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 343config SL28CPLD_WATCHDOG 344 tristate "Kontron sl28cpld Watchdog" 345 depends on MFD_SL28CPLD || COMPILE_TEST 346 select WATCHDOG_CORE 347 help 348 Say Y here to include support for the watchdog timer 349 on the Kontron sl28 CPLD. 350 351 To compile this driver as a module, choose M here: the 352 module will be called sl28cpld_wdt. 353 354# ALPHA Architecture 355 356# ARM Architecture 357 358config ARM_SP805_WATCHDOG 359 tristate "ARM SP805 Watchdog" 360 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 361 select WATCHDOG_CORE 362 help 363 ARM Primecell SP805 Watchdog timer. This will reboot your system when 364 the timeout is reached. 365 366config ARM_SBSA_WATCHDOG 367 tristate "ARM SBSA Generic Watchdog" 368 depends on ARM64 369 depends on ARM_ARCH_TIMER 370 select WATCHDOG_CORE 371 help 372 ARM SBSA Generic Watchdog has two stage timeouts: 373 the first signal (WS0) is for alerting the system by interrupt, 374 the second one (WS1) is a real hardware reset. 375 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 376 377 This driver can operate ARM SBSA Generic Watchdog as a single stage 378 or a two stages watchdog, it depends on the module parameter "action". 379 380 Note: the maximum timeout in the two stages mode is half of that in 381 the single stage mode. 382 383 To compile this driver as module, choose M here: The module 384 will be called sbsa_gwdt. 385 386config ARMADA_37XX_WATCHDOG 387 tristate "Armada 37xx watchdog" 388 depends on ARCH_MVEBU || COMPILE_TEST 389 select MFD_SYSCON 390 select WATCHDOG_CORE 391 help 392 Say Y here to include support for the watchdog timer found on 393 Marvell Armada 37xx SoCs. 394 To compile this driver as a module, choose M here: the 395 module will be called armada_37xx_wdt. 396 397config ASM9260_WATCHDOG 398 tristate "Alphascale ASM9260 watchdog" 399 depends on MACH_ASM9260 || COMPILE_TEST 400 depends on OF 401 select WATCHDOG_CORE 402 select RESET_CONTROLLER 403 help 404 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 405 system when the timeout is reached. 406 407config AT91RM9200_WATCHDOG 408 tristate "AT91RM9200 watchdog" 409 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 410 help 411 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 412 system when the timeout is reached. 413 414config AT91SAM9X_WATCHDOG 415 tristate "AT91SAM9X / AT91CAP9 watchdog" 416 depends on ARCH_AT91 || COMPILE_TEST 417 select WATCHDOG_CORE 418 help 419 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 420 reboot your system when the timeout is reached. 421 422config SAMA5D4_WATCHDOG 423 tristate "Atmel SAMA5D4 Watchdog Timer" 424 depends on ARCH_AT91 || COMPILE_TEST 425 select WATCHDOG_CORE 426 help 427 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 428 Its Watchdog Timer Mode Register can be written more than once. 429 This will reboot your system when the timeout is reached. 430 431config CADENCE_WATCHDOG 432 tristate "Cadence Watchdog Timer" 433 depends on HAS_IOMEM 434 select WATCHDOG_CORE 435 help 436 Say Y here if you want to include support for the watchdog 437 timer in the Xilinx Zynq. 438 439config 21285_WATCHDOG 440 tristate "DC21285 watchdog" 441 depends on FOOTBRIDGE 442 help 443 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 444 here if you wish to use this. Alternatively say M to compile the 445 driver as a module, which will be called wdt285. 446 447 This driver does not work on all machines. In particular, early CATS 448 boards have hardware problems that will cause the machine to simply 449 lock up if the watchdog fires. 450 451 "If in doubt, leave it out" - say N. 452 453config 977_WATCHDOG 454 tristate "NetWinder WB83C977 watchdog" 455 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 456 help 457 Say Y here to include support for the WB977 watchdog included in 458 NetWinder machines. Alternatively say M to compile the driver as 459 a module, which will be called wdt977. 460 461 Not sure? It's safe to say N. 462 463config FTWDT010_WATCHDOG 464 tristate "Faraday Technology FTWDT010 watchdog" 465 depends on ARM || COMPILE_TEST 466 select WATCHDOG_CORE 467 default ARCH_GEMINI 468 help 469 Say Y here if to include support for the Faraday Technology 470 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 471 family of devices. 472 473 To compile this driver as a module, choose M here: the 474 module will be called ftwdt010_wdt. 475 476config IXP4XX_WATCHDOG 477 tristate "IXP4xx Watchdog" 478 depends on ARCH_IXP4XX 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 HAVE_S3C2410_WATCHDOG 493 bool 494 help 495 This will include watchdog timer support for Samsung SoCs. If 496 you want to include watchdog support for any machine, kindly 497 select this in the respective mach-XXXX/Kconfig file. 498 499config S3C2410_WATCHDOG 500 tristate "S3C2410 Watchdog" 501 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 502 select WATCHDOG_CORE 503 select MFD_SYSCON if ARCH_EXYNOS 504 help 505 Watchdog timer block in the Samsung SoCs. This will reboot 506 the system when the timer expires with the watchdog enabled. 507 508 The driver is limited by the speed of the system's PCLK 509 signal, so with reasonably fast systems (PCLK around 50-66MHz) 510 then watchdog intervals of over approximately 20seconds are 511 unavailable. 512 513 The driver can be built as a module by choosing M, and will 514 be called s3c2410_wdt 515 516config SA1100_WATCHDOG 517 tristate "SA1100/PXA2xx watchdog" 518 depends on ARCH_SA1100 || ARCH_PXA 519 help 520 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 521 reboot your system when timeout is reached. 522 523 NOTE: once enabled, this timer cannot be disabled. 524 525 To compile this driver as a module, choose M here: the 526 module will be called sa1100_wdt. 527 528config DW_WATCHDOG 529 tristate "Synopsys DesignWare watchdog" 530 depends on HAS_IOMEM 531 select WATCHDOG_CORE 532 help 533 Say Y here if to include support for the Synopsys DesignWare 534 watchdog timer found in many chips. 535 To compile this driver as a module, choose M here: the 536 module will be called dw_wdt. 537 538config EP93XX_WATCHDOG 539 tristate "EP93xx Watchdog" 540 depends on ARCH_EP93XX || COMPILE_TEST 541 select WATCHDOG_CORE 542 help 543 Say Y here if to include support for the watchdog timer 544 embedded in the Cirrus Logic EP93xx family of devices. 545 546 To compile this driver as a module, choose M here: the 547 module will be called ep93xx_wdt. 548 549config OMAP_WATCHDOG 550 tristate "OMAP Watchdog" 551 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 552 select WATCHDOG_CORE 553 help 554 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 555 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 556 557config PNX4008_WATCHDOG 558 tristate "LPC32XX Watchdog" 559 depends on ARCH_LPC32XX || COMPILE_TEST 560 select WATCHDOG_CORE 561 help 562 Say Y here if to include support for the watchdog timer 563 in the LPC32XX processor. 564 This driver can be built as a module by choosing M. The module 565 will be called pnx4008_wdt. 566 567 Say N if you are unsure. 568 569config IOP_WATCHDOG 570 tristate "IOP Watchdog" 571 depends on ARCH_IOP13XX 572 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 573 help 574 Say Y here if to include support for the watchdog timer 575 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 576 be built as a module by choosing M. The module will 577 be called iop_wdt. 578 579 Note: The IOP13XX watchdog does an Internal Bus Reset which will 580 affect both cores and the peripherals of the IOP. The ATU-X 581 and/or ATUe configuration registers will remain intact, but if 582 operating as an Root Complex and/or Central Resource, the PCI-X 583 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 584 585config DAVINCI_WATCHDOG 586 tristate "DaVinci watchdog" 587 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 588 select WATCHDOG_CORE 589 help 590 Say Y here if to include support for the watchdog timer 591 in the DaVinci DM644x/DM646x or Keystone processors. 