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 DA9052_WATCHDOG 185 tristate "Dialog DA9052 Watchdog" 186 depends on PMIC_DA9052 || COMPILE_TEST 187 select WATCHDOG_CORE 188 help 189 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 190 cause system reset. 191 192 Say Y here to include support for the DA9052 watchdog. 193 Alternatively say M to compile the driver as a module, 194 which will be called da9052_wdt. 195 196config DA9055_WATCHDOG 197 tristate "Dialog Semiconductor DA9055 Watchdog" 198 depends on MFD_DA9055 || COMPILE_TEST 199 select WATCHDOG_CORE 200 help 201 If you say yes here you get support for watchdog on the Dialog 202 Semiconductor DA9055 PMIC. 203 204 This driver can also be built as a module. If so, the module 205 will be called da9055_wdt. 206 207config DA9063_WATCHDOG 208 tristate "Dialog DA9063 Watchdog" 209 depends on MFD_DA9063 || COMPILE_TEST 210 select WATCHDOG_CORE 211 help 212 Support for the watchdog in the DA9063 PMIC. 213 214 This driver can be built as a module. The module name is da9063_wdt. 215 216config DA9062_WATCHDOG 217 tristate "Dialog DA9062/61 Watchdog" 218 depends on MFD_DA9062 || COMPILE_TEST 219 depends on I2C 220 select WATCHDOG_CORE 221 help 222 Support for the watchdog in the DA9062 and DA9061 PMICs. 223 224 This driver can be built as a module. The module name is da9062_wdt. 225 226config GPIO_WATCHDOG 227 tristate "Watchdog device controlled through GPIO-line" 228 depends on OF_GPIO 229 select WATCHDOG_CORE 230 help 231 If you say yes here you get support for watchdog device 232 controlled through GPIO-line. 233 234config GPIO_WATCHDOG_ARCH_INITCALL 235 bool "Register the watchdog as early as possible" 236 depends on GPIO_WATCHDOG=y 237 help 238 In some situations, the default initcall level (module_init) 239 in not early enough in the boot process to avoid the watchdog 240 to be triggered. 241 If you say yes here, the initcall level would be raised to 242 arch_initcall. 243 If in doubt, say N. 244 245config MENF21BMC_WATCHDOG 246 tristate "MEN 14F021P00 BMC Watchdog" 247 depends on MFD_MENF21BMC || COMPILE_TEST 248 depends on I2C 249 select WATCHDOG_CORE 250 help 251 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 252 253 This driver can also be built as a module. If so the module 254 will be called menf21bmc_wdt. 255 256config MENZ069_WATCHDOG 257 tristate "MEN 16Z069 Watchdog" 258 depends on MCB 259 select WATCHDOG_CORE 260 help 261 Say Y here to include support for the MEN 16Z069 Watchdog. 262 263 This driver can also be built as a module. If so the module 264 will be called menz069_wdt. 265 266config WDAT_WDT 267 tristate "ACPI Watchdog Action Table (WDAT)" 268 depends on ACPI 269 select WATCHDOG_CORE 270 select ACPI_WATCHDOG 271 help 272 This driver adds support for systems with ACPI Watchdog Action 273 Table (WDAT) table. Servers typically have this but it can be 274 found on some desktop machines as well. This driver will take 275 over the native iTCO watchdog driver found on many Intel CPUs. 276 277 To compile this driver as module, choose M here: the module will 278 be called wdat_wdt. 279 280config WM831X_WATCHDOG 281 tristate "WM831x watchdog" 282 depends on MFD_WM831X 283 select WATCHDOG_CORE 284 help 285 Support for the watchdog in the WM831x AudioPlus PMICs. When 286 the watchdog triggers the system will be reset. 287 288config WM8350_WATCHDOG 289 tristate "WM8350 watchdog" 290 depends on MFD_WM8350 291 select WATCHDOG_CORE 292 help 293 Support for the watchdog in the WM8350 AudioPlus PMIC. When 294 the watchdog triggers the system will be reset. 295 296config XILINX_WATCHDOG 297 tristate "Xilinx Watchdog timer" 298 depends on HAS_IOMEM 299 select WATCHDOG_CORE 300 help 301 Watchdog driver for the xps_timebase_wdt IP core. 302 303 To compile this driver as a module, choose M here: the 304 module will be called of_xilinx_wdt. 305 306config ZIIRAVE_WATCHDOG 307 tristate "Zodiac RAVE Watchdog Timer" 308 depends on I2C 309 select WATCHDOG_CORE 310 help 311 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 312 Processor. 313 314 To compile this driver as a module, choose M here: the 315 module will be called ziirave_wdt. 316 317config RAVE_SP_WATCHDOG 318 tristate "RAVE SP Watchdog timer" 319 depends on RAVE_SP_CORE 320 depends on NVMEM || !NVMEM 321 select WATCHDOG_CORE 322 help 323 Support for the watchdog on RAVE SP device. 324 325config MLX_WDT 326 tristate "Mellanox Watchdog" 327 depends on MELLANOX_PLATFORM 328 select WATCHDOG_CORE 329 select REGMAP 330 help 331 This is the driver for the hardware watchdog on Mellanox systems. 332 If you are going to use it, say Y here, otherwise N. 333 This driver can be used together with the watchdog daemon. 334 It can also watch your kernel to make sure it doesn't freeze, 335 and if it does, it reboots your system after a certain amount of 336 time. 337 338 To compile this driver as a module, choose M here: the 339 module will be called mlx-wdt. 340 341config SL28CPLD_WATCHDOG 342 tristate "Kontron sl28cpld Watchdog" 343 depends on MFD_SL28CPLD || COMPILE_TEST 344 select WATCHDOG_CORE 345 help 346 Say Y here to include support for the watchdog timer 347 on the Kontron sl28 CPLD. 348 349 To compile this driver as a module, choose M here: the 350 module will be called sl28cpld_wdt. 351 352# ALPHA Architecture 353 354# ARM Architecture 355 356config ARM_SP805_WATCHDOG 357 tristate "ARM SP805 Watchdog" 358 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 359 select WATCHDOG_CORE 360 help 361 ARM Primecell SP805 Watchdog timer. This will reboot your system when 362 the timeout is reached. 363 364config ARM_SBSA_WATCHDOG 365 tristate "ARM SBSA Generic Watchdog" 366 depends on ARM64 367 depends on ARM_ARCH_TIMER 368 select WATCHDOG_CORE 369 help 370 ARM SBSA Generic Watchdog has two stage timeouts: 371 the first signal (WS0) is for alerting the system by interrupt, 372 the second one (WS1) is a real hardware reset. 373 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 374 375 This driver can operate ARM SBSA Generic Watchdog as a single stage 376 or a two stages watchdog, it depends on the module parameter "action". 377 378 Note: the maximum timeout in the two stages mode is half of that in 379 the single stage mode. 380 381 To compile this driver as module, choose M here: The module 382 will be called sbsa_gwdt. 383 384config ARMADA_37XX_WATCHDOG 385 tristate "Armada 37xx watchdog" 386 depends on ARCH_MVEBU || COMPILE_TEST 387 depends on HAS_IOMEM 388 select MFD_SYSCON 389 select WATCHDOG_CORE 390 help 391 Say Y here to include support for the watchdog timer found on 392 Marvell Armada 37xx SoCs. 393 To compile this driver as a module, choose M here: the 394 module will be called armada_37xx_wdt. 395 396config ASM9260_WATCHDOG 397 tristate "Alphascale ASM9260 watchdog" 398 depends on MACH_ASM9260 || COMPILE_TEST 399 depends on OF 400 select WATCHDOG_CORE 401 select RESET_CONTROLLER 402 help 403 Watchdog timer embedded into Alphascale asm9260 chips. This will 404 reboot your system when the timeout is reached. 405 406config AT91RM9200_WATCHDOG 407 tristate "AT91RM9200 watchdog" 408 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 409 help 410 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 411 system when the timeout is reached. 412 413config AT91SAM9X_WATCHDOG 414 tristate "AT91SAM9X / AT91CAP9 watchdog" 415 depends on ARCH_AT91 || COMPILE_TEST 416 select WATCHDOG_CORE 417 help 418 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 419 reboot your system when the timeout is reached. 420 421config SAMA5D4_WATCHDOG 422 tristate "Atmel SAMA5D4 Watchdog Timer" 423 depends on ARCH_AT91 || COMPILE_TEST 424 select WATCHDOG_CORE 425 help 426 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 427 Its Watchdog Timer Mode Register can be written more than once. 428 This will reboot your system when the timeout is reached. 