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 select WATCHDOG_CORE 211 help 212 Support for the watchdog in the DA9062 and DA9061 PMICs. 213 214 This driver can be built as a module. The module name is da9062_wdt. 215 216config GPIO_WATCHDOG 217 tristate "Watchdog device controlled through GPIO-line" 218 depends on OF_GPIO 219 select WATCHDOG_CORE 220 help 221 If you say yes here you get support for watchdog device 222 controlled through GPIO-line. 223 224config GPIO_WATCHDOG_ARCH_INITCALL 225 bool "Register the watchdog as early as possible" 226 depends on GPIO_WATCHDOG=y 227 help 228 In some situations, the default initcall level (module_init) 229 in not early enough in the boot process to avoid the watchdog 230 to be triggered. 231 If you say yes here, the initcall level would be raised to 232 arch_initcall. 233 If in doubt, say N. 234 235config MENF21BMC_WATCHDOG 236 tristate "MEN 14F021P00 BMC Watchdog" 237 depends on MFD_MENF21BMC || COMPILE_TEST 238 depends on I2C 239 select WATCHDOG_CORE 240 help 241 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 242 243 This driver can also be built as a module. If so the module 244 will be called menf21bmc_wdt. 245 246config MENZ069_WATCHDOG 247 tristate "MEN 16Z069 Watchdog" 248 depends on MCB 249 select WATCHDOG_CORE 250 help 251 Say Y here to include support for the MEN 16Z069 Watchdog. 252 253 This driver can also be built as a module. If so the module 254 will be called menz069_wdt. 255 256config TANGOX_WATCHDOG 257 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 258 select WATCHDOG_CORE 259 depends on ARCH_TANGO || COMPILE_TEST 260 depends on HAS_IOMEM 261 help 262 Support for the watchdog in Sigma Designs SMP86xx (tango3) 263 and SMP87xx (tango4) family chips. 264 265 This driver can be built as a module. The module name is tangox_wdt. 266 267config WDAT_WDT 268 tristate "ACPI Watchdog Action Table (WDAT)" 269 depends on ACPI 270 select WATCHDOG_CORE 271 select ACPI_WATCHDOG 272 help 273 This driver adds support for systems with ACPI Watchdog Action 274 Table (WDAT) table. Servers typically have this but it can be 275 found on some desktop machines as well. This driver will take 276 over the native iTCO watchdog driver found on many Intel CPUs. 277 278 To compile this driver as module, choose M here: the module will 279 be called wdat_wdt. 280 281config WM831X_WATCHDOG 282 tristate "WM831x watchdog" 283 depends on MFD_WM831X 284 select WATCHDOG_CORE 285 help 286 Support for the watchdog in the WM831x AudioPlus PMICs. When 287 the watchdog triggers the system will be reset. 288 289config WM8350_WATCHDOG 290 tristate "WM8350 watchdog" 291 depends on MFD_WM8350 292 select WATCHDOG_CORE 293 help 294 Support for the watchdog in the WM8350 AudioPlus PMIC. When 295 the watchdog triggers the system will be reset. 296 297config XILINX_WATCHDOG 298 tristate "Xilinx Watchdog timer" 299 depends on HAS_IOMEM 300 select WATCHDOG_CORE 301 help 302 Watchdog driver for the xps_timebase_wdt ip core. 303 304 To compile this driver as a module, choose M here: the 305 module will be called of_xilinx_wdt. 306 307config ZIIRAVE_WATCHDOG 308 tristate "Zodiac RAVE Watchdog Timer" 309 depends on I2C 310 select WATCHDOG_CORE 311 help 312 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 313 Processor. 314 315 To compile this driver as a module, choose M here: the 316 module will be called ziirave_wdt. 317 318config RAVE_SP_WATCHDOG 319 tristate "RAVE SP Watchdog timer" 320 depends on RAVE_SP_CORE 321 depends on NVMEM || !NVMEM 322 select WATCHDOG_CORE 323 help 324 Support for the watchdog on RAVE SP device. 325 326config MLX_WDT 327 tristate "Mellanox Watchdog" 328 depends on MELLANOX_PLATFORM 329 select WATCHDOG_CORE 330 select REGMAP 331 help 332 This is the driver for the hardware watchdog on Mellanox systems. 333 If you are going to use it, say Y here, otherwise N. 334 This driver can be used together with the watchdog daemon. 335 It can also watch your kernel to make sure it doesn't freeze, 336 and if it does, it reboots your system after a certain amount of 337 time. 338 339 To compile this driver as a module, choose M here: the 340 module will be called mlx-wdt. 341 342# ALPHA Architecture 343 344# ARM Architecture 345 346config ARM_SP805_WATCHDOG 347 tristate "ARM SP805 Watchdog" 348 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 349 select WATCHDOG_CORE 350 help 351 ARM Primecell SP805 Watchdog timer. This will reboot your system when 352 the timeout is reached. 353 354config ARM_SBSA_WATCHDOG 355 tristate "ARM SBSA Generic Watchdog" 356 depends on ARM64 357 depends on ARM_ARCH_TIMER 358 select WATCHDOG_CORE 359 help 360 ARM SBSA Generic Watchdog has two stage timeouts: 361 the first signal (WS0) is for alerting the system by interrupt, 362 the second one (WS1) is a real hardware reset. 363 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 364 365 This driver can operate ARM SBSA Generic Watchdog as a single stage 366 or a two stages watchdog, it depends on the module parameter "action". 