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 ARM_SP805_WATCHDOG 412 tristate "ARM SP805 Watchdog" 413 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 414 select WATCHDOG_CORE 415 help 416 ARM Primecell SP805 Watchdog timer. This will reboot your system when 417 the timeout is reached. 418 419config ARM_SBSA_WATCHDOG 420 tristate "ARM SBSA Generic Watchdog" 421 depends on ARM64 422 depends on ARM_ARCH_TIMER 423 select WATCHDOG_CORE 424 help 425 ARM SBSA Generic Watchdog has two stage timeouts: 426 the first signal (WS0) is for alerting the system by interrupt, 427 the second one (WS1) is a real hardware reset. 428 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 429 430 This driver can operate ARM SBSA Generic Watchdog as a single stage 431 or a two stages watchdog, it depends on the module parameter "action". 432 433 Note: the maximum timeout in the two stages mode is half of that in 434 the single stage mode. 435 436 To compile this driver as module, choose M here: The module 437 will be called sbsa_gwdt. 438 439config ARMADA_37XX_WATCHDOG 440 tristate "Armada 37xx watchdog" 441 depends on ARCH_MVEBU || COMPILE_TEST 442 depends on HAS_IOMEM 443 select MFD_SYSCON 444 select WATCHDOG_CORE 445 help 446 Say Y here to include support for the watchdog timer found on 447 Marvell Armada 37xx SoCs. 448 To compile this driver as a module, choose M here: the 449 module will be called armada_37xx_wdt. 450 451config ASM9260_WATCHDOG 452 tristate "Alphascale ASM9260 watchdog" 453 depends on MACH_ASM9260 || COMPILE_TEST 454 depends on OF 455 select WATCHDOG_CORE 456 select RESET_CONTROLLER 457 help 458 Watchdog timer embedded into Alphascale asm9260 chips. This will 459 reboot your system when the timeout is reached. 460 461config AT91RM9200_WATCHDOG 462 tristate "AT91RM9200 watchdog" 463 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 464 help 465 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 466 system when the timeout is reached. 467 468config AT91SAM9X_WATCHDOG 469 tristate "AT91SAM9X / AT91CAP9 watchdog" 470 depends on ARCH_AT91 || COMPILE_TEST 471 select WATCHDOG_CORE 472 help 473 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 474 reboot your system when the timeout is reached. 475 476config SAMA5D4_WATCHDOG 477 tristate "Atmel SAMA5D4 Watchdog Timer" 478 depends on ARCH_AT91 || COMPILE_TEST 479 select WATCHDOG_CORE 480 help 481 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 482 Its Watchdog Timer Mode Register can be written more than once. 483 This will reboot your system when the timeout is reached. 484 485config CADENCE_WATCHDOG 486 tristate "Cadence Watchdog Timer" 487 depends on HAS_IOMEM 488 select WATCHDOG_CORE 489 help 490 Say Y here if you want to include support for the watchdog 491 timer in the Xilinx Zynq. 492 493config 21285_WATCHDOG 494 tristate "DC21285 watchdog" 495 depends on FOOTBRIDGE 496 help 497 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 498 here if you wish to use this. Alternatively say M to compile the 499 driver as a module, which will be called wdt285. 500 501 This driver does not work on all machines. In particular, early CATS 502 boards have hardware problems that will cause the machine to simply 503 lock up if the watchdog fires. 504 505 "If in doubt, leave it out" - say N. 506 507config 977_WATCHDOG 508 tristate "NetWinder WB83C977 watchdog" 509 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 510 depends on HAS_IOPORT 511 help 512 Say Y here to include support for the WB977 watchdog included in 513 NetWinder machines. Alternatively say M to compile the driver as 514 a module, which will be called wdt977. 515 516 Not sure? It's safe to say N. 517 518config FTWDT010_WATCHDOG 519 tristate "Faraday Technology FTWDT010 watchdog" 520 depends on ARM || COMPILE_TEST 521 select WATCHDOG_CORE 522 default ARCH_GEMINI 523 help 524 Say Y here if to include support for the Faraday Technology 525 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 526 family of devices. 527 528 To compile this driver as a module, choose M here: the 529 module will be called ftwdt010_wdt. 530 531config IXP4XX_WATCHDOG 532 tristate "IXP4xx Watchdog" 533 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 534 select WATCHDOG_CORE 535 help 536 Say Y here if to include support for the watchdog timer 537 in the Intel IXP4xx network processors. This driver can 538 be built as a module by choosing M. The module will 539 be called ixp4xx_wdt. 540 541 Note: The internal IXP4xx watchdog does a soft CPU reset 542 which doesn't reset any peripherals. There are circumstances 543 where the watchdog will fail to reset the board correctly 544 (e.g., if the boot ROM is in an unreadable state). 545 546 Say N if you are unsure. 547 548config S3C2410_WATCHDOG 549 tristate "S3C6410/S5Pv210/Exynos Watchdog" 550 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 551 select WATCHDOG_CORE 552 help 553 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 554 SoCs. This will reboot the system when the timer expires with 555 the watchdog enabled. 556 557 The driver is limited by the speed of the system's PCLK 558 signal, so with reasonably fast systems (PCLK around 50-66MHz) 559 then watchdog intervals of over approximately 20seconds are 560 unavailable. 561 562 Choose Y/M here only if you build for such Samsung SoC. 563 The driver can be built as a module by choosing M, and will 564 be called s3c2410_wdt. 565 566config SA1100_WATCHDOG 567 tristate "SA1100/PXA2xx watchdog" 568 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 569 help 570 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 571 reboot your system when timeout is reached. 572 573 NOTE: once enabled, this timer cannot be disabled. 574 575 To compile this driver as a module, choose M here: the 576 module will be called sa1100_wdt. 577 578config DW_WATCHDOG 579 tristate "Synopsys DesignWare watchdog" 580 depends on HAS_IOMEM 581 select WATCHDOG_CORE 582 help 583 Say Y here if to include support for the Synopsys DesignWare 584 watchdog timer found in many chips. 585 To compile this driver as a module, choose M here: the 586 module will be called dw_wdt. 587 588config EP93XX_WATCHDOG 589 tristate "EP93xx Watchdog" 590 depends on ARCH_EP93XX || COMPILE_TEST 591 select WATCHDOG_CORE 592 help 593 Say Y here if to include support for the watchdog timer 594 embedded in the Cirrus Logic EP93xx family of devices. 595 596 To compile this driver as a module, choose M here: the 597 module will be called ep93xx_wdt. 598 599config OMAP_WATCHDOG 600 tristate "OMAP Watchdog" 601 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 602 select WATCHDOG_CORE 603 help 604 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 605 Say 'Y' here to enable the 606 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 607 608config PNX4008_WATCHDOG 609 tristate "LPC32XX Watchdog" 610 depends on ARCH_LPC32XX || COMPILE_TEST 611 select WATCHDOG_CORE 612 help 613 Say Y here if to include support for the watchdog timer 614 in the LPC32XX processor. 615 This driver can be built as a module by choosing M. The module 616 will be called pnx4008_wdt. 617 618 Say N if you are unsure. 619 620config DAVINCI_WATCHDOG 621 tristate "DaVinci watchdog" 622 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 623 select WATCHDOG_CORE 624 help 625 Say Y here if to include support for the watchdog timer 626 in the DaVinci DM644x/DM646x or Keystone processors. 627 To compile this driver as a module, choose M here: the 628 module will be called davinci_wdt. 629 630 NOTE: once enabled, this timer cannot be disabled. 631 Say N if you are unsure. 632 633config K3_RTI_WATCHDOG 634 tristate "Texas Instruments K3 RTI watchdog" 635 depends on ARCH_K3 || COMPILE_TEST 636 select WATCHDOG_CORE 637 help 638 Say Y here if you want to include support for the K3 watchdog 639 timer (RTI module) available in the K3 generation of processors. 