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_WWDT 973 tristate "Renesas Window WWDT Watchdog" 974 depends on ARCH_RENESAS || COMPILE_TEST 975 select WATCHDOG_CORE 976 help 977 This driver adds watchdog support for a window timer found in some 978 Renesas R-Car Gen3 and later SoCs. 979 980config RENESAS_RZAWDT 981 tristate "Renesas RZ/A WDT 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/A SoCs. These watchdogs can be used to reset a system. 987 988config RENESAS_RZN1WDT 989 tristate "Renesas RZ/N1 watchdog" 990 depends on ARCH_RENESAS || COMPILE_TEST 991 select WATCHDOG_CORE 992 help 993 This driver adds watchdog support for the integrated watchdogs in the 994 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 995 996config RENESAS_RZG2LWDT 997 tristate "Renesas RZ/G2L WDT Watchdog" 998 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 999 depends on PM || COMPILE_TEST 1000 select WATCHDOG_CORE 1001 help 1002 This driver adds watchdog support for the integrated watchdogs in the 1003 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 1004 1005config RENESAS_RZV2HWDT 1006 tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog" 1007 depends on ARCH_RENESAS || COMPILE_TEST 1008 depends on PM || COMPILE_TEST 1009 select WATCHDOG_CORE 1010 help 1011 This driver adds watchdog support for the integrated watchdogs in the 1012 Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a 1013 system. 1014 1015config ASPEED_WATCHDOG 1016 tristate "Aspeed BMC watchdog support" 1017 depends on ARCH_ASPEED || COMPILE_TEST 1018 select WATCHDOG_CORE 1019 help 1020 Say Y here to include support for the watchdog timer 1021 in Aspeed BMC SoCs. 1022 1023 This driver is required to reboot the SoC. 1024 1025 To compile this driver as a module, choose M here: the 1026 module will be called aspeed_wdt. 1027 1028config STM32_WATCHDOG 1029 tristate "STM32 Independent WatchDoG (IWDG) support" 1030 depends on ARCH_STM32 || COMPILE_TEST 1031 select WATCHDOG_CORE 1032 default ARCH_STM32 1033 help 1034 Say Y here to include support for the watchdog timer 1035 in stm32 SoCs. 1036 1037 To compile this driver as a module, choose M here: the 1038 module will be called stm32_iwdg. 1039 1040config STPMIC1_WATCHDOG 1041 tristate "STPMIC1 PMIC watchdog support" 1042 depends on MFD_STPMIC1 1043 select WATCHDOG_CORE 1044 help 1045 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1046 If the watchdog timer expires, stpmic1 will shut down all its power 1047 supplies. 1048 1049 To compile this driver as a module, choose M here: the 1050 module will be called spmic1_wdt. 1051 1052config UNIPHIER_WATCHDOG 1053 tristate "UniPhier watchdog support" 1054 depends on ARCH_UNIPHIER || COMPILE_TEST 1055 depends on OF && MFD_SYSCON 1056 select WATCHDOG_CORE 1057 help 1058 Say Y here to include support watchdog timer embedded 1059 into the UniPhier system. 1060 1061 To compile this driver as a module, choose M here: the 1062 module will be called uniphier_wdt. 1063 1064config RTD119X_WATCHDOG 1065 bool "Realtek RTD119x/RTD129x watchdog support" 1066 depends on ARCH_REALTEK || COMPILE_TEST 1067 depends on OF 1068 select WATCHDOG_CORE 1069 default ARCH_REALTEK 1070 help 1071 Say Y here to include support for the watchdog timer in 1072 Realtek RTD1295 SoCs. 1073 1074config REALTEK_OTTO_WDT 1075 tristate "Realtek Otto MIPS watchdog support" 1076 depends on MACH_REALTEK_RTL || COMPILE_TEST 1077 depends on COMMON_CLK 1078 select WATCHDOG_CORE 1079 default MACH_REALTEK_RTL 1080 help 1081 Say Y here to include support for the watchdog timer on Realtek 1082 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1083 notifications and system reset on timeout. 1084 1085 When built as a module this will be called realtek_otto_wdt. 1086 1087config SPRD_WATCHDOG 1088 tristate "Spreadtrum watchdog support" 1089 depends on ARCH_SPRD || COMPILE_TEST 1090 select WATCHDOG_CORE 1091 help 1092 Say Y here to include watchdog timer supported 1093 by Spreadtrum system. 1094 1095config PM8916_WATCHDOG 1096 tristate "QCOM PM8916 pmic watchdog" 1097 depends on OF && MFD_SPMI_PMIC 1098 select WATCHDOG_CORE 1099 help 1100 Say Y here to include support watchdog timer embedded into the 1101 pm8916 module. 1102 1103config VISCONTI_WATCHDOG 1104 tristate "Toshiba Visconti series watchdog support" 1105 depends on ARCH_VISCONTI || COMPILE_TEST 1106 select WATCHDOG_CORE 1107 help 1108 Say Y here to include support for the watchdog timer in Toshiba 1109 Visconti SoCs. 1110 1111config MSC313E_WATCHDOG 1112 tristate "MStar MSC313e watchdog" 1113 depends on ARCH_MSTARV7 || COMPILE_TEST 1114 select WATCHDOG_CORE 1115 help 1116 Say Y here to include support for the Watchdog timer embedded 1117 into MStar MSC313e chips. This will reboot your system when the 1118 timeout is reached. 1119 1120 To compile this driver as a module, choose M here: the 1121 module will be called msc313e_wdt. 1122 1123config APPLE_WATCHDOG 1124 tristate "Apple SoC watchdog" 1125 depends on ARCH_APPLE || COMPILE_TEST 1126 select WATCHDOG_CORE 1127 help 1128 Say Y here to include support for the Watchdog found in Apple 1129 SoCs such as the M1. Next to the common watchdog features this 1130 driver is also required in order to reboot these SoCs. 1131 1132 To compile this driver as a module, choose M here: the 1133 module will be called apple_wdt. 1134 1135config SUNPLUS_WATCHDOG 1136 tristate "Sunplus watchdog support" 1137 depends on ARCH_SUNPLUS || COMPILE_TEST 1138 select WATCHDOG_CORE 1139 help 1140 Say Y here to include support for the watchdog timer 1141 in Sunplus SoCs. 1142 1143 To compile this driver as a module, choose M here: the 1144 module will be called sunplus_wdt. 1145 1146# X86 (i386 + ia64 + x86_64) Architecture 1147 1148config ACQUIRE_WDT 1149 tristate "Acquire SBC Watchdog Timer" 1150 depends on X86 1151 help 1152 This is the driver for the hardware watchdog on Single Board 1153 Computers produced by Acquire Inc (and others). This watchdog 1154 simply watches your kernel to make sure it doesn't freeze, and if 1155 it does, it reboots your computer after a certain amount of time. 1156 1157 To compile this driver as a module, choose M here: the 1158 module will be called acquirewdt. 