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 \ 97 WATCHDOG_PRETIMEOUT_GOV_NOOP=n && WATCHDOG_PRETIMEOUT_GOV_DUMP=n 98 99if WATCHDOG_PRETIMEOUT_GOV 100 101config WATCHDOG_PRETIMEOUT_GOV_DUMP 102 tristate "Dump watchdog pretimeout governor" 103 depends on WATCHDOG_CORE 104 default WATCHDOG_CORE 105 help 106 Dump watchdog pretimeout governor, all cpu backtrace is 107 added to kernel log buffer. 108 109config WATCHDOG_PRETIMEOUT_GOV_NOOP 110 tristate "Noop watchdog pretimeout governor" 111 depends on WATCHDOG_CORE 112 default WATCHDOG_CORE 113 help 114 Noop watchdog pretimeout governor, only an informational 115 message is added to kernel log buffer. 116 117config WATCHDOG_PRETIMEOUT_GOV_PANIC 118 tristate "Panic watchdog pretimeout governor" 119 depends on WATCHDOG_CORE 120 default WATCHDOG_CORE 121 help 122 Panic watchdog pretimeout governor, on watchdog pretimeout 123 event put the kernel into panic. 124 125choice 126 prompt "Default Watchdog Pretimeout Governor" 127 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 128 help 129 This option selects a default watchdog pretimeout governor. 130 The governor takes its action, if a watchdog is capable 131 to report a pretimeout event. 132 133config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_DUMP 134 bool "dump" 135 depends on WATCHDOG_PRETIMEOUT_GOV_DUMP 136 help 137 Use dump watchdog pretimeout governor by default. If dump 138 governor is selected by a user, dump all cpu backtrace to 139 the kernel log buffer and don't do any system changes. 140 141config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 142 bool "noop" 143 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 144 help 145 Use noop watchdog pretimeout governor by default. If noop 146 governor is selected by a user, write a short message to 147 the kernel log buffer and don't do any system changes. 148 149config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 150 bool "panic" 151 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 152 help 153 Use panic watchdog pretimeout governor by default, if 154 a watchdog pretimeout event happens, consider that 155 a watchdog feeder is dead and reboot is unavoidable. 156 157endchoice 158 159endif # WATCHDOG_PRETIMEOUT_GOV 160 161# 162# General Watchdog drivers 163# 164 165comment "Watchdog Device Drivers" 166 167# Architecture Independent 168 169config SOFT_WATCHDOG 170 tristate "Software watchdog" 171 select WATCHDOG_CORE 172 help 173 A software monitoring watchdog. This will fail to reboot your system 174 from some situations that the hardware watchdog will recover 175 from. Equally it's a lot cheaper to install. 176 177 To compile this driver as a module, choose M here: the 178 module will be called softdog. 179 180config SOFT_WATCHDOG_PRETIMEOUT 181 bool "Software watchdog pretimeout governor support" 182 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 183 help 184 Enable this if you want to use pretimeout governors with the software 185 watchdog. Be aware that governors might affect the watchdog because it 186 is purely software, e.g. the panic governor will stall it! 187 188config BD957XMUF_WATCHDOG 189 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 190 depends on MFD_ROHM_BD957XMUF 191 select WATCHDOG_CORE 192 help 193 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 194 These PMIC ICs contain watchdog block which can be configured 195 to toggle reset line if SoC fails to ping watchdog via GPIO. 196 197 Say Y here to include support for the ROHM BD9576 or BD9573 198 watchdog. Alternatively say M to compile the driver as a module, 199 which will be called bd9576_wdt. 200 201config BD96801_WATCHDOG 202 tristate "ROHM BD96801 PMIC Watchdog" 203 depends on MFD_ROHM_BD96801 204 select WATCHDOG_CORE 205 help 206 Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be 207 configured to only generate IRQ or to trigger system reset via reset 208 pin. 209 210 Say Y here to include support for the ROHM BD96801 watchdog. 211 Alternatively say M to compile the driver as a module, 212 which will be called bd96801_wdt. 213 214config CROS_EC_WATCHDOG 215 tristate "ChromeOS EC-based watchdog" 216 select WATCHDOG_CORE 217 depends on CROS_EC 218 help 219 Watchdog driver for Chromebook devices equipped with embedded controller. 220 Trigger event is recorded in EC and checked on the subsequent boot. 221 222 To compile this driver as a module, choose M here: the 223 module will be called cros_ec_wdt. 224 225config DA9052_WATCHDOG 226 tristate "Dialog DA9052 Watchdog" 227 depends on PMIC_DA9052 || COMPILE_TEST 228 select WATCHDOG_CORE 229 help 230 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 231 cause system reset. 232 233 Say Y here to include support for the DA9052 watchdog. 234 Alternatively say M to compile the driver as a module, 235 which will be called da9052_wdt. 236 237config DA9055_WATCHDOG 238 tristate "Dialog Semiconductor DA9055 Watchdog" 239 depends on MFD_DA9055 || COMPILE_TEST 240 select WATCHDOG_CORE 241 help 242 If you say yes here you get support for watchdog on the Dialog 243 Semiconductor DA9055 PMIC. 244 245 This driver can also be built as a module. If so, the module 246 will be called da9055_wdt. 247 248config DA9063_WATCHDOG 249 tristate "Dialog DA9063 Watchdog" 250 depends on MFD_DA9063 || COMPILE_TEST 251 depends on I2C 252 select WATCHDOG_CORE 253 help 254 Support for the watchdog in the DA9063 PMIC. 255 256 This driver can be built as a module. The module name is da9063_wdt. 257 258config DA9062_WATCHDOG 259 tristate "Dialog DA9062/61 Watchdog" 260 depends on MFD_DA9062 || COMPILE_TEST 261 depends on I2C 262 select WATCHDOG_CORE 263 help 264 Support for the watchdog in the DA9062 and DA9061 PMICs. 265 266 This driver can be built as a module. The module name is da9062_wdt. 267 268config GPIO_WATCHDOG 269 tristate "Watchdog device controlled through GPIO-line" 270 depends on GPIOLIB && (ACPI || OF) 271 select WATCHDOG_CORE 272 help 273 If you say yes here you get support for watchdog device 274 controlled through GPIO-line. 275 276config GPIO_WATCHDOG_ARCH_INITCALL 277 bool "Register the watchdog as early as possible" 278 depends on GPIO_WATCHDOG=y 279 help 280 In some situations, the default initcall level (module_init) 281 in not early enough in the boot process to avoid the watchdog 282 to be triggered. 283 If you say yes here, the initcall level would be raised to 284 arch_initcall. 285 If in doubt, say N. 286 287config LENOVO_SE10_WDT 288 tristate "Lenovo SE10 Watchdog" 289 depends on (X86 && DMI) || COMPILE_TEST 290 depends on HAS_IOPORT 291 select WATCHDOG_CORE 292 help 293 If you say yes here you get support for the watchdog 294 functionality for the Lenovo SE10 platform. 295 296 This driver can also be built as a module. If so, the module 297 will be called lenovo-se10-wdt. 298 299config LENOVO_SE30_WDT 300 tristate "Lenovo SE30 Watchdog" 301 depends on (X86 && DMI) || COMPILE_TEST 302 depends on HAS_IOPORT 303 select WATCHDOG_CORE 304 help 305 If you say yes here you get support for the watchdog 306 functionality for the Lenovo SE30 platform. 307 308 This driver can also be built as a module. If so, the module 309 will be called lenovo-se30-wdt. 310 311config LENOVO_SE30G2_SE60_WDT 312 tristate "Lenovo SE30 Gen 2, SE60 Watchdog" 313 depends on (X86 && DMI) || COMPILE_TEST 314 depends on HAS_IOPORT 315 select WATCHDOG_CORE 316 help 317 If you say yes here you get support for the watchdog 318 functionality for the Lenovo SE30 Gen2 and SE60 platforms. 319 320 This driver can also be built as a module. If so, the module 321 will be called lenovo-se30g2-se60-wdt. 322 323config MENF21BMC_WATCHDOG 324 tristate "MEN 14F021P00 BMC Watchdog" 325 depends on MFD_MENF21BMC || COMPILE_TEST 326 depends on I2C 327 select WATCHDOG_CORE 328 help 329 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 330 331 This driver can also be built as a module. If so the module 332 will be called menf21bmc_wdt. 333 334config MENZ069_WATCHDOG 335 tristate "MEN 16Z069 Watchdog" 336 depends on MCB 337 select WATCHDOG_CORE 338 help 339 Say Y here to include support for the MEN 16Z069 Watchdog. 340 341 This driver can also be built as a module. If so the module 342 will be called menz069_wdt. 343 344config WDAT_WDT 345 tristate "ACPI Watchdog Action Table (WDAT)" 346 depends on ACPI 347 select WATCHDOG_CORE 348 select ACPI_WATCHDOG 349 help 350 This driver adds support for systems with ACPI Watchdog Action 351 Table (WDAT) table. Servers typically have this but it can be 352 found on some desktop machines as well. This driver will take 353 over the native iTCO watchdog driver found on many Intel CPUs. 354 355 To compile this driver as module, choose M here: the module will 356 be called wdat_wdt. 357 358config WM831X_WATCHDOG 359 tristate "WM831x watchdog" 360 depends on MFD_WM831X 361 select WATCHDOG_CORE 362 help 363 Support for the watchdog in the WM831x AudioPlus PMICs. When 364 the watchdog triggers the system will be reset. 365 366config WM8350_WATCHDOG 367 tristate "WM8350 watchdog" 368 depends on MFD_WM8350 369 select WATCHDOG_CORE 370 help 371 Support for the watchdog in the WM8350 AudioPlus PMIC. When 372 the watchdog triggers the system will be reset. 373 374config XILINX_WATCHDOG 375 tristate "Xilinx Watchdog timer" 376 depends on HAS_IOMEM 377 select WATCHDOG_CORE 378 help 379 Watchdog driver for the xps_timebase_wdt IP core. 380 381 To compile this driver as a module, choose M here: the 382 module will be called of_xilinx_wdt. 383 384config XILINX_WINDOW_WATCHDOG 385 tristate "Xilinx window watchdog timer" 386 depends on HAS_IOMEM 387 depends on ARM64 || COMPILE_TEST 388 select WATCHDOG_CORE 389 help 390 Window watchdog driver for the versal_wwdt IP core. 391 Window watchdog timer(WWDT) contains closed(first) and 392 open(second) window with 32 bit width. Write to the watchdog 393 timer within predefined window periods of time. This means 394 a period that is not too soon and a period that is not too 395 late. The WWDT has to be restarted within the open window time. 396 If software tries to restart WWDT outside of the open window 397 time period, it generates a reset. 