1# SPDX-License-Identifier: GPL-2.0-only 2 3# 4# Watchdog device configuration 5# 6 7menuconfig WATCHDOG 8 bool "Watchdog Timer Support" 9 help 10 If you say Y here (and to one of the following options) and create a 11 character special file /dev/watchdog with major number 10 and minor 12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 13 subsequently opening the file and then failing to write to it for 14 longer than 1 minute will result in rebooting the machine. This 15 could be useful for a networked machine that needs to come back 16 on-line as fast as possible after a lock-up. There's both a watchdog 17 implementation entirely in software (which can sometimes fail to 18 reboot the machine) and a driver for hardware watchdog boards, which 19 are more robust and can also keep track of the temperature inside 20 your computer. For details, read 21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source. 22 23 The watchdog is usually used together with the watchdog daemon 24 which is available from 25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon 26 can also monitor NFS connections and can reboot the machine when the 27 process table is full. 28 29 If unsure, say N. 30 31if WATCHDOG 32 33config WATCHDOG_CORE 34 tristate "WatchDog Timer Driver Core" 35 help 36 Say Y here if you want to use the new watchdog timer driver core. 37 This driver provides a framework for all watchdog timer drivers 38 and gives them the /dev/watchdog interface (and later also the 39 sysfs interface). 40 41config WATCHDOG_NOWAYOUT 42 bool "Disable watchdog shutdown on close" 43 help 44 The default watchdog behaviour (which you get if you say N here) is 45 to stop the timer if the process managing it closes the file 46 /dev/watchdog. It's always remotely possible that this process might 47 get killed. If you say Y here, the watchdog cannot be stopped once 48 it has been started. 49 50config WATCHDOG_HANDLE_BOOT_ENABLED 51 bool "Update boot-enabled watchdog until userspace takes over" 52 default y 53 help 54 The default watchdog behaviour (which you get if you say Y here) is 55 to ping watchdog devices that were enabled before the driver has 56 been loaded until control is taken over from userspace using the 57 /dev/watchdog file. If you say N here, the kernel will not update 58 the watchdog on its own. Thus if your userspace does not start fast 59 enough your device will reboot. 60 61config WATCHDOG_OPEN_TIMEOUT 62 int "Timeout value for opening watchdog device" 63 default 0 64 help 65 The maximum time, in seconds, for which the watchdog framework takes 66 care of pinging a hardware watchdog. A value of 0 means infinite. The 67 value set here can be overridden by the commandline parameter 68 "watchdog.open_timeout". 69 70config WATCHDOG_SYSFS 71 bool "Read different watchdog information through sysfs" 72 help 73 Say Y here if you want to enable watchdog device status read through 74 sysfs attributes. 75 76config WATCHDOG_HRTIMER_PRETIMEOUT 77 bool "Enable watchdog hrtimer-based pretimeouts" 78 help 79 Enable this if you want to use a hrtimer timer based pretimeout for 80 watchdogs that do not natively support pretimeout support. Be aware 81 that because this pretimeout functionality uses hrtimers, it may not 82 be able to fire before the actual watchdog fires in some situations. 83 84comment "Watchdog Pretimeout Governors" 85 86config WATCHDOG_PRETIMEOUT_GOV 87 bool "Enable watchdog pretimeout governors" 88 depends on WATCHDOG_CORE 89 help 90 The option allows to select watchdog pretimeout governors. 91 92config WATCHDOG_PRETIMEOUT_GOV_SEL 93 tristate 94 depends on WATCHDOG_PRETIMEOUT_GOV 95 default m 96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 97 98if WATCHDOG_PRETIMEOUT_GOV 99 100config WATCHDOG_PRETIMEOUT_GOV_NOOP 101 tristate "Noop watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Noop watchdog pretimeout governor, only an informational 106 message is added to kernel log buffer. 107 108config WATCHDOG_PRETIMEOUT_GOV_PANIC 109 tristate "Panic watchdog pretimeout governor" 110 depends on WATCHDOG_CORE 111 default WATCHDOG_CORE 112 help 113 Panic watchdog pretimeout governor, on watchdog pretimeout 114 event put the kernel into panic. 115 116choice 117 prompt "Default Watchdog Pretimeout Governor" 118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 119 help 120 This option selects a default watchdog pretimeout governor. 121 The governor takes its action, if a watchdog is capable 122 to report a pretimeout event. 123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 125 bool "noop" 126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 127 help 128 Use noop watchdog pretimeout governor by default. If noop 129 governor is selected by a user, write a short message to 130 the kernel log buffer and don't do any system changes. 131 132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 133 bool "panic" 134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 135 help 136 Use panic watchdog pretimeout governor by default, if 137 a watchdog pretimeout event happens, consider that 138 a watchdog feeder is dead and reboot is unavoidable. 139 140endchoice 141 142endif # WATCHDOG_PRETIMEOUT_GOV 143 144# 145# General Watchdog drivers 146# 147 148comment "Watchdog Device Drivers" 149 150# Architecture Independent 151 152config SOFT_WATCHDOG 153 tristate "Software watchdog" 154 select WATCHDOG_CORE 155 help 156 A software monitoring watchdog. This will fail to reboot your system 157 from some situations that the hardware watchdog will recover 158 from. Equally it's a lot cheaper to install. 159 160 To compile this driver as a module, choose M here: the 161 module will be called softdog. 162 163config SOFT_WATCHDOG_PRETIMEOUT 164 bool "Software watchdog pretimeout governor support" 165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 166 help 167 Enable this if you want to use pretimeout governors with the software 168 watchdog. Be aware that governors might affect the watchdog because it 169 is purely software, e.g. the panic governor will stall it! 170 171config BD957XMUF_WATCHDOG 172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 173 depends on MFD_ROHM_BD957XMUF 174 select WATCHDOG_CORE 175 help 176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 177 These PMIC ICs contain watchdog block which can be configured 178 to toggle reset line if SoC fails to ping watchdog via GPIO. 179 180 Say Y here to include support for the ROHM BD9576 or BD9573 181 watchdog. Alternatively say M to compile the driver as a module, 182 which will be called bd9576_wdt. 183 184config BD96801_WATCHDOG 185 tristate "ROHM BD96801 PMIC Watchdog" 186 depends on MFD_ROHM_BD96801 187 select WATCHDOG_CORE 188 help 189 Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be 190 configured to only generate IRQ or to trigger system reset via reset 191 pin. 192 193 Say Y here to include support for the ROHM BD96801 watchdog. 194 Alternatively say M to compile the driver as a module, 195 which will be called bd96801_wdt. 196 197config CROS_EC_WATCHDOG 198 tristate "ChromeOS EC-based watchdog" 199 select WATCHDOG_CORE 200 depends on CROS_EC 201 help 202 Watchdog driver for Chromebook devices equipped with embedded controller. 203 Trigger event is recorded in EC and checked on the subsequent boot. 204 205 To compile this driver as a module, choose M here: the 206 module will be called cros_ec_wdt. 207 208config DA9052_WATCHDOG 209 tristate "Dialog DA9052 Watchdog" 210 depends on PMIC_DA9052 || COMPILE_TEST 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 214 cause system reset. 215 216 Say Y here to include support for the DA9052 watchdog. 217 Alternatively say M to compile the driver as a module, 218 which will be called da9052_wdt. 219 220config DA9055_WATCHDOG 221 tristate "Dialog Semiconductor DA9055 Watchdog" 222 depends on MFD_DA9055 || COMPILE_TEST 223 select WATCHDOG_CORE 224 help 225 If you say yes here you get support for watchdog on the Dialog 226 Semiconductor DA9055 PMIC. 227 228 This driver can also be built as a module. If so, the module 229 will be called da9055_wdt. 230 231config DA9063_WATCHDOG 232 tristate "Dialog DA9063 Watchdog" 233 depends on MFD_DA9063 || COMPILE_TEST 234 depends on I2C 235 select WATCHDOG_CORE 236 help 237 Support for the watchdog in the DA9063 PMIC. 238 239 This driver can be built as a module. The module name is da9063_wdt. 240 241config DA9062_WATCHDOG 242 tristate "Dialog DA9062/61 Watchdog" 243 depends on MFD_DA9062 || COMPILE_TEST 244 depends on I2C 245 select WATCHDOG_CORE 246 help 247 Support for the watchdog in the DA9062 and DA9061 PMICs. 248 249 This driver can be built as a module. The module name is da9062_wdt. 250 251config GPIO_WATCHDOG 252 tristate "Watchdog device controlled through GPIO-line" 253 depends on OF_GPIO 254 select WATCHDOG_CORE 255 help 256 If you say yes here you get support for watchdog device 257 controlled through GPIO-line. 258 259config GPIO_WATCHDOG_ARCH_INITCALL 260 bool "Register the watchdog as early as possible" 261 depends on GPIO_WATCHDOG=y 262 help 263 In some situations, the default initcall level (module_init) 264 in not early enough in the boot process to avoid the watchdog 265 to be triggered. 266 If you say yes here, the initcall level would be raised to 267 arch_initcall. 268 If in doubt, say N. 269 270config LENOVO_SE10_WDT 271 tristate "Lenovo SE10 Watchdog" 272 depends on (X86 && DMI) || COMPILE_TEST 273 depends on HAS_IOPORT 274 select WATCHDOG_CORE 275 help 276 If you say yes here you get support for the watchdog 277 functionality for the Lenovo SE10 platform. 278 279 This driver can also be built as a module. If so, the module 280 will be called lenovo-se10-wdt. 281 282config LENOVO_SE30_WDT 283 tristate "Lenovo SE30 Watchdog" 284 depends on (X86 && DMI) || COMPILE_TEST 285 depends on HAS_IOPORT 286 select WATCHDOG_CORE 287 help 288 If you say yes here you get support for the watchdog 289 functionality for the Lenovo SE30 platform. 