640 641config ORION_WATCHDOG 642 tristate "Orion watchdog" 643 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 644 depends on ARM 645 select WATCHDOG_CORE 646 help 647 Say Y here if to include support for the watchdog timer 648 in the Marvell Orion5x and Kirkwood ARM SoCs. 649 To compile this driver as a module, choose M here: the 650 module will be called orion_wdt. 651 652config RN5T618_WATCHDOG 653 tristate "Ricoh RN5T618 watchdog" 654 depends on MFD_RN5T618 || COMPILE_TEST 655 select WATCHDOG_CORE 656 help 657 If you say yes here you get support for watchdog on the Ricoh 658 RN5T618 PMIC. 659 660 This driver can also be built as a module. If so, the module 661 will be called rn5t618_wdt. 662 663config SUNXI_WATCHDOG 664 tristate "Allwinner SoCs watchdog support" 665 depends on ARCH_SUNXI || COMPILE_TEST 666 select WATCHDOG_CORE 667 help 668 Say Y here to include support for the watchdog timer 669 in Allwinner SoCs. 670 To compile this driver as a module, choose M here: the 671 module will be called sunxi_wdt. 672 673config NPCM7XX_WATCHDOG 674 tristate "Nuvoton NPCM750 watchdog" 675 depends on ARCH_NPCM || COMPILE_TEST 676 default y if ARCH_NPCM7XX 677 select WATCHDOG_CORE 678 help 679 Say Y here to include Watchdog timer support for the 680 watchdog embedded into the NPCM7xx. 681 This watchdog is used to reset the system and thus cannot be 682 compiled as a module. 683 684config TWL4030_WATCHDOG 685 tristate "TWL4030 Watchdog" 686 depends on TWL4030_CORE 687 select WATCHDOG_CORE 688 help 689 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 690 watchdog timer support for TWL4030 chips. 691 692config STMP3XXX_RTC_WATCHDOG 693 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 694 depends on RTC_DRV_STMP || COMPILE_TEST 695 select WATCHDOG_CORE 696 help 697 Say Y here to include support for the watchdog timer inside 698 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 699 To compile this driver as a module, choose M here: the 700 module will be called stmp3xxx_rtc_wdt. 701 702config TS4800_WATCHDOG 703 tristate "TS-4800 Watchdog" 704 depends on HAS_IOMEM && OF 705 depends on SOC_IMX51 || COMPILE_TEST 706 select WATCHDOG_CORE 707 select MFD_SYSCON 708 help 709 Technologic Systems TS-4800 has watchdog timer implemented in 710 an external FPGA. Say Y here if you want to support for the 711 watchdog timer on TS-4800 board. 712 713config TS72XX_WATCHDOG 714 tristate "TS-72XX SBC Watchdog" 715 depends on MACH_TS72XX || COMPILE_TEST 716 select WATCHDOG_CORE 717 help 718 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 719 watchdog timer implemented in a external CPLD chip. Say Y here 720 if you want to support for the watchdog timer on TS-72XX boards. 721 722 To compile this driver as a module, choose M here: the 723 module will be called ts72xx_wdt. 724 725config MAX63XX_WATCHDOG 726 tristate "Max63xx watchdog" 727 depends on HAS_IOMEM 728 select WATCHDOG_CORE 729 help 730 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 731 732config MAX77620_WATCHDOG 733 tristate "Maxim Max77620 Watchdog Timer" 734 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 735 select WATCHDOG_CORE 736 help 737 This is the driver for the Max77620 watchdog timer. 738 Say 'Y' here to enable the watchdog timer support for 739 MAX77620 chips. To compile this driver as a module, 740 choose M here: the module will be called max77620_wdt. 741 742config IMX2_WDT 743 tristate "IMX2+ Watchdog" 744 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 745 select REGMAP_MMIO 746 select WATCHDOG_CORE 747 help 748 This is the driver for the hardware watchdog 749 on the Freescale IMX2 and later processors. 750 If you have one of these processors and wish to have 751 watchdog support enabled, say Y, otherwise say N. 752 753 To compile this driver as a module, choose M here: the 754 module will be called imx2_wdt. 755 756config IMX_SC_WDT 757 tristate "IMX SC Watchdog" 758 depends on HAVE_ARM_SMCCC 759 depends on IMX_SCU || COMPILE_TEST 760 select WATCHDOG_CORE 761 help 762 This is the driver for the system controller watchdog 763 on the NXP i.MX SoCs with system controller inside, the 764 watchdog driver will call ARM SMC API and trap into 765 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 766 will request system controller to execute the operations. 767 If you have one of these processors and wish to have 768 watchdog support enabled, say Y, otherwise say N. 769 770 To compile this driver as a module, choose M here: the 771 module will be called imx_sc_wdt. 772 773config IMX7ULP_WDT 774 tristate "IMX7ULP Watchdog" 775 depends on ARCH_MXC || COMPILE_TEST 776 select WATCHDOG_CORE 777 help 778 This is the driver for the hardware watchdog on the Freescale 779 IMX7ULP and later processors. If you have one of these 780 processors and wish to have watchdog support enabled, 781 say Y, otherwise say N. 782 783 To compile this driver as a module, choose M here: the 784 module will be called imx7ulp_wdt. 785 786config DB500_WATCHDOG 787 tristate "ST-Ericsson DB800 watchdog" 788 depends on MFD_DB8500_PRCMU 789 select WATCHDOG_CORE 790 default y 791 help 792 Say Y here to include Watchdog timer support for the watchdog 793 existing in the prcmu of ST-Ericsson DB8500 platform. 794 795 To compile this driver as a module, choose M here: the 796 module will be called db500_wdt. 797 798config RETU_WATCHDOG 799 tristate "Retu watchdog" 800 depends on MFD_RETU 801 select WATCHDOG_CORE 802 help 803 Retu watchdog driver for Nokia Internet Tablets (770, N800, 804 N810). At least on N800 the watchdog cannot be disabled, so 805 this driver is essential and you should enable it. 806 807 To compile this driver as a module, choose M here: the 808 module will be called retu_wdt. 809 810config MOXART_WDT 811 tristate "MOXART watchdog" 812 depends on ARCH_MOXART || COMPILE_TEST 813 help 814 Say Y here to include Watchdog timer support for the watchdog 815 existing on the MOXA ART SoC series platforms. 816 817 To compile this driver as a module, choose M here: the 818 module will be called moxart_wdt. 819 820config ST_LPC_WATCHDOG 821 tristate "STMicroelectronics LPC Watchdog" 822 depends on ARCH_STI || COMPILE_TEST 823 depends on OF 824 select WATCHDOG_CORE 825 help 826 Say Y here to include STMicroelectronics Low Power Controller 827 (LPC) based Watchdog timer support. 828 829 To compile this driver as a module, choose M here: the 830 module will be called st_lpc_wdt. 831 832config TEGRA_WATCHDOG 833 tristate "Tegra watchdog" 834 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 835 select WATCHDOG_CORE 836 help 837 Say Y here to include support for the watchdog timer 838 embedded in NVIDIA Tegra SoCs. 839 840 To compile this driver as a module, choose M here: the 841 module will be called tegra_wdt. 842 843config QCOM_WDT 844 tristate "QCOM watchdog" 845 depends on HAS_IOMEM 846 depends on ARCH_QCOM || COMPILE_TEST 847 select WATCHDOG_CORE 848 help 849 Say Y here to include Watchdog timer support for the watchdog found 850 on QCOM chipsets. Currently supported targets are the MSM8960, 851 APQ8064, and IPQ8064. 852 853 To compile this driver as a module, choose M here: the 854 module will be called qcom_wdt. 855 856config MESON_GXBB_WATCHDOG 857 tristate "Amlogic Meson GXBB SoCs watchdog support" 858 depends on ARCH_MESON || COMPILE_TEST 859 select WATCHDOG_CORE 860 help 861 Say Y here to include support for the watchdog timer 862 in Amlogic Meson GXBB SoCs. 863 To compile this driver as a module, choose M here: the 864 module will be called meson_gxbb_wdt. 865 866config MESON_WATCHDOG 867 tristate "Amlogic Meson SoCs watchdog support" 868 depends on ARCH_MESON || COMPILE_TEST 869 select WATCHDOG_CORE 870 help 871 Say Y here to include support for the watchdog timer 872 in Amlogic Meson SoCs. 873 To compile this driver as a module, choose M here: the 874 module will be called meson_wdt. 875 876config MEDIATEK_WATCHDOG 877 tristate "Mediatek SoCs watchdog support" 878 depends on ARCH_MEDIATEK || COMPILE_TEST 879 default ARCH_MEDIATEK 880 select WATCHDOG_CORE 881 select RESET_CONTROLLER 882 help 883 Say Y here to include support for the watchdog timer 884 in Mediatek SoCs. 885 To compile this driver as a module, choose M here: the 886 module will be called mtk_wdt. 887 888config DIGICOLOR_WATCHDOG 889 tristate "Conexant Digicolor SoCs watchdog support" 890 depends on ARCH_DIGICOLOR || COMPILE_TEST 891 select WATCHDOG_CORE 892 help 893 Say Y here to include support for the watchdog timer 894 in Conexant Digicolor SoCs. 895 To compile this driver as a module, choose M here: the 896 module will be called digicolor_wdt. 897 898config ARM_SMC_WATCHDOG 899 tristate "ARM Secure Monitor Call based watchdog support" 900 depends on ARM || ARM64 901 depends on OF 902 depends on HAVE_ARM_SMCCC 903 select WATCHDOG_CORE 904 help 905 Say Y here to include support for a watchdog timer 906 implemented by the EL3 Secure Monitor on ARM platforms. 