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 CROS_EC_WATCHDOG 185 tristate "ChromeOS EC-based watchdog" 186 select WATCHDOG_CORE 187 depends on CROS_EC 188 help 189 Watchdog driver for Chromebook devices equipped with embedded controller. 190 Trigger event is recorded in EC and checked on the subsequent boot. 191 192 To compile this driver as a module, choose M here: the 193 module will be called cros_ec_wdt. 194 195config DA9052_WATCHDOG 196 tristate "Dialog DA9052 Watchdog" 197 depends on PMIC_DA9052 || COMPILE_TEST 198 select WATCHDOG_CORE 199 help 200 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 201 cause system reset. 202 203 Say Y here to include support for the DA9052 watchdog. 204 Alternatively say M to compile the driver as a module, 205 which will be called da9052_wdt. 206 207config DA9055_WATCHDOG 208 tristate "Dialog Semiconductor DA9055 Watchdog" 209 depends on MFD_DA9055 || COMPILE_TEST 210 select WATCHDOG_CORE 211 help 212 If you say yes here you get support for watchdog on the Dialog 213 Semiconductor DA9055 PMIC. 214 215 This driver can also be built as a module. If so, the module 216 will be called da9055_wdt. 217 218config DA9063_WATCHDOG 219 tristate "Dialog DA9063 Watchdog" 220 depends on MFD_DA9063 || COMPILE_TEST 221 depends on I2C 222 select WATCHDOG_CORE 223 help 224 Support for the watchdog in the DA9063 PMIC. 225 226 This driver can be built as a module. The module name is da9063_wdt. 227 228config DA9062_WATCHDOG 229 tristate "Dialog DA9062/61 Watchdog" 230 depends on MFD_DA9062 || COMPILE_TEST 231 depends on I2C 232 select WATCHDOG_CORE 233 help 234 Support for the watchdog in the DA9062 and DA9061 PMICs. 235 236 This driver can be built as a module. The module name is da9062_wdt. 237 238config GPIO_WATCHDOG 239 tristate "Watchdog device controlled through GPIO-line" 240 depends on OF_GPIO 241 select WATCHDOG_CORE 242 help 243 If you say yes here you get support for watchdog device 244 controlled through GPIO-line. 245 246config GPIO_WATCHDOG_ARCH_INITCALL 247 bool "Register the watchdog as early as possible" 248 depends on GPIO_WATCHDOG=y 249 help 250 In some situations, the default initcall level (module_init) 251 in not early enough in the boot process to avoid the watchdog 252 to be triggered. 253 If you say yes here, the initcall level would be raised to 254 arch_initcall. 255 If in doubt, say N. 256 257config LENOVO_SE10_WDT 258 tristate "Lenovo SE10 Watchdog" 259 select WATCHDOG_CORE 260 help 261 If you say yes here you get support for the watchdog 262 functionality for the Lenovo SE10 platform. 263 264 This driver can also be built as a module. If so, the module 265 will be called lenovo-se10-wdt. 266 267config MENF21BMC_WATCHDOG 268 tristate "MEN 14F021P00 BMC Watchdog" 269 depends on MFD_MENF21BMC || COMPILE_TEST 270 depends on I2C 271 select WATCHDOG_CORE 272 help 273 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 274 275 This driver can also be built as a module. If so the module 276 will be called menf21bmc_wdt. 277 278config MENZ069_WATCHDOG 279 tristate "MEN 16Z069 Watchdog" 280 depends on MCB 281 select WATCHDOG_CORE 282 help 283 Say Y here to include support for the MEN 16Z069 Watchdog. 284 285 This driver can also be built as a module. If so the module 286 will be called menz069_wdt. 287 288config WDAT_WDT 289 tristate "ACPI Watchdog Action Table (WDAT)" 290 depends on ACPI 291 select WATCHDOG_CORE 292 select ACPI_WATCHDOG 293 help 294 This driver adds support for systems with ACPI Watchdog Action 295 Table (WDAT) table. Servers typically have this but it can be 296 found on some desktop machines as well. This driver will take 297 over the native iTCO watchdog driver found on many Intel CPUs. 298 299 To compile this driver as module, choose M here: the module will 300 be called wdat_wdt. 301 302config WM831X_WATCHDOG 303 tristate "WM831x watchdog" 304 depends on MFD_WM831X 305 select WATCHDOG_CORE 306 help 307 Support for the watchdog in the WM831x AudioPlus PMICs. When 308 the watchdog triggers the system will be reset. 309 310config WM8350_WATCHDOG 311 tristate "WM8350 watchdog" 312 depends on MFD_WM8350 313 select WATCHDOG_CORE 314 help 315 Support for the watchdog in the WM8350 AudioPlus PMIC. When 316 the watchdog triggers the system will be reset. 317 318config XILINX_WATCHDOG 319 tristate "Xilinx Watchdog timer" 320 depends on HAS_IOMEM 321 select WATCHDOG_CORE 322 help 323 Watchdog driver for the xps_timebase_wdt IP core. 324 325 To compile this driver as a module, choose M here: the 326 module will be called of_xilinx_wdt. 327 328config XILINX_WINDOW_WATCHDOG 329 tristate "Xilinx window watchdog timer" 330 depends on HAS_IOMEM 331 depends on ARM64 || COMPILE_TEST 332 select WATCHDOG_CORE 333 help 334 Window watchdog driver for the versal_wwdt IP core. 335 Window watchdog timer(WWDT) contains closed(first) and 336 open(second) window with 32 bit width. Write to the watchdog 337 timer within predefined window periods of time. This means 338 a period that is not too soon and a period that is not too 339 late. The WWDT has to be restarted within the open window time. 340 If software tries to restart WWDT outside of the open window 341 time period, it generates a reset. 342 343 To compile this driver as a module, choose M here: the 344 module will be called xilinx_wwdt. 345 346config ZIIRAVE_WATCHDOG 347 tristate "Zodiac RAVE Watchdog Timer" 348 depends on I2C 349 select WATCHDOG_CORE 350 help 351 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 352 Processor. 353 354 To compile this driver as a module, choose M here: the 355 module will be called ziirave_wdt. 356 357config RAVE_SP_WATCHDOG 358 tristate "RAVE SP Watchdog timer" 359 depends on RAVE_SP_CORE 360 depends on NVMEM || !NVMEM 361 select WATCHDOG_CORE 362 help 363 Support for the watchdog on RAVE SP device. 364 365config MLX_WDT 366 tristate "Mellanox Watchdog" 367 depends on MELLANOX_PLATFORM || COMPILE_TEST 368 select WATCHDOG_CORE 369 select REGMAP 370 help 371 This is the driver for the hardware watchdog on Mellanox systems. 372 If you are going to use it, say Y here, otherwise N. 373 This driver can be used together with the watchdog daemon. 374 It can also watch your kernel to make sure it doesn't freeze, 375 and if it does, it reboots your system after a certain amount of 376 time. 377 378 To compile this driver as a module, choose M here: the 379 module will be called mlx-wdt. 380 381config SL28CPLD_WATCHDOG 382 tristate "Kontron sl28cpld Watchdog" 383 depends on MFD_SL28CPLD || COMPILE_TEST 384 select WATCHDOG_CORE 385 help 386 Say Y here to include support for the watchdog timer 387 on the Kontron sl28 CPLD. 388 389 To compile this driver as a module, choose M here: the 390 module will be called sl28cpld_wdt. 391 392# ALPHA Architecture 393 394# ARM Architecture 395 396config ARM_SP805_WATCHDOG 397 tristate "ARM SP805 Watchdog" 398 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 399 select WATCHDOG_CORE 400 help 401 ARM Primecell SP805 Watchdog timer. This will reboot your system when 402 the timeout is reached. 403 404config ARM_SBSA_WATCHDOG 405 tristate "ARM SBSA Generic Watchdog" 406 depends on ARM64 407 depends on ARM_ARCH_TIMER 408 select WATCHDOG_CORE 409 help 410 ARM SBSA Generic Watchdog has two stage timeouts: 411 the first signal (WS0) is for alerting the system by interrupt, 412 the second one (WS1) is a real hardware reset. 413 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 414 415 This driver can operate ARM SBSA Generic Watchdog as a single stage 416 or a two stages watchdog, it depends on the module parameter "action". 417 418 Note: the maximum timeout in the two stages mode is half of that in 419 the single stage mode. 420 421 To compile this driver as module, choose M here: The module 422 will be called sbsa_gwdt. 423 424config ARMADA_37XX_WATCHDOG 425 tristate "Armada 37xx watchdog" 426 depends on ARCH_MVEBU || COMPILE_TEST 427 depends on HAS_IOMEM 428 select MFD_SYSCON 429 select WATCHDOG_CORE 430 help 431 Say Y here to include support for the watchdog timer found on 432 Marvell Armada 37xx SoCs. 433 To compile this driver as a module, choose M here: the 434 module will be called armada_37xx_wdt. 435 436config ASM9260_WATCHDOG 437 tristate "Alphascale ASM9260 watchdog" 438 depends on MACH_ASM9260 || COMPILE_TEST 439 depends on OF 440 select WATCHDOG_CORE 441 select RESET_CONTROLLER 442 help 443 Watchdog timer embedded into Alphascale asm9260 chips. This will 444 reboot your system when the timeout is reached. 445 446config AT91RM9200_WATCHDOG 447 tristate "AT91RM9200 watchdog" 448 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 449 help 450 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 451 system when the timeout is reached. 