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 select MFD_SYSCON if ARCH_EXYNOS 553 help 554 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 555 SoCs. This will reboot the system when the timer expires with 556 the watchdog enabled. 557 558 The driver is limited by the speed of the system's PCLK 559 signal, so with reasonably fast systems (PCLK around 50-66MHz) 560 then watchdog intervals of over approximately 20seconds are 561 unavailable. 562 563 Choose Y/M here only if you build for such Samsung SoC. 564 The driver can be built as a module by choosing M, and will 565 be called s3c2410_wdt. 566 567config SA1100_WATCHDOG 568 tristate "SA1100/PXA2xx watchdog" 569 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 570 help 571 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 572 reboot your system when timeout is reached. 573 574 NOTE: once enabled, this timer cannot be disabled. 575 576 To compile this driver as a module, choose M here: the 577 module will be called sa1100_wdt. 578 579config DW_WATCHDOG 580 tristate "Synopsys DesignWare watchdog" 581 depends on HAS_IOMEM 582 select WATCHDOG_CORE 583 help 584 Say Y here if to include support for the Synopsys DesignWare 585 watchdog timer found in many chips. 586 To compile this driver as a module, choose M here: the 587 module will be called dw_wdt. 588 589config EP93XX_WATCHDOG 590 tristate "EP93xx Watchdog" 591 depends on ARCH_EP93XX || COMPILE_TEST 592 select WATCHDOG_CORE 593 help 594 Say Y here if to include support for the watchdog timer 595 embedded in the Cirrus Logic EP93xx family of devices. 596 597 To compile this driver as a module, choose M here: the 598 module will be called ep93xx_wdt. 599 600config OMAP_WATCHDOG 601 tristate "OMAP Watchdog" 602 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 603 select WATCHDOG_CORE 604 help 605 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 606 Say 'Y' here to enable the 607 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 608 609config PNX4008_WATCHDOG 610 tristate "LPC32XX Watchdog" 611 depends on ARCH_LPC32XX || COMPILE_TEST 612 select WATCHDOG_CORE 613 help 614 Say Y here if to include support for the watchdog timer 615 in the LPC32XX processor. 616 This driver can be built as a module by choosing M. The module 617 will be called pnx4008_wdt. 618 619 Say N if you are unsure. 620 621config DAVINCI_WATCHDOG 622 tristate "DaVinci watchdog" 623 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 624 select WATCHDOG_CORE 625 help 626 Say Y here if to include support for the watchdog timer 627 in the DaVinci DM644x/DM646x or Keystone processors. 628 To compile this driver as a module, choose M here: the 629 module will be called davinci_wdt. 630 631 NOTE: once enabled, this timer cannot be disabled. 632 Say N if you are unsure. 633 634config K3_RTI_WATCHDOG 635 tristate "Texas Instruments K3 RTI watchdog" 636 depends on ARCH_K3 || COMPILE_TEST 637 select WATCHDOG_CORE 638 help 639 Say Y here if you want to include support for the K3 watchdog 640 timer (RTI module) available in the K3 generation of processors. 641 642config ORION_WATCHDOG 643 tristate "Orion watchdog" 644 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 645 depends on ARM 646 select WATCHDOG_CORE 647 help 648 Say Y here if to include support for the watchdog timer 649 in the Marvell Orion5x and Kirkwood ARM SoCs. 650 To compile this driver as a module, choose M here: the 651 module will be called orion_wdt. 652 653config RN5T618_WATCHDOG 654 tristate "Ricoh RN5T618 watchdog" 655 depends on MFD_RN5T618 || COMPILE_TEST 656 select WATCHDOG_CORE 657 help 658 If you say yes here you get support for watchdog on the Ricoh 659 RN5T618 PMIC. 660 661 This driver can also be built as a module. If so, the module 662 will be called rn5t618_wdt. 663 664config SUNXI_WATCHDOG 665 tristate "Allwinner SoCs watchdog support" 666 depends on ARCH_SUNXI || COMPILE_TEST 667 select WATCHDOG_CORE 668 help 669 Say Y here to include support for the watchdog timer 670 in Allwinner SoCs. 671 To compile this driver as a module, choose M here: the 672 module will be called sunxi_wdt. 673 674config NPCM7XX_WATCHDOG 675 tristate "Nuvoton NPCM750 watchdog" 676 depends on ARCH_NPCM || COMPILE_TEST 677 default y if ARCH_NPCM7XX 678 select WATCHDOG_CORE 679 help 680 Say Y here to include Watchdog timer support for the 681 watchdog embedded into the NPCM7xx. 682 This watchdog is used to reset the system and thus cannot be 683 compiled as a module. 684 685config TWL4030_WATCHDOG 686 tristate "TWL4030 Watchdog" 687 depends on TWL4030_CORE 688 select WATCHDOG_CORE 689 help 690 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 691 watchdog timer support for TWL4030 chips. 692 693config STMP3XXX_RTC_WATCHDOG 694 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 695 depends on RTC_DRV_STMP || COMPILE_TEST 696 select WATCHDOG_CORE 697 help 698 Say Y here to include support for the watchdog timer inside 699 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 700 To compile this driver as a module, choose M here: the 701 module will be called stmp3xxx_rtc_wdt. 702 703config TS4800_WATCHDOG 704 tristate "TS-4800 Watchdog" 705 depends on HAS_IOMEM && OF 706 depends on SOC_IMX51 || COMPILE_TEST 707 select WATCHDOG_CORE 708 select MFD_SYSCON 709 help 710 Technologic Systems TS-4800 has watchdog timer implemented in 711 an external FPGA. Say Y here if you want to support for the 712 watchdog timer on TS-4800 board. 713 714config TS72XX_WATCHDOG 715 tristate "TS-72XX SBC Watchdog" 716 depends on MACH_TS72XX || COMPILE_TEST 717 select WATCHDOG_CORE 718 help 719 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 720 watchdog timer implemented in a external CPLD chip. Say Y here 721 if you want to support for the watchdog timer on TS-72XX boards. 722 723 To compile this driver as a module, choose M here: the 724 module will be called ts72xx_wdt. 725 726config MAX63XX_WATCHDOG 727 tristate "Max63xx watchdog" 728 depends on HAS_IOMEM 729 select WATCHDOG_CORE 730 help 731 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 732 733config MAX77620_WATCHDOG 734 tristate "Maxim Max77620 Watchdog Timer" 735 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 736 select WATCHDOG_CORE 737 help 738 This is the driver for the Max77620 watchdog timer. 739 Say 'Y' here to enable the watchdog timer support for 740 MAX77620 chips. To compile this driver as a module, 741 choose M here: the module will be called max77620_wdt. 742 743config IMX2_WDT 744 tristate "IMX2+ Watchdog" 745 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 746 select REGMAP_MMIO 747 select WATCHDOG_CORE 748 help 749 This is the driver for the hardware watchdog 750 on the Freescale IMX2 and later processors. 751 If you have one of these processors and wish to have 752 watchdog support enabled, say Y, otherwise say N. 753 754 To compile this driver as a module, choose M here: the 755 module will be called imx2_wdt. 756 757config IMX_SC_WDT 758 tristate "IMX SC Watchdog" 759 depends on HAVE_ARM_SMCCC 760 depends on IMX_SCU || COMPILE_TEST 761 select WATCHDOG_CORE 762 help 763 This is the driver for the system controller watchdog 764 on the NXP i.MX SoCs with system controller inside, the 765 watchdog driver will call ARM SMC API and trap into 766 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 767 will request system controller to execute the operations. 