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 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 26 also monitor NFS connections and can reboot the machine when the process 27 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 76comment "Watchdog Pretimeout Governors" 77 78config WATCHDOG_PRETIMEOUT_GOV 79 bool "Enable watchdog pretimeout governors" 80 depends on WATCHDOG_CORE 81 help 82 The option allows to select watchdog pretimeout governors. 83 84config WATCHDOG_PRETIMEOUT_GOV_SEL 85 tristate 86 depends on WATCHDOG_PRETIMEOUT_GOV 87 default m 88 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 89 90if WATCHDOG_PRETIMEOUT_GOV 91 92config WATCHDOG_PRETIMEOUT_GOV_NOOP 93 tristate "Noop watchdog pretimeout governor" 94 depends on WATCHDOG_CORE 95 default WATCHDOG_CORE 96 help 97 Noop watchdog pretimeout governor, only an informational 98 message is added to kernel log buffer. 99 100config WATCHDOG_PRETIMEOUT_GOV_PANIC 101 tristate "Panic watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Panic watchdog pretimeout governor, on watchdog pretimeout 106 event put the kernel into panic. 107 108choice 109 prompt "Default Watchdog Pretimeout Governor" 110 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 111 help 112 This option selects a default watchdog pretimeout governor. 113 The governor takes its action, if a watchdog is capable 114 to report a pretimeout event. 115 116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 117 bool "noop" 118 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 119 help 120 Use noop watchdog pretimeout governor by default. If noop 121 governor is selected by a user, write a short message to 122 the kernel log buffer and don't do any system changes. 123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 125 bool "panic" 126 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 127 help 128 Use panic watchdog pretimeout governor by default, if 129 a watchdog pretimeout event happens, consider that 130 a watchdog feeder is dead and reboot is unavoidable. 131 132endchoice 133 134endif # WATCHDOG_PRETIMEOUT_GOV 135 136# 137# General Watchdog drivers 138# 139 140comment "Watchdog Device Drivers" 141 142# Architecture Independent 143 144config SOFT_WATCHDOG 145 tristate "Software watchdog" 146 select WATCHDOG_CORE 147 help 148 A software monitoring watchdog. This will fail to reboot your system 149 from some situations that the hardware watchdog will recover 150 from. Equally it's a lot cheaper to install. 151 152 To compile this driver as a module, choose M here: the 153 module will be called softdog. 154 155config SOFT_WATCHDOG_PRETIMEOUT 156 bool "Software watchdog pretimeout governor support" 157 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 158 help 159 Enable this if you want to use pretimeout governors with the software 160 watchdog. Be aware that governors might affect the watchdog because it 161 is purely software, e.g. the panic governor will stall it! 162 163config BD70528_WATCHDOG 164 tristate "ROHM BD70528 PMIC Watchdog" 165 depends on MFD_ROHM_BD70528 166 select WATCHDOG_CORE 167 help 168 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger 169 cause system reset. 170 171 Say Y here to include support for the ROHM BD70528 watchdog. 172 Alternatively say M to compile the driver as a module, 173 which will be called bd70528_wdt. 174 175config DA9052_WATCHDOG 176 tristate "Dialog DA9052 Watchdog" 177 depends on PMIC_DA9052 || COMPILE_TEST 178 select WATCHDOG_CORE 179 help 180 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 181 cause system reset. 182 183 Say Y here to include support for the DA9052 watchdog. 184 Alternatively say M to compile the driver as a module, 185 which will be called da9052_wdt. 186 187config DA9055_WATCHDOG 188 tristate "Dialog Semiconductor DA9055 Watchdog" 189 depends on MFD_DA9055 || COMPILE_TEST 190 select WATCHDOG_CORE 191 help 192 If you say yes here you get support for watchdog on the Dialog 193 Semiconductor DA9055 PMIC. 194 195 This driver can also be built as a module. If so, the module 196 will be called da9055_wdt. 197 198config DA9063_WATCHDOG 199 tristate "Dialog DA9063 Watchdog" 200 depends on MFD_DA9063 || COMPILE_TEST 201 select WATCHDOG_CORE 202 help 203 Support for the watchdog in the DA9063 PMIC. 204 205 This driver can be built as a module. The module name is da9063_wdt. 206 207config DA9062_WATCHDOG 208 tristate "Dialog DA9062/61 Watchdog" 209 depends on MFD_DA9062 || COMPILE_TEST 210 depends on I2C 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9062 and DA9061 PMICs. 214 215 This driver can be built as a module. The module name is da9062_wdt. 216 217config GPIO_WATCHDOG 218 tristate "Watchdog device controlled through GPIO-line" 219 depends on OF_GPIO 220 select WATCHDOG_CORE 221 help 222 If you say yes here you get support for watchdog device 223 controlled through GPIO-line. 224 225config GPIO_WATCHDOG_ARCH_INITCALL 226 bool "Register the watchdog as early as possible" 227 depends on GPIO_WATCHDOG=y 228 help 229 In some situations, the default initcall level (module_init) 230 in not early enough in the boot process to avoid the watchdog 231 to be triggered. 232 If you say yes here, the initcall level would be raised to 233 arch_initcall. 234 If in doubt, say N. 235 236config MENF21BMC_WATCHDOG 237 tristate "MEN 14F021P00 BMC Watchdog" 238 depends on MFD_MENF21BMC || COMPILE_TEST 239 depends on I2C 240 select WATCHDOG_CORE 241 help 242 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 243 244 This driver can also be built as a module. If so the module 245 will be called menf21bmc_wdt. 246 247config MENZ069_WATCHDOG 248 tristate "MEN 16Z069 Watchdog" 249 depends on MCB 250 select WATCHDOG_CORE 251 help 252 Say Y here to include support for the MEN 16Z069 Watchdog. 253 254 This driver can also be built as a module. If so the module 255 will be called menz069_wdt. 256 257config TANGOX_WATCHDOG 258 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 259 select WATCHDOG_CORE 260 depends on ARCH_TANGO || COMPILE_TEST 261 depends on HAS_IOMEM 262 help 263 Support for the watchdog in Sigma Designs SMP86xx (tango3) 264 and SMP87xx (tango4) family chips. 265 266 This driver can be built as a module. The module name is tangox_wdt. 267 268config WDAT_WDT 269 tristate "ACPI Watchdog Action Table (WDAT)" 270 depends on ACPI 271 select WATCHDOG_CORE 272 select ACPI_WATCHDOG 273 help 274 This driver adds support for systems with ACPI Watchdog Action 275 Table (WDAT) table. Servers typically have this but it can be 276 found on some desktop machines as well. This driver will take 277 over the native iTCO watchdog driver found on many Intel CPUs. 278 279 To compile this driver as module, choose M here: the module will 280 be called wdat_wdt. 281 282config WM831X_WATCHDOG 283 tristate "WM831x watchdog" 284 depends on MFD_WM831X 285 select WATCHDOG_CORE 286 help 287 Support for the watchdog in the WM831x AudioPlus PMICs. When 288 the watchdog triggers the system will be reset. 289 290config WM8350_WATCHDOG 291 tristate "WM8350 watchdog" 292 depends on MFD_WM8350 293 select WATCHDOG_CORE 294 help 295 Support for the watchdog in the WM8350 AudioPlus PMIC. When 296 the watchdog triggers the system will be reset. 297 298config XILINX_WATCHDOG 299 tristate "Xilinx Watchdog timer" 300 depends on HAS_IOMEM 301 select WATCHDOG_CORE 302 help 303 Watchdog driver for the xps_timebase_wdt ip core. 304 305 To compile this driver as a module, choose M here: the 306 module will be called of_xilinx_wdt. 307 308config ZIIRAVE_WATCHDOG 309 tristate "Zodiac RAVE Watchdog Timer" 310 depends on I2C 311 select WATCHDOG_CORE 312 help 313 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 314 Processor. 315 316 To compile this driver as a module, choose M here: the 317 module will be called ziirave_wdt. 318 319config RAVE_SP_WATCHDOG 320 tristate "RAVE SP Watchdog timer" 321 depends on RAVE_SP_CORE 322 depends on NVMEM || !NVMEM 323 select WATCHDOG_CORE 324 help 325 Support for the watchdog on RAVE SP device. 326 327config MLX_WDT 328 tristate "Mellanox Watchdog" 329 depends on MELLANOX_PLATFORM 330 select WATCHDOG_CORE 331 select REGMAP 332 help 333 This is the driver for the hardware watchdog on Mellanox systems. 334 If you are going to use it, say Y here, otherwise N. 335 This driver can be used together with the watchdog daemon. 336 It can also watch your kernel to make sure it doesn't freeze, 337 and if it does, it reboots your system after a certain amount of 338 time. 339 340 To compile this driver as a module, choose M here: the 341 module will be called mlx-wdt. 342 343# ALPHA Architecture 344 345# ARM Architecture 346 347config ARM_SP805_WATCHDOG 348 tristate "ARM SP805 Watchdog" 349 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 350 select WATCHDOG_CORE 351 help 352 ARM Primecell SP805 Watchdog timer. This will reboot your system when 353 the timeout is reached. 