398 399 To compile this driver as a module, choose M here: the 400 module will be called xilinx_wwdt. 401 402config ZIIRAVE_WATCHDOG 403 tristate "Zodiac RAVE Watchdog Timer" 404 depends on I2C 405 select WATCHDOG_CORE 406 help 407 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 408 Processor. 409 410 To compile this driver as a module, choose M here: the 411 module will be called ziirave_wdt. 412 413config RAVE_SP_WATCHDOG 414 tristate "RAVE SP Watchdog timer" 415 depends on RAVE_SP_CORE 416 depends on NVMEM || !NVMEM 417 select WATCHDOG_CORE 418 help 419 Support for the watchdog on RAVE SP device. 420 421config MLX_WDT 422 tristate "Mellanox Watchdog" 423 depends on MELLANOX_PLATFORM || COMPILE_TEST 424 select WATCHDOG_CORE 425 select REGMAP 426 help 427 This is the driver for the hardware watchdog on Mellanox systems. 428 If you are going to use it, say Y here, otherwise N. 429 This driver can be used together with the watchdog daemon. 430 It can also watch your kernel to make sure it doesn't freeze, 431 and if it does, it reboots your system after a certain amount of 432 time. 433 434 To compile this driver as a module, choose M here: the 435 module will be called mlx-wdt. 436 437config SL28CPLD_WATCHDOG 438 tristate "Kontron sl28cpld Watchdog" 439 depends on MFD_SL28CPLD || COMPILE_TEST 440 select WATCHDOG_CORE 441 help 442 Say Y here to include support for the watchdog timer 443 on the Kontron sl28 CPLD. 444 445 To compile this driver as a module, choose M here: the 446 module will be called sl28cpld_wdt. 447 448# ALPHA Architecture 449 450# ARM Architecture 451 452config AIROHA_WATCHDOG 453 tristate "Airoha EN7581 Watchdog" 454 depends on ARCH_AIROHA || COMPILE_TEST 455 select WATCHDOG_CORE 456 help 457 Watchdog timer embedded into Airoha SoC. This will reboot your 458 system when the timeout is reached. 459 460config ARM_SP805_WATCHDOG 461 tristate "ARM SP805 Watchdog" 462 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 463 select WATCHDOG_CORE 464 help 465 ARM Primecell SP805 Watchdog timer. This will reboot your system when 466 the timeout is reached. 467 468config ARM_SBSA_WATCHDOG 469 tristate "ARM SBSA Generic Watchdog" 470 depends on ARM64 471 depends on ARM_ARCH_TIMER 472 select WATCHDOG_CORE 473 help 474 ARM SBSA Generic Watchdog has two stage timeouts: 475 the first signal (WS0) is for alerting the system by interrupt, 476 the second one (WS1) is a real hardware reset. 477 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 478 479 This driver can operate ARM SBSA Generic Watchdog as a single stage 480 or a two stages watchdog, it depends on the module parameter "action". 481 482 Note: the maximum timeout in the two stages mode is half of that in 483 the single stage mode. 484 485 To compile this driver as module, choose M here: The module 486 will be called sbsa_gwdt. 487 488config ARMADA_37XX_WATCHDOG 489 tristate "Armada 37xx watchdog" 490 depends on ARCH_MVEBU || COMPILE_TEST 491 depends on HAS_IOMEM 492 select MFD_SYSCON 493 select WATCHDOG_CORE 494 help 495 Say Y here to include support for the watchdog timer found on 496 Marvell Armada 37xx SoCs. 497 To compile this driver as a module, choose M here: the 498 module will be called armada_37xx_wdt. 499 500config ASM9260_WATCHDOG 501 tristate "Alphascale ASM9260 watchdog" 502 depends on MACH_ASM9260 || COMPILE_TEST 503 depends on OF 504 select WATCHDOG_CORE 505 select RESET_CONTROLLER 506 help 507 Watchdog timer embedded into Alphascale asm9260 chips. This will 508 reboot your system when the timeout is reached. 509 510config AT91RM9200_WATCHDOG 511 tristate "AT91RM9200 watchdog" 512 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 513 help 514 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 515 system when the timeout is reached. 516 517config AT91SAM9X_WATCHDOG 518 tristate "AT91SAM9X / AT91CAP9 watchdog" 519 depends on ARCH_AT91 || COMPILE_TEST 520 select WATCHDOG_CORE 521 help 522 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 523 reboot your system when the timeout is reached. 524 525config SAMA5D4_WATCHDOG 526 tristate "Atmel SAMA5D4 Watchdog Timer" 527 depends on ARCH_AT91 || COMPILE_TEST 528 select WATCHDOG_CORE 529 help 530 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 531 Its Watchdog Timer Mode Register can be written more than once. 532 This will reboot your system when the timeout is reached. 533 534config CADENCE_WATCHDOG 535 tristate "Cadence Watchdog Timer" 536 depends on HAS_IOMEM 537 select WATCHDOG_CORE 538 help 539 Say Y here if you want to include support for the watchdog 540 timer in the Xilinx Zynq. 541 542config 21285_WATCHDOG 543 tristate "DC21285 watchdog" 544 depends on FOOTBRIDGE 545 help 546 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 547 here if you wish to use this. Alternatively say M to compile the 548 driver as a module, which will be called wdt285. 549 550 This driver does not work on all machines. In particular, early CATS 551 boards have hardware problems that will cause the machine to simply 552 lock up if the watchdog fires. 553 554 "If in doubt, leave it out" - say N. 555 556config 977_WATCHDOG 557 tristate "NetWinder WB83C977 watchdog" 558 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 559 depends on HAS_IOPORT 560 help 561 Say Y here to include support for the WB977 watchdog included in 562 NetWinder machines. Alternatively say M to compile the driver as 563 a module, which will be called wdt977. 564 565 Not sure? It's safe to say N. 566 567config FTWDT010_WATCHDOG 568 tristate "Faraday Technology FTWDT010 watchdog" 569 depends on ARM || COMPILE_TEST 570 select WATCHDOG_CORE 571 default ARCH_GEMINI 572 help 573 Say Y here if to include support for the Faraday Technology 574 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 575 family of devices. 576 577 To compile this driver as a module, choose M here: the 578 module will be called ftwdt010_wdt. 579 580config IXP4XX_WATCHDOG 581 tristate "IXP4xx Watchdog" 582 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 583 select WATCHDOG_CORE 584 help 585 Say Y here if to include support for the watchdog timer 586 in the Intel IXP4xx network processors. This driver can 587 be built as a module by choosing M. The module will 588 be called ixp4xx_wdt. 589 590 Note: The internal IXP4xx watchdog does a soft CPU reset 591 which doesn't reset any peripherals. There are circumstances 592 where the watchdog will fail to reset the board correctly 593 (e.g., if the boot ROM is in an unreadable state). 594 595 Say N if you are unsure. 596 597config S3C2410_WATCHDOG 598 tristate "S3C6410/S5Pv210/Exynos Watchdog" 599 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 600 select WATCHDOG_CORE 601 select MFD_SYSCON if ARCH_EXYNOS 602 help 603 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 604 SoCs. This will reboot the system when the timer expires with 605 the watchdog enabled. 606 607 The driver is limited by the speed of the system's PCLK 608 signal, so with reasonably fast systems (PCLK around 50-66MHz) 609 then watchdog intervals of over approximately 20seconds are 610 unavailable. 611 612 Choose Y/M here only if you build for such Samsung SoC. 613 The driver can be built as a module by choosing M, and will 614 be called s3c2410_wdt. 615 616config SA1100_WATCHDOG 617 tristate "SA1100/PXA2xx watchdog" 618 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 619 help 620 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 621 reboot your system when timeout is reached. 622 623 NOTE: once enabled, this timer cannot be disabled. 624 625 To compile this driver as a module, choose M here: the 626 module will be called sa1100_wdt. 627 628config DW_WATCHDOG 629 tristate "Synopsys DesignWare watchdog" 630 depends on HAS_IOMEM 631 select WATCHDOG_CORE 632 help 633 Say Y here if to include support for the Synopsys DesignWare 634 watchdog timer found in many chips. 635 To compile this driver as a module, choose M here: the 636 module will be called dw_wdt. 637 638config EP93XX_WATCHDOG 639 tristate "EP93xx Watchdog" 640 depends on ARCH_EP93XX || COMPILE_TEST 641 select WATCHDOG_CORE 642 help 643 Say Y here if to include support for the watchdog timer 644 embedded in the Cirrus Logic EP93xx family of devices. 645 646 To compile this driver as a module, choose M here: the 647 module will be called ep93xx_wdt. 648 649config OMAP_WATCHDOG 650 tristate "OMAP Watchdog" 651 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 652 select WATCHDOG_CORE 653 help 654 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 655 Say 'Y' here to enable the 656 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 657 658config PNX4008_WATCHDOG 659 tristate "LPC32XX Watchdog" 660 depends on ARCH_LPC32XX || COMPILE_TEST 661 select WATCHDOG_CORE 662 help 663 Say Y here if to include support for the watchdog timer 664 in the LPC32XX processor. 665 This driver can be built as a module by choosing M. The module 666 will be called pnx4008_wdt. 667 668 Say N if you are unsure. 669 670config DAVINCI_WATCHDOG 671 tristate "DaVinci watchdog" 672 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 673 select WATCHDOG_CORE 674 help 675 Say Y here if to include support for the watchdog timer 676 in the DaVinci DM644x/DM646x or Keystone processors. 677 To compile this driver as a module, choose M here: the 678 module will be called davinci_wdt. 679 680 NOTE: once enabled, this timer cannot be disabled. 681 Say N if you are unsure. 