452 453config AT91SAM9X_WATCHDOG 454 tristate "AT91SAM9X / AT91CAP9 watchdog" 455 depends on ARCH_AT91 || COMPILE_TEST 456 select WATCHDOG_CORE 457 help 458 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 459 reboot your system when the timeout is reached. 460 461config SAMA5D4_WATCHDOG 462 tristate "Atmel SAMA5D4 Watchdog Timer" 463 depends on ARCH_AT91 || COMPILE_TEST 464 select WATCHDOG_CORE 465 help 466 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 467 Its Watchdog Timer Mode Register can be written more than once. 468 This will reboot your system when the timeout is reached. 469 470config CADENCE_WATCHDOG 471 tristate "Cadence Watchdog Timer" 472 depends on HAS_IOMEM 473 select WATCHDOG_CORE 474 help 475 Say Y here if you want to include support for the watchdog 476 timer in the Xilinx Zynq. 477 478config 21285_WATCHDOG 479 tristate "DC21285 watchdog" 480 depends on FOOTBRIDGE 481 help 482 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 483 here if you wish to use this. Alternatively say M to compile the 484 driver as a module, which will be called wdt285. 485 486 This driver does not work on all machines. In particular, early CATS 487 boards have hardware problems that will cause the machine to simply 488 lock up if the watchdog fires. 489 490 "If in doubt, leave it out" - say N. 491 492config 977_WATCHDOG 493 tristate "NetWinder WB83C977 watchdog" 494 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 495 help 496 Say Y here to include support for the WB977 watchdog included in 497 NetWinder machines. Alternatively say M to compile the driver as 498 a module, which will be called wdt977. 499 500 Not sure? It's safe to say N. 501 502config FTWDT010_WATCHDOG 503 tristate "Faraday Technology FTWDT010 watchdog" 504 depends on ARM || COMPILE_TEST 505 select WATCHDOG_CORE 506 default ARCH_GEMINI 507 help 508 Say Y here if to include support for the Faraday Technology 509 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 510 family of devices. 511 512 To compile this driver as a module, choose M here: the 513 module will be called ftwdt010_wdt. 514 515config IXP4XX_WATCHDOG 516 tristate "IXP4xx Watchdog" 517 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 518 select WATCHDOG_CORE 519 help 520 Say Y here if to include support for the watchdog timer 521 in the Intel IXP4xx network processors. This driver can 522 be built as a module by choosing M. The module will 523 be called ixp4xx_wdt. 524 525 Note: The internal IXP4xx watchdog does a soft CPU reset 526 which doesn't reset any peripherals. There are circumstances 527 where the watchdog will fail to reset the board correctly 528 (e.g., if the boot ROM is in an unreadable state). 529 530 Say N if you are unsure. 531 532config S3C2410_WATCHDOG 533 tristate "S3C6410/S5Pv210/Exynos Watchdog" 534 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 535 select WATCHDOG_CORE 536 help 537 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 538 SoCs. This will reboot the system when the timer expires with 539 the watchdog enabled. 540 541 The driver is limited by the speed of the system's PCLK 542 signal, so with reasonably fast systems (PCLK around 50-66MHz) 543 then watchdog intervals of over approximately 20seconds are 544 unavailable. 545 546 Choose Y/M here only if you build for such Samsung SoC. 547 The driver can be built as a module by choosing M, and will 548 be called s3c2410_wdt. 549 550config SA1100_WATCHDOG 551 tristate "SA1100/PXA2xx watchdog" 552 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 553 help 554 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 555 reboot your system when timeout is reached. 556 557 NOTE: once enabled, this timer cannot be disabled. 558 559 To compile this driver as a module, choose M here: the 560 module will be called sa1100_wdt. 561 562config DW_WATCHDOG 563 tristate "Synopsys DesignWare watchdog" 564 depends on HAS_IOMEM 565 select WATCHDOG_CORE 566 help 567 Say Y here if to include support for the Synopsys DesignWare 568 watchdog timer found in many chips. 569 To compile this driver as a module, choose M here: the 570 module will be called dw_wdt. 571 572config EP93XX_WATCHDOG 573 tristate "EP93xx Watchdog" 574 depends on ARCH_EP93XX || COMPILE_TEST 575 select WATCHDOG_CORE 576 help 577 Say Y here if to include support for the watchdog timer 578 embedded in the Cirrus Logic EP93xx family of devices. 579 580 To compile this driver as a module, choose M here: the 581 module will be called ep93xx_wdt. 582 583config OMAP_WATCHDOG 584 tristate "OMAP Watchdog" 585 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 586 select WATCHDOG_CORE 587 help 588 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 589 Say 'Y' here to enable the 590 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 591 592config PNX4008_WATCHDOG 593 tristate "LPC32XX Watchdog" 594 depends on ARCH_LPC32XX || COMPILE_TEST 595 select WATCHDOG_CORE 596 help 597 Say Y here if to include support for the watchdog timer 598 in the LPC32XX processor. 599 This driver can be built as a module by choosing M. The module 600 will be called pnx4008_wdt. 601 602 Say N if you are unsure. 603 604config DAVINCI_WATCHDOG 605 tristate "DaVinci watchdog" 606 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 607 select WATCHDOG_CORE 608 help 609 Say Y here if to include support for the watchdog timer 610 in the DaVinci DM644x/DM646x or Keystone processors. 611 To compile this driver as a module, choose M here: the 612 module will be called davinci_wdt. 613 614 NOTE: once enabled, this timer cannot be disabled. 615 Say N if you are unsure. 616 617config K3_RTI_WATCHDOG 618 tristate "Texas Instruments K3 RTI watchdog" 619 depends on ARCH_K3 || COMPILE_TEST 620 select WATCHDOG_CORE 621 help 622 Say Y here if you want to include support for the K3 watchdog 623 timer (RTI module) available in the K3 generation of processors. 624 625config ORION_WATCHDOG 626 tristate "Orion watchdog" 627 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 628 depends on ARM 629 select WATCHDOG_CORE 630 help 631 Say Y here if to include support for the watchdog timer 632 in the Marvell Orion5x and Kirkwood ARM SoCs. 633 To compile this driver as a module, choose M here: the 634 module will be called orion_wdt. 635 636config RN5T618_WATCHDOG 637 tristate "Ricoh RN5T618 watchdog" 638 depends on MFD_RN5T618 || COMPILE_TEST 639 select WATCHDOG_CORE 640 help 641 If you say yes here you get support for watchdog on the Ricoh 642 RN5T618 PMIC. 643 644 This driver can also be built as a module. If so, the module 645 will be called rn5t618_wdt. 646 647config SUNXI_WATCHDOG 648 tristate "Allwinner SoCs watchdog support" 649 depends on ARCH_SUNXI || COMPILE_TEST 650 select WATCHDOG_CORE 651 help 652 Say Y here to include support for the watchdog timer 653 in Allwinner SoCs. 654 To compile this driver as a module, choose M here: the 655 module will be called sunxi_wdt. 656 657config NPCM7XX_WATCHDOG 658 tristate "Nuvoton NPCM750 watchdog" 659 depends on ARCH_NPCM || COMPILE_TEST 660 default y if ARCH_NPCM7XX 661 select WATCHDOG_CORE 662 help 663 Say Y here to include Watchdog timer support for the 664 watchdog embedded into the NPCM7xx. 665 This watchdog is used to reset the system and thus cannot be 666 compiled as a module. 667 668config TWL4030_WATCHDOG 669 tristate "TWL4030 Watchdog" 670 depends on TWL4030_CORE 671 select WATCHDOG_CORE 672 help 673 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 674 watchdog timer support for TWL4030 chips. 675 676config STMP3XXX_RTC_WATCHDOG 677 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 678 depends on RTC_DRV_STMP || COMPILE_TEST 679 select WATCHDOG_CORE 680 help 681 Say Y here to include support for the watchdog timer inside 682 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 683 To compile this driver as a module, choose M here: the 684 module will be called stmp3xxx_rtc_wdt. 685 686config TS4800_WATCHDOG 687 tristate "TS-4800 Watchdog" 688 depends on HAS_IOMEM && OF 689 depends on SOC_IMX51 || COMPILE_TEST 690 select WATCHDOG_CORE 691 select MFD_SYSCON 692 help 693 Technologic Systems TS-4800 has watchdog timer implemented in 694 an external FPGA. Say Y here if you want to support for the 695 watchdog timer on TS-4800 board. 696 697config TS72XX_WATCHDOG 698 tristate "TS-72XX SBC Watchdog" 699 depends on MACH_TS72XX || COMPILE_TEST 700 select WATCHDOG_CORE 701 help 702 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 703 watchdog timer implemented in a external CPLD chip. Say Y here 704 if you want to support for the watchdog timer on TS-72XX boards. 705 706 To compile this driver as a module, choose M here: the 707 module will be called ts72xx_wdt. 708 709config MAX63XX_WATCHDOG 710 tristate "Max63xx watchdog" 711 depends on HAS_IOMEM 712 select WATCHDOG_CORE 713 help 714 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 715 716config MAX77620_WATCHDOG 717 tristate "Maxim Max77620 Watchdog Timer" 718 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 719 select WATCHDOG_CORE 720 help 721 This is the driver for the Max77620 watchdog timer. 