907 Requires firmware support. 908 To compile this driver as a module, choose M here: the 909 module will be called arm_smc_wdt. 910 911config LPC18XX_WATCHDOG 912 tristate "LPC18xx/43xx Watchdog" 913 depends on ARCH_LPC18XX || COMPILE_TEST 914 depends on HAS_IOMEM 915 select WATCHDOG_CORE 916 help 917 Say Y here if to include support for the watchdog timer 918 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 919 processors. 920 To compile this driver as a module, choose M here: the 921 module will be called lpc18xx_wdt. 922 923config RENESAS_WDT 924 tristate "Renesas WDT Watchdog" 925 depends on ARCH_RENESAS || COMPILE_TEST 926 select WATCHDOG_CORE 927 help 928 This driver adds watchdog support for the integrated watchdogs in the 929 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 930 931config RENESAS_RZAWDT 932 tristate "Renesas RZ/A WDT Watchdog" 933 depends on ARCH_RENESAS || COMPILE_TEST 934 select WATCHDOG_CORE 935 help 936 This driver adds watchdog support for the integrated watchdogs in the 937 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 938 939config RENESAS_RZN1WDT 940 tristate "Renesas RZ/N1 watchdog" 941 depends on ARCH_RENESAS || COMPILE_TEST 942 select WATCHDOG_CORE 943 help 944 This driver adds watchdog support for the integrated watchdogs in the 945 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 946 947config RENESAS_RZG2LWDT 948 tristate "Renesas RZ/G2L WDT Watchdog" 949 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 950 depends on PM || COMPILE_TEST 951 select WATCHDOG_CORE 952 help 953 This driver adds watchdog support for the integrated watchdogs in the 954 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 955 956config ASPEED_WATCHDOG 957 tristate "Aspeed BMC watchdog support" 958 depends on ARCH_ASPEED || COMPILE_TEST 959 select WATCHDOG_CORE 960 help 961 Say Y here to include support for the watchdog timer 962 in Aspeed BMC SoCs. 963 964 This driver is required to reboot the SoC. 965 966 To compile this driver as a module, choose M here: the 967 module will be called aspeed_wdt. 968 969config STM32_WATCHDOG 970 tristate "STM32 Independent WatchDoG (IWDG) support" 971 depends on ARCH_STM32 || COMPILE_TEST 972 select WATCHDOG_CORE 973 default y 974 help 975 Say Y here to include support for the watchdog timer 976 in stm32 SoCs. 977 978 To compile this driver as a module, choose M here: the 979 module will be called stm32_iwdg. 980 981config STPMIC1_WATCHDOG 982 tristate "STPMIC1 PMIC watchdog support" 983 depends on MFD_STPMIC1 984 select WATCHDOG_CORE 985 help 986 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 987 If the watchdog timer expires, stpmic1 will shut down all its power 988 supplies. 989 990 To compile this driver as a module, choose M here: the 991 module will be called spmic1_wdt. 992 993config UNIPHIER_WATCHDOG 994 tristate "UniPhier watchdog support" 995 depends on ARCH_UNIPHIER || COMPILE_TEST 996 depends on OF && MFD_SYSCON 997 select WATCHDOG_CORE 998 help 999 Say Y here to include support watchdog timer embedded 1000 into the UniPhier system. 1001 1002 To compile this driver as a module, choose M here: the 1003 module will be called uniphier_wdt. 1004 1005config RTD119X_WATCHDOG 1006 bool "Realtek RTD119x/RTD129x watchdog support" 1007 depends on ARCH_REALTEK || COMPILE_TEST 1008 depends on OF 1009 select WATCHDOG_CORE 1010 default ARCH_REALTEK 1011 help 1012 Say Y here to include support for the watchdog timer in 1013 Realtek RTD1295 SoCs. 1014 1015config REALTEK_OTTO_WDT 1016 tristate "Realtek Otto MIPS watchdog support" 1017 depends on MACH_REALTEK_RTL || COMPILE_TEST 1018 depends on COMMON_CLK 1019 select WATCHDOG_CORE 1020 default MACH_REALTEK_RTL 1021 help 1022 Say Y here to include support for the watchdog timer on Realtek 1023 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1024 notifications and system reset on timeout. 1025 1026 When built as a module this will be called realtek_otto_wdt. 1027 1028config SPRD_WATCHDOG 1029 tristate "Spreadtrum watchdog support" 1030 depends on ARCH_SPRD || COMPILE_TEST 1031 select WATCHDOG_CORE 1032 help 1033 Say Y here to include watchdog timer supported 1034 by Spreadtrum system. 1035 1036config PM8916_WATCHDOG 1037 tristate "QCOM PM8916 pmic watchdog" 1038 depends on OF && MFD_SPMI_PMIC 1039 select WATCHDOG_CORE 1040 help 1041 Say Y here to include support watchdog timer embedded into the 1042 pm8916 module. 1043 1044config VISCONTI_WATCHDOG 1045 tristate "Toshiba Visconti series watchdog support" 1046 depends on ARCH_VISCONTI || COMPILE_TEST 1047 select WATCHDOG_CORE 1048 help 1049 Say Y here to include support for the watchdog timer in Toshiba 1050 Visconti SoCs. 1051 1052config MSC313E_WATCHDOG 1053 tristate "MStar MSC313e watchdog" 1054 depends on ARCH_MSTARV7 || COMPILE_TEST 1055 select WATCHDOG_CORE 1056 help 1057 Say Y here to include support for the Watchdog timer embedded 1058 into MStar MSC313e chips. This will reboot your system when the 1059 timeout is reached. 1060 1061 To compile this driver as a module, choose M here: the 1062 module will be called msc313e_wdt. 1063 1064config APPLE_WATCHDOG 1065 tristate "Apple SoC watchdog" 1066 depends on ARCH_APPLE || COMPILE_TEST 1067 select WATCHDOG_CORE 1068 help 1069 Say Y here to include support for the Watchdog found in Apple 1070 SoCs such as the M1. Next to the common watchdog features this 1071 driver is also required in order to reboot these SoCs. 1072 1073 To compile this driver as a module, choose M here: the 1074 module will be called apple_wdt. 1075 1076config SUNPLUS_WATCHDOG 1077 tristate "Sunplus watchdog support" 1078 depends on ARCH_SUNPLUS || COMPILE_TEST 1079 select WATCHDOG_CORE 1080 help 1081 Say Y here to include support for the watchdog timer 1082 in Sunplus SoCs. 1083 1084 To compile this driver as a module, choose M here: the 1085 module will be called sunplus_wdt. 1086 1087# X86 (i386 + ia64 + x86_64) Architecture 1088 1089config ACQUIRE_WDT 1090 tristate "Acquire SBC Watchdog Timer" 1091 depends on X86 1092 help 1093 This is the driver for the hardware watchdog on Single Board 1094 Computers produced by Acquire Inc (and others). This watchdog 1095 simply watches your kernel to make sure it doesn't freeze, and if 1096 it does, it reboots your computer after a certain amount of time. 1097 1098 To compile this driver as a module, choose M here: the 1099 module will be called acquirewdt. 1100 1101 Most people will say N. 1102 1103config ADVANTECH_WDT 1104 tristate "Advantech SBC Watchdog Timer" 1105 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1106 help 1107 If you are configuring a Linux kernel for the Advantech single-board 1108 computer, say `Y' here to support its built-in watchdog timer 1109 feature. More information can be found at 1110 <https://www.advantech.com.tw/products/> 1111 1112config ADVANTECH_EC_WDT 1113 tristate "Advantech Embedded Controller Watchdog Timer" 1114 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1115 select ISA_BUS_API 1116 select WATCHDOG_CORE 1117 help 1118 This driver supports Advantech products with ITE based Embedded Controller. 