682 683config K3_RTI_WATCHDOG 684 tristate "Texas Instruments K3 RTI watchdog" 685 depends on ARCH_K3 || COMPILE_TEST 686 select WATCHDOG_CORE 687 help 688 Say Y here if you want to include support for the K3 watchdog 689 timer (RTI module) available in the K3 generation of processors. 690 691config ORION_WATCHDOG 692 tristate "Orion watchdog" 693 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 694 depends on ARM 695 select WATCHDOG_CORE 696 help 697 Say Y here if to include support for the watchdog timer 698 in the Marvell Orion5x and Kirkwood ARM SoCs. 699 To compile this driver as a module, choose M here: the 700 module will be called orion_wdt. 701 702config RN5T618_WATCHDOG 703 tristate "Ricoh RN5T618 watchdog" 704 depends on MFD_RN5T618 || COMPILE_TEST 705 select WATCHDOG_CORE 706 help 707 If you say yes here you get support for watchdog on the Ricoh 708 RN5T618 PMIC. 709 710 This driver can also be built as a module. If so, the module 711 will be called rn5t618_wdt. 712 713config SUNXI_WATCHDOG 714 tristate "Allwinner SoCs watchdog support" 715 depends on ARCH_SUNXI || COMPILE_TEST 716 select WATCHDOG_CORE 717 help 718 Say Y here to include support for the watchdog timer 719 in Allwinner SoCs. 720 To compile this driver as a module, choose M here: the 721 module will be called sunxi_wdt. 722 723config NPCM7XX_WATCHDOG 724 tristate "Nuvoton NPCM750 watchdog" 725 depends on ARCH_NPCM || COMPILE_TEST 726 default y if ARCH_NPCM7XX 727 select WATCHDOG_CORE 728 help 729 Say Y here to include Watchdog timer support for the 730 watchdog embedded into the NPCM7xx. 731 This watchdog is used to reset the system and thus cannot be 732 compiled as a module. 733 734config TWL4030_WATCHDOG 735 tristate "TWL4030 Watchdog" 736 depends on TWL4030_CORE 737 select WATCHDOG_CORE 738 help 739 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 740 watchdog timer support for TWL4030 chips. 741 742config STMP3XXX_RTC_WATCHDOG 743 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 744 depends on RTC_DRV_STMP || COMPILE_TEST 745 select WATCHDOG_CORE 746 help 747 Say Y here to include support for the watchdog timer inside 748 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 749 To compile this driver as a module, choose M here: the 750 module will be called stmp3xxx_rtc_wdt. 751 752config MA35D1_WDT 753 tristate "Nuvoton MA35D1 Watchdog Timer" 754 depends on ARCH_MA35 || COMPILE_TEST 755 select WATCHDOG_CORE 756 help 757 Say Y here to include support for the watchdog timer 758 for the Nuvoton MA35D1 series microprocessor. 759 To compile this driver as a module, choose M here: the 760 module will be called ma35d1_wdt. 761 762config TS4800_WATCHDOG 763 tristate "TS-4800 Watchdog" 764 depends on HAS_IOMEM && OF 765 depends on SOC_IMX51 || COMPILE_TEST 766 select WATCHDOG_CORE 767 select MFD_SYSCON 768 help 769 Technologic Systems TS-4800 has watchdog timer implemented in 770 an external FPGA. Say Y here if you want to support for the 771 watchdog timer on TS-4800 board. 772 773config TS72XX_WATCHDOG 774 tristate "TS-72XX SBC Watchdog" 775 depends on MACH_TS72XX || COMPILE_TEST 776 select WATCHDOG_CORE 777 help 778 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 779 watchdog timer implemented in a external CPLD chip. Say Y here 780 if you want to support for the watchdog timer on TS-72XX boards. 781 782 To compile this driver as a module, choose M here: the 783 module will be called ts72xx_wdt. 784 785config MAX63XX_WATCHDOG 786 tristate "Max63xx watchdog" 787 depends on HAS_IOMEM 788 select WATCHDOG_CORE 789 help 790 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 791 792config MAX77620_WATCHDOG 793 tristate "Maxim Max77620 Watchdog Timer" 794 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 795 select WATCHDOG_CORE 796 help 797 This is the driver for the Max77620 watchdog timer. 798 Say 'Y' here to enable the watchdog timer support for 799 MAX77620 chips. To compile this driver as a module, 800 choose M here: the module will be called max77620_wdt. 801 802config NCT6694_WATCHDOG 803 tristate "Nuvoton NCT6694 watchdog support" 804 depends on MFD_NCT6694 805 select WATCHDOG_CORE 806 help 807 Say Y here to support Nuvoton NCT6694 watchdog timer 808 functionality. 809 810 This driver can also be built as a module. If so, the module 811 will be called nct6694_wdt. 812 813config IMX2_WDT 814 tristate "IMX2+ Watchdog" 815 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 816 select REGMAP_MMIO 817 select WATCHDOG_CORE 818 help 819 This is the driver for the hardware watchdog 820 on the Freescale IMX2 and later processors. 821 If you have one of these processors and wish to have 822 watchdog support enabled, say Y, otherwise say N. 823 824 To compile this driver as a module, choose M here: the 825 module will be called imx2_wdt. 826 827config IMX_SC_WDT 828 tristate "IMX SC Watchdog" 829 depends on HAVE_ARM_SMCCC 830 depends on IMX_SCU || COMPILE_TEST 831 select WATCHDOG_CORE 832 help 833 This is the driver for the system controller watchdog 834 on the NXP i.MX SoCs with system controller inside, the 835 watchdog driver will call ARM SMC API and trap into 836 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 837 will request system controller to execute the operations. 838 If you have one of these processors and wish to have 839 watchdog support enabled, say Y, otherwise say N. 840 841 To compile this driver as a module, choose M here: the 842 module will be called imx_sc_wdt. 843 844config IMX7ULP_WDT 845 tristate "IMX7ULP Watchdog" 846 depends on ARCH_MXC || COMPILE_TEST 847 select WATCHDOG_CORE 848 help 849 This is the driver for the hardware watchdog on the Freescale 850 IMX7ULP and later processors. If you have one of these 851 processors and wish to have watchdog support enabled, 852 say Y, otherwise say N. 853 854 To compile this driver as a module, choose M here: the 855 module will be called imx7ulp_wdt. 856 857config S32G_WDT 858 tristate "S32G Watchdog" 859 depends on ARCH_S32 || COMPILE_TEST 860 select WATCHDOG_CORE 861 help 862 This is the driver for the hardware watchdog on the NXP 863 S32G platforms. If you wish to have watchdog support 864 enabled, say Y, otherwise say N. 865 866config DB500_WATCHDOG 867 tristate "ST-Ericsson DB800 watchdog" 868 depends on MFD_DB8500_PRCMU 869 select WATCHDOG_CORE 870 default y 871 help 872 Say Y here to include Watchdog timer support for the watchdog 873 existing in the prcmu of ST-Ericsson DB8500 platform. 874 875 To compile this driver as a module, choose M here: the 876 module will be called db500_wdt. 877 878config RETU_WATCHDOG 879 tristate "Retu watchdog" 880 depends on MFD_RETU 881 select WATCHDOG_CORE 882 help 883 Retu watchdog driver for Nokia Internet Tablets (770, N800, 884 N810). At least on N800 the watchdog cannot be disabled, so 885 this driver is essential and you should enable it. 886 887 To compile this driver as a module, choose M here: the 888 module will be called retu_wdt. 889 890config MOXART_WDT 891 tristate "MOXART watchdog" 892 depends on ARCH_MOXART || COMPILE_TEST 893 help 894 Say Y here to include Watchdog timer support for the watchdog 895 existing on the MOXA ART SoC series platforms. 896 897 To compile this driver as a module, choose M here: the 898 module will be called moxart_wdt. 899 900config ST_LPC_WATCHDOG 901 tristate "STMicroelectronics LPC Watchdog" 902 depends on ARCH_STI || COMPILE_TEST 903 depends on OF 904 select WATCHDOG_CORE 905 help 906 Say Y here to include STMicroelectronics Low Power Controller 907 (LPC) based Watchdog timer support. 908 909 To compile this driver as a module, choose M here: the 910 module will be called st_lpc_wdt. 911 912config TEGRA_WATCHDOG 913 tristate "Tegra watchdog" 914 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 915 select WATCHDOG_CORE 916 help 917 Say Y here to include support for the watchdog timer 918 embedded in NVIDIA Tegra SoCs. 919 920 To compile this driver as a module, choose M here: the 921 module will be called tegra_wdt. 922 923config QCOM_WDT 924 tristate "Qualcomm watchdog" 925 depends on HAS_IOMEM 926 depends on ARCH_QCOM || COMPILE_TEST 927 select WATCHDOG_CORE 928 help 929 Say Y here to include Watchdog timer support for the watchdog found 930 on QCOM chipsets. Currently supported targets are the MSM8960, 931 APQ8064, and IPQ8064. 932 933 To compile this driver as a module, choose M here: the 934 module will be called qcom_wdt. 935 936config MESON_GXBB_WATCHDOG 937 tristate "Amlogic Meson GXBB SoCs watchdog support" 938 depends on ARCH_MESON || COMPILE_TEST 939 select WATCHDOG_CORE 940 help 941 Say Y here to include support for the watchdog timer 942 in Amlogic Meson GXBB SoCs. 943 To compile this driver as a module, choose M here: the 944 module will be called meson_gxbb_wdt. 945 946config MESON_WATCHDOG 947 tristate "Amlogic Meson SoCs watchdog support" 948 depends on ARCH_MESON || COMPILE_TEST 949 select WATCHDOG_CORE 950 help 951 Say Y here to include support for the watchdog timer 952 in Amlogic Meson SoCs. 953 To compile this driver as a module, choose M here: the 954 module will be called meson_wdt. 955 956config MEDIATEK_WATCHDOG 957 tristate "Mediatek SoCs watchdog support" 958 depends on ARCH_MEDIATEK || COMPILE_TEST 959 default ARCH_MEDIATEK 960 select WATCHDOG_CORE 961 select RESET_CONTROLLER 962 help 963 Say Y here to include support for the watchdog timer 964 in Mediatek SoCs. 965 To compile this driver as a module, choose M here: the 966 module will be called mtk_wdt. 967 968config DIGICOLOR_WATCHDOG 969 tristate "Conexant Digicolor SoCs watchdog support" 970 depends on ARCH_DIGICOLOR || COMPILE_TEST 971 select WATCHDOG_CORE 972 help 973 Say Y here to include support for the watchdog timer 974 in Conexant Digicolor SoCs. 975 To compile this driver as a module, choose M here: the 976 module will be called digicolor_wdt. 977 978config ARM_SMC_WATCHDOG 979 tristate "ARM Secure Monitor Call based watchdog support" 980 depends on ARM || ARM64 981 depends on OF 982 depends on HAVE_ARM_SMCCC 983 select WATCHDOG_CORE 984 help 985 Say Y here to include support for a watchdog timer 986 implemented by the EL3 Secure Monitor on ARM platforms. 