722 Say 'Y' here to enable the watchdog timer support for 723 MAX77620 chips. To compile this driver as a module, 724 choose M here: the module will be called max77620_wdt. 725 726config IMX2_WDT 727 tristate "IMX2+ Watchdog" 728 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 729 select REGMAP_MMIO 730 select WATCHDOG_CORE 731 help 732 This is the driver for the hardware watchdog 733 on the Freescale IMX2 and later processors. 734 If you have one of these processors and wish to have 735 watchdog support enabled, say Y, otherwise say N. 736 737 To compile this driver as a module, choose M here: the 738 module will be called imx2_wdt. 739 740config IMX_SC_WDT 741 tristate "IMX SC Watchdog" 742 depends on HAVE_ARM_SMCCC 743 depends on IMX_SCU || COMPILE_TEST 744 select WATCHDOG_CORE 745 help 746 This is the driver for the system controller watchdog 747 on the NXP i.MX SoCs with system controller inside, the 748 watchdog driver will call ARM SMC API and trap into 749 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 750 will request system controller to execute the operations. 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 imx_sc_wdt. 756 757config IMX7ULP_WDT 758 tristate "IMX7ULP Watchdog" 759 depends on ARCH_MXC || COMPILE_TEST 760 select WATCHDOG_CORE 761 help 762 This is the driver for the hardware watchdog on the Freescale 763 IMX7ULP and later processors. If you have one of these 764 processors and wish to have watchdog support enabled, 765 say Y, otherwise say N. 766 767 To compile this driver as a module, choose M here: the 768 module will be called imx7ulp_wdt. 769 770config DB500_WATCHDOG 771 tristate "ST-Ericsson DB800 watchdog" 772 depends on MFD_DB8500_PRCMU 773 select WATCHDOG_CORE 774 default y 775 help 776 Say Y here to include Watchdog timer support for the watchdog 777 existing in the prcmu of ST-Ericsson DB8500 platform. 778 779 To compile this driver as a module, choose M here: the 780 module will be called db500_wdt. 781 782config RETU_WATCHDOG 783 tristate "Retu watchdog" 784 depends on MFD_RETU 785 select WATCHDOG_CORE 786 help 787 Retu watchdog driver for Nokia Internet Tablets (770, N800, 788 N810). At least on N800 the watchdog cannot be disabled, so 789 this driver is essential and you should enable it. 790 791 To compile this driver as a module, choose M here: the 792 module will be called retu_wdt. 793 794config MOXART_WDT 795 tristate "MOXART watchdog" 796 depends on ARCH_MOXART || COMPILE_TEST 797 help 798 Say Y here to include Watchdog timer support for the watchdog 799 existing on the MOXA ART SoC series platforms. 800 801 To compile this driver as a module, choose M here: the 802 module will be called moxart_wdt. 803 804config ST_LPC_WATCHDOG 805 tristate "STMicroelectronics LPC Watchdog" 806 depends on ARCH_STI || COMPILE_TEST 807 depends on OF 808 select WATCHDOG_CORE 809 help 810 Say Y here to include STMicroelectronics Low Power Controller 811 (LPC) based Watchdog timer support. 812 813 To compile this driver as a module, choose M here: the 814 module will be called st_lpc_wdt. 815 816config TEGRA_WATCHDOG 817 tristate "Tegra watchdog" 818 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 819 select WATCHDOG_CORE 820 help 821 Say Y here to include support for the watchdog timer 822 embedded in NVIDIA Tegra SoCs. 823 824 To compile this driver as a module, choose M here: the 825 module will be called tegra_wdt. 826 827config QCOM_WDT 828 tristate "QCOM watchdog" 829 depends on HAS_IOMEM 830 depends on ARCH_QCOM || COMPILE_TEST 831 select WATCHDOG_CORE 832 help 833 Say Y here to include Watchdog timer support for the watchdog found 834 on QCOM chipsets. Currently supported targets are the MSM8960, 835 APQ8064, and IPQ8064. 836 837 To compile this driver as a module, choose M here: the 838 module will be called qcom_wdt. 839 840config MESON_GXBB_WATCHDOG 841 tristate "Amlogic Meson GXBB SoCs watchdog support" 842 depends on ARCH_MESON || COMPILE_TEST 843 select WATCHDOG_CORE 844 help 845 Say Y here to include support for the watchdog timer 846 in Amlogic Meson GXBB SoCs. 847 To compile this driver as a module, choose M here: the 848 module will be called meson_gxbb_wdt. 849 850config MESON_WATCHDOG 851 tristate "Amlogic Meson SoCs watchdog support" 852 depends on ARCH_MESON || COMPILE_TEST 853 select WATCHDOG_CORE 854 help 855 Say Y here to include support for the watchdog timer 856 in Amlogic Meson SoCs. 857 To compile this driver as a module, choose M here: the 858 module will be called meson_wdt. 859 860config MEDIATEK_WATCHDOG 861 tristate "Mediatek SoCs watchdog support" 862 depends on ARCH_MEDIATEK || COMPILE_TEST 863 default ARCH_MEDIATEK 864 select WATCHDOG_CORE 865 select RESET_CONTROLLER 866 help 867 Say Y here to include support for the watchdog timer 868 in Mediatek SoCs. 869 To compile this driver as a module, choose M here: the 870 module will be called mtk_wdt. 871 872config DIGICOLOR_WATCHDOG 873 tristate "Conexant Digicolor SoCs watchdog support" 874 depends on ARCH_DIGICOLOR || COMPILE_TEST 875 select WATCHDOG_CORE 876 help 877 Say Y here to include support for the watchdog timer 878 in Conexant Digicolor SoCs. 879 To compile this driver as a module, choose M here: the 880 module will be called digicolor_wdt. 881 882config ARM_SMC_WATCHDOG 883 tristate "ARM Secure Monitor Call based watchdog support" 884 depends on ARM || ARM64 885 depends on OF 886 depends on HAVE_ARM_SMCCC 887 select WATCHDOG_CORE 888 help 889 Say Y here to include support for a watchdog timer 890 implemented by the EL3 Secure Monitor on ARM platforms. 891 Requires firmware support. 892 To compile this driver as a module, choose M here: the 893 module will be called arm_smc_wdt. 894 895config LPC18XX_WATCHDOG 896 tristate "LPC18xx/43xx Watchdog" 897 depends on ARCH_LPC18XX || COMPILE_TEST 898 depends on HAS_IOMEM 899 select WATCHDOG_CORE 900 help 901 Say Y here if to include support for the watchdog timer 902 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 903 processors. 904 To compile this driver as a module, choose M here: the 905 module will be called lpc18xx_wdt. 906 907config RENESAS_WDT 908 tristate "Renesas WDT Watchdog" 909 depends on ARCH_RENESAS || COMPILE_TEST 910 select WATCHDOG_CORE 911 help 912 This driver adds watchdog support for the integrated watchdogs in the 913 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 914 915config RENESAS_RZAWDT 916 tristate "Renesas RZ/A WDT Watchdog" 917 depends on ARCH_RENESAS || COMPILE_TEST 918 select WATCHDOG_CORE 919 help 920 This driver adds watchdog support for the integrated watchdogs in the 921 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 922 923config RENESAS_RZN1WDT 924 tristate "Renesas RZ/N1 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 RZ/N1 SoCs. These watchdogs can be used to reset a system. 930 931config RENESAS_RZG2LWDT 932 tristate "Renesas RZ/G2L 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/G2L SoCs. These watchdogs can be used to reset a system. 938 939config ASPEED_WATCHDOG 940 tristate "Aspeed BMC watchdog support" 941 depends on ARCH_ASPEED || COMPILE_TEST 942 select WATCHDOG_CORE 943 help 944 Say Y here to include support for the watchdog timer 945 in Aspeed BMC SoCs. 946 947 This driver is required to reboot the SoC. 948 949 To compile this driver as a module, choose M here: the 950 module will be called aspeed_wdt. 951 952config STM32_WATCHDOG 953 tristate "STM32 Independent WatchDoG (IWDG) support" 954 depends on ARCH_STM32 || COMPILE_TEST 955 select WATCHDOG_CORE 956 default y 957 help 958 Say Y here to include support for the watchdog timer 959 in stm32 SoCs. 960 961 To compile this driver as a module, choose M here: the 962 module will be called stm32_iwdg. 963 964config STPMIC1_WATCHDOG 965 tristate "STPMIC1 PMIC watchdog support" 966 depends on MFD_STPMIC1 967 select WATCHDOG_CORE 968 help 969 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 970 If the watchdog timer expires, stpmic1 will shut down all its power 971 supplies. 972 973 To compile this driver as a module, choose M here: the 974 module will be called spmic1_wdt. 975 976config UNIPHIER_WATCHDOG 977 tristate "UniPhier watchdog support" 978 depends on ARCH_UNIPHIER || COMPILE_TEST 979 depends on OF && MFD_SYSCON 980 select WATCHDOG_CORE 981 help 982 Say Y here to include support watchdog timer embedded 983 into the UniPhier system. 