429 430config CADENCE_WATCHDOG 431 tristate "Cadence Watchdog Timer" 432 depends on HAS_IOMEM 433 select WATCHDOG_CORE 434 help 435 Say Y here if you want to include support for the watchdog 436 timer in the Xilinx Zynq. 437 438config 21285_WATCHDOG 439 tristate "DC21285 watchdog" 440 depends on FOOTBRIDGE 441 help 442 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 443 here if you wish to use this. Alternatively say M to compile the 444 driver as a module, which will be called wdt285. 445 446 This driver does not work on all machines. In particular, early CATS 447 boards have hardware problems that will cause the machine to simply 448 lock up if the watchdog fires. 449 450 "If in doubt, leave it out" - say N. 451 452config 977_WATCHDOG 453 tristate "NetWinder WB83C977 watchdog" 454 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 455 help 456 Say Y here to include support for the WB977 watchdog included in 457 NetWinder machines. Alternatively say M to compile the driver as 458 a module, which will be called wdt977. 459 460 Not sure? It's safe to say N. 461 462config FTWDT010_WATCHDOG 463 tristate "Faraday Technology FTWDT010 watchdog" 464 depends on ARM || COMPILE_TEST 465 select WATCHDOG_CORE 466 default ARCH_GEMINI 467 help 468 Say Y here if to include support for the Faraday Technology 469 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 470 family of devices. 471 472 To compile this driver as a module, choose M here: the 473 module will be called ftwdt010_wdt. 474 475config IXP4XX_WATCHDOG 476 tristate "IXP4xx Watchdog" 477 depends on ARCH_IXP4XX 478 select WATCHDOG_CORE 479 help 480 Say Y here if to include support for the watchdog timer 481 in the Intel IXP4xx network processors. This driver can 482 be built as a module by choosing M. The module will 483 be called ixp4xx_wdt. 484 485 Note: The internal IXP4xx watchdog does a soft CPU reset 486 which doesn't reset any peripherals. There are circumstances 487 where the watchdog will fail to reset the board correctly 488 (e.g., if the boot ROM is in an unreadable state). 489 490 Say N if you are unsure. 491 492config S3C2410_WATCHDOG 493 tristate "S3C2410 Watchdog" 494 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \ 495 COMPILE_TEST 496 select WATCHDOG_CORE 497 select MFD_SYSCON if ARCH_EXYNOS 498 help 499 Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and 500 Exynos SoCs. This will reboot the system when the timer expires with 501 the watchdog enabled. 502 503 The driver is limited by the speed of the system's PCLK 504 signal, so with reasonably fast systems (PCLK around 50-66MHz) 505 then watchdog intervals of over approximately 20seconds are 506 unavailable. 507 508 Choose Y/M here only if you build for such Samsung SoC. 509 The driver can be built as a module by choosing M, and will 510 be called s3c2410_wdt. 511 512config SA1100_WATCHDOG 513 tristate "SA1100/PXA2xx watchdog" 514 depends on ARCH_SA1100 || ARCH_PXA 515 help 516 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 517 reboot your system when timeout is reached. 518 519 NOTE: once enabled, this timer cannot be disabled. 520 521 To compile this driver as a module, choose M here: the 522 module will be called sa1100_wdt. 523 524config DW_WATCHDOG 525 tristate "Synopsys DesignWare watchdog" 526 depends on HAS_IOMEM 527 select WATCHDOG_CORE 528 help 529 Say Y here if to include support for the Synopsys DesignWare 530 watchdog timer found in many chips. 531 To compile this driver as a module, choose M here: the 532 module will be called dw_wdt. 533 534config EP93XX_WATCHDOG 535 tristate "EP93xx Watchdog" 536 depends on ARCH_EP93XX || COMPILE_TEST 537 select WATCHDOG_CORE 538 help 539 Say Y here if to include support for the watchdog timer 540 embedded in the Cirrus Logic EP93xx family of devices. 541 542 To compile this driver as a module, choose M here: the 543 module will be called ep93xx_wdt. 544 545config OMAP_WATCHDOG 546 tristate "OMAP Watchdog" 547 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 548 select WATCHDOG_CORE 549 help 550 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 551 Say 'Y' here to enable the 552 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 553 554config PNX4008_WATCHDOG 555 tristate "LPC32XX Watchdog" 556 depends on ARCH_LPC32XX || COMPILE_TEST 557 select WATCHDOG_CORE 558 help 559 Say Y here if to include support for the watchdog timer 560 in the LPC32XX processor. 561 This driver can be built as a module by choosing M. The module 562 will be called pnx4008_wdt. 563 564 Say N if you are unsure. 565 566config DAVINCI_WATCHDOG 567 tristate "DaVinci watchdog" 568 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 569 select WATCHDOG_CORE 570 help 571 Say Y here if to include support for the watchdog timer 572 in the DaVinci DM644x/DM646x or Keystone processors. 573 To compile this driver as a module, choose M here: the 574 module will be called davinci_wdt. 575 576 NOTE: once enabled, this timer cannot be disabled. 577 Say N if you are unsure. 578 579config K3_RTI_WATCHDOG 580 tristate "Texas Instruments K3 RTI watchdog" 581 depends on ARCH_K3 || COMPILE_TEST 582 select WATCHDOG_CORE 583 help 584 Say Y here if you want to include support for the K3 watchdog 585 timer (RTI module) available in the K3 generation of processors. 586 587config ORION_WATCHDOG 588 tristate "Orion watchdog" 589 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 590 depends on ARM 591 select WATCHDOG_CORE 592 help 593 Say Y here if to include support for the watchdog timer 594 in the Marvell Orion5x and Kirkwood ARM SoCs. 595 To compile this driver as a module, choose M here: the 596 module will be called orion_wdt. 597 598config RN5T618_WATCHDOG 599 tristate "Ricoh RN5T618 watchdog" 600 depends on MFD_RN5T618 || COMPILE_TEST 601 select WATCHDOG_CORE 602 help 603 If you say yes here you get support for watchdog on the Ricoh 604 RN5T618 PMIC. 605 606 This driver can also be built as a module. If so, the module 607 will be called rn5t618_wdt. 608 609config SUNXI_WATCHDOG 610 tristate "Allwinner SoCs watchdog support" 611 depends on ARCH_SUNXI || COMPILE_TEST 612 select WATCHDOG_CORE 613 help 614 Say Y here to include support for the watchdog timer 615 in Allwinner SoCs. 616 To compile this driver as a module, choose M here: the 617 module will be called sunxi_wdt. 618 619config NPCM7XX_WATCHDOG 620 tristate "Nuvoton NPCM750 watchdog" 621 depends on ARCH_NPCM || COMPILE_TEST 622 default y if ARCH_NPCM7XX 623 select WATCHDOG_CORE 624 help 625 Say Y here to include Watchdog timer support for the 626 watchdog embedded into the NPCM7xx. 627 This watchdog is used to reset the system and thus cannot be 628 compiled as a module. 629 630config TWL4030_WATCHDOG 631 tristate "TWL4030 Watchdog" 632 depends on TWL4030_CORE 633 select WATCHDOG_CORE 634 help 635 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 636 watchdog timer support for TWL4030 chips. 637 638config STMP3XXX_RTC_WATCHDOG 639 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 640 depends on RTC_DRV_STMP || COMPILE_TEST 641 select WATCHDOG_CORE 642 help 643 Say Y here to include support for the watchdog timer inside 644 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 645 To compile this driver as a module, choose M here: the 646 module will be called stmp3xxx_rtc_wdt. 647 648config TS4800_WATCHDOG 649 tristate "TS-4800 Watchdog" 650 depends on HAS_IOMEM && OF 651 depends on SOC_IMX51 || COMPILE_TEST 652 select WATCHDOG_CORE 653 select MFD_SYSCON 654 help 655 Technologic Systems TS-4800 has watchdog timer implemented in 656 an external FPGA. Say Y here if you want to support for the 657 watchdog timer on TS-4800 board. 658 659config TS72XX_WATCHDOG 660 tristate "TS-72XX SBC Watchdog" 661 depends on MACH_TS72XX || COMPILE_TEST 662 select WATCHDOG_CORE 663 help 664 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 665 watchdog timer implemented in a external CPLD chip. Say Y here 666 if you want to support for the watchdog timer on TS-72XX boards. 667 668 To compile this driver as a module, choose M here: the 669 module will be called ts72xx_wdt. 670 671config MAX63XX_WATCHDOG 672 tristate "Max63xx watchdog" 673 depends on HAS_IOMEM 674 select WATCHDOG_CORE 675 help 676 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 677 678config MAX77620_WATCHDOG 679 tristate "Maxim Max77620 Watchdog Timer" 680 depends on MFD_MAX77620 || COMPILE_TEST 681 select WATCHDOG_CORE 682 help 683 This is the driver for the Max77620 watchdog timer. 