include support for the watchdog timer 1027 in stm32 SoCs. 1028 1029 To compile this driver as a module, choose M here: the 1030 module will be called stm32_iwdg. 1031 1032config STPMIC1_WATCHDOG 1033 tristate "STPMIC1 PMIC watchdog support" 1034 depends on MFD_STPMIC1 1035 select WATCHDOG_CORE 1036 help 1037 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1038 If the watchdog timer expires, stpmic1 will shut down all its power 1039 supplies. 1040 1041 To compile this driver as a module, choose M here: the 1042 module will be called spmic1_wdt. 1043 1044config UNIPHIER_WATCHDOG 1045 tristate "UniPhier watchdog support" 1046 depends on ARCH_UNIPHIER || COMPILE_TEST 1047 depends on OF && MFD_SYSCON 1048 select WATCHDOG_CORE 1049 help 1050 Say Y here to include support watchdog timer embedded 1051 into the UniPhier system. 1052 1053 To compile this driver as a module, choose M here: the 1054 module will be called uniphier_wdt. 1055 1056config RTD119X_WATCHDOG 1057 bool "Realtek RTD119x/RTD129x watchdog support" 1058 depends on ARCH_REALTEK || COMPILE_TEST 1059 depends on OF 1060 select WATCHDOG_CORE 1061 default ARCH_REALTEK 1062 help 1063 Say Y here to include support for the watchdog timer in 1064 Realtek RTD1295 SoCs. 1065 1066config REALTEK_OTTO_WDT 1067 tristate "Realtek Otto MIPS watchdog support" 1068 depends on MACH_REALTEK_RTL || COMPILE_TEST 1069 depends on COMMON_CLK 1070 select WATCHDOG_CORE 1071 default MACH_REALTEK_RTL 1072 help 1073 Say Y here to include support for the watchdog timer on Realtek 1074 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1075 notifications and system reset on timeout. 1076 1077 When built as a module this will be called realtek_otto_wdt. 1078 1079config SPRD_WATCHDOG 1080 tristate "Spreadtrum watchdog support" 1081 depends on ARCH_SPRD || COMPILE_TEST 1082 select WATCHDOG_CORE 1083 help 1084 Say Y here to include watchdog timer supported 1085 by Spreadtrum system. 1086 1087config PM8916_WATCHDOG 1088 tristate "QCOM PM8916 pmic watchdog" 1089 depends on OF && MFD_SPMI_PMIC 1090 select WATCHDOG_CORE 1091 help 1092 Say Y here to include support watchdog timer embedded into the 1093 pm8916 module. 1094 1095config VISCONTI_WATCHDOG 1096 tristate "Toshiba Visconti series watchdog support" 1097 depends on ARCH_VISCONTI || COMPILE_TEST 1098 select WATCHDOG_CORE 1099 help 1100 Say Y here to include support for the watchdog timer in Toshiba 1101 Visconti SoCs. 1102 1103config MSC313E_WATCHDOG 1104 tristate "MStar MSC313e watchdog" 1105 depends on ARCH_MSTARV7 || COMPILE_TEST 1106 select WATCHDOG_CORE 1107 help 1108 Say Y here to include support for the Watchdog timer embedded 1109 into MStar MSC313e chips. This will reboot your system when the 1110 timeout is reached. 1111 1112 To compile this driver as a module, choose M here: the 1113 module will be called msc313e_wdt. 1114 1115config APPLE_WATCHDOG 1116 tristate "Apple SoC watchdog" 1117 depends on ARCH_APPLE || COMPILE_TEST 1118 select WATCHDOG_CORE 1119 help 1120 Say Y here to include support for the Watchdog found in Apple 1121 SoCs such as the M1. Next to the common watchdog features this 1122 driver is also required in order to reboot these SoCs. 1123 1124 To compile this driver as a module, choose M here: the 1125 module will be called apple_wdt. 1126 1127config SUNPLUS_WATCHDOG 1128 tristate "Sunplus watchdog support" 1129 depends on ARCH_SUNPLUS || COMPILE_TEST 1130 select WATCHDOG_CORE 1131 help 1132 Say Y here to include support for the watchdog timer 1133 in Sunplus SoCs. 1134 1135 To compile this driver as a module, choose M here: the 1136 module will be called sunplus_wdt. 1137 1138# X86 (i386 + ia64 + x86_64) Architecture 1139 1140config ACQUIRE_WDT 1141 tristate "Acquire SBC Watchdog Timer" 1142 depends on X86 1143 help 1144 This is the driver for the hardware watchdog on Single Board 1145 Computers produced by Acquire Inc (and others). This watchdog 1146 simply watches your kernel to make sure it doesn't freeze, and if 1147 it does, it reboots your computer after a certain amount of time. 1148 1149 To compile this driver as a module, choose M here: the 1150 module will be called acquirewdt. 1151 1152 Most people will say N. 1153 1154config ADVANTECH_WDT 1155 tristate "Advantech SBC Watchdog Timer" 1156 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1157 help 1158 If you are configuring a Linux kernel for the Advantech single-board 1159 computer, say `Y' here to support its built-in watchdog timer 1160 feature. More information can be found at 1161 <https://www.advantech.com.tw/products/> 1162 1163config ADVANTECH_EC_WDT 1164 tristate "Advantech Embedded Controller Watchdog Timer" 1165 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1166 select ISA_BUS_API 1167 select WATCHDOG_CORE 1168 help 1169 This driver supports Advantech products with ITE based Embedded Controller. 1170 It does not support Advantech products with other ECs or without EC. 1171 1172config ALIM1535_WDT 1173 tristate "ALi M1535 PMU Watchdog Timer" 1174 depends on (X86 || COMPILE_TEST) && PCI 1175 help 1176 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1177 1178 To compile this driver as a module, choose M here: the 1179 module will be called alim1535_wdt. 1180 1181 Most people will say N. 1182 1183config ALIM7101_WDT 1184 tristate "ALi M7101 PMU Computer Watchdog" 1185 depends on PCI 1186 help 1187 This is the driver for the hardware watchdog on the ALi M7101 PMU 1188 as used in the x86 Cobalt servers and also found in some 1189 SPARC Netra servers too. 1190 1191 To compile this driver as a module, choose M here: the 1192 module will be called alim7101_wdt. 1193 1194 Most people will say N. 1195 1196config CGBC_WDT 1197 tristate "Congatec Board Controller Watchdog Timer" 1198 depends on MFD_CGBC 1199 select WATCHDOG_CORE 1200 help 1201 Enables watchdog timer support for the Congatec Board Controller. 