987 Requires firmware support. 988 To compile this driver as a module, choose M here: the 989 module will be called arm_smc_wdt. 990 991config LPC18XX_WATCHDOG 992 tristate "LPC18xx/43xx Watchdog" 993 depends on ARCH_LPC18XX || COMPILE_TEST 994 depends on HAS_IOMEM 995 select WATCHDOG_CORE 996 help 997 Say Y here if to include support for the watchdog timer 998 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 999 processors. 1000 To compile this driver as a module, choose M here: the 1001 module will be called lpc18xx_wdt. 1002 1003config RENESAS_WDT 1004 tristate "Renesas WDT Watchdog" 1005 depends on ARCH_RENESAS || COMPILE_TEST 1006 select WATCHDOG_CORE 1007 help 1008 This driver adds watchdog support for the integrated watchdogs in the 1009 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 1010 1011config RENESAS_WWDT 1012 tristate "Renesas Window WWDT Watchdog" 1013 depends on ARCH_RENESAS || COMPILE_TEST 1014 select WATCHDOG_CORE 1015 help 1016 This driver adds watchdog support for a window timer found in some 1017 Renesas R-Car Gen3 and later SoCs. 1018 1019config RENESAS_RZAWDT 1020 tristate "Renesas RZ/A WDT Watchdog" 1021 depends on ARCH_RENESAS || COMPILE_TEST 1022 select WATCHDOG_CORE 1023 help 1024 This driver adds watchdog support for the integrated watchdogs in the 1025 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 1026 1027config RENESAS_RZN1WDT 1028 tristate "Renesas RZ/N1 watchdog" 1029 depends on ARCH_RENESAS || COMPILE_TEST 1030 select WATCHDOG_CORE 1031 help 1032 This driver adds watchdog support for the integrated watchdogs in the 1033 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 1034 1035config RENESAS_RZG2LWDT 1036 tristate "Renesas RZ/G2L WDT Watchdog" 1037 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 1038 depends on PM || COMPILE_TEST 1039 select WATCHDOG_CORE 1040 help 1041 This driver adds watchdog support for the integrated watchdogs in the 1042 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 1043 1044config RENESAS_RZV2HWDT 1045 tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog" 1046 depends on ARCH_RENESAS || COMPILE_TEST 1047 depends on PM || COMPILE_TEST 1048 select WATCHDOG_CORE 1049 help 1050 This driver adds watchdog support for the integrated watchdogs in the 1051 Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a 1052 system. 1053 1054config ASPEED_WATCHDOG 1055 tristate "Aspeed BMC watchdog support" 1056 depends on ARCH_ASPEED || COMPILE_TEST 1057 select WATCHDOG_CORE 1058 help 1059 Say Y here to include support for the watchdog timer 1060 in Aspeed BMC SoCs. 1061 1062 This driver is required to reboot the SoC. 1063 1064 To compile this driver as a module, choose M here: the 1065 module will be called aspeed_wdt. 1066 1067config STM32_WATCHDOG 1068 tristate "STM32 Independent WatchDoG (IWDG) support" 1069 depends on ARCH_STM32 || COMPILE_TEST 1070 select WATCHDOG_CORE 1071 default ARCH_STM32 1072 help 1073 Say Y here to include support for the watchdog timer 1074 in stm32 SoCs. 1075 1076 To compile this driver as a module, choose M here: the 1077 module will be called stm32_iwdg. 1078 1079config STPMIC1_WATCHDOG 1080 tristate "STPMIC1 PMIC watchdog support" 1081 depends on MFD_STPMIC1 1082 select WATCHDOG_CORE 1083 help 1084 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1085 If the watchdog timer expires, stpmic1 will shut down all its power 1086 supplies. 1087 1088 To compile this driver as a module, choose M here: the 1089 module will be called spmic1_wdt. 1090 1091config UNIPHIER_WATCHDOG 1092 tristate "UniPhier watchdog support" 1093 depends on ARCH_UNIPHIER || COMPILE_TEST 1094 depends on OF && MFD_SYSCON 1095 select WATCHDOG_CORE 1096 help 1097 Say Y here to include support watchdog timer embedded 1098 into the UniPhier system. 1099 1100 To compile this driver as a module, choose M here: the 1101 module will be called uniphier_wdt. 1102 1103config RTD119X_WATCHDOG 1104 bool "Realtek RTD119x/RTD129x watchdog support" 1105 depends on ARCH_REALTEK || COMPILE_TEST 1106 depends on OF 1107 select WATCHDOG_CORE 1108 default ARCH_REALTEK 1109 help 1110 Say Y here to include support for the watchdog timer in 1111 Realtek RTD1295 SoCs. 1112 1113config REALTEK_OTTO_WDT 1114 tristate "Realtek Otto MIPS watchdog support" 1115 depends on MACH_REALTEK_RTL || COMPILE_TEST 1116 depends on COMMON_CLK 1117 select WATCHDOG_CORE 1118 select REGMAP_MMIO 1119 default MACH_REALTEK_RTL 1120 help 1121 Say Y here to include support for the watchdog timer on Realtek 1122 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1123 notifications and system reset on timeout. 1124 1125 When built as a module this will be called realtek_otto_wdt. 1126 1127config SPRD_WATCHDOG 1128 tristate "Spreadtrum watchdog support" 1129 depends on ARCH_SPRD || COMPILE_TEST 1130 select WATCHDOG_CORE 1131 help 1132 Say Y here to include watchdog timer supported 1133 by Spreadtrum system. 1134 1135config PM8916_WATCHDOG 1136 tristate "Qualcomm PM8916 pmic watchdog" 1137 depends on OF && MFD_SPMI_PMIC 1138 select WATCHDOG_CORE 1139 help 1140 Say Y here to include support watchdog timer embedded into the 1141 pm8916 module. 1142 1143config VISCONTI_WATCHDOG 1144 tristate "Toshiba Visconti series watchdog support" 1145 depends on ARCH_VISCONTI || COMPILE_TEST 1146 select WATCHDOG_CORE 1147 help 1148 Say Y here to include support for the watchdog timer in Toshiba 1149 Visconti SoCs. 1150 1151config MSC313E_WATCHDOG 1152 tristate "MStar MSC313e watchdog" 1153 depends on ARCH_MSTARV7 || COMPILE_TEST 1154 select WATCHDOG_CORE 1155 help 1156 Say Y here to include support for the Watchdog timer embedded 1157 into MStar MSC313e chips. This will reboot your system when the 1158 timeout is reached. 1159 1160 To compile this driver as a module, choose M here: the 1161 module will be called msc313e_wdt. 1162 1163config APPLE_WATCHDOG 1164 tristate "Apple SoC watchdog" 1165 depends on ARCH_APPLE || COMPILE_TEST 1166 select WATCHDOG_CORE 1167 help 1168 Say Y here to include support for the Watchdog found in Apple 1169 SoCs such as the M1. Next to the common watchdog features this 1170 driver is also required in order to reboot these SoCs. 1171 1172 To compile this driver as a module, choose M here: the 1173 module will be called apple_wdt. 1174 1175config SUNPLUS_WATCHDOG 1176 tristate "Sunplus watchdog support" 1177 depends on ARCH_SUNPLUS || COMPILE_TEST 1178 select WATCHDOG_CORE 1179 help 1180 Say Y here to include support for the watchdog timer 1181 in Sunplus SoCs. 1182 1183 To compile this driver as a module, choose M here: the 1184 module will be called sunplus_wdt. 1185 1186# X86 (i386 + ia64 + x86_64) Architecture 1187 1188config ACQUIRE_WDT 1189 tristate "Acquire SBC Watchdog Timer" 1190 depends on X86 1191 help 1192 This is the driver for the hardware watchdog on Single Board 1193 Computers produced by Acquire Inc (and others). This watchdog 1194 simply watches your kernel to make sure it doesn't freeze, and if 1195 it does, it reboots your computer after a certain amount of time. 1196 1197 To compile this driver as a module, choose M here: the 1198 module will be called acquirewdt. 1199 1200 Most people will say N. 1201 1202config ADVANTECH_WDT 1203 tristate "Advantech SBC Watchdog Timer" 1204 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1205 help 1206 If you are configuring a Linux kernel for the Advantech single-board 1207 computer, say `Y' here to support its built-in watchdog timer 1208 feature. More information can be found at 1209 <https://www.advantech.com.tw/products/> 1210 1211config ADVANTECH_EC_WDT 1212 tristate "Advantech Embedded Controller Watchdog Timer" 1213 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1214 select ISA_BUS_API 1215 select WATCHDOG_CORE 1216 help 1217 This driver supports Advantech products with ITE based Embedded Controller. 1218 It does not support Advantech products with other ECs or without EC. 1219 1220config ALIM1535_WDT 1221 tristate "ALi M1535 PMU Watchdog Timer" 1222 depends on (X86 || COMPILE_TEST) && PCI 1223 help 1224 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1225 1226 To compile this driver as a module, choose M here: the 1227 module will be called alim1535_wdt. 1228 1229 Most people will say N. 1230 1231config ALIM7101_WDT 1232 tristate "ALi M7101 PMU Computer Watchdog" 1233 depends on PCI 1234 help 1235 This is the driver for the hardware watchdog on the ALi M7101 PMU 1236 as used in the x86 Cobalt servers and also found in some 1237 SPARC Netra servers too. 1238 1239 To compile this driver as a module, choose M here: the 1240 module will be called alim7101_wdt. 1241 1242 Most people will say N. 1243 1244config CGBC_WDT 1245 tristate "Congatec Board Controller Watchdog Timer" 1246 depends on MFD_CGBC 1247 select WATCHDOG_CORE 1248 help 1249 Enables watchdog timer support for the Congatec Board Controller. 1250 1251 This driver can also be built as a module. If so, the module will be 1252 called cgbc_wdt. 1253 1254config EBC_C384_WDT 1255 tristate "WinSystems EBC-C384 Watchdog Timer" 1256 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1257 select ISA_BUS_API 1258 select WATCHDOG_CORE 1259 help 1260 Enables watchdog timer support for the watchdog timer on the 1261 WinSystems EBC-C384 motherboard. The timeout may be configured via 1262 the timeout module parameter. 