768 If you have one of these processors and wish to have 769 watchdog support enabled, say Y, otherwise say N. 770 771 To compile this driver as a module, choose M here: the 772 module will be called imx_sc_wdt. 773 774config IMX7ULP_WDT 775 tristate "IMX7ULP Watchdog" 776 depends on ARCH_MXC || COMPILE_TEST 777 select WATCHDOG_CORE 778 help 779 This is the driver for the hardware watchdog on the Freescale 780 IMX7ULP and later processors. If you have one of these 781 processors and wish to have watchdog support enabled, 782 say Y, otherwise say N. 783 784 To compile this driver as a module, choose M here: the 785 module will be called imx7ulp_wdt. 786 787config DB500_WATCHDOG 788 tristate "ST-Ericsson DB800 watchdog" 789 depends on MFD_DB8500_PRCMU 790 select WATCHDOG_CORE 791 default y 792 help 793 Say Y here to include Watchdog timer support for the watchdog 794 existing in the prcmu of ST-Ericsson DB8500 platform. 795 796 To compile this driver as a module, choose M here: the 797 module will be called db500_wdt. 798 799config RETU_WATCHDOG 800 tristate "Retu watchdog" 801 depends on MFD_RETU 802 select WATCHDOG_CORE 803 help 804 Retu watchdog driver for Nokia Internet Tablets (770, N800, 805 N810). At least on N800 the watchdog cannot be disabled, so 806 this driver is essential and you should enable it. 807 808 To compile this driver as a module, choose M here: the 809 module will be called retu_wdt. 810 811config MOXART_WDT 812 tristate "MOXART watchdog" 813 depends on ARCH_MOXART || COMPILE_TEST 814 help 815 Say Y here to include Watchdog timer support for the watchdog 816 existing on the MOXA ART SoC series platforms. 817 818 To compile this driver as a module, choose M here: the 819 module will be called moxart_wdt. 820 821config ST_LPC_WATCHDOG 822 tristate "STMicroelectronics LPC Watchdog" 823 depends on ARCH_STI || COMPILE_TEST 824 depends on OF 825 select WATCHDOG_CORE 826 help 827 Say Y here to include STMicroelectronics Low Power Controller 828 (LPC) based Watchdog timer support. 829 830 To compile this driver as a module, choose M here: the 831 module will be called st_lpc_wdt. 832 833config TEGRA_WATCHDOG 834 tristate "Tegra watchdog" 835 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 836 select WATCHDOG_CORE 837 help 838 Say Y here to include support for the watchdog timer 839 embedded in NVIDIA Tegra SoCs. 840 841 To compile this driver as a module, choose M here: the 842 module will be called tegra_wdt. 843 844config QCOM_WDT 845 tristate "QCOM watchdog" 846 depends on HAS_IOMEM 847 depends on ARCH_QCOM || COMPILE_TEST 848 select WATCHDOG_CORE 849 help 850 Say Y here to include Watchdog timer support for the watchdog found 851 on QCOM chipsets. Currently supported targets are the MSM8960, 852 APQ8064, and IPQ8064. 853 854 To compile this driver as a module, choose M here: the 855 module will be called qcom_wdt. 856 857config MESON_GXBB_WATCHDOG 858 tristate "Amlogic Meson GXBB SoCs watchdog support" 859 depends on ARCH_MESON || COMPILE_TEST 860 select WATCHDOG_CORE 861 help 862 Say Y here to include support for the watchdog timer 863 in Amlogic Meson GXBB SoCs. 864 To compile this driver as a module, choose M here: the 865 module will be called meson_gxbb_wdt. 866 867config MESON_WATCHDOG 868 tristate "Amlogic Meson SoCs watchdog support" 869 depends on ARCH_MESON || COMPILE_TEST 870 select WATCHDOG_CORE 871 help 872 Say Y here to include support for the watchdog timer 873 in Amlogic Meson SoCs. 874 To compile this driver as a module, choose M here: the 875 module will be called meson_wdt. 876 877config MEDIATEK_WATCHDOG 878 tristate "Mediatek SoCs watchdog support" 879 depends on ARCH_MEDIATEK || COMPILE_TEST 880 default ARCH_MEDIATEK 881 select WATCHDOG_CORE 882 select RESET_CONTROLLER 883 help 884 Say Y here to include support for the watchdog timer 885 in Mediatek SoCs. 886 To compile this driver as a module, choose M here: the 887 module will be called mtk_wdt. 888 889config DIGICOLOR_WATCHDOG 890 tristate "Conexant Digicolor SoCs watchdog support" 891 depends on ARCH_DIGICOLOR || COMPILE_TEST 892 select WATCHDOG_CORE 893 help 894 Say Y here to include support for the watchdog timer 895 in Conexant Digicolor SoCs. 896 To compile this driver as a module, choose M here: the 897 module will be called digicolor_wdt. 898 899config ARM_SMC_WATCHDOG 900 tristate "ARM Secure Monitor Call based watchdog support" 901 depends on ARM || ARM64 902 depends on OF 903 depends on HAVE_ARM_SMCCC 904 select WATCHDOG_CORE 905 help 906 Say Y here to include support for a watchdog timer 907 implemented by the EL3 Secure Monitor on ARM platforms. 908 Requires firmware support. 909 To compile this driver as a module, choose M here: the 910 module will be called arm_smc_wdt. 911 912config LPC18XX_WATCHDOG 913 tristate "LPC18xx/43xx Watchdog" 914 depends on ARCH_LPC18XX || COMPILE_TEST 915 depends on HAS_IOMEM 916 select WATCHDOG_CORE 917 help 918 Say Y here if to include support for the watchdog timer 919 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 920 processors. 921 To compile this driver as a module, choose M here: the 922 module will be called lpc18xx_wdt. 923 924config RENESAS_WDT 925 tristate "Renesas WDT Watchdog" 926 depends on ARCH_RENESAS || COMPILE_TEST 927 select WATCHDOG_CORE 928 help 929 This driver adds watchdog support for the integrated watchdogs in the 930 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 931 932config RENESAS_RZAWDT 933 tristate "Renesas RZ/A 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 RZ/A SoCs. These watchdogs can be used to reset a system. 939 940config RENESAS_RZN1WDT 941 tristate "Renesas RZ/N1 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/N1 SoCs. These watchdogs can be used to reset a system. 947 948config RENESAS_RZG2LWDT 949 tristate "Renesas RZ/G2L WDT Watchdog" 950 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST 951 depends on PM || COMPILE_TEST 952 select WATCHDOG_CORE 953 help 954 This driver adds watchdog support for the integrated watchdogs in the 955 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 956 957config RENESAS_RZV2HWDT 958 tristate "Renesas RZ/V2H(P) WDT Watchdog" 959 depends on ARCH_R9A09G057 || COMPILE_TEST 960 depends on PM || COMPILE_TEST 961 select WATCHDOG_CORE 962 help 963 This driver adds watchdog support for the integrated watchdogs in the 964 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system. 965 966config ASPEED_WATCHDOG 967 tristate "Aspeed BMC watchdog support" 968 depends on ARCH_ASPEED || COMPILE_TEST 969 select WATCHDOG_CORE 970 help 971 Say Y here to include support for the watchdog timer 972 in Aspeed BMC SoCs. 973 974 This driver is required to reboot the SoC. 975 976 To compile this driver as a module, choose M here: the 977 module will be called aspeed_wdt. 978 979config STM32_WATCHDOG 980 tristate "STM32 Independent WatchDoG (IWDG) support" 981 depends on ARCH_STM32 || COMPILE_TEST 982 select WATCHDOG_CORE 983 default y 984 help 985 Say Y here to include support for the watchdog timer 986 in stm32 SoCs. 987 988 To compile this driver as a module, choose M here: the 989 module will be called stm32_iwdg. 990 991config STPMIC1_WATCHDOG 992 tristate "STPMIC1 PMIC watchdog support" 993 depends on MFD_STPMIC1 994 select WATCHDOG_CORE 995 help 996 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 997 If the watchdog timer expires, stpmic1 will shut down all its power 998 supplies. 999 1000 To compile this driver as a module, choose M here: the 1001 module will be called spmic1_wdt. 1002 1003config UNIPHIER_WATCHDOG 1004 tristate "UniPhier watchdog support" 1005 depends on ARCH_UNIPHIER || COMPILE_TEST 1006 depends on OF && MFD_SYSCON 1007 select WATCHDOG_CORE 1008 help 1009 Say Y here to include support watchdog timer embedded 1010 into the UniPhier system. 