367 368 Note: the maximum timeout in the two stages mode is half of that in 369 the single stage mode. 370 371 To compile this driver as module, choose M here: The module 372 will be called sbsa_gwdt. 373 374config ARMADA_37XX_WATCHDOG 375 tristate "Armada 37xx watchdog" 376 depends on ARCH_MVEBU || COMPILE_TEST 377 select MFD_SYSCON 378 select WATCHDOG_CORE 379 help 380 Say Y here to include support for the watchdog timer found on 381 Marvell Armada 37xx SoCs. 382 To compile this driver as a module, choose M here: the 383 module will be called armada_37xx_wdt. 384 385config ASM9260_WATCHDOG 386 tristate "Alphascale ASM9260 watchdog" 387 depends on MACH_ASM9260 || COMPILE_TEST 388 depends on OF 389 select WATCHDOG_CORE 390 select RESET_CONTROLLER 391 help 392 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 393 system when the timeout is reached. 394 395config AT91RM9200_WATCHDOG 396 tristate "AT91RM9200 watchdog" 397 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 398 help 399 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 400 system when the timeout is reached. 401 402config AT91SAM9X_WATCHDOG 403 tristate "AT91SAM9X / AT91CAP9 watchdog" 404 depends on ARCH_AT91 || COMPILE_TEST 405 select WATCHDOG_CORE 406 help 407 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 408 reboot your system when the timeout is reached. 409 410config SAMA5D4_WATCHDOG 411 tristate "Atmel SAMA5D4 Watchdog Timer" 412 depends on ARCH_AT91 || COMPILE_TEST 413 select WATCHDOG_CORE 414 help 415 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 416 Its Watchdog Timer Mode Register can be written more than once. 417 This will reboot your system when the timeout is reached. 418 419config CADENCE_WATCHDOG 420 tristate "Cadence Watchdog Timer" 421 depends on HAS_IOMEM 422 select WATCHDOG_CORE 423 help 424 Say Y here if you want to include support for the watchdog 425 timer in the Xilinx Zynq. 426 427config 21285_WATCHDOG 428 tristate "DC21285 watchdog" 429 depends on FOOTBRIDGE 430 help 431 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 432 here if you wish to use this. Alternatively say M to compile the 433 driver as a module, which will be called wdt285. 434 435 This driver does not work on all machines. In particular, early CATS 436 boards have hardware problems that will cause the machine to simply 437 lock up if the watchdog fires. 438 439 "If in doubt, leave it out" - say N. 440 441config 977_WATCHDOG 442 tristate "NetWinder WB83C977 watchdog" 443 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 444 help 445 Say Y here to include support for the WB977 watchdog included in 446 NetWinder machines. Alternatively say M to compile the driver as 447 a module, which will be called wdt977. 448 449 Not sure? It's safe to say N. 450 451config FTWDT010_WATCHDOG 452 tristate "Faraday Technology FTWDT010 watchdog" 453 depends on ARM || COMPILE_TEST 454 select WATCHDOG_CORE 455 default ARCH_GEMINI 456 help 457 Say Y here if to include support for the Faraday Technology 458 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 459 family of devices. 460 461 To compile this driver as a module, choose M here: the 462 module will be called ftwdt010_wdt. 463 464config IXP4XX_WATCHDOG 465 tristate "IXP4xx Watchdog" 466 depends on ARCH_IXP4XX 467 help 468 Say Y here if to include support for the watchdog timer 469 in the Intel IXP4xx network processors. This driver can 470 be built as a module by choosing M. The module will 471 be called ixp4xx_wdt. 472 473 Note: The internal IXP4xx watchdog does a soft CPU reset 474 which doesn't reset any peripherals. There are circumstances 475 where the watchdog will fail to reset the board correctly 476 (e.g., if the boot ROM is in an unreadable state). 477 478 Say N if you are unsure. 479 480config HAVE_S3C2410_WATCHDOG 481 bool 482 help 483 This will include watchdog timer support for Samsung SoCs. If 484 you want to include watchdog support for any machine, kindly 485 select this in the respective mach-XXXX/Kconfig file. 486 487config S3C2410_WATCHDOG 488 tristate "S3C2410 Watchdog" 489 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 490 select WATCHDOG_CORE 491 select MFD_SYSCON if ARCH_EXYNOS 492 help 493 Watchdog timer block in the Samsung SoCs. This will reboot 494 the system when the timer expires with the watchdog enabled. 495 496 The driver is limited by the speed of the system's PCLK 497 signal, so with reasonably fast systems (PCLK around 50-66MHz) 498 then watchdog intervals of over approximately 20seconds are 499 unavailable. 500 501 The driver can be built as a module by choosing M, and will 502 be called s3c2410_wdt 503 504config SA1100_WATCHDOG 505 tristate "SA1100/PXA2xx watchdog" 506 depends on ARCH_SA1100 || ARCH_PXA 507 help 508 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 509 reboot your system when timeout is reached. 510 511 NOTE: once enabled, this timer cannot be disabled. 512 513 To compile this driver as a module, choose M here: the 514 module will be called sa1100_wdt. 515 516config DW_WATCHDOG 517 tristate "Synopsys DesignWare watchdog" 518 depends on HAS_IOMEM 519 select WATCHDOG_CORE 520 help 521 Say Y here if to include support for the Synopsys DesignWare 522 watchdog timer found in many chips. 523 To compile this driver as a module, choose M here: the 524 module will be called dw_wdt. 525 526config EP93XX_WATCHDOG 527 tristate "EP93xx Watchdog" 528 depends on ARCH_EP93XX || COMPILE_TEST 529 select WATCHDOG_CORE 530 help 531 Say Y here if to include support for the watchdog timer 532 embedded in the Cirrus Logic EP93xx family of devices. 