1202 1203 This driver can also be built as a module. If so, the module will be 1204 called cgbc_wdt. 1205 1206config EBC_C384_WDT 1207 tristate "WinSystems EBC-C384 Watchdog Timer" 1208 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1209 select ISA_BUS_API 1210 select WATCHDOG_CORE 1211 help 1212 Enables watchdog timer support for the watchdog timer on the 1213 WinSystems EBC-C384 motherboard. The timeout may be configured via 1214 the timeout module parameter. 1215 1216config EXAR_WDT 1217 tristate "Exar Watchdog Timer" 1218 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1219 select WATCHDOG_CORE 1220 help 1221 Enables watchdog timer support for the watchdog timer present 1222 in some Exar/MaxLinear UART chips like the XR28V38x. 1223 1224 To compile this driver as a module, choose M here: the 1225 module will be called exar_wdt. 1226 1227config F71808E_WDT 1228 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1229 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1230 select WATCHDOG_CORE 1231 help 1232 This is the driver for the hardware watchdog on the Fintek F71808E, 1233 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1234 F81866 Super I/O controllers. 1235 1236 You can compile this driver directly into the kernel, or use 1237 it as a module. The module will be called f71808e_wdt. 1238 1239config SP5100_TCO 1240 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1241 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1242 select WATCHDOG_CORE 1243 help 1244 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1245 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1246 the machine after its expiration. The expiration time can be 1247 configured with the "heartbeat" parameter. 1248 1249 To compile this driver as a module, choose M here: the 1250 module will be called sp5100_tco. 1251 1252config GEODE_WDT 1253 tristate "AMD Geode CS5535/CS5536 Watchdog" 1254 depends on CS5535_MFGPT 1255 help 1256 This driver enables a watchdog capability built into the 1257 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1258 processors. This watchdog watches your kernel to make sure 1259 it doesn't freeze, and if it does, it reboots your computer after 1260 a certain amount of time. 1261 1262 You can compile this driver directly into the kernel, or use 1263 it as a module. The module will be called geodewdt. 1264 1265config SC520_WDT 1266 tristate "AMD Elan SC520 processor Watchdog" 1267 depends on MELAN || COMPILE_TEST 1268 help 1269 This is the driver for the hardware watchdog built in to the 1270 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1271 This watchdog simply watches your kernel to make sure it doesn't 1272 freeze, and if it does, it reboots your computer after a certain 1273 amount of time. 1274 1275 You can compile this driver directly into the kernel, or use 1276 it as a module. The module will be called sc520_wdt. 1277 1278config SBC_FITPC2_WATCHDOG 1279 tristate "Compulab SBC-FITPC2 watchdog" 1280 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1281 help 1282 This is the driver for the built-in watchdog timer on the fit-PC2, 1283 fit-PC2i, CM-iAM single-board computers made by Compulab. 1284 1285 It's possible to enable the watchdog timer either from BIOS (F2) or 1286 from booted Linux. 1287 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1288 operational range. 1289 1290 Entering BIOS setup temporarily disables watchdog operation regardless 1291 of current state, so system will not be restarted while user is in 1292 BIOS setup. 1293 1294 Once the watchdog is enabled the system will be restarted every 1295 "Watchdog Timer Value" period, so to prevent it user can restart or 1296 disable the watchdog. 1297 1298 To compile this driver as a module, choose M here: the 1299 module will be called sbc_fitpc2_wdt. 1300 1301 Most people will say N. 1302 1303config EUROTECH_WDT 1304 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1305 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1306 help 1307 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1308 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1309 information are at <http://www.eurotech.it/>. 1310 1311config IB700_WDT 1312 tristate "IB700 SBC Watchdog Timer" 1313 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1314 help 1315 This is the driver for the hardware watchdog on the IB700 Single 1316 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1317 watchdog simply watches your kernel to make sure it doesn't freeze, 1318 and if it does, it reboots your computer after a certain amount of time. 1319 1320 This driver is like the WDT501 driver but for slightly different 1321 hardware. 1322 1323 To compile this driver as a module, choose M here: the 1324 module will be called ib700wdt. 1325 1326 Most people will say N. 1327 1328config IBMASR 1329 tristate "IBM Automatic Server Restart" 1330 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1331 help 1332 This is the driver for the IBM Automatic Server Restart watchdog 1333 timer built-in into some eServer xSeries machines. 1334 1335 To compile this driver as a module, choose M here: the 1336 module will be called ibmasr. 1337 1338config WAFER_WDT 1339 tristate "ICP Single Board Computer Watchdog Timer" 1340 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1341 help 1342 This is a driver for the hardware watchdog on the ICP Single 1343 Board Computer. This driver is working on (at least) the following 1344 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1345 1346 To compile this driver as a module, choose M here: the 1347 module will be called wafer5823wdt. 1348 1349config I6300ESB_WDT 1350 tristate "Intel 6300ESB Timer/Watchdog" 1351 depends on PCI 1352 select WATCHDOG_CORE 1353 help 1354 Hardware driver for the watchdog timer built into the Intel 1355 6300ESB controller hub. 1356 1357 To compile this driver as a module, choose M here: the 1358 module will be called i6300esb. 1359 1360config IE6XX_WDT 1361 tristate "Intel Atom E6xx Watchdog" 1362 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1363 select WATCHDOG_CORE 1364 select MFD_CORE 1365 select LPC_SCH 1366 help 1367 Hardware driver for the watchdog timer built into the Intel 1368 Atom E6XX (TunnelCreek) processor. 