1011 1012 To compile this driver as a module, choose M here: the 1013 module will be called uniphier_wdt. 1014 1015config RTD119X_WATCHDOG 1016 bool "Realtek RTD119x/RTD129x watchdog support" 1017 depends on ARCH_REALTEK || COMPILE_TEST 1018 depends on OF 1019 select WATCHDOG_CORE 1020 default ARCH_REALTEK 1021 help 1022 Say Y here to include support for the watchdog timer in 1023 Realtek RTD1295 SoCs. 1024 1025config REALTEK_OTTO_WDT 1026 tristate "Realtek Otto MIPS watchdog support" 1027 depends on MACH_REALTEK_RTL || COMPILE_TEST 1028 depends on COMMON_CLK 1029 select WATCHDOG_CORE 1030 default MACH_REALTEK_RTL 1031 help 1032 Say Y here to include support for the watchdog timer on Realtek 1033 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1034 notifications and system reset on timeout. 1035 1036 When built as a module this will be called realtek_otto_wdt. 1037 1038config SPRD_WATCHDOG 1039 tristate "Spreadtrum watchdog support" 1040 depends on ARCH_SPRD || COMPILE_TEST 1041 select WATCHDOG_CORE 1042 help 1043 Say Y here to include watchdog timer supported 1044 by Spreadtrum system. 1045 1046config PM8916_WATCHDOG 1047 tristate "QCOM PM8916 pmic watchdog" 1048 depends on OF && MFD_SPMI_PMIC 1049 select WATCHDOG_CORE 1050 help 1051 Say Y here to include support watchdog timer embedded into the 1052 pm8916 module. 1053 1054config VISCONTI_WATCHDOG 1055 tristate "Toshiba Visconti series watchdog support" 1056 depends on ARCH_VISCONTI || COMPILE_TEST 1057 select WATCHDOG_CORE 1058 help 1059 Say Y here to include support for the watchdog timer in Toshiba 1060 Visconti SoCs. 1061 1062config MSC313E_WATCHDOG 1063 tristate "MStar MSC313e watchdog" 1064 depends on ARCH_MSTARV7 || COMPILE_TEST 1065 select WATCHDOG_CORE 1066 help 1067 Say Y here to include support for the Watchdog timer embedded 1068 into MStar MSC313e chips. This will reboot your system when the 1069 timeout is reached. 1070 1071 To compile this driver as a module, choose M here: the 1072 module will be called msc313e_wdt. 1073 1074config APPLE_WATCHDOG 1075 tristate "Apple SoC watchdog" 1076 depends on ARCH_APPLE || COMPILE_TEST 1077 select WATCHDOG_CORE 1078 help 1079 Say Y here to include support for the Watchdog found in Apple 1080 SoCs such as the M1. Next to the common watchdog features this 1081 driver is also required in order to reboot these SoCs. 1082 1083 To compile this driver as a module, choose M here: the 1084 module will be called apple_wdt. 1085 1086config SUNPLUS_WATCHDOG 1087 tristate "Sunplus watchdog support" 1088 depends on ARCH_SUNPLUS || COMPILE_TEST 1089 select WATCHDOG_CORE 1090 help 1091 Say Y here to include support for the watchdog timer 1092 in Sunplus SoCs. 1093 1094 To compile this driver as a module, choose M here: the 1095 module will be called sunplus_wdt. 1096 1097# X86 (i386 + ia64 + x86_64) Architecture 1098 1099config ACQUIRE_WDT 1100 tristate "Acquire SBC Watchdog Timer" 1101 depends on X86 1102 help 1103 This is the driver for the hardware watchdog on Single Board 1104 Computers produced by Acquire Inc (and others). This watchdog 1105 simply watches your kernel to make sure it doesn't freeze, and if 1106 it does, it reboots your computer after a certain amount of time. 1107 1108 To compile this driver as a module, choose M here: the 1109 module will be called acquirewdt. 1110 1111 Most people will say N. 1112 1113config ADVANTECH_WDT 1114 tristate "Advantech SBC Watchdog Timer" 1115 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1116 help 1117 If you are configuring a Linux kernel for the Advantech single-board 1118 computer, say `Y' here to support its built-in watchdog timer 1119 feature. More information can be found at 1120 <https://www.advantech.com.tw/products/> 1121 1122config ADVANTECH_EC_WDT 1123 tristate "Advantech Embedded Controller Watchdog Timer" 1124 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1125 select ISA_BUS_API 1126 select WATCHDOG_CORE 1127 help 1128 This driver supports Advantech products with ITE based Embedded Controller. 1129 It does not support Advantech products with other ECs or without EC. 1130 1131config ALIM1535_WDT 1132 tristate "ALi M1535 PMU Watchdog Timer" 1133 depends on (X86 || COMPILE_TEST) && PCI 1134 help 1135 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1136 1137 To compile this driver as a module, choose M here: the 1138 module will be called alim1535_wdt. 1139 1140 Most people will say N. 1141 1142config ALIM7101_WDT 1143 tristate "ALi M7101 PMU Computer Watchdog" 1144 depends on PCI 1145 help 1146 This is the driver for the hardware watchdog on the ALi M7101 PMU 1147 as used in the x86 Cobalt servers and also found in some 1148 SPARC Netra servers too. 1149 1150 To compile this driver as a module, choose M here: the 1151 module will be called alim7101_wdt. 1152 1153 Most people will say N. 1154 1155config EBC_C384_WDT 1156 tristate "WinSystems EBC-C384 Watchdog Timer" 1157 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1158 select ISA_BUS_API 1159 select WATCHDOG_CORE 1160 help 1161 Enables watchdog timer support for the watchdog timer on the 1162 WinSystems EBC-C384 motherboard. The timeout may be configured via 1163 the timeout module parameter. 1164 1165config EXAR_WDT 1166 tristate "Exar Watchdog Timer" 1167 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1168 select WATCHDOG_CORE 1169 help 1170 Enables watchdog timer support for the watchdog timer present 1171 in some Exar/MaxLinear UART chips like the XR28V38x. 1172 1173 To compile this driver as a module, choose M here: the 1174 module will be called exar_wdt. 1175 1176config F71808E_WDT 1177 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1178 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1179 select WATCHDOG_CORE 1180 help 1181 This is the driver for the hardware watchdog on the Fintek F71808E, 1182 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1183 F81866 Super I/O controllers. 1184 1185 You can compile this driver directly into the kernel, or use 1186 it as a module. The module will be called f71808e_wdt. 1187 1188config SP5100_TCO 1189 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1190 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1191 select WATCHDOG_CORE 1192 help 1193 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1194 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1195 the machine after its expiration. The expiration time can be 1196 configured with the "heartbeat" parameter. 1197 1198 To compile this driver as a module, choose M here: the 1199 module will be called sp5100_tco. 1200 1201config GEODE_WDT 1202 tristate "AMD Geode CS5535/CS5536 Watchdog" 1203 depends on CS5535_MFGPT 1204 help 1205 This driver enables a watchdog capability built into the 1206 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1207 processors. This watchdog watches your kernel to make sure 1208 it doesn't freeze, and if it does, it reboots your computer after 1209 a certain amount of time. 1210 1211 You can compile this driver directly into the kernel, or use 1212 it as a module. The module will be called geodewdt. 