1159 1160 Most people will say N. 1161 1162config ADVANTECH_WDT 1163 tristate "Advantech SBC Watchdog Timer" 1164 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1165 help 1166 If you are configuring a Linux kernel for the Advantech single-board 1167 computer, say `Y' here to support its built-in watchdog timer 1168 feature. More information can be found at 1169 <https://www.advantech.com.tw/products/> 1170 1171config ADVANTECH_EC_WDT 1172 tristate "Advantech Embedded Controller Watchdog Timer" 1173 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1174 select ISA_BUS_API 1175 select WATCHDOG_CORE 1176 help 1177 This driver supports Advantech products with ITE based Embedded Controller. 1178 It does not support Advantech products with other ECs or without EC. 1179 1180config ALIM1535_WDT 1181 tristate "ALi M1535 PMU Watchdog Timer" 1182 depends on (X86 || COMPILE_TEST) && PCI 1183 help 1184 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1185 1186 To compile this driver as a module, choose M here: the 1187 module will be called alim1535_wdt. 1188 1189 Most people will say N. 1190 1191config ALIM7101_WDT 1192 tristate "ALi M7101 PMU Computer Watchdog" 1193 depends on PCI 1194 help 1195 This is the driver for the hardware watchdog on the ALi M7101 PMU 1196 as used in the x86 Cobalt servers and also found in some 1197 SPARC Netra servers too. 1198 1199 To compile this driver as a module, choose M here: the 1200 module will be called alim7101_wdt. 1201 1202 Most people will say N. 1203 1204config CGBC_WDT 1205 tristate "Congatec Board Controller Watchdog Timer" 1206 depends on MFD_CGBC 1207 select WATCHDOG_CORE 1208 help 1209 Enables watchdog timer support for the Congatec Board Controller. 1210 1211 This driver can also be built as a module. If so, the module will be 1212 called cgbc_wdt. 1213 1214config EBC_C384_WDT 1215 tristate "WinSystems EBC-C384 Watchdog Timer" 1216 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1217 select ISA_BUS_API 1218 select WATCHDOG_CORE 1219 help 1220 Enables watchdog timer support for the watchdog timer on the 1221 WinSystems EBC-C384 motherboard. The timeout may be configured via 1222 the timeout module parameter. 1223 1224config EXAR_WDT 1225 tristate "Exar Watchdog Timer" 1226 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1227 select WATCHDOG_CORE 1228 help 1229 Enables watchdog timer support for the watchdog timer present 1230 in some Exar/MaxLinear UART chips like the XR28V38x. 1231 1232 To compile this driver as a module, choose M here: the 1233 module will be called exar_wdt. 1234 1235config F71808E_WDT 1236 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1237 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1238 select WATCHDOG_CORE 1239 help 1240 This is the driver for the hardware watchdog on the Fintek F71808E, 1241 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1242 F81866 Super I/O controllers. 1243 1244 You can compile this driver directly into the kernel, or use 1245 it as a module. The module will be called f71808e_wdt. 1246 1247config SP5100_TCO 1248 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1249 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1250 select WATCHDOG_CORE 1251 help 1252 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1253 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1254 the machine after its expiration. The expiration time can be 1255 configured with the "heartbeat" parameter. 1256 1257 To compile this driver as a module, choose M here: the 1258 module will be called sp5100_tco. 1259 1260config GEODE_WDT 1261 tristate "AMD Geode CS5535/CS5536 Watchdog" 1262 depends on CS5535_MFGPT 1263 help 1264 This driver enables a watchdog capability built into the 1265 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1266 processors. This watchdog watches your kernel to make sure 1267 it doesn't freeze, and if it does, it reboots your computer after 1268 a certain amount of time. 1269 1270 You can compile this driver directly into the kernel, or use 1271 it as a module. The module will be called geodewdt. 1272 1273config SC520_WDT 1274 tristate "AMD Elan SC520 processor Watchdog" 1275 depends on MELAN || COMPILE_TEST 1276 help 1277 This is the driver for the hardware watchdog built in to the 1278 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1279 This watchdog simply watches your kernel to make sure it doesn't 1280 freeze, and if it does, it reboots your computer after a certain 1281 amount of time. 1282 1283 You can compile this driver directly into the kernel, or use 1284 it as a module. The module will be called sc520_wdt. 1285 1286config SBC_FITPC2_WATCHDOG 1287 tristate "Compulab SBC-FITPC2 watchdog" 1288 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1289 help 1290 This is the driver for the built-in watchdog timer on the fit-PC2, 1291 fit-PC2i, CM-iAM single-board computers made by Compulab. 1292 1293 It's possible to enable the watchdog timer either from BIOS (F2) or 1294 from booted Linux. 1295 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1296 operational range. 1297 1298 Entering BIOS setup temporarily disables watchdog operation regardless 1299 of current state, so system will not be restarted while user is in 1300 BIOS setup. 1301 1302 Once the watchdog is enabled the system will be restarted every 1303 "Watchdog Timer Value" period, so to prevent it user can restart or 1304 disable the watchdog. 1305 1306 To compile this driver as a module, choose M here: the 1307 module will be called sbc_fitpc2_wdt. 1308 1309 Most people will say N. 1310 1311config EUROTECH_WDT 1312 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1313 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1314 help 1315 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1316 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1317 information are at <http://www.eurotech.it/>. 