1119 It does not support Advantech products with other ECs or without EC. 1120 1121config ALIM1535_WDT 1122 tristate "ALi M1535 PMU Watchdog Timer" 1123 depends on (X86 || COMPILE_TEST) && PCI 1124 help 1125 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1126 1127 To compile this driver as a module, choose M here: the 1128 module will be called alim1535_wdt. 1129 1130 Most people will say N. 1131 1132config ALIM7101_WDT 1133 tristate "ALi M7101 PMU Computer Watchdog" 1134 depends on PCI 1135 help 1136 This is the driver for the hardware watchdog on the ALi M7101 PMU 1137 as used in the x86 Cobalt servers and also found in some 1138 SPARC Netra servers too. 1139 1140 To compile this driver as a module, choose M here: the 1141 module will be called alim7101_wdt. 1142 1143 Most people will say N. 1144 1145config EBC_C384_WDT 1146 tristate "WinSystems EBC-C384 Watchdog Timer" 1147 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1148 select ISA_BUS_API 1149 select WATCHDOG_CORE 1150 help 1151 Enables watchdog timer support for the watchdog timer on the 1152 WinSystems EBC-C384 motherboard. The timeout may be configured via 1153 the timeout module parameter. 1154 1155config EXAR_WDT 1156 tristate "Exar Watchdog Timer" 1157 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1158 select WATCHDOG_CORE 1159 help 1160 Enables watchdog timer support for the watchdog timer present 1161 in some Exar/MaxLinear UART chips like the XR28V38x. 1162 1163 To compile this driver as a module, choose M here: the 1164 module will be called exar_wdt. 1165 1166config F71808E_WDT 1167 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1168 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1169 select WATCHDOG_CORE 1170 help 1171 This is the driver for the hardware watchdog on the Fintek F71808E, 1172 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1173 F81866 Super I/O controllers. 1174 1175 You can compile this driver directly into the kernel, or use 1176 it as a module. The module will be called f71808e_wdt. 1177 1178config SP5100_TCO 1179 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1180 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1181 select WATCHDOG_CORE 1182 help 1183 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1184 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1185 the machine after its expiration. The expiration time can be 1186 configured with the "heartbeat" parameter. 1187 1188 To compile this driver as a module, choose M here: the 1189 module will be called sp5100_tco. 1190 1191config GEODE_WDT 1192 tristate "AMD Geode CS5535/CS5536 Watchdog" 1193 depends on CS5535_MFGPT 1194 help 1195 This driver enables a watchdog capability built into the 1196 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1197 processors. This watchdog watches your kernel to make sure 1198 it doesn't freeze, and if it does, it reboots your computer after 1199 a certain amount of time. 1200 1201 You can compile this driver directly into the kernel, or use 1202 it as a module. The module will be called geodewdt. 1203 1204config SC520_WDT 1205 tristate "AMD Elan SC520 processor Watchdog" 1206 depends on MELAN || COMPILE_TEST 1207 help 1208 This is the driver for the hardware watchdog built in to the 1209 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1210 This watchdog simply watches your kernel to make sure it doesn't 1211 freeze, and if it does, it reboots your computer after a certain 1212 amount of time. 1213 1214 You can compile this driver directly into the kernel, or use 1215 it as a module. The module will be called sc520_wdt. 1216 1217config SBC_FITPC2_WATCHDOG 1218 tristate "Compulab SBC-FITPC2 watchdog" 1219 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1220 help 1221 This is the driver for the built-in watchdog timer on the fit-PC2, 1222 fit-PC2i, CM-iAM single-board computers made by Compulab. 1223 1224 It's possible to enable the watchdog timer either from BIOS (F2) or 1225 from booted Linux. 1226 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1227 operational range. 1228 1229 Entering BIOS setup temporarily disables watchdog operation regardless 1230 of current state, so system will not be restarted while user is in 1231 BIOS setup. 1232 1233 Once the watchdog is enabled the system will be restarted every 1234 "Watchdog Timer Value" period, so to prevent it user can restart or 1235 disable the watchdog. 1236 1237 To compile this driver as a module, choose M here: the 1238 module will be called sbc_fitpc2_wdt. 1239 1240 Most people will say N. 1241 1242config EUROTECH_WDT 1243 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1244 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1245 help 1246 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1247 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1248 information are at <http://www.eurotech.it/>. 1249 1250config IB700_WDT 1251 tristate "IB700 SBC Watchdog Timer" 1252 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1253 help 1254 This is the driver for the hardware watchdog on the IB700 Single 1255 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1256 watchdog simply watches your kernel to make sure it doesn't freeze, 1257 and if it does, it reboots your computer after a certain amount of time. 1258 1259 This driver is like the WDT501 driver but for slightly different 1260 hardware. 1261 1262 To compile this driver as a module, choose M here: the 1263 module will be called ib700wdt. 1264 1265 Most people will say N. 1266 1267config IBMASR 1268 tristate "IBM Automatic Server Restart" 1269 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1270 help 1271 This is the driver for the IBM Automatic Server Restart watchdog 1272 timer built-in into some eServer xSeries machines. 1273 1274 To compile this driver as a module, choose M here: the 1275 module will be called ibmasr. 1276 1277config WAFER_WDT 1278 tristate "ICP Single Board Computer Watchdog Timer" 1279 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1280 help 1281 This is a driver for the hardware watchdog on the ICP Single 1282 Board Computer. This driver is working on (at least) the following 1283 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1284 1285 To compile this driver as a module, choose M here: the 1286 module will be called wafer5823wdt. 1287 1288config I6300ESB_WDT 1289 tristate "Intel 6300ESB Timer/Watchdog" 1290 depends on PCI 1291 select WATCHDOG_CORE 1292 help 1293 Hardware driver for the watchdog timer built into the Intel 1294 6300ESB controller hub. 1295 1296 To compile this driver as a module, choose M here: the 1297 module will be called i6300esb. 1298 1299config IE6XX_WDT 1300 tristate "Intel Atom E6xx Watchdog" 1301 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1302 select WATCHDOG_CORE 1303 select MFD_CORE 1304 select LPC_SCH 1305 help 1306 Hardware driver for the watchdog timer built into the Intel 1307 Atom E6XX (TunnelCreek) processor. 1308 1309 To compile this driver as a module, choose M here: the 1310 module will be called ie6xx_wdt. 1311 1312config INTEL_MID_WATCHDOG 1313 tristate "Intel MID Watchdog Timer" 1314 depends on X86_INTEL_MID 1315 select WATCHDOG_CORE 1316 help 1317 Watchdog timer driver built into the Intel SCU for Intel MID 1318 Platforms. 1319 1320 This driver currently supports only the watchdog evolution 1321 implementation in SCU, available for Merrifield generation. 1322 1323 To compile this driver as a module, choose M here. 1324 1325config ITCO_WDT 1326 tristate "Intel TCO Timer/Watchdog" 1327 depends on X86 && PCI 1328 select WATCHDOG_CORE 1329 depends on I2C || I2C=n 1330 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1331 depends on HAS_IOPORT # for I2C_I801 1332 select LPC_ICH if !EXPERT 1333 select I2C_I801 if !EXPERT && I2C 1334 help 1335 Hardware driver for the intel TCO timer based watchdog devices. 1336 These drivers are included in the Intel 82801 I/O Controller 1337 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1338 controller hub. 1339 1340 The TCO (Total Cost of Ownership) timer is a watchdog timer 1341 that will reboot the machine after its second expiration. The 1342 expiration time can be configured with the "heartbeat" parameter. 