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 IMX2_WDT 764 tristate "IMX2+ Watchdog" 765 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 766 select REGMAP_MMIO 767 select WATCHDOG_CORE 768 help 769 This is the driver for the hardware watchdog 770 on the Freescale IMX2 and later processors. 771 If you have one of these processors and wish to have 772 watchdog support enabled, say Y, otherwise say N. 773 774 To compile this driver as a module, choose M here: the 775 module will be called imx2_wdt. 776 777config IMX_SC_WDT 778 tristate "IMX SC Watchdog" 779 depends on HAVE_ARM_SMCCC 780 depends on IMX_SCU || COMPILE_TEST 781 select WATCHDOG_CORE 782 help 783 This is the driver for the system controller watchdog 784 on the NXP i.MX SoCs with system controller inside, the 785 watchdog driver will call ARM SMC API and trap into 786 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 787 will request system controller to execute the operations. 788 If you have one of these processors and wish to have 789 watchdog support enabled, say Y, otherwise say N. 790 791 To compile this driver as a module, choose M here: the 792 module will be called imx_sc_wdt. 793 794config IMX7ULP_WDT 795 tristate "IMX7ULP Watchdog" 796 depends on ARCH_MXC || COMPILE_TEST 797 select WATCHDOG_CORE 798 help 799 This is the driver for the hardware watchdog on the Freescale 800 IMX7ULP and later processors. If you have one of these 801 processors and wish to have watchdog support enabled, 802 say Y, otherwise say N. 803 804 To compile this driver as a module, choose M here: the 805 module will be called imx7ulp_wdt. 806 807config S32G_WDT 808 tristate "S32G Watchdog" 809 depends on ARCH_S32 || COMPILE_TEST 810 select WATCHDOG_CORE 811 help 812 This is the driver for the hardware watchdog on the NXP 813 S32G platforms. If you wish to have watchdog support 814 enabled, say Y, otherwise say N. 815 816config DB500_WATCHDOG 817 tristate "ST-Ericsson DB800 watchdog" 818 depends on MFD_DB8500_PRCMU 819 select WATCHDOG_CORE 820 default y 821 help 822 Say Y here to include Watchdog timer support for the watchdog 823 existing in the prcmu of ST-Ericsson DB8500 platform. 824 825 To compile this driver as a module, choose M here: the 826 module will be called db500_wdt. 827 828config RETU_WATCHDOG 829 tristate "Retu watchdog" 830 depends on MFD_RETU 831 select WATCHDOG_CORE 832 help 833 Retu watchdog driver for Nokia Internet Tablets (770, N800, 834 N810). At least on N800 the watchdog cannot be disabled, so 835 this driver is essential and you should enable it. 836 837 To compile this driver as a module, choose M here: the 838 module will be called retu_wdt. 839 840config MOXART_WDT 841 tristate "MOXART watchdog" 842 depends on ARCH_MOXART || COMPILE_TEST 843 help 844 Say Y here to include Watchdog timer support for the watchdog 845 existing on the MOXA ART SoC series platforms. 846 847 To compile this driver as a module, choose M here: the 848 module will be called moxart_wdt. 849 850config ST_LPC_WATCHDOG 851 tristate "STMicroelectronics LPC Watchdog" 852 depends on ARCH_STI || COMPILE_TEST 853 depends on OF 854 select WATCHDOG_CORE 855 help 856 Say Y here to include STMicroelectronics Low Power Controller 857 (LPC) based Watchdog timer support. 858 859 To compile this driver as a module, choose M here: the 860 module will be called st_lpc_wdt. 861 862config TEGRA_WATCHDOG 863 tristate "Tegra watchdog" 864 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 865 select WATCHDOG_CORE 866 help 867 Say Y here to include support for the watchdog timer 868 embedded in NVIDIA Tegra SoCs. 869 870 To compile this driver as a module, choose M here: the 871 module will be called tegra_wdt. 872 873config QCOM_WDT 874 tristate "QCOM watchdog" 875 depends on HAS_IOMEM 876 depends on ARCH_QCOM || COMPILE_TEST 877 select WATCHDOG_CORE 878 help 879 Say Y here to include Watchdog timer support for the watchdog found 880 on QCOM chipsets. Currently supported targets are the MSM8960, 881 APQ8064, and IPQ8064. 882 883 To compile this driver as a module, choose M here: the 884 module will be called qcom_wdt. 885 886config MESON_GXBB_WATCHDOG 887 tristate "Amlogic Meson GXBB SoCs watchdog support" 888 depends on ARCH_MESON || COMPILE_TEST 889 select WATCHDOG_CORE 890 help 891 Say Y here to include support for the watchdog timer 892 in Amlogic Meson GXBB SoCs. 893 To compile this driver as a module, choose M here: the 894 module will be called meson_gxbb_wdt. 895 896config MESON_WATCHDOG 897 tristate "Amlogic Meson SoCs watchdog support" 898 depends on ARCH_MESON || COMPILE_TEST 899 select WATCHDOG_CORE 900 help 901 Say Y here to include support for the watchdog timer 902 in Amlogic Meson SoCs. 903 To compile this driver as a module, choose M here: the 904 module will be called meson_wdt. 905 906config MEDIATEK_WATCHDOG 907 tristate "Mediatek SoCs watchdog support" 908 depends on ARCH_MEDIATEK || COMPILE_TEST 909 default ARCH_MEDIATEK 910 select WATCHDOG_CORE 911 select RESET_CONTROLLER 912 help 913 Say Y here to include support for the watchdog timer 914 in Mediatek SoCs. 915 To compile this driver as a module, choose M here: the 916 module will be called mtk_wdt. 917 918config DIGICOLOR_WATCHDOG 919 tristate "Conexant Digicolor SoCs watchdog support" 920 depends on ARCH_DIGICOLOR || COMPILE_TEST 921 select WATCHDOG_CORE 922 help 923 Say Y here to include support for the watchdog timer 924 in Conexant Digicolor SoCs. 925 To compile this driver as a module, choose M here: the 926 module will be called digicolor_wdt. 927 928config ARM_SMC_WATCHDOG 929 tristate "ARM Secure Monitor Call based watchdog support" 930 depends on ARM || ARM64 931 depends on OF 932 depends on HAVE_ARM_SMCCC 933 select WATCHDOG_CORE 934 help 935 Say Y here to include support for a watchdog timer 936 implemented by the EL3 Secure Monitor on ARM platforms. 937 Requires firmware support. 938 To compile this driver as a module, choose M here: the 939 module will be called arm_smc_wdt. 940 941config LPC18XX_WATCHDOG 942 tristate "LPC18xx/43xx Watchdog" 943 depends on ARCH_LPC18XX || COMPILE_TEST 944 depends on HAS_IOMEM 945 select WATCHDOG_CORE 946 help 947 Say Y here if to include support for the watchdog timer 948 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 949 processors. 