984 985 To compile this driver as a module, choose M here: the 986 module will be called uniphier_wdt. 987 988config RTD119X_WATCHDOG 989 bool "Realtek RTD119x/RTD129x watchdog support" 990 depends on ARCH_REALTEK || COMPILE_TEST 991 depends on OF 992 select WATCHDOG_CORE 993 default ARCH_REALTEK 994 help 995 Say Y here to include support for the watchdog timer in 996 Realtek RTD1295 SoCs. 997 998config REALTEK_OTTO_WDT 999 tristate "Realtek Otto MIPS watchdog support" 1000 depends on MACH_REALTEK_RTL || COMPILE_TEST 1001 depends on COMMON_CLK 1002 select WATCHDOG_CORE 1003 default MACH_REALTEK_RTL 1004 help 1005 Say Y here to include support for the watchdog timer on Realtek 1006 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 1007 notifications and system reset on timeout. 1008 1009 When built as a module this will be called realtek_otto_wdt. 1010 1011config SPRD_WATCHDOG 1012 tristate "Spreadtrum watchdog support" 1013 depends on ARCH_SPRD || COMPILE_TEST 1014 select WATCHDOG_CORE 1015 help 1016 Say Y here to include watchdog timer supported 1017 by Spreadtrum system. 1018 1019config PM8916_WATCHDOG 1020 tristate "QCOM PM8916 pmic watchdog" 1021 depends on OF && MFD_SPMI_PMIC 1022 select WATCHDOG_CORE 1023 help 1024 Say Y here to include support watchdog timer embedded into the 1025 pm8916 module. 1026 1027config VISCONTI_WATCHDOG 1028 tristate "Toshiba Visconti series watchdog support" 1029 depends on ARCH_VISCONTI || COMPILE_TEST 1030 select WATCHDOG_CORE 1031 help 1032 Say Y here to include support for the watchdog timer in Toshiba 1033 Visconti SoCs. 1034 1035config MSC313E_WATCHDOG 1036 tristate "MStar MSC313e watchdog" 1037 depends on ARCH_MSTARV7 || COMPILE_TEST 1038 select WATCHDOG_CORE 1039 help 1040 Say Y here to include support for the Watchdog timer embedded 1041 into MStar MSC313e chips. This will reboot your system when the 1042 timeout is reached. 1043 1044 To compile this driver as a module, choose M here: the 1045 module will be called msc313e_wdt. 1046 1047config APPLE_WATCHDOG 1048 tristate "Apple SoC watchdog" 1049 depends on ARCH_APPLE || COMPILE_TEST 1050 select WATCHDOG_CORE 1051 help 1052 Say Y here to include support for the Watchdog found in Apple 1053 SoCs such as the M1. Next to the common watchdog features this 1054 driver is also required in order to reboot these SoCs. 1055 1056 To compile this driver as a module, choose M here: the 1057 module will be called apple_wdt. 1058 1059config SUNPLUS_WATCHDOG 1060 tristate "Sunplus watchdog support" 1061 depends on ARCH_SUNPLUS || COMPILE_TEST 1062 select WATCHDOG_CORE 1063 help 1064 Say Y here to include support for the watchdog timer 1065 in Sunplus SoCs. 1066 1067 To compile this driver as a module, choose M here: the 1068 module will be called sunplus_wdt. 1069 1070# X86 (i386 + ia64 + x86_64) Architecture 1071 1072config ACQUIRE_WDT 1073 tristate "Acquire SBC Watchdog Timer" 1074 depends on X86 1075 help 1076 This is the driver for the hardware watchdog on Single Board 1077 Computers produced by Acquire Inc (and others). This watchdog 1078 simply watches your kernel to make sure it doesn't freeze, and if 1079 it does, it reboots your computer after a certain amount of time. 1080 1081 To compile this driver as a module, choose M here: the 1082 module will be called acquirewdt. 1083 1084 Most people will say N. 1085 1086config ADVANTECH_WDT 1087 tristate "Advantech SBC Watchdog Timer" 1088 depends on X86 || COMPILE_TEST 1089 help 1090 If you are configuring a Linux kernel for the Advantech single-board 1091 computer, say `Y' here to support its built-in watchdog timer 1092 feature. More information can be found at 1093 <https://www.advantech.com.tw/products/> 1094 1095config ADVANTECH_EC_WDT 1096 tristate "Advantech Embedded Controller Watchdog Timer" 1097 depends on X86 || COMPILE_TEST 1098 select ISA_BUS_API 1099 select WATCHDOG_CORE 1100 help 1101 This driver supports Advantech products with ITE based Embedded Controller. 1102 It does not support Advantech products with other ECs or without EC. 1103 1104config ALIM1535_WDT 1105 tristate "ALi M1535 PMU Watchdog Timer" 1106 depends on (X86 || COMPILE_TEST) && PCI 1107 help 1108 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1109 1110 To compile this driver as a module, choose M here: the 1111 module will be called alim1535_wdt. 1112 1113 Most people will say N. 1114 1115config ALIM7101_WDT 1116 tristate "ALi M7101 PMU Computer Watchdog" 1117 depends on PCI 1118 help 1119 This is the driver for the hardware watchdog on the ALi M7101 PMU 1120 as used in the x86 Cobalt servers and also found in some 1121 SPARC Netra servers too. 1122 1123 To compile this driver as a module, choose M here: the 1124 module will be called alim7101_wdt. 1125 1126 Most people will say N. 1127 1128config EBC_C384_WDT 1129 tristate "WinSystems EBC-C384 Watchdog Timer" 1130 depends on X86 || COMPILE_TEST 1131 select ISA_BUS_API 1132 select WATCHDOG_CORE 1133 help 1134 Enables watchdog timer support for the watchdog timer on the 1135 WinSystems EBC-C384 motherboard. The timeout may be configured via 1136 the timeout module parameter. 1137 1138config EXAR_WDT 1139 tristate "Exar Watchdog Timer" 1140 depends on X86 || COMPILE_TEST 1141 select WATCHDOG_CORE 1142 help 1143 Enables watchdog timer support for the watchdog timer present 1144 in some Exar/MaxLinear UART chips like the XR28V38x. 1145 1146 To compile this driver as a module, choose M here: the 1147 module will be called exar_wdt. 1148 1149config F71808E_WDT 1150 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1151 depends on X86 || COMPILE_TEST 1152 select WATCHDOG_CORE 1153 help 1154 This is the driver for the hardware watchdog on the Fintek F71808E, 1155 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1156 F81866 Super I/O controllers. 1157 1158 You can compile this driver directly into the kernel, or use 1159 it as a module. The module will be called f71808e_wdt. 1160 1161config SP5100_TCO 1162 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1163 depends on (X86 || COMPILE_TEST) && PCI 1164 select WATCHDOG_CORE 1165 help 1166 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1167 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1168 the machine after its expiration. The expiration time can be 1169 configured with the "heartbeat" parameter. 1170 1171 To compile this driver as a module, choose M here: the 1172 module will be called sp5100_tco. 1173 1174config GEODE_WDT 1175 tristate "AMD Geode CS5535/CS5536 Watchdog" 1176 depends on CS5535_MFGPT 1177 help 1178 This driver enables a watchdog capability built into the 1179 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1180 processors. This watchdog watches your kernel to make sure 1181 it doesn't freeze, and if it does, it reboots your computer after 1182 a certain amount of time. 1183 1184 You can compile this driver directly into the kernel, or use 1185 it as a module. The module will be called geodewdt. 1186 1187config SC520_WDT 1188 tristate "AMD Elan SC520 processor Watchdog" 1189 depends on MELAN || COMPILE_TEST 1190 help 1191 This is the driver for the hardware watchdog built in to the 1192 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1193 This watchdog simply watches your kernel to make sure it doesn't 1194 freeze, and if it does, it reboots your computer after a certain 1195 amount of time. 1196 1197 You can compile this driver directly into the kernel, or use 1198 it as a module. The module will be called sc520_wdt. 1199 1200config SBC_FITPC2_WATCHDOG 1201 tristate "Compulab SBC-FITPC2 watchdog" 1202 depends on X86 || COMPILE_TEST 1203 help 1204 This is the driver for the built-in watchdog timer on the fit-PC2, 1205 fit-PC2i, CM-iAM single-board computers made by Compulab. 1206 1207 It's possible to enable the watchdog timer either from BIOS (F2) or 1208 from booted Linux. 1209 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1210 operational range. 1211 1212 Entering BIOS setup temporarily disables watchdog operation regardless 1213 of current state, so system will not be restarted while user is in 1214 BIOS setup. 1215 1216 Once the watchdog is enabled the system will be restarted every 1217 "Watchdog Timer Value" period, so to prevent it user can restart or 1218 disable the watchdog. 1219 1220 To compile this driver as a module, choose M here: the 1221 module will be called sbc_fitpc2_wdt. 1222 1223 Most people will say N. 1224 1225config EUROTECH_WDT 1226 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1227 depends on X86 || COMPILE_TEST 1228 help 1229 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1230 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1231 information are at <http://www.eurotech.it/>. 1232 1233config IB700_WDT 1234 tristate "IB700 SBC Watchdog Timer" 1235 depends on X86 || COMPILE_TEST 1236 help 1237 This is the driver for the hardware watchdog on the IB700 Single 1238 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1239 watchdog simply watches your kernel to make sure it doesn't freeze, 1240 and if it does, it reboots your computer after a certain amount of time. 1241 1242 This driver is like the WDT501 driver but for slightly different 1243 hardware. 