1369 1370 To compile this driver as a module, choose M here: the 1371 module will be called ie6xx_wdt. 1372 1373config INTEL_MID_WATCHDOG 1374 tristate "Intel MID Watchdog Timer" 1375 depends on X86_INTEL_MID 1376 select WATCHDOG_CORE 1377 help 1378 Watchdog timer driver built into the Intel SCU for Intel MID 1379 Platforms. 1380 1381 This driver currently supports only the watchdog evolution 1382 implementation in SCU, available for Merrifield generation. 1383 1384 To compile this driver as a module, choose M here. 1385 1386config INTEL_OC_WATCHDOG 1387 tristate "Intel OC Watchdog" 1388 depends on (X86 || COMPILE_TEST) && ACPI && HAS_IOPORT 1389 select WATCHDOG_CORE 1390 help 1391 Hardware driver for Intel Over-Clocking watchdog present in 1392 Platform Controller Hub (PCH) chipsets. 1393 1394 To compile this driver as a module, choose M here: the 1395 module will be called intel_oc_wdt. 1396 1397config ITCO_WDT 1398 tristate "Intel TCO Timer/Watchdog" 1399 depends on X86 && PCI 1400 select WATCHDOG_CORE 1401 depends on I2C || I2C=n 1402 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1403 depends on HAS_IOPORT # for I2C_I801 1404 select LPC_ICH if !EXPERT 1405 select I2C_I801 if !EXPERT && I2C 1406 help 1407 Hardware driver for the intel TCO timer based watchdog devices. 1408 These drivers are included in the Intel 82801 I/O Controller 1409 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1410 controller hub. 1411 1412 The TCO (Total Cost of Ownership) timer is a watchdog timer 1413 that will reboot the machine after its second expiration. The 1414 expiration time can be configured with the "heartbeat" parameter. 1415 1416 On some motherboards the driver may fail to reset the chipset's 1417 NO_REBOOT flag which prevents the watchdog from rebooting the 1418 machine. If this is the case you will get a kernel message like 1419 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1420 1421 To compile this driver as a module, choose M here: the 1422 module will be called iTCO_wdt. 1423 1424config ITCO_VENDOR_SUPPORT 1425 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1426 depends on ITCO_WDT 1427 help 1428 Add vendor specific support to the intel TCO timer based watchdog 1429 devices. At this moment we only have additional support for some 1430 SuperMicro Inc. motherboards. 1431 1432config IT8712F_WDT 1433 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1434 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1435 help 1436 This is the driver for the built-in watchdog timer on the IT8712F 1437 Super I/0 chipset used on many motherboards. 1438 1439 If the driver does not work, then make sure that the game port in 1440 the BIOS is enabled. 1441 1442 To compile this driver as a module, choose M here: the 1443 module will be called it8712f_wdt. 1444 1445config IT87_WDT 1446 tristate "IT87 Watchdog Timer" 1447 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1448 select WATCHDOG_CORE 1449 help 1450 This is the driver for the hardware watchdog on the ITE IT8607, 1451 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1452 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1453 IT8783 Super I/O chips. 1454 1455 This watchdog simply watches your kernel to make sure it doesn't 1456 freeze, and if it does, it reboots your computer after a certain 1457 amount of time. 1458 1459 To compile this driver as a module, choose M here: the module will 1460 be called it87_wdt. 1461 1462config HP_WATCHDOG 1463 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1464 select WATCHDOG_CORE 1465 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1466 help 1467 A software monitoring watchdog and NMI handling driver. This driver 1468 will detect lockups and provide a stack trace. This is a driver that 1469 will only load on an HP ProLiant system with a minimum of iLO2 support. 1470 To compile this driver as a module, choose M here: the module will be 1471 called hpwdt. 1472 1473config HPWDT_NMI_DECODING 1474 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1475 depends on X86 && HP_WATCHDOG 1476 default y 1477 help 1478 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1479 "Generate NMI to System" virtual button. When an NMI is claimed 1480 by the driver, panic is called. 1481 1482config KEMPLD_WDT 1483 tristate "Kontron COM Watchdog Timer" 1484 depends on MFD_KEMPLD 1485 select WATCHDOG_CORE 1486 help 1487 Support for the PLD watchdog on some Kontron ETX and COMexpress 1488 (ETXexpress) modules 1489 1490 This driver can also be built as a module. If so, the module will be 1491 called kempld_wdt. 1492 1493config SC1200_WDT 1494 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1495 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1496 help 1497 This is a driver for National Semiconductor PC87307/PC97307 hardware 1498 watchdog cards as found on the SC1200. This watchdog is mainly used 1499 for power management purposes and can be used to power down the device 1500 during inactivity periods (includes interrupt activity monitoring). 1501 1502 To compile this driver as a module, choose M here: the 1503 module will be called sc1200wdt. 1504 1505 Most people will say N. 1506 1507config SCx200_WDT 1508 tristate "National Semiconductor SCx200 Watchdog" 1509 depends on SCx200 && PCI 1510 help 1511 Enable the built-in watchdog timer support on the National 1512 Semiconductor SCx200 processors. 