684 Say 'Y' here to enable the watchdog timer support for 685 MAX77620 chips. To compile this driver as a module, 686 choose M here: the module will be called max77620_wdt. 687 688config IMX2_WDT 689 tristate "IMX2+ Watchdog" 690 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 691 select REGMAP_MMIO 692 select WATCHDOG_CORE 693 help 694 This is the driver for the hardware watchdog 695 on the Freescale IMX2 and later processors. 696 If you have one of these processors and wish to have 697 watchdog support enabled, say Y, otherwise say N. 698 699 To compile this driver as a module, choose M here: the 700 module will be called imx2_wdt. 701 702config IMX_SC_WDT 703 tristate "IMX SC Watchdog" 704 depends on HAVE_ARM_SMCCC 705 depends on IMX_SCU 706 select WATCHDOG_CORE 707 help 708 This is the driver for the system controller watchdog 709 on the NXP i.MX SoCs with system controller inside, the 710 watchdog driver will call ARM SMC API and trap into 711 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 712 will request system controller to execute the operations. 713 If you have one of these processors and wish to have 714 watchdog support enabled, say Y, otherwise say N. 715 716 To compile this driver as a module, choose M here: the 717 module will be called imx_sc_wdt. 718 719config IMX7ULP_WDT 720 tristate "IMX7ULP Watchdog" 721 depends on ARCH_MXC || COMPILE_TEST 722 select WATCHDOG_CORE 723 help 724 This is the driver for the hardware watchdog on the Freescale 725 IMX7ULP and later processors. If you have one of these 726 processors and wish to have watchdog support enabled, 727 say Y, otherwise say N. 728 729 To compile this driver as a module, choose M here: the 730 module will be called imx7ulp_wdt. 731 732config DB500_WATCHDOG 733 tristate "ST-Ericsson DB800 watchdog" 734 depends on MFD_DB8500_PRCMU 735 select WATCHDOG_CORE 736 default y 737 help 738 Say Y here to include Watchdog timer support for the watchdog 739 existing in the prcmu of ST-Ericsson DB8500 platform. 740 741 To compile this driver as a module, choose M here: the 742 module will be called db500_wdt. 743 744config RETU_WATCHDOG 745 tristate "Retu watchdog" 746 depends on MFD_RETU 747 select WATCHDOG_CORE 748 help 749 Retu watchdog driver for Nokia Internet Tablets (770, N800, 750 N810). At least on N800 the watchdog cannot be disabled, so 751 this driver is essential and you should enable it. 752 753 To compile this driver as a module, choose M here: the 754 module will be called retu_wdt. 755 756config MOXART_WDT 757 tristate "MOXART watchdog" 758 depends on ARCH_MOXART || COMPILE_TEST 759 help 760 Say Y here to include Watchdog timer support for the watchdog 761 existing on the MOXA ART SoC series platforms. 762 763 To compile this driver as a module, choose M here: the 764 module will be called moxart_wdt. 765 766config ST_LPC_WATCHDOG 767 tristate "STMicroelectronics LPC Watchdog" 768 depends on ARCH_STI || COMPILE_TEST 769 depends on OF 770 select WATCHDOG_CORE 771 help 772 Say Y here to include STMicroelectronics Low Power Controller 773 (LPC) based Watchdog timer support. 774 775 To compile this driver as a module, choose M here: the 776 module will be called st_lpc_wdt. 777 778config TEGRA_WATCHDOG 779 tristate "Tegra watchdog" 780 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 781 select WATCHDOG_CORE 782 help 783 Say Y here to include support for the watchdog timer 784 embedded in NVIDIA Tegra SoCs. 785 786 To compile this driver as a module, choose M here: the 787 module will be called tegra_wdt. 788 789config QCOM_WDT 790 tristate "QCOM watchdog" 791 depends on HAS_IOMEM 792 depends on ARCH_QCOM || COMPILE_TEST 793 select WATCHDOG_CORE 794 help 795 Say Y here to include Watchdog timer support for the watchdog found 796 on QCOM chipsets. Currently supported targets are the MSM8960, 797 APQ8064, and IPQ8064. 798 799 To compile this driver as a module, choose M here: the 800 module will be called qcom_wdt. 801 802config MESON_GXBB_WATCHDOG 803 tristate "Amlogic Meson GXBB SoCs watchdog support" 804 depends on ARCH_MESON || COMPILE_TEST 805 select WATCHDOG_CORE 806 help 807 Say Y here to include support for the watchdog timer 808 in Amlogic Meson GXBB SoCs. 809 To compile this driver as a module, choose M here: the 810 module will be called meson_gxbb_wdt. 811 812config MESON_WATCHDOG 813 tristate "Amlogic Meson SoCs watchdog support" 814 depends on ARCH_MESON || COMPILE_TEST 815 select WATCHDOG_CORE 816 help 817 Say Y here to include support for the watchdog timer 818 in Amlogic Meson SoCs. 819 To compile this driver as a module, choose M here: the 820 module will be called meson_wdt. 821 822config MEDIATEK_WATCHDOG 823 tristate "Mediatek SoCs watchdog support" 824 depends on ARCH_MEDIATEK || COMPILE_TEST 825 select WATCHDOG_CORE 826 select RESET_CONTROLLER 827 help 828 Say Y here to include support for the watchdog timer 829 in Mediatek SoCs. 830 To compile this driver as a module, choose M here: the 831 module will be called mtk_wdt. 832 833config DIGICOLOR_WATCHDOG 834 tristate "Conexant Digicolor SoCs watchdog support" 835 depends on ARCH_DIGICOLOR || COMPILE_TEST 836 select WATCHDOG_CORE 837 help 838 Say Y here to include support for the watchdog timer 839 in Conexant Digicolor SoCs. 840 To compile this driver as a module, choose M here: the 841 module will be called digicolor_wdt. 842 843config ARM_SMC_WATCHDOG 844 tristate "ARM Secure Monitor Call based watchdog support" 845 depends on ARM || ARM64 846 depends on OF 847 depends on HAVE_ARM_SMCCC 848 select WATCHDOG_CORE 849 help 850 Say Y here to include support for a watchdog timer 851 implemented by the EL3 Secure Monitor on ARM platforms. 852 Requires firmware support. 853 To compile this driver as a module, choose M here: the 854 module will be called arm_smc_wdt. 855 856config LPC18XX_WATCHDOG 857 tristate "LPC18xx/43xx Watchdog" 858 depends on ARCH_LPC18XX || COMPILE_TEST 859 depends on HAS_IOMEM 860 select WATCHDOG_CORE 861 help 862 Say Y here if to include support for the watchdog timer 863 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 864 processors. 865 To compile this driver as a module, choose M here: the 866 module will be called lpc18xx_wdt. 867 868config RENESAS_WDT 869 tristate "Renesas WDT Watchdog" 870 depends on ARCH_RENESAS || COMPILE_TEST 871 select WATCHDOG_CORE 872 help 873 This driver adds watchdog support for the integrated watchdogs in the 874 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 875 876config RENESAS_RZAWDT 877 tristate "Renesas RZ/A WDT Watchdog" 878 depends on ARCH_RENESAS || COMPILE_TEST 879 select WATCHDOG_CORE 880 help 881 This driver adds watchdog support for the integrated watchdogs in the 882 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 883 884config ASPEED_WATCHDOG 885 tristate "Aspeed BMC watchdog support" 886 depends on ARCH_ASPEED || COMPILE_TEST 887 select WATCHDOG_CORE 888 help 889 Say Y here to include support for the watchdog timer 890 in Aspeed BMC SoCs. 891 892 This driver is required to reboot the SoC. 893 894 To compile this driver as a module, choose M here: the 895 module will be called aspeed_wdt. 896 897config STM32_WATCHDOG 898 tristate "STM32 Independent WatchDoG (IWDG) support" 899 depends on ARCH_STM32 900 select WATCHDOG_CORE 901 default y 902 help 903 Say Y here to include support for the watchdog timer 904 in stm32 SoCs. 905 906 To compile this driver as a module, choose M here: the 907 module will be called stm32_iwdg. 908 909config STPMIC1_WATCHDOG 910 tristate "STPMIC1 PMIC watchdog support" 911 depends on MFD_STPMIC1 912 select WATCHDOG_CORE 913 help 914 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 915 If the watchdog timer expires, stpmic1 will shut down all its power 916 supplies. 917 918 To compile this driver as a module, choose M here: the 919 module will be called spmic1_wdt. 920 921config UNIPHIER_WATCHDOG 922 tristate "UniPhier watchdog support" 923 depends on ARCH_UNIPHIER || COMPILE_TEST 924 depends on OF && MFD_SYSCON 925 select WATCHDOG_CORE 926 help 927 Say Y here to include support watchdog timer embedded 928 into the UniPhier system. 