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 MENF21BMC_WATCHDOG 283 tristate "MEN 14F021P00 BMC Watchdog" 284 depends on MFD_MENF21BMC || COMPILE_TEST 285 depends on I2C 286 select WATCHDOG_CORE 287 help 288 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 289 290 This driver can also be built as a module. If so the module 291 will be called menf21bmc_wdt. 292 293config MENZ069_WATCHDOG 294 tristate "MEN 16Z069 Watchdog" 295 depends on MCB 296 select WATCHDOG_CORE 297 help 298 Say Y here to include support for the MEN 16Z069 Watchdog. 299 300 This driver can also be built as a module. If so the module 301 will be called menz069_wdt. 302 303config WDAT_WDT 304 tristate "ACPI Watchdog Action Table (WDAT)" 305 depends on ACPI 306 select WATCHDOG_CORE 307 select ACPI_WATCHDOG 308 help 309 This driver adds support for systems with ACPI Watchdog Action 310 Table (WDAT) table. Servers typically have this but it can be 311 found on some desktop machines as well. This driver will take 312 over the native iTCO watchdog driver found on many Intel CPUs. 313 314 To compile this driver as module, choose M here: the module will 315 be called wdat_wdt. 316 317config WM831X_WATCHDOG 318 tristate "WM831x watchdog" 319 depends on MFD_WM831X 320 select WATCHDOG_CORE 321 help 322 Support for the watchdog in the WM831x AudioPlus PMICs. When 323 the watchdog triggers the system will be reset. 324 325config WM8350_WATCHDOG 326 tristate "WM8350 watchdog" 327 depends on MFD_WM8350 328 select WATCHDOG_CORE 329 help 330 Support for the watchdog in the WM8350 AudioPlus PMIC. When 331 the watchdog triggers the system will be reset. 332 333config XILINX_WATCHDOG 334 tristate "Xilinx Watchdog timer" 335 depends on HAS_IOMEM 336 select WATCHDOG_CORE 337 help 338 Watchdog driver for the xps_timebase_wdt IP core. 339 340 To compile this driver as a module, choose M here: the 341 module will be called of_xilinx_wdt. 342 343config XILINX_WINDOW_WATCHDOG 344 tristate "Xilinx window watchdog timer" 345 depends on HAS_IOMEM 346 depends on ARM64 || COMPILE_TEST 347 select WATCHDOG_CORE 348 help 349 Window watchdog driver for the versal_wwdt IP core. 350 Window watchdog timer(WWDT) contains closed(first) and 351 open(second) window with 32 bit width. Write to the watchdog 352 timer within predefined window periods of time. This means 353 a period that is not too soon and a period that is not too 354 late. The WWDT has to be restarted within the open window time. 355 If software tries to restart WWDT outside of the open window 356 time period, it generates a reset. 357 358 To compile this driver as a module, choose M here: the 359 module will be called xilinx_wwdt. 360 361config ZIIRAVE_WATCHDOG 362 tristate "Zodiac RAVE Watchdog Timer" 363 depends on I2C 364 select WATCHDOG_CORE 365 help 366 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 367 Processor. 368 369 To compile this driver as a module, choose M here: the 370 module will be called ziirave_wdt. 371 372config RAVE_SP_WATCHDOG 373 tristate "RAVE SP Watchdog timer" 374 depends on RAVE_SP_CORE 375 depends on NVMEM || !NVMEM 376 select WATCHDOG_CORE 377 help 378 Support for the watchdog on RAVE SP device. 379 380config MLX_WDT 381 tristate "Mellanox Watchdog" 382 depends on MELLANOX_PLATFORM || COMPILE_TEST 383 select WATCHDOG_CORE 384 select REGMAP 385 help 386 This is the driver for the hardware watchdog on Mellanox systems. 387 If you are going to use it, say Y here, otherwise N. 388 This driver can be used together with the watchdog daemon. 389 It can also watch your kernel to make sure it doesn't freeze, 390 and if it does, it reboots your system after a certain amount of 391 time. 392 393 To compile this driver as a module, choose M here: the 394 module will be called mlx-wdt. 395 396config SL28CPLD_WATCHDOG 397 tristate "Kontron sl28cpld Watchdog" 398 depends on MFD_SL28CPLD || COMPILE_TEST 399 select WATCHDOG_CORE 400 help 401 Say Y here to include support for the watchdog timer 402 on the Kontron sl28 CPLD. 403 404 To compile this driver as a module, choose M here: the 405 module will be called sl28cpld_wdt. 406 407# ALPHA Architecture 408 409# ARM Architecture 410 411config AIROHA_WATCHDOG 412 tristate "Airoha EN7581 Watchdog" 413 depends on ARCH_AIROHA || COMPILE_TEST 414 select WATCHDOG_CORE 415 help 416 Watchdog timer embedded into Airoha SoC. This will reboot your 417 system when the timeout is reached. 418 419config ARM_SP805_WATCHDOG 420 tristate "ARM SP805 Watchdog" 421 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 422 select WATCHDOG_CORE 423 help 424 ARM Primecell SP805 Watchdog timer. This will reboot your system when 425 the timeout is reached. 426 427config ARM_SBSA_WATCHDOG 428 tristate "ARM SBSA Generic Watchdog" 429 depends on ARM64 430 depends on ARM_ARCH_TIMER 431 select WATCHDOG_CORE 432 help 433 ARM SBSA Generic Watchdog has two stage timeouts: 434 the first signal (WS0) is for alerting the system by interrupt, 435 the second one (WS1) is a real hardware reset. 436 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 437 438 This driver can operate ARM SBSA Generic Watchdog as a single stage 439 or a two stages watchdog, it depends on the module parameter "action". 440 441 Note: the maximum timeout in the two stages mode is half of that in 442 the single stage mode. 443 444 To compile this driver as module, choose M here: The module 445 will be called sbsa_gwdt. 446 447config ARMADA_37XX_WATCHDOG 448 tristate "Armada 37xx watchdog" 449 depends on ARCH_MVEBU || COMPILE_TEST 450 depends on HAS_IOMEM 451 select MFD_SYSCON 452 select WATCHDOG_CORE 453 help 454 Say Y here to include support for the watchdog timer found on 455 Marvell Armada 37xx SoCs. 456 To compile this driver as a module, choose M here: the 457 module will be called armada_37xx_wdt. 458 459config ASM9260_WATCHDOG 460 tristate "Alphascale ASM9260 watchdog" 461 depends on MACH_ASM9260 || COMPILE_TEST 462 depends on OF 463 select WATCHDOG_CORE 464 select RESET_CONTROLLER 465 help 466 Watchdog timer embedded into Alphascale asm9260 chips. This will 467 reboot your system when the timeout is reached. 468 469config AT91RM9200_WATCHDOG 470 tristate "AT91RM9200 watchdog" 471 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 472 help 473 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 474 system when the timeout is reached. 475 476config AT91SAM9X_WATCHDOG 477 tristate "AT91SAM9X / AT91CAP9 watchdog" 478 depends on ARCH_AT91 || COMPILE_TEST 479 select WATCHDOG_CORE 480 help 481 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 482 reboot your system when the timeout is reached. 483 484config SAMA5D4_WATCHDOG 485 tristate "Atmel SAMA5D4 Watchdog Timer" 486 depends on ARCH_AT91 || COMPILE_TEST 487 select WATCHDOG_CORE 488 help 489 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 490 Its Watchdog Timer Mode Register can be written more than once. 491 This will reboot your system when the timeout is reached. 492 493config CADENCE_WATCHDOG 494 tristate "Cadence Watchdog Timer" 495 depends on HAS_IOMEM 496 select WATCHDOG_CORE 497 help 498 Say Y here if you want to include support for the watchdog 499 timer in the Xilinx Zynq. 500 501config 21285_WATCHDOG 502 tristate "DC21285 watchdog" 503 depends on FOOTBRIDGE 504 help 505 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 506 here if you wish to use this. Alternatively say M to compile the 507 driver as a module, which will be called wdt285. 508 509 This driver does not work on all machines. In particular, early CATS 510 boards have hardware problems that will cause the machine to simply 511 lock up if the watchdog fires. 512 513 "If in doubt, leave it out" - say N. 514 515config 977_WATCHDOG 516 tristate "NetWinder WB83C977 watchdog" 517 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 518 depends on HAS_IOPORT 519 help 520 Say Y here to include support for the WB977 watchdog included in 521 NetWinder machines. Alternatively say M to compile the driver as 522 a module, which will be called wdt977. 523 524 Not sure? It's safe to say N. 525 526config FTWDT010_WATCHDOG 527 tristate "Faraday Technology FTWDT010 watchdog" 528 depends on ARM || COMPILE_TEST 529 select WATCHDOG_CORE 530 default ARCH_GEMINI 531 help 532 Say Y here if to include support for the Faraday Technology 533 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 534 family of devices. 