592 To compile this driver as a module, choose M here: the 593 module will be called davinci_wdt. 594 595 NOTE: once enabled, this timer cannot be disabled. 596 Say N if you are unsure. 597 598config K3_RTI_WATCHDOG 599 tristate "Texas Instruments K3 RTI watchdog" 600 depends on ARCH_K3 || COMPILE_TEST 601 select WATCHDOG_CORE 602 help 603 Say Y here if you want to include support for the K3 watchdog 604 timer (RTI module) available in the K3 generation of processors. 605 606config ORION_WATCHDOG 607 tristate "Orion watchdog" 608 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 609 depends on ARM 610 select WATCHDOG_CORE 611 help 612 Say Y here if to include support for the watchdog timer 613 in the Marvell Orion5x and Kirkwood ARM SoCs. 614 To compile this driver as a module, choose M here: the 615 module will be called orion_wdt. 616 617config RN5T618_WATCHDOG 618 tristate "Ricoh RN5T618 watchdog" 619 depends on MFD_RN5T618 || COMPILE_TEST 620 select WATCHDOG_CORE 621 help 622 If you say yes here you get support for watchdog on the Ricoh 623 RN5T618 PMIC. 624 625 This driver can also be built as a module. If so, the module 626 will be called rn5t618_wdt. 627 628config SUNXI_WATCHDOG 629 tristate "Allwinner SoCs watchdog support" 630 depends on ARCH_SUNXI || COMPILE_TEST 631 select WATCHDOG_CORE 632 help 633 Say Y here to include support for the watchdog timer 634 in Allwinner SoCs. 635 To compile this driver as a module, choose M here: the 636 module will be called sunxi_wdt. 637 638config COH901327_WATCHDOG 639 bool "ST-Ericsson COH 901 327 watchdog" 640 depends on ARCH_U300 || (ARM && COMPILE_TEST) 641 default y if MACH_U300 642 select WATCHDOG_CORE 643 help 644 Say Y here to include Watchdog timer support for the 645 watchdog embedded into the ST-Ericsson U300 series platforms. 646 This watchdog is used to reset the system and thus cannot be 647 compiled as a module. 648 649config NPCM7XX_WATCHDOG 650 tristate "Nuvoton NPCM750 watchdog" 651 depends on ARCH_NPCM || COMPILE_TEST 652 default y if ARCH_NPCM7XX 653 select WATCHDOG_CORE 654 help 655 Say Y here to include Watchdog timer support for the 656 watchdog embedded into the NPCM7xx. 657 This watchdog is used to reset the system and thus cannot be 658 compiled as a module. 659 660config TWL4030_WATCHDOG 661 tristate "TWL4030 Watchdog" 662 depends on TWL4030_CORE 663 select WATCHDOG_CORE 664 help 665 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 666 watchdog timer support for TWL4030 chips. 667 668config STMP3XXX_RTC_WATCHDOG 669 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 670 depends on RTC_DRV_STMP || COMPILE_TEST 671 select WATCHDOG_CORE 672 help 673 Say Y here to include support for the watchdog timer inside 674 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 675 To compile this driver as a module, choose M here: the 676 module will be called stmp3xxx_rtc_wdt. 677 678config TS4800_WATCHDOG 679 tristate "TS-4800 Watchdog" 680 depends on HAS_IOMEM && OF 681 depends on SOC_IMX51 || COMPILE_TEST 682 select WATCHDOG_CORE 683 select MFD_SYSCON 684 help 685 Technologic Systems TS-4800 has watchdog timer implemented in 686 an external FPGA. Say Y here if you want to support for the 687 watchdog timer on TS-4800 board. 688 689config TS72XX_WATCHDOG 690 tristate "TS-72XX SBC Watchdog" 691 depends on MACH_TS72XX || COMPILE_TEST 692 select WATCHDOG_CORE 693 help 694 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 695 watchdog timer implemented in a external CPLD chip. Say Y here 696 if you want to support for the watchdog timer on TS-72XX boards. 697 698 To compile this driver as a module, choose M here: the 699 module will be called ts72xx_wdt. 700 701config MAX63XX_WATCHDOG 702 tristate "Max63xx watchdog" 703 depends on HAS_IOMEM 704 select WATCHDOG_CORE 705 help 706 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 707 708config MAX77620_WATCHDOG 709 tristate "Maxim Max77620 Watchdog Timer" 710 depends on MFD_MAX77620 || COMPILE_TEST 711 select WATCHDOG_CORE 712 help 713 This is the driver for the Max77620 watchdog timer. 714 Say 'Y' here to enable the watchdog timer support for 715 MAX77620 chips. To compile this driver as a module, 716 choose M here: the module will be called max77620_wdt. 717 718config IMX2_WDT 719 tristate "IMX2+ Watchdog" 720 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 721 select REGMAP_MMIO 722 select WATCHDOG_CORE 723 help 724 This is the driver for the hardware watchdog 725 on the Freescale IMX2 and later processors. 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 imx2_wdt. 731 732config IMX_SC_WDT 733 tristate "IMX SC Watchdog" 734 depends on HAVE_ARM_SMCCC 735 depends on IMX_SCU 736 select WATCHDOG_CORE 737 help 738 This is the driver for the system controller watchdog 739 on the NXP i.MX SoCs with system controller inside, the 740 watchdog driver will call ARM SMC API and trap into 741 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 742 will request system controller to execute the operations. 743 If you have one of these processors and wish to have 744 watchdog support enabled, say Y, otherwise say N. 745 746 To compile this driver as a module, choose M here: the 747 module will be called imx_sc_wdt. 748 749config IMX7ULP_WDT 750 tristate "IMX7ULP Watchdog" 751 depends on ARCH_MXC || COMPILE_TEST 752 select WATCHDOG_CORE 753 help 754 This is the driver for the hardware watchdog on the Freescale 755 IMX7ULP and later processors. If you have one of these 756 processors and wish to have watchdog support enabled, 757 say Y, otherwise say N. 758 759 To compile this driver as a module, choose M here: the 760 module will be called imx7ulp_wdt. 761 762config UX500_WATCHDOG 763 tristate "ST-Ericsson Ux500 watchdog" 764 depends on MFD_DB8500_PRCMU 765 select WATCHDOG_CORE 766 default y 767 help 768 Say Y here to include Watchdog timer support for the watchdog 769 existing in the prcmu of ST-Ericsson Ux500 series platforms. 770 771 To compile this driver as a module, choose M here: the 772 module will be called ux500_wdt. 773 774config RETU_WATCHDOG 775 tristate "Retu watchdog" 776 depends on MFD_RETU 777 select WATCHDOG_CORE 778 help 779 Retu watchdog driver for Nokia Internet Tablets (770, N800, 780 N810). At least on N800 the watchdog cannot be disabled, so 781 this driver is essential and you should enable it. 782 783 To compile this driver as a module, choose M here: the 784 module will be called retu_wdt. 785 786config MOXART_WDT 787 tristate "MOXART watchdog" 788 depends on ARCH_MOXART || COMPILE_TEST 789 help 790 Say Y here to include Watchdog timer support for the watchdog 791 existing on the MOXA ART SoC series platforms. 792 793 To compile this driver as a module, choose M here: the 794 module will be called moxart_wdt. 795 796config SIRFSOC_WATCHDOG 797 tristate "SiRFSOC watchdog" 798 depends on ARCH_SIRF || COMPILE_TEST 799 select WATCHDOG_CORE 800 default y 801 help 802 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 803 the watchdog triggers the system will be reset. 804 805config ST_LPC_WATCHDOG 806 tristate "STMicroelectronics LPC Watchdog" 807 depends on ARCH_STI || COMPILE_TEST 808 depends on OF 809 select WATCHDOG_CORE 810 help 811 Say Y here to include STMicroelectronics Low Power Controller 812 (LPC) based Watchdog timer support. 