929 930 To compile this driver as a module, choose M here: the 931 module will be called uniphier_wdt. 932 933config RTD119X_WATCHDOG 934 bool "Realtek RTD119x/RTD129x watchdog support" 935 depends on ARCH_REALTEK || COMPILE_TEST 936 depends on OF 937 select WATCHDOG_CORE 938 default ARCH_REALTEK 939 help 940 Say Y here to include support for the watchdog timer in 941 Realtek RTD1295 SoCs. 942 943config SPRD_WATCHDOG 944 tristate "Spreadtrum watchdog support" 945 depends on ARCH_SPRD || COMPILE_TEST 946 select WATCHDOG_CORE 947 help 948 Say Y here to include watchdog timer supported 949 by Spreadtrum system. 950 951config PM8916_WATCHDOG 952 tristate "QCOM PM8916 pmic watchdog" 953 depends on OF && MFD_SPMI_PMIC 954 select WATCHDOG_CORE 955 help 956 Say Y here to include support watchdog timer embedded into the 957 pm8916 module. 958 959config VISCONTI_WATCHDOG 960 tristate "Toshiba Visconti series watchdog support" 961 depends on ARCH_VISCONTI || COMPILE_TEST 962 select WATCHDOG_CORE 963 help 964 Say Y here to include support for the watchdog timer in Toshiba 965 Visconti SoCs. 966 967config MSC313E_WATCHDOG 968 tristate "MStar MSC313e watchdog" 969 depends on ARCH_MSTARV7 || COMPILE_TEST 970 select WATCHDOG_CORE 971 help 972 Say Y here to include support for the Watchdog timer embedded 973 into MStar MSC313e chips. This will reboot your system when the 974 timeout is reached. 975 976 To compile this driver as a module, choose M here: the 977 module will be called msc313e_wdt. 978 979# X86 (i386 + ia64 + x86_64) Architecture 980 981config ACQUIRE_WDT 982 tristate "Acquire SBC Watchdog Timer" 983 depends on X86 984 help 985 This is the driver for the hardware watchdog on Single Board 986 Computers produced by Acquire Inc (and others). This watchdog 987 simply watches your kernel to make sure it doesn't freeze, and if 988 it does, it reboots your computer after a certain amount of time. 989 990 To compile this driver as a module, choose M here: the 991 module will be called acquirewdt. 992 993 Most people will say N. 994 995config ADVANTECH_WDT 996 tristate "Advantech SBC Watchdog Timer" 997 depends on X86 998 help 999 If you are configuring a Linux kernel for the Advantech single-board 1000 computer, say `Y' here to support its built-in watchdog timer 1001 feature. More information can be found at 1002 <https://www.advantech.com.tw/products/> 1003 1004config ALIM1535_WDT 1005 tristate "ALi M1535 PMU Watchdog Timer" 1006 depends on X86 && PCI 1007 help 1008 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1009 1010 To compile this driver as a module, choose M here: the 1011 module will be called alim1535_wdt. 1012 1013 Most people will say N. 1014 1015config ALIM7101_WDT 1016 tristate "ALi M7101 PMU Computer Watchdog" 1017 depends on PCI 1018 help 1019 This is the driver for the hardware watchdog on the ALi M7101 PMU 1020 as used in the x86 Cobalt servers and also found in some 1021 SPARC Netra servers too. 1022 1023 To compile this driver as a module, choose M here: the 1024 module will be called alim7101_wdt. 1025 1026 Most people will say N. 1027 1028config EBC_C384_WDT 1029 tristate "WinSystems EBC-C384 Watchdog Timer" 1030 depends on X86 1031 select ISA_BUS_API 1032 select WATCHDOG_CORE 1033 help 1034 Enables watchdog timer support for the watchdog timer on the 1035 WinSystems EBC-C384 motherboard. The timeout may be configured via 1036 the timeout module parameter. 1037 1038config F71808E_WDT 1039 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1040 depends on X86 1041 select WATCHDOG_CORE 1042 help 1043 This is the driver for the hardware watchdog on the Fintek F71808E, 1044 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1045 F81866 Super I/O controllers. 1046 1047 You can compile this driver directly into the kernel, or use 1048 it as a module. The module will be called f71808e_wdt. 1049 1050config SP5100_TCO 1051 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1052 depends on X86 && PCI 1053 select WATCHDOG_CORE 1054 help 1055 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1056 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1057 the machine after its expiration. The expiration time can be 1058 configured with the "heartbeat" parameter. 1059 1060 To compile this driver as a module, choose M here: the 1061 module will be called sp5100_tco. 1062 1063config GEODE_WDT 1064 tristate "AMD Geode CS5535/CS5536 Watchdog" 1065 depends on CS5535_MFGPT 1066 help 1067 This driver enables a watchdog capability built into the 1068 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1069 processors. This watchdog watches your kernel to make sure 1070 it doesn't freeze, and if it does, it reboots your computer after 1071 a certain amount of time. 1072 1073 You can compile this driver directly into the kernel, or use 1074 it as a module. The module will be called geodewdt. 1075 1076config SC520_WDT 1077 tristate "AMD Elan SC520 processor Watchdog" 1078 depends on MELAN || COMPILE_TEST 1079 help 1080 This is the driver for the hardware watchdog built in to the 1081 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1082 This watchdog simply watches your kernel to make sure it doesn't 1083 freeze, and if it does, it reboots your computer after a certain 1084 amount of time. 1085 1086 You can compile this driver directly into the kernel, or use 1087 it as a module. The module will be called sc520_wdt. 1088 1089config SBC_FITPC2_WATCHDOG 1090 tristate "Compulab SBC-FITPC2 watchdog" 1091 depends on X86 1092 help 1093 This is the driver for the built-in watchdog timer on the fit-PC2, 1094 fit-PC2i, CM-iAM single-board computers made by Compulab. 1095 1096 It's possible to enable the watchdog timer either from BIOS (F2) or 1097 from booted Linux. 1098 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1099 operational range. 1100 1101 Entering BIOS setup temporarily disables watchdog operation regardless 1102 of current state, so system will not be restarted while user is in 1103 BIOS setup. 1104 1105 Once the watchdog is enabled the system will be restarted every 1106 "Watchdog Timer Value" period, so to prevent it user can restart or 1107 disable the watchdog. 1108 1109 To compile this driver as a module, choose M here: the 1110 module will be called sbc_fitpc2_wdt. 1111 1112 Most people will say N. 1113 1114config EUROTECH_WDT 1115 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1116 depends on X86 1117 help 1118 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1119 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1120 information are at <http://www.eurotech.it/>. 1121 1122config IB700_WDT 1123 tristate "IB700 SBC Watchdog Timer" 1124 depends on X86 1125 help 1126 This is the driver for the hardware watchdog on the IB700 Single 1127 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1128 watchdog simply watches your kernel to make sure it doesn't freeze, 1129 and if it does, it reboots your computer after a certain amount of time. 1130 1131 This driver is like the WDT501 driver but for slightly different 1132 hardware. 1133 1134 To compile this driver as a module, choose M here: the 1135 module will be called ib700wdt. 1136 1137 Most people will say N. 1138 1139config IBMASR 1140 tristate "IBM Automatic Server Restart" 1141 depends on X86 1142 help 1143 This is the driver for the IBM Automatic Server Restart watchdog 1144 timer built-in into some eServer xSeries machines. 1145 1146 To compile this driver as a module, choose M here: the 1147 module will be called ibmasr. 