533 534 To compile this driver as a module, choose M here: the 535 module will be called ep93xx_wdt. 536 537config OMAP_WATCHDOG 538 tristate "OMAP Watchdog" 539 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 540 select WATCHDOG_CORE 541 help 542 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 543 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 544 545config PNX4008_WATCHDOG 546 tristate "LPC32XX Watchdog" 547 depends on ARCH_LPC32XX || COMPILE_TEST 548 select WATCHDOG_CORE 549 help 550 Say Y here if to include support for the watchdog timer 551 in the LPC32XX processor. 552 This driver can be built as a module by choosing M. The module 553 will be called pnx4008_wdt. 554 555 Say N if you are unsure. 556 557config IOP_WATCHDOG 558 tristate "IOP Watchdog" 559 depends on ARCH_IOP13XX 560 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 561 help 562 Say Y here if to include support for the watchdog timer 563 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 564 be built as a module by choosing M. The module will 565 be called iop_wdt. 566 567 Note: The IOP13XX watchdog does an Internal Bus Reset which will 568 affect both cores and the peripherals of the IOP. The ATU-X 569 and/or ATUe configuration registers will remain intact, but if 570 operating as an Root Complex and/or Central Resource, the PCI-X 571 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 572 573config DAVINCI_WATCHDOG 574 tristate "DaVinci watchdog" 575 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 576 select WATCHDOG_CORE 577 help 578 Say Y here if to include support for the watchdog timer 579 in the DaVinci DM644x/DM646x or Keystone processors. 580 To compile this driver as a module, choose M here: the 581 module will be called davinci_wdt. 582 583 NOTE: once enabled, this timer cannot be disabled. 584 Say N if you are unsure. 585 586config ORION_WATCHDOG 587 tristate "Orion watchdog" 588 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 589 depends on ARM 590 select WATCHDOG_CORE 591 help 592 Say Y here if to include support for the watchdog timer 593 in the Marvell Orion5x and Kirkwood ARM SoCs. 594 To compile this driver as a module, choose M here: the 595 module will be called orion_wdt. 596 597config RN5T618_WATCHDOG 598 tristate "Ricoh RN5T618 watchdog" 599 depends on MFD_RN5T618 || COMPILE_TEST 600 select WATCHDOG_CORE 601 help 602 If you say yes here you get support for watchdog on the Ricoh 603 RN5T618 PMIC. 604 605 This driver can also be built as a module. If so, the module 606 will be called rn5t618_wdt. 607 608config SUNXI_WATCHDOG 609 tristate "Allwinner SoCs watchdog support" 610 depends on ARCH_SUNXI || COMPILE_TEST 611 select WATCHDOG_CORE 612 help 613 Say Y here to include support for the watchdog timer 614 in Allwinner SoCs. 615 To compile this driver as a module, choose M here: the 616 module will be called sunxi_wdt. 617 618config COH901327_WATCHDOG 619 bool "ST-Ericsson COH 901 327 watchdog" 620 depends on ARCH_U300 || (ARM && COMPILE_TEST) 621 default y if MACH_U300 622 select WATCHDOG_CORE 623 help 624 Say Y here to include Watchdog timer support for the 625 watchdog embedded into the ST-Ericsson U300 series platforms. 626 This watchdog is used to reset the system and thus cannot be 627 compiled as a module. 628 629config NPCM7XX_WATCHDOG 630 tristate "Nuvoton NPCM750 watchdog" 631 depends on ARCH_NPCM || COMPILE_TEST 632 default y if ARCH_NPCM7XX 633 select WATCHDOG_CORE 634 help 635 Say Y here to include Watchdog timer support for the 636 watchdog embedded into the NPCM7xx. 637 This watchdog is used to reset the system and thus cannot be 638 compiled as a module. 639 640config TWL4030_WATCHDOG 641 tristate "TWL4030 Watchdog" 642 depends on TWL4030_CORE 643 select WATCHDOG_CORE 644 help 645 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 646 watchdog timer support for TWL4030 chips. 647 648config STMP3XXX_RTC_WATCHDOG 649 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 650 depends on RTC_DRV_STMP || COMPILE_TEST 651 select WATCHDOG_CORE 652 help 653 Say Y here to include support for the watchdog timer inside 654 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 655 To compile this driver as a module, choose M here: the 656 module will be called stmp3xxx_rtc_wdt. 657 658config TS4800_WATCHDOG 659 tristate "TS-4800 Watchdog" 660 depends on HAS_IOMEM && OF 661 depends on SOC_IMX51 || COMPILE_TEST 662 select WATCHDOG_CORE 663 select MFD_SYSCON 664 help 665 Technologic Systems TS-4800 has watchdog timer implemented in 666 an external FPGA. Say Y here if you want to support for the 667 watchdog timer on TS-4800 board. 668 669config TS72XX_WATCHDOG 670 tristate "TS-72XX SBC Watchdog" 671 depends on MACH_TS72XX || COMPILE_TEST 672 help 673 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 674 watchdog timer implemented in a external CPLD chip. Say Y here 675 if you want to support for the watchdog timer on TS-72XX boards. 676 677 To compile this driver as a module, choose M here: the 678 module will be called ts72xx_wdt. 679 680config MAX63XX_WATCHDOG 681 tristate "Max63xx watchdog" 682 depends on HAS_IOMEM 683 select WATCHDOG_CORE 684 help 685 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 686 687config MAX77620_WATCHDOG 688 tristate "Maxim Max77620 Watchdog Timer" 689 depends on MFD_MAX77620 || COMPILE_TEST 690 help 691 This is the driver for the Max77620 watchdog timer. 