950 To compile this driver as a module, choose M here: the 951 module will be called lpc18xx_wdt. 952 953config RENESAS_WDT 954 tristate "Renesas WDT Watchdog" 955 depends on ARCH_RENESAS || COMPILE_TEST 956 select WATCHDOG_CORE 957 help 958 This driver adds watchdog support for the integrated watchdogs in the 959 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 960 961config RENESAS_RZAWDT 962 tristate "Renesas RZ/A WDT Watchdog" 963 depends on ARCH_RENESAS || COMPILE_TEST 964 select WATCHDOG_CORE 965 help 966 This driver adds watchdog support for the integrated watchdogs in the 967 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 968 969config RENESAS_RZN1WDT 970 tristate "Renesas RZ/N1 watchdog" 971 depends on ARCH_RENESAS || COMPILE_TEST 972 select WATCHDOG_CORE 973 help 974 This driver adds watchdog support for the integrated watchdogs in the 975 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 976 977config RENESAS_RZG2LWDT 978 tristate "Renesas RZ/G2L WDT Watchdog" 979 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 980 depends on PM || COMPILE_TEST 981 select WATCHDOG_CORE 982 help 983 This driver adds watchdog support for the integrated watchdogs in the 984 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 985 986config RENESAS_RZV2HWDT 987 tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog" 988 depends on ARCH_RENESAS || COMPILE_TEST 989 depends on PM || COMPILE_TEST 990 select WATCHDOG_CORE 991 help 992 This driver adds watchdog support for the integrated watchdogs in the 993 Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a 994 system. 995 996config ASPEED_WATCHDOG 997 tristate "Aspeed BMC watchdog support" 998 depends on ARCH_ASPEED || COMPILE_TEST 999 select WATCHDOG_CORE 1000 help 1001 Say Y here to include support for the watchdog timer 1002 in Aspeed BMC SoCs. 1003 1004 This driver is required to reboot the SoC. 1005 1006 To compile this driver as a module, choose M here: the 1007 module will be called aspeed_wdt. 1008 1009config STM32_WATCHDOG 1010 tristate "STM32 Independent WatchDoG (IWDG) support" 1011 depends on ARCH_STM32 || COMPILE_TEST 1012 select WATCHDOG_CORE 1013 default ARCH_STM32 1014 help 1015 Say Y here to include support for the watchdog timer 1016 in stm32 SoCs. 1017 1018 To compile this driver as a module, choose M here: the 1019 module will be called stm32_iwdg. 1020 1021config STPMIC1_WATCHDOG 1022 tristate "STPMIC1 PMIC watchdog support" 1023 depends on MFD_STPMIC1 1024 select WATCHDOG_CORE 1025 help 1026 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1027 If the watchdog timer expires, stpmic1 will shut down all its power 1028 supplies. 1029 1030 To compile this driver as a module, choose M here: the 1031 module will be called spmic1_wdt. 1032 1033config UNIPHIER_WATCHDOG 1034 tristate "UniPhier watchdog support" 1035 depends on ARCH_UNIPHIER || COMPILE_TEST 1036 depends on OF && MFD_SYSCON 1037 select WATCHDOG_CORE 1038 help 1039 Say Y here to include support watchdog timer embedded 1040 into the UniPhier system. 1041 1042 To compile this driver as a module, choose M here: the 1043 module will be called uniphier_wdt. 1044 1045config RTD119X_WATCHDOG 1046 bool "Realtek RTD119x/RTD129x watchdog support" 1047 depends on ARCH_REALTEK || COMPILE_TEST 1048 depends on OF 1049 select WATCHDOG_CORE 1050 default ARCH_REALTEK 1051 help 1052 Say Y here to include support for the watchdog timer in 1053 Realtek RTD1295 SoCs. 1054 1055config REALTEK_OTTO_WDT 1056 tristate "Realtek Otto MIPS watchdog support" 1057 depends on MACH_REALTEK_RTL || COMPILE_TEST 1058 depends on COMMON_CLK 1059 select WATCHDOG_CORE 1060 default MACH_REALTEK_RTL 1061 help 1062 Say Y here to include support for the watchdog timer on Realtek 1063 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1064 notifications and system reset on timeout. 1065 1066 When built as a module this will be called realtek_otto_wdt. 1067 1068config SPRD_WATCHDOG 1069 tristate "Spreadtrum watchdog support" 1070 depends on ARCH_SPRD || COMPILE_TEST 1071 select WATCHDOG_CORE 1072 help 1073 Say Y here to include watchdog timer supported 1074 by Spreadtrum system. 1075 1076config PM8916_WATCHDOG 1077 tristate "QCOM PM8916 pmic watchdog" 1078 depends on OF && MFD_SPMI_PMIC 1079 select WATCHDOG_CORE 1080 help 1081 Say Y here to include support watchdog timer embedded into the 1082 pm8916 module. 1083 1084config VISCONTI_WATCHDOG 1085 tristate "Toshiba Visconti series watchdog support" 1086 depends on ARCH_VISCONTI || COMPILE_TEST 1087 select WATCHDOG_CORE 1088 help 1089 Say Y here to include support for the watchdog timer in Toshiba 1090 Visconti SoCs. 1091 1092config MSC313E_WATCHDOG 1093 tristate "MStar MSC313e watchdog" 1094 depends on ARCH_MSTARV7 || COMPILE_TEST 1095 select WATCHDOG_CORE 1096 help 1097 Say Y here to include support for the Watchdog timer embedded 1098 into MStar MSC313e chips. This will reboot your system when the 1099 timeout is reached. 1100 1101 To compile this driver as a module, choose M here: the 1102 module will be called msc313e_wdt. 1103 1104config APPLE_WATCHDOG 1105 tristate "Apple SoC watchdog" 1106 depends on ARCH_APPLE || COMPILE_TEST 1107 select WATCHDOG_CORE 1108 help 1109 Say Y here to include support for the Watchdog found in Apple 1110 SoCs such as the M1. Next to the common watchdog features this 1111 driver is also required in order to reboot these SoCs. 1112 1113 To compile this driver as a module, choose M here: the 1114 module will be called apple_wdt. 1115 1116config SUNPLUS_WATCHDOG 1117 tristate "Sunplus watchdog support" 1118 depends on ARCH_SUNPLUS || COMPILE_TEST 1119 select WATCHDOG_CORE 1120 help 1121 Say Y here to include support for the watchdog timer 1122 in Sunplus SoCs. 1123 1124 To compile this driver as a module, choose M here: the 1125 module will be called sunplus_wdt. 1126 1127# X86 (i386 + ia64 + x86_64) Architecture 1128 1129config ACQUIRE_WDT 1130 tristate "Acquire SBC Watchdog Timer" 1131 depends on X86 1132 help 1133 This is the driver for the hardware watchdog on Single Board 1134 Computers produced by Acquire Inc (and others). This watchdog 1135 simply watches your kernel to make sure it doesn't freeze, and if 1136 it does, it reboots your computer after a certain amount of time. 1137 1138 To compile this driver as a module, choose M here: the 1139 module will be called acquirewdt. 1140 1141 Most people will say N. 1142 1143config ADVANTECH_WDT 1144 tristate "Advantech SBC Watchdog Timer" 1145 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1146 help 1147 If you are configuring a Linux kernel for the Advantech single-board 1148 computer, say `Y' here to support its built-in watchdog timer 1149 feature. More information can be found at 1150 <https://www.advantech.com.tw/products/> 1151 1152config ADVANTECH_EC_WDT 1153 tristate "Advantech Embedded Controller Watchdog Timer" 1154 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1155 select ISA_BUS_API 1156 select WATCHDOG_CORE 1157 help 1158 This driver supports Advantech products with ITE based Embedded Controller. 