1318 1319config IB700_WDT 1320 tristate "IB700 SBC Watchdog Timer" 1321 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1322 help 1323 This is the driver for the hardware watchdog on the IB700 Single 1324 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1325 watchdog simply watches your kernel to make sure it doesn't freeze, 1326 and if it does, it reboots your computer after a certain amount of time. 1327 1328 This driver is like the WDT501 driver but for slightly different 1329 hardware. 1330 1331 To compile this driver as a module, choose M here: the 1332 module will be called ib700wdt. 1333 1334 Most people will say N. 1335 1336config IBMASR 1337 tristate "IBM Automatic Server Restart" 1338 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1339 help 1340 This is the driver for the IBM Automatic Server Restart watchdog 1341 timer built-in into some eServer xSeries machines. 1342 1343 To compile this driver as a module, choose M here: the 1344 module will be called ibmasr. 1345 1346config WAFER_WDT 1347 tristate "ICP Single Board Computer Watchdog Timer" 1348 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1349 help 1350 This is a driver for the hardware watchdog on the ICP Single 1351 Board Computer. This driver is working on (at least) the following 1352 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1353 1354 To compile this driver as a module, choose M here: the 1355 module will be called wafer5823wdt. 1356 1357config I6300ESB_WDT 1358 tristate "Intel 6300ESB Timer/Watchdog" 1359 depends on PCI 1360 select WATCHDOG_CORE 1361 help 1362 Hardware driver for the watchdog timer built into the Intel 1363 6300ESB controller hub. 1364 1365 To compile this driver as a module, choose M here: the 1366 module will be called i6300esb. 1367 1368config IE6XX_WDT 1369 tristate "Intel Atom E6xx Watchdog" 1370 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1371 select WATCHDOG_CORE 1372 select MFD_CORE 1373 select LPC_SCH 1374 help 1375 Hardware driver for the watchdog timer built into the Intel 1376 Atom E6XX (TunnelCreek) processor. 1377 1378 To compile this driver as a module, choose M here: the 1379 module will be called ie6xx_wdt. 1380 1381config INTEL_MID_WATCHDOG 1382 tristate "Intel MID Watchdog Timer" 1383 depends on X86_INTEL_MID 1384 select WATCHDOG_CORE 1385 help 1386 Watchdog timer driver built into the Intel SCU for Intel MID 1387 Platforms. 1388 1389 This driver currently supports only the watchdog evolution 1390 implementation in SCU, available for Merrifield generation. 1391 1392 To compile this driver as a module, choose M here. 1393 1394config INTEL_OC_WATCHDOG 1395 tristate "Intel OC Watchdog" 1396 depends on (X86 || COMPILE_TEST) && ACPI && HAS_IOPORT 1397 select WATCHDOG_CORE 1398 help 1399 Hardware driver for Intel Over-Clocking watchdog present in 1400 Platform Controller Hub (PCH) chipsets. 1401 1402 To compile this driver as a module, choose M here: the 1403 module will be called intel_oc_wdt. 1404 1405config ITCO_WDT 1406 tristate "Intel TCO Timer/Watchdog" 1407 depends on X86 && PCI 1408 select WATCHDOG_CORE 1409 depends on I2C || I2C=n 1410 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1411 depends on HAS_IOPORT # for I2C_I801 1412 select LPC_ICH if !EXPERT 1413 select I2C_I801 if !EXPERT && I2C 1414 help 1415 Hardware driver for the intel TCO timer based watchdog devices. 1416 These drivers are included in the Intel 82801 I/O Controller 1417 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1418 controller hub. 1419 1420 The TCO (Total Cost of Ownership) timer is a watchdog timer 1421 that will reboot the machine after its second expiration. The 1422 expiration time can be configured with the "heartbeat" parameter. 1423 1424 On some motherboards the driver may fail to reset the chipset's 1425 NO_REBOOT flag which prevents the watchdog from rebooting the 1426 machine. If this is the case you will get a kernel message like 1427 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1428 1429 To compile this driver as a module, choose M here: the 1430 module will be called iTCO_wdt. 1431 1432config ITCO_VENDOR_SUPPORT 1433 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1434 depends on ITCO_WDT 1435 help 1436 Add vendor specific support to the intel TCO timer based watchdog 1437 devices. At this moment we only have additional support for some 1438 SuperMicro Inc. motherboards. 1439 1440config IT8712F_WDT 1441 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1442 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1443 help 1444 This is the driver for the built-in watchdog timer on the IT8712F 1445 Super I/0 chipset used on many motherboards. 1446 1447 If the driver does not work, then make sure that the game port in 1448 the BIOS is enabled. 1449 1450 To compile this driver as a module, choose M here: the 1451 module will be called it8712f_wdt. 1452 1453config IT87_WDT 1454 tristate "IT87 Watchdog Timer" 1455 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1456 select WATCHDOG_CORE 1457 help 1458 This is the driver for the hardware watchdog on the ITE IT8607, 1459 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1460 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1461 IT8783 Super I/O chips. 1462 1463 This watchdog simply watches your kernel to make sure it doesn't 1464 freeze, and if it does, it reboots your computer after a certain 1465 amount of time. 1466 1467 To compile this driver as a module, choose M here: the module will 1468 be called it87_wdt. 1469 1470config HP_WATCHDOG 1471 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1472 select WATCHDOG_CORE 1473 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1474 help 1475 A software monitoring watchdog and NMI handling driver. This driver 1476 will detect lockups and provide a stack trace. This is a driver that 1477 will only load on an HP ProLiant system with a minimum of iLO2 support. 1478 To compile this driver as a module, choose M here: the module will be 1479 called hpwdt. 