1263 1264config EXAR_WDT 1265 tristate "Exar Watchdog Timer" 1266 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1267 select WATCHDOG_CORE 1268 help 1269 Enables watchdog timer support for the watchdog timer present 1270 in some Exar/MaxLinear UART chips like the XR28V38x. 1271 1272 To compile this driver as a module, choose M here: the 1273 module will be called exar_wdt. 1274 1275config F71808E_WDT 1276 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1277 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1278 select WATCHDOG_CORE 1279 help 1280 This is the driver for the hardware watchdog on the Fintek F71808E, 1281 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1282 F81866 Super I/O controllers. 1283 1284 You can compile this driver directly into the kernel, or use 1285 it as a module. The module will be called f71808e_wdt. 1286 1287config SP5100_TCO 1288 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1289 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1290 select WATCHDOG_CORE 1291 help 1292 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1293 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1294 the machine after its expiration. The expiration time can be 1295 configured with the "heartbeat" parameter. 1296 1297 To compile this driver as a module, choose M here: the 1298 module will be called sp5100_tco. 1299 1300config GEODE_WDT 1301 tristate "AMD Geode CS5535/CS5536 Watchdog" 1302 depends on CS5535_MFGPT 1303 help 1304 This driver enables a watchdog capability built into the 1305 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1306 processors. This watchdog watches your kernel to make sure 1307 it doesn't freeze, and if it does, it reboots your computer after 1308 a certain amount of time. 1309 1310 You can compile this driver directly into the kernel, or use 1311 it as a module. The module will be called geodewdt. 1312 1313config SBC_FITPC2_WATCHDOG 1314 tristate "Compulab SBC-FITPC2 watchdog" 1315 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1316 help 1317 This is the driver for the built-in watchdog timer on the fit-PC2, 1318 fit-PC2i, CM-iAM single-board computers made by Compulab. 1319 1320 It's possible to enable the watchdog timer either from BIOS (F2) or 1321 from booted Linux. 1322 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1323 operational range. 1324 1325 Entering BIOS setup temporarily disables watchdog operation regardless 1326 of current state, so system will not be restarted while user is in 1327 BIOS setup. 1328 1329 Once the watchdog is enabled the system will be restarted every 1330 "Watchdog Timer Value" period, so to prevent it user can restart or 1331 disable the watchdog. 1332 1333 To compile this driver as a module, choose M here: the 1334 module will be called sbc_fitpc2_wdt. 1335 1336 Most people will say N. 1337 1338config EUROTECH_WDT 1339 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1340 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1341 help 1342 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1343 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1344 information are at <http://www.eurotech.it/>. 1345 1346config IB700_WDT 1347 tristate "IB700 SBC Watchdog Timer" 1348 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1349 help 1350 This is the driver for the hardware watchdog on the IB700 Single 1351 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1352 watchdog simply watches your kernel to make sure it doesn't freeze, 1353 and if it does, it reboots your computer after a certain amount of time. 1354 1355 This driver is like the WDT501 driver but for slightly different 1356 hardware. 1357 1358 To compile this driver as a module, choose M here: the 1359 module will be called ib700wdt. 1360 1361 Most people will say N. 1362 1363config IBMASR 1364 tristate "IBM Automatic Server Restart" 1365 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1366 help 1367 This is the driver for the IBM Automatic Server Restart watchdog 1368 timer built-in into some eServer xSeries machines. 1369 1370 To compile this driver as a module, choose M here: the 1371 module will be called ibmasr. 1372 1373config WAFER_WDT 1374 tristate "ICP Single Board Computer Watchdog Timer" 1375 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1376 help 1377 This is a driver for the hardware watchdog on the ICP Single 1378 Board Computer. This driver is working on (at least) the following 1379 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1380 1381 To compile this driver as a module, choose M here: the 1382 module will be called wafer5823wdt. 1383 1384config I6300ESB_WDT 1385 tristate "Intel 6300ESB Timer/Watchdog" 1386 depends on PCI 1387 select WATCHDOG_CORE 1388 help 1389 Hardware driver for the watchdog timer built into the Intel 1390 6300ESB controller hub. 1391 1392 To compile this driver as a module, choose M here: the 1393 module will be called i6300esb. 1394 1395config IE6XX_WDT 1396 tristate "Intel Atom E6xx Watchdog" 1397 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1398 select WATCHDOG_CORE 1399 select MFD_CORE 1400 select LPC_SCH 1401 help 1402 Hardware driver for the watchdog timer built into the Intel 1403 Atom E6XX (TunnelCreek) processor. 1404 1405 To compile this driver as a module, choose M here: the 1406 module will be called ie6xx_wdt. 1407 1408config INTEL_MID_WATCHDOG 1409 tristate "Intel MID Watchdog Timer" 1410 depends on X86_INTEL_MID 1411 select WATCHDOG_CORE 1412 help 1413 Watchdog timer driver built into the Intel SCU for Intel MID 1414 Platforms. 1415 1416 This driver currently supports only the watchdog evolution 1417 implementation in SCU, available for Merrifield generation. 1418 1419 To compile this driver as a module, choose M here. 1420 1421config INTEL_OC_WATCHDOG 1422 tristate "Intel OC Watchdog" 1423 depends on (X86 || COMPILE_TEST) && ACPI && HAS_IOPORT 1424 select WATCHDOG_CORE 1425 help 1426 Hardware driver for Intel Over-Clocking watchdog present in 1427 Platform Controller Hub (PCH) chipsets. 1428 1429 To compile this driver as a module, choose M here: the 1430 module will be called intel_oc_wdt. 1431 1432config ITCO_WDT 1433 tristate "Intel TCO Timer/Watchdog" 1434 depends on X86 && PCI 1435 select WATCHDOG_CORE 1436 depends on I2C || I2C=n 1437 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1438 depends on HAS_IOPORT # for I2C_I801 1439 select LPC_ICH if !EXPERT 1440 select I2C_I801 if !EXPERT && I2C 1441 help 1442 Hardware driver for the intel TCO timer based watchdog devices. 1443 These drivers are included in the Intel 82801 I/O Controller 1444 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1445 controller hub. 1446 1447 The TCO (Total Cost of Ownership) timer is a watchdog timer 1448 that will reboot the machine after its second expiration. The 1449 expiration time can be configured with the "heartbeat" parameter. 1450 1451 On some motherboards the driver may fail to reset the chipset's 1452 NO_REBOOT flag which prevents the watchdog from rebooting the 1453 machine. If this is the case you will get a kernel message like 1454 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1455 1456 To compile this driver as a module, choose M here: the 1457 module will be called iTCO_wdt. 1458 1459config IT8712F_WDT 1460 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1461 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1462 help 1463 This is the driver for the built-in watchdog timer on the IT8712F 1464 Super I/0 chipset used on many motherboards. 1465 1466 If the driver does not work, then make sure that the game port in 1467 the BIOS is enabled. 1468 1469 To compile this driver as a module, choose M here: the 1470 module will be called it8712f_wdt. 1471 1472config IT87_WDT 1473 tristate "IT87 Watchdog Timer" 1474 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1475 select WATCHDOG_CORE 1476 help 1477 This is the driver for the hardware watchdog on the ITE IT8607, 1478 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1479 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1480 IT8783 Super I/O chips. 1481 1482 This watchdog simply watches your kernel to make sure it doesn't 1483 freeze, and if it does, it reboots your computer after a certain 1484 amount of time. 1485 1486 To compile this driver as a module, choose M here: the module will 1487 be called it87_wdt. 1488 1489config HP_WATCHDOG 1490 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1491 select WATCHDOG_CORE 1492 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1493 help 1494 A software monitoring watchdog and NMI handling driver. This driver 1495 will detect lockups and provide a stack trace. This is a driver that 1496 will only load on an HP ProLiant system with a minimum of iLO2 support. 1497 To compile this driver as a module, choose M here: the module will be 1498 called hpwdt. 1499 1500config HPWDT_NMI_DECODING 1501 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1502 depends on X86 && HP_WATCHDOG 1503 default y 1504 help 1505 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1506 "Generate NMI to System" virtual button. When an NMI is claimed 1507 by the driver, panic is called. 1508 1509config KEMPLD_WDT 1510 tristate "Kontron COM Watchdog Timer" 1511 depends on MFD_KEMPLD 1512 select WATCHDOG_CORE 1513 help 1514 Support for the PLD watchdog on some Kontron ETX and COMexpress 1515 (ETXexpress) modules 1516 1517 This driver can also be built as a module. If so, the module will be 1518 called kempld_wdt. 1519 1520config SC1200_WDT 1521 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1522 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1523 help 1524 This is a driver for National Semiconductor PC87307/PC97307 hardware 1525 watchdog cards as found on the SC1200. This watchdog is mainly used 1526 for power management purposes and can be used to power down the device 1527 during inactivity periods (includes interrupt activity monitoring). 