1148 1149config WAFER_WDT 1150 tristate "ICP Single Board Computer Watchdog Timer" 1151 depends on X86 1152 help 1153 This is a driver for the hardware watchdog on the ICP Single 1154 Board Computer. This driver is working on (at least) the following 1155 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1156 1157 To compile this driver as a module, choose M here: the 1158 module will be called wafer5823wdt. 1159 1160config I6300ESB_WDT 1161 tristate "Intel 6300ESB Timer/Watchdog" 1162 depends on PCI 1163 select WATCHDOG_CORE 1164 help 1165 Hardware driver for the watchdog timer built into the Intel 1166 6300ESB controller hub. 1167 1168 To compile this driver as a module, choose M here: the 1169 module will be called i6300esb. 1170 1171config IE6XX_WDT 1172 tristate "Intel Atom E6xx Watchdog" 1173 depends on X86 && PCI 1174 select WATCHDOG_CORE 1175 select MFD_CORE 1176 select LPC_SCH 1177 help 1178 Hardware driver for the watchdog timer built into the Intel 1179 Atom E6XX (TunnelCreek) processor. 1180 1181 To compile this driver as a module, choose M here: the 1182 module will be called ie6xx_wdt. 1183 1184config INTEL_MID_WATCHDOG 1185 tristate "Intel MID Watchdog Timer" 1186 depends on X86_INTEL_MID 1187 select WATCHDOG_CORE 1188 help 1189 Watchdog timer driver built into the Intel SCU for Intel MID 1190 Platforms. 1191 1192 This driver currently supports only the watchdog evolution 1193 implementation in SCU, available for Merrifield generation. 1194 1195 To compile this driver as a module, choose M here. 1196 1197config ITCO_WDT 1198 tristate "Intel TCO Timer/Watchdog" 1199 depends on (X86 || IA64) && PCI 1200 select WATCHDOG_CORE 1201 depends on I2C || I2C=n 1202 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1203 select LPC_ICH if !EXPERT 1204 select I2C_I801 if !EXPERT && I2C 1205 help 1206 Hardware driver for the intel TCO timer based watchdog devices. 1207 These drivers are included in the Intel 82801 I/O Controller 1208 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1209 controller hub. 1210 1211 The TCO (Total Cost of Ownership) timer is a watchdog timer 1212 that will reboot the machine after its second expiration. The 1213 expiration time can be configured with the "heartbeat" parameter. 1214 1215 On some motherboards the driver may fail to reset the chipset's 1216 NO_REBOOT flag which prevents the watchdog from rebooting the 1217 machine. If this is the case you will get a kernel message like 1218 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1219 1220 To compile this driver as a module, choose M here: the 1221 module will be called iTCO_wdt. 1222 1223config ITCO_VENDOR_SUPPORT 1224 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1225 depends on ITCO_WDT 1226 help 1227 Add vendor specific support to the intel TCO timer based watchdog 1228 devices. At this moment we only have additional support for some 1229 SuperMicro Inc. motherboards. 1230 1231config IT8712F_WDT 1232 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1233 depends on X86 1234 help 1235 This is the driver for the built-in watchdog timer on the IT8712F 1236 Super I/0 chipset used on many motherboards. 1237 1238 If the driver does not work, then make sure that the game port in 1239 the BIOS is enabled. 1240 1241 To compile this driver as a module, choose M here: the 1242 module will be called it8712f_wdt. 1243 1244config IT87_WDT 1245 tristate "IT87 Watchdog Timer" 1246 depends on X86 1247 select WATCHDOG_CORE 1248 help 1249 This is the driver for the hardware watchdog on the ITE IT8607, 1250 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1251 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1252 IT8783 Super I/O chips. 1253 1254 This watchdog simply watches your kernel to make sure it doesn't 1255 freeze, and if it does, it reboots your computer after a certain 1256 amount of time. 1257 1258 To compile this driver as a module, choose M here: the module will 1259 be called it87_wdt. 1260 1261config HP_WATCHDOG 1262 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1263 select WATCHDOG_CORE 1264 depends on X86 && PCI 1265 help 1266 A software monitoring watchdog and NMI handling driver. This driver 1267 will detect lockups and provide a stack trace. This is a driver that 1268 will only load on an HP ProLiant system with a minimum of iLO2 support. 1269 To compile this driver as a module, choose M here: the module will be 1270 called hpwdt. 1271 1272config HPWDT_NMI_DECODING 1273 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1274 depends on HP_WATCHDOG 1275 default y 1276 help 1277 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1278 "Generate NMI to System" virtual button. When an NMI is claimed 1279 by the driver, panic is called. 1280 1281config KEMPLD_WDT 1282 tristate "Kontron COM Watchdog Timer" 1283 depends on MFD_KEMPLD 1284 select WATCHDOG_CORE 1285 help 1286 Support for the PLD watchdog on some Kontron ETX and COMexpress 1287 (ETXexpress) modules 1288 1289 This driver can also be built as a module. If so, the module will be 1290 called kempld_wdt. 1291 1292config SC1200_WDT 1293 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1294 depends on X86 1295 help 1296 This is a driver for National Semiconductor PC87307/PC97307 hardware 1297 watchdog cards as found on the SC1200. This watchdog is mainly used 1298 for power management purposes and can be used to power down the device 1299 during inactivity periods (includes interrupt activity monitoring). 1300 1301 To compile this driver as a module, choose M here: the 1302 module will be called sc1200wdt. 1303 1304 Most people will say N. 1305 1306config SCx200_WDT 1307 tristate "National Semiconductor SCx200 Watchdog" 1308 depends on SCx200 && PCI 1309 help 1310 Enable the built-in watchdog timer support on the National 1311 Semiconductor SCx200 processors. 1312 1313 If compiled as a module, it will be called scx200_wdt. 1314 1315config PC87413_WDT 1316 tristate "NS PC87413 watchdog" 1317 depends on X86 1318 help 1319 This is the driver for the hardware watchdog on the PC87413 chipset 1320 This watchdog simply watches your kernel to make sure it doesn't 1321 freeze, and if it does, it reboots your computer after a certain 1322 amount of time. 1323 1324 To compile this driver as a module, choose M here: the 1325 module will be called pc87413_wdt. 1326 1327 Most people will say N. 1328 1329config NV_TCO 1330 tristate "nVidia TCO Timer/Watchdog" 1331 depends on X86 && PCI 1332 help 1333 Hardware driver for the TCO timer built into the nVidia Hub family 1334 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1335 watchdog timer that will reboot the machine after its second 1336 expiration. The expiration time can be configured with the 1337 "heartbeat" parameter. 1338 1339 On some motherboards the driver may fail to reset the chipset's 1340 NO_REBOOT flag which prevents the watchdog from rebooting the 1341 machine. If this is the case you will get a kernel message like 1342 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1343 1344 To compile this driver as a module, choose M here: the 1345 module will be called nv_tco. 1346 1347config RDC321X_WDT 1348 tristate "RDC R-321x SoC watchdog" 1349 depends on X86_RDC321X || COMPILE_TEST 1350 depends on PCI 1351 help 1352 This is the driver for the built in hardware watchdog 1353 in the RDC R-321x SoC. 1354 1355 To compile this driver as a module, choose M here: the 1356 module will be called rdc321x_wdt. 1357 1358config 60XX_WDT 1359 tristate "SBC-60XX Watchdog Timer" 1360 depends on X86 1361 help 1362 This driver can be used with the watchdog timer found on some 1363 single board computers, namely the 6010 PII based computer. 1364 It may well work with other cards. It reads port 0x443 to enable 1365 and re-set the watchdog timer, and reads port 0x45 to disable 1366 the watchdog. If you have a card that behave in similar ways, 1367 you can probably make this driver work with your card as well. 1368 1369 You can compile this driver directly into the kernel, or use 1370 it as a module. The module will be called sbc60xxwdt. 1371 1372config SBC8360_WDT 1373 tristate "SBC8360 Watchdog Timer" 1374 depends on X86_32 1375 help 1376 1377 This is the driver for the hardware watchdog on the SBC8360 Single 1378 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1379 1380 To compile this driver as a module, choose M here: the 1381 module will be called sbc8360. 