1159 It does not support Advantech products with other ECs or without EC. 1160 1161config ALIM1535_WDT 1162 tristate "ALi M1535 PMU Watchdog Timer" 1163 depends on (X86 || COMPILE_TEST) && PCI 1164 help 1165 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1166 1167 To compile this driver as a module, choose M here: the 1168 module will be called alim1535_wdt. 1169 1170 Most people will say N. 1171 1172config ALIM7101_WDT 1173 tristate "ALi M7101 PMU Computer Watchdog" 1174 depends on PCI 1175 help 1176 This is the driver for the hardware watchdog on the ALi M7101 PMU 1177 as used in the x86 Cobalt servers and also found in some 1178 SPARC Netra servers too. 1179 1180 To compile this driver as a module, choose M here: the 1181 module will be called alim7101_wdt. 1182 1183 Most people will say N. 1184 1185config CGBC_WDT 1186 tristate "Congatec Board Controller Watchdog Timer" 1187 depends on MFD_CGBC 1188 select WATCHDOG_CORE 1189 help 1190 Enables watchdog timer support for the Congatec Board Controller. 1191 1192 This driver can also be built as a module. If so, the module will be 1193 called cgbc_wdt. 1194 1195config EBC_C384_WDT 1196 tristate "WinSystems EBC-C384 Watchdog Timer" 1197 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1198 select ISA_BUS_API 1199 select WATCHDOG_CORE 1200 help 1201 Enables watchdog timer support for the watchdog timer on the 1202 WinSystems EBC-C384 motherboard. The timeout may be configured via 1203 the timeout module parameter. 1204 1205config EXAR_WDT 1206 tristate "Exar Watchdog Timer" 1207 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1208 select WATCHDOG_CORE 1209 help 1210 Enables watchdog timer support for the watchdog timer present 1211 in some Exar/MaxLinear UART chips like the XR28V38x. 1212 1213 To compile this driver as a module, choose M here: the 1214 module will be called exar_wdt. 1215 1216config F71808E_WDT 1217 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1218 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1219 select WATCHDOG_CORE 1220 help 1221 This is the driver for the hardware watchdog on the Fintek F71808E, 1222 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1223 F81866 Super I/O controllers. 1224 1225 You can compile this driver directly into the kernel, or use 1226 it as a module. The module will be called f71808e_wdt. 1227 1228config SP5100_TCO 1229 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1230 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1231 select WATCHDOG_CORE 1232 help 1233 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1234 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1235 the machine after its expiration. The expiration time can be 1236 configured with the "heartbeat" parameter. 1237 1238 To compile this driver as a module, choose M here: the 1239 module will be called sp5100_tco. 1240 1241config GEODE_WDT 1242 tristate "AMD Geode CS5535/CS5536 Watchdog" 1243 depends on CS5535_MFGPT 1244 help 1245 This driver enables a watchdog capability built into the 1246 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1247 processors. This watchdog watches your kernel to make sure 1248 it doesn't freeze, and if it does, it reboots your computer after 1249 a certain amount of time. 1250 1251 You can compile this driver directly into the kernel, or use 1252 it as a module. The module will be called geodewdt. 1253 1254config SC520_WDT 1255 tristate "AMD Elan SC520 processor Watchdog" 1256 depends on MELAN || COMPILE_TEST 1257 help 1258 This is the driver for the hardware watchdog built in to the 1259 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1260 This watchdog simply watches your kernel to make sure it doesn't 1261 freeze, and if it does, it reboots your computer after a certain 1262 amount of time. 1263 1264 You can compile this driver directly into the kernel, or use 1265 it as a module. The module will be called sc520_wdt. 1266 1267config SBC_FITPC2_WATCHDOG 1268 tristate "Compulab SBC-FITPC2 watchdog" 1269 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1270 help 1271 This is the driver for the built-in watchdog timer on the fit-PC2, 1272 fit-PC2i, CM-iAM single-board computers made by Compulab. 1273 1274 It's possible to enable the watchdog timer either from BIOS (F2) or 1275 from booted Linux. 1276 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1277 operational range. 1278 1279 Entering BIOS setup temporarily disables watchdog operation regardless 1280 of current state, so system will not be restarted while user is in 1281 BIOS setup. 1282 1283 Once the watchdog is enabled the system will be restarted every 1284 "Watchdog Timer Value" period, so to prevent it user can restart or 1285 disable the watchdog. 1286 1287 To compile this driver as a module, choose M here: the 1288 module will be called sbc_fitpc2_wdt. 1289 1290 Most people will say N. 1291 1292config EUROTECH_WDT 1293 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1294 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1295 help 1296 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1297 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1298 information are at <http://www.eurotech.it/>. 1299 1300config IB700_WDT 1301 tristate "IB700 SBC Watchdog Timer" 1302 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1303 help 1304 This is the driver for the hardware watchdog on the IB700 Single 1305 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1306 watchdog simply watches your kernel to make sure it doesn't freeze, 1307 and if it does, it reboots your computer after a certain amount of time. 1308 1309 This driver is like the WDT501 driver but for slightly different 1310 hardware. 1311 1312 To compile this driver as a module, choose M here: the 1313 module will be called ib700wdt. 1314 1315 Most people will say N. 1316 1317config IBMASR 1318 tristate "IBM Automatic Server Restart" 1319 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1320 help 1321 This is the driver for the IBM Automatic Server Restart watchdog 1322 timer built-in into some eServer xSeries machines. 1323 1324 To compile this driver as a module, choose M here: the 1325 module will be called ibmasr. 1326 1327config WAFER_WDT 1328 tristate "ICP Single Board Computer Watchdog Timer" 1329 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1330 help 1331 This is a driver for the hardware watchdog on the ICP Single 1332 Board Computer. This driver is working on (at least) the following 1333 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1334 1335 To compile this driver as a module, choose M here: the 1336 module will be called wafer5823wdt. 1337 1338config I6300ESB_WDT 1339 tristate "Intel 6300ESB Timer/Watchdog" 1340 depends on PCI 1341 select WATCHDOG_CORE 1342 help 1343 Hardware driver for the watchdog timer built into the Intel 1344 6300ESB controller hub. 1345 1346 To compile this driver as a module, choose M here: the 1347 module will be called i6300esb. 1348 1349config IE6XX_WDT 1350 tristate "Intel Atom E6xx Watchdog" 1351 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1352 select WATCHDOG_CORE 1353 select MFD_CORE 1354 select LPC_SCH 1355 help 1356 Hardware driver for the watchdog timer built into the Intel 1357 Atom E6XX (TunnelCreek) processor. 