1343 1344 On some motherboards the driver may fail to reset the chipset's 1345 NO_REBOOT flag which prevents the watchdog from rebooting the 1346 machine. If this is the case you will get a kernel message like 1347 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1348 1349 To compile this driver as a module, choose M here: the 1350 module will be called iTCO_wdt. 1351 1352config ITCO_VENDOR_SUPPORT 1353 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1354 depends on ITCO_WDT 1355 help 1356 Add vendor specific support to the intel TCO timer based watchdog 1357 devices. At this moment we only have additional support for some 1358 SuperMicro Inc. motherboards. 1359 1360config IT8712F_WDT 1361 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1362 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1363 help 1364 This is the driver for the built-in watchdog timer on the IT8712F 1365 Super I/0 chipset used on many motherboards. 1366 1367 If the driver does not work, then make sure that the game port in 1368 the BIOS is enabled. 1369 1370 To compile this driver as a module, choose M here: the 1371 module will be called it8712f_wdt. 1372 1373config IT87_WDT 1374 tristate "IT87 Watchdog Timer" 1375 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1376 select WATCHDOG_CORE 1377 help 1378 This is the driver for the hardware watchdog on the ITE IT8607, 1379 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1380 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1381 IT8783 Super I/O chips. 1382 1383 This watchdog simply watches your kernel to make sure it doesn't 1384 freeze, and if it does, it reboots your computer after a certain 1385 amount of time. 1386 1387 To compile this driver as a module, choose M here: the module will 1388 be called it87_wdt. 1389 1390config HP_WATCHDOG 1391 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1392 select WATCHDOG_CORE 1393 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1394 help 1395 A software monitoring watchdog and NMI handling driver. This driver 1396 will detect lockups and provide a stack trace. This is a driver that 1397 will only load on an HP ProLiant system with a minimum of iLO2 support. 1398 To compile this driver as a module, choose M here: the module will be 1399 called hpwdt. 1400 1401config HPWDT_NMI_DECODING 1402 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1403 depends on X86 && HP_WATCHDOG 1404 default y 1405 help 1406 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1407 "Generate NMI to System" virtual button. When an NMI is claimed 1408 by the driver, panic is called. 1409 1410config KEMPLD_WDT 1411 tristate "Kontron COM Watchdog Timer" 1412 depends on MFD_KEMPLD 1413 select WATCHDOG_CORE 1414 help 1415 Support for the PLD watchdog on some Kontron ETX and COMexpress 1416 (ETXexpress) modules 1417 1418 This driver can also be built as a module. If so, the module will be 1419 called kempld_wdt. 1420 1421config SC1200_WDT 1422 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1423 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1424 help 1425 This is a driver for National Semiconductor PC87307/PC97307 hardware 1426 watchdog cards as found on the SC1200. This watchdog is mainly used 1427 for power management purposes and can be used to power down the device 1428 during inactivity periods (includes interrupt activity monitoring). 1429 1430 To compile this driver as a module, choose M here: the 1431 module will be called sc1200wdt. 1432 1433 Most people will say N. 1434 1435config SCx200_WDT 1436 tristate "National Semiconductor SCx200 Watchdog" 1437 depends on SCx200 && PCI 1438 help 1439 Enable the built-in watchdog timer support on the National 1440 Semiconductor SCx200 processors. 1441 1442 If compiled as a module, it will be called scx200_wdt. 1443 1444config PC87413_WDT 1445 tristate "NS PC87413 watchdog" 1446 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1447 help 1448 This is the driver for the hardware watchdog on the PC87413 chipset 1449 This watchdog simply watches your kernel to make sure it doesn't 1450 freeze, and if it does, it reboots your computer after a certain 1451 amount of time. 1452 1453 To compile this driver as a module, choose M here: the 1454 module will be called pc87413_wdt. 1455 1456 Most people will say N. 1457 1458config NV_TCO 1459 tristate "nVidia TCO Timer/Watchdog" 1460 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1461 help 1462 Hardware driver for the TCO timer built into the nVidia Hub family 1463 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1464 watchdog timer that will reboot the machine after its second 1465 expiration. The expiration time can be configured with the 1466 "heartbeat" parameter. 1467 1468 On some motherboards the driver may fail to reset the chipset's 1469 NO_REBOOT flag which prevents the watchdog from rebooting the 1470 machine. If this is the case you will get a kernel message like 1471 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1472 1473 To compile this driver as a module, choose M here: the 1474 module will be called nv_tco. 1475 1476config RDC321X_WDT 1477 tristate "RDC R-321x SoC watchdog" 1478 depends on X86_RDC321X || COMPILE_TEST 1479 depends on PCI 1480 help 1481 This is the driver for the built in hardware watchdog 1482 in the RDC R-321x SoC. 1483 1484 To compile this driver as a module, choose M here: the 1485 module will be called rdc321x_wdt. 1486 1487config 60XX_WDT 1488 tristate "SBC-60XX Watchdog Timer" 1489 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1490 help 1491 This driver can be used with the watchdog timer found on some 1492 single board computers, namely the 6010 PII based computer. 1493 It may well work with other cards. It reads port 0x443 to enable 1494 and re-set the watchdog timer, and reads port 0x45 to disable 1495 the watchdog. If you have a card that behave in similar ways, 1496 you can probably make this driver work with your card as well. 1497 1498 You can compile this driver directly into the kernel, or use 1499 it as a module. The module will be called sbc60xxwdt. 1500 1501config SBC8360_WDT 1502 tristate "SBC8360 Watchdog Timer" 1503 depends on X86_32 1504 help 1505 1506 This is the driver for the hardware watchdog on the SBC8360 Single 1507 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1508 1509 To compile this driver as a module, choose M here: the 1510 module will be called sbc8360. 1511 1512 Most people will say N. 1513 1514config SBC7240_WDT 1515 tristate "SBC Nano 7240 Watchdog Timer" 1516 depends on X86_32 && !UML 1517 help 1518 This is the driver for the hardware watchdog found on the IEI 1519 single board computers EPIC Nano 7240 (and likely others). This 1520 watchdog simply watches your kernel to make sure it doesn't freeze, 1521 and if it does, it reboots your computer after a certain amount of 1522 time. 1523 1524 To compile this driver as a module, choose M here: the 1525 module will be called sbc7240_wdt. 1526 1527config CPU5_WDT 1528 tristate "SMA CPU5 Watchdog" 1529 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1530 help 1531 TBD. 1532 To compile this driver as a module, choose M here: the 1533 module will be called cpu5wdt. 1534 1535config SMSC_SCH311X_WDT 1536 tristate "SMSC SCH311X Watchdog Timer" 1537 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1538 help 1539 This is the driver for the hardware watchdog timer on the 1540 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1541 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1542 serial ports). 1543 1544 To compile this driver as a module, choose M here: the 1545 module will be called sch311x_wdt. 1546 1547config SMSC37B787_WDT 1548 tristate "Winbond SMsC37B787 Watchdog Timer" 1549 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1550 help 1551 This is the driver for the hardware watchdog component on the 1552 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1553 from Vision Systems and maybe others. 1554 1555 This watchdog simply watches your kernel to make sure it doesn't 1556 freeze, and if it does, it reboots your computer after a certain 1557 amount of time. 1558 1559 Usually a userspace daemon will notify the kernel WDT driver that 1560 userspace is still alive, at regular intervals. 