1480 1481config HPWDT_NMI_DECODING 1482 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1483 depends on X86 && HP_WATCHDOG 1484 default y 1485 help 1486 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1487 "Generate NMI to System" virtual button. When an NMI is claimed 1488 by the driver, panic is called. 1489 1490config KEMPLD_WDT 1491 tristate "Kontron COM Watchdog Timer" 1492 depends on MFD_KEMPLD 1493 select WATCHDOG_CORE 1494 help 1495 Support for the PLD watchdog on some Kontron ETX and COMexpress 1496 (ETXexpress) modules 1497 1498 This driver can also be built as a module. If so, the module will be 1499 called kempld_wdt. 1500 1501config SC1200_WDT 1502 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1503 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1504 help 1505 This is a driver for National Semiconductor PC87307/PC97307 hardware 1506 watchdog cards as found on the SC1200. This watchdog is mainly used 1507 for power management purposes and can be used to power down the device 1508 during inactivity periods (includes interrupt activity monitoring). 1509 1510 To compile this driver as a module, choose M here: the 1511 module will be called sc1200wdt. 1512 1513 Most people will say N. 1514 1515config SCx200_WDT 1516 tristate "National Semiconductor SCx200 Watchdog" 1517 depends on SCx200 && PCI 1518 help 1519 Enable the built-in watchdog timer support on the National 1520 Semiconductor SCx200 processors. 1521 1522 If compiled as a module, it will be called scx200_wdt. 1523 1524config PC87413_WDT 1525 tristate "NS PC87413 watchdog" 1526 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1527 help 1528 This is the driver for the hardware watchdog on the PC87413 chipset 1529 This watchdog simply watches your kernel to make sure it doesn't 1530 freeze, and if it does, it reboots your computer after a certain 1531 amount of time. 1532 1533 To compile this driver as a module, choose M here: the 1534 module will be called pc87413_wdt. 1535 1536 Most people will say N. 1537 1538config NV_TCO 1539 tristate "nVidia TCO Timer/Watchdog" 1540 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1541 help 1542 Hardware driver for the TCO timer built into the nVidia Hub family 1543 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1544 watchdog timer that will reboot the machine after its second 1545 expiration. The expiration time can be configured with the 1546 "heartbeat" parameter. 1547 1548 On some motherboards the driver may fail to reset the chipset's 1549 NO_REBOOT flag which prevents the watchdog from rebooting the 1550 machine. If this is the case you will get a kernel message like 1551 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1552 1553 To compile this driver as a module, choose M here: the 1554 module will be called nv_tco. 1555 1556config RDC321X_WDT 1557 tristate "RDC R-321x SoC watchdog" 1558 depends on X86_RDC321X || COMPILE_TEST 1559 depends on PCI 1560 help 1561 This is the driver for the built in hardware watchdog 1562 in the RDC R-321x SoC. 1563 1564 To compile this driver as a module, choose M here: the 1565 module will be called rdc321x_wdt. 1566 1567config 60XX_WDT 1568 tristate "SBC-60XX Watchdog Timer" 1569 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1570 help 1571 This driver can be used with the watchdog timer found on some 1572 single board computers, namely the 6010 PII based computer. 1573 It may well work with other cards. It reads port 0x443 to enable 1574 and re-set the watchdog timer, and reads port 0x45 to disable 1575 the watchdog. If you have a card that behave in similar ways, 1576 you can probably make this driver work with your card as well. 1577 1578 You can compile this driver directly into the kernel, or use 1579 it as a module. The module will be called sbc60xxwdt. 1580 1581config SBC8360_WDT 1582 tristate "SBC8360 Watchdog Timer" 1583 depends on X86_32 && HAS_IOPORT 1584 help 1585 1586 This is the driver for the hardware watchdog on the SBC8360 Single 1587 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1588 1589 To compile this driver as a module, choose M here: the 1590 module will be called sbc8360. 1591 1592 Most people will say N. 1593 1594config SBC7240_WDT 1595 tristate "SBC Nano 7240 Watchdog Timer" 1596 depends on X86_32 && HAS_IOPORT 1597 help 1598 This is the driver for the hardware watchdog found on the IEI 1599 single board computers EPIC Nano 7240 (and likely others). This 1600 watchdog simply watches your kernel to make sure it doesn't freeze, 1601 and if it does, it reboots your computer after a certain amount of 1602 time. 1603 1604 To compile this driver as a module, choose M here: the 1605 module will be called sbc7240_wdt. 1606 1607config SMSC_SCH311X_WDT 1608 tristate "SMSC SCH311X Watchdog Timer" 1609 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1610 help 1611 This is the driver for the hardware watchdog timer on the 1612 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1613 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1614 serial ports). 1615 1616 To compile this driver as a module, choose M here: the 1617 module will be called sch311x_wdt. 1618 1619config SMSC37B787_WDT 1620 tristate "Winbond SMsC37B787 Watchdog Timer" 1621 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1622 help 1623 This is the driver for the hardware watchdog component on the 1624 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1625 from Vision Systems and maybe others. 1626 1627 This watchdog simply watches your kernel to make sure it doesn't 1628 freeze, and if it does, it reboots your computer after a certain 1629 amount of time. 1630 1631 Usually a userspace daemon will notify the kernel WDT driver that 1632 userspace is still alive, at regular intervals. 1633 1634 To compile this driver as a module, choose M here: the 1635 module will be called smsc37b787_wdt. 1636 1637 Most people will say N. 1638 1639config TQMX86_WDT 1640 tristate "TQ-Systems TQMX86 Watchdog Timer" 1641 depends on X86 || COMPILE_TEST 1642 select WATCHDOG_CORE 1643 help 1644 This is the driver for the hardware watchdog timer in the TQMX86 IO 1645 controller found on some of their ComExpress Modules. 