1358 1359 To compile this driver as a module, choose M here: the 1360 module will be called ie6xx_wdt. 1361 1362config INTEL_MID_WATCHDOG 1363 tristate "Intel MID Watchdog Timer" 1364 depends on X86_INTEL_MID 1365 select WATCHDOG_CORE 1366 help 1367 Watchdog timer driver built into the Intel SCU for Intel MID 1368 Platforms. 1369 1370 This driver currently supports only the watchdog evolution 1371 implementation in SCU, available for Merrifield generation. 1372 1373 To compile this driver as a module, choose M here. 1374 1375config INTEL_OC_WATCHDOG 1376 tristate "Intel OC Watchdog" 1377 depends on (X86 || COMPILE_TEST) && ACPI && HAS_IOPORT 1378 select WATCHDOG_CORE 1379 help 1380 Hardware driver for Intel Over-Clocking watchdog present in 1381 Platform Controller Hub (PCH) chipsets. 1382 1383 To compile this driver as a module, choose M here: the 1384 module will be called intel_oc_wdt. 1385 1386config ITCO_WDT 1387 tristate "Intel TCO Timer/Watchdog" 1388 depends on X86 && PCI 1389 select WATCHDOG_CORE 1390 depends on I2C || I2C=n 1391 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1392 depends on HAS_IOPORT # for I2C_I801 1393 select LPC_ICH if !EXPERT 1394 select I2C_I801 if !EXPERT && I2C 1395 help 1396 Hardware driver for the intel TCO timer based watchdog devices. 1397 These drivers are included in the Intel 82801 I/O Controller 1398 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1399 controller hub. 1400 1401 The TCO (Total Cost of Ownership) timer is a watchdog timer 1402 that will reboot the machine after its second expiration. The 1403 expiration time can be configured with the "heartbeat" parameter. 1404 1405 On some motherboards the driver may fail to reset the chipset's 1406 NO_REBOOT flag which prevents the watchdog from rebooting the 1407 machine. If this is the case you will get a kernel message like 1408 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1409 1410 To compile this driver as a module, choose M here: the 1411 module will be called iTCO_wdt. 1412 1413config ITCO_VENDOR_SUPPORT 1414 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1415 depends on ITCO_WDT 1416 help 1417 Add vendor specific support to the intel TCO timer based watchdog 1418 devices. At this moment we only have additional support for some 1419 SuperMicro Inc. motherboards. 1420 1421config IT8712F_WDT 1422 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1423 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1424 help 1425 This is the driver for the built-in watchdog timer on the IT8712F 1426 Super I/0 chipset used on many motherboards. 1427 1428 If the driver does not work, then make sure that the game port in 1429 the BIOS is enabled. 1430 1431 To compile this driver as a module, choose M here: the 1432 module will be called it8712f_wdt. 1433 1434config IT87_WDT 1435 tristate "IT87 Watchdog Timer" 1436 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1437 select WATCHDOG_CORE 1438 help 1439 This is the driver for the hardware watchdog on the ITE IT8607, 1440 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1441 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1442 IT8783 Super I/O chips. 1443 1444 This watchdog simply watches your kernel to make sure it doesn't 1445 freeze, and if it does, it reboots your computer after a certain 1446 amount of time. 1447 1448 To compile this driver as a module, choose M here: the module will 1449 be called it87_wdt. 1450 1451config HP_WATCHDOG 1452 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1453 select WATCHDOG_CORE 1454 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1455 help 1456 A software monitoring watchdog and NMI handling driver. This driver 1457 will detect lockups and provide a stack trace. This is a driver that 1458 will only load on an HP ProLiant system with a minimum of iLO2 support. 1459 To compile this driver as a module, choose M here: the module will be 1460 called hpwdt. 1461 1462config HPWDT_NMI_DECODING 1463 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1464 depends on X86 && HP_WATCHDOG 1465 default y 1466 help 1467 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1468 "Generate NMI to System" virtual button. When an NMI is claimed 1469 by the driver, panic is called. 1470 1471config KEMPLD_WDT 1472 tristate "Kontron COM Watchdog Timer" 1473 depends on MFD_KEMPLD 1474 select WATCHDOG_CORE 1475 help 1476 Support for the PLD watchdog on some Kontron ETX and COMexpress 1477 (ETXexpress) modules 1478 1479 This driver can also be built as a module. If so, the module will be 1480 called kempld_wdt. 1481 1482config SC1200_WDT 1483 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1484 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1485 help 1486 This is a driver for National Semiconductor PC87307/PC97307 hardware 1487 watchdog cards as found on the SC1200. This watchdog is mainly used 1488 for power management purposes and can be used to power down the device 1489 during inactivity periods (includes interrupt activity monitoring). 1490 1491 To compile this driver as a module, choose M here: the 1492 module will be called sc1200wdt. 1493 1494 Most people will say N. 1495 1496config SCx200_WDT 1497 tristate "National Semiconductor SCx200 Watchdog" 1498 depends on SCx200 && PCI 1499 help 1500 Enable the built-in watchdog timer support on the National 1501 Semiconductor SCx200 processors. 1502 1503 If compiled as a module, it will be called scx200_wdt. 1504 1505config PC87413_WDT 1506 tristate "NS PC87413 watchdog" 1507 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1508 help 1509 This is the driver for the hardware watchdog on the PC87413 chipset 1510 This watchdog simply watches your kernel to make sure it doesn't 1511 freeze, and if it does, it reboots your computer after a certain 1512 amount of time. 1513 1514 To compile this driver as a module, choose M here: the 1515 module will be called pc87413_wdt. 1516 1517 Most people will say N. 1518 1519config NV_TCO 1520 tristate "nVidia TCO Timer/Watchdog" 1521 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1522 help 1523 Hardware driver for the TCO timer built into the nVidia Hub family 1524 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1525 watchdog timer that will reboot the machine after its second 1526 expiration. The expiration time can be configured with the 1527 "heartbeat" parameter. 