813 814 To compile this driver as a module, choose M here: the 815 module will be called st_lpc_wdt. 816 817config TEGRA_WATCHDOG 818 tristate "Tegra watchdog" 819 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 820 select WATCHDOG_CORE 821 help 822 Say Y here to include support for the watchdog timer 823 embedded in NVIDIA Tegra SoCs. 824 825 To compile this driver as a module, choose M here: the 826 module will be called tegra_wdt. 827 828config QCOM_WDT 829 tristate "QCOM watchdog" 830 depends on HAS_IOMEM 831 depends on ARCH_QCOM || COMPILE_TEST 832 select WATCHDOG_CORE 833 help 834 Say Y here to include Watchdog timer support for the watchdog found 835 on QCOM chipsets. Currently supported targets are the MSM8960, 836 APQ8064, and IPQ8064. 837 838 To compile this driver as a module, choose M here: the 839 module will be called qcom_wdt. 840 841config MESON_GXBB_WATCHDOG 842 tristate "Amlogic Meson GXBB SoCs watchdog support" 843 depends on ARCH_MESON || COMPILE_TEST 844 select WATCHDOG_CORE 845 help 846 Say Y here to include support for the watchdog timer 847 in Amlogic Meson GXBB SoCs. 848 To compile this driver as a module, choose M here: the 849 module will be called meson_gxbb_wdt. 850 851config MESON_WATCHDOG 852 tristate "Amlogic Meson SoCs watchdog support" 853 depends on ARCH_MESON || COMPILE_TEST 854 select WATCHDOG_CORE 855 help 856 Say Y here to include support for the watchdog timer 857 in Amlogic Meson SoCs. 858 To compile this driver as a module, choose M here: the 859 module will be called meson_wdt. 860 861config MEDIATEK_WATCHDOG 862 tristate "Mediatek SoCs watchdog support" 863 depends on ARCH_MEDIATEK || COMPILE_TEST 864 select WATCHDOG_CORE 865 select RESET_CONTROLLER 866 help 867 Say Y here to include support for the watchdog timer 868 in Mediatek SoCs. 869 To compile this driver as a module, choose M here: the 870 module will be called mtk_wdt. 871 872config DIGICOLOR_WATCHDOG 873 tristate "Conexant Digicolor SoCs watchdog support" 874 depends on ARCH_DIGICOLOR || COMPILE_TEST 875 select WATCHDOG_CORE 876 help 877 Say Y here to include support for the watchdog timer 878 in Conexant Digicolor SoCs. 879 To compile this driver as a module, choose M here: the 880 module will be called digicolor_wdt. 881 882config ARM_SMC_WATCHDOG 883 tristate "ARM Secure Monitor Call based watchdog support" 884 depends on ARM || ARM64 885 depends on OF 886 depends on HAVE_ARM_SMCCC 887 select WATCHDOG_CORE 888 help 889 Say Y here to include support for a watchdog timer 890 implemented by the EL3 Secure Monitor on ARM platforms. 891 Requires firmware support. 892 To compile this driver as a module, choose M here: the 893 module will be called arm_smc_wdt. 894 895config LPC18XX_WATCHDOG 896 tristate "LPC18xx/43xx Watchdog" 897 depends on ARCH_LPC18XX || COMPILE_TEST 898 depends on HAS_IOMEM 899 select WATCHDOG_CORE 900 help 901 Say Y here if to include support for the watchdog timer 902 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 903 processors. 904 To compile this driver as a module, choose M here: the 905 module will be called lpc18xx_wdt. 906 907config ATLAS7_WATCHDOG 908 tristate "CSRatlas7 watchdog" 909 depends on ARCH_ATLAS7 || COMPILE_TEST 910 help 911 Say Y here to include Watchdog timer support for the watchdog 912 existing on the CSRatlas7 series platforms. 913 914 To compile this driver as a module, choose M here: the 915 module will be called atlas7_wdt. 916 917config RENESAS_WDT 918 tristate "Renesas WDT Watchdog" 919 depends on ARCH_RENESAS || COMPILE_TEST 920 select WATCHDOG_CORE 921 help 922 This driver adds watchdog support for the integrated watchdogs in the 923 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 924 925config RENESAS_RZAWDT 926 tristate "Renesas RZ/A WDT Watchdog" 927 depends on ARCH_RENESAS || COMPILE_TEST 928 select WATCHDOG_CORE 929 help 930 This driver adds watchdog support for the integrated watchdogs in the 931 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 932 933config ASPEED_WATCHDOG 934 tristate "Aspeed BMC watchdog support" 935 depends on ARCH_ASPEED || COMPILE_TEST 936 select WATCHDOG_CORE 937 help 938 Say Y here to include support for the watchdog timer 939 in Aspeed BMC SoCs. 940 941 This driver is required to reboot the SoC. 942 943 To compile this driver as a module, choose M here: the 944 module will be called aspeed_wdt. 945 946config ZX2967_WATCHDOG 947 tristate "ZTE zx2967 SoCs watchdog support" 948 depends on ARCH_ZX 949 select WATCHDOG_CORE 950 help 951 Say Y here to include support for the watchdog timer 952 in ZTE zx2967 SoCs. 953 To compile this driver as a module, choose M here: the 954 module will be called zx2967_wdt. 955 956config STM32_WATCHDOG 957 tristate "STM32 Independent WatchDoG (IWDG) support" 958 depends on ARCH_STM32 959 select WATCHDOG_CORE 960 default y 961 help 962 Say Y here to include support for the watchdog timer 963 in stm32 SoCs. 964 965 To compile this driver as a module, choose M here: the 966 module will be called stm32_iwdg. 967 968config STPMIC1_WATCHDOG 969 tristate "STPMIC1 PMIC watchdog support" 970 depends on MFD_STPMIC1 971 select WATCHDOG_CORE 972 help 973 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 974 If the watchdog timer expires, stpmic1 will shut down all its power 975 supplies. 976 977 To compile this driver as a module, choose M here: the 978 module will be called spmic1_wdt. 979 980config UNIPHIER_WATCHDOG 981 tristate "UniPhier watchdog support" 982 depends on ARCH_UNIPHIER || COMPILE_TEST 983 depends on OF && MFD_SYSCON 984 select WATCHDOG_CORE 985 help 986 Say Y here to include support watchdog timer embedded 987 into the UniPhier system. 988 989 To compile this driver as a module, choose M here: the 990 module will be called uniphier_wdt. 991 992config RTD119X_WATCHDOG 993 bool "Realtek RTD119x/RTD129x watchdog support" 994 depends on ARCH_REALTEK || COMPILE_TEST 995 depends on OF 996 select WATCHDOG_CORE 997 default ARCH_REALTEK 998 help 999 Say Y here to include support for the watchdog timer in 1000 Realtek RTD1295 SoCs. 1001 1002config SPRD_WATCHDOG 1003 tristate "Spreadtrum watchdog support" 1004 depends on ARCH_SPRD || COMPILE_TEST 1005 select WATCHDOG_CORE 1006 help 1007 Say Y here to include watchdog timer supported 1008 by Spreadtrum system. 1009 1010config PM8916_WATCHDOG 1011 tristate "QCOM PM8916 pmic watchdog" 1012 depends on OF && MFD_SPMI_PMIC 1013 select WATCHDOG_CORE 1014 help 1015 Say Y here to include support watchdog timer embedded into the 1016 pm8916 module. 1017 1018config VISCONTI_WATCHDOG 1019 tristate "Toshiba Visconti series watchdog support" 1020 depends on ARCH_VISCONTI || COMPILE_TEST 1021 select WATCHDOG_CORE 1022 help 1023 Say Y here to include support for the watchdog timer in Toshiba 1024 Visconti SoCs. 1025 1026# X86 (i386 + ia64 + x86_64) Architecture 1027 1028config ACQUIRE_WDT 1029 tristate "Acquire SBC Watchdog Timer" 1030 depends on X86 1031 help 1032 This is the driver for the hardware watchdog on Single Board 1033 Computers produced by Acquire Inc (and others). This watchdog 1034 simply watches your kernel to make sure it doesn't freeze, and if 1035 it does, it reboots your computer after a certain amount of time. 1036 1037 To compile this driver as a module, choose M here: the 1038 module will be called acquirewdt. 