535 536 To compile this driver as a module, choose M here: the 537 module will be called ftwdt010_wdt. 538 539config IXP4XX_WATCHDOG 540 tristate "IXP4xx Watchdog" 541 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 542 select WATCHDOG_CORE 543 help 544 Say Y here if to include support for the watchdog timer 545 in the Intel IXP4xx network processors. This driver can 546 be built as a module by choosing M. The module will 547 be called ixp4xx_wdt. 548 549 Note: The internal IXP4xx watchdog does a soft CPU reset 550 which doesn't reset any peripherals. There are circumstances 551 where the watchdog will fail to reset the board correctly 552 (e.g., if the boot ROM is in an unreadable state). 553 554 Say N if you are unsure. 555 556config S3C2410_WATCHDOG 557 tristate "S3C6410/S5Pv210/Exynos Watchdog" 558 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 559 select WATCHDOG_CORE 560 select MFD_SYSCON if ARCH_EXYNOS 561 help 562 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 563 SoCs. This will reboot the system when the timer expires with 564 the watchdog enabled. 565 566 The driver is limited by the speed of the system's PCLK 567 signal, so with reasonably fast systems (PCLK around 50-66MHz) 568 then watchdog intervals of over approximately 20seconds are 569 unavailable. 570 571 Choose Y/M here only if you build for such Samsung SoC. 572 The driver can be built as a module by choosing M, and will 573 be called s3c2410_wdt. 574 575config SA1100_WATCHDOG 576 tristate "SA1100/PXA2xx watchdog" 577 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 578 help 579 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 580 reboot your system when timeout is reached. 581 582 NOTE: once enabled, this timer cannot be disabled. 583 584 To compile this driver as a module, choose M here: the 585 module will be called sa1100_wdt. 586 587config DW_WATCHDOG 588 tristate "Synopsys DesignWare watchdog" 589 depends on HAS_IOMEM 590 select WATCHDOG_CORE 591 help 592 Say Y here if to include support for the Synopsys DesignWare 593 watchdog timer found in many chips. 594 To compile this driver as a module, choose M here: the 595 module will be called dw_wdt. 596 597config EP93XX_WATCHDOG 598 tristate "EP93xx Watchdog" 599 depends on ARCH_EP93XX || COMPILE_TEST 600 select WATCHDOG_CORE 601 help 602 Say Y here if to include support for the watchdog timer 603 embedded in the Cirrus Logic EP93xx family of devices. 604 605 To compile this driver as a module, choose M here: the 606 module will be called ep93xx_wdt. 607 608config OMAP_WATCHDOG 609 tristate "OMAP Watchdog" 610 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 611 select WATCHDOG_CORE 612 help 613 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 614 Say 'Y' here to enable the 615 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 616 617config PNX4008_WATCHDOG 618 tristate "LPC32XX Watchdog" 619 depends on ARCH_LPC32XX || COMPILE_TEST 620 select WATCHDOG_CORE 621 help 622 Say Y here if to include support for the watchdog timer 623 in the LPC32XX processor. 624 This driver can be built as a module by choosing M. The module 625 will be called pnx4008_wdt. 626 627 Say N if you are unsure. 628 629config DAVINCI_WATCHDOG 630 tristate "DaVinci watchdog" 631 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 632 select WATCHDOG_CORE 633 help 634 Say Y here if to include support for the watchdog timer 635 in the DaVinci DM644x/DM646x or Keystone processors. 636 To compile this driver as a module, choose M here: the 637 module will be called davinci_wdt. 638 639 NOTE: once enabled, this timer cannot be disabled. 640 Say N if you are unsure. 641 642config K3_RTI_WATCHDOG 643 tristate "Texas Instruments K3 RTI watchdog" 644 depends on ARCH_K3 || COMPILE_TEST 645 select WATCHDOG_CORE 646 help 647 Say Y here if you want to include support for the K3 watchdog 648 timer (RTI module) available in the K3 generation of processors. 649 650config ORION_WATCHDOG 651 tristate "Orion watchdog" 652 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 653 depends on ARM 654 select WATCHDOG_CORE 655 help 656 Say Y here if to include support for the watchdog timer 657 in the Marvell Orion5x and Kirkwood ARM SoCs. 658 To compile this driver as a module, choose M here: the 659 module will be called orion_wdt. 660 661config RN5T618_WATCHDOG 662 tristate "Ricoh RN5T618 watchdog" 663 depends on MFD_RN5T618 || COMPILE_TEST 664 select WATCHDOG_CORE 665 help 666 If you say yes here you get support for watchdog on the Ricoh 667 RN5T618 PMIC. 668 669 This driver can also be built as a module. If so, the module 670 will be called rn5t618_wdt. 671 672config SUNXI_WATCHDOG 673 tristate "Allwinner SoCs watchdog support" 674 depends on ARCH_SUNXI || COMPILE_TEST 675 select WATCHDOG_CORE 676 help 677 Say Y here to include support for the watchdog timer 678 in Allwinner SoCs. 679 To compile this driver as a module, choose M here: the 680 module will be called sunxi_wdt. 681 682config NPCM7XX_WATCHDOG 683 tristate "Nuvoton NPCM750 watchdog" 684 depends on ARCH_NPCM || COMPILE_TEST 685 default y if ARCH_NPCM7XX 686 select WATCHDOG_CORE 687 help 688 Say Y here to include Watchdog timer support for the 689 watchdog embedded into the NPCM7xx. 690 This watchdog is used to reset the system and thus cannot be 691 compiled as a module. 692 693config TWL4030_WATCHDOG 694 tristate "TWL4030 Watchdog" 695 depends on TWL4030_CORE 696 select WATCHDOG_CORE 697 help 698 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 699 watchdog timer support for TWL4030 chips. 700 701config STMP3XXX_RTC_WATCHDOG 702 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 703 depends on RTC_DRV_STMP || COMPILE_TEST 704 select WATCHDOG_CORE 705 help 706 Say Y here to include support for the watchdog timer inside 707 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 708 To compile this driver as a module, choose M here: the 709 module will be called stmp3xxx_rtc_wdt. 710 711config TS4800_WATCHDOG 712 tristate "TS-4800 Watchdog" 713 depends on HAS_IOMEM && OF 714 depends on SOC_IMX51 || COMPILE_TEST 715 select WATCHDOG_CORE 716 select MFD_SYSCON 717 help 718 Technologic Systems TS-4800 has watchdog timer implemented in 719 an external FPGA. Say Y here if you want to support for the 720 watchdog timer on TS-4800 board. 721 722config TS72XX_WATCHDOG 723 tristate "TS-72XX SBC Watchdog" 724 depends on MACH_TS72XX || COMPILE_TEST 725 select WATCHDOG_CORE 726 help 727 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 728 watchdog timer implemented in a external CPLD chip. Say Y here 729 if you want to support for the watchdog timer on TS-72XX boards. 730 731 To compile this driver as a module, choose M here: the 732 module will be called ts72xx_wdt. 733 734config MAX63XX_WATCHDOG 735 tristate "Max63xx watchdog" 736 depends on HAS_IOMEM 737 select WATCHDOG_CORE 738 help 739 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 740 741config MAX77620_WATCHDOG 742 tristate "Maxim Max77620 Watchdog Timer" 743 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 744 select WATCHDOG_CORE 745 help 746 This is the driver for the Max77620 watchdog timer. 747 Say 'Y' here to enable the watchdog timer support for 748 MAX77620 chips. To compile this driver as a module, 749 choose M here: the module will be called max77620_wdt. 750 751config IMX2_WDT 752 tristate "IMX2+ Watchdog" 753 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 754 select REGMAP_MMIO 755 select WATCHDOG_CORE 756 help 757 This is the driver for the hardware watchdog 758 on the Freescale IMX2 and later processors. 759 If you have one of these processors and wish to have 760 watchdog support enabled, say Y, otherwise say N. 761 762 To compile this driver as a module, choose M here: the 763 module will be called imx2_wdt. 764 765config IMX_SC_WDT 766 tristate "IMX SC Watchdog" 767 depends on HAVE_ARM_SMCCC 768 depends on IMX_SCU || COMPILE_TEST 769 select WATCHDOG_CORE 770 help 771 This is the driver for the system controller watchdog 772 on the NXP i.MX SoCs with system controller inside, the 773 watchdog driver will call ARM SMC API and trap into 774 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 775 will request system controller to execute the operations. 776 If you have one of these processors and wish to have 777 watchdog support enabled, say Y, otherwise say N. 778 779 To compile this driver as a module, choose M here: the 780 module will be called imx_sc_wdt. 781 782config IMX7ULP_WDT 783 tristate "IMX7ULP Watchdog" 784 depends on ARCH_MXC || COMPILE_TEST 785 select WATCHDOG_CORE 786 help 787 This is the driver for the hardware watchdog on the Freescale 788 IMX7ULP and later processors. If you have one of these 789 processors and wish to have watchdog support enabled, 790 say Y, otherwise say N. 791 792 To compile this driver as a module, choose M here: the 793 module will be called imx7ulp_wdt. 794 795config DB500_WATCHDOG 796 tristate "ST-Ericsson DB800 watchdog" 797 depends on MFD_DB8500_PRCMU 798 select WATCHDOG_CORE 799 default y 800 help 801 Say Y here to include Watchdog timer support for the watchdog 802 existing in the prcmu of ST-Ericsson DB8500 platform. 