354 355config ARM_SBSA_WATCHDOG 356 tristate "ARM SBSA Generic Watchdog" 357 depends on ARM64 358 depends on ARM_ARCH_TIMER 359 select WATCHDOG_CORE 360 help 361 ARM SBSA Generic Watchdog has two stage timeouts: 362 the first signal (WS0) is for alerting the system by interrupt, 363 the second one (WS1) is a real hardware reset. 364 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 365 366 This driver can operate ARM SBSA Generic Watchdog as a single stage 367 or a two stages watchdog, it depends on the module parameter "action". 368 369 Note: the maximum timeout in the two stages mode is half of that in 370 the single stage mode. 371 372 To compile this driver as module, choose M here: The module 373 will be called sbsa_gwdt. 374 375config ARMADA_37XX_WATCHDOG 376 tristate "Armada 37xx watchdog" 377 depends on ARCH_MVEBU || COMPILE_TEST 378 select MFD_SYSCON 379 select WATCHDOG_CORE 380 help 381 Say Y here to include support for the watchdog timer found on 382 Marvell Armada 37xx SoCs. 383 To compile this driver as a module, choose M here: the 384 module will be called armada_37xx_wdt. 385 386config ASM9260_WATCHDOG 387 tristate "Alphascale ASM9260 watchdog" 388 depends on MACH_ASM9260 || COMPILE_TEST 389 depends on OF 390 select WATCHDOG_CORE 391 select RESET_CONTROLLER 392 help 393 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 394 system when the timeout is reached. 395 396config AT91RM9200_WATCHDOG 397 tristate "AT91RM9200 watchdog" 398 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 399 help 400 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 401 system when the timeout is reached. 402 403config AT91SAM9X_WATCHDOG 404 tristate "AT91SAM9X / AT91CAP9 watchdog" 405 depends on ARCH_AT91 || COMPILE_TEST 406 select WATCHDOG_CORE 407 help 408 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 409 reboot your system when the timeout is reached. 410 411config SAMA5D4_WATCHDOG 412 tristate "Atmel SAMA5D4 Watchdog Timer" 413 depends on ARCH_AT91 || COMPILE_TEST 414 select WATCHDOG_CORE 415 help 416 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 417 Its Watchdog Timer Mode Register can be written more than once. 418 This will reboot your system when the timeout is reached. 419 420config CADENCE_WATCHDOG 421 tristate "Cadence Watchdog Timer" 422 depends on HAS_IOMEM 423 select WATCHDOG_CORE 424 help 425 Say Y here if you want to include support for the watchdog 426 timer in the Xilinx Zynq. 427 428config 21285_WATCHDOG 429 tristate "DC21285 watchdog" 430 depends on FOOTBRIDGE 431 help 432 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 433 here if you wish to use this. Alternatively say M to compile the 434 driver as a module, which will be called wdt285. 435 436 This driver does not work on all machines. In particular, early CATS 437 boards have hardware problems that will cause the machine to simply 438 lock up if the watchdog fires. 439 440 "If in doubt, leave it out" - say N. 441 442config 977_WATCHDOG 443 tristate "NetWinder WB83C977 watchdog" 444 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 445 help 446 Say Y here to include support for the WB977 watchdog included in 447 NetWinder machines. Alternatively say M to compile the driver as 448 a module, which will be called wdt977. 449 450 Not sure? It's safe to say N. 451 452config FTWDT010_WATCHDOG 453 tristate "Faraday Technology FTWDT010 watchdog" 454 depends on ARM || COMPILE_TEST 455 select WATCHDOG_CORE 456 default ARCH_GEMINI 457 help 458 Say Y here if to include support for the Faraday Technology 459 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 460 family of devices. 461 462 To compile this driver as a module, choose M here: the 463 module will be called ftwdt010_wdt. 464 465config IXP4XX_WATCHDOG 466 tristate "IXP4xx Watchdog" 467 depends on ARCH_IXP4XX 468 help 469 Say Y here if to include support for the watchdog timer 470 in the Intel IXP4xx network processors. This driver can 471 be built as a module by choosing M. The module will 472 be called ixp4xx_wdt. 473 474 Note: The internal IXP4xx watchdog does a soft CPU reset 475 which doesn't reset any peripherals. There are circumstances 476 where the watchdog will fail to reset the board correctly 477 (e.g., if the boot ROM is in an unreadable state). 478 479 Say N if you are unsure. 480 481config S3C2410_WATCHDOG 482 tristate "S3C2410 Watchdog" 483 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \ 484 COMPILE_TEST 485 select WATCHDOG_CORE 486 select MFD_SYSCON if ARCH_EXYNOS 487 help 488 Watchdog timer block in the Samsung SoCs. This will reboot 489 the system when the timer expires with the watchdog enabled. 490 491 The driver is limited by the speed of the system's PCLK 492 signal, so with reasonably fast systems (PCLK around 50-66MHz) 493 then watchdog intervals of over approximately 20seconds are 494 unavailable. 495 496 The driver can be built as a module by choosing M, and will 497 be called s3c2410_wdt 498 499config SA1100_WATCHDOG 500 tristate "SA1100/PXA2xx watchdog" 501 depends on ARCH_SA1100 || ARCH_PXA 502 help 503 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 504 reboot your system when timeout is reached. 505 506 NOTE: once enabled, this timer cannot be disabled. 507 508 To compile this driver as a module, choose M here: the 509 module will be called sa1100_wdt. 510 511config DW_WATCHDOG 512 tristate "Synopsys DesignWare watchdog" 513 depends on HAS_IOMEM 514 select WATCHDOG_CORE 515 help 516 Say Y here if to include support for the Synopsys DesignWare 517 watchdog timer found in many chips. 518 To compile this driver as a module, choose M here: the 519 module will be called dw_wdt. 520 521config EP93XX_WATCHDOG 522 tristate "EP93xx Watchdog" 523 depends on ARCH_EP93XX || COMPILE_TEST 524 select WATCHDOG_CORE 525 help 526 Say Y here if to include support for the watchdog timer 527 embedded in the Cirrus Logic EP93xx family of devices. 528 529 To compile this driver as a module, choose M here: the 530 module will be called ep93xx_wdt. 531 532config OMAP_WATCHDOG 533 tristate "OMAP Watchdog" 534 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 535 select WATCHDOG_CORE 536 help 537 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 538 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 539 540config PNX4008_WATCHDOG 541 tristate "LPC32XX Watchdog" 542 depends on ARCH_LPC32XX || COMPILE_TEST 543 select WATCHDOG_CORE 544 help 545 Say Y here if to include support for the watchdog timer 546 in the LPC32XX processor. 547 This driver can be built as a module by choosing M. The module 548 will be called pnx4008_wdt. 549 550 Say N if you are unsure. 551 552config IOP_WATCHDOG 553 tristate "IOP Watchdog" 554 depends on ARCH_IOP13XX 555 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 556 help 557 Say Y here if to include support for the watchdog timer 558 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 559 be built as a module by choosing M. The module will 560 be called iop_wdt. 561 562 Note: The IOP13XX watchdog does an Internal Bus Reset which will 563 affect both cores and the peripherals of the IOP. The ATU-X 564 and/or ATUe configuration registers will remain intact, but if 565 operating as an Root Complex and/or Central Resource, the PCI-X 566 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 567 568config DAVINCI_WATCHDOG 569 tristate "DaVinci watchdog" 570 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 571 select WATCHDOG_CORE 572 help 573 Say Y here if to include support for the watchdog timer 574 in the DaVinci DM644x/DM646x or Keystone processors. 575 To compile this driver as a module, choose M here: the 576 module will be called davinci_wdt. 577 578 NOTE: once enabled, this timer cannot be disabled. 579 Say N if you are unsure. 580 581config K3_RTI_WATCHDOG 582 tristate "Texas Instruments K3 RTI watchdog" 583 depends on ARCH_K3 || COMPILE_TEST 584 select WATCHDOG_CORE 585 help 586 Say Y here if you want to include support for the K3 watchdog 587 timer (RTI module) available in the K3 generation of processors. 