1561 1562 To compile this driver as a module, choose M here: the 1563 module will be called smsc37b787_wdt. 1564 1565 Most people will say N. 1566 1567config TQMX86_WDT 1568 tristate "TQ-Systems TQMX86 Watchdog Timer" 1569 depends on X86 || COMPILE_TEST 1570 select WATCHDOG_CORE 1571 help 1572 This is the driver for the hardware watchdog timer in the TQMX86 IO 1573 controller found on some of their ComExpress Modules. 1574 1575 To compile this driver as a module, choose M here; the module 1576 will be called tqmx86_wdt. 1577 1578 Most people will say N. 1579 1580config VIA_WDT 1581 tristate "VIA Watchdog Timer" 1582 depends on (X86 || COMPILE_TEST) && PCI 1583 select WATCHDOG_CORE 1584 help 1585 This is the driver for the hardware watchdog timer on VIA 1586 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1587 1588 To compile this driver as a module, choose M here; the module 1589 will be called via_wdt. 1590 1591 Most people will say N. 1592 1593config W83627HF_WDT 1594 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1595 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1596 select WATCHDOG_CORE 1597 help 1598 This is the driver for the hardware watchdog on the following 1599 Super I/O chips. 1600 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1601 W83637HF 1602 W83667HG/HG-B 1603 W83687THF 1604 W83697HF 1605 W83697UG 1606 NCT6775 1607 NCT6776 1608 NCT6779 1609 NCT6791 1610 NCT6792 1611 NCT6102D/04D/06D 1612 NCT6116D 1613 1614 This watchdog simply watches your kernel to make sure it doesn't 1615 freeze, and if it does, it reboots your computer after a certain 1616 amount of time. 1617 1618 To compile this driver as a module, choose M here: the 1619 module will be called w83627hf_wdt. 1620 1621 Most people will say N. 1622 1623config W83877F_WDT 1624 tristate "W83877F (EMACS) Watchdog Timer" 1625 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1626 help 1627 This is the driver for the hardware watchdog on the W83877F chipset 1628 as used in EMACS PC-104 motherboards (and likely others). This 1629 watchdog simply watches your kernel to make sure it doesn't freeze, 1630 and if it does, it reboots your computer after a certain amount of 1631 time. 1632 1633 To compile this driver as a module, choose M here: the 1634 module will be called w83877f_wdt. 1635 1636 Most people will say N. 1637 1638config W83977F_WDT 1639 tristate "W83977F (PCM-5335) Watchdog Timer" 1640 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1641 help 1642 This is the driver for the hardware watchdog on the W83977F I/O chip 1643 as used in AAEON's PCM-5335 SBC (and likely others). This 1644 watchdog simply watches your kernel to make sure it doesn't freeze, 1645 and if it does, it reboots your computer after a certain amount of 1646 time. 1647 1648 To compile this driver as a module, choose M here: the 1649 module will be called w83977f_wdt. 1650 1651config MACHZ_WDT 1652 tristate "ZF MachZ Watchdog" 1653 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1654 help 1655 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1656 N. This is the driver for the watchdog timer built-in on that 1657 processor using ZF-Logic interface. This watchdog simply watches 1658 your kernel to make sure it doesn't freeze, and if it does, it 1659 reboots your computer after a certain amount of time. 1660 1661 To compile this driver as a module, choose M here: the 1662 module will be called machzwd. 1663 1664config SBC_EPX_C3_WATCHDOG 1665 tristate "Winsystems SBC EPX-C3 watchdog" 1666 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1667 help 1668 This is the driver for the built-in watchdog timer on the EPX-C3 1669 Single-board computer made by Winsystems, Inc. 1670 1671 *Note*: This hardware watchdog is not probeable and thus there 1672 is no way to know if writing to its IO address will corrupt 1673 your system or have any real effect. The only way to be sure 1674 that this driver does what you want is to make sure you 1675 are running it on an EPX-C3 from Winsystems with the watchdog 1676 timer at IO address 0x1ee and 0x1ef. It will write to both those 1677 IO ports. Basically, the assumption is made that if you compile 1678 this driver into your kernel and/or load it as a module, that you 1679 know what you are doing and that you are in fact running on an 1680 EPX-C3 board! 1681 1682 To compile this driver as a module, choose M here: the 1683 module will be called sbc_epx_c3. 1684 1685config INTEL_MEI_WDT 1686 tristate "Intel MEI iAMT Watchdog" 1687 depends on INTEL_MEI && X86 1688 select WATCHDOG_CORE 1689 help 1690 A device driver for the Intel MEI iAMT watchdog. 1691 1692 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1693 Whenever the OS hangs or crashes, iAMT will send an event 1694 to any subscriber to this event. The watchdog doesn't reset the 1695 the platform. 1696 1697 To compile this driver as a module, choose M here: 1698 the module will be called mei_wdt. 1699 1700config NI903X_WDT 1701 tristate "NI 903x/913x Watchdog" 1702 depends on X86 && ACPI 1703 select WATCHDOG_CORE 1704 help 1705 This is the driver for the watchdog timer on the National Instruments 1706 903x/913x real-time controllers. 1707 1708 To compile this driver as a module, choose M here: the module will be 1709 called ni903x_wdt. 1710 1711config NIC7018_WDT 1712 tristate "NIC7018 Watchdog" 1713 depends on X86 && ACPI 1714 select WATCHDOG_CORE 1715 help 1716 Support for National Instruments NIC7018 Watchdog. 1717 1718 To compile this driver as a module, choose M here: the module will be 1719 called nic7018_wdt. 1720 1721config SIEMENS_SIMATIC_IPC_WDT 1722 tristate "Siemens Simatic IPC Watchdog" 1723 depends on SIEMENS_SIMATIC_IPC && PCI 1724 default y 1725 select WATCHDOG_CORE 1726 select P2SB if X86 1727 help 1728 This driver adds support for several watchdogs found in Industrial 1729 PCs from Siemens. 1730 1731 To compile this driver as a module, choose M here: the module will be 1732 called simatic-ipc-wdt. 1733 1734# M68K Architecture 1735 1736config M54xx_WATCHDOG 1737 tristate "MCF54xx watchdog support" 1738 depends on M548x 1739 help 1740 To compile this driver as a module, choose M here: the 1741 module will be called m54xx_wdt. 1742 1743# MicroBlaze Architecture 1744 1745# MIPS Architecture 1746 1747config ATH79_WDT 1748 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1749 depends on ATH79 || (ARM && COMPILE_TEST) 1750 help 1751 Hardware driver for the built-in watchdog timer on the Atheros 1752 AR71XX/AR724X/AR913X SoCs. 1753 1754config BCM47XX_WDT 1755 tristate "Broadcom BCM47xx Watchdog Timer" 1756 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1757 select WATCHDOG_CORE 1758 help 1759 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1760 1761config RC32434_WDT 1762 tristate "IDT RC32434 SoC Watchdog Timer" 1763 depends on MIKROTIK_RB532 1764 help 1765 Hardware driver for the IDT RC32434 SoC built-in 1766 watchdog timer. 1767 1768 To compile this driver as a module, choose M here: the 1769 module will be called rc32434_wdt. 1770 1771config INDYDOG 1772 tristate "Indy/I2 Hardware Watchdog" 1773 depends on SGI_HAS_INDYDOG 1774 help 1775 Hardware driver for the Indy's/I2's watchdog. This is a 1776 watchdog timer that will reboot the machine after a 60 second 1777 timer expired and no process has written to /dev/watchdog during 1778 that time. 1779 1780config JZ4740_WDT 1781 tristate "Ingenic jz4740 SoC hardware watchdog" 1782 depends on MIPS || COMPILE_TEST 1783 depends on COMMON_CLK 1784 select WATCHDOG_CORE 1785 select MFD_SYSCON 1786 help 1787 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1788 1789config WDT_MTX1 1790 tristate "MTX-1 Hardware Watchdog" 1791 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1792 help 1793 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1794 will reboot the machine after a 100 seconds timer expired. 1795 1796config SIBYTE_WDOG 1797 tristate "Sibyte SoC hardware watchdog" 1798 depends on CPU_SB1 1799 help 1800 Watchdog driver for the built in watchdog hardware in Sibyte 1801 SoC processors. There are apparently two watchdog timers 1802 on such processors; this driver supports only the first one, 1803 because currently Linux only supports exporting one watchdog 1804 to userspace. 