803 804 To compile this driver as a module, choose M here: the 805 module will be called db500_wdt. 806 807config RETU_WATCHDOG 808 tristate "Retu watchdog" 809 depends on MFD_RETU 810 select WATCHDOG_CORE 811 help 812 Retu watchdog driver for Nokia Internet Tablets (770, N800, 813 N810). At least on N800 the watchdog cannot be disabled, so 814 this driver is essential and you should enable it. 815 816 To compile this driver as a module, choose M here: the 817 module will be called retu_wdt. 818 819config MOXART_WDT 820 tristate "MOXART watchdog" 821 depends on ARCH_MOXART || COMPILE_TEST 822 help 823 Say Y here to include Watchdog timer support for the watchdog 824 existing on the MOXA ART SoC series platforms. 825 826 To compile this driver as a module, choose M here: the 827 module will be called moxart_wdt. 828 829config ST_LPC_WATCHDOG 830 tristate "STMicroelectronics LPC Watchdog" 831 depends on ARCH_STI || COMPILE_TEST 832 depends on OF 833 select WATCHDOG_CORE 834 help 835 Say Y here to include STMicroelectronics Low Power Controller 836 (LPC) based Watchdog timer support. 837 838 To compile this driver as a module, choose M here: the 839 module will be called st_lpc_wdt. 840 841config TEGRA_WATCHDOG 842 tristate "Tegra watchdog" 843 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 844 select WATCHDOG_CORE 845 help 846 Say Y here to include support for the watchdog timer 847 embedded in NVIDIA Tegra SoCs. 848 849 To compile this driver as a module, choose M here: the 850 module will be called tegra_wdt. 851 852config QCOM_WDT 853 tristate "QCOM watchdog" 854 depends on HAS_IOMEM 855 depends on ARCH_QCOM || COMPILE_TEST 856 select WATCHDOG_CORE 857 help 858 Say Y here to include Watchdog timer support for the watchdog found 859 on QCOM chipsets. Currently supported targets are the MSM8960, 860 APQ8064, and IPQ8064. 861 862 To compile this driver as a module, choose M here: the 863 module will be called qcom_wdt. 864 865config MESON_GXBB_WATCHDOG 866 tristate "Amlogic Meson GXBB SoCs watchdog support" 867 depends on ARCH_MESON || COMPILE_TEST 868 select WATCHDOG_CORE 869 help 870 Say Y here to include support for the watchdog timer 871 in Amlogic Meson GXBB SoCs. 872 To compile this driver as a module, choose M here: the 873 module will be called meson_gxbb_wdt. 874 875config MESON_WATCHDOG 876 tristate "Amlogic Meson SoCs watchdog support" 877 depends on ARCH_MESON || COMPILE_TEST 878 select WATCHDOG_CORE 879 help 880 Say Y here to include support for the watchdog timer 881 in Amlogic Meson SoCs. 882 To compile this driver as a module, choose M here: the 883 module will be called meson_wdt. 884 885config MEDIATEK_WATCHDOG 886 tristate "Mediatek SoCs watchdog support" 887 depends on ARCH_MEDIATEK || COMPILE_TEST 888 default ARCH_MEDIATEK 889 select WATCHDOG_CORE 890 select RESET_CONTROLLER 891 help 892 Say Y here to include support for the watchdog timer 893 in Mediatek SoCs. 894 To compile this driver as a module, choose M here: the 895 module will be called mtk_wdt. 896 897config DIGICOLOR_WATCHDOG 898 tristate "Conexant Digicolor SoCs watchdog support" 899 depends on ARCH_DIGICOLOR || COMPILE_TEST 900 select WATCHDOG_CORE 901 help 902 Say Y here to include support for the watchdog timer 903 in Conexant Digicolor SoCs. 904 To compile this driver as a module, choose M here: the 905 module will be called digicolor_wdt. 906 907config ARM_SMC_WATCHDOG 908 tristate "ARM Secure Monitor Call based watchdog support" 909 depends on ARM || ARM64 910 depends on OF 911 depends on HAVE_ARM_SMCCC 912 select WATCHDOG_CORE 913 help 914 Say Y here to include support for a watchdog timer 915 implemented by the EL3 Secure Monitor on ARM platforms. 916 Requires firmware support. 917 To compile this driver as a module, choose M here: the 918 module will be called arm_smc_wdt. 919 920config LPC18XX_WATCHDOG 921 tristate "LPC18xx/43xx Watchdog" 922 depends on ARCH_LPC18XX || COMPILE_TEST 923 depends on HAS_IOMEM 924 select WATCHDOG_CORE 925 help 926 Say Y here if to include support for the watchdog timer 927 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 928 processors. 929 To compile this driver as a module, choose M here: the 930 module will be called lpc18xx_wdt. 931 932config RENESAS_WDT 933 tristate "Renesas WDT Watchdog" 934 depends on ARCH_RENESAS || COMPILE_TEST 935 select WATCHDOG_CORE 936 help 937 This driver adds watchdog support for the integrated watchdogs in the 938 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 939 940config RENESAS_RZAWDT 941 tristate "Renesas RZ/A WDT Watchdog" 942 depends on ARCH_RENESAS || COMPILE_TEST 943 select WATCHDOG_CORE 944 help 945 This driver adds watchdog support for the integrated watchdogs in the 946 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 947 948config RENESAS_RZN1WDT 949 tristate "Renesas RZ/N1 watchdog" 950 depends on ARCH_RENESAS || COMPILE_TEST 951 select WATCHDOG_CORE 952 help 953 This driver adds watchdog support for the integrated watchdogs in the 954 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 955 956config RENESAS_RZG2LWDT 957 tristate "Renesas RZ/G2L WDT Watchdog" 958 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 959 depends on PM || COMPILE_TEST 960 select WATCHDOG_CORE 961 help 962 This driver adds watchdog support for the integrated watchdogs in the 963 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 964 965config RENESAS_RZV2HWDT 966 tristate "Renesas RZ/V2H(P) WDT Watchdog" 967 depends on ARCH_R9A09G057 || COMPILE_TEST 968 depends on PM || COMPILE_TEST 969 select WATCHDOG_CORE 970 help 971 This driver adds watchdog support for the integrated watchdogs in the 972 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system. 973 974config ASPEED_WATCHDOG 975 tristate "Aspeed BMC watchdog support" 976 depends on ARCH_ASPEED || COMPILE_TEST 977 select WATCHDOG_CORE 978 help 979 Say Y here to include support for the watchdog timer 980 in Aspeed BMC SoCs. 981 982 This driver is required to reboot the SoC. 983 984 To compile this driver as a module, choose M here: the 985 module will be called aspeed_wdt. 986 987config STM32_WATCHDOG 988 tristate "STM32 Independent WatchDoG (IWDG) support" 989 depends on ARCH_STM32 || COMPILE_TEST 990 select WATCHDOG_CORE 991 default y 992 help 993 Say Y here to include support for the watchdog timer 994 in stm32 SoCs. 995 996 To compile this driver as a module, choose M here: the 997 module will be called stm32_iwdg. 998 999config STPMIC1_WATCHDOG 1000 tristate "STPMIC1 PMIC watchdog support" 1001 depends on MFD_STPMIC1 1002 select WATCHDOG_CORE 1003 help 1004 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 1005 If the watchdog timer expires, stpmic1 will shut down all its power 1006 supplies. 1007 1008 To compile this driver as a module, choose M here: the 1009 module will be called spmic1_wdt. 1010 1011config UNIPHIER_WATCHDOG 1012 tristate "UniPhier watchdog support" 1013 depends on ARCH_UNIPHIER || COMPILE_TEST 1014 depends on OF && MFD_SYSCON 1015 select WATCHDOG_CORE 1016 help 1017 Say Y here to include support watchdog timer embedded 1018 into the UniPhier system. 1019 1020 To compile this driver as a module, choose M here: the 1021 module will be called uniphier_wdt. 1022 1023config RTD119X_WATCHDOG 1024 bool "Realtek RTD119x/RTD129x watchdog support" 1025 depends on ARCH_REALTEK || COMPILE_TEST 1026 depends on OF 1027 select WATCHDOG_CORE 1028 default ARCH_REALTEK 1029 help 1030 Say Y here to include support for the watchdog timer in 1031 Realtek RTD1295 SoCs. 1032 1033config REALTEK_OTTO_WDT 1034 tristate "Realtek Otto MIPS watchdog support" 1035 depends on MACH_REALTEK_RTL || COMPILE_TEST 1036 depends on COMMON_CLK 1037 select WATCHDOG_CORE 1038 default MACH_REALTEK_RTL 1039 help 1040 Say Y here to include support for the watchdog timer on Realtek 1041 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1042 notifications and system reset on timeout. 1043 1044 When built as a module this will be called realtek_otto_wdt. 1045 1046config SPRD_WATCHDOG 1047 tristate "Spreadtrum watchdog support" 1048 depends on ARCH_SPRD || COMPILE_TEST 1049 select WATCHDOG_CORE 1050 help 1051 Say Y here to include watchdog timer supported 1052 by Spreadtrum system. 1053 1054config PM8916_WATCHDOG 1055 tristate "QCOM PM8916 pmic watchdog" 1056 depends on OF && MFD_SPMI_PMIC 1057 select WATCHDOG_CORE 1058 help 1059 Say Y here to include support watchdog timer embedded into the 1060 pm8916 module. 