1646 1647 To compile this driver as a module, choose M here; the module 1648 will be called tqmx86_wdt. 1649 1650 Most people will say N. 1651 1652config VIA_WDT 1653 tristate "VIA Watchdog Timer" 1654 depends on (X86 || COMPILE_TEST) && PCI 1655 select WATCHDOG_CORE 1656 help 1657 This is the driver for the hardware watchdog timer on VIA 1658 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1659 1660 To compile this driver as a module, choose M here; the module 1661 will be called via_wdt. 1662 1663 Most people will say N. 1664 1665config W83627HF_WDT 1666 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1667 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1668 select WATCHDOG_CORE 1669 help 1670 This is the driver for the hardware watchdog on the following 1671 Super I/O chips. 1672 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1673 W83637HF 1674 W83667HG/HG-B 1675 W83687THF 1676 W83697HF 1677 W83697UG 1678 NCT6775 1679 NCT6776 1680 NCT6779 1681 NCT6791 1682 NCT6792 1683 NCT6102D/04D/06D 1684 NCT6116D 1685 1686 This watchdog simply watches your kernel to make sure it doesn't 1687 freeze, and if it does, it reboots your computer after a certain 1688 amount of time. 1689 1690 To compile this driver as a module, choose M here: the 1691 module will be called w83627hf_wdt. 1692 1693 Most people will say N. 1694 1695config W83877F_WDT 1696 tristate "W83877F (EMACS) Watchdog Timer" 1697 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1698 help 1699 This is the driver for the hardware watchdog on the W83877F chipset 1700 as used in EMACS PC-104 motherboards (and likely others). This 1701 watchdog simply watches your kernel to make sure it doesn't freeze, 1702 and if it does, it reboots your computer after a certain amount of 1703 time. 1704 1705 To compile this driver as a module, choose M here: the 1706 module will be called w83877f_wdt. 1707 1708 Most people will say N. 1709 1710config W83977F_WDT 1711 tristate "W83977F (PCM-5335) Watchdog Timer" 1712 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1713 help 1714 This is the driver for the hardware watchdog on the W83977F I/O chip 1715 as used in AAEON's PCM-5335 SBC (and likely others). This 1716 watchdog simply watches your kernel to make sure it doesn't freeze, 1717 and if it does, it reboots your computer after a certain amount of 1718 time. 1719 1720 To compile this driver as a module, choose M here: the 1721 module will be called w83977f_wdt. 1722 1723config MACHZ_WDT 1724 tristate "ZF MachZ Watchdog" 1725 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1726 help 1727 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1728 N. This is the driver for the watchdog timer built-in on that 1729 processor using ZF-Logic interface. This watchdog simply watches 1730 your kernel to make sure it doesn't freeze, and if it does, it 1731 reboots your computer after a certain amount of time. 1732 1733 To compile this driver as a module, choose M here: the 1734 module will be called machzwd. 1735 1736config SBC_EPX_C3_WATCHDOG 1737 tristate "Winsystems SBC EPX-C3 watchdog" 1738 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1739 help 1740 This is the driver for the built-in watchdog timer on the EPX-C3 1741 Single-board computer made by Winsystems, Inc. 1742 1743 *Note*: This hardware watchdog is not probeable and thus there 1744 is no way to know if writing to its IO address will corrupt 1745 your system or have any real effect. The only way to be sure 1746 that this driver does what you want is to make sure you 1747 are running it on an EPX-C3 from Winsystems with the watchdog 1748 timer at IO address 0x1ee and 0x1ef. It will write to both those 1749 IO ports. Basically, the assumption is made that if you compile 1750 this driver into your kernel and/or load it as a module, that you 1751 know what you are doing and that you are in fact running on an 1752 EPX-C3 board! 1753 1754 To compile this driver as a module, choose M here: the 1755 module will be called sbc_epx_c3. 1756 1757config INTEL_MEI_WDT 1758 tristate "Intel MEI iAMT Watchdog" 1759 depends on INTEL_MEI && X86 1760 select WATCHDOG_CORE 1761 help 1762 A device driver for the Intel MEI iAMT watchdog. 1763 1764 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1765 Whenever the OS hangs or crashes, iAMT will send an event 1766 to any subscriber to this event. The watchdog doesn't reset the 1767 the platform. 1768 1769 To compile this driver as a module, choose M here: 1770 the module will be called mei_wdt. 1771 1772config NI903X_WDT 1773 tristate "NI 903x/913x Watchdog" 1774 depends on X86 && ACPI 1775 select WATCHDOG_CORE 1776 help 1777 This is the driver for the watchdog timer on the National Instruments 1778 903x/913x real-time controllers. 1779 1780 To compile this driver as a module, choose M here: the module will be 1781 called ni903x_wdt. 1782 1783config NIC7018_WDT 1784 tristate "NIC7018 Watchdog" 1785 depends on HAS_IOPORT 1786 depends on ACPI || COMPILE_TEST 1787 select WATCHDOG_CORE 1788 help 1789 Support for National Instruments NIC7018 Watchdog. 1790 1791 To compile this driver as a module, choose M here: the module will be 1792 called nic7018_wdt. 1793 1794config SIEMENS_SIMATIC_IPC_WDT 1795 tristate "Siemens Simatic IPC Watchdog" 1796 depends on SIEMENS_SIMATIC_IPC && PCI 1797 default y 1798 select WATCHDOG_CORE 1799 select P2SB if X86 1800 help 1801 This driver adds support for several watchdogs found in Industrial 1802 PCs from Siemens. 1803 1804 To compile this driver as a module, choose M here: the module will be 1805 called simatic-ipc-wdt. 1806 1807# M68K Architecture 1808 1809config M54xx_WATCHDOG 1810 tristate "MCF54xx watchdog support" 1811 depends on M548x 1812 help 1813 To compile this driver as a module, choose M here: the 1814 module will be called m54xx_wdt. 1815 1816# MicroBlaze Architecture 1817 1818# MIPS Architecture 1819 1820config ATH79_WDT 1821 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1822 depends on ATH79 || (ARM && COMPILE_TEST) 1823 help 1824 Hardware driver for the built-in watchdog timer on the Atheros 1825 AR71XX/AR724X/AR913X SoCs. 1826 1827config BCM47XX_WDT 1828 tristate "Broadcom BCM47xx Watchdog Timer" 1829 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1830 select WATCHDOG_CORE 1831 help 1832 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1833 1834config RC32434_WDT 1835 tristate "IDT RC32434 SoC Watchdog Timer" 1836 depends on MIKROTIK_RB532 1837 help 1838 Hardware driver for the IDT RC32434 SoC built-in 1839 watchdog timer. 