1513 1514 If compiled as a module, it will be called scx200_wdt. 1515 1516config PC87413_WDT 1517 tristate "NS PC87413 watchdog" 1518 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1519 help 1520 This is the driver for the hardware watchdog on the PC87413 chipset 1521 This watchdog simply watches your kernel to make sure it doesn't 1522 freeze, and if it does, it reboots your computer after a certain 1523 amount of time. 1524 1525 To compile this driver as a module, choose M here: the 1526 module will be called pc87413_wdt. 1527 1528 Most people will say N. 1529 1530config NV_TCO 1531 tristate "nVidia TCO Timer/Watchdog" 1532 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1533 help 1534 Hardware driver for the TCO timer built into the nVidia Hub family 1535 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1536 watchdog timer that will reboot the machine after its second 1537 expiration. The expiration time can be configured with the 1538 "heartbeat" parameter. 1539 1540 On some motherboards the driver may fail to reset the chipset's 1541 NO_REBOOT flag which prevents the watchdog from rebooting the 1542 machine. If this is the case you will get a kernel message like 1543 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1544 1545 To compile this driver as a module, choose M here: the 1546 module will be called nv_tco. 1547 1548config RDC321X_WDT 1549 tristate "RDC R-321x SoC watchdog" 1550 depends on X86_RDC321X || COMPILE_TEST 1551 depends on PCI 1552 help 1553 This is the driver for the built in hardware watchdog 1554 in the RDC R-321x SoC. 1555 1556 To compile this driver as a module, choose M here: the 1557 module will be called rdc321x_wdt. 1558 1559config 60XX_WDT 1560 tristate "SBC-60XX Watchdog Timer" 1561 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1562 help 1563 This driver can be used with the watchdog timer found on some 1564 single board computers, namely the 6010 PII based computer. 1565 It may well work with other cards. It reads port 0x443 to enable 1566 and re-set the watchdog timer, and reads port 0x45 to disable 1567 the watchdog. If you have a card that behave in similar ways, 1568 you can probably make this driver work with your card as well. 1569 1570 You can compile this driver directly into the kernel, or use 1571 it as a module. The module will be called sbc60xxwdt. 1572 1573config SBC8360_WDT 1574 tristate "SBC8360 Watchdog Timer" 1575 depends on X86_32 && HAS_IOPORT 1576 help 1577 1578 This is the driver for the hardware watchdog on the SBC8360 Single 1579 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1580 1581 To compile this driver as a module, choose M here: the 1582 module will be called sbc8360. 1583 1584 Most people will say N. 1585 1586config SBC7240_WDT 1587 tristate "SBC Nano 7240 Watchdog Timer" 1588 depends on X86_32 && HAS_IOPORT 1589 help 1590 This is the driver for the hardware watchdog found on the IEI 1591 single board computers EPIC Nano 7240 (and likely others). This 1592 watchdog simply watches your kernel to make sure it doesn't freeze, 1593 and if it does, it reboots your computer after a certain amount of 1594 time. 1595 1596 To compile this driver as a module, choose M here: the 1597 module will be called sbc7240_wdt. 1598 1599config SMSC_SCH311X_WDT 1600 tristate "SMSC SCH311X Watchdog Timer" 1601 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1602 help 1603 This is the driver for the hardware watchdog timer on the 1604 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1605 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1606 serial ports). 1607 1608 To compile this driver as a module, choose M here: the 1609 module will be called sch311x_wdt. 1610 1611config SMSC37B787_WDT 1612 tristate "Winbond SMsC37B787 Watchdog Timer" 1613 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1614 help 1615 This is the driver for the hardware watchdog component on the 1616 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1617 from Vision Systems and maybe others. 1618 1619 This watchdog simply watches your kernel to make sure it doesn't 1620 freeze, and if it does, it reboots your computer after a certain 1621 amount of time. 1622 1623 Usually a userspace daemon will notify the kernel WDT driver that 1624 userspace is still alive, at regular intervals. 1625 1626 To compile this driver as a module, choose M here: the 1627 module will be called smsc37b787_wdt. 1628 1629 Most people will say N. 1630 1631config TQMX86_WDT 1632 tristate "TQ-Systems TQMX86 Watchdog Timer" 1633 depends on X86 || COMPILE_TEST 1634 select WATCHDOG_CORE 1635 help 1636 This is the driver for the hardware watchdog timer in the TQMX86 IO 1637 controller found on some of their ComExpress Modules. 1638 1639 To compile this driver as a module, choose M here; the module 1640 will be called tqmx86_wdt. 1641 1642 Most people will say N. 1643 1644config VIA_WDT 1645 tristate "VIA Watchdog Timer" 1646 depends on (X86 || COMPILE_TEST) && PCI 1647 select WATCHDOG_CORE 1648 help 1649 This is the driver for the hardware watchdog timer on VIA 1650 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1651 1652 To compile this driver as a module, choose M here; the module 1653 will be called via_wdt. 1654 1655 Most people will say N. 1656 1657config W83627HF_WDT 1658 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1659 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1660 select WATCHDOG_CORE 1661 help 1662 This is the driver for the hardware watchdog on the following 1663 Super I/O chips. 