1244 1245 To compile this driver as a module, choose M here: the 1246 module will be called ib700wdt. 1247 1248 Most people will say N. 1249 1250config IBMASR 1251 tristate "IBM Automatic Server Restart" 1252 depends on X86 || COMPILE_TEST 1253 help 1254 This is the driver for the IBM Automatic Server Restart watchdog 1255 timer built-in into some eServer xSeries machines. 1256 1257 To compile this driver as a module, choose M here: the 1258 module will be called ibmasr. 1259 1260config WAFER_WDT 1261 tristate "ICP Single Board Computer Watchdog Timer" 1262 depends on X86 || COMPILE_TEST 1263 help 1264 This is a driver for the hardware watchdog on the ICP Single 1265 Board Computer. This driver is working on (at least) the following 1266 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1267 1268 To compile this driver as a module, choose M here: the 1269 module will be called wafer5823wdt. 1270 1271config I6300ESB_WDT 1272 tristate "Intel 6300ESB Timer/Watchdog" 1273 depends on PCI 1274 select WATCHDOG_CORE 1275 help 1276 Hardware driver for the watchdog timer built into the Intel 1277 6300ESB controller hub. 1278 1279 To compile this driver as a module, choose M here: the 1280 module will be called i6300esb. 1281 1282config IE6XX_WDT 1283 tristate "Intel Atom E6xx Watchdog" 1284 depends on (X86 || COMPILE_TEST) && PCI 1285 select WATCHDOG_CORE 1286 select MFD_CORE 1287 select LPC_SCH 1288 help 1289 Hardware driver for the watchdog timer built into the Intel 1290 Atom E6XX (TunnelCreek) processor. 1291 1292 To compile this driver as a module, choose M here: the 1293 module will be called ie6xx_wdt. 1294 1295config INTEL_MID_WATCHDOG 1296 tristate "Intel MID Watchdog Timer" 1297 depends on X86_INTEL_MID 1298 select WATCHDOG_CORE 1299 help 1300 Watchdog timer driver built into the Intel SCU for Intel MID 1301 Platforms. 1302 1303 This driver currently supports only the watchdog evolution 1304 implementation in SCU, available for Merrifield generation. 1305 1306 To compile this driver as a module, choose M here. 1307 1308config ITCO_WDT 1309 tristate "Intel TCO Timer/Watchdog" 1310 depends on X86 && PCI 1311 select WATCHDOG_CORE 1312 depends on I2C || I2C=n 1313 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1314 select LPC_ICH if !EXPERT 1315 select I2C_I801 if !EXPERT && I2C 1316 help 1317 Hardware driver for the intel TCO timer based watchdog devices. 1318 These drivers are included in the Intel 82801 I/O Controller 1319 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1320 controller hub. 1321 1322 The TCO (Total Cost of Ownership) timer is a watchdog timer 1323 that will reboot the machine after its second expiration. The 1324 expiration time can be configured with the "heartbeat" parameter. 1325 1326 On some motherboards the driver may fail to reset the chipset's 1327 NO_REBOOT flag which prevents the watchdog from rebooting the 1328 machine. If this is the case you will get a kernel message like 1329 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1330 1331 To compile this driver as a module, choose M here: the 1332 module will be called iTCO_wdt. 1333 1334config ITCO_VENDOR_SUPPORT 1335 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1336 depends on ITCO_WDT 1337 help 1338 Add vendor specific support to the intel TCO timer based watchdog 1339 devices. At this moment we only have additional support for some 1340 SuperMicro Inc. motherboards. 1341 1342config IT8712F_WDT 1343 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1344 depends on X86 || COMPILE_TEST 1345 help 1346 This is the driver for the built-in watchdog timer on the IT8712F 1347 Super I/0 chipset used on many motherboards. 1348 1349 If the driver does not work, then make sure that the game port in 1350 the BIOS is enabled. 1351 1352 To compile this driver as a module, choose M here: the 1353 module will be called it8712f_wdt. 1354 1355config IT87_WDT 1356 tristate "IT87 Watchdog Timer" 1357 depends on X86 || COMPILE_TEST 1358 select WATCHDOG_CORE 1359 help 1360 This is the driver for the hardware watchdog on the ITE IT8607, 1361 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1362 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1363 IT8783 Super I/O chips. 1364 1365 This watchdog simply watches your kernel to make sure it doesn't 1366 freeze, and if it does, it reboots your computer after a certain 1367 amount of time. 1368 1369 To compile this driver as a module, choose M here: the module will 1370 be called it87_wdt. 1371 1372config HP_WATCHDOG 1373 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1374 select WATCHDOG_CORE 1375 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1376 help 1377 A software monitoring watchdog and NMI handling driver. This driver 1378 will detect lockups and provide a stack trace. This is a driver that 1379 will only load on an HP ProLiant system with a minimum of iLO2 support. 1380 To compile this driver as a module, choose M here: the module will be 1381 called hpwdt. 1382 1383config HPWDT_NMI_DECODING 1384 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1385 depends on X86 && HP_WATCHDOG 1386 default y 1387 help 1388 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1389 "Generate NMI to System" virtual button. When an NMI is claimed 1390 by the driver, panic is called. 1391 1392config KEMPLD_WDT 1393 tristate "Kontron COM Watchdog Timer" 1394 depends on MFD_KEMPLD 1395 select WATCHDOG_CORE 1396 help 1397 Support for the PLD watchdog on some Kontron ETX and COMexpress 1398 (ETXexpress) modules 1399 1400 This driver can also be built as a module. If so, the module will be 1401 called kempld_wdt. 1402 1403config SC1200_WDT 1404 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1405 depends on X86 || COMPILE_TEST 1406 help 1407 This is a driver for National Semiconductor PC87307/PC97307 hardware 1408 watchdog cards as found on the SC1200. This watchdog is mainly used 1409 for power management purposes and can be used to power down the device 1410 during inactivity periods (includes interrupt activity monitoring). 1411 1412 To compile this driver as a module, choose M here: the 1413 module will be called sc1200wdt. 1414 1415 Most people will say N. 1416 1417config SCx200_WDT 1418 tristate "National Semiconductor SCx200 Watchdog" 1419 depends on SCx200 && PCI 1420 help 1421 Enable the built-in watchdog timer support on the National 1422 Semiconductor SCx200 processors. 1423 1424 If compiled as a module, it will be called scx200_wdt. 1425 1426config PC87413_WDT 1427 tristate "NS PC87413 watchdog" 1428 depends on X86 || COMPILE_TEST 1429 help 1430 This is the driver for the hardware watchdog on the PC87413 chipset 1431 This watchdog simply watches your kernel to make sure it doesn't 1432 freeze, and if it does, it reboots your computer after a certain 1433 amount of time. 1434 1435 To compile this driver as a module, choose M here: the 1436 module will be called pc87413_wdt. 1437 1438 Most people will say N. 1439 1440config NV_TCO 1441 tristate "nVidia TCO Timer/Watchdog" 1442 depends on (X86 || COMPILE_TEST) && PCI 1443 help 1444 Hardware driver for the TCO timer built into the nVidia Hub family 1445 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1446 watchdog timer that will reboot the machine after its second 1447 expiration. The expiration time can be configured with the 1448 "heartbeat" parameter. 1449 1450 On some motherboards the driver may fail to reset the chipset's 1451 NO_REBOOT flag which prevents the watchdog from rebooting the 1452 machine. If this is the case you will get a kernel message like 1453 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1454 1455 To compile this driver as a module, choose M here: the 1456 module will be called nv_tco. 1457 1458config RDC321X_WDT 1459 tristate "RDC R-321x SoC watchdog" 1460 depends on X86_RDC321X || COMPILE_TEST 1461 depends on PCI 1462 help 1463 This is the driver for the built in hardware watchdog 1464 in the RDC R-321x SoC. 1465 1466 To compile this driver as a module, choose M here: the 1467 module will be called rdc321x_wdt. 1468 1469config 60XX_WDT 1470 tristate "SBC-60XX Watchdog Timer" 1471 depends on X86 || COMPILE_TEST 1472 help 1473 This driver can be used with the watchdog timer found on some 1474 single board computers, namely the 6010 PII based computer. 1475 It may well work with other cards. It reads port 0x443 to enable 1476 and re-set the watchdog timer, and reads port 0x45 to disable 1477 the watchdog. If you have a card that behave in similar ways, 1478 you can probably make this driver work with your card as well. 1479 1480 You can compile this driver directly into the kernel, or use 1481 it as a module. The module will be called sbc60xxwdt. 