1382 1383 Most people will say N. 1384 1385config SBC7240_WDT 1386 tristate "SBC Nano 7240 Watchdog Timer" 1387 depends on X86_32 && !UML 1388 help 1389 This is the driver for the hardware watchdog found on the IEI 1390 single board computers EPIC Nano 7240 (and likely others). This 1391 watchdog simply watches your kernel to make sure it doesn't freeze, 1392 and if it does, it reboots your computer after a certain amount of 1393 time. 1394 1395 To compile this driver as a module, choose M here: the 1396 module will be called sbc7240_wdt. 1397 1398config CPU5_WDT 1399 tristate "SMA CPU5 Watchdog" 1400 depends on X86 1401 help 1402 TBD. 1403 To compile this driver as a module, choose M here: the 1404 module will be called cpu5wdt. 1405 1406config SMSC_SCH311X_WDT 1407 tristate "SMSC SCH311X Watchdog Timer" 1408 depends on X86 1409 help 1410 This is the driver for the hardware watchdog timer on the 1411 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1412 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1413 serial ports). 1414 1415 To compile this driver as a module, choose M here: the 1416 module will be called sch311x_wdt. 1417 1418config SMSC37B787_WDT 1419 tristate "Winbond SMsC37B787 Watchdog Timer" 1420 depends on X86 1421 help 1422 This is the driver for the hardware watchdog component on the 1423 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1424 from Vision Systems and maybe others. 1425 1426 This watchdog simply watches your kernel to make sure it doesn't 1427 freeze, and if it does, it reboots your computer after a certain 1428 amount of time. 1429 1430 Usually a userspace daemon will notify the kernel WDT driver that 1431 userspace is still alive, at regular intervals. 1432 1433 To compile this driver as a module, choose M here: the 1434 module will be called smsc37b787_wdt. 1435 1436 Most people will say N. 1437 1438config TQMX86_WDT 1439 tristate "TQ-Systems TQMX86 Watchdog Timer" 1440 depends on X86 1441 select WATCHDOG_CORE 1442 help 1443 This is the driver for the hardware watchdog timer in the TQMX86 IO 1444 controller found on some of their ComExpress Modules. 1445 1446 To compile this driver as a module, choose M here; the module 1447 will be called tqmx86_wdt. 1448 1449 Most people will say N. 1450 1451config VIA_WDT 1452 tristate "VIA Watchdog Timer" 1453 depends on X86 && PCI 1454 select WATCHDOG_CORE 1455 help 1456 This is the driver for the hardware watchdog timer on VIA 1457 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1458 1459 To compile this driver as a module, choose M here; the module 1460 will be called via_wdt. 1461 1462 Most people will say N. 1463 1464config W83627HF_WDT 1465 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1466 depends on X86 1467 select WATCHDOG_CORE 1468 help 1469 This is the driver for the hardware watchdog on the following 1470 Super I/O chips. 1471 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1472 W83637HF 1473 W83667HG/HG-B 1474 W83687THF 1475 W83697HF 1476 W83697UG 1477 NCT6775 1478 NCT6776 1479 NCT6779 1480 NCT6791 1481 NCT6792 1482 NCT6102D/04D/06D 1483 NCT6116D 1484 1485 This watchdog simply watches your kernel to make sure it doesn't 1486 freeze, and if it does, it reboots your computer after a certain 1487 amount of time. 1488 1489 To compile this driver as a module, choose M here: the 1490 module will be called w83627hf_wdt. 1491 1492 Most people will say N. 1493 1494config W83877F_WDT 1495 tristate "W83877F (EMACS) Watchdog Timer" 1496 depends on X86 1497 help 1498 This is the driver for the hardware watchdog on the W83877F chipset 1499 as used in EMACS PC-104 motherboards (and likely others). This 1500 watchdog simply watches your kernel to make sure it doesn't freeze, 1501 and if it does, it reboots your computer after a certain amount of 1502 time. 1503 1504 To compile this driver as a module, choose M here: the 1505 module will be called w83877f_wdt. 1506 1507 Most people will say N. 1508 1509config W83977F_WDT 1510 tristate "W83977F (PCM-5335) Watchdog Timer" 1511 depends on X86 1512 help 1513 This is the driver for the hardware watchdog on the W83977F I/O chip 1514 as used in AAEON's PCM-5335 SBC (and likely others). This 1515 watchdog simply watches your kernel to make sure it doesn't freeze, 1516 and if it does, it reboots your computer after a certain amount of 1517 time. 1518 1519 To compile this driver as a module, choose M here: the 1520 module will be called w83977f_wdt. 1521 1522config MACHZ_WDT 1523 tristate "ZF MachZ Watchdog" 1524 depends on X86 1525 help 1526 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1527 N. This is the driver for the watchdog timer built-in on that 1528 processor using ZF-Logic interface. This watchdog simply watches 1529 your kernel to make sure it doesn't freeze, and if it does, it 1530 reboots your computer after a certain amount of time. 1531 1532 To compile this driver as a module, choose M here: the 1533 module will be called machzwd. 1534 1535config SBC_EPX_C3_WATCHDOG 1536 tristate "Winsystems SBC EPX-C3 watchdog" 1537 depends on X86 1538 help 1539 This is the driver for the built-in watchdog timer on the EPX-C3 1540 Single-board computer made by Winsystems, Inc. 1541 1542 *Note*: This hardware watchdog is not probeable and thus there 1543 is no way to know if writing to its IO address will corrupt 1544 your system or have any real effect. The only way to be sure 1545 that this driver does what you want is to make sure you 1546 are running it on an EPX-C3 from Winsystems with the watchdog 1547 timer at IO address 0x1ee and 0x1ef. It will write to both those 1548 IO ports. Basically, the assumption is made that if you compile 1549 this driver into your kernel and/or load it as a module, that you 1550 know what you are doing and that you are in fact running on an 1551 EPX-C3 board! 1552 1553 To compile this driver as a module, choose M here: the 1554 module will be called sbc_epx_c3. 1555 1556config INTEL_MEI_WDT 1557 tristate "Intel MEI iAMT Watchdog" 1558 depends on INTEL_MEI && X86 1559 select WATCHDOG_CORE 1560 help 1561 A device driver for the Intel MEI iAMT watchdog. 1562 1563 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1564 Whenever the OS hangs or crashes, iAMT will send an event 1565 to any subscriber to this event. The watchdog doesn't reset the 1566 the platform. 1567 1568 To compile this driver as a module, choose M here: 1569 the module will be called mei_wdt. 1570 1571config NI903X_WDT 1572 tristate "NI 903x/913x Watchdog" 1573 depends on X86 && ACPI 1574 select WATCHDOG_CORE 1575 help 1576 This is the driver for the watchdog timer on the National Instruments 1577 903x/913x real-time controllers. 1578 1579 To compile this driver as a module, choose M here: the module will be 1580 called ni903x_wdt. 1581 1582config NIC7018_WDT 1583 tristate "NIC7018 Watchdog" 1584 depends on X86 && ACPI 1585 select WATCHDOG_CORE 1586 help 1587 Support for National Instruments NIC7018 Watchdog. 1588 1589 To compile this driver as a module, choose M here: the module will be 1590 called nic7018_wdt. 1591 1592# M68K Architecture 1593 1594config M54xx_WATCHDOG 1595 tristate "MCF54xx watchdog support" 1596 depends on M548x 1597 help 1598 To compile this driver as a module, choose M here: the 1599 module will be called m54xx_wdt. 1600 1601# MicroBlaze Architecture 1602 1603# MIPS Architecture 1604 1605config ATH79_WDT 1606 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1607 depends on ATH79 || (ARM && COMPILE_TEST) 1608 help 1609 Hardware driver for the built-in watchdog timer on the Atheros 1610 AR71XX/AR724X/AR913X SoCs. 1611 1612config BCM47XX_WDT 1613 tristate "Broadcom BCM47xx Watchdog Timer" 1614 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1615 select WATCHDOG_CORE 1616 help 1617 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1618 1619config RC32434_WDT 1620 tristate "IDT RC32434 SoC Watchdog Timer" 1621 depends on MIKROTIK_RB532 1622 help 1623 Hardware driver for the IDT RC32434 SoC built-in 1624 watchdog timer. 