290 291 This driver can also be built as a module. If so, the module 292 will be called lenovo-se30-wdt. 293 294config MENF21BMC_WATCHDOG 295 tristate "MEN 14F021P00 BMC Watchdog" 296 depends on MFD_MENF21BMC || COMPILE_TEST 297 depends on I2C 298 select WATCHDOG_CORE 299 help 300 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 301 302 This driver can also be built as a module. If so the module 303 will be called menf21bmc_wdt. 304 305config MENZ069_WATCHDOG 306 tristate "MEN 16Z069 Watchdog" 307 depends on MCB 308 select WATCHDOG_CORE 309 help 310 Say Y here to include support for the MEN 16Z069 Watchdog. 311 312 This driver can also be built as a module. If so the module 313 will be called menz069_wdt. 314 315config WDAT_WDT 316 tristate "ACPI Watchdog Action Table (WDAT)" 317 depends on ACPI 318 select WATCHDOG_CORE 319 select ACPI_WATCHDOG 320 help 321 This driver adds support for systems with ACPI Watchdog Action 322 Table (WDAT) table. Servers typically have this but it can be 323 found on some desktop machines as well. This driver will take 324 over the native iTCO watchdog driver found on many Intel CPUs. 325 326 To compile this driver as module, choose M here: the module will 327 be called wdat_wdt. 328 329config WM831X_WATCHDOG 330 tristate "WM831x watchdog" 331 depends on MFD_WM831X 332 select WATCHDOG_CORE 333 help 334 Support for the watchdog in the WM831x AudioPlus PMICs. When 335 the watchdog triggers the system will be reset. 336 337config WM8350_WATCHDOG 338 tristate "WM8350 watchdog" 339 depends on MFD_WM8350 340 select WATCHDOG_CORE 341 help 342 Support for the watchdog in the WM8350 AudioPlus PMIC. When 343 the watchdog triggers the system will be reset. 344 345config XILINX_WATCHDOG 346 tristate "Xilinx Watchdog timer" 347 depends on HAS_IOMEM 348 select WATCHDOG_CORE 349 help 350 Watchdog driver for the xps_timebase_wdt IP core. 351 352 To compile this driver as a module, choose M here: the 353 module will be called of_xilinx_wdt. 354 355config XILINX_WINDOW_WATCHDOG 356 tristate "Xilinx window watchdog timer" 357 depends on HAS_IOMEM 358 depends on ARM64 || COMPILE_TEST 359 select WATCHDOG_CORE 360 help 361 Window watchdog driver for the versal_wwdt IP core. 362 Window watchdog timer(WWDT) contains closed(first) and 363 open(second) window with 32 bit width. Write to the watchdog 364 timer within predefined window periods of time. This means 365 a period that is not too soon and a period that is not too 366 late. The WWDT has to be restarted within the open window time. 367 If software tries to restart WWDT outside of the open window 368 time period, it generates a reset. 369 370 To compile this driver as a module, choose M here: the 371 module will be called xilinx_wwdt. 372 373config ZIIRAVE_WATCHDOG 374 tristate "Zodiac RAVE Watchdog Timer" 375 depends on I2C 376 select WATCHDOG_CORE 377 help 378 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 379 Processor. 380 381 To compile this driver as a module, choose M here: the 382 module will be called ziirave_wdt. 383 384config RAVE_SP_WATCHDOG 385 tristate "RAVE SP Watchdog timer" 386 depends on RAVE_SP_CORE 387 depends on NVMEM || !NVMEM 388 select WATCHDOG_CORE 389 help 390 Support for the watchdog on RAVE SP device. 391 392config MLX_WDT 393 tristate "Mellanox Watchdog" 394 depends on MELLANOX_PLATFORM || COMPILE_TEST 395 select WATCHDOG_CORE 396 select REGMAP 397 help 398 This is the driver for the hardware watchdog on Mellanox systems. 399 If you are going to use it, say Y here, otherwise N. 400 This driver can be used together with the watchdog daemon. 401 It can also watch your kernel to make sure it doesn't freeze, 402 and if it does, it reboots your system after a certain amount of 403 time. 404 405 To compile this driver as a module, choose M here: the 406 module will be called mlx-wdt. 407 408config SL28CPLD_WATCHDOG 409 tristate "Kontron sl28cpld Watchdog" 410 depends on MFD_SL28CPLD || COMPILE_TEST 411 select WATCHDOG_CORE 412 help 413 Say Y here to include support for the watchdog timer 414 on the Kontron sl28 CPLD. 415 416 To compile this driver as a module, choose M here: the 417 module will be called sl28cpld_wdt. 418 419# ALPHA Architecture 420 421# ARM Architecture 422 423config AIROHA_WATCHDOG 424 tristate "Airoha EN7581 Watchdog" 425 depends on ARCH_AIROHA || COMPILE_TEST 426 select WATCHDOG_CORE 427 help 428 Watchdog timer embedded into Airoha SoC. This will reboot your 429 system when the timeout is reached. 430 431config ARM_SP805_WATCHDOG 432 tristate "ARM SP805 Watchdog" 433 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 434 select WATCHDOG_CORE 435 help 436 ARM Primecell SP805 Watchdog timer. This will reboot your system when 437 the timeout is reached. 438 439config ARM_SBSA_WATCHDOG 440 tristate "ARM SBSA Generic Watchdog" 441 depends on ARM64 442 depends on ARM_ARCH_TIMER 443 select WATCHDOG_CORE 444 help 445 ARM SBSA Generic Watchdog has two stage timeouts: 446 the first signal (WS0) is for alerting the system by interrupt, 447 the second one (WS1) is a real hardware reset. 448 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 449 450 This driver can operate ARM SBSA Generic Watchdog as a single stage 451 or a two stages watchdog, it depends on the module parameter "action". 452 453 Note: the maximum timeout in the two stages mode is half of that in 454 the single stage mode. 455 456 To compile this driver as module, choose M here: The module 457 will be called sbsa_gwdt. 458 459config ARMADA_37XX_WATCHDOG 460 tristate "Armada 37xx watchdog" 461 depends on ARCH_MVEBU || COMPILE_TEST 462 depends on HAS_IOMEM 463 select MFD_SYSCON 464 select WATCHDOG_CORE 465 help 466 Say Y here to include support for the watchdog timer found on 467 Marvell Armada 37xx SoCs. 468 To compile this driver as a module, choose M here: the 469 module will be called armada_37xx_wdt. 470 471config ASM9260_WATCHDOG 472 tristate "Alphascale ASM9260 watchdog" 473 depends on MACH_ASM9260 || COMPILE_TEST 474 depends on OF 475 select WATCHDOG_CORE 476 select RESET_CONTROLLER 477 help 478 Watchdog timer embedded into Alphascale asm9260 chips. This will 479 reboot your system when the timeout is reached. 480 481config AT91RM9200_WATCHDOG 482 tristate "AT91RM9200 watchdog" 483 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 484 help 485 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 486 system when the timeout is reached. 487 488config AT91SAM9X_WATCHDOG 489 tristate "AT91SAM9X / AT91CAP9 watchdog" 490 depends on ARCH_AT91 || COMPILE_TEST 491 select WATCHDOG_CORE 492 help 493 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 494 reboot your system when the timeout is reached. 495 496config SAMA5D4_WATCHDOG 497 tristate "Atmel SAMA5D4 Watchdog Timer" 498 depends on ARCH_AT91 || COMPILE_TEST 499 select WATCHDOG_CORE 500 help 501 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 502 Its Watchdog Timer Mode Register can be written more than once. 503 This will reboot your system when the timeout is reached. 504 505config CADENCE_WATCHDOG 506 tristate "Cadence Watchdog Timer" 507 depends on HAS_IOMEM 508 select WATCHDOG_CORE 509 help 510 Say Y here if you want to include support for the watchdog 511 timer in the Xilinx Zynq. 512 513config 21285_WATCHDOG 514 tristate "DC21285 watchdog" 515 depends on FOOTBRIDGE 516 help 517 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 518 here if you wish to use this. Alternatively say M to compile the 519 driver as a module, which will be called wdt285. 520 521 This driver does not work on all machines. In particular, early CATS 522 boards have hardware problems that will cause the machine to simply 523 lock up if the watchdog fires. 524 525 "If in doubt, leave it out" - say N. 526 527config 977_WATCHDOG 528 tristate "NetWinder WB83C977 watchdog" 529 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 530 depends on HAS_IOPORT 531 help 532 Say Y here to include support for the WB977 watchdog included in 533 NetWinder machines. Alternatively say M to compile the driver as 534 a module, which will be called wdt977. 535 536 Not sure? It's safe to say N. 537 538config FTWDT010_WATCHDOG 539 tristate "Faraday Technology FTWDT010 watchdog" 540 depends on ARM || COMPILE_TEST 541 select WATCHDOG_CORE 542 default ARCH_GEMINI 543 help 544 Say Y here if to include support for the Faraday Technology 545 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 546 family of devices. 547 548 To compile this driver as a module, choose M here: the 549 module will be called ftwdt010_wdt. 550 551config IXP4XX_WATCHDOG 552 tristate "IXP4xx Watchdog" 553 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 554 select WATCHDOG_CORE 555 help 556 Say Y here if to include support for the watchdog timer 557 in the Intel IXP4xx network processors. This driver can 558 be built as a module by choosing M. The module will 559 be called ixp4xx_wdt. 560 561 Note: The internal IXP4xx watchdog does a soft CPU reset 562 which doesn't reset any peripherals. There are circumstances 563 where the watchdog will fail to reset the board correctly 564 (e.g., if the boot ROM is in an unreadable state). 565 566 Say N if you are unsure. 567 568config S3C2410_WATCHDOG 569 tristate "S3C6410/S5Pv210/Exynos Watchdog" 570 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 571 select WATCHDOG_CORE 572 select MFD_SYSCON if ARCH_EXYNOS 573 help 574 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 575 SoCs. This will reboot the system when the timer expires with 576 the watchdog enabled. 577 578 The driver is limited by the speed of the system's PCLK 579 signal, so with reasonably fast systems (PCLK around 50-66MHz) 580 then watchdog intervals of over approximately 20seconds are 581 unavailable. 582 583 Choose Y/M here only if you build for such Samsung SoC. 584 The driver can be built as a module by choosing M, and will 585 be called s3c2410_wdt. 586 587config SA1100_WATCHDOG 588 tristate "SA1100/PXA2xx watchdog" 589 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 590 help 591 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 592 reboot your system when timeout is reached. 