1482 1483config SBC8360_WDT 1484 tristate "SBC8360 Watchdog Timer" 1485 depends on X86_32 1486 help 1487 1488 This is the driver for the hardware watchdog on the SBC8360 Single 1489 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1490 1491 To compile this driver as a module, choose M here: the 1492 module will be called sbc8360. 1493 1494 Most people will say N. 1495 1496config SBC7240_WDT 1497 tristate "SBC Nano 7240 Watchdog Timer" 1498 depends on X86_32 && !UML 1499 help 1500 This is the driver for the hardware watchdog found on the IEI 1501 single board computers EPIC Nano 7240 (and likely others). This 1502 watchdog simply watches your kernel to make sure it doesn't freeze, 1503 and if it does, it reboots your computer after a certain amount of 1504 time. 1505 1506 To compile this driver as a module, choose M here: the 1507 module will be called sbc7240_wdt. 1508 1509config CPU5_WDT 1510 tristate "SMA CPU5 Watchdog" 1511 depends on X86 || COMPILE_TEST 1512 help 1513 TBD. 1514 To compile this driver as a module, choose M here: the 1515 module will be called cpu5wdt. 1516 1517config SMSC_SCH311X_WDT 1518 tristate "SMSC SCH311X Watchdog Timer" 1519 depends on X86 || COMPILE_TEST 1520 help 1521 This is the driver for the hardware watchdog timer on the 1522 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1523 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1524 serial ports). 1525 1526 To compile this driver as a module, choose M here: the 1527 module will be called sch311x_wdt. 1528 1529config SMSC37B787_WDT 1530 tristate "Winbond SMsC37B787 Watchdog Timer" 1531 depends on X86 || COMPILE_TEST 1532 help 1533 This is the driver for the hardware watchdog component on the 1534 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1535 from Vision Systems and maybe others. 1536 1537 This watchdog simply watches your kernel to make sure it doesn't 1538 freeze, and if it does, it reboots your computer after a certain 1539 amount of time. 1540 1541 Usually a userspace daemon will notify the kernel WDT driver that 1542 userspace is still alive, at regular intervals. 1543 1544 To compile this driver as a module, choose M here: the 1545 module will be called smsc37b787_wdt. 1546 1547 Most people will say N. 1548 1549config TQMX86_WDT 1550 tristate "TQ-Systems TQMX86 Watchdog Timer" 1551 depends on X86 || COMPILE_TEST 1552 select WATCHDOG_CORE 1553 help 1554 This is the driver for the hardware watchdog timer in the TQMX86 IO 1555 controller found on some of their ComExpress Modules. 1556 1557 To compile this driver as a module, choose M here; the module 1558 will be called tqmx86_wdt. 1559 1560 Most people will say N. 1561 1562config VIA_WDT 1563 tristate "VIA Watchdog Timer" 1564 depends on (X86 || COMPILE_TEST) && PCI 1565 select WATCHDOG_CORE 1566 help 1567 This is the driver for the hardware watchdog timer on VIA 1568 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1569 1570 To compile this driver as a module, choose M here; the module 1571 will be called via_wdt. 1572 1573 Most people will say N. 1574 1575config W83627HF_WDT 1576 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1577 depends on X86 || COMPILE_TEST 1578 select WATCHDOG_CORE 1579 help 1580 This is the driver for the hardware watchdog on the following 1581 Super I/O chips. 1582 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1583 W83637HF 1584 W83667HG/HG-B 1585 W83687THF 1586 W83697HF 1587 W83697UG 1588 NCT6775 1589 NCT6776 1590 NCT6779 1591 NCT6791 1592 NCT6792 1593 NCT6102D/04D/06D 1594 NCT6116D 1595 1596 This watchdog simply watches your kernel to make sure it doesn't 1597 freeze, and if it does, it reboots your computer after a certain 1598 amount of time. 1599 1600 To compile this driver as a module, choose M here: the 1601 module will be called w83627hf_wdt. 1602 1603 Most people will say N. 1604 1605config W83877F_WDT 1606 tristate "W83877F (EMACS) Watchdog Timer" 1607 depends on X86 || COMPILE_TEST 1608 help 1609 This is the driver for the hardware watchdog on the W83877F chipset 1610 as used in EMACS PC-104 motherboards (and likely others). This 1611 watchdog simply watches your kernel to make sure it doesn't freeze, 1612 and if it does, it reboots your computer after a certain amount of 1613 time. 1614 1615 To compile this driver as a module, choose M here: the 1616 module will be called w83877f_wdt. 1617 1618 Most people will say N. 1619 1620config W83977F_WDT 1621 tristate "W83977F (PCM-5335) Watchdog Timer" 1622 depends on X86 || COMPILE_TEST 1623 help 1624 This is the driver for the hardware watchdog on the W83977F I/O chip 1625 as used in AAEON's PCM-5335 SBC (and likely others). This 1626 watchdog simply watches your kernel to make sure it doesn't freeze, 1627 and if it does, it reboots your computer after a certain amount of 1628 time. 1629 1630 To compile this driver as a module, choose M here: the 1631 module will be called w83977f_wdt. 1632 1633config MACHZ_WDT 1634 tristate "ZF MachZ Watchdog" 1635 depends on X86 || COMPILE_TEST 1636 help 1637 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1638 N. This is the driver for the watchdog timer built-in on that 1639 processor using ZF-Logic interface. This watchdog simply watches 1640 your kernel to make sure it doesn't freeze, and if it does, it 1641 reboots your computer after a certain amount of time. 1642 1643 To compile this driver as a module, choose M here: the 1644 module will be called machzwd. 1645 1646config SBC_EPX_C3_WATCHDOG 1647 tristate "Winsystems SBC EPX-C3 watchdog" 1648 depends on X86 || COMPILE_TEST 1649 help 1650 This is the driver for the built-in watchdog timer on the EPX-C3 1651 Single-board computer made by Winsystems, Inc. 1652 1653 *Note*: This hardware watchdog is not probeable and thus there 1654 is no way to know if writing to its IO address will corrupt 1655 your system or have any real effect. The only way to be sure 1656 that this driver does what you want is to make sure you 1657 are running it on an EPX-C3 from Winsystems with the watchdog 1658 timer at IO address 0x1ee and 0x1ef. It will write to both those 1659 IO ports. Basically, the assumption is made that if you compile 1660 this driver into your kernel and/or load it as a module, that you 1661 know what you are doing and that you are in fact running on an 1662 EPX-C3 board! 1663 1664 To compile this driver as a module, choose M here: the 1665 module will be called sbc_epx_c3. 1666 1667config INTEL_MEI_WDT 1668 tristate "Intel MEI iAMT Watchdog" 1669 depends on INTEL_MEI && X86 1670 select WATCHDOG_CORE 1671 help 1672 A device driver for the Intel MEI iAMT watchdog. 1673 1674 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1675 Whenever the OS hangs or crashes, iAMT will send an event 1676 to any subscriber to this event. The watchdog doesn't reset the 1677 the platform. 1678 1679 To compile this driver as a module, choose M here: 1680 the module will be called mei_wdt. 1681 1682config NI903X_WDT 1683 tristate "NI 903x/913x Watchdog" 1684 depends on X86 && ACPI 1685 select WATCHDOG_CORE 1686 help 1687 This is the driver for the watchdog timer on the National Instruments 1688 903x/913x real-time controllers. 1689 1690 To compile this driver as a module, choose M here: the module will be 1691 called ni903x_wdt. 1692 1693config NIC7018_WDT 1694 tristate "NIC7018 Watchdog" 1695 depends on X86 && ACPI 1696 select WATCHDOG_CORE 1697 help 1698 Support for National Instruments NIC7018 Watchdog. 1699 1700 To compile this driver as a module, choose M here: the module will be 1701 called nic7018_wdt. 1702 1703config SIEMENS_SIMATIC_IPC_WDT 1704 tristate "Siemens Simatic IPC Watchdog" 1705 depends on SIEMENS_SIMATIC_IPC && PCI 1706 default y 1707 select WATCHDOG_CORE 1708 select P2SB if X86 1709 help 1710 This driver adds support for several watchdogs found in Industrial 1711 PCs from Siemens. 1712 1713 To compile this driver as a module, choose M here: the module will be 1714 called simatic-ipc-wdt. 1715 1716# M68K Architecture 1717 1718config M54xx_WATCHDOG 1719 tristate "MCF54xx watchdog support" 1720 depends on M548x 1721 help 1722 To compile this driver as a module, choose M here: the 1723 module will be called m54xx_wdt. 1724 1725# MicroBlaze Architecture 1726 1727# MIPS Architecture 1728 1729config ATH79_WDT 1730 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1731 depends on ATH79 || (ARM && COMPILE_TEST) 1732 help 1733 Hardware driver for the built-in watchdog timer on the Atheros 1734 AR71XX/AR724X/AR913X SoCs. 1735 1736config BCM47XX_WDT 1737 tristate "Broadcom BCM47xx Watchdog Timer" 1738 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1739 select WATCHDOG_CORE 1740 help 1741 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1742 1743config RC32434_WDT 1744 tristate "IDT RC32434 SoC Watchdog Timer" 1745 depends on MIKROTIK_RB532 1746 help 1747 Hardware driver for the IDT RC32434 SoC built-in 1748 watchdog timer. 