1528 1529 On some motherboards the driver may fail to reset the chipset's 1530 NO_REBOOT flag which prevents the watchdog from rebooting the 1531 machine. If this is the case you will get a kernel message like 1532 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1533 1534 To compile this driver as a module, choose M here: the 1535 module will be called nv_tco. 1536 1537config RDC321X_WDT 1538 tristate "RDC R-321x SoC watchdog" 1539 depends on X86_RDC321X || COMPILE_TEST 1540 depends on PCI 1541 help 1542 This is the driver for the built in hardware watchdog 1543 in the RDC R-321x SoC. 1544 1545 To compile this driver as a module, choose M here: the 1546 module will be called rdc321x_wdt. 1547 1548config 60XX_WDT 1549 tristate "SBC-60XX Watchdog Timer" 1550 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1551 help 1552 This driver can be used with the watchdog timer found on some 1553 single board computers, namely the 6010 PII based computer. 1554 It may well work with other cards. It reads port 0x443 to enable 1555 and re-set the watchdog timer, and reads port 0x45 to disable 1556 the watchdog. If you have a card that behave in similar ways, 1557 you can probably make this driver work with your card as well. 1558 1559 You can compile this driver directly into the kernel, or use 1560 it as a module. The module will be called sbc60xxwdt. 1561 1562config SBC8360_WDT 1563 tristate "SBC8360 Watchdog Timer" 1564 depends on X86_32 && HAS_IOPORT 1565 help 1566 1567 This is the driver for the hardware watchdog on the SBC8360 Single 1568 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1569 1570 To compile this driver as a module, choose M here: the 1571 module will be called sbc8360. 1572 1573 Most people will say N. 1574 1575config SBC7240_WDT 1576 tristate "SBC Nano 7240 Watchdog Timer" 1577 depends on X86_32 && HAS_IOPORT 1578 help 1579 This is the driver for the hardware watchdog found on the IEI 1580 single board computers EPIC Nano 7240 (and likely others). This 1581 watchdog simply watches your kernel to make sure it doesn't freeze, 1582 and if it does, it reboots your computer after a certain amount of 1583 time. 1584 1585 To compile this driver as a module, choose M here: the 1586 module will be called sbc7240_wdt. 1587 1588config SMSC_SCH311X_WDT 1589 tristate "SMSC SCH311X Watchdog Timer" 1590 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1591 help 1592 This is the driver for the hardware watchdog timer on the 1593 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1594 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1595 serial ports). 1596 1597 To compile this driver as a module, choose M here: the 1598 module will be called sch311x_wdt. 1599 1600config SMSC37B787_WDT 1601 tristate "Winbond SMsC37B787 Watchdog Timer" 1602 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1603 help 1604 This is the driver for the hardware watchdog component on the 1605 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1606 from Vision Systems and maybe others. 1607 1608 This watchdog simply watches your kernel to make sure it doesn't 1609 freeze, and if it does, it reboots your computer after a certain 1610 amount of time. 1611 1612 Usually a userspace daemon will notify the kernel WDT driver that 1613 userspace is still alive, at regular intervals. 1614 1615 To compile this driver as a module, choose M here: the 1616 module will be called smsc37b787_wdt. 1617 1618 Most people will say N. 1619 1620config TQMX86_WDT 1621 tristate "TQ-Systems TQMX86 Watchdog Timer" 1622 depends on X86 || COMPILE_TEST 1623 select WATCHDOG_CORE 1624 help 1625 This is the driver for the hardware watchdog timer in the TQMX86 IO 1626 controller found on some of their ComExpress Modules. 1627 1628 To compile this driver as a module, choose M here; the module 1629 will be called tqmx86_wdt. 1630 1631 Most people will say N. 1632 1633config VIA_WDT 1634 tristate "VIA Watchdog Timer" 1635 depends on (X86 || COMPILE_TEST) && PCI 1636 select WATCHDOG_CORE 1637 help 1638 This is the driver for the hardware watchdog timer on VIA 1639 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1640 1641 To compile this driver as a module, choose M here; the module 1642 will be called via_wdt. 1643 1644 Most people will say N. 1645 1646config W83627HF_WDT 1647 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1648 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1649 select WATCHDOG_CORE 1650 help 1651 This is the driver for the hardware watchdog on the following 1652 Super I/O chips. 1653 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1654 W83637HF 1655 W83667HG/HG-B 1656 W83687THF 1657 W83697HF 1658 W83697UG 1659 NCT6775 1660 NCT6776 1661 NCT6779 1662 NCT6791 1663 NCT6792 1664 NCT6102D/04D/06D 1665 NCT6116D 1666 1667 This watchdog simply watches your kernel to make sure it doesn't 1668 freeze, and if it does, it reboots your computer after a certain 1669 amount of time. 1670 1671 To compile this driver as a module, choose M here: the 1672 module will be called w83627hf_wdt. 1673 1674 Most people will say N. 1675 1676config W83877F_WDT 1677 tristate "W83877F (EMACS) Watchdog Timer" 1678 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1679 help 1680 This is the driver for the hardware watchdog on the W83877F chipset 1681 as used in EMACS PC-104 motherboards (and likely others). This 1682 watchdog simply watches your kernel to make sure it doesn't freeze, 1683 and if it does, it reboots your computer after a certain amount of 1684 time. 1685 1686 To compile this driver as a module, choose M here: the 1687 module will be called w83877f_wdt. 1688 1689 Most people will say N. 1690 1691config W83977F_WDT 1692 tristate "W83977F (PCM-5335) Watchdog Timer" 1693 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1694 help 1695 This is the driver for the hardware watchdog on the W83977F I/O chip 1696 as used in AAEON's PCM-5335 SBC (and likely others). This 1697 watchdog simply watches your kernel to make sure it doesn't freeze, 1698 and if it does, it reboots your computer after a certain amount of 1699 time. 1700 1701 To compile this driver as a module, choose M here: the 1702 module will be called w83977f_wdt. 1703 1704config MACHZ_WDT 1705 tristate "ZF MachZ Watchdog" 1706 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1707 help 1708 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1709 N. This is the driver for the watchdog timer built-in on that 1710 processor using ZF-Logic interface. This watchdog simply watches 1711 your kernel to make sure it doesn't freeze, and if it does, it 1712 reboots your computer after a certain amount of time. 1713 1714 To compile this driver as a module, choose M here: the 1715 module will be called machzwd. 1716 1717config SBC_EPX_C3_WATCHDOG 1718 tristate "Winsystems SBC EPX-C3 watchdog" 1719 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1720 help 1721 This is the driver for the built-in watchdog timer on the EPX-C3 1722 Single-board computer made by Winsystems, Inc. 1723 1724 *Note*: This hardware watchdog is not probeable and thus there 1725 is no way to know if writing to its IO address will corrupt 1726 your system or have any real effect. The only way to be sure 1727 that this driver does what you want is to make sure you 1728 are running it on an EPX-C3 from Winsystems with the watchdog 1729 timer at IO address 0x1ee and 0x1ef. It will write to both those 1730 IO ports. Basically, the assumption is made that if you compile 1731 this driver into your kernel and/or load it as a module, that you 1732 know what you are doing and that you are in fact running on an 1733 EPX-C3 board! 