1213 1214config SC520_WDT 1215 tristate "AMD Elan SC520 processor Watchdog" 1216 depends on MELAN || COMPILE_TEST 1217 help 1218 This is the driver for the hardware watchdog built in to the 1219 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1220 This watchdog simply watches your kernel to make sure it doesn't 1221 freeze, and if it does, it reboots your computer after a certain 1222 amount of time. 1223 1224 You can compile this driver directly into the kernel, or use 1225 it as a module. The module will be called sc520_wdt. 1226 1227config SBC_FITPC2_WATCHDOG 1228 tristate "Compulab SBC-FITPC2 watchdog" 1229 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1230 help 1231 This is the driver for the built-in watchdog timer on the fit-PC2, 1232 fit-PC2i, CM-iAM single-board computers made by Compulab. 1233 1234 It's possible to enable the watchdog timer either from BIOS (F2) or 1235 from booted Linux. 1236 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1237 operational range. 1238 1239 Entering BIOS setup temporarily disables watchdog operation regardless 1240 of current state, so system will not be restarted while user is in 1241 BIOS setup. 1242 1243 Once the watchdog is enabled the system will be restarted every 1244 "Watchdog Timer Value" period, so to prevent it user can restart or 1245 disable the watchdog. 1246 1247 To compile this driver as a module, choose M here: the 1248 module will be called sbc_fitpc2_wdt. 1249 1250 Most people will say N. 1251 1252config EUROTECH_WDT 1253 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1254 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1255 help 1256 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1257 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1258 information are at <http://www.eurotech.it/>. 1259 1260config IB700_WDT 1261 tristate "IB700 SBC Watchdog Timer" 1262 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1263 help 1264 This is the driver for the hardware watchdog on the IB700 Single 1265 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1266 watchdog simply watches your kernel to make sure it doesn't freeze, 1267 and if it does, it reboots your computer after a certain amount of time. 1268 1269 This driver is like the WDT501 driver but for slightly different 1270 hardware. 1271 1272 To compile this driver as a module, choose M here: the 1273 module will be called ib700wdt. 1274 1275 Most people will say N. 1276 1277config IBMASR 1278 tristate "IBM Automatic Server Restart" 1279 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1280 help 1281 This is the driver for the IBM Automatic Server Restart watchdog 1282 timer built-in into some eServer xSeries machines. 1283 1284 To compile this driver as a module, choose M here: the 1285 module will be called ibmasr. 1286 1287config WAFER_WDT 1288 tristate "ICP Single Board Computer Watchdog Timer" 1289 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1290 help 1291 This is a driver for the hardware watchdog on the ICP Single 1292 Board Computer. This driver is working on (at least) the following 1293 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1294 1295 To compile this driver as a module, choose M here: the 1296 module will be called wafer5823wdt. 1297 1298config I6300ESB_WDT 1299 tristate "Intel 6300ESB Timer/Watchdog" 1300 depends on PCI 1301 select WATCHDOG_CORE 1302 help 1303 Hardware driver for the watchdog timer built into the Intel 1304 6300ESB controller hub. 1305 1306 To compile this driver as a module, choose M here: the 1307 module will be called i6300esb. 1308 1309config IE6XX_WDT 1310 tristate "Intel Atom E6xx Watchdog" 1311 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1312 select WATCHDOG_CORE 1313 select MFD_CORE 1314 select LPC_SCH 1315 help 1316 Hardware driver for the watchdog timer built into the Intel 1317 Atom E6XX (TunnelCreek) processor. 1318 1319 To compile this driver as a module, choose M here: the 1320 module will be called ie6xx_wdt. 1321 1322config INTEL_MID_WATCHDOG 1323 tristate "Intel MID Watchdog Timer" 1324 depends on X86_INTEL_MID 1325 select WATCHDOG_CORE 1326 help 1327 Watchdog timer driver built into the Intel SCU for Intel MID 1328 Platforms. 1329 1330 This driver currently supports only the watchdog evolution 1331 implementation in SCU, available for Merrifield generation. 1332 1333 To compile this driver as a module, choose M here. 1334 1335config ITCO_WDT 1336 tristate "Intel TCO Timer/Watchdog" 1337 depends on X86 && PCI 1338 select WATCHDOG_CORE 1339 depends on I2C || I2C=n 1340 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1341 depends on HAS_IOPORT # for I2C_I801 1342 select LPC_ICH if !EXPERT 1343 select I2C_I801 if !EXPERT && I2C 1344 help 1345 Hardware driver for the intel TCO timer based watchdog devices. 1346 These drivers are included in the Intel 82801 I/O Controller 1347 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1348 controller hub. 1349 1350 The TCO (Total Cost of Ownership) timer is a watchdog timer 1351 that will reboot the machine after its second expiration. The 1352 expiration time can be configured with the "heartbeat" parameter. 1353 1354 On some motherboards the driver may fail to reset the chipset's 1355 NO_REBOOT flag which prevents the watchdog from rebooting the 1356 machine. If this is the case you will get a kernel message like 1357 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1358 1359 To compile this driver as a module, choose M here: the 1360 module will be called iTCO_wdt. 1361 1362config ITCO_VENDOR_SUPPORT 1363 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1364 depends on ITCO_WDT 1365 help 1366 Add vendor specific support to the intel TCO timer based watchdog 1367 devices. At this moment we only have additional support for some 1368 SuperMicro Inc. motherboards. 1369 1370config IT8712F_WDT 1371 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1372 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1373 help 1374 This is the driver for the built-in watchdog timer on the IT8712F 1375 Super I/0 chipset used on many motherboards. 1376 1377 If the driver does not work, then make sure that the game port in 1378 the BIOS is enabled. 1379 1380 To compile this driver as a module, choose M here: the 1381 module will be called it8712f_wdt. 1382 1383config IT87_WDT 1384 tristate "IT87 Watchdog Timer" 1385 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1386 select WATCHDOG_CORE 1387 help 1388 This is the driver for the hardware watchdog on the ITE IT8607, 1389 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1390 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1391 IT8783 Super I/O chips. 1392 1393 This watchdog simply watches your kernel to make sure it doesn't 1394 freeze, and if it does, it reboots your computer after a certain 1395 amount of time. 1396 1397 To compile this driver as a module, choose M here: the module will 1398 be called it87_wdt. 1399 1400config HP_WATCHDOG 1401 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1402 select WATCHDOG_CORE 1403 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1404 help 1405 A software monitoring watchdog and NMI handling driver. This driver 1406 will detect lockups and provide a stack trace. This is a driver that 1407 will only load on an HP ProLiant system with a minimum of iLO2 support. 1408 To compile this driver as a module, choose M here: the module will be 1409 called hpwdt. 1410 1411config HPWDT_NMI_DECODING 1412 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1413 depends on X86 && HP_WATCHDOG 1414 default y 1415 help 1416 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1417 "Generate NMI to System" virtual button. When an NMI is claimed 1418 by the driver, panic is called. 