692 Say 'Y' here to enable the watchdog timer support for 693 MAX77620 chips. To compile this driver as a module, 694 choose M here: the module will be called max77620_wdt. 695 696config IMX2_WDT 697 tristate "IMX2+ Watchdog" 698 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 699 select REGMAP_MMIO 700 select WATCHDOG_CORE 701 help 702 This is the driver for the hardware watchdog 703 on the Freescale IMX2 and later processors. 704 If you have one of these processors and wish to have 705 watchdog support enabled, say Y, otherwise say N. 706 707 To compile this driver as a module, choose M here: the 708 module will be called imx2_wdt. 709 710config IMX_SC_WDT 711 tristate "IMX SC Watchdog" 712 depends on HAVE_ARM_SMCCC 713 depends on IMX_SCU 714 select WATCHDOG_CORE 715 help 716 This is the driver for the system controller watchdog 717 on the NXP i.MX SoCs with system controller inside, the 718 watchdog driver will call ARM SMC API and trap into 719 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 720 will request system controller to execute the operations. 721 If you have one of these processors and wish to have 722 watchdog support enabled, say Y, otherwise say N. 723 724 To compile this driver as a module, choose M here: the 725 module will be called imx_sc_wdt. 726 727config IMX7ULP_WDT 728 tristate "IMX7ULP Watchdog" 729 depends on ARCH_MXC || COMPILE_TEST 730 select WATCHDOG_CORE 731 help 732 This is the driver for the hardware watchdog on the Freescale 733 IMX7ULP and later processors. If you have one of these 734 processors and wish to have watchdog support enabled, 735 say Y, otherwise say N. 736 737 To compile this driver as a module, choose M here: the 738 module will be called imx7ulp_wdt. 739 740config UX500_WATCHDOG 741 tristate "ST-Ericsson Ux500 watchdog" 742 depends on MFD_DB8500_PRCMU 743 select WATCHDOG_CORE 744 default y 745 help 746 Say Y here to include Watchdog timer support for the watchdog 747 existing in the prcmu of ST-Ericsson Ux500 series platforms. 748 749 To compile this driver as a module, choose M here: the 750 module will be called ux500_wdt. 751 752config RETU_WATCHDOG 753 tristate "Retu watchdog" 754 depends on MFD_RETU 755 select WATCHDOG_CORE 756 help 757 Retu watchdog driver for Nokia Internet Tablets (770, N800, 758 N810). At least on N800 the watchdog cannot be disabled, so 759 this driver is essential and you should enable it. 760 761 To compile this driver as a module, choose M here: the 762 module will be called retu_wdt. 763 764config MOXART_WDT 765 tristate "MOXART watchdog" 766 depends on ARCH_MOXART || COMPILE_TEST 767 help 768 Say Y here to include Watchdog timer support for the watchdog 769 existing on the MOXA ART SoC series platforms. 770 771 To compile this driver as a module, choose M here: the 772 module will be called moxart_wdt. 773 774config SIRFSOC_WATCHDOG 775 tristate "SiRFSOC watchdog" 776 depends on ARCH_SIRF || COMPILE_TEST 777 select WATCHDOG_CORE 778 default y 779 help 780 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 781 the watchdog triggers the system will be reset. 782 783config ST_LPC_WATCHDOG 784 tristate "STMicroelectronics LPC Watchdog" 785 depends on ARCH_STI || COMPILE_TEST 786 depends on OF 787 select WATCHDOG_CORE 788 help 789 Say Y here to include STMicroelectronics Low Power Controller 790 (LPC) based Watchdog timer support. 791 792 To compile this driver as a module, choose M here: the 793 module will be called st_lpc_wdt. 794 795config TEGRA_WATCHDOG 796 tristate "Tegra watchdog" 797 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 798 select WATCHDOG_CORE 799 help 800 Say Y here to include support for the watchdog timer 801 embedded in NVIDIA Tegra SoCs. 802 803 To compile this driver as a module, choose M here: the 804 module will be called tegra_wdt. 805 806config QCOM_WDT 807 tristate "QCOM watchdog" 808 depends on HAS_IOMEM 809 depends on ARCH_QCOM || COMPILE_TEST 810 select WATCHDOG_CORE 811 help 812 Say Y here to include Watchdog timer support for the watchdog found 813 on QCOM chipsets. Currently supported targets are the MSM8960, 814 APQ8064, and IPQ8064. 815 816 To compile this driver as a module, choose M here: the 817 module will be called qcom_wdt. 818 819config MESON_GXBB_WATCHDOG 820 tristate "Amlogic Meson GXBB SoCs watchdog support" 821 depends on ARCH_MESON || COMPILE_TEST 822 select WATCHDOG_CORE 823 help 824 Say Y here to include support for the watchdog timer 825 in Amlogic Meson GXBB SoCs. 826 To compile this driver as a module, choose M here: the 827 module will be called meson_gxbb_wdt. 828 829config MESON_WATCHDOG 830 tristate "Amlogic Meson SoCs watchdog support" 831 depends on ARCH_MESON || COMPILE_TEST 832 select WATCHDOG_CORE 833 help 834 Say Y here to include support for the watchdog timer 835 in Amlogic Meson SoCs. 836 To compile this driver as a module, choose M here: the 837 module will be called meson_wdt. 838 839config MEDIATEK_WATCHDOG 840 tristate "Mediatek SoCs watchdog support" 841 depends on ARCH_MEDIATEK || COMPILE_TEST 842 select WATCHDOG_CORE 843 help 844 Say Y here to include support for the watchdog timer 845 in Mediatek SoCs. 846 To compile this driver as a module, choose M here: the 847 module will be called mtk_wdt. 848 849config DIGICOLOR_WATCHDOG 850 tristate "Conexant Digicolor SoCs watchdog support" 851 depends on ARCH_DIGICOLOR || COMPILE_TEST 852 select WATCHDOG_CORE 853 help 854 Say Y here to include support for the watchdog timer 855 in Conexant Digicolor SoCs. 856 To compile this driver as a module, choose M here: the 857 module will be called digicolor_wdt. 858 859config LPC18XX_WATCHDOG 860 tristate "LPC18xx/43xx Watchdog" 861 depends on ARCH_LPC18XX || COMPILE_TEST 862 depends on HAS_IOMEM 863 select WATCHDOG_CORE 864 help 865 Say Y here if to include support for the watchdog timer 866 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 867 processors. 