593 594 NOTE: once enabled, this timer cannot be disabled. 595 596 To compile this driver as a module, choose M here: the 597 module will be called sa1100_wdt. 598 599config DW_WATCHDOG 600 tristate "Synopsys DesignWare watchdog" 601 depends on HAS_IOMEM 602 select WATCHDOG_CORE 603 help 604 Say Y here if to include support for the Synopsys DesignWare 605 watchdog timer found in many chips. 606 To compile this driver as a module, choose M here: the 607 module will be called dw_wdt. 608 609config EP93XX_WATCHDOG 610 tristate "EP93xx Watchdog" 611 depends on ARCH_EP93XX || COMPILE_TEST 612 select WATCHDOG_CORE 613 help 614 Say Y here if to include support for the watchdog timer 615 embedded in the Cirrus Logic EP93xx family of devices. 616 617 To compile this driver as a module, choose M here: the 618 module will be called ep93xx_wdt. 619 620config OMAP_WATCHDOG 621 tristate "OMAP Watchdog" 622 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 623 select WATCHDOG_CORE 624 help 625 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 626 Say 'Y' here to enable the 627 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 628 629config PNX4008_WATCHDOG 630 tristate "LPC32XX Watchdog" 631 depends on ARCH_LPC32XX || COMPILE_TEST 632 select WATCHDOG_CORE 633 help 634 Say Y here if to include support for the watchdog timer 635 in the LPC32XX processor. 636 This driver can be built as a module by choosing M. The module 637 will be called pnx4008_wdt. 638 639 Say N if you are unsure. 640 641config DAVINCI_WATCHDOG 642 tristate "DaVinci watchdog" 643 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 644 select WATCHDOG_CORE 645 help 646 Say Y here if to include support for the watchdog timer 647 in the DaVinci DM644x/DM646x or Keystone processors. 648 To compile this driver as a module, choose M here: the 649 module will be called davinci_wdt. 650 651 NOTE: once enabled, this timer cannot be disabled. 652 Say N if you are unsure. 653 654config K3_RTI_WATCHDOG 655 tristate "Texas Instruments K3 RTI watchdog" 656 depends on ARCH_K3 || COMPILE_TEST 657 select WATCHDOG_CORE 658 help 659 Say Y here if you want to include support for the K3 watchdog 660 timer (RTI module) available in the K3 generation of processors. 661 662config ORION_WATCHDOG 663 tristate "Orion watchdog" 664 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 665 depends on ARM 666 select WATCHDOG_CORE 667 help 668 Say Y here if to include support for the watchdog timer 669 in the Marvell Orion5x and Kirkwood ARM SoCs. 670 To compile this driver as a module, choose M here: the 671 module will be called orion_wdt. 672 673config RN5T618_WATCHDOG 674 tristate "Ricoh RN5T618 watchdog" 675 depends on MFD_RN5T618 || COMPILE_TEST 676 select WATCHDOG_CORE 677 help 678 If you say yes here you get support for watchdog on the Ricoh 679 RN5T618 PMIC. 680 681 This driver can also be built as a module. If so, the module 682 will be called rn5t618_wdt. 683 684config SUNXI_WATCHDOG 685 tristate "Allwinner SoCs watchdog support" 686 depends on ARCH_SUNXI || COMPILE_TEST 687 select WATCHDOG_CORE 688 help 689 Say Y here to include support for the watchdog timer 690 in Allwinner SoCs. 691 To compile this driver as a module, choose M here: the 692 module will be called sunxi_wdt. 693 694config NPCM7XX_WATCHDOG 695 tristate "Nuvoton NPCM750 watchdog" 696 depends on ARCH_NPCM || COMPILE_TEST 697 default y if ARCH_NPCM7XX 698 select WATCHDOG_CORE 699 help 700 Say Y here to include Watchdog timer support for the 701 watchdog embedded into the NPCM7xx. 702 This watchdog is used to reset the system and thus cannot be 703 compiled as a module. 704 705config TWL4030_WATCHDOG 706 tristate "TWL4030 Watchdog" 707 depends on TWL4030_CORE 708 select WATCHDOG_CORE 709 help 710 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 711 watchdog timer support for TWL4030 chips. 712 713config STMP3XXX_RTC_WATCHDOG 714 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 715 depends on RTC_DRV_STMP || COMPILE_TEST 716 select WATCHDOG_CORE 717 help 718 Say Y here to include support for the watchdog timer inside 719 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 720 To compile this driver as a module, choose M here: the 721 module will be called stmp3xxx_rtc_wdt. 722 723config TS4800_WATCHDOG 724 tristate "TS-4800 Watchdog" 725 depends on HAS_IOMEM && OF 726 depends on SOC_IMX51 || COMPILE_TEST 727 select WATCHDOG_CORE 728 select MFD_SYSCON 729 help 730 Technologic Systems TS-4800 has watchdog timer implemented in 731 an external FPGA. Say Y here if you want to support for the 732 watchdog timer on TS-4800 board. 733 734config TS72XX_WATCHDOG 735 tristate "TS-72XX SBC Watchdog" 736 depends on MACH_TS72XX || COMPILE_TEST 737 select WATCHDOG_CORE 738 help 739 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 740 watchdog timer implemented in a external CPLD chip. Say Y here 741 if you want to support for the watchdog timer on TS-72XX boards. 742 743 To compile this driver as a module, choose M here: the 744 module will be called ts72xx_wdt. 745 746config MAX63XX_WATCHDOG 747 tristate "Max63xx watchdog" 748 depends on HAS_IOMEM 749 select WATCHDOG_CORE 750 help 751 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 752 753config MAX77620_WATCHDOG 754 tristate "Maxim Max77620 Watchdog Timer" 755 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 756 select WATCHDOG_CORE 757 help 758 This is the driver for the Max77620 watchdog timer. 759 Say 'Y' here to enable the watchdog timer support for 760 MAX77620 chips. To compile this driver as a module, 761 choose M here: the module will be called max77620_wdt. 762 763config IMX2_WDT 764 tristate "IMX2+ Watchdog" 765 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 766 select REGMAP_MMIO 767 select WATCHDOG_CORE 768 help 769 This is the driver for the hardware watchdog 770 on the Freescale IMX2 and later processors. 771 If you have one of these processors and wish to have 772 watchdog support enabled, say Y, otherwise say N. 773 774 To compile this driver as a module, choose M here: the 775 module will be called imx2_wdt. 776 777config IMX_SC_WDT 778 tristate "IMX SC Watchdog" 779 depends on HAVE_ARM_SMCCC 780 depends on IMX_SCU || COMPILE_TEST 781 select WATCHDOG_CORE 782 help 783 This is the driver for the system controller watchdog 784 on the NXP i.MX SoCs with system controller inside, the 785 watchdog driver will call ARM SMC API and trap into 786 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 787 will request system controller to execute the operations. 788 If you have one of these processors and wish to have 789 watchdog support enabled, say Y, otherwise say N. 790 791 To compile this driver as a module, choose M here: the 792 module will be called imx_sc_wdt. 793 794config IMX7ULP_WDT 795 tristate "IMX7ULP Watchdog" 796 depends on ARCH_MXC || COMPILE_TEST 797 select WATCHDOG_CORE 798 help 799 This is the driver for the hardware watchdog on the Freescale 800 IMX7ULP and later processors. If you have one of these 801 processors and wish to have watchdog support enabled, 802 say Y, otherwise say N. 803 804 To compile this driver as a module, choose M here: the 805 module will be called imx7ulp_wdt. 806 807config DB500_WATCHDOG 808 tristate "ST-Ericsson DB800 watchdog" 809 depends on MFD_DB8500_PRCMU 810 select WATCHDOG_CORE 811 default y 812 help 813 Say Y here to include Watchdog timer support for the watchdog 814 existing in the prcmu of ST-Ericsson DB8500 platform. 815 816 To compile this driver as a module, choose M here: the 817 module will be called db500_wdt. 818 819config RETU_WATCHDOG 820 tristate "Retu watchdog" 821 depends on MFD_RETU 822 select WATCHDOG_CORE 823 help 824 Retu watchdog driver for Nokia Internet Tablets (770, N800, 825 N810). At least on N800 the watchdog cannot be disabled, so 826 this driver is essential and you should enable it. 827 828 To compile this driver as a module, choose M here: the 829 module will be called retu_wdt. 830 831config MOXART_WDT 832 tristate "MOXART watchdog" 833 depends on ARCH_MOXART || COMPILE_TEST 834 help 835 Say Y here to include Watchdog timer support for the watchdog 836 existing on the MOXA ART SoC series platforms. 837 838 To compile this driver as a module, choose M here: the 839 module will be called moxart_wdt. 840 841config ST_LPC_WATCHDOG 842 tristate "STMicroelectronics LPC Watchdog" 843 depends on ARCH_STI || COMPILE_TEST 844 depends on OF 845 select WATCHDOG_CORE 846 help 847 Say Y here to include STMicroelectronics Low Power Controller 848 (LPC) based Watchdog timer support. 849 850 To compile this driver as a module, choose M here: the 851 module will be called st_lpc_wdt. 852 853config TEGRA_WATCHDOG 854 tristate "Tegra watchdog" 855 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 856 select WATCHDOG_CORE 857 help 858 Say Y here to include support for the watchdog timer 859 embedded in NVIDIA Tegra SoCs. 860 861 To compile this driver as a module, choose M here: the 862 module will be called tegra_wdt. 863 864config QCOM_WDT 865 tristate "QCOM watchdog" 866 depends on HAS_IOMEM 867 depends on ARCH_QCOM || COMPILE_TEST 868 select WATCHDOG_CORE 869 help 870 Say Y here to include Watchdog timer support for the watchdog found 871 on QCOM chipsets. Currently supported targets are the MSM8960, 872 APQ8064, and IPQ8064. 