1840 1841 To compile this driver as a module, choose M here: the 1842 module will be called rc32434_wdt. 1843 1844config INDYDOG 1845 tristate "Indy/I2 Hardware Watchdog" 1846 depends on SGI_HAS_INDYDOG 1847 help 1848 Hardware driver for the Indy's/I2's watchdog. This is a 1849 watchdog timer that will reboot the machine after a 60 second 1850 timer expired and no process has written to /dev/watchdog during 1851 that time. 1852 1853config JZ4740_WDT 1854 tristate "Ingenic jz4740 SoC hardware watchdog" 1855 depends on MIPS || COMPILE_TEST 1856 depends on COMMON_CLK 1857 select WATCHDOG_CORE 1858 select MFD_SYSCON 1859 help 1860 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1861 1862config WDT_MTX1 1863 tristate "MTX-1 Hardware Watchdog" 1864 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1865 help 1866 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1867 will reboot the machine after a 100 seconds timer expired. 1868 1869config SIBYTE_WDOG 1870 tristate "Sibyte SoC hardware watchdog" 1871 depends on CPU_SB1 1872 help 1873 Watchdog driver for the built in watchdog hardware in Sibyte 1874 SoC processors. There are apparently two watchdog timers 1875 on such processors; this driver supports only the first one, 1876 because currently Linux only supports exporting one watchdog 1877 to userspace. 1878 1879 To compile this driver as a loadable module, choose M here. 1880 The module will be called sb_wdog. 1881 1882config TXX9_WDT 1883 tristate "Toshiba TXx9 Watchdog Timer" 1884 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1885 select WATCHDOG_CORE 1886 help 1887 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1888 1889config OCTEON_WDT 1890 tristate "Cavium OCTEON SOC family Watchdog Timer" 1891 depends on CAVIUM_OCTEON_SOC 1892 default y 1893 select WATCHDOG_CORE 1894 select EXPORT_UASM if OCTEON_WDT = m 1895 help 1896 Hardware driver for OCTEON's on chip watchdog timer. 1897 Enables the watchdog for all cores running Linux. It 1898 installs a NMI handler and pokes the watchdog based on an 1899 interrupt. On first expiration of the watchdog, the 1900 interrupt handler pokes it. The second expiration causes an 1901 NMI that prints a message. The third expiration causes a 1902 global soft reset. 1903 1904 When userspace has /dev/watchdog open, no poking is done 1905 from the first interrupt, it is then only poked when the 1906 device is written. 1907 1908config MARVELL_GTI_WDT 1909 tristate "Marvell GTI Watchdog driver" 1910 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1911 default ARCH_THUNDER 1912 select WATCHDOG_CORE 1913 help 1914 Marvell GTI hardware supports watchdog timer. First timeout 1915 works as watchdog pretimeout and installed interrupt handler 1916 will be called on first timeout. Hardware can generate interrupt 1917 to SCP on second timeout but it is not enabled, so second 1918 timeout is ignored. If device poke does not happen then system 1919 will reboot on third timeout. 1920 1921config BCM2835_WDT 1922 tristate "Broadcom BCM2835 hardware watchdog" 1923 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1924 select WATCHDOG_CORE 1925 help 1926 Watchdog driver for the built in watchdog hardware in Broadcom 1927 BCM2835 SoC. 1928 1929 To compile this driver as a loadable module, choose M here. 1930 The module will be called bcm2835_wdt. 1931 1932config BCM_KONA_WDT 1933 tristate "BCM Kona Watchdog" 1934 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1935 select WATCHDOG_CORE 1936 help 1937 Support for the watchdog timer on the following Broadcom BCM281xx 1938 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1939 BCM28155 variants. 1940 1941 Say 'Y' or 'M' here to enable the driver. The module will be called 1942 bcm_kona_wdt. 1943 1944config BCM_KONA_WDT_DEBUG 1945 bool "DEBUGFS support for BCM Kona Watchdog" 1946 depends on BCM_KONA_WDT || COMPILE_TEST 1947 help 1948 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1949 access to the driver's internal data structures as well as watchdog 1950 timer hardware registres. 1951 1952 If in doubt, say 'N'. 1953 1954config BCM7038_WDT 1955 tristate "BCM63xx/BCM7038 Watchdog" 1956 select WATCHDOG_CORE 1957 depends on HAS_IOMEM 1958 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1959 help 1960 Watchdog driver for the built-in hardware in Broadcom 7038 and 1961 later SoCs used in set-top boxes. BCM7038 was made public 1962 during the 2004 CES, and since then, many Broadcom chips use this 1963 watchdog block, including some cable modem chips and DSL (63xx) 1964 chips. 1965 1966config IMGPDC_WDT 1967 tristate "Imagination Technologies PDC Watchdog Timer" 1968 depends on HAS_IOMEM 1969 depends on MIPS || COMPILE_TEST 1970 select WATCHDOG_CORE 1971 help 1972 Driver for Imagination Technologies PowerDown Controller 1973 Watchdog Timer. 1974 1975 To compile this driver as a loadable module, choose M here. 1976 The module will be called imgpdc_wdt. 1977 1978config LANTIQ_WDT 1979 tristate "Lantiq SoC watchdog" 1980 depends on LANTIQ 1981 select WATCHDOG_CORE 1982 help 1983 Hardware driver for the Lantiq SoC Watchdog Timer. 1984 1985config LOONGSON1_WDT 1986 tristate "Loongson1 SoC hardware watchdog" 1987 depends on MACH_LOONGSON32 || MACH_LOONGSON64 || COMPILE_TEST 1988 select WATCHDOG_CORE 1989 help 1990 Hardware driver for the Loongson family Watchdog Timer. 1991 1992config RALINK_WDT 1993 tristate "Ralink SoC watchdog" 1994 select WATCHDOG_CORE 1995 depends on RALINK 1996 help 1997 Hardware driver for the Ralink SoC Watchdog Timer. 