1039 1040 Most people will say N. 1041 1042config ADVANTECH_WDT 1043 tristate "Advantech SBC Watchdog Timer" 1044 depends on X86 1045 help 1046 If you are configuring a Linux kernel for the Advantech single-board 1047 computer, say `Y' here to support its built-in watchdog timer 1048 feature. More information can be found at 1049 <https://www.advantech.com.tw/products/> 1050 1051config ALIM1535_WDT 1052 tristate "ALi M1535 PMU Watchdog Timer" 1053 depends on X86 && PCI 1054 help 1055 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1056 1057 To compile this driver as a module, choose M here: the 1058 module will be called alim1535_wdt. 1059 1060 Most people will say N. 1061 1062config ALIM7101_WDT 1063 tristate "ALi M7101 PMU Computer Watchdog" 1064 depends on PCI 1065 help 1066 This is the driver for the hardware watchdog on the ALi M7101 PMU 1067 as used in the x86 Cobalt servers and also found in some 1068 SPARC Netra servers too. 1069 1070 To compile this driver as a module, choose M here: the 1071 module will be called alim7101_wdt. 1072 1073 Most people will say N. 1074 1075config EBC_C384_WDT 1076 tristate "WinSystems EBC-C384 Watchdog Timer" 1077 depends on X86 1078 select ISA_BUS_API 1079 select WATCHDOG_CORE 1080 help 1081 Enables watchdog timer support for the watchdog timer on the 1082 WinSystems EBC-C384 motherboard. The timeout may be configured via 1083 the timeout module parameter. 1084 1085config F71808E_WDT 1086 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1087 depends on X86 1088 help 1089 This is the driver for the hardware watchdog on the Fintek F71808E, 1090 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1091 F81866 Super I/O controllers. 1092 1093 You can compile this driver directly into the kernel, or use 1094 it as a module. The module will be called f71808e_wdt. 1095 1096config SP5100_TCO 1097 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1098 depends on X86 && PCI 1099 select WATCHDOG_CORE 1100 help 1101 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1102 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1103 the machine after its expiration. The expiration time can be 1104 configured with the "heartbeat" parameter. 1105 1106 To compile this driver as a module, choose M here: the 1107 module will be called sp5100_tco. 1108 1109config GEODE_WDT 1110 tristate "AMD Geode CS5535/CS5536 Watchdog" 1111 depends on CS5535_MFGPT 1112 help 1113 This driver enables a watchdog capability built into the 1114 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1115 processors. This watchdog watches your kernel to make sure 1116 it doesn't freeze, and if it does, it reboots your computer after 1117 a certain amount of time. 1118 1119 You can compile this driver directly into the kernel, or use 1120 it as a module. The module will be called geodewdt. 1121 1122config SC520_WDT 1123 tristate "AMD Elan SC520 processor Watchdog" 1124 depends on MELAN || COMPILE_TEST 1125 help 1126 This is the driver for the hardware watchdog built in to the 1127 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1128 This watchdog simply watches your kernel to make sure it doesn't 1129 freeze, and if it does, it reboots your computer after a certain 1130 amount of time. 1131 1132 You can compile this driver directly into the kernel, or use 1133 it as a module. The module will be called sc520_wdt. 1134 1135config SBC_FITPC2_WATCHDOG 1136 tristate "Compulab SBC-FITPC2 watchdog" 1137 depends on X86 1138 help 1139 This is the driver for the built-in watchdog timer on the fit-PC2, 1140 fit-PC2i, CM-iAM single-board computers made by Compulab. 1141 1142 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1143 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1144 1145 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1146 so system will not be restarted while user in BIOS setup. 1147 1148 Once watchdog was enabled the system will be restarted every 1149 "Watchdog Timer Value" period, so to prevent it user can restart or 1150 disable the watchdog. 1151 1152 To compile this driver as a module, choose M here: the 1153 module will be called sbc_fitpc2_wdt. 1154 1155 Most people will say N. 1156 1157config EUROTECH_WDT 1158 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1159 depends on X86 1160 help 1161 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1162 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1163 information are at <http://www.eurotech.it/>. 1164 1165config IB700_WDT 1166 tristate "IB700 SBC Watchdog Timer" 1167 depends on X86 1168 help 1169 This is the driver for the hardware watchdog on the IB700 Single 1170 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1171 simply watches your kernel to make sure it doesn't freeze, and if 1172 it does, it reboots your computer after a certain amount of time. 1173 1174 This driver is like the WDT501 driver but for slightly different hardware. 1175 1176 To compile this driver as a module, choose M here: the 1177 module will be called ib700wdt. 1178 1179 Most people will say N. 1180 1181config IBMASR 1182 tristate "IBM Automatic Server Restart" 1183 depends on X86 1184 help 1185 This is the driver for the IBM Automatic Server Restart watchdog 1186 timer built-in into some eServer xSeries machines. 1187 1188 To compile this driver as a module, choose M here: the 1189 module will be called ibmasr. 1190 1191config WAFER_WDT 1192 tristate "ICP Single Board Computer Watchdog Timer" 1193 depends on X86 1194 help 1195 This is a driver for the hardware watchdog on the ICP Single 1196 Board Computer. This driver is working on (at least) the following 1197 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1198 1199 To compile this driver as a module, choose M here: the 1200 module will be called wafer5823wdt. 1201 1202config I6300ESB_WDT 1203 tristate "Intel 6300ESB Timer/Watchdog" 1204 depends on PCI 1205 select WATCHDOG_CORE 1206 help 1207 Hardware driver for the watchdog timer built into the Intel 1208 6300ESB controller hub. 1209 1210 To compile this driver as a module, choose M here: the 1211 module will be called i6300esb. 1212 1213config IE6XX_WDT 1214 tristate "Intel Atom E6xx Watchdog" 1215 depends on X86 && PCI 1216 select WATCHDOG_CORE 1217 select MFD_CORE 1218 select LPC_SCH 1219 help 1220 Hardware driver for the watchdog timer built into the Intel 1221 Atom E6XX (TunnelCreek) processor. 1222 1223 To compile this driver as a module, choose M here: the 1224 module will be called ie6xx_wdt. 1225 1226config INTEL_SCU_WATCHDOG 1227 bool "Intel SCU Watchdog for Mobile Platforms" 1228 depends on X86_INTEL_MID 1229 help 1230 Hardware driver for the watchdog time built into the Intel SCU 1231 for Intel Mobile Platforms. 1232 1233 To compile this driver as a module, choose M here. 1234 1235config INTEL_MID_WATCHDOG 1236 tristate "Intel MID Watchdog Timer" 1237 depends on X86_INTEL_MID 1238 select WATCHDOG_CORE 1239 help 1240 Watchdog timer driver built into the Intel SCU for Intel MID 1241 Platforms. 1242 1243 This driver currently supports only the watchdog evolution 1244 implementation in SCU, available for Merrifield generation. 1245 1246 To compile this driver as a module, choose M here. 1247 1248config ITCO_WDT 1249 tristate "Intel TCO Timer/Watchdog" 1250 depends on (X86 || IA64) && PCI 1251 select WATCHDOG_CORE 1252 depends on I2C || I2C=n 1253 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1254 select LPC_ICH if !EXPERT 1255 select I2C_I801 if !EXPERT && I2C 1256 help 1257 Hardware driver for the intel TCO timer based watchdog devices. 1258 These drivers are included in the Intel 82801 I/O Controller 1259 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1260 controller hub. 1261 1262 The TCO (Total Cost of Ownership) timer is a watchdog timer 1263 that will reboot the machine after its second expiration. The 1264 expiration time can be configured with the "heartbeat" parameter. 