868 To compile this driver as a module, choose M here: the 869 module will be called lpc18xx_wdt. 870 871config ATLAS7_WATCHDOG 872 tristate "CSRatlas7 watchdog" 873 depends on ARCH_ATLAS7 || COMPILE_TEST 874 help 875 Say Y here to include Watchdog timer support for the watchdog 876 existing on the CSRatlas7 series platforms. 877 878 To compile this driver as a module, choose M here: the 879 module will be called atlas7_wdt. 880 881config RENESAS_WDT 882 tristate "Renesas WDT Watchdog" 883 depends on ARCH_RENESAS || COMPILE_TEST 884 select WATCHDOG_CORE 885 help 886 This driver adds watchdog support for the integrated watchdogs in the 887 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 888 889config RENESAS_RZAWDT 890 tristate "Renesas RZ/A WDT Watchdog" 891 depends on ARCH_RENESAS || COMPILE_TEST 892 select WATCHDOG_CORE 893 help 894 This driver adds watchdog support for the integrated watchdogs in the 895 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 896 897config ASPEED_WATCHDOG 898 tristate "Aspeed BMC watchdog support" 899 depends on ARCH_ASPEED || COMPILE_TEST 900 select WATCHDOG_CORE 901 help 902 Say Y here to include support for the watchdog timer 903 in Aspeed BMC SoCs. 904 905 This driver is required to reboot the SoC. 906 907 To compile this driver as a module, choose M here: the 908 module will be called aspeed_wdt. 909 910config ZX2967_WATCHDOG 911 tristate "ZTE zx2967 SoCs watchdog support" 912 depends on ARCH_ZX 913 select WATCHDOG_CORE 914 help 915 Say Y here to include support for the watchdog timer 916 in ZTE zx2967 SoCs. 917 To compile this driver as a module, choose M here: the 918 module will be called zx2967_wdt. 919 920config STM32_WATCHDOG 921 tristate "STM32 Independent WatchDoG (IWDG) support" 922 depends on ARCH_STM32 923 select WATCHDOG_CORE 924 default y 925 help 926 Say Y here to include support for the watchdog timer 927 in stm32 SoCs. 928 929 To compile this driver as a module, choose M here: the 930 module will be called stm32_iwdg. 931 932config STPMIC1_WATCHDOG 933 tristate "STPMIC1 PMIC watchdog support" 934 depends on MFD_STPMIC1 935 select WATCHDOG_CORE 936 help 937 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 938 If the watchdog timer expires, stpmic1 will shut down all its power 939 supplies. 940 941 To compile this driver as a module, choose M here: the 942 module will be called spmic1_wdt. 943 944config UNIPHIER_WATCHDOG 945 tristate "UniPhier watchdog support" 946 depends on ARCH_UNIPHIER || COMPILE_TEST 947 depends on OF && MFD_SYSCON 948 select WATCHDOG_CORE 949 help 950 Say Y here to include support watchdog timer embedded 951 into the UniPhier system. 952 953 To compile this driver as a module, choose M here: the 954 module will be called uniphier_wdt. 955 956config RTD119X_WATCHDOG 957 bool "Realtek RTD119x/RTD129x watchdog support" 958 depends on ARCH_REALTEK || COMPILE_TEST 959 depends on OF 960 select WATCHDOG_CORE 961 default ARCH_REALTEK 962 help 963 Say Y here to include support for the watchdog timer in 964 Realtek RTD1295 SoCs. 965 966config SPRD_WATCHDOG 967 tristate "Spreadtrum watchdog support" 968 depends on ARCH_SPRD || COMPILE_TEST 969 select WATCHDOG_CORE 970 help 971 Say Y here to include watchdog timer supported 972 by Spreadtrum system. 973 974config PM8916_WATCHDOG 975 tristate "QCOM PM8916 pmic watchdog" 976 depends on OF && MFD_SPMI_PMIC 977 select WATCHDOG_CORE 978 help 979 Say Y here to include support watchdog timer embedded into the 980 pm8916 module. 981 982# X86 (i386 + ia64 + x86_64) Architecture 983 984config ACQUIRE_WDT 985 tristate "Acquire SBC Watchdog Timer" 986 depends on X86 987 ---help--- 988 This is the driver for the hardware watchdog on Single Board 989 Computers produced by Acquire Inc (and others). This watchdog 990 simply watches your kernel to make sure it doesn't freeze, and if 991 it does, it reboots your computer after a certain amount of time. 992 993 To compile this driver as a module, choose M here: the 994 module will be called acquirewdt. 995 996 Most people will say N. 997 998config ADVANTECH_WDT 999 tristate "Advantech SBC Watchdog Timer" 1000 depends on X86 1001 help 1002 If you are configuring a Linux kernel for the Advantech single-board 1003 computer, say `Y' here to support its built-in watchdog timer 1004 feature. More information can be found at 1005 <http://www.advantech.com.tw/products/> 1006 1007config ALIM1535_WDT 1008 tristate "ALi M1535 PMU Watchdog Timer" 1009 depends on X86 && PCI 1010 ---help--- 1011 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1012 1013 To compile this driver as a module, choose M here: the 1014 module will be called alim1535_wdt. 1015 1016 Most people will say N. 1017 1018config ALIM7101_WDT 1019 tristate "ALi M7101 PMU Computer Watchdog" 1020 depends on PCI 1021 help 1022 This is the driver for the hardware watchdog on the ALi M7101 PMU 1023 as used in the x86 Cobalt servers and also found in some 1024 SPARC Netra servers too. 1025 1026 To compile this driver as a module, choose M here: the 1027 module will be called alim7101_wdt. 1028 1029 Most people will say N. 1030 1031config EBC_C384_WDT 1032 tristate "WinSystems EBC-C384 Watchdog Timer" 1033 depends on X86 1034 select ISA_BUS_API 1035 select WATCHDOG_CORE 1036 help 1037 Enables watchdog timer support for the watchdog timer on the 1038 WinSystems EBC-C384 motherboard. The timeout may be configured via 1039 the timeout module parameter. 