1419 1420config KEMPLD_WDT 1421 tristate "Kontron COM Watchdog Timer" 1422 depends on MFD_KEMPLD 1423 select WATCHDOG_CORE 1424 help 1425 Support for the PLD watchdog on some Kontron ETX and COMexpress 1426 (ETXexpress) modules 1427 1428 This driver can also be built as a module. If so, the module will be 1429 called kempld_wdt. 1430 1431config SC1200_WDT 1432 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1433 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1434 help 1435 This is a driver for National Semiconductor PC87307/PC97307 hardware 1436 watchdog cards as found on the SC1200. This watchdog is mainly used 1437 for power management purposes and can be used to power down the device 1438 during inactivity periods (includes interrupt activity monitoring). 1439 1440 To compile this driver as a module, choose M here: the 1441 module will be called sc1200wdt. 1442 1443 Most people will say N. 1444 1445config SCx200_WDT 1446 tristate "National Semiconductor SCx200 Watchdog" 1447 depends on SCx200 && PCI 1448 help 1449 Enable the built-in watchdog timer support on the National 1450 Semiconductor SCx200 processors. 1451 1452 If compiled as a module, it will be called scx200_wdt. 1453 1454config PC87413_WDT 1455 tristate "NS PC87413 watchdog" 1456 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1457 help 1458 This is the driver for the hardware watchdog on the PC87413 chipset 1459 This watchdog simply watches your kernel to make sure it doesn't 1460 freeze, and if it does, it reboots your computer after a certain 1461 amount of time. 1462 1463 To compile this driver as a module, choose M here: the 1464 module will be called pc87413_wdt. 1465 1466 Most people will say N. 1467 1468config NV_TCO 1469 tristate "nVidia TCO Timer/Watchdog" 1470 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT 1471 help 1472 Hardware driver for the TCO timer built into the nVidia Hub family 1473 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1474 watchdog timer that will reboot the machine after its second 1475 expiration. The expiration time can be configured with the 1476 "heartbeat" parameter. 1477 1478 On some motherboards the driver may fail to reset the chipset's 1479 NO_REBOOT flag which prevents the watchdog from rebooting the 1480 machine. If this is the case you will get a kernel message like 1481 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1482 1483 To compile this driver as a module, choose M here: the 1484 module will be called nv_tco. 1485 1486config RDC321X_WDT 1487 tristate "RDC R-321x SoC watchdog" 1488 depends on X86_RDC321X || COMPILE_TEST 1489 depends on PCI 1490 help 1491 This is the driver for the built in hardware watchdog 1492 in the RDC R-321x SoC. 1493 1494 To compile this driver as a module, choose M here: the 1495 module will be called rdc321x_wdt. 1496 1497config 60XX_WDT 1498 tristate "SBC-60XX Watchdog Timer" 1499 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1500 help 1501 This driver can be used with the watchdog timer found on some 1502 single board computers, namely the 6010 PII based computer. 1503 It may well work with other cards. It reads port 0x443 to enable 1504 and re-set the watchdog timer, and reads port 0x45 to disable 1505 the watchdog. If you have a card that behave in similar ways, 1506 you can probably make this driver work with your card as well. 1507 1508 You can compile this driver directly into the kernel, or use 1509 it as a module. The module will be called sbc60xxwdt. 1510 1511config SBC8360_WDT 1512 tristate "SBC8360 Watchdog Timer" 1513 depends on X86_32 && HAS_IOPORT 1514 help 1515 1516 This is the driver for the hardware watchdog on the SBC8360 Single 1517 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1518 1519 To compile this driver as a module, choose M here: the 1520 module will be called sbc8360. 1521 1522 Most people will say N. 1523 1524config SBC7240_WDT 1525 tristate "SBC Nano 7240 Watchdog Timer" 1526 depends on X86_32 && HAS_IOPORT 1527 help 1528 This is the driver for the hardware watchdog found on the IEI 1529 single board computers EPIC Nano 7240 (and likely others). This 1530 watchdog simply watches your kernel to make sure it doesn't freeze, 1531 and if it does, it reboots your computer after a certain amount of 1532 time. 1533 1534 To compile this driver as a module, choose M here: the 1535 module will be called sbc7240_wdt. 1536 1537config CPU5_WDT 1538 tristate "SMA CPU5 Watchdog" 1539 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1540 help 1541 TBD. 1542 To compile this driver as a module, choose M here: the 1543 module will be called cpu5wdt. 1544 1545config SMSC_SCH311X_WDT 1546 tristate "SMSC SCH311X Watchdog Timer" 1547 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1548 help 1549 This is the driver for the hardware watchdog timer on the 1550 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1551 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1552 serial ports). 1553 1554 To compile this driver as a module, choose M here: the 1555 module will be called sch311x_wdt. 1556 1557config SMSC37B787_WDT 1558 tristate "Winbond SMsC37B787 Watchdog Timer" 1559 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1560 help 1561 This is the driver for the hardware watchdog component on the 1562 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1563 from Vision Systems and maybe others. 1564 1565 This watchdog simply watches your kernel to make sure it doesn't 1566 freeze, and if it does, it reboots your computer after a certain 1567 amount of time. 1568 1569 Usually a userspace daemon will notify the kernel WDT driver that 1570 userspace is still alive, at regular intervals. 1571 1572 To compile this driver as a module, choose M here: the 1573 module will be called smsc37b787_wdt. 1574 1575 Most people will say N. 1576 1577config TQMX86_WDT 1578 tristate "TQ-Systems TQMX86 Watchdog Timer" 1579 depends on X86 || COMPILE_TEST 1580 select WATCHDOG_CORE 1581 help 1582 This is the driver for the hardware watchdog timer in the TQMX86 IO 1583 controller found on some of their ComExpress Modules. 1584 1585 To compile this driver as a module, choose M here; the module 1586 will be called tqmx86_wdt. 1587 1588 Most people will say N. 1589 1590config VIA_WDT 1591 tristate "VIA Watchdog Timer" 1592 depends on (X86 || COMPILE_TEST) && PCI 1593 select WATCHDOG_CORE 1594 help 1595 This is the driver for the hardware watchdog timer on VIA 1596 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1597 1598 To compile this driver as a module, choose M here; the module 1599 will be called via_wdt. 1600 1601 Most people will say N. 1602 1603config W83627HF_WDT 1604 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1605 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1606 select WATCHDOG_CORE 1607 help 1608 This is the driver for the hardware watchdog on the following 1609 Super I/O chips. 