1664 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1665 W83637HF 1666 W83667HG/HG-B 1667 W83687THF 1668 W83697HF 1669 W83697UG 1670 NCT6775 1671 NCT6776 1672 NCT6779 1673 NCT6791 1674 NCT6792 1675 NCT6102D/04D/06D 1676 NCT6116D 1677 1678 This watchdog simply watches your kernel to make sure it doesn't 1679 freeze, and if it does, it reboots your computer after a certain 1680 amount of time. 1681 1682 To compile this driver as a module, choose M here: the 1683 module will be called w83627hf_wdt. 1684 1685 Most people will say N. 1686 1687config W83877F_WDT 1688 tristate "W83877F (EMACS) Watchdog Timer" 1689 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1690 help 1691 This is the driver for the hardware watchdog on the W83877F chipset 1692 as used in EMACS PC-104 motherboards (and likely others). This 1693 watchdog simply watches your kernel to make sure it doesn't freeze, 1694 and if it does, it reboots your computer after a certain amount of 1695 time. 1696 1697 To compile this driver as a module, choose M here: the 1698 module will be called w83877f_wdt. 1699 1700 Most people will say N. 1701 1702config W83977F_WDT 1703 tristate "W83977F (PCM-5335) Watchdog Timer" 1704 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1705 help 1706 This is the driver for the hardware watchdog on the W83977F I/O chip 1707 as used in AAEON's PCM-5335 SBC (and likely others). This 1708 watchdog simply watches your kernel to make sure it doesn't freeze, 1709 and if it does, it reboots your computer after a certain amount of 1710 time. 1711 1712 To compile this driver as a module, choose M here: the 1713 module will be called w83977f_wdt. 1714 1715config MACHZ_WDT 1716 tristate "ZF MachZ Watchdog" 1717 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1718 help 1719 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1720 N. This is the driver for the watchdog timer built-in on that 1721 processor using ZF-Logic interface. This watchdog simply watches 1722 your kernel to make sure it doesn't freeze, and if it does, it 1723 reboots your computer after a certain amount of time. 1724 1725 To compile this driver as a module, choose M here: the 1726 module will be called machzwd. 1727 1728config SBC_EPX_C3_WATCHDOG 1729 tristate "Winsystems SBC EPX-C3 watchdog" 1730 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1731 help 1732 This is the driver for the built-in watchdog timer on the EPX-C3 1733 Single-board computer made by Winsystems, Inc. 1734 1735 *Note*: This hardware watchdog is not probeable and thus there 1736 is no way to know if writing to its IO address will corrupt 1737 your system or have any real effect. The only way to be sure 1738 that this driver does what you want is to make sure you 1739 are running it on an EPX-C3 from Winsystems with the watchdog 1740 timer at IO address 0x1ee and 0x1ef. It will write to both those 1741 IO ports. Basically, the assumption is made that if you compile 1742 this driver into your kernel and/or load it as a module, that you 1743 know what you are doing and that you are in fact running on an 1744 EPX-C3 board! 1745 1746 To compile this driver as a module, choose M here: the 1747 module will be called sbc_epx_c3. 1748 1749config INTEL_MEI_WDT 1750 tristate "Intel MEI iAMT Watchdog" 1751 depends on INTEL_MEI && X86 1752 select WATCHDOG_CORE 1753 help 1754 A device driver for the Intel MEI iAMT watchdog. 1755 1756 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1757 Whenever the OS hangs or crashes, iAMT will send an event 1758 to any subscriber to this event. The watchdog doesn't reset the 1759 the platform. 1760 1761 To compile this driver as a module, choose M here: 1762 the module will be called mei_wdt. 1763 1764config NI903X_WDT 1765 tristate "NI 903x/913x Watchdog" 1766 depends on X86 && ACPI 1767 select WATCHDOG_CORE 1768 help 1769 This is the driver for the watchdog timer on the National Instruments 1770 903x/913x real-time controllers. 1771 1772 To compile this driver as a module, choose M here: the module will be 1773 called ni903x_wdt. 1774 1775config NIC7018_WDT 1776 tristate "NIC7018 Watchdog" 1777 depends on HAS_IOPORT 1778 depends on ACPI || COMPILE_TEST 1779 select WATCHDOG_CORE 1780 help 1781 Support for National Instruments NIC7018 Watchdog. 1782 1783 To compile this driver as a module, choose M here: the module will be 1784 called nic7018_wdt. 1785 1786config SIEMENS_SIMATIC_IPC_WDT 1787 tristate "Siemens Simatic IPC Watchdog" 1788 depends on SIEMENS_SIMATIC_IPC && PCI 1789 default y 1790 select WATCHDOG_CORE 1791 select P2SB if X86 1792 help 1793 This driver adds support for several watchdogs found in Industrial 1794 PCs from Siemens. 1795 1796 To compile this driver as a module, choose M here: the module will be 1797 called simatic-ipc-wdt. 1798 1799# M68K Architecture 1800 1801config M54xx_WATCHDOG 1802 tristate "MCF54xx watchdog support" 1803 depends on M548x 1804 help 1805 To compile this driver as a module, choose M here: the 1806 module will be called m54xx_wdt. 1807 1808# MicroBlaze Architecture 1809 1810# MIPS Architecture 1811 1812config ATH79_WDT 1813 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1814 depends on ATH79 || (ARM && COMPILE_TEST) 1815 help 1816 Hardware driver for the built-in watchdog timer on the Atheros 1817 AR71XX/AR724X/AR913X SoCs. 1818 1819config BCM47XX_WDT 1820 tristate "Broadcom BCM47xx Watchdog Timer" 1821 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1822 select WATCHDOG_CORE 1823 help 1824 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1825 1826config RC32434_WDT 1827 tristate "IDT RC32434 SoC Watchdog Timer" 1828 depends on MIKROTIK_RB532 1829 help 1830 Hardware driver for the IDT RC32434 SoC built-in 1831 watchdog timer. 