1061 1062config VISCONTI_WATCHDOG 1063 tristate "Toshiba Visconti series watchdog support" 1064 depends on ARCH_VISCONTI || COMPILE_TEST 1065 select WATCHDOG_CORE 1066 help 1067 Say Y here to include support for the watchdog timer in Toshiba 1068 Visconti SoCs. 1069 1070config MSC313E_WATCHDOG 1071 tristate "MStar MSC313e watchdog" 1072 depends on ARCH_MSTARV7 || COMPILE_TEST 1073 select WATCHDOG_CORE 1074 help 1075 Say Y here to include support for the Watchdog timer embedded 1076 into MStar MSC313e chips. This will reboot your system when the 1077 timeout is reached. 1078 1079 To compile this driver as a module, choose M here: the 1080 module will be called msc313e_wdt. 1081 1082config APPLE_WATCHDOG 1083 tristate "Apple SoC watchdog" 1084 depends on ARCH_APPLE || COMPILE_TEST 1085 select WATCHDOG_CORE 1086 help 1087 Say Y here to include support for the Watchdog found in Apple 1088 SoCs such as the M1. Next to the common watchdog features this 1089 driver is also required in order to reboot these SoCs. 1090 1091 To compile this driver as a module, choose M here: the 1092 module will be called apple_wdt. 1093 1094config SUNPLUS_WATCHDOG 1095 tristate "Sunplus watchdog support" 1096 depends on ARCH_SUNPLUS || COMPILE_TEST 1097 select WATCHDOG_CORE 1098 help 1099 Say Y here to include support for the watchdog timer 1100 in Sunplus SoCs. 1101 1102 To compile this driver as a module, choose M here: the 1103 module will be called sunplus_wdt. 1104 1105# X86 (i386 + ia64 + x86_64) Architecture 1106 1107config ACQUIRE_WDT 1108 tristate "Acquire SBC Watchdog Timer" 1109 depends on X86 1110 help 1111 This is the driver for the hardware watchdog on Single Board 1112 Computers produced by Acquire Inc (and others). This watchdog 1113 simply watches your kernel to make sure it doesn't freeze, and if 1114 it does, it reboots your computer after a certain amount of time. 1115 1116 To compile this driver as a module, choose M here: the 1117 module will be called acquirewdt. 1118 1119 Most people will say N. 1120 1121config ADVANTECH_WDT 1122 tristate "Advantech SBC Watchdog Timer" 1123 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1124 help 1125 If you are configuring a Linux kernel for the Advantech single-board 1126 computer, say `Y' here to support its built-in watchdog timer 1127 feature. More information can be found at 1128 <https://www.advantech.com.tw/products/> 1129 1130config ADVANTECH_EC_WDT 1131 tristate "Advantech Embedded Controller Watchdog Timer" 1132 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1133 select ISA_BUS_API 1134 select WATCHDOG_CORE 1135 help 1136 This driver supports Advantech products with ITE based Embedded Controller. 1137 It does not support Advantech products with other ECs or without EC. 1138 1139config ALIM1535_WDT 1140 tristate "ALi M1535 PMU Watchdog Timer" 1141 depends on (X86 || COMPILE_TEST) && PCI 1142 help 1143 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1144 1145 To compile this driver as a module, choose M here: the 1146 module will be called alim1535_wdt. 1147 1148 Most people will say N. 1149 1150config ALIM7101_WDT 1151 tristate "ALi M7101 PMU Computer Watchdog" 1152 depends on PCI 1153 help 1154 This is the driver for the hardware watchdog on the ALi M7101 PMU 1155 as used in the x86 Cobalt servers and also found in some 1156 SPARC Netra servers too. 1157 1158 To compile this driver as a module, choose M here: the 1159 module will be called alim7101_wdt. 1160 1161 Most people will say N. 1162 1163config CGBC_WDT 1164 tristate "Congatec Board Controller Watchdog Timer" 1165 depends on MFD_CGBC 1166 select WATCHDOG_CORE 1167 help 1168 Enables watchdog timer support for the Congatec Board Controller. 1169 1170 This driver can also be built as a module. If so, the module will be 1171 called cgbc_wdt. 1172 1173config EBC_C384_WDT 1174 tristate "WinSystems EBC-C384 Watchdog Timer" 1175 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1176 select ISA_BUS_API 1177 select WATCHDOG_CORE 1178 help 1179 Enables watchdog timer support for the watchdog timer on the 1180 WinSystems EBC-C384 motherboard. The timeout may be configured via 1181 the timeout module parameter. 1182 1183config EXAR_WDT 1184 tristate "Exar Watchdog Timer" 1185 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1186 select WATCHDOG_CORE 1187 help 1188 Enables watchdog timer support for the watchdog timer present 1189 in some Exar/MaxLinear UART chips like the XR28V38x. 1190 1191 To compile this driver as a module, choose M here: the 1192 module will be called exar_wdt. 1193 1194config F71808E_WDT 1195 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1196 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1197 select WATCHDOG_CORE 1198 help 1199 This is the driver for the hardware watchdog on the Fintek F71808E, 1200 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1201 F81866 Super I/O controllers. 1202 1203 You can compile this driver directly into the kernel, or use 1204 it as a module. The module will be called f71808e_wdt. 1205 1206config SP5100_TCO 1207 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1208 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1209 select WATCHDOG_CORE 1210 help 1211 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1212 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1213 the machine after its expiration. The expiration time can be 1214 configured with the "heartbeat" parameter. 1215 1216 To compile this driver as a module, choose M here: the 1217 module will be called sp5100_tco. 1218 1219config GEODE_WDT 1220 tristate "AMD Geode CS5535/CS5536 Watchdog" 1221 depends on CS5535_MFGPT 1222 help 1223 This driver enables a watchdog capability built into the 1224 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1225 processors. This watchdog watches your kernel to make sure 1226 it doesn't freeze, and if it does, it reboots your computer after 1227 a certain amount of time. 1228 1229 You can compile this driver directly into the kernel, or use 1230 it as a module. The module will be called geodewdt. 1231 1232config SC520_WDT 1233 tristate "AMD Elan SC520 processor Watchdog" 1234 depends on MELAN || COMPILE_TEST 1235 help 1236 This is the driver for the hardware watchdog built in to the 1237 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1238 This watchdog simply watches your kernel to make sure it doesn't 1239 freeze, and if it does, it reboots your computer after a certain 1240 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 sc520_wdt. 1244 1245config SBC_FITPC2_WATCHDOG 1246 tristate "Compulab SBC-FITPC2 watchdog" 1247 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1248 help 1249 This is the driver for the built-in watchdog timer on the fit-PC2, 1250 fit-PC2i, CM-iAM single-board computers made by Compulab. 1251 1252 It's possible to enable the watchdog timer either from BIOS (F2) or 1253 from booted Linux. 1254 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1255 operational range. 1256 1257 Entering BIOS setup temporarily disables watchdog operation regardless 1258 of current state, so system will not be restarted while user is in 1259 BIOS setup. 1260 1261 Once the watchdog is enabled the system will be restarted every 1262 "Watchdog Timer Value" period, so to prevent it user can restart or 1263 disable the watchdog. 1264 1265 To compile this driver as a module, choose M here: the 1266 module will be called sbc_fitpc2_wdt. 1267 1268 Most people will say N. 1269 1270config EUROTECH_WDT 1271 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1272 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1273 help 1274 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1275 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1276 information are at <http://www.eurotech.it/>. 1277 1278config IB700_WDT 1279 tristate "IB700 SBC Watchdog Timer" 1280 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1281 help 1282 This is the driver for the hardware watchdog on the IB700 Single 1283 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1284 watchdog simply watches your kernel to make sure it doesn't freeze, 1285 and if it does, it reboots your computer after a certain amount of time. 1286 1287 This driver is like the WDT501 driver but for slightly different 1288 hardware. 1289 1290 To compile this driver as a module, choose M here: the 1291 module will be called ib700wdt. 1292 1293 Most people will say N. 1294 1295config IBMASR 1296 tristate "IBM Automatic Server Restart" 1297 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1298 help 1299 This is the driver for the IBM Automatic Server Restart watchdog 1300 timer built-in into some eServer xSeries machines. 1301 1302 To compile this driver as a module, choose M here: the 1303 module will be called ibmasr. 