1265 1266 On some motherboards the driver may fail to reset the chipset's 1267 NO_REBOOT flag which prevents the watchdog from rebooting the 1268 machine. If this is the case you will get a kernel message like 1269 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1270 1271 To compile this driver as a module, choose M here: the 1272 module will be called iTCO_wdt. 1273 1274config ITCO_VENDOR_SUPPORT 1275 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1276 depends on ITCO_WDT 1277 help 1278 Add vendor specific support to the intel TCO timer based watchdog 1279 devices. At this moment we only have additional support for some 1280 SuperMicro Inc. motherboards. 1281 1282config IT8712F_WDT 1283 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1284 depends on X86 1285 help 1286 This is the driver for the built-in watchdog timer on the IT8712F 1287 Super I/0 chipset used on many motherboards. 1288 1289 If the driver does not work, then make sure that the game port in 1290 the BIOS is enabled. 1291 1292 To compile this driver as a module, choose M here: the 1293 module will be called it8712f_wdt. 1294 1295config IT87_WDT 1296 tristate "IT87 Watchdog Timer" 1297 depends on X86 1298 select WATCHDOG_CORE 1299 help 1300 This is the driver for the hardware watchdog on the ITE IT8607, 1301 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1302 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1303 IT8783 Super I/O chips. 1304 1305 This watchdog simply watches your kernel to make sure it doesn't 1306 freeze, and if it does, it reboots your computer after a certain 1307 amount of time. 1308 1309 To compile this driver as a module, choose M here: the module will 1310 be called it87_wdt. 1311 1312config HP_WATCHDOG 1313 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1314 select WATCHDOG_CORE 1315 depends on X86 && PCI 1316 help 1317 A software monitoring watchdog and NMI handling driver. This driver 1318 will detect lockups and provide a stack trace. This is a driver that 1319 will only load on an HP ProLiant system with a minimum of iLO2 support. 1320 To compile this driver as a module, choose M here: the module will be 1321 called hpwdt. 1322 1323config HPWDT_NMI_DECODING 1324 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1325 depends on HP_WATCHDOG 1326 default y 1327 help 1328 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1329 "Generate NMI to System" virtual button. When an NMI is claimed 1330 by the driver, panic is called. 1331 1332config KEMPLD_WDT 1333 tristate "Kontron COM Watchdog Timer" 1334 depends on MFD_KEMPLD 1335 select WATCHDOG_CORE 1336 help 1337 Support for the PLD watchdog on some Kontron ETX and COMexpress 1338 (ETXexpress) modules 1339 1340 This driver can also be built as a module. If so, the module will be 1341 called kempld_wdt. 1342 1343config SC1200_WDT 1344 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1345 depends on X86 1346 help 1347 This is a driver for National Semiconductor PC87307/PC97307 hardware 1348 watchdog cards as found on the SC1200. This watchdog is mainly used 1349 for power management purposes and can be used to power down the device 1350 during inactivity periods (includes interrupt activity monitoring). 1351 1352 To compile this driver as a module, choose M here: the 1353 module will be called sc1200wdt. 1354 1355 Most people will say N. 1356 1357config SCx200_WDT 1358 tristate "National Semiconductor SCx200 Watchdog" 1359 depends on SCx200 && PCI 1360 help 1361 Enable the built-in watchdog timer support on the National 1362 Semiconductor SCx200 processors. 1363 1364 If compiled as a module, it will be called scx200_wdt. 1365 1366config PC87413_WDT 1367 tristate "NS PC87413 watchdog" 1368 depends on X86 1369 help 1370 This is the driver for the hardware watchdog on the PC87413 chipset 1371 This watchdog simply watches your kernel to make sure it doesn't 1372 freeze, and if it does, it reboots your computer after a certain 1373 amount of time. 1374 1375 To compile this driver as a module, choose M here: the 1376 module will be called pc87413_wdt. 1377 1378 Most people will say N. 1379 1380config NV_TCO 1381 tristate "nVidia TCO Timer/Watchdog" 1382 depends on X86 && PCI 1383 help 1384 Hardware driver for the TCO timer built into the nVidia Hub family 1385 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1386 watchdog timer that will reboot the machine after its second 1387 expiration. The expiration time can be configured with the 1388 "heartbeat" parameter. 1389 1390 On some motherboards the driver may fail to reset the chipset's 1391 NO_REBOOT flag which prevents the watchdog from rebooting the 1392 machine. If this is the case you will get a kernel message like 1393 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1394 1395 To compile this driver as a module, choose M here: the 1396 module will be called nv_tco. 1397 1398config RDC321X_WDT 1399 tristate "RDC R-321x SoC watchdog" 1400 depends on X86_RDC321X || COMPILE_TEST 1401 depends on PCI 1402 help 1403 This is the driver for the built in hardware watchdog 1404 in the RDC R-321x SoC. 1405 1406 To compile this driver as a module, choose M here: the 1407 module will be called rdc321x_wdt. 1408 1409config 60XX_WDT 1410 tristate "SBC-60XX Watchdog Timer" 1411 depends on X86 1412 help 1413 This driver can be used with the watchdog timer found on some 1414 single board computers, namely the 6010 PII based computer. 1415 It may well work with other cards. It reads port 0x443 to enable 1416 and re-set the watchdog timer, and reads port 0x45 to disable 1417 the watchdog. If you have a card that behave in similar ways, 1418 you can probably make this driver work with your card as well. 1419 1420 You can compile this driver directly into the kernel, or use 1421 it as a module. The module will be called sbc60xxwdt. 1422 1423config SBC8360_WDT 1424 tristate "SBC8360 Watchdog Timer" 1425 depends on X86_32 1426 help 1427 1428 This is the driver for the hardware watchdog on the SBC8360 Single 1429 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1430 1431 To compile this driver as a module, choose M here: the 1432 module will be called sbc8360. 1433 1434 Most people will say N. 1435 1436config SBC7240_WDT 1437 tristate "SBC Nano 7240 Watchdog Timer" 1438 depends on X86_32 && !UML 1439 help 1440 This is the driver for the hardware watchdog found on the IEI 1441 single board computers EPIC Nano 7240 (and likely others). This 1442 watchdog simply watches your kernel to make sure it doesn't freeze, 1443 and if it does, it reboots your computer after a certain amount of 1444 time. 1445 1446 To compile this driver as a module, choose M here: the 1447 module will be called sbc7240_wdt. 1448 1449config CPU5_WDT 1450 tristate "SMA CPU5 Watchdog" 1451 depends on X86 1452 help 1453 TBD. 1454 To compile this driver as a module, choose M here: the 1455 module will be called cpu5wdt. 1456 1457config SMSC_SCH311X_WDT 1458 tristate "SMSC SCH311X Watchdog Timer" 1459 depends on X86 1460 help 1461 This is the driver for the hardware watchdog timer on the 1462 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1463 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1464 serial ports). 1465 1466 To compile this driver as a module, choose M here: the 1467 module will be called sch311x_wdt. 1468 1469config SMSC37B787_WDT 1470 tristate "Winbond SMsC37B787 Watchdog Timer" 1471 depends on X86 1472 help 1473 This is the driver for the hardware watchdog component on the 1474 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1475 from Vision Systems and maybe others. 