1832 1833 To compile this driver as a module, choose M here: the 1834 module will be called rc32434_wdt. 1835 1836config INDYDOG 1837 tristate "Indy/I2 Hardware Watchdog" 1838 depends on SGI_HAS_INDYDOG 1839 help 1840 Hardware driver for the Indy's/I2's watchdog. This is a 1841 watchdog timer that will reboot the machine after a 60 second 1842 timer expired and no process has written to /dev/watchdog during 1843 that time. 1844 1845config JZ4740_WDT 1846 tristate "Ingenic jz4740 SoC hardware watchdog" 1847 depends on MIPS || COMPILE_TEST 1848 depends on COMMON_CLK 1849 select WATCHDOG_CORE 1850 select MFD_SYSCON 1851 help 1852 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1853 1854config WDT_MTX1 1855 tristate "MTX-1 Hardware Watchdog" 1856 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1857 help 1858 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1859 will reboot the machine after a 100 seconds timer expired. 1860 1861config SIBYTE_WDOG 1862 tristate "Sibyte SoC hardware watchdog" 1863 depends on CPU_SB1 1864 help 1865 Watchdog driver for the built in watchdog hardware in Sibyte 1866 SoC processors. There are apparently two watchdog timers 1867 on such processors; this driver supports only the first one, 1868 because currently Linux only supports exporting one watchdog 1869 to userspace. 1870 1871 To compile this driver as a loadable module, choose M here. 1872 The module will be called sb_wdog. 1873 1874config TXX9_WDT 1875 tristate "Toshiba TXx9 Watchdog Timer" 1876 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1877 select WATCHDOG_CORE 1878 help 1879 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1880 1881config OCTEON_WDT 1882 tristate "Cavium OCTEON SOC family Watchdog Timer" 1883 depends on CAVIUM_OCTEON_SOC 1884 default y 1885 select WATCHDOG_CORE 1886 select EXPORT_UASM if OCTEON_WDT = m 1887 help 1888 Hardware driver for OCTEON's on chip watchdog timer. 1889 Enables the watchdog for all cores running Linux. It 1890 installs a NMI handler and pokes the watchdog based on an 1891 interrupt. On first expiration of the watchdog, the 1892 interrupt handler pokes it. The second expiration causes an 1893 NMI that prints a message. The third expiration causes a 1894 global soft reset. 1895 1896 When userspace has /dev/watchdog open, no poking is done 1897 from the first interrupt, it is then only poked when the 1898 device is written. 1899 1900config MARVELL_GTI_WDT 1901 tristate "Marvell GTI Watchdog driver" 1902 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1903 default ARCH_THUNDER 1904 select WATCHDOG_CORE 1905 help 1906 Marvell GTI hardware supports watchdog timer. First timeout 1907 works as watchdog pretimeout and installed interrupt handler 1908 will be called on first timeout. Hardware can generate interrupt 1909 to SCP on second timeout but it is not enabled, so second 1910 timeout is ignored. If device poke does not happen then system 1911 will reboot on third timeout. 1912 1913config BCM2835_WDT 1914 tristate "Broadcom BCM2835 hardware watchdog" 1915 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1916 select WATCHDOG_CORE 1917 help 1918 Watchdog driver for the built in watchdog hardware in Broadcom 1919 BCM2835 SoC. 1920 1921 To compile this driver as a loadable module, choose M here. 1922 The module will be called bcm2835_wdt. 1923 1924config BCM_KONA_WDT 1925 tristate "BCM Kona Watchdog" 1926 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1927 select WATCHDOG_CORE 1928 help 1929 Support for the watchdog timer on the following Broadcom BCM281xx 1930 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1931 BCM28155 variants. 1932 1933 Say 'Y' or 'M' here to enable the driver. The module will be called 1934 bcm_kona_wdt. 1935 1936config BCM_KONA_WDT_DEBUG 1937 bool "DEBUGFS support for BCM Kona Watchdog" 1938 depends on BCM_KONA_WDT || COMPILE_TEST 1939 help 1940 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1941 access to the driver's internal data structures as well as watchdog 1942 timer hardware registres. 1943 1944 If in doubt, say 'N'. 1945 1946config BCM7038_WDT 1947 tristate "BCM63xx/BCM7038 Watchdog" 1948 select WATCHDOG_CORE 1949 depends on HAS_IOMEM 1950 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1951 help 1952 Watchdog driver for the built-in hardware in Broadcom 7038 and 1953 later SoCs used in set-top boxes. BCM7038 was made public 1954 during the 2004 CES, and since then, many Broadcom chips use this 1955 watchdog block, including some cable modem chips and DSL (63xx) 1956 chips. 1957 1958config IMGPDC_WDT 1959 tristate "Imagination Technologies PDC Watchdog Timer" 1960 depends on HAS_IOMEM 1961 depends on MIPS || COMPILE_TEST 1962 select WATCHDOG_CORE 1963 help 1964 Driver for Imagination Technologies PowerDown Controller 1965 Watchdog Timer. 1966 1967 To compile this driver as a loadable module, choose M here. 1968 The module will be called imgpdc_wdt. 1969 1970config LANTIQ_WDT 1971 tristate "Lantiq SoC watchdog" 1972 depends on LANTIQ 1973 select WATCHDOG_CORE 1974 help 1975 Hardware driver for the Lantiq SoC Watchdog Timer. 1976 1977config LOONGSON1_WDT 1978 tristate "Loongson1 SoC hardware watchdog" 1979 depends on MACH_LOONGSON32 || COMPILE_TEST 1980 select WATCHDOG_CORE 1981 help 1982 Hardware driver for the Loongson1 SoC Watchdog Timer. 1983 1984config RALINK_WDT 1985 tristate "Ralink SoC watchdog" 1986 select WATCHDOG_CORE 1987 depends on RALINK 1988 help 1989 Hardware driver for the Ralink SoC Watchdog Timer. 1990 1991config GXP_WATCHDOG 1992 tristate "HPE GXP watchdog support" 1993 depends on ARCH_HPE_GXP || COMPILE_TEST 1994 select WATCHDOG_CORE 1995 help 1996 Say Y here to include support for the watchdog timer 1997 in HPE GXP SoCs. 1998 1999 To compile this driver as a module, choose M here. 2000 The module will be called gxp-wdt. 2001 2002config MT7621_WDT 2003 tristate "Mediatek SoC watchdog" 2004 select WATCHDOG_CORE 2005 select REGMAP_MMIO 2006 select MFD_SYSCON 2007 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 2008 help 2009 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 2010 2011config PIC32_WDT 2012 tristate "Microchip PIC32 hardware watchdog" 2013 select WATCHDOG_CORE 2014 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2015 help 2016 Watchdog driver for the built in watchdog hardware in a PIC32. 