1610 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1611 W83637HF 1612 W83667HG/HG-B 1613 W83687THF 1614 W83697HF 1615 W83697UG 1616 NCT6775 1617 NCT6776 1618 NCT6779 1619 NCT6791 1620 NCT6792 1621 NCT6102D/04D/06D 1622 NCT6116D 1623 1624 This watchdog simply watches your kernel to make sure it doesn't 1625 freeze, and if it does, it reboots your computer after a certain 1626 amount of time. 1627 1628 To compile this driver as a module, choose M here: the 1629 module will be called w83627hf_wdt. 1630 1631 Most people will say N. 1632 1633config W83877F_WDT 1634 tristate "W83877F (EMACS) Watchdog Timer" 1635 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1636 help 1637 This is the driver for the hardware watchdog on the W83877F chipset 1638 as used in EMACS PC-104 motherboards (and likely others). This 1639 watchdog simply watches your kernel to make sure it doesn't freeze, 1640 and if it does, it reboots your computer after a certain amount of 1641 time. 1642 1643 To compile this driver as a module, choose M here: the 1644 module will be called w83877f_wdt. 1645 1646 Most people will say N. 1647 1648config W83977F_WDT 1649 tristate "W83977F (PCM-5335) Watchdog Timer" 1650 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1651 help 1652 This is the driver for the hardware watchdog on the W83977F I/O chip 1653 as used in AAEON's PCM-5335 SBC (and likely others). This 1654 watchdog simply watches your kernel to make sure it doesn't freeze, 1655 and if it does, it reboots your computer after a certain amount of 1656 time. 1657 1658 To compile this driver as a module, choose M here: the 1659 module will be called w83977f_wdt. 1660 1661config MACHZ_WDT 1662 tristate "ZF MachZ Watchdog" 1663 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1664 help 1665 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1666 N. This is the driver for the watchdog timer built-in on that 1667 processor using ZF-Logic interface. This watchdog simply watches 1668 your kernel to make sure it doesn't freeze, and if it does, it 1669 reboots your computer after a certain amount of time. 1670 1671 To compile this driver as a module, choose M here: the 1672 module will be called machzwd. 1673 1674config SBC_EPX_C3_WATCHDOG 1675 tristate "Winsystems SBC EPX-C3 watchdog" 1676 depends on (X86 || COMPILE_TEST) && HAS_IOPORT 1677 help 1678 This is the driver for the built-in watchdog timer on the EPX-C3 1679 Single-board computer made by Winsystems, Inc. 1680 1681 *Note*: This hardware watchdog is not probeable and thus there 1682 is no way to know if writing to its IO address will corrupt 1683 your system or have any real effect. The only way to be sure 1684 that this driver does what you want is to make sure you 1685 are running it on an EPX-C3 from Winsystems with the watchdog 1686 timer at IO address 0x1ee and 0x1ef. It will write to both those 1687 IO ports. Basically, the assumption is made that if you compile 1688 this driver into your kernel and/or load it as a module, that you 1689 know what you are doing and that you are in fact running on an 1690 EPX-C3 board! 1691 1692 To compile this driver as a module, choose M here: the 1693 module will be called sbc_epx_c3. 1694 1695config INTEL_MEI_WDT 1696 tristate "Intel MEI iAMT Watchdog" 1697 depends on INTEL_MEI && X86 1698 select WATCHDOG_CORE 1699 help 1700 A device driver for the Intel MEI iAMT watchdog. 1701 1702 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1703 Whenever the OS hangs or crashes, iAMT will send an event 1704 to any subscriber to this event. The watchdog doesn't reset the 1705 the platform. 1706 1707 To compile this driver as a module, choose M here: 1708 the module will be called mei_wdt. 1709 1710config NI903X_WDT 1711 tristate "NI 903x/913x Watchdog" 1712 depends on X86 && ACPI 1713 select WATCHDOG_CORE 1714 help 1715 This is the driver for the watchdog timer on the National Instruments 1716 903x/913x real-time controllers. 1717 1718 To compile this driver as a module, choose M here: the module will be 1719 called ni903x_wdt. 1720 1721config NIC7018_WDT 1722 tristate "NIC7018 Watchdog" 1723 depends on X86 && ACPI 1724 select WATCHDOG_CORE 1725 help 1726 Support for National Instruments NIC7018 Watchdog. 1727 1728 To compile this driver as a module, choose M here: the module will be 1729 called nic7018_wdt. 1730 1731config SIEMENS_SIMATIC_IPC_WDT 1732 tristate "Siemens Simatic IPC Watchdog" 1733 depends on SIEMENS_SIMATIC_IPC && PCI 1734 default y 1735 select WATCHDOG_CORE 1736 select P2SB if X86 1737 help 1738 This driver adds support for several watchdogs found in Industrial 1739 PCs from Siemens. 1740 1741 To compile this driver as a module, choose M here: the module will be 1742 called simatic-ipc-wdt. 1743 1744# M68K Architecture 1745 1746config M54xx_WATCHDOG 1747 tristate "MCF54xx watchdog support" 1748 depends on M548x 1749 help 1750 To compile this driver as a module, choose M here: the 1751 module will be called m54xx_wdt. 1752 1753# MicroBlaze Architecture 1754 1755# MIPS Architecture 1756 1757config ATH79_WDT 1758 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1759 depends on ATH79 || (ARM && COMPILE_TEST) 1760 help 1761 Hardware driver for the built-in watchdog timer on the Atheros 1762 AR71XX/AR724X/AR913X SoCs. 1763 1764config BCM47XX_WDT 1765 tristate "Broadcom BCM47xx Watchdog Timer" 1766 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1767 select WATCHDOG_CORE 1768 help 1769 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1770 1771config RC32434_WDT 1772 tristate "IDT RC32434 SoC Watchdog Timer" 1773 depends on MIKROTIK_RB532 1774 help 1775 Hardware driver for the IDT RC32434 SoC built-in 1776 watchdog timer. 1777 1778 To compile this driver as a module, choose M here: the 1779 module will be called rc32434_wdt. 1780 1781config INDYDOG 1782 tristate "Indy/I2 Hardware Watchdog" 1783 depends on SGI_HAS_INDYDOG 1784 help 1785 Hardware driver for the Indy's/I2's watchdog. This is a 1786 watchdog timer that will reboot the machine after a 60 second 1787 timer expired and no process has written to /dev/watchdog during 1788 that time. 1789 1790config JZ4740_WDT 1791 tristate "Ingenic jz4740 SoC hardware watchdog" 1792 depends on MIPS || COMPILE_TEST 1793 depends on COMMON_CLK 1794 select WATCHDOG_CORE 1795 select MFD_SYSCON 1796 help 1797 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1798 1799config WDT_MTX1 1800 tristate "MTX-1 Hardware Watchdog" 1801 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1802 help 1803 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1804 will reboot the machine after a 100 seconds timer expired. 1805 1806config SIBYTE_WDOG 1807 tristate "Sibyte SoC hardware watchdog" 1808 depends on CPU_SB1 1809 help 1810 Watchdog driver for the built in watchdog hardware in Sibyte 1811 SoC processors. There are apparently two watchdog timers 1812 on such processors; this driver supports only the first one, 1813 because currently Linux only supports exporting one watchdog 1814 to userspace. 1815 1816 To compile this driver as a loadable module, choose M here. 1817 The module will be called sb_wdog. 1818 1819config TXX9_WDT 1820 tristate "Toshiba TXx9 Watchdog Timer" 1821 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1822 select WATCHDOG_CORE 1823 help 1824 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1825 1826config OCTEON_WDT 1827 tristate "Cavium OCTEON SOC family Watchdog Timer" 1828 depends on CAVIUM_OCTEON_SOC 1829 default y 1830 select WATCHDOG_CORE 1831 select EXPORT_UASM if OCTEON_WDT = m 1832 help 1833 Hardware driver for OCTEON's on chip watchdog timer. 1834 Enables the watchdog for all cores running Linux. It 1835 installs a NMI handler and pokes the watchdog based on an 1836 interrupt. On first expiration of the watchdog, the 1837 interrupt handler pokes it. The second expiration causes an 1838 NMI that prints a message. The third expiration causes a 1839 global soft reset. 1840 1841 When userspace has /dev/watchdog open, no poking is done 1842 from the first interrupt, it is then only poked when the 1843 device is written. 