1734 1735 To compile this driver as a module, choose M here: the 1736 module will be called sbc_epx_c3. 1737 1738config INTEL_MEI_WDT 1739 tristate "Intel MEI iAMT Watchdog" 1740 depends on INTEL_MEI && X86 1741 select WATCHDOG_CORE 1742 help 1743 A device driver for the Intel MEI iAMT watchdog. 1744 1745 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1746 Whenever the OS hangs or crashes, iAMT will send an event 1747 to any subscriber to this event. The watchdog doesn't reset the 1748 the platform. 1749 1750 To compile this driver as a module, choose M here: 1751 the module will be called mei_wdt. 1752 1753config NI903X_WDT 1754 tristate "NI 903x/913x Watchdog" 1755 depends on X86 && ACPI 1756 select WATCHDOG_CORE 1757 help 1758 This is the driver for the watchdog timer on the National Instruments 1759 903x/913x real-time controllers. 1760 1761 To compile this driver as a module, choose M here: the module will be 1762 called ni903x_wdt. 1763 1764config NIC7018_WDT 1765 tristate "NIC7018 Watchdog" 1766 depends on HAS_IOPORT 1767 depends on ACPI || COMPILE_TEST 1768 select WATCHDOG_CORE 1769 help 1770 Support for National Instruments NIC7018 Watchdog. 1771 1772 To compile this driver as a module, choose M here: the module will be 1773 called nic7018_wdt. 1774 1775config SIEMENS_SIMATIC_IPC_WDT 1776 tristate "Siemens Simatic IPC Watchdog" 1777 depends on SIEMENS_SIMATIC_IPC && PCI 1778 default y 1779 select WATCHDOG_CORE 1780 select P2SB if X86 1781 help 1782 This driver adds support for several watchdogs found in Industrial 1783 PCs from Siemens. 1784 1785 To compile this driver as a module, choose M here: the module will be 1786 called simatic-ipc-wdt. 1787 1788# M68K Architecture 1789 1790config M54xx_WATCHDOG 1791 tristate "MCF54xx watchdog support" 1792 depends on M548x 1793 help 1794 To compile this driver as a module, choose M here: the 1795 module will be called m54xx_wdt. 1796 1797# MicroBlaze Architecture 1798 1799# MIPS Architecture 1800 1801config ATH79_WDT 1802 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1803 depends on ATH79 || (ARM && COMPILE_TEST) 1804 help 1805 Hardware driver for the built-in watchdog timer on the Atheros 1806 AR71XX/AR724X/AR913X SoCs. 1807 1808config BCM47XX_WDT 1809 tristate "Broadcom BCM47xx Watchdog Timer" 1810 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1811 select WATCHDOG_CORE 1812 help 1813 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1814 1815config RC32434_WDT 1816 tristate "IDT RC32434 SoC Watchdog Timer" 1817 depends on MIKROTIK_RB532 1818 help 1819 Hardware driver for the IDT RC32434 SoC built-in 1820 watchdog timer. 1821 1822 To compile this driver as a module, choose M here: the 1823 module will be called rc32434_wdt. 1824 1825config INDYDOG 1826 tristate "Indy/I2 Hardware Watchdog" 1827 depends on SGI_HAS_INDYDOG 1828 help 1829 Hardware driver for the Indy's/I2's watchdog. This is a 1830 watchdog timer that will reboot the machine after a 60 second 1831 timer expired and no process has written to /dev/watchdog during 1832 that time. 1833 1834config JZ4740_WDT 1835 tristate "Ingenic jz4740 SoC hardware watchdog" 1836 depends on MIPS || COMPILE_TEST 1837 depends on COMMON_CLK 1838 select WATCHDOG_CORE 1839 select MFD_SYSCON 1840 help 1841 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1842 1843config WDT_MTX1 1844 tristate "MTX-1 Hardware Watchdog" 1845 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1846 help 1847 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1848 will reboot the machine after a 100 seconds timer expired. 1849 1850config SIBYTE_WDOG 1851 tristate "Sibyte SoC hardware watchdog" 1852 depends on CPU_SB1 1853 help 1854 Watchdog driver for the built in watchdog hardware in Sibyte 1855 SoC processors. There are apparently two watchdog timers 1856 on such processors; this driver supports only the first one, 1857 because currently Linux only supports exporting one watchdog 1858 to userspace. 1859 1860 To compile this driver as a loadable module, choose M here. 1861 The module will be called sb_wdog. 1862 1863config TXX9_WDT 1864 tristate "Toshiba TXx9 Watchdog Timer" 1865 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1866 select WATCHDOG_CORE 1867 help 1868 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1869 1870config OCTEON_WDT 1871 tristate "Cavium OCTEON SOC family Watchdog Timer" 1872 depends on CAVIUM_OCTEON_SOC 1873 default y 1874 select WATCHDOG_CORE 1875 select EXPORT_UASM if OCTEON_WDT = m 1876 help 1877 Hardware driver for OCTEON's on chip watchdog timer. 1878 Enables the watchdog for all cores running Linux. It 1879 installs a NMI handler and pokes the watchdog based on an 1880 interrupt. On first expiration of the watchdog, the 1881 interrupt handler pokes it. The second expiration causes an 1882 NMI that prints a message. The third expiration causes a 1883 global soft reset. 1884 1885 When userspace has /dev/watchdog open, no poking is done 1886 from the first interrupt, it is then only poked when the 1887 device is written. 1888 1889config MARVELL_GTI_WDT 1890 tristate "Marvell GTI Watchdog driver" 1891 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1892 default ARCH_THUNDER 1893 select WATCHDOG_CORE 1894 help 1895 Marvell GTI hardware supports watchdog timer. First timeout 1896 works as watchdog pretimeout and installed interrupt handler 1897 will be called on first timeout. Hardware can generate interrupt 1898 to SCP on second timeout but it is not enabled, so second 1899 timeout is ignored. If device poke does not happen then system 1900 will reboot on third timeout. 1901 1902config BCM2835_WDT 1903 tristate "Broadcom BCM2835 hardware watchdog" 1904 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1905 select WATCHDOG_CORE 1906 help 1907 Watchdog driver for the built in watchdog hardware in Broadcom 1908 BCM2835 SoC. 1909 1910 To compile this driver as a loadable module, choose M here. 1911 The module will be called bcm2835_wdt. 1912 1913config BCM_KONA_WDT 1914 tristate "BCM Kona Watchdog" 1915 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1916 select WATCHDOG_CORE 1917 help 1918 Support for the watchdog timer on the following Broadcom BCM281xx 1919 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1920 BCM28155 variants. 1921 1922 Say 'Y' or 'M' here to enable the driver. The module will be called 1923 bcm_kona_wdt. 1924 1925config BCM_KONA_WDT_DEBUG 1926 bool "DEBUGFS support for BCM Kona Watchdog" 1927 depends on BCM_KONA_WDT || COMPILE_TEST 1928 help 1929 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1930 access to the driver's internal data structures as well as watchdog 1931 timer hardware registres. 