1040 1041config F71808E_WDT 1042 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1043 depends on X86 1044 help 1045 This is the driver for the hardware watchdog on the Fintek F71808E, 1046 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1047 F81866 Super I/O controllers. 1048 1049 You can compile this driver directly into the kernel, or use 1050 it as a module. The module will be called f71808e_wdt. 1051 1052config SP5100_TCO 1053 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1054 depends on X86 && PCI 1055 select WATCHDOG_CORE 1056 ---help--- 1057 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1058 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1059 the machine after its expiration. The expiration time can be 1060 configured with the "heartbeat" parameter. 1061 1062 To compile this driver as a module, choose M here: the 1063 module will be called sp5100_tco. 1064 1065config GEODE_WDT 1066 tristate "AMD Geode CS5535/CS5536 Watchdog" 1067 depends on CS5535_MFGPT 1068 help 1069 This driver enables a watchdog capability built into the 1070 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1071 processors. This watchdog watches your kernel to make sure 1072 it doesn't freeze, and if it does, it reboots your computer after 1073 a certain amount of time. 1074 1075 You can compile this driver directly into the kernel, or use 1076 it as a module. The module will be called geodewdt. 1077 1078config SC520_WDT 1079 tristate "AMD Elan SC520 processor Watchdog" 1080 depends on MELAN || COMPILE_TEST 1081 help 1082 This is the driver for the hardware watchdog built in to the 1083 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1084 This watchdog simply watches your kernel to make sure it doesn't 1085 freeze, and if it does, it reboots your computer after a certain 1086 amount of time. 1087 1088 You can compile this driver directly into the kernel, or use 1089 it as a module. The module will be called sc520_wdt. 1090 1091config SBC_FITPC2_WATCHDOG 1092 tristate "Compulab SBC-FITPC2 watchdog" 1093 depends on X86 1094 ---help--- 1095 This is the driver for the built-in watchdog timer on the fit-PC2, 1096 fit-PC2i, CM-iAM single-board computers made by Compulab. 1097 1098 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1099 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1100 1101 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1102 so system will not be restarted while user in BIOS setup. 1103 1104 Once watchdog was enabled the system will be restarted every 1105 "Watchdog Timer Value" period, so to prevent it user can restart or 1106 disable the watchdog. 1107 1108 To compile this driver as a module, choose M here: the 1109 module will be called sbc_fitpc2_wdt. 1110 1111 Most people will say N. 1112 1113config EUROTECH_WDT 1114 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1115 depends on X86 1116 help 1117 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1118 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1119 information are at <http://www.eurotech.it/>. 1120 1121config IB700_WDT 1122 tristate "IB700 SBC Watchdog Timer" 1123 depends on X86 1124 ---help--- 1125 This is the driver for the hardware watchdog on the IB700 Single 1126 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1127 simply watches your kernel to make sure it doesn't freeze, and if 1128 it does, it reboots your computer after a certain amount of time. 1129 1130 This driver is like the WDT501 driver but for slightly different hardware. 1131 1132 To compile this driver as a module, choose M here: the 1133 module will be called ib700wdt. 1134 1135 Most people will say N. 1136 1137config IBMASR 1138 tristate "IBM Automatic Server Restart" 1139 depends on X86 1140 help 1141 This is the driver for the IBM Automatic Server Restart watchdog 1142 timer built-in into some eServer xSeries machines. 1143 1144 To compile this driver as a module, choose M here: the 1145 module will be called ibmasr. 1146 1147config WAFER_WDT 1148 tristate "ICP Single Board Computer Watchdog Timer" 1149 depends on X86 1150 help 1151 This is a driver for the hardware watchdog on the ICP Single 1152 Board Computer. This driver is working on (at least) the following 1153 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1154 1155 To compile this driver as a module, choose M here: the 1156 module will be called wafer5823wdt. 1157 1158config I6300ESB_WDT 1159 tristate "Intel 6300ESB Timer/Watchdog" 1160 depends on PCI 1161 select WATCHDOG_CORE 1162 ---help--- 1163 Hardware driver for the watchdog timer built into the Intel 1164 6300ESB controller hub. 1165 1166 To compile this driver as a module, choose M here: the 1167 module will be called i6300esb. 1168 1169config IE6XX_WDT 1170 tristate "Intel Atom E6xx Watchdog" 1171 depends on X86 && PCI 1172 select WATCHDOG_CORE 1173 select MFD_CORE 1174 select LPC_SCH 1175 ---help--- 1176 Hardware driver for the watchdog timer built into the Intel 1177 Atom E6XX (TunnelCreek) processor. 