1749 1750 To compile this driver as a module, choose M here: the 1751 module will be called rc32434_wdt. 1752 1753config INDYDOG 1754 tristate "Indy/I2 Hardware Watchdog" 1755 depends on SGI_HAS_INDYDOG 1756 help 1757 Hardware driver for the Indy's/I2's watchdog. This is a 1758 watchdog timer that will reboot the machine after a 60 second 1759 timer expired and no process has written to /dev/watchdog during 1760 that time. 1761 1762config JZ4740_WDT 1763 tristate "Ingenic jz4740 SoC hardware watchdog" 1764 depends on MIPS || COMPILE_TEST 1765 depends on COMMON_CLK 1766 select WATCHDOG_CORE 1767 select MFD_SYSCON 1768 help 1769 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1770 1771config WDT_MTX1 1772 tristate "MTX-1 Hardware Watchdog" 1773 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1774 help 1775 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1776 will reboot the machine after a 100 seconds timer expired. 1777 1778config SIBYTE_WDOG 1779 tristate "Sibyte SoC hardware watchdog" 1780 depends on CPU_SB1 1781 help 1782 Watchdog driver for the built in watchdog hardware in Sibyte 1783 SoC processors. There are apparently two watchdog timers 1784 on such processors; this driver supports only the first one, 1785 because currently Linux only supports exporting one watchdog 1786 to userspace. 1787 1788 To compile this driver as a loadable module, choose M here. 1789 The module will be called sb_wdog. 1790 1791config TXX9_WDT 1792 tristate "Toshiba TXx9 Watchdog Timer" 1793 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1794 select WATCHDOG_CORE 1795 help 1796 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1797 1798config OCTEON_WDT 1799 tristate "Cavium OCTEON SOC family Watchdog Timer" 1800 depends on CAVIUM_OCTEON_SOC 1801 default y 1802 select WATCHDOG_CORE 1803 select EXPORT_UASM if OCTEON_WDT = m 1804 help 1805 Hardware driver for OCTEON's on chip watchdog timer. 1806 Enables the watchdog for all cores running Linux. It 1807 installs a NMI handler and pokes the watchdog based on an 1808 interrupt. On first expiration of the watchdog, the 1809 interrupt handler pokes it. The second expiration causes an 1810 NMI that prints a message. The third expiration causes a 1811 global soft reset. 1812 1813 When userspace has /dev/watchdog open, no poking is done 1814 from the first interrupt, it is then only poked when the 1815 device is written. 1816 1817config MARVELL_GTI_WDT 1818 tristate "Marvell GTI Watchdog driver" 1819 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1820 default y 1821 select WATCHDOG_CORE 1822 help 1823 Marvell GTI hardware supports watchdog timer. First timeout 1824 works as watchdog pretimeout and installed interrupt handler 1825 will be called on first timeout. Hardware can generate interrupt 1826 to SCP on second timeout but it is not enabled, so second 1827 timeout is ignored. If device poke does not happen then system 1828 will reboot on third timeout. 1829 1830config BCM2835_WDT 1831 tristate "Broadcom BCM2835 hardware watchdog" 1832 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1833 select WATCHDOG_CORE 1834 help 1835 Watchdog driver for the built in watchdog hardware in Broadcom 1836 BCM2835 SoC. 1837 1838 To compile this driver as a loadable module, choose M here. 1839 The module will be called bcm2835_wdt. 1840 1841config BCM_KONA_WDT 1842 tristate "BCM Kona Watchdog" 1843 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1844 select WATCHDOG_CORE 1845 help 1846 Support for the watchdog timer on the following Broadcom BCM281xx 1847 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1848 BCM28155 variants. 1849 1850 Say 'Y' or 'M' here to enable the driver. The module will be called 1851 bcm_kona_wdt. 1852 1853config BCM_KONA_WDT_DEBUG 1854 bool "DEBUGFS support for BCM Kona Watchdog" 1855 depends on BCM_KONA_WDT || COMPILE_TEST 1856 help 1857 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1858 access to the driver's internal data structures as well as watchdog 1859 timer hardware registres. 1860 1861 If in doubt, say 'N'. 1862 1863config BCM7038_WDT 1864 tristate "BCM63xx/BCM7038 Watchdog" 1865 select WATCHDOG_CORE 1866 depends on HAS_IOMEM 1867 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1868 help 1869 Watchdog driver for the built-in hardware in Broadcom 7038 and 1870 later SoCs used in set-top boxes. BCM7038 was made public 1871 during the 2004 CES, and since then, many Broadcom chips use this 1872 watchdog block, including some cable modem chips and DSL (63xx) 1873 chips. 1874 1875config IMGPDC_WDT 1876 tristate "Imagination Technologies PDC Watchdog Timer" 1877 depends on HAS_IOMEM 1878 depends on MIPS || COMPILE_TEST 1879 select WATCHDOG_CORE 1880 help 1881 Driver for Imagination Technologies PowerDown Controller 1882 Watchdog Timer. 1883 1884 To compile this driver as a loadable module, choose M here. 1885 The module will be called imgpdc_wdt. 1886 1887config LANTIQ_WDT 1888 tristate "Lantiq SoC watchdog" 1889 depends on LANTIQ 1890 select WATCHDOG_CORE 1891 help 1892 Hardware driver for the Lantiq SoC Watchdog Timer. 1893 1894config LOONGSON1_WDT 1895 tristate "Loongson1 SoC hardware watchdog" 1896 depends on MACH_LOONGSON32 || COMPILE_TEST 1897 select WATCHDOG_CORE 1898 help 1899 Hardware driver for the Loongson1 SoC Watchdog Timer. 1900 1901config RALINK_WDT 1902 tristate "Ralink SoC watchdog" 1903 select WATCHDOG_CORE 1904 depends on RALINK 1905 help 1906 Hardware driver for the Ralink SoC Watchdog Timer. 1907 1908config GXP_WATCHDOG 1909 tristate "HPE GXP watchdog support" 1910 depends on ARCH_HPE_GXP || COMPILE_TEST 1911 select WATCHDOG_CORE 1912 help 1913 Say Y here to include support for the watchdog timer 1914 in HPE GXP SoCs. 1915 1916 To compile this driver as a module, choose M here. 1917 The module will be called gxp-wdt. 1918 1919config MT7621_WDT 1920 tristate "Mediatek SoC watchdog" 1921 select WATCHDOG_CORE 1922 select REGMAP_MMIO 1923 select MFD_SYSCON 1924 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1925 help 1926 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1927 1928config PIC32_WDT 1929 tristate "Microchip PIC32 hardware watchdog" 1930 select WATCHDOG_CORE 1931 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1932 help 1933 Watchdog driver for the built in watchdog hardware in a PIC32. 1934 1935 Configuration bits must be set appropriately for the watchdog to be 1936 controlled by this driver. 1937 1938 To compile this driver as a loadable module, choose M here. 1939 The module will be called pic32-wdt. 1940 1941config PIC32_DMT 1942 tristate "Microchip PIC32 Deadman Timer" 1943 select WATCHDOG_CORE 1944 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1945 help 1946 Watchdog driver for PIC32 instruction fetch counting timer. This 1947 specific timer is typically be used in mission critical and safety 1948 critical applications, where any single failure of the software 1949 functionality and sequencing must be detected. 1950 1951 To compile this driver as a loadable module, choose M here. 1952 The module will be called pic32-dmt. 1953 1954# PARISC Architecture 1955 1956# POWERPC Architecture 1957 1958config GEF_WDT 1959 tristate "GE Watchdog Timer" 1960 depends on GE_FPGA 1961 help 1962 Watchdog timer found in a number of GE single board computers. 1963 1964config MPC5200_WDT 1965 bool "MPC52xx Watchdog Timer" 1966 depends on PPC_MPC52xx || COMPILE_TEST 1967 help 1968 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1969 1970config 8xxx_WDT 1971 tristate "MPC8xxx Platform Watchdog Timer" 1972 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1973 select WATCHDOG_CORE 1974 help 1975 This driver is for a SoC level watchdog that exists on some 1976 Freescale PowerPC processors. So far this driver supports: 1977 - MPC8xx watchdogs 1978 - MPC83xx watchdogs 1979 - MPC86xx watchdogs 1980 1981 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1982 1983config PIKA_WDT 1984 tristate "PIKA FPGA Watchdog" 1985 depends on WARP || (PPC64 && COMPILE_TEST) 1986 default y 1987 help 1988 This enables the watchdog in the PIKA FPGA. Currently used on 1989 the Warp platform. 1990 1991config BOOKE_WDT 1992 tristate "PowerPC Book-E Watchdog Timer" 1993 depends on BOOKE || 4xx 1994 select WATCHDOG_CORE 1995 help 1996 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1997 MPC85xx SOCs and the IBM PowerPC 440. 1998 1999 Please see Documentation/watchdog/watchdog-api.rst for 2000 more information. 2001 2002config BOOKE_WDT_DEFAULT_TIMEOUT 2003 int "PowerPC Book-E Watchdog Timer Default Timeout" 2004 depends on BOOKE_WDT 2005 default 38 if PPC_E500 2006 range 0 63 if PPC_E500 2007 default 3 if !PPC_E500 2008 range 0 3 if !PPC_E500 2009 help 2010 Select the default watchdog timer period to be used by the PowerPC 2011 Book-E watchdog driver. A watchdog "event" occurs when the bit 2012 position represented by this number transitions from zero to one. 2013 2014 For Freescale Book-E processors, this is a number between 0 and 63. 