1998 1999config GXP_WATCHDOG 2000 tristate "HPE GXP watchdog support" 2001 depends on ARCH_HPE_GXP || COMPILE_TEST 2002 select WATCHDOG_CORE 2003 help 2004 Say Y here to include support for the watchdog timer 2005 in HPE GXP SoCs. 2006 2007 To compile this driver as a module, choose M here. 2008 The module will be called gxp-wdt. 2009 2010config MT7621_WDT 2011 tristate "Mediatek SoC watchdog" 2012 select WATCHDOG_CORE 2013 select REGMAP_MMIO 2014 select MFD_SYSCON 2015 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 2016 help 2017 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 2018 2019config PIC32_WDT 2020 tristate "Microchip PIC32 hardware watchdog" 2021 select WATCHDOG_CORE 2022 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2023 help 2024 Watchdog driver for the built in watchdog hardware in a PIC32. 2025 2026 Configuration bits must be set appropriately for the watchdog to be 2027 controlled by this driver. 2028 2029 To compile this driver as a loadable module, choose M here. 2030 The module will be called pic32-wdt. 2031 2032config PIC32_DMT 2033 tristate "Microchip PIC32 Deadman Timer" 2034 select WATCHDOG_CORE 2035 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 2036 help 2037 Watchdog driver for PIC32 instruction fetch counting timer. This 2038 specific timer is typically be used in mission critical and safety 2039 critical applications, where any single failure of the software 2040 functionality and sequencing must be detected. 2041 2042 To compile this driver as a loadable module, choose M here. 2043 The module will be called pic32-dmt. 2044 2045# PARISC Architecture 2046 2047# POWERPC Architecture 2048 2049config GEF_WDT 2050 tristate "GE Watchdog Timer" 2051 depends on GE_FPGA 2052 help 2053 Watchdog timer found in a number of GE single board computers. 2054 2055config MPC5200_WDT 2056 bool "MPC52xx Watchdog Timer" 2057 depends on PPC_MPC52xx || COMPILE_TEST 2058 help 2059 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2060 2061config 8xxx_WDT 2062 tristate "MPC8xxx Platform Watchdog Timer" 2063 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2064 select WATCHDOG_CORE 2065 help 2066 This driver is for a SoC level watchdog that exists on some 2067 Freescale PowerPC processors. So far this driver supports: 2068 - MPC8xx watchdogs 2069 - MPC83xx watchdogs 2070 - MPC86xx watchdogs 2071 2072 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2073 2074config PIKA_WDT 2075 tristate "PIKA FPGA Watchdog" 2076 depends on WARP || (PPC64 && COMPILE_TEST) 2077 default WARP 2078 help 2079 This enables the watchdog in the PIKA FPGA. Currently used on 2080 the Warp platform. 2081 2082config BOOKE_WDT 2083 tristate "PowerPC Book-E Watchdog Timer" 2084 depends on BOOKE || 4xx 2085 select WATCHDOG_CORE 2086 help 2087 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2088 MPC85xx SOCs and the IBM PowerPC 440. 2089 2090 Please see Documentation/watchdog/watchdog-api.rst for 2091 more information. 2092 2093config BOOKE_WDT_DEFAULT_TIMEOUT 2094 int "PowerPC Book-E Watchdog Timer Default Timeout" 2095 depends on BOOKE_WDT 2096 default 38 if PPC_E500 2097 range 0 63 if PPC_E500 2098 default 3 if !PPC_E500 2099 range 0 3 if !PPC_E500 2100 help 2101 Select the default watchdog timer period to be used by the PowerPC 2102 Book-E watchdog driver. A watchdog "event" occurs when the bit 2103 position represented by this number transitions from zero to one. 2104 2105 For Freescale Book-E processors, this is a number between 0 and 63. 2106 For other Book-E processors, this is a number between 0 and 3. 2107 2108 The value can be overridden by the wdt_period command-line parameter. 2109 2110config MEN_A21_WDT 2111 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2112 select WATCHDOG_CORE 2113 depends on GPIOLIB || COMPILE_TEST 2114 help 2115 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2116 2117 The driver can also be built as a module. If so, the module will be 2118 called mena21_wdt. 2119 2120 If unsure select N here. 2121 2122# PPC64 Architecture 2123 2124config PSERIES_WDT 2125 tristate "POWER Architecture Platform Watchdog Timer" 2126 depends on PPC_PSERIES 2127 select WATCHDOG_CORE 2128 help 2129 Driver for virtual watchdog timers provided by PAPR 2130 hypervisors (e.g. PowerVM, KVM). 2131 2132config WATCHDOG_RTAS 2133 tristate "RTAS watchdog" 2134 depends on PPC_RTAS 2135 help 2136 This driver adds watchdog support for the RTAS watchdog. 2137 2138 To compile this driver as a module, choose M here. The module 2139 will be called wdrtas. 2140 2141# RISC-V Architecture 2142 2143config STARFIVE_WATCHDOG 2144 tristate "StarFive Watchdog support" 2145 depends on ARCH_STARFIVE || COMPILE_TEST 2146 select WATCHDOG_CORE 2147 default ARCH_STARFIVE 2148 help 2149 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2150 SoC. This driver can also be built as a module if choose M. 2151 2152# S390 Architecture 2153 2154config DIAG288_WATCHDOG 2155 tristate "System z diag288 Watchdog" 2156 depends on S390 2157 select WATCHDOG_CORE 2158 help 2159 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2160 provide a virtual watchdog timer to their guest that cause a 2161 user define Control Program command to be executed after a 2162 timeout. 2163 LPAR provides a very similar interface. This driver handles 2164 both. 2165 2166 To compile this driver as a module, choose M here. The module 2167 will be called diag288_wdt. 2168 2169# SUPERH (sh + sh64) Architecture 2170 2171config SH_WDT 2172 tristate "SuperH Watchdog" 2173 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2174 select WATCHDOG_CORE 2175 help 2176 This driver adds watchdog support for the integrated watchdog in the 2177 SuperH processors. If you have one of these processors and wish 2178 to have watchdog support enabled, say Y, otherwise say N. 2179 2180 As a side note, saying Y here will automatically boost HZ to 1000 2181 so that the timer has a chance to clear the overflow counter. On 2182 slower systems (such as the SH-2 and SH-3) this will likely yield 2183 some performance issues. As such, the WDT should be avoided here 2184 unless it is absolutely necessary. 