873 874 To compile this driver as a module, choose M here: the 875 module will be called qcom_wdt. 876 877config MESON_GXBB_WATCHDOG 878 tristate "Amlogic Meson GXBB SoCs watchdog support" 879 depends on ARCH_MESON || COMPILE_TEST 880 select WATCHDOG_CORE 881 help 882 Say Y here to include support for the watchdog timer 883 in Amlogic Meson GXBB SoCs. 884 To compile this driver as a module, choose M here: the 885 module will be called meson_gxbb_wdt. 886 887config MESON_WATCHDOG 888 tristate "Amlogic Meson SoCs watchdog support" 889 depends on ARCH_MESON || COMPILE_TEST 890 select WATCHDOG_CORE 891 help 892 Say Y here to include support for the watchdog timer 893 in Amlogic Meson SoCs. 894 To compile this driver as a module, choose M here: the 895 module will be called meson_wdt. 896 897config MEDIATEK_WATCHDOG 898 tristate "Mediatek SoCs watchdog support" 899 depends on ARCH_MEDIATEK || COMPILE_TEST 900 default ARCH_MEDIATEK 901 select WATCHDOG_CORE 902 select RESET_CONTROLLER 903 help 904 Say Y here to include support for the watchdog timer 905 in Mediatek SoCs. 906 To compile this driver as a module, choose M here: the 907 module will be called mtk_wdt. 908 909config DIGICOLOR_WATCHDOG 910 tristate "Conexant Digicolor SoCs watchdog support" 911 depends on ARCH_DIGICOLOR || COMPILE_TEST 912 select WATCHDOG_CORE 913 help 914 Say Y here to include support for the watchdog timer 915 in Conexant Digicolor SoCs. 916 To compile this driver as a module, choose M here: the 917 module will be called digicolor_wdt. 918 919config ARM_SMC_WATCHDOG 920 tristate "ARM Secure Monitor Call based watchdog support" 921 depends on ARM || ARM64 922 depends on OF 923 depends on HAVE_ARM_SMCCC 924 select WATCHDOG_CORE 925 help 926 Say Y here to include support for a watchdog timer 927 implemented by the EL3 Secure Monitor on ARM platforms. 928 Requires firmware support. 929 To compile this driver as a module, choose M here: the 930 module will be called arm_smc_wdt. 931 932config LPC18XX_WATCHDOG 933 tristate "LPC18xx/43xx Watchdog" 934 depends on ARCH_LPC18XX || COMPILE_TEST 935 depends on HAS_IOMEM 936 select WATCHDOG_CORE 937 help 938 Say Y here if to include support for the watchdog timer 939 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 940 processors. 941 To compile this driver as a module, choose M here: the 942 module will be called lpc18xx_wdt. 943 944config RENESAS_WDT 945 tristate "Renesas WDT Watchdog" 946 depends on ARCH_RENESAS || COMPILE_TEST 947 select WATCHDOG_CORE 948 help 949 This driver adds watchdog support for the integrated watchdogs in the 950 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 951 952config RENESAS_RZAWDT 953 tristate "Renesas RZ/A WDT Watchdog" 954 depends on ARCH_RENESAS || COMPILE_TEST 955 select WATCHDOG_CORE 956 help 957 This driver adds watchdog support for the integrated watchdogs in the 958 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 959 960config RENESAS_RZN1WDT 961 tristate "Renesas RZ/N1 watchdog" 962 depends on ARCH_RENESAS || COMPILE_TEST 963 select WATCHDOG_CORE 964 help 965 This driver adds watchdog support for the integrated watchdogs in the 966 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 967 968config RENESAS_RZG2LWDT 969 tristate "Renesas RZ/G2L WDT Watchdog" 970 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 971 depends on PM || COMPILE_TEST 972 select WATCHDOG_CORE 973 help 974 This driver adds watchdog support for the integrated watchdogs in the 975 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 976 977config RENESAS_RZV2HWDT 978 tristate "Renesas RZ/{G3E,V2H(P)} WDT Watchdog" 979 depends on ARCH_RENESAS || COMPILE_TEST 980 depends on PM || COMPILE_TEST 981 select WATCHDOG_CORE 982 help 983 This driver adds watchdog support for the integrated watchdogs in the 984 Renesas RZ/{G3E,V2H(P)} SoCs. These watchdogs can be used to reset a 985 system. 986 987config ASPEED_WATCHDOG 988 tristate "Aspeed BMC watchdog support" 989 depends on ARCH_ASPEED || COMPILE_TEST 990 select WATCHDOG_CORE 991 help 992 Say Y here to include support for the watchdog timer 993 in Aspeed BMC SoCs. 994 995 This driver is required to reboot the SoC. 996 997 To compile this driver as a module, choose M here: the 998 module will be called aspeed_wdt. 999 1000config STM32_WATCHDOG 1001 tristate "STM32 Independent WatchDoG (IWDG) support" 1002 depends on ARCH_STM32 || COMPILE_TEST 1003 select WATCHDOG_CORE 1004 default y 1005 help 1006 Say Y here to include support for the watchdog timer 1007 in stm32 SoCs. 1008 1009 To compile this driver as a module, choose M here: the 1010 module will be called stm32_iwdg. 1011 1012config STPMIC1_WATCHDOG 1013 tristate "STPMIC1 PMIC watchdog support" 1014 depends on MFD_STPMIC1 1015 select WATCHDOG_CORE 1016 help 1017 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1018 If the watchdog timer expires, stpmic1 will shut down all its power 1019 supplies. 1020 1021 To compile this driver as a module, choose M here: the 1022 module will be called spmic1_wdt. 1023 1024config UNIPHIER_WATCHDOG 1025 tristate "UniPhier watchdog support" 1026 depends on ARCH_UNIPHIER || COMPILE_TEST 1027 depends on OF && MFD_SYSCON 1028 select WATCHDOG_CORE 1029 help 1030 Say Y here to include support watchdog timer embedded 1031 into the UniPhier system. 1032 1033 To compile this driver as a module, choose M here: the 1034 module will be called uniphier_wdt. 1035 1036config RTD119X_WATCHDOG 1037 bool "Realtek RTD119x/RTD129x watchdog support" 1038 depends on ARCH_REALTEK || COMPILE_TEST 1039 depends on OF 1040 select WATCHDOG_CORE 1041 default ARCH_REALTEK 1042 help 1043 Say Y here to include support for the watchdog timer in 1044 Realtek RTD1295 SoCs. 1045 1046config REALTEK_OTTO_WDT 1047 tristate "Realtek Otto MIPS watchdog support" 1048 depends on MACH_REALTEK_RTL || COMPILE_TEST 1049 depends on COMMON_CLK 1050 select WATCHDOG_CORE 1051 default MACH_REALTEK_RTL 1052 help 1053 Say Y here to include support for the watchdog timer on Realtek 1054 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1055 notifications and system reset on timeout. 1056 1057 When built as a module this will be called realtek_otto_wdt. 1058 1059config SPRD_WATCHDOG 1060 tristate "Spreadtrum watchdog support" 1061 depends on ARCH_SPRD || COMPILE_TEST 1062 select WATCHDOG_CORE 1063 help 1064 Say Y here to include watchdog timer supported 1065 by Spreadtrum system. 1066 1067config PM8916_WATCHDOG 1068 tristate "QCOM PM8916 pmic watchdog" 1069 depends on OF && MFD_SPMI_PMIC 1070 select WATCHDOG_CORE 1071 help 1072 Say Y here to include support watchdog timer embedded into the 1073 pm8916 module. 1074 1075config VISCONTI_WATCHDOG 1076 tristate "Toshiba Visconti series watchdog support" 1077 depends on ARCH_VISCONTI || COMPILE_TEST 1078 select WATCHDOG_CORE 1079 help 1080 Say Y here to include support for the watchdog timer in Toshiba 1081 Visconti SoCs. 1082 1083config MSC313E_WATCHDOG 1084 tristate "MStar MSC313e watchdog" 1085 depends on ARCH_MSTARV7 || COMPILE_TEST 1086 select WATCHDOG_CORE 1087 help 1088 Say Y here to include support for the Watchdog timer embedded 1089 into MStar MSC313e chips. This will reboot your system when the 1090 timeout is reached. 1091 1092 To compile this driver as a module, choose M here: the 1093 module will be called msc313e_wdt. 1094 1095config APPLE_WATCHDOG 1096 tristate "Apple SoC watchdog" 1097 depends on ARCH_APPLE || COMPILE_TEST 1098 select WATCHDOG_CORE 1099 help 1100 Say Y here to include support for the Watchdog found in Apple 1101 SoCs such as the M1. Next to the common watchdog features this 1102 driver is also required in order to reboot these SoCs. 1103 1104 To compile this driver as a module, choose M here: the 1105 module will be called apple_wdt. 1106 1107config SUNPLUS_WATCHDOG 1108 tristate "Sunplus watchdog support" 1109 depends on ARCH_SUNPLUS || COMPILE_TEST 1110 select WATCHDOG_CORE 1111 help 1112 Say Y here to include support for the watchdog timer 1113 in Sunplus SoCs. 1114 1115 To compile this driver as a module, choose M here: the 1116 module will be called sunplus_wdt. 1117 1118# X86 (i386 + ia64 + x86_64) Architecture 1119 1120config ACQUIRE_WDT 1121 tristate "Acquire SBC Watchdog Timer" 1122 depends on X86 1123 help 1124 This is the driver for the hardware watchdog on Single Board 1125 Computers produced by Acquire Inc (and others). This watchdog 1126 simply watches your kernel to make sure it doesn't freeze, and if 1127 it does, it reboots your computer after a certain amount of time. 1128 1129 To compile this driver as a module, choose M here: the 1130 module will be called acquirewdt. 1131 1132 Most people will say N. 1133 1134config ADVANTECH_WDT 1135 tristate "Advantech SBC Watchdog Timer" 1136 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1137 help 1138 If you are configuring a Linux kernel for the Advantech single-board 1139 computer, say `Y' here to support its built-in watchdog timer 1140 feature. More information can be found at 1141 <https://www.advantech.com.tw/products/> 1142 1143config ADVANTECH_EC_WDT 1144 tristate "Advantech Embedded Controller Watchdog Timer" 1145 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1146 select ISA_BUS_API 1147 select WATCHDOG_CORE 1148 help 1149 This driver supports Advantech products with ITE based Embedded Controller. 1150 It does not support Advantech products with other ECs or without EC. 1151 1152config ALIM1535_WDT 1153 tristate "ALi M1535 PMU Watchdog Timer" 1154 depends on (X86 || COMPILE_TEST) && PCI 1155 help 1156 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1157 1158 To compile this driver as a module, choose M here: the 1159 module will be called alim1535_wdt. 1160 1161 Most people will say N. 1162 1163config ALIM7101_WDT 1164 tristate "ALi M7101 PMU Computer Watchdog" 1165 depends on PCI 1166 help 1167 This is the driver for the hardware watchdog on the ALi M7101 PMU 1168 as used in the x86 Cobalt servers and also found in some 1169 SPARC Netra servers too. 1170 1171 To compile this driver as a module, choose M here: the 1172 module will be called alim7101_wdt. 1173 1174 Most people will say N. 1175 1176config CGBC_WDT 1177 tristate "Congatec Board Controller Watchdog Timer" 1178 depends on MFD_CGBC 1179 select WATCHDOG_CORE 1180 help 1181 Enables watchdog timer support for the Congatec Board Controller. 