1178 1179 To compile this driver as a module, choose M here: the 1180 module will be called ie6xx_wdt. 1181 1182config INTEL_SCU_WATCHDOG 1183 bool "Intel SCU Watchdog for Mobile Platforms" 1184 depends on X86_INTEL_MID 1185 ---help--- 1186 Hardware driver for the watchdog time built into the Intel SCU 1187 for Intel Mobile Platforms. 1188 1189 To compile this driver as a module, choose M here. 1190 1191config INTEL_MID_WATCHDOG 1192 tristate "Intel MID Watchdog Timer" 1193 depends on X86_INTEL_MID 1194 select WATCHDOG_CORE 1195 ---help--- 1196 Watchdog timer driver built into the Intel SCU for Intel MID 1197 Platforms. 1198 1199 This driver currently supports only the watchdog evolution 1200 implementation in SCU, available for Merrifield generation. 1201 1202 To compile this driver as a module, choose M here. 1203 1204config ITCO_WDT 1205 tristate "Intel TCO Timer/Watchdog" 1206 depends on (X86 || IA64) && PCI 1207 select WATCHDOG_CORE 1208 depends on I2C || I2C=n 1209 select LPC_ICH if !EXPERT 1210 select I2C_I801 if !EXPERT && I2C 1211 ---help--- 1212 Hardware driver for the intel TCO timer based watchdog devices. 1213 These drivers are included in the Intel 82801 I/O Controller 1214 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1215 controller hub. 1216 1217 The TCO (Total Cost of Ownership) timer is a watchdog timer 1218 that will reboot the machine after its second expiration. The 1219 expiration time can be configured with the "heartbeat" parameter. 1220 1221 On some motherboards the driver may fail to reset the chipset's 1222 NO_REBOOT flag which prevents the watchdog from rebooting the 1223 machine. If this is the case you will get a kernel message like 1224 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1225 1226 To compile this driver as a module, choose M here: the 1227 module will be called iTCO_wdt. 1228 1229config ITCO_VENDOR_SUPPORT 1230 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1231 depends on ITCO_WDT 1232 ---help--- 1233 Add vendor specific support to the intel TCO timer based watchdog 1234 devices. At this moment we only have additional support for some 1235 SuperMicro Inc. motherboards. 1236 1237config IT8712F_WDT 1238 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1239 depends on X86 1240 ---help--- 1241 This is the driver for the built-in watchdog timer on the IT8712F 1242 Super I/0 chipset used on many motherboards. 1243 1244 If the driver does not work, then make sure that the game port in 1245 the BIOS is enabled. 1246 1247 To compile this driver as a module, choose M here: the 1248 module will be called it8712f_wdt. 1249 1250config IT87_WDT 1251 tristate "IT87 Watchdog Timer" 1252 depends on X86 1253 select WATCHDOG_CORE 1254 ---help--- 1255 This is the driver for the hardware watchdog on the ITE IT8607, 1256 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1257 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1258 IT8783 Super I/O chips. 1259 1260 This watchdog simply watches your kernel to make sure it doesn't 1261 freeze, and if it does, it reboots your computer after a certain 1262 amount of time. 1263 1264 To compile this driver as a module, choose M here: the module will 1265 be called it87_wdt. 1266 1267config HP_WATCHDOG 1268 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1269 select WATCHDOG_CORE 1270 depends on X86 && PCI 1271 help 1272 A software monitoring watchdog and NMI handling driver. This driver 1273 will detect lockups and provide a stack trace. This is a driver that 1274 will only load on an HP ProLiant system with a minimum of iLO2 support. 1275 To compile this driver as a module, choose M here: the module will be 1276 called hpwdt. 1277 1278config HPWDT_NMI_DECODING 1279 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1280 depends on HP_WATCHDOG 1281 default y 1282 help 1283 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1284 "Generate NMI to System" virtual button. When an NMI is claimed 1285 by the driver, panic is called. 1286 1287config KEMPLD_WDT 1288 tristate "Kontron COM Watchdog Timer" 1289 depends on MFD_KEMPLD 1290 select WATCHDOG_CORE 1291 help 1292 Support for the PLD watchdog on some Kontron ETX and COMexpress 1293 (ETXexpress) modules 1294 1295 This driver can also be built as a module. If so, the module will be 1296 called kempld_wdt. 1297 1298config SC1200_WDT 1299 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1300 depends on X86 1301 help 1302 This is a driver for National Semiconductor PC87307/PC97307 hardware 1303 watchdog cards as found on the SC1200. This watchdog is mainly used 1304 for power management purposes and can be used to power down the device 1305 during inactivity periods (includes interrupt activity monitoring). 1306 1307 To compile this driver as a module, choose M here: the 1308 module will be called sc1200wdt. 1309 1310 Most people will say N. 1311 1312config SCx200_WDT 1313 tristate "National Semiconductor SCx200 Watchdog" 1314 depends on SCx200 && PCI 1315 help 1316 Enable the built-in watchdog timer support on the National 1317 Semiconductor SCx200 processors. 