2185 2186 To compile this driver as a module, choose M here: the 2187 module will be called shwdt. 2188 2189# SPARC Architecture 2190 2191# SPARC64 Architecture 2192 2193config WATCHDOG_CP1XXX 2194 tristate "CP1XXX Hardware Watchdog support" 2195 depends on SPARC64 && PCI 2196 help 2197 This is the driver for the hardware watchdog timers present on 2198 Sun Microsystems CompactPCI models CP1400 and CP1500. 2199 2200 To compile this driver as a module, choose M here: the 2201 module will be called cpwatchdog. 2202 2203 If you do not have a CompactPCI model CP1400 or CP1500, or 2204 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2205 you should say N to this option. 2206 2207config WATCHDOG_RIO 2208 tristate "RIO Hardware Watchdog support" 2209 depends on SPARC64 && PCI 2210 help 2211 Say Y here to support the hardware watchdog capability on Sun RIO 2212 machines. The watchdog timeout period is normally one minute but 2213 can be changed with a boot-time parameter. 2214 2215config WATCHDOG_SUN4V 2216 tristate "Sun4v Watchdog support" 2217 select WATCHDOG_CORE 2218 depends on SPARC64 2219 help 2220 Say Y here to support the hypervisor watchdog capability embedded 2221 in the SPARC sun4v architecture. 2222 2223 To compile this driver as a module, choose M here. The module will 2224 be called sun4v_wdt. 2225 2226# XTENSA Architecture 2227 2228# Xen Architecture 2229 2230config XEN_WDT 2231 tristate "Xen Watchdog support" 2232 depends on XEN 2233 select WATCHDOG_CORE 2234 help 2235 Say Y here to support the hypervisor watchdog capability provided 2236 by Xen 4.0 and newer. The watchdog timeout period is normally one 2237 minute but can be changed with a boot-time parameter. 2238 2239config UML_WATCHDOG 2240 tristate "UML watchdog" 2241 depends on UML || COMPILE_TEST 2242 2243# 2244# ISA-based Watchdog Cards 2245# 2246 2247comment "ISA-based Watchdog Cards" 2248 depends on ISA 2249 2250config PCWATCHDOG 2251 tristate "Berkshire Products ISA-PC Watchdog" 2252 depends on ISA 2253 help 2254 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2255 This card simply watches your kernel to make sure it doesn't freeze, 2256 and if it does, it reboots your computer after a certain amount of 2257 time. This driver is like the WDT501 driver but for different 2258 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2259 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2260 2261 To compile this driver as a module, choose M here: the 2262 module will be called pcwd. 2263 2264 Most people will say N. 2265 2266config MIXCOMWD 2267 tristate "Mixcom Watchdog" 2268 depends on ISA 2269 help 2270 This is a driver for the Mixcom hardware watchdog cards. This 2271 watchdog simply watches your kernel to make sure it doesn't freeze, 2272 and if it does, it reboots your computer after a certain amount of 2273 time. 2274 2275 To compile this driver as a module, choose M here: the 2276 module will be called mixcomwd. 2277 2278 Most people will say N. 2279 2280config WDT 2281 tristate "WDT Watchdog timer" 2282 depends on ISA 2283 help 2284 If you have a WDT500P or WDT501P watchdog board, say Y here, 2285 otherwise N. It is not possible to probe for this board, which means 2286 that you have to inform the kernel about the IO port and IRQ that 2287 is needed (you can do this via the io and irq parameters) 2288 2289 To compile this driver as a module, choose M here: the 2290 module will be called wdt. 2291 2292# 2293# PCI-based Watchdog Cards 2294# 2295 2296comment "PCI-based Watchdog Cards" 2297 depends on PCI 2298 2299config PCIPCWATCHDOG 2300 tristate "Berkshire Products PCI-PC Watchdog" 2301 depends on PCI && HAS_IOPORT 2302 help 2303 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2304 This card simply watches your kernel to make sure it doesn't freeze, 2305 and if it does, it reboots your computer after a certain amount of 2306 time. The card can also monitor the internal temperature of the PC. 2307 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2308 2309 To compile this driver as a module, choose M here: the 2310 module will be called pcwd_pci. 2311 2312 Most people will say N. 2313 2314config WDTPCI 2315 tristate "PCI-WDT500/501 Watchdog timer" 2316 depends on PCI && HAS_IOPORT 2317 help 2318 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2319 2320 If you have a PCI-WDT501 watchdog board then you can enable the 2321 temperature sensor by setting the type parameter to 501. 2322 2323 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2324 can do this via the tachometer parameter. Only do this if you have a 2325 fan tachometer actually set up. 2326 2327 To compile this driver as a module, choose M here: the 2328 module will be called wdt_pci. 2329 2330# 2331# USB-based Watchdog Cards 2332# 2333 2334comment "USB-based Watchdog Cards" 2335 depends on USB 2336 2337config USBPCWATCHDOG 2338 tristate "Berkshire Products USB-PC Watchdog" 2339 depends on USB 2340 help 2341 This is the driver for the Berkshire Products USB-PC Watchdog card. 2342 This card simply watches your kernel to make sure it doesn't freeze, 2343 and if it does, it reboots your computer after a certain amount of 2344 time. The card can also monitor the internal temperature of the PC. 2345 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2346 2347 To compile this driver as a module, choose M here: the 2348 module will be called pcwd_usb. 2349 2350 Most people will say N. 2351 2352config KEEMBAY_WATCHDOG 2353 tristate "Intel Keem Bay SoC non-secure watchdog" 2354 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2355 select WATCHDOG_CORE 2356 help 2357 This option enable support for an In-secure watchdog timer driver for 2358 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2359 count unit. An interrupt will be triggered, when the count crosses 2360 the threshold configured in the register. 2361 2362 To compile this driver as a module, choose M here: the 2363 module will be called keembay_wdt. 2364 2365endif # WATCHDOG 2366