1304 1305config WAFER_WDT 1306 tristate "ICP Single Board Computer Watchdog Timer" 1307 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1308 help 1309 This is a driver for the hardware watchdog on the ICP Single 1310 Board Computer. This driver is working on (at least) the following 1311 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1312 1313 To compile this driver as a module, choose M here: the 1314 module will be called wafer5823wdt. 1315 1316config I6300ESB_WDT 1317 tristate "Intel 6300ESB Timer/Watchdog" 1318 depends on PCI 1319 select WATCHDOG_CORE 1320 help 1321 Hardware driver for the watchdog timer built into the Intel 1322 6300ESB controller hub. 1323 1324 To compile this driver as a module, choose M here: the 1325 module will be called i6300esb. 1326 1327config IE6XX_WDT 1328 tristate "Intel Atom E6xx Watchdog" 1329 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1330 select WATCHDOG_CORE 1331 select MFD_CORE 1332 select LPC_SCH 1333 help 1334 Hardware driver for the watchdog timer built into the Intel 1335 Atom E6XX (TunnelCreek) processor. 1336 1337 To compile this driver as a module, choose M here: the 1338 module will be called ie6xx_wdt. 1339 1340config INTEL_MID_WATCHDOG 1341 tristate "Intel MID Watchdog Timer" 1342 depends on X86_INTEL_MID 1343 select WATCHDOG_CORE 1344 help 1345 Watchdog timer driver built into the Intel SCU for Intel MID 1346 Platforms. 1347 1348 This driver currently supports only the watchdog evolution 1349 implementation in SCU, available for Merrifield generation. 1350 1351 To compile this driver as a module, choose M here. 1352 1353config ITCO_WDT 1354 tristate "Intel TCO Timer/Watchdog" 1355 depends on X86 && PCI 1356 select WATCHDOG_CORE 1357 depends on I2C || I2C=n 1358 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1359 depends on HAS_IOPORT # for I2C_I801 1360 select LPC_ICH if !EXPERT 1361 select I2C_I801 if !EXPERT && I2C 1362 help 1363 Hardware driver for the intel TCO timer based watchdog devices. 1364 These drivers are included in the Intel 82801 I/O Controller 1365 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1366 controller hub. 1367 1368 The TCO (Total Cost of Ownership) timer is a watchdog timer 1369 that will reboot the machine after its second expiration. The 1370 expiration time can be configured with the "heartbeat" parameter. 1371 1372 On some motherboards the driver may fail to reset the chipset's 1373 NO_REBOOT flag which prevents the watchdog from rebooting the 1374 machine. If this is the case you will get a kernel message like 1375 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1376 1377 To compile this driver as a module, choose M here: the 1378 module will be called iTCO_wdt. 1379 1380config ITCO_VENDOR_SUPPORT 1381 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1382 depends on ITCO_WDT 1383 help 1384 Add vendor specific support to the intel TCO timer based watchdog 1385 devices. At this moment we only have additional support for some 1386 SuperMicro Inc. motherboards. 1387 1388config IT8712F_WDT 1389 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1390 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1391 help 1392 This is the driver for the built-in watchdog timer on the IT8712F 1393 Super I/0 chipset used on many motherboards. 1394 1395 If the driver does not work, then make sure that the game port in 1396 the BIOS is enabled. 1397 1398 To compile this driver as a module, choose M here: the 1399 module will be called it8712f_wdt. 1400 1401config IT87_WDT 1402 tristate "IT87 Watchdog Timer" 1403 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1404 select WATCHDOG_CORE 1405 help 1406 This is the driver for the hardware watchdog on the ITE IT8607, 1407 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1408 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1409 IT8783 Super I/O chips. 1410 1411 This watchdog simply watches your kernel to make sure it doesn't 1412 freeze, and if it does, it reboots your computer after a certain 1413 amount of time. 1414 1415 To compile this driver as a module, choose M here: the module will 1416 be called it87_wdt. 1417 1418config HP_WATCHDOG 1419 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1420 select WATCHDOG_CORE 1421 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1422 help 1423 A software monitoring watchdog and NMI handling driver. This driver 1424 will detect lockups and provide a stack trace. This is a driver that 1425 will only load on an HP ProLiant system with a minimum of iLO2 support. 1426 To compile this driver as a module, choose M here: the module will be 1427 called hpwdt. 1428 1429config HPWDT_NMI_DECODING 1430 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1431 depends on X86 && HP_WATCHDOG 1432 default y 1433 help 1434 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1435 "Generate NMI to System" virtual button. When an NMI is claimed 1436 by the driver, panic is called. 1437 1438config KEMPLD_WDT 1439 tristate "Kontron COM Watchdog Timer" 1440 depends on MFD_KEMPLD 1441 select WATCHDOG_CORE 1442 help 1443 Support for the PLD watchdog on some Kontron ETX and COMexpress 1444 (ETXexpress) modules 1445 1446 This driver can also be built as a module. If so, the module will be 1447 called kempld_wdt. 1448 1449config SC1200_WDT 1450 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1451 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1452 help 1453 This is a driver for National Semiconductor PC87307/PC97307 hardware 1454 watchdog cards as found on the SC1200. This watchdog is mainly used 1455 for power management purposes and can be used to power down the device 1456 during inactivity periods (includes interrupt activity monitoring). 1457 1458 To compile this driver as a module, choose M here: the 1459 module will be called sc1200wdt. 1460 1461 Most people will say N. 1462 1463config SCx200_WDT 1464 tristate "National Semiconductor SCx200 Watchdog" 1465 depends on SCx200 && PCI 1466 help 1467 Enable the built-in watchdog timer support on the National 1468 Semiconductor SCx200 processors. 1469 1470 If compiled as a module, it will be called scx200_wdt. 1471 1472config PC87413_WDT 1473 tristate "NS PC87413 watchdog" 1474 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1475 help 1476 This is the driver for the hardware watchdog on the PC87413 chipset 1477 This watchdog simply watches your kernel to make sure it doesn't 1478 freeze, and if it does, it reboots your computer after a certain 1479 amount of time. 1480 1481 To compile this driver as a module, choose M here: the 1482 module will be called pc87413_wdt. 1483 1484 Most people will say N. 1485 1486config NV_TCO 1487 tristate "nVidia TCO Timer/Watchdog" 1488 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1489 help 1490 Hardware driver for the TCO timer built into the nVidia Hub family 1491 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1492 watchdog timer that will reboot the machine after its second 1493 expiration. The expiration time can be configured with the 1494 "heartbeat" parameter. 1495 1496 On some motherboards the driver may fail to reset the chipset's 1497 NO_REBOOT flag which prevents the watchdog from rebooting the 1498 machine. If this is the case you will get a kernel message like 1499 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1500 1501 To compile this driver as a module, choose M here: the 1502 module will be called nv_tco. 1503 1504config RDC321X_WDT 1505 tristate "RDC R-321x SoC watchdog" 1506 depends on X86_RDC321X || COMPILE_TEST 1507 depends on PCI 1508 help 1509 This is the driver for the built in hardware watchdog 1510 in the RDC R-321x SoC. 1511 1512 To compile this driver as a module, choose M here: the 1513 module will be called rdc321x_wdt. 1514 1515config 60XX_WDT 1516 tristate "SBC-60XX Watchdog Timer" 1517 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1518 help 1519 This driver can be used with the watchdog timer found on some 1520 single board computers, namely the 6010 PII based computer. 1521 It may well work with other cards. It reads port 0x443 to enable 1522 and re-set the watchdog timer, and reads port 0x45 to disable 1523 the watchdog. If you have a card that behave in similar ways, 1524 you can probably make this driver work with your card as well. 1525 1526 You can compile this driver directly into the kernel, or use 1527 it as a module. The module will be called sbc60xxwdt. 1528 1529config SBC8360_WDT 1530 tristate "SBC8360 Watchdog Timer" 1531 depends on X86_32 && HAS_IOPORT 1532 help 1533 1534 This is the driver for the hardware watchdog on the SBC8360 Single 1535 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1536 1537 To compile this driver as a module, choose M here: the 1538 module will be called sbc8360. 