1805 1806 To compile this driver as a loadable module, choose M here. 1807 The module will be called sb_wdog. 1808 1809config TXX9_WDT 1810 tristate "Toshiba TXx9 Watchdog Timer" 1811 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1812 select WATCHDOG_CORE 1813 help 1814 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1815 1816config OCTEON_WDT 1817 tristate "Cavium OCTEON SOC family Watchdog Timer" 1818 depends on CAVIUM_OCTEON_SOC 1819 default y 1820 select WATCHDOG_CORE 1821 select EXPORT_UASM if OCTEON_WDT = m 1822 help 1823 Hardware driver for OCTEON's on chip watchdog timer. 1824 Enables the watchdog for all cores running Linux. It 1825 installs a NMI handler and pokes the watchdog based on an 1826 interrupt. On first expiration of the watchdog, the 1827 interrupt handler pokes it. The second expiration causes an 1828 NMI that prints a message. The third expiration causes a 1829 global soft reset. 1830 1831 When userspace has /dev/watchdog open, no poking is done 1832 from the first interrupt, it is then only poked when the 1833 device is written. 1834 1835config MARVELL_GTI_WDT 1836 tristate "Marvell GTI Watchdog driver" 1837 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1838 default y 1839 select WATCHDOG_CORE 1840 help 1841 Marvell GTI hardware supports watchdog timer. First timeout 1842 works as watchdog pretimeout and installed interrupt handler 1843 will be called on first timeout. Hardware can generate interrupt 1844 to SCP on second timeout but it is not enabled, so second 1845 timeout is ignored. If device poke does not happen then system 1846 will reboot on third timeout. 1847 1848config BCM2835_WDT 1849 tristate "Broadcom BCM2835 hardware watchdog" 1850 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1851 select WATCHDOG_CORE 1852 help 1853 Watchdog driver for the built in watchdog hardware in Broadcom 1854 BCM2835 SoC. 1855 1856 To compile this driver as a loadable module, choose M here. 1857 The module will be called bcm2835_wdt. 1858 1859config BCM_KONA_WDT 1860 tristate "BCM Kona Watchdog" 1861 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1862 select WATCHDOG_CORE 1863 help 1864 Support for the watchdog timer on the following Broadcom BCM281xx 1865 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1866 BCM28155 variants. 1867 1868 Say 'Y' or 'M' here to enable the driver. The module will be called 1869 bcm_kona_wdt. 1870 1871config BCM_KONA_WDT_DEBUG 1872 bool "DEBUGFS support for BCM Kona Watchdog" 1873 depends on BCM_KONA_WDT || COMPILE_TEST 1874 help 1875 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1876 access to the driver's internal data structures as well as watchdog 1877 timer hardware registres. 1878 1879 If in doubt, say 'N'. 1880 1881config BCM7038_WDT 1882 tristate "BCM63xx/BCM7038 Watchdog" 1883 select WATCHDOG_CORE 1884 depends on HAS_IOMEM 1885 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1886 help 1887 Watchdog driver for the built-in hardware in Broadcom 7038 and 1888 later SoCs used in set-top boxes. BCM7038 was made public 1889 during the 2004 CES, and since then, many Broadcom chips use this 1890 watchdog block, including some cable modem chips and DSL (63xx) 1891 chips. 1892 1893config IMGPDC_WDT 1894 tristate "Imagination Technologies PDC Watchdog Timer" 1895 depends on HAS_IOMEM 1896 depends on MIPS || COMPILE_TEST 1897 select WATCHDOG_CORE 1898 help 1899 Driver for Imagination Technologies PowerDown Controller 1900 Watchdog Timer. 1901 1902 To compile this driver as a loadable module, choose M here. 1903 The module will be called imgpdc_wdt. 1904 1905config LANTIQ_WDT 1906 tristate "Lantiq SoC watchdog" 1907 depends on LANTIQ 1908 select WATCHDOG_CORE 1909 help 1910 Hardware driver for the Lantiq SoC Watchdog Timer. 1911 1912config LOONGSON1_WDT 1913 tristate "Loongson1 SoC hardware watchdog" 1914 depends on MACH_LOONGSON32 || COMPILE_TEST 1915 select WATCHDOG_CORE 1916 help 1917 Hardware driver for the Loongson1 SoC Watchdog Timer. 1918 1919config RALINK_WDT 1920 tristate "Ralink SoC watchdog" 1921 select WATCHDOG_CORE 1922 depends on RALINK 1923 help 1924 Hardware driver for the Ralink SoC Watchdog Timer. 1925 1926config GXP_WATCHDOG 1927 tristate "HPE GXP watchdog support" 1928 depends on ARCH_HPE_GXP || COMPILE_TEST 1929 select WATCHDOG_CORE 1930 help 1931 Say Y here to include support for the watchdog timer 1932 in HPE GXP SoCs. 1933 1934 To compile this driver as a module, choose M here. 1935 The module will be called gxp-wdt. 1936 1937config MT7621_WDT 1938 tristate "Mediatek SoC watchdog" 1939 select WATCHDOG_CORE 1940 select REGMAP_MMIO 1941 select MFD_SYSCON 1942 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1943 help 1944 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1945 1946config PIC32_WDT 1947 tristate "Microchip PIC32 hardware watchdog" 1948 select WATCHDOG_CORE 1949 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1950 help 1951 Watchdog driver for the built in watchdog hardware in a PIC32. 1952 1953 Configuration bits must be set appropriately for the watchdog to be 1954 controlled by this driver. 1955 1956 To compile this driver as a loadable module, choose M here. 1957 The module will be called pic32-wdt. 1958 1959config PIC32_DMT 1960 tristate "Microchip PIC32 Deadman Timer" 1961 select WATCHDOG_CORE 1962 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1963 help 1964 Watchdog driver for PIC32 instruction fetch counting timer. This 1965 specific timer is typically be used in mission critical and safety 1966 critical applications, where any single failure of the software 1967 functionality and sequencing must be detected. 1968 1969 To compile this driver as a loadable module, choose M here. 1970 The module will be called pic32-dmt. 1971 1972# PARISC Architecture 1973 1974# POWERPC Architecture 1975 1976config GEF_WDT 1977 tristate "GE Watchdog Timer" 1978 depends on GE_FPGA 1979 help 1980 Watchdog timer found in a number of GE single board computers. 1981 1982config MPC5200_WDT 1983 bool "MPC52xx Watchdog Timer" 1984 depends on PPC_MPC52xx || COMPILE_TEST 1985 help 1986 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1987 1988config 8xxx_WDT 1989 tristate "MPC8xxx Platform Watchdog Timer" 1990 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1991 select WATCHDOG_CORE 1992 help 1993 This driver is for a SoC level watchdog that exists on some 1994 Freescale PowerPC processors. So far this driver supports: 1995 - MPC8xx watchdogs 1996 - MPC83xx watchdogs 1997 - MPC86xx watchdogs 1998 1999 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2000 2001config PIKA_WDT 2002 tristate "PIKA FPGA Watchdog" 2003 depends on WARP || (PPC64 && COMPILE_TEST) 2004 default y 2005 help 2006 This enables the watchdog in the PIKA FPGA. Currently used on 2007 the Warp platform. 2008 2009config BOOKE_WDT 2010 tristate "PowerPC Book-E Watchdog Timer" 2011 depends on BOOKE || 4xx 2012 select WATCHDOG_CORE 2013 help 2014 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2015 MPC85xx SOCs and the IBM PowerPC 440. 2016 2017 Please see Documentation/watchdog/watchdog-api.rst for 2018 more information. 2019 2020config BOOKE_WDT_DEFAULT_TIMEOUT 2021 int "PowerPC Book-E Watchdog Timer Default Timeout" 2022 depends on BOOKE_WDT 2023 default 38 if PPC_E500 2024 range 0 63 if PPC_E500 2025 default 3 if !PPC_E500 2026 range 0 3 if !PPC_E500 2027 help 2028 Select the default watchdog timer period to be used by the PowerPC 2029 Book-E watchdog driver. A watchdog "event" occurs when the bit 2030 position represented by this number transitions from zero to one. 2031 2032 For Freescale Book-E processors, this is a number between 0 and 63. 2033 For other Book-E processors, this is a number between 0 and 3. 2034 2035 The value can be overridden by the wdt_period command-line parameter. 2036 2037config MEN_A21_WDT 2038 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2039 select WATCHDOG_CORE 2040 depends on GPIOLIB || COMPILE_TEST 2041 help 2042 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2043 2044 The driver can also be built as a module. If so, the module will be 2045 called mena21_wdt. 2046 2047 If unsure select N here. 2048 2049# PPC64 Architecture 2050 2051config PSERIES_WDT 2052 tristate "POWER Architecture Platform Watchdog Timer" 2053 depends on PPC_PSERIES 2054 select WATCHDOG_CORE 2055 help 2056 Driver for virtual watchdog timers provided by PAPR 2057 hypervisors (e.g. PowerVM, KVM). 