1932 1933 If in doubt, say 'N'. 1934 1935config BCM7038_WDT 1936 tristate "BCM63xx/BCM7038 Watchdog" 1937 select WATCHDOG_CORE 1938 depends on HAS_IOMEM 1939 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1940 help 1941 Watchdog driver for the built-in hardware in Broadcom 7038 and 1942 later SoCs used in set-top boxes. BCM7038 was made public 1943 during the 2004 CES, and since then, many Broadcom chips use this 1944 watchdog block, including some cable modem chips and DSL (63xx) 1945 chips. 1946 1947config IMGPDC_WDT 1948 tristate "Imagination Technologies PDC Watchdog Timer" 1949 depends on HAS_IOMEM 1950 depends on MIPS || COMPILE_TEST 1951 select WATCHDOG_CORE 1952 help 1953 Driver for Imagination Technologies PowerDown Controller 1954 Watchdog Timer. 1955 1956 To compile this driver as a loadable module, choose M here. 1957 The module will be called imgpdc_wdt. 1958 1959config LANTIQ_WDT 1960 tristate "Lantiq SoC watchdog" 1961 depends on LANTIQ 1962 select WATCHDOG_CORE 1963 help 1964 Hardware driver for the Lantiq SoC Watchdog Timer. 1965 1966config LOONGSON1_WDT 1967 tristate "Loongson1 SoC hardware watchdog" 1968 depends on MACH_LOONGSON32 || COMPILE_TEST 1969 select WATCHDOG_CORE 1970 help 1971 Hardware driver for the Loongson1 SoC Watchdog Timer. 1972 1973config RALINK_WDT 1974 tristate "Ralink SoC watchdog" 1975 select WATCHDOG_CORE 1976 depends on RALINK 1977 help 1978 Hardware driver for the Ralink SoC Watchdog Timer. 1979 1980config GXP_WATCHDOG 1981 tristate "HPE GXP watchdog support" 1982 depends on ARCH_HPE_GXP || COMPILE_TEST 1983 select WATCHDOG_CORE 1984 help 1985 Say Y here to include support for the watchdog timer 1986 in HPE GXP SoCs. 1987 1988 To compile this driver as a module, choose M here. 1989 The module will be called gxp-wdt. 1990 1991config MT7621_WDT 1992 tristate "Mediatek SoC watchdog" 1993 select WATCHDOG_CORE 1994 select REGMAP_MMIO 1995 select MFD_SYSCON 1996 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1997 help 1998 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1999 2000config PIC32_WDT 2001 tristate "Microchip PIC32 hardware watchdog" 2002 select WATCHDOG_CORE 2003 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2004 help 2005 Watchdog driver for the built in watchdog hardware in a PIC32. 2006 2007 Configuration bits must be set appropriately for the watchdog to be 2008 controlled by this driver. 2009 2010 To compile this driver as a loadable module, choose M here. 2011 The module will be called pic32-wdt. 2012 2013config PIC32_DMT 2014 tristate "Microchip PIC32 Deadman Timer" 2015 select WATCHDOG_CORE 2016 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2017 help 2018 Watchdog driver for PIC32 instruction fetch counting timer. This 2019 specific timer is typically be used in mission critical and safety 2020 critical applications, where any single failure of the software 2021 functionality and sequencing must be detected. 2022 2023 To compile this driver as a loadable module, choose M here. 2024 The module will be called pic32-dmt. 2025 2026# PARISC Architecture 2027 2028# POWERPC Architecture 2029 2030config GEF_WDT 2031 tristate "GE Watchdog Timer" 2032 depends on GE_FPGA 2033 help 2034 Watchdog timer found in a number of GE single board computers. 2035 2036config MPC5200_WDT 2037 bool "MPC52xx Watchdog Timer" 2038 depends on PPC_MPC52xx || COMPILE_TEST 2039 help 2040 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2041 2042config 8xxx_WDT 2043 tristate "MPC8xxx Platform Watchdog Timer" 2044 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2045 select WATCHDOG_CORE 2046 help 2047 This driver is for a SoC level watchdog that exists on some 2048 Freescale PowerPC processors. So far this driver supports: 2049 - MPC8xx watchdogs 2050 - MPC83xx watchdogs 2051 - MPC86xx watchdogs 2052 2053 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2054 2055config PIKA_WDT 2056 tristate "PIKA FPGA Watchdog" 2057 depends on WARP || (PPC64 && COMPILE_TEST) 2058 default WARP 2059 help 2060 This enables the watchdog in the PIKA FPGA. Currently used on 2061 the Warp platform. 2062 2063config BOOKE_WDT 2064 tristate "PowerPC Book-E Watchdog Timer" 2065 depends on BOOKE || 4xx 2066 select WATCHDOG_CORE 2067 help 2068 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2069 MPC85xx SOCs and the IBM PowerPC 440. 2070 2071 Please see Documentation/watchdog/watchdog-api.rst for 2072 more information. 2073 2074config BOOKE_WDT_DEFAULT_TIMEOUT 2075 int "PowerPC Book-E Watchdog Timer Default Timeout" 2076 depends on BOOKE_WDT 2077 default 38 if PPC_E500 2078 range 0 63 if PPC_E500 2079 default 3 if !PPC_E500 2080 range 0 3 if !PPC_E500 2081 help 2082 Select the default watchdog timer period to be used by the PowerPC 2083 Book-E watchdog driver. A watchdog "event" occurs when the bit 2084 position represented by this number transitions from zero to one. 2085 2086 For Freescale Book-E processors, this is a number between 0 and 63. 2087 For other Book-E processors, this is a number between 0 and 3. 2088 2089 The value can be overridden by the wdt_period command-line parameter. 2090 2091config MEN_A21_WDT 2092 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2093 select WATCHDOG_CORE 2094 depends on GPIOLIB || COMPILE_TEST 2095 help 2096 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2097 2098 The driver can also be built as a module. If so, the module will be 2099 called mena21_wdt. 2100 2101 If unsure select N here. 2102 2103# PPC64 Architecture 2104 2105config PSERIES_WDT 2106 tristate "POWER Architecture Platform Watchdog Timer" 2107 depends on PPC_PSERIES 2108 select WATCHDOG_CORE 2109 help 2110 Driver for virtual watchdog timers provided by PAPR 2111 hypervisors (e.g. PowerVM, KVM). 2112 2113config WATCHDOG_RTAS 2114 tristate "RTAS watchdog" 2115 depends on PPC_RTAS 2116 help 2117 This driver adds watchdog support for the RTAS watchdog. 2118 2119 To compile this driver as a module, choose M here. The module 2120 will be called wdrtas. 2121 2122# RISC-V Architecture 2123 2124config STARFIVE_WATCHDOG 2125 tristate "StarFive Watchdog support" 2126 depends on ARCH_STARFIVE || COMPILE_TEST 2127 select WATCHDOG_CORE 2128 default ARCH_STARFIVE 2129 help 2130 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2131 SoC. This driver can also be built as a module if choose M. 2132 2133# S390 Architecture 2134 2135config DIAG288_WATCHDOG 2136 tristate "System z diag288 Watchdog" 2137 depends on S390 2138 select WATCHDOG_CORE 2139 help 2140 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2141 provide a virtual watchdog timer to their guest that cause a 2142 user define Control Program command to be executed after a 2143 timeout. 