1539 1540 Most people will say N. 1541 1542config SBC7240_WDT 1543 tristate "SBC Nano 7240 Watchdog Timer" 1544 depends on X86_32 && HAS_IOPORT 1545 help 1546 This is the driver for the hardware watchdog found on the IEI 1547 single board computers EPIC Nano 7240 (and likely others). This 1548 watchdog simply watches your kernel to make sure it doesn't freeze, 1549 and if it does, it reboots your computer after a certain amount of 1550 time. 1551 1552 To compile this driver as a module, choose M here: the 1553 module will be called sbc7240_wdt. 1554 1555config SMSC_SCH311X_WDT 1556 tristate "SMSC SCH311X Watchdog Timer" 1557 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1558 help 1559 This is the driver for the hardware watchdog timer on the 1560 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1561 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1562 serial ports). 1563 1564 To compile this driver as a module, choose M here: the 1565 module will be called sch311x_wdt. 1566 1567config SMSC37B787_WDT 1568 tristate "Winbond SMsC37B787 Watchdog Timer" 1569 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1570 help 1571 This is the driver for the hardware watchdog component on the 1572 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1573 from Vision Systems and maybe others. 1574 1575 This watchdog simply watches your kernel to make sure it doesn't 1576 freeze, and if it does, it reboots your computer after a certain 1577 amount of time. 1578 1579 Usually a userspace daemon will notify the kernel WDT driver that 1580 userspace is still alive, at regular intervals. 1581 1582 To compile this driver as a module, choose M here: the 1583 module will be called smsc37b787_wdt. 1584 1585 Most people will say N. 1586 1587config TQMX86_WDT 1588 tristate "TQ-Systems TQMX86 Watchdog Timer" 1589 depends on X86 || COMPILE_TEST 1590 select WATCHDOG_CORE 1591 help 1592 This is the driver for the hardware watchdog timer in the TQMX86 IO 1593 controller found on some of their ComExpress Modules. 1594 1595 To compile this driver as a module, choose M here; the module 1596 will be called tqmx86_wdt. 1597 1598 Most people will say N. 1599 1600config VIA_WDT 1601 tristate "VIA Watchdog Timer" 1602 depends on (X86 || COMPILE_TEST) && PCI 1603 select WATCHDOG_CORE 1604 help 1605 This is the driver for the hardware watchdog timer on VIA 1606 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1607 1608 To compile this driver as a module, choose M here; the module 1609 will be called via_wdt. 1610 1611 Most people will say N. 1612 1613config W83627HF_WDT 1614 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1615 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1616 select WATCHDOG_CORE 1617 help 1618 This is the driver for the hardware watchdog on the following 1619 Super I/O chips. 1620 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1621 W83637HF 1622 W83667HG/HG-B 1623 W83687THF 1624 W83697HF 1625 W83697UG 1626 NCT6775 1627 NCT6776 1628 NCT6779 1629 NCT6791 1630 NCT6792 1631 NCT6102D/04D/06D 1632 NCT6116D 1633 1634 This watchdog simply watches your kernel to make sure it doesn't 1635 freeze, and if it does, it reboots your computer after a certain 1636 amount of time. 1637 1638 To compile this driver as a module, choose M here: the 1639 module will be called w83627hf_wdt. 1640 1641 Most people will say N. 1642 1643config W83877F_WDT 1644 tristate "W83877F (EMACS) Watchdog Timer" 1645 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1646 help 1647 This is the driver for the hardware watchdog on the W83877F chipset 1648 as used in EMACS PC-104 motherboards (and likely others). This 1649 watchdog simply watches your kernel to make sure it doesn't freeze, 1650 and if it does, it reboots your computer after a certain amount of 1651 time. 1652 1653 To compile this driver as a module, choose M here: the 1654 module will be called w83877f_wdt. 1655 1656 Most people will say N. 1657 1658config W83977F_WDT 1659 tristate "W83977F (PCM-5335) Watchdog Timer" 1660 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1661 help 1662 This is the driver for the hardware watchdog on the W83977F I/O chip 1663 as used in AAEON's PCM-5335 SBC (and likely others). This 1664 watchdog simply watches your kernel to make sure it doesn't freeze, 1665 and if it does, it reboots your computer after a certain amount of 1666 time. 1667 1668 To compile this driver as a module, choose M here: the 1669 module will be called w83977f_wdt. 1670 1671config MACHZ_WDT 1672 tristate "ZF MachZ Watchdog" 1673 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1674 help 1675 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1676 N. This is the driver for the watchdog timer built-in on that 1677 processor using ZF-Logic interface. This watchdog simply watches 1678 your kernel to make sure it doesn't freeze, and if it does, it 1679 reboots your computer after a certain amount of time. 1680 1681 To compile this driver as a module, choose M here: the 1682 module will be called machzwd. 1683 1684config SBC_EPX_C3_WATCHDOG 1685 tristate "Winsystems SBC EPX-C3 watchdog" 1686 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1687 help 1688 This is the driver for the built-in watchdog timer on the EPX-C3 1689 Single-board computer made by Winsystems, Inc. 1690 1691 *Note*: This hardware watchdog is not probeable and thus there 1692 is no way to know if writing to its IO address will corrupt 1693 your system or have any real effect. The only way to be sure 1694 that this driver does what you want is to make sure you 1695 are running it on an EPX-C3 from Winsystems with the watchdog 1696 timer at IO address 0x1ee and 0x1ef. It will write to both those 1697 IO ports. Basically, the assumption is made that if you compile 1698 this driver into your kernel and/or load it as a module, that you 1699 know what you are doing and that you are in fact running on an 1700 EPX-C3 board! 1701 1702 To compile this driver as a module, choose M here: the 1703 module will be called sbc_epx_c3. 1704 1705config INTEL_MEI_WDT 1706 tristate "Intel MEI iAMT Watchdog" 1707 depends on INTEL_MEI && X86 1708 select WATCHDOG_CORE 1709 help 1710 A device driver for the Intel MEI iAMT watchdog. 1711 1712 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1713 Whenever the OS hangs or crashes, iAMT will send an event 1714 to any subscriber to this event. The watchdog doesn't reset the 1715 the platform. 1716 1717 To compile this driver as a module, choose M here: 1718 the module will be called mei_wdt. 1719 1720config NI903X_WDT 1721 tristate "NI 903x/913x Watchdog" 1722 depends on X86 && ACPI 1723 select WATCHDOG_CORE 1724 help 1725 This is the driver for the watchdog timer on the National Instruments 1726 903x/913x real-time controllers. 1727 1728 To compile this driver as a module, choose M here: the module will be 1729 called ni903x_wdt. 1730 1731config NIC7018_WDT 1732 tristate "NIC7018 Watchdog" 1733 depends on X86 && ACPI 1734 select WATCHDOG_CORE 1735 help 1736 Support for National Instruments NIC7018 Watchdog. 1737 1738 To compile this driver as a module, choose M here: the module will be 1739 called nic7018_wdt. 1740 1741config SIEMENS_SIMATIC_IPC_WDT 1742 tristate "Siemens Simatic IPC Watchdog" 1743 depends on SIEMENS_SIMATIC_IPC && PCI 1744 default y 1745 select WATCHDOG_CORE 1746 select P2SB if X86 1747 help 1748 This driver adds support for several watchdogs found in Industrial 1749 PCs from Siemens. 1750 1751 To compile this driver as a module, choose M here: the module will be 1752 called simatic-ipc-wdt. 1753 1754# M68K Architecture 1755 1756config M54xx_WATCHDOG 1757 tristate "MCF54xx watchdog support" 1758 depends on M548x 1759 help 1760 To compile this driver as a module, choose M here: the 1761 module will be called m54xx_wdt. 1762 1763# MicroBlaze Architecture 1764 1765# MIPS Architecture 1766 1767config ATH79_WDT 1768 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1769 depends on ATH79 || (ARM && COMPILE_TEST) 1770 help 1771 Hardware driver for the built-in watchdog timer on the Atheros 1772 AR71XX/AR724X/AR913X SoCs. 1773 1774config BCM47XX_WDT 1775 tristate "Broadcom BCM47xx Watchdog Timer" 1776 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1777 select WATCHDOG_CORE 1778 help 1779 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1780 1781config RC32434_WDT 1782 tristate "IDT RC32434 SoC Watchdog Timer" 1783 depends on MIKROTIK_RB532 1784 help 1785 Hardware driver for the IDT RC32434 SoC built-in 1786 watchdog timer. 