1476 1477 This watchdog simply watches your kernel to make sure it doesn't 1478 freeze, and if it does, it reboots your computer after a certain 1479 amount of time. 1480 1481 Usually a userspace daemon will notify the kernel WDT driver that 1482 userspace is still alive, at regular intervals. 1483 1484 To compile this driver as a module, choose M here: the 1485 module will be called smsc37b787_wdt. 1486 1487 Most people will say N. 1488 1489config TQMX86_WDT 1490 tristate "TQ-Systems TQMX86 Watchdog Timer" 1491 depends on X86 1492 select WATCHDOG_CORE 1493 help 1494 This is the driver for the hardware watchdog timer in the TQMX86 IO 1495 controller found on some of their ComExpress Modules. 1496 1497 To compile this driver as a module, choose M here; the module 1498 will be called tqmx86_wdt. 1499 1500 Most people will say N. 1501 1502config VIA_WDT 1503 tristate "VIA Watchdog Timer" 1504 depends on X86 && PCI 1505 select WATCHDOG_CORE 1506 help 1507 This is the driver for the hardware watchdog timer on VIA 1508 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1509 1510 To compile this driver as a module, choose M here; the module 1511 will be called via_wdt. 1512 1513 Most people will say N. 1514 1515config W83627HF_WDT 1516 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1517 depends on X86 1518 select WATCHDOG_CORE 1519 help 1520 This is the driver for the hardware watchdog on the following 1521 Super I/O chips. 1522 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1523 W83637HF 1524 W83667HG/HG-B 1525 W83687THF 1526 W83697HF 1527 W83697UG 1528 NCT6775 1529 NCT6776 1530 NCT6779 1531 NCT6791 1532 NCT6792 1533 NCT6102D/04D/06D 1534 NCT6116D 1535 1536 This watchdog simply watches your kernel to make sure it doesn't 1537 freeze, and if it does, it reboots your computer after a certain 1538 amount of time. 1539 1540 To compile this driver as a module, choose M here: the 1541 module will be called w83627hf_wdt. 1542 1543 Most people will say N. 1544 1545config W83877F_WDT 1546 tristate "W83877F (EMACS) Watchdog Timer" 1547 depends on X86 1548 help 1549 This is the driver for the hardware watchdog on the W83877F chipset 1550 as used in EMACS PC-104 motherboards (and likely others). This 1551 watchdog simply watches your kernel to make sure it doesn't freeze, 1552 and if it does, it reboots your computer after a certain amount of 1553 time. 1554 1555 To compile this driver as a module, choose M here: the 1556 module will be called w83877f_wdt. 1557 1558 Most people will say N. 1559 1560config W83977F_WDT 1561 tristate "W83977F (PCM-5335) Watchdog Timer" 1562 depends on X86 1563 help 1564 This is the driver for the hardware watchdog on the W83977F I/O chip 1565 as used in AAEON's PCM-5335 SBC (and likely others). This 1566 watchdog simply watches your kernel to make sure it doesn't freeze, 1567 and if it does, it reboots your computer after a certain amount of 1568 time. 1569 1570 To compile this driver as a module, choose M here: the 1571 module will be called w83977f_wdt. 1572 1573config MACHZ_WDT 1574 tristate "ZF MachZ Watchdog" 1575 depends on X86 1576 help 1577 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1578 N. This is the driver for the watchdog timer built-in on that 1579 processor using ZF-Logic interface. This watchdog simply watches 1580 your kernel to make sure it doesn't freeze, and if it does, it 1581 reboots your computer after a certain amount of time. 1582 1583 To compile this driver as a module, choose M here: the 1584 module will be called machzwd. 1585 1586config SBC_EPX_C3_WATCHDOG 1587 tristate "Winsystems SBC EPX-C3 watchdog" 1588 depends on X86 1589 help 1590 This is the driver for the built-in watchdog timer on the EPX-C3 1591 Single-board computer made by Winsystems, Inc. 1592 1593 *Note*: This hardware watchdog is not probeable and thus there 1594 is no way to know if writing to its IO address will corrupt 1595 your system or have any real effect. The only way to be sure 1596 that this driver does what you want is to make sure you 1597 are running it on an EPX-C3 from Winsystems with the watchdog 1598 timer at IO address 0x1ee and 0x1ef. It will write to both those 1599 IO ports. Basically, the assumption is made that if you compile 1600 this driver into your kernel and/or load it as a module, that you 1601 know what you are doing and that you are in fact running on an 1602 EPX-C3 board! 1603 1604 To compile this driver as a module, choose M here: the 1605 module will be called sbc_epx_c3. 1606 1607config INTEL_MEI_WDT 1608 tristate "Intel MEI iAMT Watchdog" 1609 depends on INTEL_MEI && X86 1610 select WATCHDOG_CORE 1611 help 1612 A device driver for the Intel MEI iAMT watchdog. 1613 1614 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1615 Whenever the OS hangs or crashes, iAMT will send an event 1616 to any subscriber to this event. The watchdog doesn't reset the 1617 the platform. 1618 1619 To compile this driver as a module, choose M here: 1620 the module will be called mei_wdt. 1621 1622config NI903X_WDT 1623 tristate "NI 903x/913x Watchdog" 1624 depends on X86 && ACPI 1625 select WATCHDOG_CORE 1626 help 1627 This is the driver for the watchdog timer on the National Instruments 1628 903x/913x real-time controllers. 1629 1630 To compile this driver as a module, choose M here: the module will be 1631 called ni903x_wdt. 1632 1633config NIC7018_WDT 1634 tristate "NIC7018 Watchdog" 1635 depends on X86 && ACPI 1636 select WATCHDOG_CORE 1637 help 1638 Support for National Instruments NIC7018 Watchdog. 1639 1640 To compile this driver as a module, choose M here: the module will be 1641 called nic7018_wdt. 1642 1643# M68K Architecture 1644 1645config M54xx_WATCHDOG 1646 tristate "MCF54xx watchdog support" 1647 depends on M548x 1648 help 1649 To compile this driver as a module, choose M here: the 1650 module will be called m54xx_wdt. 1651 1652# MicroBlaze Architecture 1653 1654# MIPS Architecture 1655 1656config ATH79_WDT 1657 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1658 depends on ATH79 || (ARM && COMPILE_TEST) 1659 help 1660 Hardware driver for the built-in watchdog timer on the Atheros 1661 AR71XX/AR724X/AR913X SoCs. 1662 1663config BCM47XX_WDT 1664 tristate "Broadcom BCM47xx Watchdog Timer" 1665 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1666 select WATCHDOG_CORE 1667 help 1668 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1669 1670config RC32434_WDT 1671 tristate "IDT RC32434 SoC Watchdog Timer" 1672 depends on MIKROTIK_RB532 1673 help 1674 Hardware driver for the IDT RC32434 SoC built-in 1675 watchdog timer. 1676 1677 To compile this driver as a module, choose M here: the 1678 module will be called rc32434_wdt. 1679 1680config INDYDOG 1681 tristate "Indy/I2 Hardware Watchdog" 1682 depends on SGI_HAS_INDYDOG 1683 help 1684 Hardware driver for the Indy's/I2's watchdog. This is a 1685 watchdog timer that will reboot the machine after a 60 second 1686 timer expired and no process has written to /dev/watchdog during 1687 that time. 1688 1689config JZ4740_WDT 1690 tristate "Ingenic jz4740 SoC hardware watchdog" 1691 depends on MIPS 1692 depends on COMMON_CLK 1693 select WATCHDOG_CORE 1694 select MFD_SYSCON 1695 help 1696 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1697 1698config WDT_MTX1 1699 tristate "MTX-1 Hardware Watchdog" 1700 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1701 help 1702 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1703 will reboot the machine after a 100 seconds timer expired. 