588 589config ORION_WATCHDOG 590 tristate "Orion watchdog" 591 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 592 depends on ARM 593 select WATCHDOG_CORE 594 help 595 Say Y here if to include support for the watchdog timer 596 in the Marvell Orion5x and Kirkwood ARM SoCs. 597 To compile this driver as a module, choose M here: the 598 module will be called orion_wdt. 599 600config RN5T618_WATCHDOG 601 tristate "Ricoh RN5T618 watchdog" 602 depends on MFD_RN5T618 || COMPILE_TEST 603 select WATCHDOG_CORE 604 help 605 If you say yes here you get support for watchdog on the Ricoh 606 RN5T618 PMIC. 607 608 This driver can also be built as a module. If so, the module 609 will be called rn5t618_wdt. 610 611config SUNXI_WATCHDOG 612 tristate "Allwinner SoCs watchdog support" 613 depends on ARCH_SUNXI || COMPILE_TEST 614 select WATCHDOG_CORE 615 help 616 Say Y here to include support for the watchdog timer 617 in Allwinner SoCs. 618 To compile this driver as a module, choose M here: the 619 module will be called sunxi_wdt. 620 621config COH901327_WATCHDOG 622 bool "ST-Ericsson COH 901 327 watchdog" 623 depends on ARCH_U300 || (ARM && COMPILE_TEST) 624 default y if MACH_U300 625 select WATCHDOG_CORE 626 help 627 Say Y here to include Watchdog timer support for the 628 watchdog embedded into the ST-Ericsson U300 series platforms. 629 This watchdog is used to reset the system and thus cannot be 630 compiled as a module. 631 632config NPCM7XX_WATCHDOG 633 tristate "Nuvoton NPCM750 watchdog" 634 depends on ARCH_NPCM || COMPILE_TEST 635 default y if ARCH_NPCM7XX 636 select WATCHDOG_CORE 637 help 638 Say Y here to include Watchdog timer support for the 639 watchdog embedded into the NPCM7xx. 640 This watchdog is used to reset the system and thus cannot be 641 compiled as a module. 642 643config TWL4030_WATCHDOG 644 tristate "TWL4030 Watchdog" 645 depends on TWL4030_CORE 646 select WATCHDOG_CORE 647 help 648 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 649 watchdog timer support for TWL4030 chips. 650 651config STMP3XXX_RTC_WATCHDOG 652 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 653 depends on RTC_DRV_STMP || COMPILE_TEST 654 select WATCHDOG_CORE 655 help 656 Say Y here to include support for the watchdog timer inside 657 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 658 To compile this driver as a module, choose M here: the 659 module will be called stmp3xxx_rtc_wdt. 660 661config TS4800_WATCHDOG 662 tristate "TS-4800 Watchdog" 663 depends on HAS_IOMEM && OF 664 depends on SOC_IMX51 || COMPILE_TEST 665 select WATCHDOG_CORE 666 select MFD_SYSCON 667 help 668 Technologic Systems TS-4800 has watchdog timer implemented in 669 an external FPGA. Say Y here if you want to support for the 670 watchdog timer on TS-4800 board. 671 672config TS72XX_WATCHDOG 673 tristate "TS-72XX SBC Watchdog" 674 depends on MACH_TS72XX || COMPILE_TEST 675 select WATCHDOG_CORE 676 help 677 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 678 watchdog timer implemented in a external CPLD chip. Say Y here 679 if you want to support for the watchdog timer on TS-72XX boards. 680 681 To compile this driver as a module, choose M here: the 682 module will be called ts72xx_wdt. 683 684config MAX63XX_WATCHDOG 685 tristate "Max63xx watchdog" 686 depends on HAS_IOMEM 687 select WATCHDOG_CORE 688 help 689 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 690 691config MAX77620_WATCHDOG 692 tristate "Maxim Max77620 Watchdog Timer" 693 depends on MFD_MAX77620 || COMPILE_TEST 694 select WATCHDOG_CORE 695 help 696 This is the driver for the Max77620 watchdog timer. 697 Say 'Y' here to enable the watchdog timer support for 698 MAX77620 chips. To compile this driver as a module, 699 choose M here: the module will be called max77620_wdt. 700 701config IMX2_WDT 702 tristate "IMX2+ Watchdog" 703 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 704 select REGMAP_MMIO 705 select WATCHDOG_CORE 706 help 707 This is the driver for the hardware watchdog 708 on the Freescale IMX2 and later processors. 709 If you have one of these processors and wish to have 710 watchdog support enabled, say Y, otherwise say N. 711 712 To compile this driver as a module, choose M here: the 713 module will be called imx2_wdt. 714 715config IMX_SC_WDT 716 tristate "IMX SC Watchdog" 717 depends on HAVE_ARM_SMCCC 718 depends on IMX_SCU 719 select WATCHDOG_CORE 720 help 721 This is the driver for the system controller watchdog 722 on the NXP i.MX SoCs with system controller inside, the 723 watchdog driver will call ARM SMC API and trap into 724 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 725 will request system controller to execute the operations. 726 If you have one of these processors and wish to have 727 watchdog support enabled, say Y, otherwise say N. 728 729 To compile this driver as a module, choose M here: the 730 module will be called imx_sc_wdt. 731 732config IMX7ULP_WDT 733 tristate "IMX7ULP Watchdog" 734 depends on ARCH_MXC || COMPILE_TEST 735 select WATCHDOG_CORE 736 help 737 This is the driver for the hardware watchdog on the Freescale 738 IMX7ULP and later processors. If you have one of these 739 processors and wish to have watchdog support enabled, 740 say Y, otherwise say N. 741 742 To compile this driver as a module, choose M here: the 743 module will be called imx7ulp_wdt. 744 745config UX500_WATCHDOG 746 tristate "ST-Ericsson Ux500 watchdog" 747 depends on MFD_DB8500_PRCMU 748 select WATCHDOG_CORE 749 default y 750 help 751 Say Y here to include Watchdog timer support for the watchdog 752 existing in the prcmu of ST-Ericsson Ux500 series platforms. 753 754 To compile this driver as a module, choose M here: the 755 module will be called ux500_wdt. 756 757config RETU_WATCHDOG 758 tristate "Retu watchdog" 759 depends on MFD_RETU 760 select WATCHDOG_CORE 761 help 762 Retu watchdog driver for Nokia Internet Tablets (770, N800, 763 N810). At least on N800 the watchdog cannot be disabled, so 764 this driver is essential and you should enable it. 765 766 To compile this driver as a module, choose M here: the 767 module will be called retu_wdt. 768 769config MOXART_WDT 770 tristate "MOXART watchdog" 771 depends on ARCH_MOXART || COMPILE_TEST 772 help 773 Say Y here to include Watchdog timer support for the watchdog 774 existing on the MOXA ART SoC series platforms. 775 776 To compile this driver as a module, choose M here: the 777 module will be called moxart_wdt. 778 779config SIRFSOC_WATCHDOG 780 tristate "SiRFSOC watchdog" 781 depends on ARCH_SIRF || COMPILE_TEST 782 select WATCHDOG_CORE 783 default y 784 help 785 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 786 the watchdog triggers the system will be reset. 787 788config ST_LPC_WATCHDOG 789 tristate "STMicroelectronics LPC Watchdog" 790 depends on ARCH_STI || COMPILE_TEST 791 depends on OF 792 select WATCHDOG_CORE 793 help 794 Say Y here to include STMicroelectronics Low Power Controller 795 (LPC) based Watchdog timer support. 796 797 To compile this driver as a module, choose M here: the 798 module will be called st_lpc_wdt. 799 800config TEGRA_WATCHDOG 801 tristate "Tegra watchdog" 802 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 803 select WATCHDOG_CORE 804 help 805 Say Y here to include support for the watchdog timer 806 embedded in NVIDIA Tegra SoCs. 807 808 To compile this driver as a module, choose M here: the 809 module will be called tegra_wdt. 810 811config QCOM_WDT 812 tristate "QCOM watchdog" 813 depends on HAS_IOMEM 814 depends on ARCH_QCOM || COMPILE_TEST 815 select WATCHDOG_CORE 816 help 817 Say Y here to include Watchdog timer support for the watchdog found 818 on QCOM chipsets. Currently supported targets are the MSM8960, 819 APQ8064, and IPQ8064. 820 821 To compile this driver as a module, choose M here: the 822 module will be called qcom_wdt. 823 824config MESON_GXBB_WATCHDOG 825 tristate "Amlogic Meson GXBB SoCs watchdog support" 826 depends on ARCH_MESON || COMPILE_TEST 827 select WATCHDOG_CORE 828 help 829 Say Y here to include support for the watchdog timer 830 in Amlogic Meson GXBB SoCs. 831 To compile this driver as a module, choose M here: the 832 module will be called meson_gxbb_wdt. 833 834config MESON_WATCHDOG 835 tristate "Amlogic Meson SoCs watchdog support" 836 depends on ARCH_MESON || COMPILE_TEST 837 select WATCHDOG_CORE 838 help 839 Say Y here to include support for the watchdog timer 840 in Amlogic Meson SoCs. 841 To compile this driver as a module, choose M here: the 842 module will be called meson_wdt. 843 844config MEDIATEK_WATCHDOG 845 tristate "Mediatek SoCs watchdog support" 846 depends on ARCH_MEDIATEK || COMPILE_TEST 847 select WATCHDOG_CORE 848 select RESET_CONTROLLER 849 help 850 Say Y here to include support for the watchdog timer 851 in Mediatek SoCs. 852 To compile this driver as a module, choose M here: the 853 module will be called mtk_wdt. 854 855config DIGICOLOR_WATCHDOG 856 tristate "Conexant Digicolor SoCs watchdog support" 857 depends on ARCH_DIGICOLOR || COMPILE_TEST 858 select WATCHDOG_CORE 859 help 860 Say Y here to include support for the watchdog timer 861 in Conexant Digicolor SoCs. 862 To compile this driver as a module, choose M here: the 863 module will be called digicolor_wdt. 864 865config ARM_SMC_WATCHDOG 866 tristate "ARM Secure Monitor Call based watchdog support" 867 depends on ARM || ARM64 868 depends on OF 869 depends on HAVE_ARM_SMCCC 870 select WATCHDOG_CORE 871 help 872 Say Y here to include support for a watchdog timer 873 implemented by the EL3 Secure Monitor on ARM platforms. 