1182 1183 This driver can also be built as a module. If so, the module will be 1184 called cgbc_wdt. 1185 1186config EBC_C384_WDT 1187 tristate "WinSystems EBC-C384 Watchdog Timer" 1188 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1189 select ISA_BUS_API 1190 select WATCHDOG_CORE 1191 help 1192 Enables watchdog timer support for the watchdog timer on the 1193 WinSystems EBC-C384 motherboard. The timeout may be configured via 1194 the timeout module parameter. 1195 1196config EXAR_WDT 1197 tristate "Exar Watchdog Timer" 1198 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1199 select WATCHDOG_CORE 1200 help 1201 Enables watchdog timer support for the watchdog timer present 1202 in some Exar/MaxLinear UART chips like the XR28V38x. 1203 1204 To compile this driver as a module, choose M here: the 1205 module will be called exar_wdt. 1206 1207config F71808E_WDT 1208 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1209 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1210 select WATCHDOG_CORE 1211 help 1212 This is the driver for the hardware watchdog on the Fintek F71808E, 1213 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1214 F81866 Super I/O controllers. 1215 1216 You can compile this driver directly into the kernel, or use 1217 it as a module. The module will be called f71808e_wdt. 1218 1219config SP5100_TCO 1220 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1221 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1222 select WATCHDOG_CORE 1223 help 1224 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1225 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1226 the machine after its expiration. The expiration time can be 1227 configured with the "heartbeat" parameter. 1228 1229 To compile this driver as a module, choose M here: the 1230 module will be called sp5100_tco. 1231 1232config GEODE_WDT 1233 tristate "AMD Geode CS5535/CS5536 Watchdog" 1234 depends on CS5535_MFGPT 1235 help 1236 This driver enables a watchdog capability built into the 1237 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1238 processors. This watchdog watches your kernel to make sure 1239 it doesn't freeze, and if it does, it reboots your computer after 1240 a certain amount of time. 1241 1242 You can compile this driver directly into the kernel, or use 1243 it as a module. The module will be called geodewdt. 1244 1245config SC520_WDT 1246 tristate "AMD Elan SC520 processor Watchdog" 1247 depends on MELAN || COMPILE_TEST 1248 help 1249 This is the driver for the hardware watchdog built in to the 1250 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1251 This watchdog simply watches your kernel to make sure it doesn't 1252 freeze, and if it does, it reboots your computer after a certain 1253 amount of time. 1254 1255 You can compile this driver directly into the kernel, or use 1256 it as a module. The module will be called sc520_wdt. 1257 1258config SBC_FITPC2_WATCHDOG 1259 tristate "Compulab SBC-FITPC2 watchdog" 1260 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1261 help 1262 This is the driver for the built-in watchdog timer on the fit-PC2, 1263 fit-PC2i, CM-iAM single-board computers made by Compulab. 1264 1265 It's possible to enable the watchdog timer either from BIOS (F2) or 1266 from booted Linux. 1267 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1268 operational range. 1269 1270 Entering BIOS setup temporarily disables watchdog operation regardless 1271 of current state, so system will not be restarted while user is in 1272 BIOS setup. 1273 1274 Once the watchdog is enabled the system will be restarted every 1275 "Watchdog Timer Value" period, so to prevent it user can restart or 1276 disable the watchdog. 1277 1278 To compile this driver as a module, choose M here: the 1279 module will be called sbc_fitpc2_wdt. 1280 1281 Most people will say N. 1282 1283config EUROTECH_WDT 1284 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1285 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1286 help 1287 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1288 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1289 information are at <http://www.eurotech.it/>. 1290 1291config IB700_WDT 1292 tristate "IB700 SBC Watchdog Timer" 1293 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1294 help 1295 This is the driver for the hardware watchdog on the IB700 Single 1296 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1297 watchdog simply watches your kernel to make sure it doesn't freeze, 1298 and if it does, it reboots your computer after a certain amount of time. 1299 1300 This driver is like the WDT501 driver but for slightly different 1301 hardware. 1302 1303 To compile this driver as a module, choose M here: the 1304 module will be called ib700wdt. 1305 1306 Most people will say N. 1307 1308config IBMASR 1309 tristate "IBM Automatic Server Restart" 1310 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1311 help 1312 This is the driver for the IBM Automatic Server Restart watchdog 1313 timer built-in into some eServer xSeries machines. 1314 1315 To compile this driver as a module, choose M here: the 1316 module will be called ibmasr. 1317 1318config WAFER_WDT 1319 tristate "ICP Single Board Computer Watchdog Timer" 1320 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1321 help 1322 This is a driver for the hardware watchdog on the ICP Single 1323 Board Computer. This driver is working on (at least) the following 1324 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1325 1326 To compile this driver as a module, choose M here: the 1327 module will be called wafer5823wdt. 1328 1329config I6300ESB_WDT 1330 tristate "Intel 6300ESB Timer/Watchdog" 1331 depends on PCI 1332 select WATCHDOG_CORE 1333 help 1334 Hardware driver for the watchdog timer built into the Intel 1335 6300ESB controller hub. 1336 1337 To compile this driver as a module, choose M here: the 1338 module will be called i6300esb. 1339 1340config IE6XX_WDT 1341 tristate "Intel Atom E6xx Watchdog" 1342 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1343 select WATCHDOG_CORE 1344 select MFD_CORE 1345 select LPC_SCH 1346 help 1347 Hardware driver for the watchdog timer built into the Intel 1348 Atom E6XX (TunnelCreek) processor. 1349 1350 To compile this driver as a module, choose M here: the 1351 module will be called ie6xx_wdt. 1352 1353config INTEL_MID_WATCHDOG 1354 tristate "Intel MID Watchdog Timer" 1355 depends on X86_INTEL_MID 1356 select WATCHDOG_CORE 1357 help 1358 Watchdog timer driver built into the Intel SCU for Intel MID 1359 Platforms. 1360 1361 This driver currently supports only the watchdog evolution 1362 implementation in SCU, available for Merrifield generation. 1363 1364 To compile this driver as a module, choose M here. 1365 1366config ITCO_WDT 1367 tristate "Intel TCO Timer/Watchdog" 1368 depends on X86 && PCI 1369 select WATCHDOG_CORE 1370 depends on I2C || I2C=n 1371 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1372 depends on HAS_IOPORT # for I2C_I801 1373 select LPC_ICH if !EXPERT 1374 select I2C_I801 if !EXPERT && I2C 1375 help 1376 Hardware driver for the intel TCO timer based watchdog devices. 1377 These drivers are included in the Intel 82801 I/O Controller 1378 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1379 controller hub. 1380 1381 The TCO (Total Cost of Ownership) timer is a watchdog timer 1382 that will reboot the machine after its second expiration. The 1383 expiration time can be configured with the "heartbeat" parameter. 1384 1385 On some motherboards the driver may fail to reset the chipset's 1386 NO_REBOOT flag which prevents the watchdog from rebooting the 1387 machine. If this is the case you will get a kernel message like 1388 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1389 1390 To compile this driver as a module, choose M here: the 1391 module will be called iTCO_wdt. 1392 1393config ITCO_VENDOR_SUPPORT 1394 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1395 depends on ITCO_WDT 1396 help 1397 Add vendor specific support to the intel TCO timer based watchdog 1398 devices. At this moment we only have additional support for some 1399 SuperMicro Inc. motherboards. 1400 1401config IT8712F_WDT 1402 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1403 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1404 help 1405 This is the driver for the built-in watchdog timer on the IT8712F 1406 Super I/0 chipset used on many motherboards. 1407 1408 If the driver does not work, then make sure that the game port in 1409 the BIOS is enabled. 1410 1411 To compile this driver as a module, choose M here: the 1412 module will be called it8712f_wdt. 1413 1414config IT87_WDT 1415 tristate "IT87 Watchdog Timer" 1416 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1417 select WATCHDOG_CORE 1418 help 1419 This is the driver for the hardware watchdog on the ITE IT8607, 1420 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1421 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1422 IT8783 Super I/O chips. 1423 1424 This watchdog simply watches your kernel to make sure it doesn't 1425 freeze, and if it does, it reboots your computer after a certain 1426 amount of time. 1427 1428 To compile this driver as a module, choose M here: the module will 1429 be called it87_wdt. 1430 1431config HP_WATCHDOG 1432 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1433 select WATCHDOG_CORE 1434 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1435 help 1436 A software monitoring watchdog and NMI handling driver. This driver 1437 will detect lockups and provide a stack trace. This is a driver that 1438 will only load on an HP ProLiant system with a minimum of iLO2 support. 1439 To compile this driver as a module, choose M here: the module will be 1440 called hpwdt. 1441 1442config HPWDT_NMI_DECODING 1443 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1444 depends on X86 && HP_WATCHDOG 1445 default y 1446 help 1447 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1448 "Generate NMI to System" virtual button. When an NMI is claimed 1449 by the driver, panic is called. 