2144 LPAR provides a very similar interface. This driver handles 2145 both. 2146 2147 To compile this driver as a module, choose M here. The module 2148 will be called diag288_wdt. 2149 2150# SUPERH (sh + sh64) Architecture 2151 2152config SH_WDT 2153 tristate "SuperH Watchdog" 2154 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2155 select WATCHDOG_CORE 2156 help 2157 This driver adds watchdog support for the integrated watchdog in the 2158 SuperH processors. If you have one of these processors and wish 2159 to have watchdog support enabled, say Y, otherwise say N. 2160 2161 As a side note, saying Y here will automatically boost HZ to 1000 2162 so that the timer has a chance to clear the overflow counter. On 2163 slower systems (such as the SH-2 and SH-3) this will likely yield 2164 some performance issues. As such, the WDT should be avoided here 2165 unless it is absolutely necessary. 2166 2167 To compile this driver as a module, choose M here: the 2168 module will be called shwdt. 2169 2170# SPARC Architecture 2171 2172# SPARC64 Architecture 2173 2174config WATCHDOG_CP1XXX 2175 tristate "CP1XXX Hardware Watchdog support" 2176 depends on SPARC64 && PCI 2177 help 2178 This is the driver for the hardware watchdog timers present on 2179 Sun Microsystems CompactPCI models CP1400 and CP1500. 2180 2181 To compile this driver as a module, choose M here: the 2182 module will be called cpwatchdog. 2183 2184 If you do not have a CompactPCI model CP1400 or CP1500, or 2185 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2186 you should say N to this option. 2187 2188config WATCHDOG_RIO 2189 tristate "RIO Hardware Watchdog support" 2190 depends on SPARC64 && PCI 2191 help 2192 Say Y here to support the hardware watchdog capability on Sun RIO 2193 machines. The watchdog timeout period is normally one minute but 2194 can be changed with a boot-time parameter. 2195 2196config WATCHDOG_SUN4V 2197 tristate "Sun4v Watchdog support" 2198 select WATCHDOG_CORE 2199 depends on SPARC64 2200 help 2201 Say Y here to support the hypervisor watchdog capability embedded 2202 in the SPARC sun4v architecture. 2203 2204 To compile this driver as a module, choose M here. The module will 2205 be called sun4v_wdt. 2206 2207# XTENSA Architecture 2208 2209# Xen Architecture 2210 2211config XEN_WDT 2212 tristate "Xen Watchdog support" 2213 depends on XEN 2214 select WATCHDOG_CORE 2215 help 2216 Say Y here to support the hypervisor watchdog capability provided 2217 by Xen 4.0 and newer. The watchdog timeout period is normally one 2218 minute but can be changed with a boot-time parameter. 2219 2220config UML_WATCHDOG 2221 tristate "UML watchdog" 2222 depends on UML || COMPILE_TEST 2223 2224# 2225# ISA-based Watchdog Cards 2226# 2227 2228comment "ISA-based Watchdog Cards" 2229 depends on ISA 2230 2231config PCWATCHDOG 2232 tristate "Berkshire Products ISA-PC Watchdog" 2233 depends on ISA 2234 help 2235 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2236 This card simply watches your kernel to make sure it doesn't freeze, 2237 and if it does, it reboots your computer after a certain amount of 2238 time. This driver is like the WDT501 driver but for different 2239 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2240 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2241 2242 To compile this driver as a module, choose M here: the 2243 module will be called pcwd. 2244 2245 Most people will say N. 2246 2247config MIXCOMWD 2248 tristate "Mixcom Watchdog" 2249 depends on ISA 2250 help 2251 This is a driver for the Mixcom hardware watchdog cards. This 2252 watchdog simply watches your kernel to make sure it doesn't freeze, 2253 and if it does, it reboots your computer after a certain amount of 2254 time. 2255 2256 To compile this driver as a module, choose M here: the 2257 module will be called mixcomwd. 2258 2259 Most people will say N. 2260 2261config WDT 2262 tristate "WDT Watchdog timer" 2263 depends on ISA 2264 help 2265 If you have a WDT500P or WDT501P watchdog board, say Y here, 2266 otherwise N. It is not possible to probe for this board, which means 2267 that you have to inform the kernel about the IO port and IRQ that 2268 is needed (you can do this via the io and irq parameters) 2269 2270 To compile this driver as a module, choose M here: the 2271 module will be called wdt. 2272 2273# 2274# PCI-based Watchdog Cards 2275# 2276 2277comment "PCI-based Watchdog Cards" 2278 depends on PCI 2279 2280config PCIPCWATCHDOG 2281 tristate "Berkshire Products PCI-PC Watchdog" 2282 depends on PCI && HAS_IOPORT 2283 help 2284 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2285 This card simply watches your kernel to make sure it doesn't freeze, 2286 and if it does, it reboots your computer after a certain amount of 2287 time. The card can also monitor the internal temperature of the PC. 2288 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2289 2290 To compile this driver as a module, choose M here: the 2291 module will be called pcwd_pci. 2292 2293 Most people will say N. 2294 2295config WDTPCI 2296 tristate "PCI-WDT500/501 Watchdog timer" 2297 depends on PCI && HAS_IOPORT 2298 help 2299 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2300 2301 If you have a PCI-WDT501 watchdog board then you can enable the 2302 temperature sensor by setting the type parameter to 501. 2303 2304 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2305 can do this via the tachometer parameter. Only do this if you have a 2306 fan tachometer actually set up. 2307 2308 To compile this driver as a module, choose M here: the 2309 module will be called wdt_pci. 2310 2311# 2312# USB-based Watchdog Cards 2313# 2314 2315comment "USB-based Watchdog Cards" 2316 depends on USB 2317 2318config USBPCWATCHDOG 2319 tristate "Berkshire Products USB-PC Watchdog" 2320 depends on USB 2321 help 2322 This is the driver for the Berkshire Products USB-PC Watchdog card. 2323 This card simply watches your kernel to make sure it doesn't freeze, 2324 and if it does, it reboots your computer after a certain amount of 2325 time. The card can also monitor the internal temperature of the PC. 2326 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2327 2328 To compile this driver as a module, choose M here: the 2329 module will be called pcwd_usb. 2330 2331 Most people will say N. 2332 2333config KEEMBAY_WATCHDOG 2334 tristate "Intel Keem Bay SoC non-secure watchdog" 2335 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2336 select WATCHDOG_CORE 2337 help 2338 This option enable support for an In-secure watchdog timer driver for 2339 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2340 count unit. An interrupt will be triggered, when the count crosses 2341 the threshold configured in the register. 2342 2343 To compile this driver as a module, choose M here: the 2344 module will be called keembay_wdt. 2345 2346endif # WATCHDOG 2347