874 Requires firmware support. 875 To compile this driver as a module, choose M here: the 876 module will be called arm_smc_wdt. 877 878config LPC18XX_WATCHDOG 879 tristate "LPC18xx/43xx Watchdog" 880 depends on ARCH_LPC18XX || COMPILE_TEST 881 depends on HAS_IOMEM 882 select WATCHDOG_CORE 883 help 884 Say Y here if to include support for the watchdog timer 885 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 886 processors. 887 To compile this driver as a module, choose M here: the 888 module will be called lpc18xx_wdt. 889 890config ATLAS7_WATCHDOG 891 tristate "CSRatlas7 watchdog" 892 depends on ARCH_ATLAS7 || COMPILE_TEST 893 help 894 Say Y here to include Watchdog timer support for the watchdog 895 existing on the CSRatlas7 series platforms. 896 897 To compile this driver as a module, choose M here: the 898 module will be called atlas7_wdt. 899 900config RENESAS_WDT 901 tristate "Renesas WDT Watchdog" 902 depends on ARCH_RENESAS || COMPILE_TEST 903 select WATCHDOG_CORE 904 help 905 This driver adds watchdog support for the integrated watchdogs in the 906 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 907 908config RENESAS_RZAWDT 909 tristate "Renesas RZ/A WDT Watchdog" 910 depends on ARCH_RENESAS || COMPILE_TEST 911 select WATCHDOG_CORE 912 help 913 This driver adds watchdog support for the integrated watchdogs in the 914 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 915 916config ASPEED_WATCHDOG 917 tristate "Aspeed BMC watchdog support" 918 depends on ARCH_ASPEED || COMPILE_TEST 919 select WATCHDOG_CORE 920 help 921 Say Y here to include support for the watchdog timer 922 in Aspeed BMC SoCs. 923 924 This driver is required to reboot the SoC. 925 926 To compile this driver as a module, choose M here: the 927 module will be called aspeed_wdt. 928 929config ZX2967_WATCHDOG 930 tristate "ZTE zx2967 SoCs watchdog support" 931 depends on ARCH_ZX 932 select WATCHDOG_CORE 933 help 934 Say Y here to include support for the watchdog timer 935 in ZTE zx2967 SoCs. 936 To compile this driver as a module, choose M here: the 937 module will be called zx2967_wdt. 938 939config STM32_WATCHDOG 940 tristate "STM32 Independent WatchDoG (IWDG) support" 941 depends on ARCH_STM32 942 select WATCHDOG_CORE 943 default y 944 help 945 Say Y here to include support for the watchdog timer 946 in stm32 SoCs. 947 948 To compile this driver as a module, choose M here: the 949 module will be called stm32_iwdg. 950 951config STPMIC1_WATCHDOG 952 tristate "STPMIC1 PMIC watchdog support" 953 depends on MFD_STPMIC1 954 select WATCHDOG_CORE 955 help 956 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 957 If the watchdog timer expires, stpmic1 will shut down all its power 958 supplies. 959 960 To compile this driver as a module, choose M here: the 961 module will be called spmic1_wdt. 962 963config UNIPHIER_WATCHDOG 964 tristate "UniPhier watchdog support" 965 depends on ARCH_UNIPHIER || COMPILE_TEST 966 depends on OF && MFD_SYSCON 967 select WATCHDOG_CORE 968 help 969 Say Y here to include support watchdog timer embedded 970 into the UniPhier system. 971 972 To compile this driver as a module, choose M here: the 973 module will be called uniphier_wdt. 974 975config RTD119X_WATCHDOG 976 bool "Realtek RTD119x/RTD129x watchdog support" 977 depends on ARCH_REALTEK || COMPILE_TEST 978 depends on OF 979 select WATCHDOG_CORE 980 default ARCH_REALTEK 981 help 982 Say Y here to include support for the watchdog timer in 983 Realtek RTD1295 SoCs. 984 985config SPRD_WATCHDOG 986 tristate "Spreadtrum watchdog support" 987 depends on ARCH_SPRD || COMPILE_TEST 988 select WATCHDOG_CORE 989 help 990 Say Y here to include watchdog timer supported 991 by Spreadtrum system. 992 993config PM8916_WATCHDOG 994 tristate "QCOM PM8916 pmic watchdog" 995 depends on OF && MFD_SPMI_PMIC 996 select WATCHDOG_CORE 997 help 998 Say Y here to include support watchdog timer embedded into the 999 pm8916 module. 1000 1001# X86 (i386 + ia64 + x86_64) Architecture 1002 1003config ACQUIRE_WDT 1004 tristate "Acquire SBC Watchdog Timer" 1005 depends on X86 1006 help 1007 This is the driver for the hardware watchdog on Single Board 1008 Computers produced by Acquire Inc (and others). This watchdog 1009 simply watches your kernel to make sure it doesn't freeze, and if 1010 it does, it reboots your computer after a certain amount of time. 1011 1012 To compile this driver as a module, choose M here: the 1013 module will be called acquirewdt. 1014 1015 Most people will say N. 1016 1017config ADVANTECH_WDT 1018 tristate "Advantech SBC Watchdog Timer" 1019 depends on X86 1020 help 1021 If you are configuring a Linux kernel for the Advantech single-board 1022 computer, say `Y' here to support its built-in watchdog timer 1023 feature. More information can be found at 1024 <https://www.advantech.com.tw/products/> 1025 1026config ALIM1535_WDT 1027 tristate "ALi M1535 PMU Watchdog Timer" 1028 depends on X86 && PCI 1029 help 1030 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1031 1032 To compile this driver as a module, choose M here: the 1033 module will be called alim1535_wdt. 1034 1035 Most people will say N. 1036 1037config ALIM7101_WDT 1038 tristate "ALi M7101 PMU Computer Watchdog" 1039 depends on PCI 1040 help 1041 This is the driver for the hardware watchdog on the ALi M7101 PMU 1042 as used in the x86 Cobalt servers and also found in some 1043 SPARC Netra servers too. 1044 1045 To compile this driver as a module, choose M here: the 1046 module will be called alim7101_wdt. 1047 1048 Most people will say N. 1049 1050config EBC_C384_WDT 1051 tristate "WinSystems EBC-C384 Watchdog Timer" 1052 depends on X86 1053 select ISA_BUS_API 1054 select WATCHDOG_CORE 1055 help 1056 Enables watchdog timer support for the watchdog timer on the 1057 WinSystems EBC-C384 motherboard. The timeout may be configured via 1058 the timeout module parameter. 1059 1060config F71808E_WDT 1061 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1062 depends on X86 1063 help 1064 This is the driver for the hardware watchdog on the Fintek F71808E, 1065 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1066 F81866 Super I/O controllers. 1067 1068 You can compile this driver directly into the kernel, or use 1069 it as a module. The module will be called f71808e_wdt. 1070 1071config SP5100_TCO 1072 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1073 depends on X86 && PCI 1074 select WATCHDOG_CORE 1075 help 1076 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1077 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1078 the machine after its expiration. The expiration time can be 1079 configured with the "heartbeat" parameter. 1080 1081 To compile this driver as a module, choose M here: the 1082 module will be called sp5100_tco. 1083 1084config GEODE_WDT 1085 tristate "AMD Geode CS5535/CS5536 Watchdog" 1086 depends on CS5535_MFGPT 1087 help 1088 This driver enables a watchdog capability built into the 1089 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1090 processors. This watchdog watches your kernel to make sure 1091 it doesn't freeze, and if it does, it reboots your computer after 1092 a certain amount of time. 1093 1094 You can compile this driver directly into the kernel, or use 1095 it as a module. The module will be called geodewdt. 1096 1097config SC520_WDT 1098 tristate "AMD Elan SC520 processor Watchdog" 1099 depends on MELAN || COMPILE_TEST 1100 help 1101 This is the driver for the hardware watchdog built in to the 1102 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1103 This watchdog simply watches your kernel to make sure it doesn't 1104 freeze, and if it does, it reboots your computer after a certain 1105 amount of time. 1106 1107 You can compile this driver directly into the kernel, or use 1108 it as a module. The module will be called sc520_wdt. 1109 1110config SBC_FITPC2_WATCHDOG 1111 tristate "Compulab SBC-FITPC2 watchdog" 1112 depends on X86 1113 help 1114 This is the driver for the built-in watchdog timer on the fit-PC2, 1115 fit-PC2i, CM-iAM single-board computers made by Compulab. 1116 1117 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1118 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1119 1120 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1121 so system will not be restarted while user in BIOS setup. 