1787 1788 To compile this driver as a module, choose M here: the 1789 module will be called rc32434_wdt. 1790 1791config INDYDOG 1792 tristate "Indy/I2 Hardware Watchdog" 1793 depends on SGI_HAS_INDYDOG 1794 help 1795 Hardware driver for the Indy's/I2's watchdog. This is a 1796 watchdog timer that will reboot the machine after a 60 second 1797 timer expired and no process has written to /dev/watchdog during 1798 that time. 1799 1800config JZ4740_WDT 1801 tristate "Ingenic jz4740 SoC hardware watchdog" 1802 depends on MIPS || COMPILE_TEST 1803 depends on COMMON_CLK 1804 select WATCHDOG_CORE 1805 select MFD_SYSCON 1806 help 1807 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1808 1809config WDT_MTX1 1810 tristate "MTX-1 Hardware Watchdog" 1811 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1812 help 1813 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1814 will reboot the machine after a 100 seconds timer expired. 1815 1816config SIBYTE_WDOG 1817 tristate "Sibyte SoC hardware watchdog" 1818 depends on CPU_SB1 1819 help 1820 Watchdog driver for the built in watchdog hardware in Sibyte 1821 SoC processors. There are apparently two watchdog timers 1822 on such processors; this driver supports only the first one, 1823 because currently Linux only supports exporting one watchdog 1824 to userspace. 1825 1826 To compile this driver as a loadable module, choose M here. 1827 The module will be called sb_wdog. 1828 1829config TXX9_WDT 1830 tristate "Toshiba TXx9 Watchdog Timer" 1831 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1832 select WATCHDOG_CORE 1833 help 1834 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1835 1836config OCTEON_WDT 1837 tristate "Cavium OCTEON SOC family Watchdog Timer" 1838 depends on CAVIUM_OCTEON_SOC 1839 default y 1840 select WATCHDOG_CORE 1841 select EXPORT_UASM if OCTEON_WDT = m 1842 help 1843 Hardware driver for OCTEON's on chip watchdog timer. 1844 Enables the watchdog for all cores running Linux. It 1845 installs a NMI handler and pokes the watchdog based on an 1846 interrupt. On first expiration of the watchdog, the 1847 interrupt handler pokes it. The second expiration causes an 1848 NMI that prints a message. The third expiration causes a 1849 global soft reset. 1850 1851 When userspace has /dev/watchdog open, no poking is done 1852 from the first interrupt, it is then only poked when the 1853 device is written. 1854 1855config MARVELL_GTI_WDT 1856 tristate "Marvell GTI Watchdog driver" 1857 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1858 default y 1859 select WATCHDOG_CORE 1860 help 1861 Marvell GTI hardware supports watchdog timer. First timeout 1862 works as watchdog pretimeout and installed interrupt handler 1863 will be called on first timeout. Hardware can generate interrupt 1864 to SCP on second timeout but it is not enabled, so second 1865 timeout is ignored. If device poke does not happen then system 1866 will reboot on third timeout. 1867 1868config BCM2835_WDT 1869 tristate "Broadcom BCM2835 hardware watchdog" 1870 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1871 select WATCHDOG_CORE 1872 help 1873 Watchdog driver for the built in watchdog hardware in Broadcom 1874 BCM2835 SoC. 1875 1876 To compile this driver as a loadable module, choose M here. 1877 The module will be called bcm2835_wdt. 1878 1879config BCM_KONA_WDT 1880 tristate "BCM Kona Watchdog" 1881 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1882 select WATCHDOG_CORE 1883 help 1884 Support for the watchdog timer on the following Broadcom BCM281xx 1885 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1886 BCM28155 variants. 1887 1888 Say 'Y' or 'M' here to enable the driver. The module will be called 1889 bcm_kona_wdt. 1890 1891config BCM_KONA_WDT_DEBUG 1892 bool "DEBUGFS support for BCM Kona Watchdog" 1893 depends on BCM_KONA_WDT || COMPILE_TEST 1894 help 1895 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1896 access to the driver's internal data structures as well as watchdog 1897 timer hardware registres. 1898 1899 If in doubt, say 'N'. 1900 1901config BCM7038_WDT 1902 tristate "BCM63xx/BCM7038 Watchdog" 1903 select WATCHDOG_CORE 1904 depends on HAS_IOMEM 1905 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1906 help 1907 Watchdog driver for the built-in hardware in Broadcom 7038 and 1908 later SoCs used in set-top boxes. BCM7038 was made public 1909 during the 2004 CES, and since then, many Broadcom chips use this 1910 watchdog block, including some cable modem chips and DSL (63xx) 1911 chips. 1912 1913config IMGPDC_WDT 1914 tristate "Imagination Technologies PDC Watchdog Timer" 1915 depends on HAS_IOMEM 1916 depends on MIPS || COMPILE_TEST 1917 select WATCHDOG_CORE 1918 help 1919 Driver for Imagination Technologies PowerDown Controller 1920 Watchdog Timer. 1921 1922 To compile this driver as a loadable module, choose M here. 1923 The module will be called imgpdc_wdt. 1924 1925config LANTIQ_WDT 1926 tristate "Lantiq SoC watchdog" 1927 depends on LANTIQ 1928 select WATCHDOG_CORE 1929 help 1930 Hardware driver for the Lantiq SoC Watchdog Timer. 1931 1932config LOONGSON1_WDT 1933 tristate "Loongson1 SoC hardware watchdog" 1934 depends on MACH_LOONGSON32 || COMPILE_TEST 1935 select WATCHDOG_CORE 1936 help 1937 Hardware driver for the Loongson1 SoC Watchdog Timer. 1938 1939config RALINK_WDT 1940 tristate "Ralink SoC watchdog" 1941 select WATCHDOG_CORE 1942 depends on RALINK 1943 help 1944 Hardware driver for the Ralink SoC Watchdog Timer. 1945 1946config GXP_WATCHDOG 1947 tristate "HPE GXP watchdog support" 1948 depends on ARCH_HPE_GXP || COMPILE_TEST 1949 select WATCHDOG_CORE 1950 help 1951 Say Y here to include support for the watchdog timer 1952 in HPE GXP SoCs. 1953 1954 To compile this driver as a module, choose M here. 1955 The module will be called gxp-wdt. 1956 1957config MT7621_WDT 1958 tristate "Mediatek SoC watchdog" 1959 select WATCHDOG_CORE 1960 select REGMAP_MMIO 1961 select MFD_SYSCON 1962 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1963 help 1964 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1965 1966config PIC32_WDT 1967 tristate "Microchip PIC32 hardware watchdog" 1968 select WATCHDOG_CORE 1969 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1970 help 1971 Watchdog driver for the built in watchdog hardware in a PIC32. 1972 1973 Configuration bits must be set appropriately for the watchdog to be 1974 controlled by this driver. 1975 1976 To compile this driver as a loadable module, choose M here. 1977 The module will be called pic32-wdt. 1978 1979config PIC32_DMT 1980 tristate "Microchip PIC32 Deadman Timer" 1981 select WATCHDOG_CORE 1982 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1983 help 1984 Watchdog driver for PIC32 instruction fetch counting timer. This 1985 specific timer is typically be used in mission critical and safety 1986 critical applications, where any single failure of the software 1987 functionality and sequencing must be detected. 1988 1989 To compile this driver as a loadable module, choose M here. 1990 The module will be called pic32-dmt. 1991 1992# PARISC Architecture 1993 1994# POWERPC Architecture 1995 1996config GEF_WDT 1997 tristate "GE Watchdog Timer" 1998 depends on GE_FPGA 1999 help 2000 Watchdog timer found in a number of GE single board computers. 2001 2002config MPC5200_WDT 2003 bool "MPC52xx Watchdog Timer" 2004 depends on PPC_MPC52xx || COMPILE_TEST 2005 help 2006 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 2007 2008config 8xxx_WDT 2009 tristate "MPC8xxx Platform Watchdog Timer" 2010 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2011 select WATCHDOG_CORE 2012 help 2013 This driver is for a SoC level watchdog that exists on some 2014 Freescale PowerPC processors. So far this driver supports: 2015 - MPC8xx watchdogs 2016 - MPC83xx watchdogs 2017 - MPC86xx watchdogs 2018 2019 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2020 2021config PIKA_WDT 2022 tristate "PIKA FPGA Watchdog" 2023 depends on WARP || (PPC64 && COMPILE_TEST) 2024 default y 2025 help 2026 This enables the watchdog in the PIKA FPGA. Currently used on 2027 the Warp platform. 2028 2029config BOOKE_WDT 2030 tristate "PowerPC Book-E Watchdog Timer" 2031 depends on BOOKE || 4xx 2032 select WATCHDOG_CORE 2033 help 2034 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2035 MPC85xx SOCs and the IBM PowerPC 440. 2036 2037 Please see Documentation/watchdog/watchdog-api.rst for 2038 more information. 2039 2040config BOOKE_WDT_DEFAULT_TIMEOUT 2041 int "PowerPC Book-E Watchdog Timer Default Timeout" 2042 depends on BOOKE_WDT 2043 default 38 if PPC_E500 2044 range 0 63 if PPC_E500 2045 default 3 if !PPC_E500 2046 range 0 3 if !PPC_E500 2047 help 2048 Select the default watchdog timer period to be used by the PowerPC 2049 Book-E watchdog driver. A watchdog "event" occurs when the bit 2050 position represented by this number transitions from zero to one. 2051 2052 For Freescale Book-E processors, this is a number between 0 and 63. 