1450 1451config KEMPLD_WDT 1452 tristate "Kontron COM Watchdog Timer" 1453 depends on MFD_KEMPLD 1454 select WATCHDOG_CORE 1455 help 1456 Support for the PLD watchdog on some Kontron ETX and COMexpress 1457 (ETXexpress) modules 1458 1459 This driver can also be built as a module. If so, the module will be 1460 called kempld_wdt. 1461 1462config SC1200_WDT 1463 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1464 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1465 help 1466 This is a driver for National Semiconductor PC87307/PC97307 hardware 1467 watchdog cards as found on the SC1200. This watchdog is mainly used 1468 for power management purposes and can be used to power down the device 1469 during inactivity periods (includes interrupt activity monitoring). 1470 1471 To compile this driver as a module, choose M here: the 1472 module will be called sc1200wdt. 1473 1474 Most people will say N. 1475 1476config SCx200_WDT 1477 tristate "National Semiconductor SCx200 Watchdog" 1478 depends on SCx200 && PCI 1479 help 1480 Enable the built-in watchdog timer support on the National 1481 Semiconductor SCx200 processors. 1482 1483 If compiled as a module, it will be called scx200_wdt. 1484 1485config PC87413_WDT 1486 tristate "NS PC87413 watchdog" 1487 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1488 help 1489 This is the driver for the hardware watchdog on the PC87413 chipset 1490 This watchdog simply watches your kernel to make sure it doesn't 1491 freeze, and if it does, it reboots your computer after a certain 1492 amount of time. 1493 1494 To compile this driver as a module, choose M here: the 1495 module will be called pc87413_wdt. 1496 1497 Most people will say N. 1498 1499config NV_TCO 1500 tristate "nVidia TCO Timer/Watchdog" 1501 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1502 help 1503 Hardware driver for the TCO timer built into the nVidia Hub family 1504 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1505 watchdog timer that will reboot the machine after its second 1506 expiration. The expiration time can be configured with the 1507 "heartbeat" parameter. 1508 1509 On some motherboards the driver may fail to reset the chipset's 1510 NO_REBOOT flag which prevents the watchdog from rebooting the 1511 machine. If this is the case you will get a kernel message like 1512 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1513 1514 To compile this driver as a module, choose M here: the 1515 module will be called nv_tco. 1516 1517config RDC321X_WDT 1518 tristate "RDC R-321x SoC watchdog" 1519 depends on X86_RDC321X || COMPILE_TEST 1520 depends on PCI 1521 help 1522 This is the driver for the built in hardware watchdog 1523 in the RDC R-321x SoC. 1524 1525 To compile this driver as a module, choose M here: the 1526 module will be called rdc321x_wdt. 1527 1528config 60XX_WDT 1529 tristate "SBC-60XX Watchdog Timer" 1530 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1531 help 1532 This driver can be used with the watchdog timer found on some 1533 single board computers, namely the 6010 PII based computer. 1534 It may well work with other cards. It reads port 0x443 to enable 1535 and re-set the watchdog timer, and reads port 0x45 to disable 1536 the watchdog. If you have a card that behave in similar ways, 1537 you can probably make this driver work with your card as well. 1538 1539 You can compile this driver directly into the kernel, or use 1540 it as a module. The module will be called sbc60xxwdt. 1541 1542config SBC8360_WDT 1543 tristate "SBC8360 Watchdog Timer" 1544 depends on X86_32 && HAS_IOPORT 1545 help 1546 1547 This is the driver for the hardware watchdog on the SBC8360 Single 1548 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1549 1550 To compile this driver as a module, choose M here: the 1551 module will be called sbc8360. 1552 1553 Most people will say N. 1554 1555config SBC7240_WDT 1556 tristate "SBC Nano 7240 Watchdog Timer" 1557 depends on X86_32 && HAS_IOPORT 1558 help 1559 This is the driver for the hardware watchdog found on the IEI 1560 single board computers EPIC Nano 7240 (and likely others). This 1561 watchdog simply watches your kernel to make sure it doesn't freeze, 1562 and if it does, it reboots your computer after a certain amount of 1563 time. 1564 1565 To compile this driver as a module, choose M here: the 1566 module will be called sbc7240_wdt. 1567 1568config SMSC_SCH311X_WDT 1569 tristate "SMSC SCH311X Watchdog Timer" 1570 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1571 help 1572 This is the driver for the hardware watchdog timer on the 1573 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1574 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1575 serial ports). 1576 1577 To compile this driver as a module, choose M here: the 1578 module will be called sch311x_wdt. 1579 1580config SMSC37B787_WDT 1581 tristate "Winbond SMsC37B787 Watchdog Timer" 1582 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1583 help 1584 This is the driver for the hardware watchdog component on the 1585 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1586 from Vision Systems and maybe others. 1587 1588 This watchdog simply watches your kernel to make sure it doesn't 1589 freeze, and if it does, it reboots your computer after a certain 1590 amount of time. 1591 1592 Usually a userspace daemon will notify the kernel WDT driver that 1593 userspace is still alive, at regular intervals. 1594 1595 To compile this driver as a module, choose M here: the 1596 module will be called smsc37b787_wdt. 1597 1598 Most people will say N. 1599 1600config TQMX86_WDT 1601 tristate "TQ-Systems TQMX86 Watchdog Timer" 1602 depends on X86 || COMPILE_TEST 1603 select WATCHDOG_CORE 1604 help 1605 This is the driver for the hardware watchdog timer in the TQMX86 IO 1606 controller found on some of their ComExpress Modules. 1607 1608 To compile this driver as a module, choose M here; the module 1609 will be called tqmx86_wdt. 1610 1611 Most people will say N. 1612 1613config VIA_WDT 1614 tristate "VIA Watchdog Timer" 1615 depends on (X86 || COMPILE_TEST) && PCI 1616 select WATCHDOG_CORE 1617 help 1618 This is the driver for the hardware watchdog timer on VIA 1619 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1620 1621 To compile this driver as a module, choose M here; the module 1622 will be called via_wdt. 1623 1624 Most people will say N. 1625 1626config W83627HF_WDT 1627 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1628 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1629 select WATCHDOG_CORE 1630 help 1631 This is the driver for the hardware watchdog on the following 1632 Super I/O chips. 1633 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1634 W83637HF 1635 W83667HG/HG-B 1636 W83687THF 1637 W83697HF 1638 W83697UG 1639 NCT6775 1640 NCT6776 1641 NCT6779 1642 NCT6791 1643 NCT6792 1644 NCT6102D/04D/06D 1645 NCT6116D 1646 1647 This watchdog simply watches your kernel to make sure it doesn't 1648 freeze, and if it does, it reboots your computer after a certain 1649 amount of time. 1650 1651 To compile this driver as a module, choose M here: the 1652 module will be called w83627hf_wdt. 1653 1654 Most people will say N. 1655 1656config W83877F_WDT 1657 tristate "W83877F (EMACS) Watchdog Timer" 1658 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1659 help 1660 This is the driver for the hardware watchdog on the W83877F chipset 1661 as used in EMACS PC-104 motherboards (and likely others). This 1662 watchdog simply watches your kernel to make sure it doesn't freeze, 1663 and if it does, it reboots your computer after a certain amount of 1664 time. 1665 1666 To compile this driver as a module, choose M here: the 1667 module will be called w83877f_wdt. 1668 1669 Most people will say N. 1670 1671config W83977F_WDT 1672 tristate "W83977F (PCM-5335) Watchdog Timer" 1673 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1674 help 1675 This is the driver for the hardware watchdog on the W83977F I/O chip 1676 as used in AAEON's PCM-5335 SBC (and likely others). This 1677 watchdog simply watches your kernel to make sure it doesn't freeze, 1678 and if it does, it reboots your computer after a certain amount of 1679 time. 1680 1681 To compile this driver as a module, choose M here: the 1682 module will be called w83977f_wdt. 1683 1684config MACHZ_WDT 1685 tristate "ZF MachZ Watchdog" 1686 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1687 help 1688 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1689 N. This is the driver for the watchdog timer built-in on that 1690 processor using ZF-Logic interface. This watchdog simply watches 1691 your kernel to make sure it doesn't freeze, and if it does, it 1692 reboots your computer after a certain amount of time. 1693 1694 To compile this driver as a module, choose M here: the 1695 module will be called machzwd. 1696 1697config SBC_EPX_C3_WATCHDOG 1698 tristate "Winsystems SBC EPX-C3 watchdog" 1699 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1700 help 1701 This is the driver for the built-in watchdog timer on the EPX-C3 1702 Single-board computer made by Winsystems, Inc. 1703 1704 *Note*: This hardware watchdog is not probeable and thus there 1705 is no way to know if writing to its IO address will corrupt 1706 your system or have any real effect. The only way to be sure 1707 that this driver does what you want is to make sure you 1708 are running it on an EPX-C3 from Winsystems with the watchdog 1709 timer at IO address 0x1ee and 0x1ef. It will write to both those 1710 IO ports. Basically, the assumption is made that if you compile 1711 this driver into your kernel and/or load it as a module, that you 1712 know what you are doing and that you are in fact running on an 1713 EPX-C3 board! 1714 1715 To compile this driver as a module, choose M here: the 1716 module will be called sbc_epx_c3. 1717 1718config INTEL_MEI_WDT 1719 tristate "Intel MEI iAMT Watchdog" 1720 depends on INTEL_MEI && X86 1721 select WATCHDOG_CORE 1722 help 1723 A device driver for the Intel MEI iAMT watchdog. 