1122 1123 Once watchdog was enabled the system will be restarted every 1124 "Watchdog Timer Value" period, so to prevent it user can restart or 1125 disable the watchdog. 1126 1127 To compile this driver as a module, choose M here: the 1128 module will be called sbc_fitpc2_wdt. 1129 1130 Most people will say N. 1131 1132config EUROTECH_WDT 1133 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1134 depends on X86 1135 help 1136 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1137 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1138 information are at <http://www.eurotech.it/>. 1139 1140config IB700_WDT 1141 tristate "IB700 SBC Watchdog Timer" 1142 depends on X86 1143 help 1144 This is the driver for the hardware watchdog on the IB700 Single 1145 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1146 simply watches your kernel to make sure it doesn't freeze, and if 1147 it does, it reboots your computer after a certain amount of time. 1148 1149 This driver is like the WDT501 driver but for slightly different hardware. 1150 1151 To compile this driver as a module, choose M here: the 1152 module will be called ib700wdt. 1153 1154 Most people will say N. 1155 1156config IBMASR 1157 tristate "IBM Automatic Server Restart" 1158 depends on X86 1159 help 1160 This is the driver for the IBM Automatic Server Restart watchdog 1161 timer built-in into some eServer xSeries machines. 1162 1163 To compile this driver as a module, choose M here: the 1164 module will be called ibmasr. 1165 1166config WAFER_WDT 1167 tristate "ICP Single Board Computer Watchdog Timer" 1168 depends on X86 1169 help 1170 This is a driver for the hardware watchdog on the ICP Single 1171 Board Computer. This driver is working on (at least) the following 1172 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1173 1174 To compile this driver as a module, choose M here: the 1175 module will be called wafer5823wdt. 1176 1177config I6300ESB_WDT 1178 tristate "Intel 6300ESB Timer/Watchdog" 1179 depends on PCI 1180 select WATCHDOG_CORE 1181 help 1182 Hardware driver for the watchdog timer built into the Intel 1183 6300ESB controller hub. 1184 1185 To compile this driver as a module, choose M here: the 1186 module will be called i6300esb. 1187 1188config IE6XX_WDT 1189 tristate "Intel Atom E6xx Watchdog" 1190 depends on X86 && PCI 1191 select WATCHDOG_CORE 1192 select MFD_CORE 1193 select LPC_SCH 1194 help 1195 Hardware driver for the watchdog timer built into the Intel 1196 Atom E6XX (TunnelCreek) processor. 1197 1198 To compile this driver as a module, choose M here: the 1199 module will be called ie6xx_wdt. 1200 1201config INTEL_SCU_WATCHDOG 1202 bool "Intel SCU Watchdog for Mobile Platforms" 1203 depends on X86_INTEL_MID 1204 help 1205 Hardware driver for the watchdog time built into the Intel SCU 1206 for Intel Mobile Platforms. 1207 1208 To compile this driver as a module, choose M here. 1209 1210config INTEL_MID_WATCHDOG 1211 tristate "Intel MID Watchdog Timer" 1212 depends on X86_INTEL_MID 1213 select WATCHDOG_CORE 1214 help 1215 Watchdog timer driver built into the Intel SCU for Intel MID 1216 Platforms. 1217 1218 This driver currently supports only the watchdog evolution 1219 implementation in SCU, available for Merrifield generation. 1220 1221 To compile this driver as a module, choose M here. 1222 1223config ITCO_WDT 1224 tristate "Intel TCO Timer/Watchdog" 1225 depends on (X86 || IA64) && PCI 1226 select WATCHDOG_CORE 1227 depends on I2C || I2C=n 1228 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1229 select LPC_ICH if !EXPERT 1230 select I2C_I801 if !EXPERT && I2C 1231 help 1232 Hardware driver for the intel TCO timer based watchdog devices. 1233 These drivers are included in the Intel 82801 I/O Controller 1234 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1235 controller hub. 1236 1237 The TCO (Total Cost of Ownership) timer is a watchdog timer 1238 that will reboot the machine after its second expiration. The 1239 expiration time can be configured with the "heartbeat" parameter. 1240 1241 On some motherboards the driver may fail to reset the chipset's 1242 NO_REBOOT flag which prevents the watchdog from rebooting the 1243 machine. If this is the case you will get a kernel message like 1244 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1245 1246 To compile this driver as a module, choose M here: the 1247 module will be called iTCO_wdt. 1248 1249config ITCO_VENDOR_SUPPORT 1250 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1251 depends on ITCO_WDT 1252 help 1253 Add vendor specific support to the intel TCO timer based watchdog 1254 devices. At this moment we only have additional support for some 1255 SuperMicro Inc. motherboards. 1256 1257config IT8712F_WDT 1258 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1259 depends on X86 1260 help 1261 This is the driver for the built-in watchdog timer on the IT8712F 1262 Super I/0 chipset used on many motherboards. 1263 1264 If the driver does not work, then make sure that the game port in 1265 the BIOS is enabled. 1266 1267 To compile this driver as a module, choose M here: the 1268 module will be called it8712f_wdt. 1269 1270config IT87_WDT 1271 tristate "IT87 Watchdog Timer" 1272 depends on X86 1273 select WATCHDOG_CORE 1274 help 1275 This is the driver for the hardware watchdog on the ITE IT8607, 1276 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1277 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1278 IT8783 Super I/O chips. 1279 1280 This watchdog simply watches your kernel to make sure it doesn't 1281 freeze, and if it does, it reboots your computer after a certain 1282 amount of time. 1283 1284 To compile this driver as a module, choose M here: the module will 1285 be called it87_wdt. 1286 1287config HP_WATCHDOG 1288 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1289 select WATCHDOG_CORE 1290 depends on X86 && PCI 1291 help 1292 A software monitoring watchdog and NMI handling driver. This driver 1293 will detect lockups and provide a stack trace. This is a driver that 1294 will only load on an HP ProLiant system with a minimum of iLO2 support. 1295 To compile this driver as a module, choose M here: the module will be 1296 called hpwdt. 1297 1298config HPWDT_NMI_DECODING 1299 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1300 depends on HP_WATCHDOG 1301 default y 1302 help 1303 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1304 "Generate NMI to System" virtual button. When an NMI is claimed 1305 by the driver, panic is called. 1306 1307config KEMPLD_WDT 1308 tristate "Kontron COM Watchdog Timer" 1309 depends on MFD_KEMPLD 1310 select WATCHDOG_CORE 1311 help 1312 Support for the PLD watchdog on some Kontron ETX and COMexpress 1313 (ETXexpress) modules 1314 1315 This driver can also be built as a module. If so, the module will be 1316 called kempld_wdt. 1317 1318config SC1200_WDT 1319 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1320 depends on X86 1321 help 1322 This is a driver for National Semiconductor PC87307/PC97307 hardware 1323 watchdog cards as found on the SC1200. This watchdog is mainly used 1324 for power management purposes and can be used to power down the device 1325 during inactivity periods (includes interrupt activity monitoring). 1326 1327 To compile this driver as a module, choose M here: the 1328 module will be called sc1200wdt. 1329 1330 Most people will say N. 1331 1332config SCx200_WDT 1333 tristate "National Semiconductor SCx200 Watchdog" 1334 depends on SCx200 && PCI 1335 help 1336 Enable the built-in watchdog timer support on the National 1337 Semiconductor SCx200 processors. 1338 1339 If compiled as a module, it will be called scx200_wdt. 1340 1341config PC87413_WDT 1342 tristate "NS PC87413 watchdog" 1343 depends on X86 1344 help 1345 This is the driver for the hardware watchdog on the PC87413 chipset 1346 This watchdog simply watches your kernel to make sure it doesn't 1347 freeze, and if it does, it reboots your computer after a certain 1348 amount of time. 1349 1350 To compile this driver as a module, choose M here: the 1351 module will be called pc87413_wdt. 1352 1353 Most people will say N. 1354 1355config NV_TCO 1356 tristate "nVidia TCO Timer/Watchdog" 1357 depends on X86 && PCI 1358 help 1359 Hardware driver for the TCO timer built into the nVidia Hub family 1360 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1361 watchdog timer that will reboot the machine after its second 1362 expiration. The expiration time can be configured with the 1363 "heartbeat" parameter. 