2058 2059config WATCHDOG_RTAS 2060 tristate "RTAS watchdog" 2061 depends on PPC_RTAS 2062 help 2063 This driver adds watchdog support for the RTAS watchdog. 2064 2065 To compile this driver as a module, choose M here. The module 2066 will be called wdrtas. 2067 2068# RISC-V Architecture 2069 2070config STARFIVE_WATCHDOG 2071 tristate "StarFive Watchdog support" 2072 depends on ARCH_STARFIVE || COMPILE_TEST 2073 select WATCHDOG_CORE 2074 default ARCH_STARFIVE 2075 help 2076 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2077 SoC. This driver can also be built as a module if choose M. 2078 2079# S390 Architecture 2080 2081config DIAG288_WATCHDOG 2082 tristate "System z diag288 Watchdog" 2083 depends on S390 2084 select WATCHDOG_CORE 2085 help 2086 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2087 provide a virtual watchdog timer to their guest that cause a 2088 user define Control Program command to be executed after a 2089 timeout. 2090 LPAR provides a very similar interface. This driver handles 2091 both. 2092 2093 To compile this driver as a module, choose M here. The module 2094 will be called diag288_wdt. 2095 2096# SUPERH (sh + sh64) Architecture 2097 2098config SH_WDT 2099 tristate "SuperH Watchdog" 2100 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2101 select WATCHDOG_CORE 2102 help 2103 This driver adds watchdog support for the integrated watchdog in the 2104 SuperH processors. If you have one of these processors and wish 2105 to have watchdog support enabled, say Y, otherwise say N. 2106 2107 As a side note, saying Y here will automatically boost HZ to 1000 2108 so that the timer has a chance to clear the overflow counter. On 2109 slower systems (such as the SH-2 and SH-3) this will likely yield 2110 some performance issues. As such, the WDT should be avoided here 2111 unless it is absolutely necessary. 2112 2113 To compile this driver as a module, choose M here: the 2114 module will be called shwdt. 2115 2116# SPARC Architecture 2117 2118# SPARC64 Architecture 2119 2120config WATCHDOG_CP1XXX 2121 tristate "CP1XXX Hardware Watchdog support" 2122 depends on SPARC64 && PCI 2123 help 2124 This is the driver for the hardware watchdog timers present on 2125 Sun Microsystems CompactPCI models CP1400 and CP1500. 2126 2127 To compile this driver as a module, choose M here: the 2128 module will be called cpwatchdog. 2129 2130 If you do not have a CompactPCI model CP1400 or CP1500, or 2131 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2132 you should say N to this option. 2133 2134config WATCHDOG_RIO 2135 tristate "RIO Hardware Watchdog support" 2136 depends on SPARC64 && PCI 2137 help 2138 Say Y here to support the hardware watchdog capability on Sun RIO 2139 machines. The watchdog timeout period is normally one minute but 2140 can be changed with a boot-time parameter. 2141 2142config WATCHDOG_SUN4V 2143 tristate "Sun4v Watchdog support" 2144 select WATCHDOG_CORE 2145 depends on SPARC64 2146 help 2147 Say Y here to support the hypervisor watchdog capability embedded 2148 in the SPARC sun4v architecture. 2149 2150 To compile this driver as a module, choose M here. The module will 2151 be called sun4v_wdt. 2152 2153# XTENSA Architecture 2154 2155# Xen Architecture 2156 2157config XEN_WDT 2158 tristate "Xen Watchdog support" 2159 depends on XEN 2160 select WATCHDOG_CORE 2161 help 2162 Say Y here to support the hypervisor watchdog capability provided 2163 by Xen 4.0 and newer. The watchdog timeout period is normally one 2164 minute but can be changed with a boot-time parameter. 2165 2166config UML_WATCHDOG 2167 tristate "UML watchdog" 2168 depends on UML || COMPILE_TEST 2169 2170# 2171# ISA-based Watchdog Cards 2172# 2173 2174comment "ISA-based Watchdog Cards" 2175 depends on ISA 2176 2177config PCWATCHDOG 2178 tristate "Berkshire Products ISA-PC Watchdog" 2179 depends on ISA 2180 help 2181 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2182 This card simply watches your kernel to make sure it doesn't freeze, 2183 and if it does, it reboots your computer after a certain amount of 2184 time. This driver is like the WDT501 driver but for different 2185 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2186 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2187 2188 To compile this driver as a module, choose M here: the 2189 module will be called pcwd. 2190 2191 Most people will say N. 2192 2193config MIXCOMWD 2194 tristate "Mixcom Watchdog" 2195 depends on ISA 2196 help 2197 This is a driver for the Mixcom hardware watchdog cards. This 2198 watchdog simply watches your kernel to make sure it doesn't freeze, 2199 and if it does, it reboots your computer after a certain amount of 2200 time. 2201 2202 To compile this driver as a module, choose M here: the 2203 module will be called mixcomwd. 2204 2205 Most people will say N. 2206 2207config WDT 2208 tristate "WDT Watchdog timer" 2209 depends on ISA 2210 help 2211 If you have a WDT500P or WDT501P watchdog board, say Y here, 2212 otherwise N. It is not possible to probe for this board, which means 2213 that you have to inform the kernel about the IO port and IRQ that 2214 is needed (you can do this via the io and irq parameters) 2215 2216 To compile this driver as a module, choose M here: the 2217 module will be called wdt. 2218 2219# 2220# PCI-based Watchdog Cards 2221# 2222 2223comment "PCI-based Watchdog Cards" 2224 depends on PCI 2225 2226config PCIPCWATCHDOG 2227 tristate "Berkshire Products PCI-PC Watchdog" 2228 depends on PCI && HAS_IOPORT 2229 help 2230 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2231 This card simply watches your kernel to make sure it doesn't freeze, 2232 and if it does, it reboots your computer after a certain amount of 2233 time. The card can also monitor the internal temperature of the PC. 2234 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2235 2236 To compile this driver as a module, choose M here: the 2237 module will be called pcwd_pci. 2238 2239 Most people will say N. 2240 2241config WDTPCI 2242 tristate "PCI-WDT500/501 Watchdog timer" 2243 depends on PCI && HAS_IOPORT 2244 help 2245 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2246 2247 If you have a PCI-WDT501 watchdog board then you can enable the 2248 temperature sensor by setting the type parameter to 501. 2249 2250 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2251 can do this via the tachometer parameter. Only do this if you have a 2252 fan tachometer actually set up. 2253 2254 To compile this driver as a module, choose M here: the 2255 module will be called wdt_pci. 2256 2257# 2258# USB-based Watchdog Cards 2259# 2260 2261comment "USB-based Watchdog Cards" 2262 depends on USB 2263 2264config USBPCWATCHDOG 2265 tristate "Berkshire Products USB-PC Watchdog" 2266 depends on USB 2267 help 2268 This is the driver for the Berkshire Products USB-PC Watchdog card. 2269 This card simply watches your kernel to make sure it doesn't freeze, 2270 and if it does, it reboots your computer after a certain amount of 2271 time. The card can also monitor the internal temperature of the PC. 2272 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2273 2274 To compile this driver as a module, choose M here: the 2275 module will be called pcwd_usb. 2276 2277 Most people will say N. 2278 2279config KEEMBAY_WATCHDOG 2280 tristate "Intel Keem Bay SoC non-secure watchdog" 2281 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2282 select WATCHDOG_CORE 2283 help 2284 This option enable support for an In-secure watchdog timer driver for 2285 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2286 count unit. An interrupt will be triggered, when the count crosses 2287 the threshold configured in the register. 2288 2289 To compile this driver as a module, choose M here: the 2290 module will be called keembay_wdt. 2291 2292endif # WATCHDOG 2293