1528 1529 To compile this driver as a module, choose M here: the 1530 module will be called sc1200wdt. 1531 1532 Most people will say N. 1533 1534config SCx200_WDT 1535 tristate "National Semiconductor SCx200 Watchdog" 1536 depends on SCx200 && PCI 1537 help 1538 Enable the built-in watchdog timer support on the National 1539 Semiconductor SCx200 processors. 1540 1541 If compiled as a module, it will be called scx200_wdt. 1542 1543config PC87413_WDT 1544 tristate "NS PC87413 watchdog" 1545 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1546 help 1547 This is the driver for the hardware watchdog on the PC87413 chipset 1548 This watchdog simply watches your kernel to make sure it doesn't 1549 freeze, and if it does, it reboots your computer after a certain 1550 amount of time. 1551 1552 To compile this driver as a module, choose M here: the 1553 module will be called pc87413_wdt. 1554 1555 Most people will say N. 1556 1557config NV_TCO 1558 tristate "nVidia TCO Timer/Watchdog" 1559 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1560 help 1561 Hardware driver for the TCO timer built into the nVidia Hub family 1562 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1563 watchdog timer that will reboot the machine after its second 1564 expiration. The expiration time can be configured with the 1565 "heartbeat" parameter. 1566 1567 On some motherboards the driver may fail to reset the chipset's 1568 NO_REBOOT flag which prevents the watchdog from rebooting the 1569 machine. If this is the case you will get a kernel message like 1570 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1571 1572 To compile this driver as a module, choose M here: the 1573 module will be called nv_tco. 1574 1575config RDC321X_WDT 1576 tristate "RDC R-321x SoC watchdog" 1577 depends on X86_32 || COMPILE_TEST 1578 depends on PCI 1579 help 1580 This is the driver for the built in hardware watchdog 1581 in the RDC R-321x SoC. 1582 1583 To compile this driver as a module, choose M here: the 1584 module will be called rdc321x_wdt. 1585 1586config 60XX_WDT 1587 tristate "SBC-60XX Watchdog Timer" 1588 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1589 help 1590 This driver can be used with the watchdog timer found on some 1591 single board computers, namely the 6010 PII based computer. 1592 It may well work with other cards. It reads port 0x443 to enable 1593 and re-set the watchdog timer, and reads port 0x45 to disable 1594 the watchdog. If you have a card that behave in similar ways, 1595 you can probably make this driver work with your card as well. 1596 1597 You can compile this driver directly into the kernel, or use 1598 it as a module. The module will be called sbc60xxwdt. 1599 1600config SBC8360_WDT 1601 tristate "SBC8360 Watchdog Timer" 1602 depends on X86_32 && HAS_IOPORT 1603 help 1604 1605 This is the driver for the hardware watchdog on the SBC8360 Single 1606 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1607 1608 To compile this driver as a module, choose M here: the 1609 module will be called sbc8360. 1610 1611 Most people will say N. 1612 1613config SBC7240_WDT 1614 tristate "SBC Nano 7240 Watchdog Timer" 1615 depends on X86_32 && HAS_IOPORT 1616 help 1617 This is the driver for the hardware watchdog found on the IEI 1618 single board computers EPIC Nano 7240 (and likely others). This 1619 watchdog simply watches your kernel to make sure it doesn't freeze, 1620 and if it does, it reboots your computer after a certain amount of 1621 time. 1622 1623 To compile this driver as a module, choose M here: the 1624 module will be called sbc7240_wdt. 1625 1626config SMSC_SCH311X_WDT 1627 tristate "SMSC SCH311X Watchdog Timer" 1628 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1629 help 1630 This is the driver for the hardware watchdog timer on the 1631 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1632 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1633 serial ports). 1634 1635 To compile this driver as a module, choose M here: the 1636 module will be called sch311x_wdt. 1637 1638config SMSC37B787_WDT 1639 tristate "Winbond SMsC37B787 Watchdog Timer" 1640 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1641 help 1642 This is the driver for the hardware watchdog component on the 1643 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1644 from Vision Systems and maybe others. 1645 1646 This watchdog simply watches your kernel to make sure it doesn't 1647 freeze, and if it does, it reboots your computer after a certain 1648 amount of time. 1649 1650 Usually a userspace daemon will notify the kernel WDT driver that 1651 userspace is still alive, at regular intervals. 1652 1653 To compile this driver as a module, choose M here: the 1654 module will be called smsc37b787_wdt. 1655 1656 Most people will say N. 1657 1658config TQMX86_WDT 1659 tristate "TQ-Systems TQMX86 Watchdog Timer" 1660 depends on X86 || COMPILE_TEST 1661 select WATCHDOG_CORE 1662 help 1663 This is the driver for the hardware watchdog timer in the TQMX86 IO 1664 controller found on some of their ComExpress Modules. 1665 1666 To compile this driver as a module, choose M here; the module 1667 will be called tqmx86_wdt. 1668 1669 Most people will say N. 1670 1671config VIA_WDT 1672 tristate "VIA Watchdog Timer" 1673 depends on (X86 || COMPILE_TEST) && PCI 1674 select WATCHDOG_CORE 1675 help 1676 This is the driver for the hardware watchdog timer on VIA 1677 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1678 1679 To compile this driver as a module, choose M here; the module 1680 will be called via_wdt. 1681 1682 Most people will say N. 1683 1684config W83627HF_WDT 1685 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1686 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1687 select WATCHDOG_CORE 1688 help 1689 This is the driver for the hardware watchdog on the following 1690 Super I/O chips. 1691 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1692 W83637HF 1693 W83667HG/HG-B 1694 W83687THF 1695 W83697HF 1696 W83697UG 1697 NCT6775 1698 NCT6776 1699 NCT6779 1700 NCT6791 1701 NCT6792 1702 NCT6102D/04D/06D 1703 NCT6116D 1704 1705 This watchdog simply watches your kernel to make sure it doesn't 1706 freeze, and if it does, it reboots your computer after a certain 1707 amount of time. 1708 1709 To compile this driver as a module, choose M here: the 1710 module will be called w83627hf_wdt. 1711 1712 Most people will say N. 1713 1714config W83877F_WDT 1715 tristate "W83877F (EMACS) Watchdog Timer" 1716 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1717 help 1718 This is the driver for the hardware watchdog on the W83877F chipset 1719 as used in EMACS PC-104 motherboards (and likely others). This 1720 watchdog simply watches your kernel to make sure it doesn't freeze, 1721 and if it does, it reboots your computer after a certain amount of 1722 time. 1723 1724 To compile this driver as a module, choose M here: the 1725 module will be called w83877f_wdt. 1726 1727 Most people will say N. 1728 1729config W83977F_WDT 1730 tristate "W83977F (PCM-5335) Watchdog Timer" 1731 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1732 help 1733 This is the driver for the hardware watchdog on the W83977F I/O chip 1734 as used in AAEON's PCM-5335 SBC (and likely others). This 1735 watchdog simply watches your kernel to make sure it doesn't freeze, 1736 and if it does, it reboots your computer after a certain amount of 1737 time. 1738 1739 To compile this driver as a module, choose M here: the 1740 module will be called w83977f_wdt. 1741 1742config SBC_EPX_C3_WATCHDOG 1743 tristate "Winsystems SBC EPX-C3 watchdog" 1744 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1745 help 1746 This is the driver for the built-in watchdog timer on the EPX-C3 1747 Single-board computer made by Winsystems, Inc. 1748 1749 *Note*: This hardware watchdog is not probeable and thus there 1750 is no way to know if writing to its IO address will corrupt 1751 your system or have any real effect. The only way to be sure 1752 that this driver does what you want is to make sure you 1753 are running it on an EPX-C3 from Winsystems with the watchdog 1754 timer at IO address 0x1ee and 0x1ef. It will write to both those 1755 IO ports. Basically, the assumption is made that if you compile 1756 this driver into your kernel and/or load it as a module, that you 1757 know what you are doing and that you are in fact running on an 1758 EPX-C3 board! 1759 1760 To compile this driver as a module, choose M here: the 1761 module will be called sbc_epx_c3. 1762 1763config INTEL_MEI_WDT 1764 tristate "Intel MEI iAMT Watchdog" 1765 depends on INTEL_MEI && X86 1766 select WATCHDOG_CORE 1767 help 1768 A device driver for the Intel MEI iAMT watchdog. 1769 1770 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1771 Whenever the OS hangs or crashes, iAMT will send an event 1772 to any subscriber to this event. The watchdog doesn't reset the 1773 the platform. 1774 1775 To compile this driver as a module, choose M here: 1776 the module will be called mei_wdt. 1777 1778config NI903X_WDT 1779 tristate "NI 903x/913x Watchdog" 1780 depends on X86 && ACPI 1781 select WATCHDOG_CORE 1782 help 1783 This is the driver for the watchdog timer on the National Instruments 1784 903x/913x real-time controllers. 1785 1786 To compile this driver as a module, choose M here: the module will be 1787 called ni903x_wdt. 1788 1789config NIC7018_WDT 1790 tristate "NIC7018 Watchdog" 1791 depends on HAS_IOPORT 1792 depends on ACPI || COMPILE_TEST 1793 select WATCHDOG_CORE 1794 help 1795 Support for National Instruments NIC7018 Watchdog. 1796 1797 To compile this driver as a module, choose M here: the module will be 1798 called nic7018_wdt. 1799 1800config SIEMENS_SIMATIC_IPC_WDT 1801 tristate "Siemens Simatic IPC Watchdog" 1802 depends on SIEMENS_SIMATIC_IPC && PCI 1803 default y 1804 select WATCHDOG_CORE 1805 select P2SB if X86 1806 help 1807 This driver adds support for several watchdogs found in Industrial 1808 PCs from Siemens. 