1724 1725 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1726 Whenever the OS hangs or crashes, iAMT will send an event 1727 to any subscriber to this event. The watchdog doesn't reset the 1728 the platform. 1729 1730 To compile this driver as a module, choose M here: 1731 the module will be called mei_wdt. 1732 1733config NI903X_WDT 1734 tristate "NI 903x/913x Watchdog" 1735 depends on X86 && ACPI 1736 select WATCHDOG_CORE 1737 help 1738 This is the driver for the watchdog timer on the National Instruments 1739 903x/913x real-time controllers. 1740 1741 To compile this driver as a module, choose M here: the module will be 1742 called ni903x_wdt. 1743 1744config NIC7018_WDT 1745 tristate "NIC7018 Watchdog" 1746 depends on HAS_IOPORT 1747 depends on ACPI || COMPILE_TEST 1748 select WATCHDOG_CORE 1749 help 1750 Support for National Instruments NIC7018 Watchdog. 1751 1752 To compile this driver as a module, choose M here: the module will be 1753 called nic7018_wdt. 1754 1755config SIEMENS_SIMATIC_IPC_WDT 1756 tristate "Siemens Simatic IPC Watchdog" 1757 depends on SIEMENS_SIMATIC_IPC && PCI 1758 default y 1759 select WATCHDOG_CORE 1760 select P2SB if X86 1761 help 1762 This driver adds support for several watchdogs found in Industrial 1763 PCs from Siemens. 1764 1765 To compile this driver as a module, choose M here: the module will be 1766 called simatic-ipc-wdt. 1767 1768# M68K Architecture 1769 1770config M54xx_WATCHDOG 1771 tristate "MCF54xx watchdog support" 1772 depends on M548x 1773 help 1774 To compile this driver as a module, choose M here: the 1775 module will be called m54xx_wdt. 1776 1777# MicroBlaze Architecture 1778 1779# MIPS Architecture 1780 1781config ATH79_WDT 1782 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1783 depends on ATH79 || (ARM && COMPILE_TEST) 1784 help 1785 Hardware driver for the built-in watchdog timer on the Atheros 1786 AR71XX/AR724X/AR913X SoCs. 1787 1788config BCM47XX_WDT 1789 tristate "Broadcom BCM47xx Watchdog Timer" 1790 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1791 select WATCHDOG_CORE 1792 help 1793 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1794 1795config RC32434_WDT 1796 tristate "IDT RC32434 SoC Watchdog Timer" 1797 depends on MIKROTIK_RB532 1798 help 1799 Hardware driver for the IDT RC32434 SoC built-in 1800 watchdog timer. 1801 1802 To compile this driver as a module, choose M here: the 1803 module will be called rc32434_wdt. 1804 1805config INDYDOG 1806 tristate "Indy/I2 Hardware Watchdog" 1807 depends on SGI_HAS_INDYDOG 1808 help 1809 Hardware driver for the Indy's/I2's watchdog. This is a 1810 watchdog timer that will reboot the machine after a 60 second 1811 timer expired and no process has written to /dev/watchdog during 1812 that time. 1813 1814config JZ4740_WDT 1815 tristate "Ingenic jz4740 SoC hardware watchdog" 1816 depends on MIPS || COMPILE_TEST 1817 depends on COMMON_CLK 1818 select WATCHDOG_CORE 1819 select MFD_SYSCON 1820 help 1821 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1822 1823config WDT_MTX1 1824 tristate "MTX-1 Hardware Watchdog" 1825 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1826 help 1827 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1828 will reboot the machine after a 100 seconds timer expired. 1829 1830config SIBYTE_WDOG 1831 tristate "Sibyte SoC hardware watchdog" 1832 depends on CPU_SB1 1833 help 1834 Watchdog driver for the built in watchdog hardware in Sibyte 1835 SoC processors. There are apparently two watchdog timers 1836 on such processors; this driver supports only the first one, 1837 because currently Linux only supports exporting one watchdog 1838 to userspace. 1839 1840 To compile this driver as a loadable module, choose M here. 1841 The module will be called sb_wdog. 1842 1843config TXX9_WDT 1844 tristate "Toshiba TXx9 Watchdog Timer" 1845 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1846 select WATCHDOG_CORE 1847 help 1848 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1849 1850config OCTEON_WDT 1851 tristate "Cavium OCTEON SOC family Watchdog Timer" 1852 depends on CAVIUM_OCTEON_SOC 1853 default y 1854 select WATCHDOG_CORE 1855 select EXPORT_UASM if OCTEON_WDT = m 1856 help 1857 Hardware driver for OCTEON's on chip watchdog timer. 1858 Enables the watchdog for all cores running Linux. It 1859 installs a NMI handler and pokes the watchdog based on an 1860 interrupt. On first expiration of the watchdog, the 1861 interrupt handler pokes it. The second expiration causes an 1862 NMI that prints a message. The third expiration causes a 1863 global soft reset. 1864 1865 When userspace has /dev/watchdog open, no poking is done 1866 from the first interrupt, it is then only poked when the 1867 device is written. 1868 1869config MARVELL_GTI_WDT 1870 tristate "Marvell GTI Watchdog driver" 1871 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1872 default y 1873 select WATCHDOG_CORE 1874 help 1875 Marvell GTI hardware supports watchdog timer. First timeout 1876 works as watchdog pretimeout and installed interrupt handler 1877 will be called on first timeout. Hardware can generate interrupt 1878 to SCP on second timeout but it is not enabled, so second 1879 timeout is ignored. If device poke does not happen then system 1880 will reboot on third timeout. 1881 1882config BCM2835_WDT 1883 tristate "Broadcom BCM2835 hardware watchdog" 1884 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1885 select WATCHDOG_CORE 1886 help 1887 Watchdog driver for the built in watchdog hardware in Broadcom 1888 BCM2835 SoC. 1889 1890 To compile this driver as a loadable module, choose M here. 1891 The module will be called bcm2835_wdt. 1892 1893config BCM_KONA_WDT 1894 tristate "BCM Kona Watchdog" 1895 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1896 select WATCHDOG_CORE 1897 help 1898 Support for the watchdog timer on the following Broadcom BCM281xx 1899 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1900 BCM28155 variants. 1901 1902 Say 'Y' or 'M' here to enable the driver. The module will be called 1903 bcm_kona_wdt. 1904 1905config BCM_KONA_WDT_DEBUG 1906 bool "DEBUGFS support for BCM Kona Watchdog" 1907 depends on BCM_KONA_WDT || COMPILE_TEST 1908 help 1909 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1910 access to the driver's internal data structures as well as watchdog 1911 timer hardware registres. 1912 1913 If in doubt, say 'N'. 1914 1915config BCM7038_WDT 1916 tristate "BCM63xx/BCM7038 Watchdog" 1917 select WATCHDOG_CORE 1918 depends on HAS_IOMEM 1919 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1920 help 1921 Watchdog driver for the built-in hardware in Broadcom 7038 and 1922 later SoCs used in set-top boxes. BCM7038 was made public 1923 during the 2004 CES, and since then, many Broadcom chips use this 1924 watchdog block, including some cable modem chips and DSL (63xx) 1925 chips. 1926 1927config IMGPDC_WDT 1928 tristate "Imagination Technologies PDC Watchdog Timer" 1929 depends on HAS_IOMEM 1930 depends on MIPS || COMPILE_TEST 1931 select WATCHDOG_CORE 1932 help 1933 Driver for Imagination Technologies PowerDown Controller 1934 Watchdog Timer. 1935 1936 To compile this driver as a loadable module, choose M here. 1937 The module will be called imgpdc_wdt. 1938 1939config LANTIQ_WDT 1940 tristate "Lantiq SoC watchdog" 1941 depends on LANTIQ 1942 select WATCHDOG_CORE 1943 help 1944 Hardware driver for the Lantiq SoC Watchdog Timer. 1945 1946config LOONGSON1_WDT 1947 tristate "Loongson1 SoC hardware watchdog" 1948 depends on MACH_LOONGSON32 || COMPILE_TEST 1949 select WATCHDOG_CORE 1950 help 1951 Hardware driver for the Loongson1 SoC Watchdog Timer. 1952 1953config RALINK_WDT 1954 tristate "Ralink SoC watchdog" 1955 select WATCHDOG_CORE 1956 depends on RALINK 1957 help 1958 Hardware driver for the Ralink SoC Watchdog Timer. 1959 1960config GXP_WATCHDOG 1961 tristate "HPE GXP watchdog support" 1962 depends on ARCH_HPE_GXP || COMPILE_TEST 1963 select WATCHDOG_CORE 1964 help 1965 Say Y here to include support for the watchdog timer 1966 in HPE GXP SoCs. 1967 1968 To compile this driver as a module, choose M here. 1969 The module will be called gxp-wdt. 1970 1971config MT7621_WDT 1972 tristate "Mediatek SoC watchdog" 1973 select WATCHDOG_CORE 1974 select REGMAP_MMIO 1975 select MFD_SYSCON 1976 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1977 help 1978 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1979 1980config PIC32_WDT 1981 tristate "Microchip PIC32 hardware watchdog" 1982 select WATCHDOG_CORE 1983 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1984 help 1985 Watchdog driver for the built in watchdog hardware in a PIC32. 1986 1987 Configuration bits must be set appropriately for the watchdog to be 1988 controlled by this driver. 1989 1990 To compile this driver as a loadable module, choose M here. 1991 The module will be called pic32-wdt. 1992 1993config PIC32_DMT 1994 tristate "Microchip PIC32 Deadman Timer" 1995 select WATCHDOG_CORE 1996 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1997 help 1998 Watchdog driver for PIC32 instruction fetch counting timer. This 1999 specific timer is typically be used in mission critical and safety 2000 critical applications, where any single failure of the software 2001 functionality and sequencing must be detected. 2002 2003 To compile this driver as a loadable module, choose M here. 2004 The module will be called pic32-dmt. 2005 2006# PARISC Architecture 2007 2008# POWERPC Architecture 2009 2010config GEF_WDT 2011 tristate "GE Watchdog Timer" 2012 depends on GE_FPGA 2013 help 2014 Watchdog timer found in a number of GE single board computers. 