1364 1365 On some motherboards the driver may fail to reset the chipset's 1366 NO_REBOOT flag which prevents the watchdog from rebooting the 1367 machine. If this is the case you will get a kernel message like 1368 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1369 1370 To compile this driver as a module, choose M here: the 1371 module will be called nv_tco. 1372 1373config RDC321X_WDT 1374 tristate "RDC R-321x SoC watchdog" 1375 depends on X86_RDC321X || COMPILE_TEST 1376 depends on PCI 1377 help 1378 This is the driver for the built in hardware watchdog 1379 in the RDC R-321x SoC. 1380 1381 To compile this driver as a module, choose M here: the 1382 module will be called rdc321x_wdt. 1383 1384config 60XX_WDT 1385 tristate "SBC-60XX Watchdog Timer" 1386 depends on X86 1387 help 1388 This driver can be used with the watchdog timer found on some 1389 single board computers, namely the 6010 PII based computer. 1390 It may well work with other cards. It reads port 0x443 to enable 1391 and re-set the watchdog timer, and reads port 0x45 to disable 1392 the watchdog. If you have a card that behave in similar ways, 1393 you can probably make this driver work with your card as well. 1394 1395 You can compile this driver directly into the kernel, or use 1396 it as a module. The module will be called sbc60xxwdt. 1397 1398config SBC8360_WDT 1399 tristate "SBC8360 Watchdog Timer" 1400 depends on X86_32 1401 help 1402 1403 This is the driver for the hardware watchdog on the SBC8360 Single 1404 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1405 1406 To compile this driver as a module, choose M here: the 1407 module will be called sbc8360. 1408 1409 Most people will say N. 1410 1411config SBC7240_WDT 1412 tristate "SBC Nano 7240 Watchdog Timer" 1413 depends on X86_32 && !UML 1414 help 1415 This is the driver for the hardware watchdog found on the IEI 1416 single board computers EPIC Nano 7240 (and likely others). This 1417 watchdog simply watches your kernel to make sure it doesn't freeze, 1418 and if it does, it reboots your computer after a certain amount of 1419 time. 1420 1421 To compile this driver as a module, choose M here: the 1422 module will be called sbc7240_wdt. 1423 1424config CPU5_WDT 1425 tristate "SMA CPU5 Watchdog" 1426 depends on X86 1427 help 1428 TBD. 1429 To compile this driver as a module, choose M here: the 1430 module will be called cpu5wdt. 1431 1432config SMSC_SCH311X_WDT 1433 tristate "SMSC SCH311X Watchdog Timer" 1434 depends on X86 1435 help 1436 This is the driver for the hardware watchdog timer on the 1437 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1438 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1439 serial ports). 1440 1441 To compile this driver as a module, choose M here: the 1442 module will be called sch311x_wdt. 1443 1444config SMSC37B787_WDT 1445 tristate "Winbond SMsC37B787 Watchdog Timer" 1446 depends on X86 1447 help 1448 This is the driver for the hardware watchdog component on the 1449 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1450 from Vision Systems and maybe others. 1451 1452 This watchdog simply watches your kernel to make sure it doesn't 1453 freeze, and if it does, it reboots your computer after a certain 1454 amount of time. 1455 1456 Usually a userspace daemon will notify the kernel WDT driver that 1457 userspace is still alive, at regular intervals. 1458 1459 To compile this driver as a module, choose M here: the 1460 module will be called smsc37b787_wdt. 1461 1462 Most people will say N. 1463 1464config TQMX86_WDT 1465 tristate "TQ-Systems TQMX86 Watchdog Timer" 1466 depends on X86 1467 select WATCHDOG_CORE 1468 help 1469 This is the driver for the hardware watchdog timer in the TQMX86 IO 1470 controller found on some of their ComExpress Modules. 1471 1472 To compile this driver as a module, choose M here; the module 1473 will be called tqmx86_wdt. 1474 1475 Most people will say N. 1476 1477config VIA_WDT 1478 tristate "VIA Watchdog Timer" 1479 depends on X86 && PCI 1480 select WATCHDOG_CORE 1481 help 1482 This is the driver for the hardware watchdog timer on VIA 1483 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1484 1485 To compile this driver as a module, choose M here; the module 1486 will be called via_wdt. 1487 1488 Most people will say N. 1489 1490config W83627HF_WDT 1491 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1492 depends on X86 1493 select WATCHDOG_CORE 1494 help 1495 This is the driver for the hardware watchdog on the following 1496 Super I/O chips. 1497 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1498 W83637HF 1499 W83667HG/HG-B 1500 W83687THF 1501 W83697HF 1502 W83697UG 1503 NCT6775 1504 NCT6776 1505 NCT6779 1506 NCT6791 1507 NCT6792 1508 NCT6102D/04D/06D 1509 NCT6116D 1510 1511 This watchdog simply watches your kernel to make sure it doesn't 1512 freeze, and if it does, it reboots your computer after a certain 1513 amount of time. 1514 1515 To compile this driver as a module, choose M here: the 1516 module will be called w83627hf_wdt. 1517 1518 Most people will say N. 1519 1520config W83877F_WDT 1521 tristate "W83877F (EMACS) Watchdog Timer" 1522 depends on X86 1523 help 1524 This is the driver for the hardware watchdog on the W83877F chipset 1525 as used in EMACS PC-104 motherboards (and likely others). This 1526 watchdog simply watches your kernel to make sure it doesn't freeze, 1527 and if it does, it reboots your computer after a certain amount of 1528 time. 1529 1530 To compile this driver as a module, choose M here: the 1531 module will be called w83877f_wdt. 1532 1533 Most people will say N. 1534 1535config W83977F_WDT 1536 tristate "W83977F (PCM-5335) Watchdog Timer" 1537 depends on X86 1538 help 1539 This is the driver for the hardware watchdog on the W83977F I/O chip 1540 as used in AAEON's PCM-5335 SBC (and likely others). This 1541 watchdog simply watches your kernel to make sure it doesn't freeze, 1542 and if it does, it reboots your computer after a certain amount of 1543 time. 1544 1545 To compile this driver as a module, choose M here: the 1546 module will be called w83977f_wdt. 1547 1548config MACHZ_WDT 1549 tristate "ZF MachZ Watchdog" 1550 depends on X86 1551 help 1552 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1553 N. This is the driver for the watchdog timer built-in on that 1554 processor using ZF-Logic interface. This watchdog simply watches 1555 your kernel to make sure it doesn't freeze, and if it does, it 1556 reboots your computer after a certain amount of time. 1557 1558 To compile this driver as a module, choose M here: the 1559 module will be called machzwd. 1560 1561config SBC_EPX_C3_WATCHDOG 1562 tristate "Winsystems SBC EPX-C3 watchdog" 1563 depends on X86 1564 help 1565 This is the driver for the built-in watchdog timer on the EPX-C3 1566 Single-board computer made by Winsystems, Inc. 1567 1568 *Note*: This hardware watchdog is not probeable and thus there 1569 is no way to know if writing to its IO address will corrupt 1570 your system or have any real effect. The only way to be sure 1571 that this driver does what you want is to make sure you 1572 are running it on an EPX-C3 from Winsystems with the watchdog 1573 timer at IO address 0x1ee and 0x1ef. It will write to both those 1574 IO ports. Basically, the assumption is made that if you compile 1575 this driver into your kernel and/or load it as a module, that you 1576 know what you are doing and that you are in fact running on an 1577 EPX-C3 board! 1578 1579 To compile this driver as a module, choose M here: the 1580 module will be called sbc_epx_c3. 1581 1582config INTEL_MEI_WDT 1583 tristate "Intel MEI iAMT Watchdog" 1584 depends on INTEL_MEI && X86 1585 select WATCHDOG_CORE 1586 help 1587 A device driver for the Intel MEI iAMT watchdog. 1588 1589 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1590 Whenever the OS hangs or crashes, iAMT will send an event 1591 to any subscriber to this event. The watchdog doesn't reset the 1592 the platform. 1593 1594 To compile this driver as a module, choose M here: 1595 the module will be called mei_wdt. 1596 1597config NI903X_WDT 1598 tristate "NI 903x/913x Watchdog" 1599 depends on X86 && ACPI 1600 select WATCHDOG_CORE 1601 help 1602 This is the driver for the watchdog timer on the National Instruments 1603 903x/913x real-time controllers. 1604 1605 To compile this driver as a module, choose M here: the module will be 1606 called ni903x_wdt. 1607 1608config NIC7018_WDT 1609 tristate "NIC7018 Watchdog" 1610 depends on X86 && ACPI 1611 select WATCHDOG_CORE 1612 help 1613 Support for National Instruments NIC7018 Watchdog. 