1809 1810 To compile this driver as a module, choose M here: the module will be 1811 called simatic-ipc-wdt. 1812 1813# M68K Architecture 1814 1815config M54xx_WATCHDOG 1816 tristate "MCF54xx watchdog support" 1817 depends on M548x 1818 help 1819 To compile this driver as a module, choose M here: the 1820 module will be called m54xx_wdt. 1821 1822# MicroBlaze Architecture 1823 1824# MIPS Architecture 1825 1826config ATH79_WDT 1827 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1828 depends on ATH79 || (ARM && COMPILE_TEST) 1829 help 1830 Hardware driver for the built-in watchdog timer on the Atheros 1831 AR71XX/AR724X/AR913X SoCs. 1832 1833config BCM47XX_WDT 1834 tristate "Broadcom BCM47xx Watchdog Timer" 1835 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1836 select WATCHDOG_CORE 1837 help 1838 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1839 1840config RC32434_WDT 1841 tristate "IDT RC32434 SoC Watchdog Timer" 1842 depends on MIKROTIK_RB532 1843 help 1844 Hardware driver for the IDT RC32434 SoC built-in 1845 watchdog timer. 1846 1847 To compile this driver as a module, choose M here: the 1848 module will be called rc32434_wdt. 1849 1850config INDYDOG 1851 tristate "Indy/I2 Hardware Watchdog" 1852 depends on SGI_HAS_INDYDOG 1853 help 1854 Hardware driver for the Indy's/I2's watchdog. This is a 1855 watchdog timer that will reboot the machine after a 60 second 1856 timer expired and no process has written to /dev/watchdog during 1857 that time. 1858 1859config JZ4740_WDT 1860 tristate "Ingenic jz4740 SoC hardware watchdog" 1861 depends on MIPS || COMPILE_TEST 1862 depends on COMMON_CLK 1863 select WATCHDOG_CORE 1864 select MFD_SYSCON 1865 help 1866 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1867 1868config WDT_MTX1 1869 tristate "MTX-1 Hardware Watchdog" 1870 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1871 help 1872 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1873 will reboot the machine after a 100 seconds timer expired. 1874 1875config SIBYTE_WDOG 1876 tristate "Sibyte SoC hardware watchdog" 1877 depends on CPU_SB1 1878 help 1879 Watchdog driver for the built in watchdog hardware in Sibyte 1880 SoC processors. There are apparently two watchdog timers 1881 on such processors; this driver supports only the first one, 1882 because currently Linux only supports exporting one watchdog 1883 to userspace. 1884 1885 To compile this driver as a loadable module, choose M here. 1886 The module will be called sb_wdog. 1887 1888config TXX9_WDT 1889 tristate "Toshiba TXx9 Watchdog Timer" 1890 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1891 select WATCHDOG_CORE 1892 help 1893 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1894 1895config OCTEON_WDT 1896 tristate "Cavium OCTEON SOC family Watchdog Timer" 1897 depends on CAVIUM_OCTEON_SOC 1898 default y 1899 select WATCHDOG_CORE 1900 select EXPORT_UASM if OCTEON_WDT = m 1901 help 1902 Hardware driver for OCTEON's on chip watchdog timer. 1903 Enables the watchdog for all cores running Linux. It 1904 installs a NMI handler and pokes the watchdog based on an 1905 interrupt. On first expiration of the watchdog, the 1906 interrupt handler pokes it. The second expiration causes an 1907 NMI that prints a message. The third expiration causes a 1908 global soft reset. 1909 1910 When userspace has /dev/watchdog open, no poking is done 1911 from the first interrupt, it is then only poked when the 1912 device is written. 1913 1914config MARVELL_GTI_WDT 1915 tristate "Marvell GTI Watchdog driver" 1916 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1917 default ARCH_THUNDER 1918 select WATCHDOG_CORE 1919 help 1920 Marvell GTI hardware supports watchdog timer. First timeout 1921 works as watchdog pretimeout and installed interrupt handler 1922 will be called on first timeout. Hardware can generate interrupt 1923 to SCP on second timeout but it is not enabled, so second 1924 timeout is ignored. If device poke does not happen then system 1925 will reboot on third timeout. 1926 1927config BCM2835_WDT 1928 tristate "Broadcom BCM2835 hardware watchdog" 1929 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1930 select WATCHDOG_CORE 1931 help 1932 Watchdog driver for the built in watchdog hardware in Broadcom 1933 BCM2835 SoC. 1934 1935 To compile this driver as a loadable module, choose M here. 1936 The module will be called bcm2835_wdt. 1937 1938config BCM_KONA_WDT 1939 tristate "BCM Kona Watchdog" 1940 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1941 select WATCHDOG_CORE 1942 help 1943 Support for the watchdog timer on the following Broadcom BCM281xx 1944 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1945 BCM28155 variants. 1946 1947 Say 'Y' or 'M' here to enable the driver. The module will be called 1948 bcm_kona_wdt. 1949 1950config BCM_KONA_WDT_DEBUG 1951 bool "DEBUGFS support for BCM Kona Watchdog" 1952 depends on BCM_KONA_WDT || COMPILE_TEST 1953 help 1954 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1955 access to the driver's internal data structures as well as watchdog 1956 timer hardware registres. 1957 1958 If in doubt, say 'N'. 1959 1960config BCM7038_WDT 1961 tristate "BCM63xx/BCM7038 Watchdog" 1962 select WATCHDOG_CORE 1963 depends on HAS_IOMEM 1964 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1965 help 1966 Watchdog driver for the built-in hardware in Broadcom 7038 and 1967 later SoCs used in set-top boxes. BCM7038 was made public 1968 during the 2004 CES, and since then, many Broadcom chips use this 1969 watchdog block, including some cable modem chips and DSL (63xx) 1970 chips. 1971 1972config IMGPDC_WDT 1973 tristate "Imagination Technologies PDC Watchdog Timer" 1974 depends on HAS_IOMEM 1975 depends on MIPS || COMPILE_TEST 1976 select WATCHDOG_CORE 1977 help 1978 Driver for Imagination Technologies PowerDown Controller 1979 Watchdog Timer. 1980 1981 To compile this driver as a loadable module, choose M here. 1982 The module will be called imgpdc_wdt. 1983 1984config LANTIQ_WDT 1985 tristate "Lantiq SoC watchdog" 1986 depends on LANTIQ 1987 select WATCHDOG_CORE 1988 help 1989 Hardware driver for the Lantiq SoC Watchdog Timer. 1990 1991config LOONGSON1_WDT 1992 tristate "Loongson1 SoC hardware watchdog" 1993 depends on MACH_LOONGSON32 || MACH_LOONGSON64 || COMPILE_TEST 1994 select WATCHDOG_CORE 1995 help 1996 Hardware driver for the Loongson family Watchdog Timer. 1997 1998config RALINK_WDT 1999 tristate "Ralink SoC watchdog" 2000 select WATCHDOG_CORE 2001 depends on RALINK 2002 help 2003 Hardware driver for the Ralink SoC Watchdog Timer. 2004 2005config GXP_WATCHDOG 2006 tristate "HPE GXP watchdog support" 2007 depends on ARCH_HPE_GXP || COMPILE_TEST 2008 select WATCHDOG_CORE 2009 help 2010 Say Y here to include support for the watchdog timer 2011 in HPE GXP SoCs. 2012 2013 To compile this driver as a module, choose M here. 2014 The module will be called gxp-wdt. 2015 2016config MT7621_WDT 2017 tristate "Mediatek SoC watchdog" 2018 select WATCHDOG_CORE 2019 select REGMAP_MMIO 2020 select MFD_SYSCON 2021 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 2022 help 2023 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 2024 2025config PIC32_WDT 2026 tristate "Microchip PIC32 hardware watchdog" 2027 select WATCHDOG_CORE 2028 depends on MACH_PIC32 || COMPILE_TEST 2029 help 2030 Watchdog driver for the built in watchdog hardware in a PIC32. 2031 2032 Configuration bits must be set appropriately for the watchdog to be 2033 controlled by this driver. 2034 2035 To compile this driver as a loadable module, choose M here. 2036 The module will be called pic32-wdt. 2037 2038config PIC32_DMT 2039 tristate "Microchip PIC32 Deadman Timer" 2040 select WATCHDOG_CORE 2041 depends on MACH_PIC32 || COMPILE_TEST 2042 help 2043 Watchdog driver for PIC32 instruction fetch counting timer. This 2044 specific timer is typically be used in mission critical and safety 2045 critical applications, where any single failure of the software 2046 functionality and sequencing must be detected. 2047 2048 To compile this driver as a loadable module, choose M here. 2049 The module will be called pic32-dmt. 2050 2051# PARISC Architecture 2052 2053# POWERPC Architecture 2054 2055config GEF_WDT 2056 tristate "GE Watchdog Timer" 2057 depends on GE_FPGA 2058 help 2059 Watchdog timer found in a number of GE single board computers. 2060 2061config MPC5200_WDT 2062 bool "MPC52xx Watchdog Timer" 2063 depends on PPC_MPC52xx || COMPILE_TEST 2064 help 2065 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2066 2067config 8xxx_WDT 2068 tristate "MPC8xxx Platform Watchdog Timer" 2069 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2070 select WATCHDOG_CORE 2071 help 2072 This driver is for a SoC level watchdog that exists on some 2073 Freescale PowerPC processors. So far this driver supports: 2074 - MPC8xx watchdogs 2075 - MPC83xx watchdogs 2076 - MPC86xx watchdogs 2077 2078 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2079 2080config PIKA_WDT 2081 tristate "PIKA FPGA Watchdog" 2082 depends on WARP || (PPC64 && COMPILE_TEST) 2083 default WARP 2084 help 2085 This enables the watchdog in the PIKA FPGA. Currently used on 2086 the Warp platform. 2087 2088config BOOKE_WDT 2089 tristate "PowerPC Book-E Watchdog Timer" 2090 depends on BOOKE || 4xx 2091 select WATCHDOG_CORE 2092 help 2093 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2094 MPC85xx SOCs and the IBM PowerPC 440. 2095 2096 Please see Documentation/watchdog/watchdog-api.rst for 2097 more information. 2098 2099config BOOKE_WDT_DEFAULT_TIMEOUT 2100 int "PowerPC Book-E Watchdog Timer Default Timeout" 2101 depends on BOOKE_WDT 2102 default 38 if PPC_E500 2103 range 0 63 if PPC_E500 2104 default 3 if !PPC_E500 2105 range 0 3 if !PPC_E500 2106 help 2107 Select the default watchdog timer period to be used by the PowerPC 2108 Book-E watchdog driver. A watchdog "event" occurs when the bit 2109 position represented by this number transitions from zero to one. 2110 2111 For Freescale Book-E processors, this is a number between 0 and 63. 