2053 For other Book-E processors, this is a number between 0 and 3. 2054 2055 The value can be overridden by the wdt_period command-line parameter. 2056 2057config MEN_A21_WDT 2058 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2059 select WATCHDOG_CORE 2060 depends on GPIOLIB || COMPILE_TEST 2061 help 2062 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2063 2064 The driver can also be built as a module. If so, the module will be 2065 called mena21_wdt. 2066 2067 If unsure select N here. 2068 2069# PPC64 Architecture 2070 2071config PSERIES_WDT 2072 tristate "POWER Architecture Platform Watchdog Timer" 2073 depends on PPC_PSERIES 2074 select WATCHDOG_CORE 2075 help 2076 Driver for virtual watchdog timers provided by PAPR 2077 hypervisors (e.g. PowerVM, KVM). 2078 2079config WATCHDOG_RTAS 2080 tristate "RTAS watchdog" 2081 depends on PPC_RTAS 2082 help 2083 This driver adds watchdog support for the RTAS watchdog. 2084 2085 To compile this driver as a module, choose M here. The module 2086 will be called wdrtas. 2087 2088# RISC-V Architecture 2089 2090config STARFIVE_WATCHDOG 2091 tristate "StarFive Watchdog support" 2092 depends on ARCH_STARFIVE || COMPILE_TEST 2093 select WATCHDOG_CORE 2094 default ARCH_STARFIVE 2095 help 2096 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2097 SoC. This driver can also be built as a module if choose M. 2098 2099# S390 Architecture 2100 2101config DIAG288_WATCHDOG 2102 tristate "System z diag288 Watchdog" 2103 depends on S390 2104 select WATCHDOG_CORE 2105 help 2106 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2107 provide a virtual watchdog timer to their guest that cause a 2108 user define Control Program command to be executed after a 2109 timeout. 2110 LPAR provides a very similar interface. This driver handles 2111 both. 2112 2113 To compile this driver as a module, choose M here. The module 2114 will be called diag288_wdt. 2115 2116# SUPERH (sh + sh64) Architecture 2117 2118config SH_WDT 2119 tristate "SuperH Watchdog" 2120 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2121 select WATCHDOG_CORE 2122 help 2123 This driver adds watchdog support for the integrated watchdog in the 2124 SuperH processors. If you have one of these processors and wish 2125 to have watchdog support enabled, say Y, otherwise say N. 2126 2127 As a side note, saying Y here will automatically boost HZ to 1000 2128 so that the timer has a chance to clear the overflow counter. On 2129 slower systems (such as the SH-2 and SH-3) this will likely yield 2130 some performance issues. As such, the WDT should be avoided here 2131 unless it is absolutely necessary. 2132 2133 To compile this driver as a module, choose M here: the 2134 module will be called shwdt. 2135 2136# SPARC Architecture 2137 2138# SPARC64 Architecture 2139 2140config WATCHDOG_CP1XXX 2141 tristate "CP1XXX Hardware Watchdog support" 2142 depends on SPARC64 && PCI 2143 help 2144 This is the driver for the hardware watchdog timers present on 2145 Sun Microsystems CompactPCI models CP1400 and CP1500. 2146 2147 To compile this driver as a module, choose M here: the 2148 module will be called cpwatchdog. 2149 2150 If you do not have a CompactPCI model CP1400 or CP1500, or 2151 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2152 you should say N to this option. 2153 2154config WATCHDOG_RIO 2155 tristate "RIO Hardware Watchdog support" 2156 depends on SPARC64 && PCI 2157 help 2158 Say Y here to support the hardware watchdog capability on Sun RIO 2159 machines. The watchdog timeout period is normally one minute but 2160 can be changed with a boot-time parameter. 2161 2162config WATCHDOG_SUN4V 2163 tristate "Sun4v Watchdog support" 2164 select WATCHDOG_CORE 2165 depends on SPARC64 2166 help 2167 Say Y here to support the hypervisor watchdog capability embedded 2168 in the SPARC sun4v architecture. 2169 2170 To compile this driver as a module, choose M here. The module will 2171 be called sun4v_wdt. 2172 2173# XTENSA Architecture 2174 2175# Xen Architecture 2176 2177config XEN_WDT 2178 tristate "Xen Watchdog support" 2179 depends on XEN 2180 select WATCHDOG_CORE 2181 help 2182 Say Y here to support the hypervisor watchdog capability provided 2183 by Xen 4.0 and newer. The watchdog timeout period is normally one 2184 minute but can be changed with a boot-time parameter. 2185 2186config UML_WATCHDOG 2187 tristate "UML watchdog" 2188 depends on UML || COMPILE_TEST 2189 2190# 2191# ISA-based Watchdog Cards 2192# 2193 2194comment "ISA-based Watchdog Cards" 2195 depends on ISA 2196 2197config PCWATCHDOG 2198 tristate "Berkshire Products ISA-PC Watchdog" 2199 depends on ISA 2200 help 2201 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2202 This card simply watches your kernel to make sure it doesn't freeze, 2203 and if it does, it reboots your computer after a certain amount of 2204 time. This driver is like the WDT501 driver but for different 2205 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2206 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2207 2208 To compile this driver as a module, choose M here: the 2209 module will be called pcwd. 2210 2211 Most people will say N. 2212 2213config MIXCOMWD 2214 tristate "Mixcom Watchdog" 2215 depends on ISA 2216 help 2217 This is a driver for the Mixcom hardware watchdog cards. This 2218 watchdog simply watches your kernel to make sure it doesn't freeze, 2219 and if it does, it reboots your computer after a certain amount of 2220 time. 2221 2222 To compile this driver as a module, choose M here: the 2223 module will be called mixcomwd. 2224 2225 Most people will say N. 2226 2227config WDT 2228 tristate "WDT Watchdog timer" 2229 depends on ISA 2230 help 2231 If you have a WDT500P or WDT501P watchdog board, say Y here, 2232 otherwise N. It is not possible to probe for this board, which means 2233 that you have to inform the kernel about the IO port and IRQ that 2234 is needed (you can do this via the io and irq parameters) 2235 2236 To compile this driver as a module, choose M here: the 2237 module will be called wdt. 2238 2239# 2240# PCI-based Watchdog Cards 2241# 2242 2243comment "PCI-based Watchdog Cards" 2244 depends on PCI 2245 2246config PCIPCWATCHDOG 2247 tristate "Berkshire Products PCI-PC Watchdog" 2248 depends on PCI && HAS_IOPORT 2249 help 2250 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2251 This card simply watches your kernel to make sure it doesn't freeze, 2252 and if it does, it reboots your computer after a certain amount of 2253 time. The card can also monitor the internal temperature of the PC. 2254 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2255 2256 To compile this driver as a module, choose M here: the 2257 module will be called pcwd_pci. 2258 2259 Most people will say N. 2260 2261config WDTPCI 2262 tristate "PCI-WDT500/501 Watchdog timer" 2263 depends on PCI && HAS_IOPORT 2264 help 2265 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2266 2267 If you have a PCI-WDT501 watchdog board then you can enable the 2268 temperature sensor by setting the type parameter to 501. 2269 2270 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2271 can do this via the tachometer parameter. Only do this if you have a 2272 fan tachometer actually set up. 2273 2274 To compile this driver as a module, choose M here: the 2275 module will be called wdt_pci. 2276 2277# 2278# USB-based Watchdog Cards 2279# 2280 2281comment "USB-based Watchdog Cards" 2282 depends on USB 2283 2284config USBPCWATCHDOG 2285 tristate "Berkshire Products USB-PC Watchdog" 2286 depends on USB 2287 help 2288 This is the driver for the Berkshire Products USB-PC Watchdog card. 2289 This card simply watches your kernel to make sure it doesn't freeze, 2290 and if it does, it reboots your computer after a certain amount of 2291 time. The card can also monitor the internal temperature of the PC. 2292 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2293 2294 To compile this driver as a module, choose M here: the 2295 module will be called pcwd_usb. 2296 2297 Most people will say N. 2298 2299config KEEMBAY_WATCHDOG 2300 tristate "Intel Keem Bay SoC non-secure watchdog" 2301 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2302 select WATCHDOG_CORE 2303 help 2304 This option enable support for an In-secure watchdog timer driver for 2305 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2306 count unit. An interrupt will be triggered, when the count crosses 2307 the threshold configured in the register. 2308 2309 To compile this driver as a module, choose M here: the 2310 module will be called keembay_wdt. 2311 2312endif # WATCHDOG 2313