1704 1705config PNX833X_WDT 1706 tristate "PNX833x Hardware Watchdog" 1707 depends on SOC_PNX8335 1708 depends on BROKEN 1709 help 1710 Hardware driver for the PNX833x's watchdog. This is a 1711 watchdog timer that will reboot the machine after a programmable 1712 timer has expired and no process has written to /dev/watchdog during 1713 that time. 1714 1715config SIBYTE_WDOG 1716 tristate "Sibyte SoC hardware watchdog" 1717 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1718 help 1719 Watchdog driver for the built in watchdog hardware in Sibyte 1720 SoC processors. There are apparently two watchdog timers 1721 on such processors; this driver supports only the first one, 1722 because currently Linux only supports exporting one watchdog 1723 to userspace. 1724 1725 To compile this driver as a loadable module, choose M here. 1726 The module will be called sb_wdog. 1727 1728config AR7_WDT 1729 tristate "TI AR7 Watchdog Timer" 1730 depends on AR7 || (MIPS && COMPILE_TEST) 1731 help 1732 Hardware driver for the TI AR7 Watchdog Timer. 1733 1734config TXX9_WDT 1735 tristate "Toshiba TXx9 Watchdog Timer" 1736 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1737 select WATCHDOG_CORE 1738 help 1739 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1740 1741config OCTEON_WDT 1742 tristate "Cavium OCTEON SOC family Watchdog Timer" 1743 depends on CAVIUM_OCTEON_SOC 1744 default y 1745 select WATCHDOG_CORE 1746 select EXPORT_UASM if OCTEON_WDT = m 1747 help 1748 Hardware driver for OCTEON's on chip watchdog timer. 1749 Enables the watchdog for all cores running Linux. It 1750 installs a NMI handler and pokes the watchdog based on an 1751 interrupt. On first expiration of the watchdog, the 1752 interrupt handler pokes it. The second expiration causes an 1753 NMI that prints a message. The third expiration causes a 1754 global soft reset. 1755 1756 When userspace has /dev/watchdog open, no poking is done 1757 from the first interrupt, it is then only poked when the 1758 device is written. 1759 1760config BCM63XX_WDT 1761 tristate "Broadcom BCM63xx hardware watchdog" 1762 depends on BCM63XX 1763 help 1764 Watchdog driver for the built in watchdog hardware in Broadcom 1765 BCM63xx SoC. 1766 1767 To compile this driver as a loadable module, choose M here. 1768 The module will be called bcm63xx_wdt. 1769 1770config BCM2835_WDT 1771 tristate "Broadcom BCM2835 hardware watchdog" 1772 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1773 select WATCHDOG_CORE 1774 help 1775 Watchdog driver for the built in watchdog hardware in Broadcom 1776 BCM2835 SoC. 1777 1778 To compile this driver as a loadable module, choose M here. 1779 The module will be called bcm2835_wdt. 1780 1781config BCM_KONA_WDT 1782 tristate "BCM Kona Watchdog" 1783 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1784 select WATCHDOG_CORE 1785 help 1786 Support for the watchdog timer on the following Broadcom BCM281xx 1787 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1788 BCM28155 variants. 1789 1790 Say 'Y' or 'M' here to enable the driver. The module will be called 1791 bcm_kona_wdt. 1792 1793config BCM_KONA_WDT_DEBUG 1794 bool "DEBUGFS support for BCM Kona Watchdog" 1795 depends on BCM_KONA_WDT 1796 help 1797 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1798 access to the driver's internal data structures as well as watchdog 1799 timer hardware registres. 1800 1801 If in doubt, say 'N'. 1802 1803config BCM7038_WDT 1804 tristate "BCM7038 Watchdog" 1805 select WATCHDOG_CORE 1806 depends on HAS_IOMEM 1807 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1808 help 1809 Watchdog driver for the built-in hardware in Broadcom 7038 and 1810 later SoCs used in set-top boxes. BCM7038 was made public 1811 during the 2004 CES, and since then, many Broadcom chips use this 1812 watchdog block, including some cable modem chips. 1813 1814config IMGPDC_WDT 1815 tristate "Imagination Technologies PDC Watchdog Timer" 1816 depends on HAS_IOMEM 1817 depends on MIPS || COMPILE_TEST 1818 select WATCHDOG_CORE 1819 help 1820 Driver for Imagination Technologies PowerDown Controller 1821 Watchdog Timer. 1822 1823 To compile this driver as a loadable module, choose M here. 1824 The module will be called imgpdc_wdt. 1825 1826config LANTIQ_WDT 1827 tristate "Lantiq SoC watchdog" 1828 depends on LANTIQ 1829 select WATCHDOG_CORE 1830 help 1831 Hardware driver for the Lantiq SoC Watchdog Timer. 1832 1833config LOONGSON1_WDT 1834 tristate "Loongson1 SoC hardware watchdog" 1835 depends on MACH_LOONGSON32 1836 select WATCHDOG_CORE 1837 help 1838 Hardware driver for the Loongson1 SoC Watchdog Timer. 1839 1840config RALINK_WDT 1841 tristate "Ralink SoC watchdog" 1842 select WATCHDOG_CORE 1843 depends on RALINK 1844 help 1845 Hardware driver for the Ralink SoC Watchdog Timer. 1846 1847config MT7621_WDT 1848 tristate "Mediatek SoC watchdog" 1849 select WATCHDOG_CORE 1850 depends on SOC_MT7620 || SOC_MT7621 1851 help 1852 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1853 1854config PIC32_WDT 1855 tristate "Microchip PIC32 hardware watchdog" 1856 select WATCHDOG_CORE 1857 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1858 help 1859 Watchdog driver for the built in watchdog hardware in a PIC32. 1860 1861 Configuration bits must be set appropriately for the watchdog to be 1862 controlled by this driver. 1863 1864 To compile this driver as a loadable module, choose M here. 1865 The module will be called pic32-wdt. 1866 1867config PIC32_DMT 1868 tristate "Microchip PIC32 Deadman Timer" 1869 select WATCHDOG_CORE 1870 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1871 help 1872 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1873 timer is typically be used in misson critical and safety critical 1874 applications, where any single failure of the software functionality 1875 and sequencing must be detected. 1876 1877 To compile this driver as a loadable module, choose M here. 1878 The module will be called pic32-dmt. 1879 1880# PARISC Architecture 1881 1882# POWERPC Architecture 1883 1884config GEF_WDT 1885 tristate "GE Watchdog Timer" 1886 depends on GE_FPGA 1887 help 1888 Watchdog timer found in a number of GE single board computers. 1889 1890config MPC5200_WDT 1891 bool "MPC52xx Watchdog Timer" 1892 depends on PPC_MPC52xx || COMPILE_TEST 1893 help 1894 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1895 1896config 8xxx_WDT 1897 tristate "MPC8xxx Platform Watchdog Timer" 1898 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1899 select WATCHDOG_CORE 1900 help 1901 This driver is for a SoC level watchdog that exists on some 1902 Freescale PowerPC processors. So far this driver supports: 1903 - MPC8xx watchdogs 1904 - MPC83xx watchdogs 1905 - MPC86xx watchdogs 1906 1907 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1908 1909config MV64X60_WDT 1910 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1911 depends on MV64X60 || COMPILE_TEST 1912 1913config PIKA_WDT 1914 tristate "PIKA FPGA Watchdog" 1915 depends on WARP || (PPC64 && COMPILE_TEST) 1916 default y 1917 help 1918 This enables the watchdog in the PIKA FPGA. Currently used on 1919 the Warp platform. 1920 1921config BOOKE_WDT 1922 tristate "PowerPC Book-E Watchdog Timer" 1923 depends on BOOKE || 4xx 1924 select WATCHDOG_CORE 1925 help 1926 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1927 MPC85xx SOCs and the IBM PowerPC 440. 1928 1929 Please see Documentation/watchdog/watchdog-api.rst for 1930 more information. 1931 1932config BOOKE_WDT_DEFAULT_TIMEOUT 1933 int "PowerPC Book-E Watchdog Timer Default Timeout" 1934 depends on BOOKE_WDT 1935 default 38 if PPC_FSL_BOOK3E 1936 range 0 63 if PPC_FSL_BOOK3E 1937 default 3 if !PPC_FSL_BOOK3E 1938 range 0 3 if !PPC_FSL_BOOK3E 1939 help 1940 Select the default watchdog timer period to be used by the PowerPC 1941 Book-E watchdog driver. A watchdog "event" occurs when the bit 1942 position represented by this number transitions from zero to one. 1943 1944 For Freescale Book-E processors, this is a number between 0 and 63. 