2112 For other Book-E processors, this is a number between 0 and 3. 2113 2114 The value can be overridden by the wdt_period command-line parameter. 2115 2116config MEN_A21_WDT 2117 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2118 select WATCHDOG_CORE 2119 depends on GPIOLIB || COMPILE_TEST 2120 help 2121 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2122 2123 The driver can also be built as a module. If so, the module will be 2124 called mena21_wdt. 2125 2126 If unsure select N here. 2127 2128# PPC64 Architecture 2129 2130config PSERIES_WDT 2131 tristate "POWER Architecture Platform Watchdog Timer" 2132 depends on PPC_PSERIES 2133 select WATCHDOG_CORE 2134 help 2135 Driver for virtual watchdog timers provided by PAPR 2136 hypervisors (e.g. PowerVM, KVM). 2137 2138config WATCHDOG_RTAS 2139 tristate "RTAS watchdog" 2140 depends on PPC_RTAS 2141 help 2142 This driver adds watchdog support for the RTAS watchdog. 2143 2144 To compile this driver as a module, choose M here. The module 2145 will be called wdrtas. 2146 2147# RISC-V Architecture 2148 2149config ATCWDT200_WATCHDOG 2150 tristate "Andes ATCWDT200 Watchdog support" 2151 depends on ARCH_ANDES || COMPILE_TEST 2152 help 2153 Driver for the Andes ATCWDT200 watchdog timer. It provides access to 2154 programmable reset and interrupt counters with clock-source dependent 2155 timing. The driver automatically detects the supported IntTime bit-width 2156 and is fully integrated with the Linux Watchdog Framework. 2157 2158config STARFIVE_WATCHDOG 2159 tristate "StarFive Watchdog support" 2160 depends on ARCH_STARFIVE || COMPILE_TEST 2161 select WATCHDOG_CORE 2162 default ARCH_STARFIVE 2163 help 2164 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2165 SoC. This driver can also be built as a module if choose M. 2166 2167# S390 Architecture 2168 2169config DIAG288_WATCHDOG 2170 tristate "System z diag288 Watchdog" 2171 depends on S390 2172 select WATCHDOG_CORE 2173 help 2174 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2175 provide a virtual watchdog timer to their guest that cause a 2176 user define Control Program command to be executed after a 2177 timeout. 2178 LPAR provides a very similar interface. This driver handles 2179 both. 2180 2181 To compile this driver as a module, choose M here. The module 2182 will be called diag288_wdt. 2183 2184# SUPERH (sh + sh64) Architecture 2185 2186config SH_WDT 2187 tristate "SuperH Watchdog" 2188 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2189 select WATCHDOG_CORE 2190 help 2191 This driver adds watchdog support for the integrated watchdog in the 2192 SuperH processors. If you have one of these processors and wish 2193 to have watchdog support enabled, say Y, otherwise say N. 2194 2195 As a side note, saying Y here will automatically boost HZ to 1000 2196 so that the timer has a chance to clear the overflow counter. On 2197 slower systems (such as the SH-2 and SH-3) this will likely yield 2198 some performance issues. As such, the WDT should be avoided here 2199 unless it is absolutely necessary. 2200 2201 To compile this driver as a module, choose M here: the 2202 module will be called shwdt. 2203 2204# SPARC Architecture 2205 2206# SPARC64 Architecture 2207 2208config WATCHDOG_CP1XXX 2209 tristate "CP1XXX Hardware Watchdog support" 2210 depends on SPARC64 && PCI 2211 help 2212 This is the driver for the hardware watchdog timers present on 2213 Sun Microsystems CompactPCI models CP1400 and CP1500. 2214 2215 To compile this driver as a module, choose M here: the 2216 module will be called cpwatchdog. 2217 2218 If you do not have a CompactPCI model CP1400 or CP1500, or 2219 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2220 you should say N to this option. 2221 2222config WATCHDOG_RIO 2223 tristate "RIO Hardware Watchdog support" 2224 depends on SPARC64 && PCI 2225 help 2226 Say Y here to support the hardware watchdog capability on Sun RIO 2227 machines. The watchdog timeout period is normally one minute but 2228 can be changed with a boot-time parameter. 2229 2230config WATCHDOG_SUN4V 2231 tristate "Sun4v Watchdog support" 2232 select WATCHDOG_CORE 2233 depends on SPARC64 2234 help 2235 Say Y here to support the hypervisor watchdog capability embedded 2236 in the SPARC sun4v architecture. 2237 2238 To compile this driver as a module, choose M here. The module will 2239 be called sun4v_wdt. 2240 2241# XTENSA Architecture 2242 2243# Xen Architecture 2244 2245config XEN_WDT 2246 tristate "Xen Watchdog support" 2247 depends on XEN 2248 select WATCHDOG_CORE 2249 help 2250 Say Y here to support the hypervisor watchdog capability provided 2251 by Xen 4.0 and newer. The watchdog timeout period is normally one 2252 minute but can be changed with a boot-time parameter. 2253 2254config UML_WATCHDOG 2255 tristate "UML watchdog" 2256 depends on UML || COMPILE_TEST 2257 2258# 2259# ISA-based Watchdog Cards 2260# 2261 2262comment "ISA-based Watchdog Cards" 2263 depends on ISA 2264 2265config PCWATCHDOG 2266 tristate "Berkshire Products ISA-PC Watchdog" 2267 depends on ISA 2268 help 2269 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2270 This card simply watches your kernel to make sure it doesn't freeze, 2271 and if it does, it reboots your computer after a certain amount of 2272 time. This driver is like the WDT501 driver but for different 2273 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2274 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2275 2276 To compile this driver as a module, choose M here: the 2277 module will be called pcwd. 2278 2279 Most people will say N. 2280 2281config MIXCOMWD 2282 tristate "Mixcom Watchdog" 2283 depends on ISA 2284 help 2285 This is a driver for the Mixcom hardware watchdog cards. This 2286 watchdog simply watches your kernel to make sure it doesn't freeze, 2287 and if it does, it reboots your computer after a certain amount of 2288 time. 2289 2290 To compile this driver as a module, choose M here: the 2291 module will be called mixcomwd. 2292 2293 Most people will say N. 2294 2295config WDT 2296 tristate "ICS WDT500P/501P Watchdog timer" 2297 depends on ISA 2298 help 2299 If you have an Industrial Computer Source (ICS) WDT500P or WDT501P 2300 watchdog board, say Y here, 2301 otherwise N. It is not possible to probe for this board, which means 2302 that you have to inform the kernel about the IO port and IRQ that 2303 is needed (you can do this via the io and irq parameters) 2304 2305 To compile this driver as a module, choose M here: the 2306 module will be called wdt. 2307 2308# 2309# PCI-based Watchdog Cards 2310# 2311 2312comment "PCI-based Watchdog Cards" 2313 depends on PCI 2314 2315config PCIPCWATCHDOG 2316 tristate "Berkshire Products PCI-PC Watchdog" 2317 depends on PCI && HAS_IOPORT 2318 help 2319 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2320 This card simply watches your kernel to make sure it doesn't freeze, 2321 and if it does, it reboots your computer after a certain amount of 2322 time. The card can also monitor the internal temperature of the PC. 2323 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2324 2325 To compile this driver as a module, choose M here: the 2326 module will be called pcwd_pci. 2327 2328 Most people will say N. 2329 2330config WDTPCI 2331 tristate "ICS PCI-WDT500/501 Watchdog timer" 2332 depends on PCI && HAS_IOPORT 2333 help 2334 If you have an Industrial Computer Source (ICS) PCI-WDT500/501 watchdog 2335 board, say Y here, otherwise N. 2336 2337 If you have a PCI-WDT501 watchdog board then you can enable the 2338 temperature sensor by setting the type parameter to 501. 2339 2340 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2341 can do this via the tachometer parameter. Only do this if you have a 2342 fan tachometer actually set up. 2343 2344 To compile this driver as a module, choose M here: the 2345 module will be called wdt_pci. 2346 2347# 2348# USB-based Watchdog Cards 2349# 2350 2351comment "USB-based Watchdog Cards" 2352 depends on USB 2353 2354config USBPCWATCHDOG 2355 tristate "Berkshire Products USB-PC Watchdog" 2356 depends on USB 2357 help 2358 This is the driver for the Berkshire Products USB-PC Watchdog card. 2359 This card simply watches your kernel to make sure it doesn't freeze, 2360 and if it does, it reboots your computer after a certain amount of 2361 time. The card can also monitor the internal temperature of the PC. 2362 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2363 2364 To compile this driver as a module, choose M here: the 2365 module will be called pcwd_usb. 2366 2367 Most people will say N. 2368 2369config KEEMBAY_WATCHDOG 2370 tristate "Intel Keem Bay SoC non-secure watchdog" 2371 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2372 select WATCHDOG_CORE 2373 help 2374 This option enable support for an In-secure watchdog timer driver for 2375 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2376 count unit. An interrupt will be triggered, when the count crosses 2377 the threshold configured in the register. 2378 2379 To compile this driver as a module, choose M here: the 2380 module will be called keembay_wdt. 2381 2382config GUNYAH_WATCHDOG 2383 tristate "Qualcomm Gunyah Watchdog" 2384 depends on ARCH_QCOM || COMPILE_TEST 2385 depends on HAVE_ARM_SMCCC 2386 select WATCHDOG_CORE 2387 help 2388 Say Y here to include support for watchdog timer provided by the 2389 Gunyah hypervisor. The driver uses ARM SMC Calling Convention (SMCCC) 2390 to interact with Gunyah Watchdog. 2391 2392 To compile this driver as a module, choose M here: the 2393 module will be called gunyah_wdt. 2394 2395endif # WATCHDOG 2396