2017 2018 Configuration bits must be set appropriately for the watchdog to be 2019 controlled by this driver. 2020 2021 To compile this driver as a loadable module, choose M here. 2022 The module will be called pic32-wdt. 2023 2024config PIC32_DMT 2025 tristate "Microchip PIC32 Deadman Timer" 2026 select WATCHDOG_CORE 2027 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2028 help 2029 Watchdog driver for PIC32 instruction fetch counting timer. This 2030 specific timer is typically be used in mission critical and safety 2031 critical applications, where any single failure of the software 2032 functionality and sequencing must be detected. 2033 2034 To compile this driver as a loadable module, choose M here. 2035 The module will be called pic32-dmt. 2036 2037# PARISC Architecture 2038 2039# POWERPC Architecture 2040 2041config GEF_WDT 2042 tristate "GE Watchdog Timer" 2043 depends on GE_FPGA 2044 help 2045 Watchdog timer found in a number of GE single board computers. 2046 2047config MPC5200_WDT 2048 bool "MPC52xx Watchdog Timer" 2049 depends on PPC_MPC52xx || COMPILE_TEST 2050 help 2051 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2052 2053config 8xxx_WDT 2054 tristate "MPC8xxx Platform Watchdog Timer" 2055 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2056 select WATCHDOG_CORE 2057 help 2058 This driver is for a SoC level watchdog that exists on some 2059 Freescale PowerPC processors. So far this driver supports: 2060 - MPC8xx watchdogs 2061 - MPC83xx watchdogs 2062 - MPC86xx watchdogs 2063 2064 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2065 2066config PIKA_WDT 2067 tristate "PIKA FPGA Watchdog" 2068 depends on WARP || (PPC64 && COMPILE_TEST) 2069 default WARP 2070 help 2071 This enables the watchdog in the PIKA FPGA. Currently used on 2072 the Warp platform. 2073 2074config BOOKE_WDT 2075 tristate "PowerPC Book-E Watchdog Timer" 2076 depends on BOOKE || 4xx 2077 select WATCHDOG_CORE 2078 help 2079 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2080 MPC85xx SOCs and the IBM PowerPC 440. 2081 2082 Please see Documentation/watchdog/watchdog-api.rst for 2083 more information. 2084 2085config BOOKE_WDT_DEFAULT_TIMEOUT 2086 int "PowerPC Book-E Watchdog Timer Default Timeout" 2087 depends on BOOKE_WDT 2088 default 38 if PPC_E500 2089 range 0 63 if PPC_E500 2090 default 3 if !PPC_E500 2091 range 0 3 if !PPC_E500 2092 help 2093 Select the default watchdog timer period to be used by the PowerPC 2094 Book-E watchdog driver. A watchdog "event" occurs when the bit 2095 position represented by this number transitions from zero to one. 2096 2097 For Freescale Book-E processors, this is a number between 0 and 63. 2098 For other Book-E processors, this is a number between 0 and 3. 2099 2100 The value can be overridden by the wdt_period command-line parameter. 2101 2102config MEN_A21_WDT 2103 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2104 select WATCHDOG_CORE 2105 depends on GPIOLIB || COMPILE_TEST 2106 help 2107 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2108 2109 The driver can also be built as a module. If so, the module will be 2110 called mena21_wdt. 2111 2112 If unsure select N here. 2113 2114# PPC64 Architecture 2115 2116config PSERIES_WDT 2117 tristate "POWER Architecture Platform Watchdog Timer" 2118 depends on PPC_PSERIES 2119 select WATCHDOG_CORE 2120 help 2121 Driver for virtual watchdog timers provided by PAPR 2122 hypervisors (e.g. PowerVM, KVM). 2123 2124config WATCHDOG_RTAS 2125 tristate "RTAS watchdog" 2126 depends on PPC_RTAS 2127 help 2128 This driver adds watchdog support for the RTAS watchdog. 2129 2130 To compile this driver as a module, choose M here. The module 2131 will be called wdrtas. 2132 2133# RISC-V Architecture 2134 2135config STARFIVE_WATCHDOG 2136 tristate "StarFive Watchdog support" 2137 depends on ARCH_STARFIVE || COMPILE_TEST 2138 select WATCHDOG_CORE 2139 default ARCH_STARFIVE 2140 help 2141 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2142 SoC. This driver can also be built as a module if choose M. 2143 2144# S390 Architecture 2145 2146config DIAG288_WATCHDOG 2147 tristate "System z diag288 Watchdog" 2148 depends on S390 2149 select WATCHDOG_CORE 2150 help 2151 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2152 provide a virtual watchdog timer to their guest that cause a 2153 user define Control Program command to be executed after a 2154 timeout. 2155 LPAR provides a very similar interface. This driver handles 2156 both. 2157 2158 To compile this driver as a module, choose M here. The module 2159 will be called diag288_wdt. 2160 2161# SUPERH (sh + sh64) Architecture 2162 2163config SH_WDT 2164 tristate "SuperH Watchdog" 2165 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2166 select WATCHDOG_CORE 2167 help 2168 This driver adds watchdog support for the integrated watchdog in the 2169 SuperH processors. If you have one of these processors and wish 2170 to have watchdog support enabled, say Y, otherwise say N. 2171 2172 As a side note, saying Y here will automatically boost HZ to 1000 2173 so that the timer has a chance to clear the overflow counter. On 2174 slower systems (such as the SH-2 and SH-3) this will likely yield 2175 some performance issues. As such, the WDT should be avoided here 2176 unless it is absolutely necessary. 2177 2178 To compile this driver as a module, choose M here: the 2179 module will be called shwdt. 