1844 1845config MARVELL_GTI_WDT 1846 tristate "Marvell GTI Watchdog driver" 1847 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1848 default y 1849 select WATCHDOG_CORE 1850 help 1851 Marvell GTI hardware supports watchdog timer. First timeout 1852 works as watchdog pretimeout and installed interrupt handler 1853 will be called on first timeout. Hardware can generate interrupt 1854 to SCP on second timeout but it is not enabled, so second 1855 timeout is ignored. If device poke does not happen then system 1856 will reboot on third timeout. 1857 1858config BCM2835_WDT 1859 tristate "Broadcom BCM2835 hardware watchdog" 1860 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1861 select WATCHDOG_CORE 1862 help 1863 Watchdog driver for the built in watchdog hardware in Broadcom 1864 BCM2835 SoC. 1865 1866 To compile this driver as a loadable module, choose M here. 1867 The module will be called bcm2835_wdt. 1868 1869config BCM_KONA_WDT 1870 tristate "BCM Kona Watchdog" 1871 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1872 select WATCHDOG_CORE 1873 help 1874 Support for the watchdog timer on the following Broadcom BCM281xx 1875 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1876 BCM28155 variants. 1877 1878 Say 'Y' or 'M' here to enable the driver. The module will be called 1879 bcm_kona_wdt. 1880 1881config BCM_KONA_WDT_DEBUG 1882 bool "DEBUGFS support for BCM Kona Watchdog" 1883 depends on BCM_KONA_WDT || COMPILE_TEST 1884 help 1885 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1886 access to the driver's internal data structures as well as watchdog 1887 timer hardware registres. 1888 1889 If in doubt, say 'N'. 1890 1891config BCM7038_WDT 1892 tristate "BCM63xx/BCM7038 Watchdog" 1893 select WATCHDOG_CORE 1894 depends on HAS_IOMEM 1895 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1896 help 1897 Watchdog driver for the built-in hardware in Broadcom 7038 and 1898 later SoCs used in set-top boxes. BCM7038 was made public 1899 during the 2004 CES, and since then, many Broadcom chips use this 1900 watchdog block, including some cable modem chips and DSL (63xx) 1901 chips. 1902 1903config IMGPDC_WDT 1904 tristate "Imagination Technologies PDC Watchdog Timer" 1905 depends on HAS_IOMEM 1906 depends on MIPS || COMPILE_TEST 1907 select WATCHDOG_CORE 1908 help 1909 Driver for Imagination Technologies PowerDown Controller 1910 Watchdog Timer. 1911 1912 To compile this driver as a loadable module, choose M here. 1913 The module will be called imgpdc_wdt. 1914 1915config LANTIQ_WDT 1916 tristate "Lantiq SoC watchdog" 1917 depends on LANTIQ 1918 select WATCHDOG_CORE 1919 help 1920 Hardware driver for the Lantiq SoC Watchdog Timer. 1921 1922config LOONGSON1_WDT 1923 tristate "Loongson1 SoC hardware watchdog" 1924 depends on MACH_LOONGSON32 || COMPILE_TEST 1925 select WATCHDOG_CORE 1926 help 1927 Hardware driver for the Loongson1 SoC Watchdog Timer. 1928 1929config RALINK_WDT 1930 tristate "Ralink SoC watchdog" 1931 select WATCHDOG_CORE 1932 depends on RALINK 1933 help 1934 Hardware driver for the Ralink SoC Watchdog Timer. 1935 1936config GXP_WATCHDOG 1937 tristate "HPE GXP watchdog support" 1938 depends on ARCH_HPE_GXP || COMPILE_TEST 1939 select WATCHDOG_CORE 1940 help 1941 Say Y here to include support for the watchdog timer 1942 in HPE GXP SoCs. 1943 1944 To compile this driver as a module, choose M here. 1945 The module will be called gxp-wdt. 1946 1947config MT7621_WDT 1948 tristate "Mediatek SoC watchdog" 1949 select WATCHDOG_CORE 1950 select REGMAP_MMIO 1951 select MFD_SYSCON 1952 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1953 help 1954 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1955 1956config PIC32_WDT 1957 tristate "Microchip PIC32 hardware watchdog" 1958 select WATCHDOG_CORE 1959 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1960 help 1961 Watchdog driver for the built in watchdog hardware in a PIC32. 1962 1963 Configuration bits must be set appropriately for the watchdog to be 1964 controlled by this driver. 1965 1966 To compile this driver as a loadable module, choose M here. 1967 The module will be called pic32-wdt. 1968 1969config PIC32_DMT 1970 tristate "Microchip PIC32 Deadman Timer" 1971 select WATCHDOG_CORE 1972 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1973 help 1974 Watchdog driver for PIC32 instruction fetch counting timer. This 1975 specific timer is typically be used in mission critical and safety 1976 critical applications, where any single failure of the software 1977 functionality and sequencing must be detected. 1978 1979 To compile this driver as a loadable module, choose M here. 1980 The module will be called pic32-dmt. 1981 1982# PARISC Architecture 1983 1984# POWERPC Architecture 1985 1986config GEF_WDT 1987 tristate "GE Watchdog Timer" 1988 depends on GE_FPGA 1989 help 1990 Watchdog timer found in a number of GE single board computers. 1991 1992config MPC5200_WDT 1993 bool "MPC52xx Watchdog Timer" 1994 depends on PPC_MPC52xx || COMPILE_TEST 1995 help 1996 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1997 1998config 8xxx_WDT 1999 tristate "MPC8xxx Platform Watchdog Timer" 2000 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 2001 select WATCHDOG_CORE 2002 help 2003 This driver is for a SoC level watchdog that exists on some 2004 Freescale PowerPC processors. So far this driver supports: 2005 - MPC8xx watchdogs 2006 - MPC83xx watchdogs 2007 - MPC86xx watchdogs 2008 2009 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 2010 2011config PIKA_WDT 2012 tristate "PIKA FPGA Watchdog" 2013 depends on WARP || (PPC64 && COMPILE_TEST) 2014 default y 2015 help 2016 This enables the watchdog in the PIKA FPGA. Currently used on 2017 the Warp platform. 2018 2019config BOOKE_WDT 2020 tristate "PowerPC Book-E Watchdog Timer" 2021 depends on BOOKE || 4xx 2022 select WATCHDOG_CORE 2023 help 2024 Watchdog driver for PowerPC Book-E chips, such as the Freescale 2025 MPC85xx SOCs and the IBM PowerPC 440. 2026 2027 Please see Documentation/watchdog/watchdog-api.rst for 2028 more information. 2029 2030config BOOKE_WDT_DEFAULT_TIMEOUT 2031 int "PowerPC Book-E Watchdog Timer Default Timeout" 2032 depends on BOOKE_WDT 2033 default 38 if PPC_E500 2034 range 0 63 if PPC_E500 2035 default 3 if !PPC_E500 2036 range 0 3 if !PPC_E500 2037 help 2038 Select the default watchdog timer period to be used by the PowerPC 2039 Book-E watchdog driver. A watchdog "event" occurs when the bit 2040 position represented by this number transitions from zero to one. 2041 2042 For Freescale Book-E processors, this is a number between 0 and 63. 2043 For other Book-E processors, this is a number between 0 and 3. 2044 2045 The value can be overridden by the wdt_period command-line parameter. 2046 2047config MEN_A21_WDT 2048 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2049 select WATCHDOG_CORE 2050 depends on GPIOLIB || COMPILE_TEST 2051 help 2052 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2053 2054 The driver can also be built as a module. If so, the module will be 2055 called mena21_wdt. 2056 2057 If unsure select N here. 2058 2059# PPC64 Architecture 2060 2061config PSERIES_WDT 2062 tristate "POWER Architecture Platform Watchdog Timer" 2063 depends on PPC_PSERIES 2064 select WATCHDOG_CORE 2065 help 2066 Driver for virtual watchdog timers provided by PAPR 2067 hypervisors (e.g. PowerVM, KVM). 2068 2069config WATCHDOG_RTAS 2070 tristate "RTAS watchdog" 2071 depends on PPC_RTAS 2072 help 2073 This driver adds watchdog support for the RTAS watchdog. 2074 2075 To compile this driver as a module, choose M here. The module 2076 will be called wdrtas. 