1614 1615 To compile this driver as a module, choose M here: the module will be 1616 called nic7018_wdt. 1617 1618# M68K Architecture 1619 1620config M54xx_WATCHDOG 1621 tristate "MCF54xx watchdog support" 1622 depends on M548x 1623 help 1624 To compile this driver as a module, choose M here: the 1625 module will be called m54xx_wdt. 1626 1627# MicroBlaze Architecture 1628 1629# MIPS Architecture 1630 1631config ATH79_WDT 1632 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1633 depends on ATH79 || (ARM && COMPILE_TEST) 1634 help 1635 Hardware driver for the built-in watchdog timer on the Atheros 1636 AR71XX/AR724X/AR913X SoCs. 1637 1638config BCM47XX_WDT 1639 tristate "Broadcom BCM47xx Watchdog Timer" 1640 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1641 select WATCHDOG_CORE 1642 help 1643 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1644 1645config RC32434_WDT 1646 tristate "IDT RC32434 SoC Watchdog Timer" 1647 depends on MIKROTIK_RB532 1648 help 1649 Hardware driver for the IDT RC32434 SoC built-in 1650 watchdog timer. 1651 1652 To compile this driver as a module, choose M here: the 1653 module will be called rc32434_wdt. 1654 1655config INDYDOG 1656 tristate "Indy/I2 Hardware Watchdog" 1657 depends on SGI_HAS_INDYDOG 1658 help 1659 Hardware driver for the Indy's/I2's watchdog. This is a 1660 watchdog timer that will reboot the machine after a 60 second 1661 timer expired and no process has written to /dev/watchdog during 1662 that time. 1663 1664config JZ4740_WDT 1665 tristate "Ingenic jz4740 SoC hardware watchdog" 1666 depends on MIPS 1667 depends on COMMON_CLK 1668 select WATCHDOG_CORE 1669 select MFD_SYSCON 1670 help 1671 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1672 1673config WDT_MTX1 1674 tristate "MTX-1 Hardware Watchdog" 1675 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1676 help 1677 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1678 will reboot the machine after a 100 seconds timer expired. 1679 1680config PNX833X_WDT 1681 tristate "PNX833x Hardware Watchdog" 1682 depends on SOC_PNX8335 1683 depends on BROKEN 1684 help 1685 Hardware driver for the PNX833x's watchdog. This is a 1686 watchdog timer that will reboot the machine after a programmable 1687 timer has expired and no process has written to /dev/watchdog during 1688 that time. 1689 1690config SIBYTE_WDOG 1691 tristate "Sibyte SoC hardware watchdog" 1692 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1693 help 1694 Watchdog driver for the built in watchdog hardware in Sibyte 1695 SoC processors. There are apparently two watchdog timers 1696 on such processors; this driver supports only the first one, 1697 because currently Linux only supports exporting one watchdog 1698 to userspace. 1699 1700 To compile this driver as a loadable module, choose M here. 1701 The module will be called sb_wdog. 1702 1703config AR7_WDT 1704 tristate "TI AR7 Watchdog Timer" 1705 depends on AR7 || (MIPS && COMPILE_TEST) 1706 help 1707 Hardware driver for the TI AR7 Watchdog Timer. 1708 1709config TXX9_WDT 1710 tristate "Toshiba TXx9 Watchdog Timer" 1711 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1712 select WATCHDOG_CORE 1713 help 1714 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1715 1716config OCTEON_WDT 1717 tristate "Cavium OCTEON SOC family Watchdog Timer" 1718 depends on CAVIUM_OCTEON_SOC 1719 default y 1720 select WATCHDOG_CORE 1721 select EXPORT_UASM if OCTEON_WDT = m 1722 help 1723 Hardware driver for OCTEON's on chip watchdog timer. 1724 Enables the watchdog for all cores running Linux. It 1725 installs a NMI handler and pokes the watchdog based on an 1726 interrupt. On first expiration of the watchdog, the 1727 interrupt handler pokes it. The second expiration causes an 1728 NMI that prints a message. The third expiration causes a 1729 global soft reset. 1730 1731 When userspace has /dev/watchdog open, no poking is done 1732 from the first interrupt, it is then only poked when the 1733 device is written. 1734 1735config BCM63XX_WDT 1736 tristate "Broadcom BCM63xx hardware watchdog" 1737 depends on BCM63XX 1738 help 1739 Watchdog driver for the built in watchdog hardware in Broadcom 1740 BCM63xx SoC. 1741 1742 To compile this driver as a loadable module, choose M here. 1743 The module will be called bcm63xx_wdt. 1744 1745config BCM2835_WDT 1746 tristate "Broadcom BCM2835 hardware watchdog" 1747 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1748 select WATCHDOG_CORE 1749 help 1750 Watchdog driver for the built in watchdog hardware in Broadcom 1751 BCM2835 SoC. 1752 1753 To compile this driver as a loadable module, choose M here. 1754 The module will be called bcm2835_wdt. 1755 1756config BCM_KONA_WDT 1757 tristate "BCM Kona Watchdog" 1758 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1759 select WATCHDOG_CORE 1760 help 1761 Support for the watchdog timer on the following Broadcom BCM281xx 1762 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1763 BCM28155 variants. 1764 1765 Say 'Y' or 'M' here to enable the driver. The module will be called 1766 bcm_kona_wdt. 1767 1768config BCM_KONA_WDT_DEBUG 1769 bool "DEBUGFS support for BCM Kona Watchdog" 1770 depends on BCM_KONA_WDT 1771 help 1772 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1773 access to the driver's internal data structures as well as watchdog 1774 timer hardware registres. 1775 1776 If in doubt, say 'N'. 1777 1778config BCM7038_WDT 1779 tristate "BCM7038 Watchdog" 1780 select WATCHDOG_CORE 1781 depends on HAS_IOMEM 1782 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1783 help 1784 Watchdog driver for the built-in hardware in Broadcom 7038 and 1785 later SoCs used in set-top boxes. BCM7038 was made public 1786 during the 2004 CES, and since then, many Broadcom chips use this 1787 watchdog block, including some cable modem chips. 1788 1789config IMGPDC_WDT 1790 tristate "Imagination Technologies PDC Watchdog Timer" 1791 depends on HAS_IOMEM 1792 depends on MIPS || COMPILE_TEST 1793 select WATCHDOG_CORE 1794 help 1795 Driver for Imagination Technologies PowerDown Controller 1796 Watchdog Timer. 1797 1798 To compile this driver as a loadable module, choose M here. 1799 The module will be called imgpdc_wdt. 1800 1801config LANTIQ_WDT 1802 tristate "Lantiq SoC watchdog" 1803 depends on LANTIQ 1804 select WATCHDOG_CORE 1805 help 1806 Hardware driver for the Lantiq SoC Watchdog Timer. 1807 1808config LOONGSON1_WDT 1809 tristate "Loongson1 SoC hardware watchdog" 1810 depends on MACH_LOONGSON32 1811 select WATCHDOG_CORE 1812 help 1813 Hardware driver for the Loongson1 SoC Watchdog Timer. 1814 1815config RALINK_WDT 1816 tristate "Ralink SoC watchdog" 1817 select WATCHDOG_CORE 1818 depends on RALINK 1819 help 1820 Hardware driver for the Ralink SoC Watchdog Timer. 1821 1822config MT7621_WDT 1823 tristate "Mediatek SoC watchdog" 1824 select WATCHDOG_CORE 1825 depends on SOC_MT7620 || SOC_MT7621 1826 help 1827 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1828 1829config PIC32_WDT 1830 tristate "Microchip PIC32 hardware watchdog" 1831 select WATCHDOG_CORE 1832 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1833 help 1834 Watchdog driver for the built in watchdog hardware in a PIC32. 1835 1836 Configuration bits must be set appropriately for the watchdog to be 1837 controlled by this driver. 1838 1839 To compile this driver as a loadable module, choose M here. 1840 The module will be called pic32-wdt. 1841 1842config PIC32_DMT 1843 tristate "Microchip PIC32 Deadman Timer" 1844 select WATCHDOG_CORE 1845 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1846 help 1847 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1848 timer is typically be used in misson critical and safety critical 1849 applications, where any single failure of the software functionality 1850 and sequencing must be detected. 1851 1852 To compile this driver as a loadable module, choose M here. 1853 The module will be called pic32-dmt. 1854 1855# PARISC Architecture 1856 1857# POWERPC Architecture 1858 1859config GEF_WDT 1860 tristate "GE Watchdog Timer" 1861 depends on GE_FPGA 1862 help 1863 Watchdog timer found in a number of GE single board computers. 1864 1865config MPC5200_WDT 1866 bool "MPC52xx Watchdog Timer" 1867 depends on PPC_MPC52xx || COMPILE_TEST 1868 help 1869 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1870 1871config 8xxx_WDT 1872 tristate "MPC8xxx Platform Watchdog Timer" 1873 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1874 select WATCHDOG_CORE 1875 help 1876 This driver is for a SoC level watchdog that exists on some 1877 Freescale PowerPC processors. So far this driver supports: 1878 - MPC8xx watchdogs 1879 - MPC83xx watchdogs 1880 - MPC86xx watchdogs 1881 1882 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1883 1884config MV64X60_WDT 1885 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1886 depends on MV64X60 || COMPILE_TEST 1887 1888config PIKA_WDT 1889 tristate "PIKA FPGA Watchdog" 1890 depends on WARP || (PPC64 && COMPILE_TEST) 1891 default y 1892 help 1893 This enables the watchdog in the PIKA FPGA. Currently used on 1894 the Warp platform. 