2015 For other Book-E processors, this is a number between 0 and 3. 2016 2017 The value can be overridden by the wdt_period command-line parameter. 2018 2019config MEN_A21_WDT 2020 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2021 select WATCHDOG_CORE 2022 depends on GPIOLIB || COMPILE_TEST 2023 help 2024 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2025 2026 The driver can also be built as a module. If so, the module will be 2027 called mena21_wdt. 2028 2029 If unsure select N here. 2030 2031# PPC64 Architecture 2032 2033config PSERIES_WDT 2034 tristate "POWER Architecture Platform Watchdog Timer" 2035 depends on PPC_PSERIES 2036 select WATCHDOG_CORE 2037 help 2038 Driver for virtual watchdog timers provided by PAPR 2039 hypervisors (e.g. PowerVM, KVM). 2040 2041config WATCHDOG_RTAS 2042 tristate "RTAS watchdog" 2043 depends on PPC_RTAS 2044 help 2045 This driver adds watchdog support for the RTAS watchdog. 2046 2047 To compile this driver as a module, choose M here. The module 2048 will be called wdrtas. 2049 2050# RISC-V Architecture 2051 2052config STARFIVE_WATCHDOG 2053 tristate "StarFive Watchdog support" 2054 depends on ARCH_STARFIVE || COMPILE_TEST 2055 select WATCHDOG_CORE 2056 default ARCH_STARFIVE 2057 help 2058 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2059 SoC. This driver can also be built as a module if choose M. 2060 2061# S390 Architecture 2062 2063config DIAG288_WATCHDOG 2064 tristate "System z diag288 Watchdog" 2065 depends on S390 2066 select WATCHDOG_CORE 2067 help 2068 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2069 provide a virtual watchdog timer to their guest that cause a 2070 user define Control Program command to be executed after a 2071 timeout. 2072 LPAR provides a very similar interface. This driver handles 2073 both. 2074 2075 To compile this driver as a module, choose M here. The module 2076 will be called diag288_wdt. 2077 2078# SUPERH (sh + sh64) Architecture 2079 2080config SH_WDT 2081 tristate "SuperH Watchdog" 2082 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2083 select WATCHDOG_CORE 2084 help 2085 This driver adds watchdog support for the integrated watchdog in the 2086 SuperH processors. If you have one of these processors and wish 2087 to have watchdog support enabled, say Y, otherwise say N. 2088 2089 As a side note, saying Y here will automatically boost HZ to 1000 2090 so that the timer has a chance to clear the overflow counter. On 2091 slower systems (such as the SH-2 and SH-3) this will likely yield 2092 some performance issues. As such, the WDT should be avoided here 2093 unless it is absolutely necessary. 2094 2095 To compile this driver as a module, choose M here: the 2096 module will be called shwdt. 2097 2098# SPARC Architecture 2099 2100# SPARC64 Architecture 2101 2102config WATCHDOG_CP1XXX 2103 tristate "CP1XXX Hardware Watchdog support" 2104 depends on SPARC64 && PCI 2105 help 2106 This is the driver for the hardware watchdog timers present on 2107 Sun Microsystems CompactPCI models CP1400 and CP1500. 2108 2109 To compile this driver as a module, choose M here: the 2110 module will be called cpwatchdog. 2111 2112 If you do not have a CompactPCI model CP1400 or CP1500, or 2113 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2114 you should say N to this option. 2115 2116config WATCHDOG_RIO 2117 tristate "RIO Hardware Watchdog support" 2118 depends on SPARC64 && PCI 2119 help 2120 Say Y here to support the hardware watchdog capability on Sun RIO 2121 machines. The watchdog timeout period is normally one minute but 2122 can be changed with a boot-time parameter. 2123 2124config WATCHDOG_SUN4V 2125 tristate "Sun4v Watchdog support" 2126 select WATCHDOG_CORE 2127 depends on SPARC64 2128 help 2129 Say Y here to support the hypervisor watchdog capability embedded 2130 in the SPARC sun4v architecture. 2131 2132 To compile this driver as a module, choose M here. The module will 2133 be called sun4v_wdt. 2134 2135# XTENSA Architecture 2136 2137# Xen Architecture 2138 2139config XEN_WDT 2140 tristate "Xen Watchdog support" 2141 depends on XEN 2142 select WATCHDOG_CORE 2143 help 2144 Say Y here to support the hypervisor watchdog capability provided 2145 by Xen 4.0 and newer. The watchdog timeout period is normally one 2146 minute but can be changed with a boot-time parameter. 2147 2148config UML_WATCHDOG 2149 tristate "UML watchdog" 2150 depends on UML || COMPILE_TEST 2151 2152# 2153# ISA-based Watchdog Cards 2154# 2155 2156comment "ISA-based Watchdog Cards" 2157 depends on ISA 2158 2159config PCWATCHDOG 2160 tristate "Berkshire Products ISA-PC Watchdog" 2161 depends on ISA 2162 help 2163 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2164 This card simply watches your kernel to make sure it doesn't freeze, 2165 and if it does, it reboots your computer after a certain amount of 2166 time. This driver is like the WDT501 driver but for different 2167 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2168 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2169 2170 To compile this driver as a module, choose M here: the 2171 module will be called pcwd. 2172 2173 Most people will say N. 2174 2175config MIXCOMWD 2176 tristate "Mixcom Watchdog" 2177 depends on ISA 2178 help 2179 This is a driver for the Mixcom hardware watchdog cards. This 2180 watchdog simply watches your kernel to make sure it doesn't freeze, 2181 and if it does, it reboots your computer after a certain amount of 2182 time. 2183 2184 To compile this driver as a module, choose M here: the 2185 module will be called mixcomwd. 2186 2187 Most people will say N. 2188 2189config WDT 2190 tristate "WDT Watchdog timer" 2191 depends on ISA 2192 help 2193 If you have a WDT500P or WDT501P watchdog board, say Y here, 2194 otherwise N. It is not possible to probe for this board, which means 2195 that you have to inform the kernel about the IO port and IRQ that 2196 is needed (you can do this via the io and irq parameters) 2197 2198 To compile this driver as a module, choose M here: the 2199 module will be called wdt. 2200 2201# 2202# PCI-based Watchdog Cards 2203# 2204 2205comment "PCI-based Watchdog Cards" 2206 depends on PCI 2207 2208config PCIPCWATCHDOG 2209 tristate "Berkshire Products PCI-PC Watchdog" 2210 depends on PCI 2211 help 2212 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2213 This card simply watches your kernel to make sure it doesn't freeze, 2214 and if it does, it reboots your computer after a certain amount of 2215 time. The card can also monitor the internal temperature of the PC. 2216 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2217 2218 To compile this driver as a module, choose M here: the 2219 module will be called pcwd_pci. 2220 2221 Most people will say N. 2222 2223config WDTPCI 2224 tristate "PCI-WDT500/501 Watchdog timer" 2225 depends on PCI 2226 help 2227 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2228 2229 If you have a PCI-WDT501 watchdog board then you can enable the 2230 temperature sensor by setting the type parameter to 501. 2231 2232 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2233 can do this via the tachometer parameter. Only do this if you have a 2234 fan tachometer actually set up. 2235 2236 To compile this driver as a module, choose M here: the 2237 module will be called wdt_pci. 2238 2239# 2240# USB-based Watchdog Cards 2241# 2242 2243comment "USB-based Watchdog Cards" 2244 depends on USB 2245 2246config USBPCWATCHDOG 2247 tristate "Berkshire Products USB-PC Watchdog" 2248 depends on USB 2249 help 2250 This is the driver for the Berkshire Products USB-PC Watchdog card. 2251 This card simply watches your kernel to make sure it doesn't freeze, 2252 and if it does, it reboots your computer after a certain amount of 2253 time. The card can also monitor the internal temperature of the PC. 2254 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2255 2256 To compile this driver as a module, choose M here: the 2257 module will be called pcwd_usb. 2258 2259 Most people will say N. 2260 2261config KEEMBAY_WATCHDOG 2262 tristate "Intel Keem Bay SoC non-secure watchdog" 2263 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2264 select WATCHDOG_CORE 2265 help 2266 This option enable support for an In-secure watchdog timer driver for 2267 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2268 count unit. An interrupt will be triggered, when the count crosses 2269 the threshold configured in the register. 2270 2271 To compile this driver as a module, choose M here: the 2272 module will be called keembay_wdt. 2273 2274endif # WATCHDOG 2275