1625 1626 To compile this driver as a module, choose M here: the 1627 module will be called rc32434_wdt. 1628 1629config INDYDOG 1630 tristate "Indy/I2 Hardware Watchdog" 1631 depends on SGI_HAS_INDYDOG 1632 help 1633 Hardware driver for the Indy's/I2's watchdog. This is a 1634 watchdog timer that will reboot the machine after a 60 second 1635 timer expired and no process has written to /dev/watchdog during 1636 that time. 1637 1638config JZ4740_WDT 1639 tristate "Ingenic jz4740 SoC hardware watchdog" 1640 depends on MIPS 1641 depends on COMMON_CLK 1642 select WATCHDOG_CORE 1643 select MFD_SYSCON 1644 help 1645 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1646 1647config WDT_MTX1 1648 tristate "MTX-1 Hardware Watchdog" 1649 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1650 help 1651 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1652 will reboot the machine after a 100 seconds timer expired. 1653 1654config SIBYTE_WDOG 1655 tristate "Sibyte SoC hardware watchdog" 1656 depends on CPU_SB1 1657 help 1658 Watchdog driver for the built in watchdog hardware in Sibyte 1659 SoC processors. There are apparently two watchdog timers 1660 on such processors; this driver supports only the first one, 1661 because currently Linux only supports exporting one watchdog 1662 to userspace. 1663 1664 To compile this driver as a loadable module, choose M here. 1665 The module will be called sb_wdog. 1666 1667config AR7_WDT 1668 tristate "TI AR7 Watchdog Timer" 1669 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST) 1670 help 1671 Hardware driver for the TI AR7 Watchdog Timer. 1672 1673config TXX9_WDT 1674 tristate "Toshiba TXx9 Watchdog Timer" 1675 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1676 select WATCHDOG_CORE 1677 help 1678 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1679 1680config OCTEON_WDT 1681 tristate "Cavium OCTEON SOC family Watchdog Timer" 1682 depends on CAVIUM_OCTEON_SOC 1683 default y 1684 select WATCHDOG_CORE 1685 select EXPORT_UASM if OCTEON_WDT = m 1686 help 1687 Hardware driver for OCTEON's on chip watchdog timer. 1688 Enables the watchdog for all cores running Linux. It 1689 installs a NMI handler and pokes the watchdog based on an 1690 interrupt. On first expiration of the watchdog, the 1691 interrupt handler pokes it. The second expiration causes an 1692 NMI that prints a message. The third expiration causes a 1693 global soft reset. 1694 1695 When userspace has /dev/watchdog open, no poking is done 1696 from the first interrupt, it is then only poked when the 1697 device is written. 1698 1699config BCM63XX_WDT 1700 tristate "Broadcom BCM63xx hardware watchdog" 1701 depends on BCM63XX 1702 help 1703 Watchdog driver for the built in watchdog hardware in Broadcom 1704 BCM63xx SoC. 1705 1706 To compile this driver as a loadable module, choose M here. 1707 The module will be called bcm63xx_wdt. 1708 1709config BCM2835_WDT 1710 tristate "Broadcom BCM2835 hardware watchdog" 1711 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1712 select WATCHDOG_CORE 1713 help 1714 Watchdog driver for the built in watchdog hardware in Broadcom 1715 BCM2835 SoC. 1716 1717 To compile this driver as a loadable module, choose M here. 1718 The module will be called bcm2835_wdt. 1719 1720config BCM_KONA_WDT 1721 tristate "BCM Kona Watchdog" 1722 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1723 select WATCHDOG_CORE 1724 help 1725 Support for the watchdog timer on the following Broadcom BCM281xx 1726 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1727 BCM28155 variants. 1728 1729 Say 'Y' or 'M' here to enable the driver. The module will be called 1730 bcm_kona_wdt. 1731 1732config BCM_KONA_WDT_DEBUG 1733 bool "DEBUGFS support for BCM Kona Watchdog" 1734 depends on BCM_KONA_WDT 1735 help 1736 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1737 access to the driver's internal data structures as well as watchdog 1738 timer hardware registres. 1739 1740 If in doubt, say 'N'. 1741 1742config BCM7038_WDT 1743 tristate "BCM7038 Watchdog" 1744 select WATCHDOG_CORE 1745 depends on HAS_IOMEM 1746 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1747 help 1748 Watchdog driver for the built-in hardware in Broadcom 7038 and 1749 later SoCs used in set-top boxes. BCM7038 was made public 1750 during the 2004 CES, and since then, many Broadcom chips use this 1751 watchdog block, including some cable modem chips. 1752 1753config IMGPDC_WDT 1754 tristate "Imagination Technologies PDC Watchdog Timer" 1755 depends on HAS_IOMEM 1756 depends on MIPS || COMPILE_TEST 1757 select WATCHDOG_CORE 1758 help 1759 Driver for Imagination Technologies PowerDown Controller 1760 Watchdog Timer. 1761 1762 To compile this driver as a loadable module, choose M here. 1763 The module will be called imgpdc_wdt. 1764 1765config LANTIQ_WDT 1766 tristate "Lantiq SoC watchdog" 1767 depends on LANTIQ 1768 select WATCHDOG_CORE 1769 help 1770 Hardware driver for the Lantiq SoC Watchdog Timer. 1771 1772config LOONGSON1_WDT 1773 tristate "Loongson1 SoC hardware watchdog" 1774 depends on MACH_LOONGSON32 1775 select WATCHDOG_CORE 1776 help 1777 Hardware driver for the Loongson1 SoC Watchdog Timer. 1778 1779config RALINK_WDT 1780 tristate "Ralink SoC watchdog" 1781 select WATCHDOG_CORE 1782 depends on RALINK 1783 help 1784 Hardware driver for the Ralink SoC Watchdog Timer. 1785 1786config MT7621_WDT 1787 tristate "Mediatek SoC watchdog" 1788 select WATCHDOG_CORE 1789 depends on SOC_MT7620 || SOC_MT7621 1790 help 1791 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1792 1793config PIC32_WDT 1794 tristate "Microchip PIC32 hardware watchdog" 1795 select WATCHDOG_CORE 1796 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1797 help 1798 Watchdog driver for the built in watchdog hardware in a PIC32. 1799 1800 Configuration bits must be set appropriately for the watchdog to be 1801 controlled by this driver. 1802 1803 To compile this driver as a loadable module, choose M here. 1804 The module will be called pic32-wdt. 1805 1806config PIC32_DMT 1807 tristate "Microchip PIC32 Deadman Timer" 1808 select WATCHDOG_CORE 1809 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1810 help 1811 Watchdog driver for PIC32 instruction fetch counting timer. This 1812 specific timer is typically be used in mission critical and safety 1813 critical applications, where any single failure of the software 1814 functionality and sequencing must be detected. 1815 1816 To compile this driver as a loadable module, choose M here. 1817 The module will be called pic32-dmt. 1818 1819# PARISC Architecture 1820 1821# POWERPC Architecture 1822 1823config GEF_WDT 1824 tristate "GE Watchdog Timer" 1825 depends on GE_FPGA 1826 help 1827 Watchdog timer found in a number of GE single board computers. 1828 1829config MPC5200_WDT 1830 bool "MPC52xx Watchdog Timer" 1831 depends on PPC_MPC52xx || COMPILE_TEST 1832 help 1833 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1834 1835config 8xxx_WDT 1836 tristate "MPC8xxx Platform Watchdog Timer" 1837 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1838 select WATCHDOG_CORE 1839 help 1840 This driver is for a SoC level watchdog that exists on some 1841 Freescale PowerPC processors. So far this driver supports: 1842 - MPC8xx watchdogs 1843 - MPC83xx watchdogs 1844 - MPC86xx watchdogs 1845 1846 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1847 1848config PIKA_WDT 1849 tristate "PIKA FPGA Watchdog" 1850 depends on WARP || (PPC64 && COMPILE_TEST) 1851 default y 1852 help 1853 This enables the watchdog in the PIKA FPGA. Currently used on 1854 the Warp platform. 1855 1856config BOOKE_WDT 1857 tristate "PowerPC Book-E Watchdog Timer" 1858 depends on BOOKE || 4xx 1859 select WATCHDOG_CORE 1860 help 1861 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1862 MPC85xx SOCs and the IBM PowerPC 440. 1863 1864 Please see Documentation/watchdog/watchdog-api.rst for 1865 more information. 1866 1867config BOOKE_WDT_DEFAULT_TIMEOUT 1868 int "PowerPC Book-E Watchdog Timer Default Timeout" 1869 depends on BOOKE_WDT 1870 default 38 if PPC_FSL_BOOK3E 1871 range 0 63 if PPC_FSL_BOOK3E 1872 default 3 if !PPC_FSL_BOOK3E 1873 range 0 3 if !PPC_FSL_BOOK3E 1874 help 1875 Select the default watchdog timer period to be used by the PowerPC 1876 Book-E watchdog driver. A watchdog "event" occurs when the bit 1877 position represented by this number transitions from zero to one. 1878 1879 For Freescale Book-E processors, this is a number between 0 and 63. 