2180 2181# SPARC Architecture 2182 2183# SPARC64 Architecture 2184 2185config WATCHDOG_CP1XXX 2186 tristate "CP1XXX Hardware Watchdog support" 2187 depends on SPARC64 && PCI 2188 help 2189 This is the driver for the hardware watchdog timers present on 2190 Sun Microsystems CompactPCI models CP1400 and CP1500. 2191 2192 To compile this driver as a module, choose M here: the 2193 module will be called cpwatchdog. 2194 2195 If you do not have a CompactPCI model CP1400 or CP1500, or 2196 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2197 you should say N to this option. 2198 2199config WATCHDOG_RIO 2200 tristate "RIO Hardware Watchdog support" 2201 depends on SPARC64 && PCI 2202 help 2203 Say Y here to support the hardware watchdog capability on Sun RIO 2204 machines. The watchdog timeout period is normally one minute but 2205 can be changed with a boot-time parameter. 2206 2207config WATCHDOG_SUN4V 2208 tristate "Sun4v Watchdog support" 2209 select WATCHDOG_CORE 2210 depends on SPARC64 2211 help 2212 Say Y here to support the hypervisor watchdog capability embedded 2213 in the SPARC sun4v architecture. 2214 2215 To compile this driver as a module, choose M here. The module will 2216 be called sun4v_wdt. 2217 2218# XTENSA Architecture 2219 2220# Xen Architecture 2221 2222config XEN_WDT 2223 tristate "Xen Watchdog support" 2224 depends on XEN 2225 select WATCHDOG_CORE 2226 help 2227 Say Y here to support the hypervisor watchdog capability provided 2228 by Xen 4.0 and newer. The watchdog timeout period is normally one 2229 minute but can be changed with a boot-time parameter. 2230 2231config UML_WATCHDOG 2232 tristate "UML watchdog" 2233 depends on UML || COMPILE_TEST 2234 2235# 2236# ISA-based Watchdog Cards 2237# 2238 2239comment "ISA-based Watchdog Cards" 2240 depends on ISA 2241 2242config PCWATCHDOG 2243 tristate "Berkshire Products ISA-PC Watchdog" 2244 depends on ISA 2245 help 2246 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2247 This card simply watches your kernel to make sure it doesn't freeze, 2248 and if it does, it reboots your computer after a certain amount of 2249 time. This driver is like the WDT501 driver but for different 2250 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2251 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2252 2253 To compile this driver as a module, choose M here: the 2254 module will be called pcwd. 2255 2256 Most people will say N. 2257 2258config MIXCOMWD 2259 tristate "Mixcom Watchdog" 2260 depends on ISA 2261 help 2262 This is a driver for the Mixcom hardware watchdog cards. This 2263 watchdog simply watches your kernel to make sure it doesn't freeze, 2264 and if it does, it reboots your computer after a certain amount of 2265 time. 2266 2267 To compile this driver as a module, choose M here: the 2268 module will be called mixcomwd. 2269 2270 Most people will say N. 2271 2272config WDT 2273 tristate "WDT Watchdog timer" 2274 depends on ISA 2275 help 2276 If you have a WDT500P or WDT501P watchdog board, say Y here, 2277 otherwise N. It is not possible to probe for this board, which means 2278 that you have to inform the kernel about the IO port and IRQ that 2279 is needed (you can do this via the io and irq parameters) 2280 2281 To compile this driver as a module, choose M here: the 2282 module will be called wdt. 2283 2284# 2285# PCI-based Watchdog Cards 2286# 2287 2288comment "PCI-based Watchdog Cards" 2289 depends on PCI 2290 2291config PCIPCWATCHDOG 2292 tristate "Berkshire Products PCI-PC Watchdog" 2293 depends on PCI && HAS_IOPORT 2294 help 2295 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2296 This card simply watches your kernel to make sure it doesn't freeze, 2297 and if it does, it reboots your computer after a certain amount of 2298 time. The card can also monitor the internal temperature of the PC. 2299 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2300 2301 To compile this driver as a module, choose M here: the 2302 module will be called pcwd_pci. 2303 2304 Most people will say N. 2305 2306config WDTPCI 2307 tristate "PCI-WDT500/501 Watchdog timer" 2308 depends on PCI && HAS_IOPORT 2309 help 2310 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2311 2312 If you have a PCI-WDT501 watchdog board then you can enable the 2313 temperature sensor by setting the type parameter to 501. 2314 2315 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2316 can do this via the tachometer parameter. Only do this if you have a 2317 fan tachometer actually set up. 2318 2319 To compile this driver as a module, choose M here: the 2320 module will be called wdt_pci. 2321 2322# 2323# USB-based Watchdog Cards 2324# 2325 2326comment "USB-based Watchdog Cards" 2327 depends on USB 2328 2329config USBPCWATCHDOG 2330 tristate "Berkshire Products USB-PC Watchdog" 2331 depends on USB 2332 help 2333 This is the driver for the Berkshire Products USB-PC Watchdog card. 2334 This card simply watches your kernel to make sure it doesn't freeze, 2335 and if it does, it reboots your computer after a certain amount of 2336 time. The card can also monitor the internal temperature of the PC. 2337 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2338 2339 To compile this driver as a module, choose M here: the 2340 module will be called pcwd_usb. 2341 2342 Most people will say N. 2343 2344config KEEMBAY_WATCHDOG 2345 tristate "Intel Keem Bay SoC non-secure watchdog" 2346 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2347 select WATCHDOG_CORE 2348 help 2349 This option enable support for an In-secure watchdog timer driver for 2350 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2351 count unit. An interrupt will be triggered, when the count crosses 2352 the threshold configured in the register. 2353 2354 To compile this driver as a module, choose M here: the 2355 module will be called keembay_wdt. 2356 2357endif # WATCHDOG 2358