2077 2078# RISC-V Architecture 2079 2080config STARFIVE_WATCHDOG 2081 tristate "StarFive Watchdog support" 2082 depends on ARCH_STARFIVE || COMPILE_TEST 2083 select WATCHDOG_CORE 2084 default ARCH_STARFIVE 2085 help 2086 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2087 SoC. This driver can also be built as a module if choose M. 2088 2089# S390 Architecture 2090 2091config DIAG288_WATCHDOG 2092 tristate "System z diag288 Watchdog" 2093 depends on S390 2094 select WATCHDOG_CORE 2095 help 2096 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2097 provide a virtual watchdog timer to their guest that cause a 2098 user define Control Program command to be executed after a 2099 timeout. 2100 LPAR provides a very similar interface. This driver handles 2101 both. 2102 2103 To compile this driver as a module, choose M here. The module 2104 will be called diag288_wdt. 2105 2106# SUPERH (sh + sh64) Architecture 2107 2108config SH_WDT 2109 tristate "SuperH Watchdog" 2110 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2111 select WATCHDOG_CORE 2112 help 2113 This driver adds watchdog support for the integrated watchdog in the 2114 SuperH processors. If you have one of these processors and wish 2115 to have watchdog support enabled, say Y, otherwise say N. 2116 2117 As a side note, saying Y here will automatically boost HZ to 1000 2118 so that the timer has a chance to clear the overflow counter. On 2119 slower systems (such as the SH-2 and SH-3) this will likely yield 2120 some performance issues. As such, the WDT should be avoided here 2121 unless it is absolutely necessary. 2122 2123 To compile this driver as a module, choose M here: the 2124 module will be called shwdt. 2125 2126# SPARC Architecture 2127 2128# SPARC64 Architecture 2129 2130config WATCHDOG_CP1XXX 2131 tristate "CP1XXX Hardware Watchdog support" 2132 depends on SPARC64 && PCI 2133 help 2134 This is the driver for the hardware watchdog timers present on 2135 Sun Microsystems CompactPCI models CP1400 and CP1500. 2136 2137 To compile this driver as a module, choose M here: the 2138 module will be called cpwatchdog. 2139 2140 If you do not have a CompactPCI model CP1400 or CP1500, or 2141 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2142 you should say N to this option. 2143 2144config WATCHDOG_RIO 2145 tristate "RIO Hardware Watchdog support" 2146 depends on SPARC64 && PCI 2147 help 2148 Say Y here to support the hardware watchdog capability on Sun RIO 2149 machines. The watchdog timeout period is normally one minute but 2150 can be changed with a boot-time parameter. 2151 2152config WATCHDOG_SUN4V 2153 tristate "Sun4v Watchdog support" 2154 select WATCHDOG_CORE 2155 depends on SPARC64 2156 help 2157 Say Y here to support the hypervisor watchdog capability embedded 2158 in the SPARC sun4v architecture. 2159 2160 To compile this driver as a module, choose M here. The module will 2161 be called sun4v_wdt. 2162 2163# XTENSA Architecture 2164 2165# Xen Architecture 2166 2167config XEN_WDT 2168 tristate "Xen Watchdog support" 2169 depends on XEN 2170 select WATCHDOG_CORE 2171 help 2172 Say Y here to support the hypervisor watchdog capability provided 2173 by Xen 4.0 and newer. The watchdog timeout period is normally one 2174 minute but can be changed with a boot-time parameter. 2175 2176config UML_WATCHDOG 2177 tristate "UML watchdog" 2178 depends on UML || COMPILE_TEST 2179 2180# 2181# ISA-based Watchdog Cards 2182# 2183 2184comment "ISA-based Watchdog Cards" 2185 depends on ISA 2186 2187config PCWATCHDOG 2188 tristate "Berkshire Products ISA-PC Watchdog" 2189 depends on ISA 2190 help 2191 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2192 This card simply watches your kernel to make sure it doesn't freeze, 2193 and if it does, it reboots your computer after a certain amount of 2194 time. This driver is like the WDT501 driver but for different 2195 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2196 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2197 2198 To compile this driver as a module, choose M here: the 2199 module will be called pcwd. 2200 2201 Most people will say N. 2202 2203config MIXCOMWD 2204 tristate "Mixcom Watchdog" 2205 depends on ISA 2206 help 2207 This is a driver for the Mixcom hardware watchdog cards. This 2208 watchdog simply watches your kernel to make sure it doesn't freeze, 2209 and if it does, it reboots your computer after a certain amount of 2210 time. 2211 2212 To compile this driver as a module, choose M here: the 2213 module will be called mixcomwd. 2214 2215 Most people will say N. 2216 2217config WDT 2218 tristate "WDT Watchdog timer" 2219 depends on ISA 2220 help 2221 If you have a WDT500P or WDT501P watchdog board, say Y here, 2222 otherwise N. It is not possible to probe for this board, which means 2223 that you have to inform the kernel about the IO port and IRQ that 2224 is needed (you can do this via the io and irq parameters) 2225 2226 To compile this driver as a module, choose M here: the 2227 module will be called wdt. 2228 2229# 2230# PCI-based Watchdog Cards 2231# 2232 2233comment "PCI-based Watchdog Cards" 2234 depends on PCI 2235 2236config PCIPCWATCHDOG 2237 tristate "Berkshire Products PCI-PC Watchdog" 2238 depends on PCI && HAS_IOPORT 2239 help 2240 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2241 This card simply watches your kernel to make sure it doesn't freeze, 2242 and if it does, it reboots your computer after a certain amount of 2243 time. The card can also monitor the internal temperature of the PC. 2244 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2245 2246 To compile this driver as a module, choose M here: the 2247 module will be called pcwd_pci. 2248 2249 Most people will say N. 2250 2251config WDTPCI 2252 tristate "PCI-WDT500/501 Watchdog timer" 2253 depends on PCI && HAS_IOPORT 2254 help 2255 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2256 2257 If you have a PCI-WDT501 watchdog board then you can enable the 2258 temperature sensor by setting the type parameter to 501. 2259 2260 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2261 can do this via the tachometer parameter. Only do this if you have a 2262 fan tachometer actually set up. 2263 2264 To compile this driver as a module, choose M here: the 2265 module will be called wdt_pci. 2266 2267# 2268# USB-based Watchdog Cards 2269# 2270 2271comment "USB-based Watchdog Cards" 2272 depends on USB 2273 2274config USBPCWATCHDOG 2275 tristate "Berkshire Products USB-PC Watchdog" 2276 depends on USB 2277 help 2278 This is the driver for the Berkshire Products USB-PC Watchdog card. 2279 This card simply watches your kernel to make sure it doesn't freeze, 2280 and if it does, it reboots your computer after a certain amount of 2281 time. The card can also monitor the internal temperature of the PC. 2282 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2283 2284 To compile this driver as a module, choose M here: the 2285 module will be called pcwd_usb. 2286 2287 Most people will say N. 2288 2289config KEEMBAY_WATCHDOG 2290 tristate "Intel Keem Bay SoC non-secure watchdog" 2291 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2292 select WATCHDOG_CORE 2293 help 2294 This option enable support for an In-secure watchdog timer driver for 2295 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2296 count unit. An interrupt will be triggered, when the count crosses 2297 the threshold configured in the register. 2298 2299 To compile this driver as a module, choose M here: the 2300 module will be called keembay_wdt. 2301 2302endif # WATCHDOG 2303