1895 1896config BOOKE_WDT 1897 tristate "PowerPC Book-E Watchdog Timer" 1898 depends on BOOKE || 4xx 1899 select WATCHDOG_CORE 1900 help 1901 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1902 MPC85xx SOCs and the IBM PowerPC 440. 1903 1904 Please see Documentation/watchdog/watchdog-api.rst for 1905 more information. 1906 1907config BOOKE_WDT_DEFAULT_TIMEOUT 1908 int "PowerPC Book-E Watchdog Timer Default Timeout" 1909 depends on BOOKE_WDT 1910 default 38 if PPC_FSL_BOOK3E 1911 range 0 63 if PPC_FSL_BOOK3E 1912 default 3 if !PPC_FSL_BOOK3E 1913 range 0 3 if !PPC_FSL_BOOK3E 1914 help 1915 Select the default watchdog timer period to be used by the PowerPC 1916 Book-E watchdog driver. A watchdog "event" occurs when the bit 1917 position represented by this number transitions from zero to one. 1918 1919 For Freescale Book-E processors, this is a number between 0 and 63. 1920 For other Book-E processors, this is a number between 0 and 3. 1921 1922 The value can be overridden by the wdt_period command-line parameter. 1923 1924config MEN_A21_WDT 1925 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1926 select WATCHDOG_CORE 1927 depends on GPIOLIB || COMPILE_TEST 1928 help 1929 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1930 1931 The driver can also be built as a module. If so, the module will be 1932 called mena21_wdt. 1933 1934 If unsure select N here. 1935 1936# PPC64 Architecture 1937 1938config WATCHDOG_RTAS 1939 tristate "RTAS watchdog" 1940 depends on PPC_RTAS 1941 help 1942 This driver adds watchdog support for the RTAS watchdog. 1943 1944 To compile this driver as a module, choose M here. The module 1945 will be called wdrtas. 1946 1947# S390 Architecture 1948 1949config DIAG288_WATCHDOG 1950 tristate "System z diag288 Watchdog" 1951 depends on S390 1952 select WATCHDOG_CORE 1953 help 1954 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1955 provide a virtual watchdog timer to their guest that cause a 1956 user define Control Program command to be executed after a 1957 timeout. 1958 LPAR provides a very similar interface. This driver handles 1959 both. 1960 1961 To compile this driver as a module, choose M here. The module 1962 will be called diag288_wdt. 1963 1964# SUPERH (sh + sh64) Architecture 1965 1966config SH_WDT 1967 tristate "SuperH Watchdog" 1968 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1969 select WATCHDOG_CORE 1970 help 1971 This driver adds watchdog support for the integrated watchdog in the 1972 SuperH processors. If you have one of these processors and wish 1973 to have watchdog support enabled, say Y, otherwise say N. 1974 1975 As a side note, saying Y here will automatically boost HZ to 1000 1976 so that the timer has a chance to clear the overflow counter. On 1977 slower systems (such as the SH-2 and SH-3) this will likely yield 1978 some performance issues. As such, the WDT should be avoided here 1979 unless it is absolutely necessary. 1980 1981 To compile this driver as a module, choose M here: the 1982 module will be called shwdt. 1983 1984# SPARC Architecture 1985 1986# SPARC64 Architecture 1987 1988config WATCHDOG_CP1XXX 1989 tristate "CP1XXX Hardware Watchdog support" 1990 depends on SPARC64 && PCI 1991 help 1992 This is the driver for the hardware watchdog timers present on 1993 Sun Microsystems CompactPCI models CP1400 and CP1500. 1994 1995 To compile this driver as a module, choose M here: the 1996 module will be called cpwatchdog. 1997 1998 If you do not have a CompactPCI model CP1400 or CP1500, or 1999 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2000 you should say N to this option. 2001 2002config WATCHDOG_RIO 2003 tristate "RIO Hardware Watchdog support" 2004 depends on SPARC64 && PCI 2005 help 2006 Say Y here to support the hardware watchdog capability on Sun RIO 2007 machines. The watchdog timeout period is normally one minute but 2008 can be changed with a boot-time parameter. 2009 2010config WATCHDOG_SUN4V 2011 tristate "Sun4v Watchdog support" 2012 select WATCHDOG_CORE 2013 depends on SPARC64 2014 help 2015 Say Y here to support the hypervisor watchdog capability embedded 2016 in the SPARC sun4v architecture. 2017 2018 To compile this driver as a module, choose M here. The module will 2019 be called sun4v_wdt. 2020 2021# XTENSA Architecture 2022 2023# Xen Architecture 2024 2025config XEN_WDT 2026 tristate "Xen Watchdog support" 2027 depends on XEN 2028 select WATCHDOG_CORE 2029 help 2030 Say Y here to support the hypervisor watchdog capability provided 2031 by Xen 4.0 and newer. The watchdog timeout period is normally one 2032 minute but can be changed with a boot-time parameter. 2033 2034config UML_WATCHDOG 2035 tristate "UML watchdog" 2036 depends on UML || COMPILE_TEST 2037 2038# 2039# ISA-based Watchdog Cards 2040# 2041 2042comment "ISA-based Watchdog Cards" 2043 depends on ISA 2044 2045config PCWATCHDOG 2046 tristate "Berkshire Products ISA-PC Watchdog" 2047 depends on ISA 2048 help 2049 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2050 This card simply watches your kernel to make sure it doesn't freeze, 2051 and if it does, it reboots your computer after a certain amount of 2052 time. This driver is like the WDT501 driver but for different 2053 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2054 watchdog cards can be ordered from <http://www.berkprod.com/>. 2055 2056 To compile this driver as a module, choose M here: the 2057 module will be called pcwd. 2058 2059 Most people will say N. 2060 2061config MIXCOMWD 2062 tristate "Mixcom Watchdog" 2063 depends on ISA 2064 help 2065 This is a driver for the Mixcom hardware watchdog cards. This 2066 watchdog simply watches your kernel to make sure it doesn't freeze, 2067 and if it does, it reboots your computer after a certain amount of 2068 time. 2069 2070 To compile this driver as a module, choose M here: the 2071 module will be called mixcomwd. 2072 2073 Most people will say N. 2074 2075config WDT 2076 tristate "WDT Watchdog timer" 2077 depends on ISA 2078 help 2079 If you have a WDT500P or WDT501P watchdog board, say Y here, 2080 otherwise N. It is not possible to probe for this board, which means 2081 that you have to inform the kernel about the IO port and IRQ that 2082 is needed (you can do this via the io and irq parameters) 2083 2084 To compile this driver as a module, choose M here: the 2085 module will be called wdt. 2086 2087# 2088# PCI-based Watchdog Cards 2089# 2090 2091comment "PCI-based Watchdog Cards" 2092 depends on PCI 2093 2094config PCIPCWATCHDOG 2095 tristate "Berkshire Products PCI-PC Watchdog" 2096 depends on PCI 2097 help 2098 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2099 This card simply watches your kernel to make sure it doesn't freeze, 2100 and if it does, it reboots your computer after a certain amount of 2101 time. The card can also monitor the internal temperature of the PC. 2102 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2103 2104 To compile this driver as a module, choose M here: the 2105 module will be called pcwd_pci. 2106 2107 Most people will say N. 2108 2109config WDTPCI 2110 tristate "PCI-WDT500/501 Watchdog timer" 2111 depends on PCI 2112 help 2113 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2114 2115 If you have a PCI-WDT501 watchdog board then you can enable the 2116 temperature sensor by setting the type parameter to 501. 2117 2118 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2119 can do this via the tachometer parameter. Only do this if you have a 2120 fan tachometer actually set up. 2121 2122 To compile this driver as a module, choose M here: the 2123 module will be called wdt_pci. 2124 2125# 2126# USB-based Watchdog Cards 2127# 2128 2129comment "USB-based Watchdog Cards" 2130 depends on USB 2131 2132config USBPCWATCHDOG 2133 tristate "Berkshire Products USB-PC Watchdog" 2134 depends on USB 2135 help 2136 This is the driver for the Berkshire Products USB-PC Watchdog card. 2137 This card simply watches your kernel to make sure it doesn't freeze, 2138 and if it does, it reboots your computer after a certain amount of 2139 time. The card can also monitor the internal temperature of the PC. 2140 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2141 2142 To compile this driver as a module, choose M here: the 2143 module will be called pcwd_usb. 2144 2145 Most people will say N. 2146 2147endif # WATCHDOG 2148