1880 For other Book-E processors, this is a number between 0 and 3. 1881 1882 The value can be overridden by the wdt_period command-line parameter. 1883 1884config MEN_A21_WDT 1885 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1886 select WATCHDOG_CORE 1887 depends on GPIOLIB || COMPILE_TEST 1888 help 1889 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1890 1891 The driver can also be built as a module. If so, the module will be 1892 called mena21_wdt. 1893 1894 If unsure select N here. 1895 1896# PPC64 Architecture 1897 1898config WATCHDOG_RTAS 1899 tristate "RTAS watchdog" 1900 depends on PPC_RTAS 1901 help 1902 This driver adds watchdog support for the RTAS watchdog. 1903 1904 To compile this driver as a module, choose M here. The module 1905 will be called wdrtas. 1906 1907# S390 Architecture 1908 1909config DIAG288_WATCHDOG 1910 tristate "System z diag288 Watchdog" 1911 depends on S390 1912 select WATCHDOG_CORE 1913 help 1914 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1915 provide a virtual watchdog timer to their guest that cause a 1916 user define Control Program command to be executed after a 1917 timeout. 1918 LPAR provides a very similar interface. This driver handles 1919 both. 1920 1921 To compile this driver as a module, choose M here. The module 1922 will be called diag288_wdt. 1923 1924# SUPERH (sh + sh64) Architecture 1925 1926config SH_WDT 1927 tristate "SuperH Watchdog" 1928 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1929 select WATCHDOG_CORE 1930 help 1931 This driver adds watchdog support for the integrated watchdog in the 1932 SuperH processors. If you have one of these processors and wish 1933 to have watchdog support enabled, say Y, otherwise say N. 1934 1935 As a side note, saying Y here will automatically boost HZ to 1000 1936 so that the timer has a chance to clear the overflow counter. On 1937 slower systems (such as the SH-2 and SH-3) this will likely yield 1938 some performance issues. As such, the WDT should be avoided here 1939 unless it is absolutely necessary. 1940 1941 To compile this driver as a module, choose M here: the 1942 module will be called shwdt. 1943 1944# SPARC Architecture 1945 1946# SPARC64 Architecture 1947 1948config WATCHDOG_CP1XXX 1949 tristate "CP1XXX Hardware Watchdog support" 1950 depends on SPARC64 && PCI 1951 help 1952 This is the driver for the hardware watchdog timers present on 1953 Sun Microsystems CompactPCI models CP1400 and CP1500. 1954 1955 To compile this driver as a module, choose M here: the 1956 module will be called cpwatchdog. 1957 1958 If you do not have a CompactPCI model CP1400 or CP1500, or 1959 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1960 you should say N to this option. 1961 1962config WATCHDOG_RIO 1963 tristate "RIO Hardware Watchdog support" 1964 depends on SPARC64 && PCI 1965 help 1966 Say Y here to support the hardware watchdog capability on Sun RIO 1967 machines. The watchdog timeout period is normally one minute but 1968 can be changed with a boot-time parameter. 1969 1970config WATCHDOG_SUN4V 1971 tristate "Sun4v Watchdog support" 1972 select WATCHDOG_CORE 1973 depends on SPARC64 1974 help 1975 Say Y here to support the hypervisor watchdog capability embedded 1976 in the SPARC sun4v architecture. 1977 1978 To compile this driver as a module, choose M here. The module will 1979 be called sun4v_wdt. 1980 1981# XTENSA Architecture 1982 1983# Xen Architecture 1984 1985config XEN_WDT 1986 tristate "Xen Watchdog support" 1987 depends on XEN 1988 select WATCHDOG_CORE 1989 help 1990 Say Y here to support the hypervisor watchdog capability provided 1991 by Xen 4.0 and newer. The watchdog timeout period is normally one 1992 minute but can be changed with a boot-time parameter. 1993 1994config UML_WATCHDOG 1995 tristate "UML watchdog" 1996 depends on UML || COMPILE_TEST 1997 1998# 1999# ISA-based Watchdog Cards 2000# 2001 2002comment "ISA-based Watchdog Cards" 2003 depends on ISA 2004 2005config PCWATCHDOG 2006 tristate "Berkshire Products ISA-PC Watchdog" 2007 depends on ISA 2008 help 2009 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2010 This card simply watches your kernel to make sure it doesn't freeze, 2011 and if it does, it reboots your computer after a certain amount of 2012 time. This driver is like the WDT501 driver but for different 2013 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2014 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2015 2016 To compile this driver as a module, choose M here: the 2017 module will be called pcwd. 2018 2019 Most people will say N. 2020 2021config MIXCOMWD 2022 tristate "Mixcom Watchdog" 2023 depends on ISA 2024 help 2025 This is a driver for the Mixcom hardware watchdog cards. This 2026 watchdog simply watches your kernel to make sure it doesn't freeze, 2027 and if it does, it reboots your computer after a certain amount of 2028 time. 2029 2030 To compile this driver as a module, choose M here: the 2031 module will be called mixcomwd. 2032 2033 Most people will say N. 2034 2035config WDT 2036 tristate "WDT Watchdog timer" 2037 depends on ISA 2038 help 2039 If you have a WDT500P or WDT501P watchdog board, say Y here, 2040 otherwise N. It is not possible to probe for this board, which means 2041 that you have to inform the kernel about the IO port and IRQ that 2042 is needed (you can do this via the io and irq parameters) 2043 2044 To compile this driver as a module, choose M here: the 2045 module will be called wdt. 2046 2047# 2048# PCI-based Watchdog Cards 2049# 2050 2051comment "PCI-based Watchdog Cards" 2052 depends on PCI 2053 2054config PCIPCWATCHDOG 2055 tristate "Berkshire Products PCI-PC Watchdog" 2056 depends on PCI 2057 help 2058 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2059 This card simply watches your kernel to make sure it doesn't freeze, 2060 and if it does, it reboots your computer after a certain amount of 2061 time. The card can also monitor the internal temperature of the PC. 2062 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2063 2064 To compile this driver as a module, choose M here: the 2065 module will be called pcwd_pci. 2066 2067 Most people will say N. 2068 2069config WDTPCI 2070 tristate "PCI-WDT500/501 Watchdog timer" 2071 depends on PCI 2072 help 2073 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2074 2075 If you have a PCI-WDT501 watchdog board then you can enable the 2076 temperature sensor by setting the type parameter to 501. 2077 2078 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2079 can do this via the tachometer parameter. Only do this if you have a 2080 fan tachometer actually set up. 2081 2082 To compile this driver as a module, choose M here: the 2083 module will be called wdt_pci. 2084 2085# 2086# USB-based Watchdog Cards 2087# 2088 2089comment "USB-based Watchdog Cards" 2090 depends on USB 2091 2092config USBPCWATCHDOG 2093 tristate "Berkshire Products USB-PC Watchdog" 2094 depends on USB 2095 help 2096 This is the driver for the Berkshire Products USB-PC Watchdog card. 2097 This card simply watches your kernel to make sure it doesn't freeze, 2098 and if it does, it reboots your computer after a certain amount of 2099 time. The card can also monitor the internal temperature of the PC. 2100 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2101 2102 To compile this driver as a module, choose M here: the 2103 module will be called pcwd_usb. 2104 2105 Most people will say N. 2106 2107config KEEMBAY_WATCHDOG 2108 tristate "Intel Keem Bay SoC non-secure watchdog" 2109 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2110 select WATCHDOG_CORE 2111 help 2112 This option enable support for an In-secure watchdog timer driver for 2113 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2114 count unit. An interrupt will be triggered, when the count crosses 2115 the threshold configured in the register. 2116 2117 To compile this driver as a module, choose M here: the 2118 module will be called keembay_wdt. 2119 2120endif # WATCHDOG 2121