2015 2016config MPC5200_WDT 2017 bool "MPC52xx Watchdog Timer" 2018 depends on PPC_MPC52xx || COMPILE_TEST 2019 help 2020 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2021 2022config 8xxx_WDT 2023 tristate "MPC8xxx Platform Watchdog Timer" 2024 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2025 select WATCHDOG_CORE 2026 help 2027 This driver is for a SoC level watchdog that exists on some 2028 Freescale PowerPC processors. So far this driver supports: 2029 - MPC8xx watchdogs 2030 - MPC83xx watchdogs 2031 - MPC86xx watchdogs 2032 2033 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2034 2035config PIKA_WDT 2036 tristate "PIKA FPGA Watchdog" 2037 depends on WARP || (PPC64 && COMPILE_TEST) 2038 default y 2039 help 2040 This enables the watchdog in the PIKA FPGA. Currently used on 2041 the Warp platform. 2042 2043config BOOKE_WDT 2044 tristate "PowerPC Book-E Watchdog Timer" 2045 depends on BOOKE || 4xx 2046 select WATCHDOG_CORE 2047 help 2048 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2049 MPC85xx SOCs and the IBM PowerPC 440. 2050 2051 Please see Documentation/watchdog/watchdog-api.rst for 2052 more information. 2053 2054config BOOKE_WDT_DEFAULT_TIMEOUT 2055 int "PowerPC Book-E Watchdog Timer Default Timeout" 2056 depends on BOOKE_WDT 2057 default 38 if PPC_E500 2058 range 0 63 if PPC_E500 2059 default 3 if !PPC_E500 2060 range 0 3 if !PPC_E500 2061 help 2062 Select the default watchdog timer period to be used by the PowerPC 2063 Book-E watchdog driver. A watchdog "event" occurs when the bit 2064 position represented by this number transitions from zero to one. 2065 2066 For Freescale Book-E processors, this is a number between 0 and 63. 2067 For other Book-E processors, this is a number between 0 and 3. 2068 2069 The value can be overridden by the wdt_period command-line parameter. 2070 2071config MEN_A21_WDT 2072 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2073 select WATCHDOG_CORE 2074 depends on GPIOLIB || COMPILE_TEST 2075 help 2076 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2077 2078 The driver can also be built as a module. If so, the module will be 2079 called mena21_wdt. 2080 2081 If unsure select N here. 2082 2083# PPC64 Architecture 2084 2085config PSERIES_WDT 2086 tristate "POWER Architecture Platform Watchdog Timer" 2087 depends on PPC_PSERIES 2088 select WATCHDOG_CORE 2089 help 2090 Driver for virtual watchdog timers provided by PAPR 2091 hypervisors (e.g. PowerVM, KVM). 2092 2093config WATCHDOG_RTAS 2094 tristate "RTAS watchdog" 2095 depends on PPC_RTAS 2096 help 2097 This driver adds watchdog support for the RTAS watchdog. 2098 2099 To compile this driver as a module, choose M here. The module 2100 will be called wdrtas. 2101 2102# RISC-V Architecture 2103 2104config STARFIVE_WATCHDOG 2105 tristate "StarFive Watchdog support" 2106 depends on ARCH_STARFIVE || COMPILE_TEST 2107 select WATCHDOG_CORE 2108 default ARCH_STARFIVE 2109 help 2110 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2111 SoC. This driver can also be built as a module if choose M. 2112 2113# S390 Architecture 2114 2115config DIAG288_WATCHDOG 2116 tristate "System z diag288 Watchdog" 2117 depends on S390 2118 select WATCHDOG_CORE 2119 help 2120 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2121 provide a virtual watchdog timer to their guest that cause a 2122 user define Control Program command to be executed after a 2123 timeout. 2124 LPAR provides a very similar interface. This driver handles 2125 both. 2126 2127 To compile this driver as a module, choose M here. The module 2128 will be called diag288_wdt. 2129 2130# SUPERH (sh + sh64) Architecture 2131 2132config SH_WDT 2133 tristate "SuperH Watchdog" 2134 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2135 select WATCHDOG_CORE 2136 help 2137 This driver adds watchdog support for the integrated watchdog in the 2138 SuperH processors. If you have one of these processors and wish 2139 to have watchdog support enabled, say Y, otherwise say N. 2140 2141 As a side note, saying Y here will automatically boost HZ to 1000 2142 so that the timer has a chance to clear the overflow counter. On 2143 slower systems (such as the SH-2 and SH-3) this will likely yield 2144 some performance issues. As such, the WDT should be avoided here 2145 unless it is absolutely necessary. 2146 2147 To compile this driver as a module, choose M here: the 2148 module will be called shwdt. 2149 2150# SPARC Architecture 2151 2152# SPARC64 Architecture 2153 2154config WATCHDOG_CP1XXX 2155 tristate "CP1XXX Hardware Watchdog support" 2156 depends on SPARC64 && PCI 2157 help 2158 This is the driver for the hardware watchdog timers present on 2159 Sun Microsystems CompactPCI models CP1400 and CP1500. 2160 2161 To compile this driver as a module, choose M here: the 2162 module will be called cpwatchdog. 2163 2164 If you do not have a CompactPCI model CP1400 or CP1500, or 2165 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2166 you should say N to this option. 2167 2168config WATCHDOG_RIO 2169 tristate "RIO Hardware Watchdog support" 2170 depends on SPARC64 && PCI 2171 help 2172 Say Y here to support the hardware watchdog capability on Sun RIO 2173 machines. The watchdog timeout period is normally one minute but 2174 can be changed with a boot-time parameter. 2175 2176config WATCHDOG_SUN4V 2177 tristate "Sun4v Watchdog support" 2178 select WATCHDOG_CORE 2179 depends on SPARC64 2180 help 2181 Say Y here to support the hypervisor watchdog capability embedded 2182 in the SPARC sun4v architecture. 2183 2184 To compile this driver as a module, choose M here. The module will 2185 be called sun4v_wdt. 2186 2187# XTENSA Architecture 2188 2189# Xen Architecture 2190 2191config XEN_WDT 2192 tristate "Xen Watchdog support" 2193 depends on XEN 2194 select WATCHDOG_CORE 2195 help 2196 Say Y here to support the hypervisor watchdog capability provided 2197 by Xen 4.0 and newer. The watchdog timeout period is normally one 2198 minute but can be changed with a boot-time parameter. 2199 2200config UML_WATCHDOG 2201 tristate "UML watchdog" 2202 depends on UML || COMPILE_TEST 2203 2204# 2205# ISA-based Watchdog Cards 2206# 2207 2208comment "ISA-based Watchdog Cards" 2209 depends on ISA 2210 2211config PCWATCHDOG 2212 tristate "Berkshire Products ISA-PC Watchdog" 2213 depends on ISA 2214 help 2215 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2216 This card simply watches your kernel to make sure it doesn't freeze, 2217 and if it does, it reboots your computer after a certain amount of 2218 time. This driver is like the WDT501 driver but for different 2219 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2220 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2221 2222 To compile this driver as a module, choose M here: the 2223 module will be called pcwd. 2224 2225 Most people will say N. 2226 2227config MIXCOMWD 2228 tristate "Mixcom Watchdog" 2229 depends on ISA 2230 help 2231 This is a driver for the Mixcom hardware watchdog cards. This 2232 watchdog simply watches your kernel to make sure it doesn't freeze, 2233 and if it does, it reboots your computer after a certain amount of 2234 time. 2235 2236 To compile this driver as a module, choose M here: the 2237 module will be called mixcomwd. 2238 2239 Most people will say N. 2240 2241config WDT 2242 tristate "WDT Watchdog timer" 2243 depends on ISA 2244 help 2245 If you have a WDT500P or WDT501P watchdog board, say Y here, 2246 otherwise N. It is not possible to probe for this board, which means 2247 that you have to inform the kernel about the IO port and IRQ that 2248 is needed (you can do this via the io and irq parameters) 2249 2250 To compile this driver as a module, choose M here: the 2251 module will be called wdt. 2252 2253# 2254# PCI-based Watchdog Cards 2255# 2256 2257comment "PCI-based Watchdog Cards" 2258 depends on PCI 2259 2260config PCIPCWATCHDOG 2261 tristate "Berkshire Products PCI-PC Watchdog" 2262 depends on PCI && HAS_IOPORT 2263 help 2264 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2265 This card simply watches your kernel to make sure it doesn't freeze, 2266 and if it does, it reboots your computer after a certain amount of 2267 time. The card can also monitor the internal temperature of the PC. 2268 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2269 2270 To compile this driver as a module, choose M here: the 2271 module will be called pcwd_pci. 2272 2273 Most people will say N. 2274 2275config WDTPCI 2276 tristate "PCI-WDT500/501 Watchdog timer" 2277 depends on PCI && HAS_IOPORT 2278 help 2279 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2280 2281 If you have a PCI-WDT501 watchdog board then you can enable the 2282 temperature sensor by setting the type parameter to 501. 2283 2284 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2285 can do this via the tachometer parameter. Only do this if you have a 2286 fan tachometer actually set up. 2287 2288 To compile this driver as a module, choose M here: the 2289 module will be called wdt_pci. 2290 2291# 2292# USB-based Watchdog Cards 2293# 2294 2295comment "USB-based Watchdog Cards" 2296 depends on USB 2297 2298config USBPCWATCHDOG 2299 tristate "Berkshire Products USB-PC Watchdog" 2300 depends on USB 2301 help 2302 This is the driver for the Berkshire Products USB-PC Watchdog card. 2303 This card simply watches your kernel to make sure it doesn't freeze, 2304 and if it does, it reboots your computer after a certain amount of 2305 time. The card can also monitor the internal temperature of the PC. 2306 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2307 2308 To compile this driver as a module, choose M here: the 2309 module will be called pcwd_usb. 2310 2311 Most people will say N. 2312 2313config KEEMBAY_WATCHDOG 2314 tristate "Intel Keem Bay SoC non-secure watchdog" 2315 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2316 select WATCHDOG_CORE 2317 help 2318 This option enable support for an In-secure watchdog timer driver for 2319 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2320 count unit. An interrupt will be triggered, when the count crosses 2321 the threshold configured in the register. 2322 2323 To compile this driver as a module, choose M here: the 2324 module will be called keembay_wdt. 2325 2326endif # WATCHDOG 2327