1945 For other Book-E processors, this is a number between 0 and 3. 1946 1947 The value can be overridden by the wdt_period command-line parameter. 1948 1949config MEN_A21_WDT 1950 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1951 select WATCHDOG_CORE 1952 depends on GPIOLIB || COMPILE_TEST 1953 help 1954 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1955 1956 The driver can also be built as a module. If so, the module will be 1957 called mena21_wdt. 1958 1959 If unsure select N here. 1960 1961# PPC64 Architecture 1962 1963config WATCHDOG_RTAS 1964 tristate "RTAS watchdog" 1965 depends on PPC_RTAS 1966 help 1967 This driver adds watchdog support for the RTAS watchdog. 1968 1969 To compile this driver as a module, choose M here. The module 1970 will be called wdrtas. 1971 1972# S390 Architecture 1973 1974config DIAG288_WATCHDOG 1975 tristate "System z diag288 Watchdog" 1976 depends on S390 1977 select WATCHDOG_CORE 1978 help 1979 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1980 provide a virtual watchdog timer to their guest that cause a 1981 user define Control Program command to be executed after a 1982 timeout. 1983 LPAR provides a very similar interface. This driver handles 1984 both. 1985 1986 To compile this driver as a module, choose M here. The module 1987 will be called diag288_wdt. 1988 1989# SUPERH (sh + sh64) Architecture 1990 1991config SH_WDT 1992 tristate "SuperH Watchdog" 1993 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1994 select WATCHDOG_CORE 1995 help 1996 This driver adds watchdog support for the integrated watchdog in the 1997 SuperH processors. If you have one of these processors and wish 1998 to have watchdog support enabled, say Y, otherwise say N. 1999 2000 As a side note, saying Y here will automatically boost HZ to 1000 2001 so that the timer has a chance to clear the overflow counter. On 2002 slower systems (such as the SH-2 and SH-3) this will likely yield 2003 some performance issues. As such, the WDT should be avoided here 2004 unless it is absolutely necessary. 2005 2006 To compile this driver as a module, choose M here: the 2007 module will be called shwdt. 2008 2009# SPARC Architecture 2010 2011# SPARC64 Architecture 2012 2013config WATCHDOG_CP1XXX 2014 tristate "CP1XXX Hardware Watchdog support" 2015 depends on SPARC64 && PCI 2016 help 2017 This is the driver for the hardware watchdog timers present on 2018 Sun Microsystems CompactPCI models CP1400 and CP1500. 2019 2020 To compile this driver as a module, choose M here: the 2021 module will be called cpwatchdog. 2022 2023 If you do not have a CompactPCI model CP1400 or CP1500, or 2024 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2025 you should say N to this option. 2026 2027config WATCHDOG_RIO 2028 tristate "RIO Hardware Watchdog support" 2029 depends on SPARC64 && PCI 2030 help 2031 Say Y here to support the hardware watchdog capability on Sun RIO 2032 machines. The watchdog timeout period is normally one minute but 2033 can be changed with a boot-time parameter. 2034 2035config WATCHDOG_SUN4V 2036 tristate "Sun4v Watchdog support" 2037 select WATCHDOG_CORE 2038 depends on SPARC64 2039 help 2040 Say Y here to support the hypervisor watchdog capability embedded 2041 in the SPARC sun4v architecture. 2042 2043 To compile this driver as a module, choose M here. The module will 2044 be called sun4v_wdt. 2045 2046# XTENSA Architecture 2047 2048# Xen Architecture 2049 2050config XEN_WDT 2051 tristate "Xen Watchdog support" 2052 depends on XEN 2053 select WATCHDOG_CORE 2054 help 2055 Say Y here to support the hypervisor watchdog capability provided 2056 by Xen 4.0 and newer. The watchdog timeout period is normally one 2057 minute but can be changed with a boot-time parameter. 2058 2059config UML_WATCHDOG 2060 tristate "UML watchdog" 2061 depends on UML || COMPILE_TEST 2062 2063# 2064# ISA-based Watchdog Cards 2065# 2066 2067comment "ISA-based Watchdog Cards" 2068 depends on ISA 2069 2070config PCWATCHDOG 2071 tristate "Berkshire Products ISA-PC Watchdog" 2072 depends on ISA 2073 help 2074 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2075 This card simply watches your kernel to make sure it doesn't freeze, 2076 and if it does, it reboots your computer after a certain amount of 2077 time. This driver is like the WDT501 driver but for different 2078 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2079 watchdog cards can be ordered from <http://www.berkprod.com/>. 2080 2081 To compile this driver as a module, choose M here: the 2082 module will be called pcwd. 2083 2084 Most people will say N. 2085 2086config MIXCOMWD 2087 tristate "Mixcom Watchdog" 2088 depends on ISA 2089 help 2090 This is a driver for the Mixcom hardware watchdog cards. This 2091 watchdog simply watches your kernel to make sure it doesn't freeze, 2092 and if it does, it reboots your computer after a certain amount of 2093 time. 2094 2095 To compile this driver as a module, choose M here: the 2096 module will be called mixcomwd. 2097 2098 Most people will say N. 2099 2100config WDT 2101 tristate "WDT Watchdog timer" 2102 depends on ISA 2103 help 2104 If you have a WDT500P or WDT501P watchdog board, say Y here, 2105 otherwise N. It is not possible to probe for this board, which means 2106 that you have to inform the kernel about the IO port and IRQ that 2107 is needed (you can do this via the io and irq parameters) 2108 2109 To compile this driver as a module, choose M here: the 2110 module will be called wdt. 2111 2112# 2113# PCI-based Watchdog Cards 2114# 2115 2116comment "PCI-based Watchdog Cards" 2117 depends on PCI 2118 2119config PCIPCWATCHDOG 2120 tristate "Berkshire Products PCI-PC Watchdog" 2121 depends on PCI 2122 help 2123 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2124 This card simply watches your kernel to make sure it doesn't freeze, 2125 and if it does, it reboots your computer after a certain amount of 2126 time. The card can also monitor the internal temperature of the PC. 2127 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2128 2129 To compile this driver as a module, choose M here: the 2130 module will be called pcwd_pci. 2131 2132 Most people will say N. 2133 2134config WDTPCI 2135 tristate "PCI-WDT500/501 Watchdog timer" 2136 depends on PCI 2137 help 2138 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2139 2140 If you have a PCI-WDT501 watchdog board then you can enable the 2141 temperature sensor by setting the type parameter to 501. 2142 2143 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2144 can do this via the tachometer parameter. Only do this if you have a 2145 fan tachometer actually set up. 2146 2147 To compile this driver as a module, choose M here: the 2148 module will be called wdt_pci. 2149 2150# 2151# USB-based Watchdog Cards 2152# 2153 2154comment "USB-based Watchdog Cards" 2155 depends on USB 2156 2157config USBPCWATCHDOG 2158 tristate "Berkshire Products USB-PC Watchdog" 2159 depends on USB 2160 help 2161 This is the driver for the Berkshire Products USB-PC Watchdog card. 2162 This card simply watches your kernel to make sure it doesn't freeze, 2163 and if it does, it reboots your computer after a certain amount of 2164 time. The card can also monitor the internal temperature of the PC. 2165 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2166 2167 To compile this driver as a module, choose M here: the 2168 module will be called pcwd_usb. 2169 2170 Most people will say N. 2171 2172endif # WATCHDOG 2173