1318 1319 If compiled as a module, it will be called scx200_wdt. 1320 1321config PC87413_WDT 1322 tristate "NS PC87413 watchdog" 1323 depends on X86 1324 ---help--- 1325 This is the driver for the hardware watchdog on the PC87413 chipset 1326 This watchdog simply watches your kernel to make sure it doesn't 1327 freeze, and if it does, it reboots your computer after a certain 1328 amount of time. 1329 1330 To compile this driver as a module, choose M here: the 1331 module will be called pc87413_wdt. 1332 1333 Most people will say N. 1334 1335config NV_TCO 1336 tristate "nVidia TCO Timer/Watchdog" 1337 depends on X86 && PCI 1338 ---help--- 1339 Hardware driver for the TCO timer built into the nVidia Hub family 1340 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1341 watchdog timer that will reboot the machine after its second 1342 expiration. The expiration time can be configured with the 1343 "heartbeat" parameter. 1344 1345 On some motherboards the driver may fail to reset the chipset's 1346 NO_REBOOT flag which prevents the watchdog from rebooting the 1347 machine. If this is the case you will get a kernel message like 1348 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1349 1350 To compile this driver as a module, choose M here: the 1351 module will be called nv_tco. 1352 1353config RDC321X_WDT 1354 tristate "RDC R-321x SoC watchdog" 1355 depends on X86_RDC321X || COMPILE_TEST 1356 depends on PCI 1357 help 1358 This is the driver for the built in hardware watchdog 1359 in the RDC R-321x SoC. 1360 1361 To compile this driver as a module, choose M here: the 1362 module will be called rdc321x_wdt. 1363 1364config 60XX_WDT 1365 tristate "SBC-60XX Watchdog Timer" 1366 depends on X86 1367 help 1368 This driver can be used with the watchdog timer found on some 1369 single board computers, namely the 6010 PII based computer. 1370 It may well work with other cards. It reads port 0x443 to enable 1371 and re-set the watchdog timer, and reads port 0x45 to disable 1372 the watchdog. If you have a card that behave in similar ways, 1373 you can probably make this driver work with your card as well. 1374 1375 You can compile this driver directly into the kernel, or use 1376 it as a module. The module will be called sbc60xxwdt. 1377 1378config SBC8360_WDT 1379 tristate "SBC8360 Watchdog Timer" 1380 depends on X86_32 1381 ---help--- 1382 1383 This is the driver for the hardware watchdog on the SBC8360 Single 1384 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1385 1386 To compile this driver as a module, choose M here: the 1387 module will be called sbc8360. 1388 1389 Most people will say N. 1390 1391config SBC7240_WDT 1392 tristate "SBC Nano 7240 Watchdog Timer" 1393 depends on X86_32 && !UML 1394 ---help--- 1395 This is the driver for the hardware watchdog found on the IEI 1396 single board computers EPIC Nano 7240 (and likely others). This 1397 watchdog simply watches your kernel to make sure it doesn't freeze, 1398 and if it does, it reboots your computer after a certain amount of 1399 time. 1400 1401 To compile this driver as a module, choose M here: the 1402 module will be called sbc7240_wdt. 1403 1404config CPU5_WDT 1405 tristate "SMA CPU5 Watchdog" 1406 depends on X86 1407 ---help--- 1408 TBD. 1409 To compile this driver as a module, choose M here: the 1410 module will be called cpu5wdt. 1411 1412config SMSC_SCH311X_WDT 1413 tristate "SMSC SCH311X Watchdog Timer" 1414 depends on X86 1415 ---help--- 1416 This is the driver for the hardware watchdog timer on the 1417 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1418 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1419 serial ports). 1420 1421 To compile this driver as a module, choose M here: the 1422 module will be called sch311x_wdt. 1423 1424config SMSC37B787_WDT 1425 tristate "Winbond SMsC37B787 Watchdog Timer" 1426 depends on X86 1427 ---help--- 1428 This is the driver for the hardware watchdog component on the 1429 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1430 from Vision Systems and maybe others. 1431 1432 This watchdog simply watches your kernel to make sure it doesn't 1433 freeze, and if it does, it reboots your computer after a certain 1434 amount of time. 1435 1436 Usually a userspace daemon will notify the kernel WDT driver that 1437 userspace is still alive, at regular intervals. 1438 1439 To compile this driver as a module, choose M here: the 1440 module will be called smsc37b787_wdt. 1441 1442 Most people will say N. 1443 1444config TQMX86_WDT 1445 tristate "TQ-Systems TQMX86 Watchdog Timer" 1446 depends on X86 1447 help 1448 This is the driver for the hardware watchdog timer in the TQMX86 IO 1449 controller found on some of their ComExpress Modules. 1450 1451 To compile this driver as a module, choose M here; the module 1452 will be called tqmx86_wdt. 1453 1454 Most people will say N. 1455 1456config VIA_WDT 1457 tristate "VIA Watchdog Timer" 1458 depends on X86 && PCI 1459 select WATCHDOG_CORE 1460 ---help--- 1461 This is the driver for the hardware watchdog timer on VIA 1462 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1463 1464 To compile this driver as a module, choose M here; the module 1465 will be called via_wdt. 1466 1467 Most people will say N. 1468 1469config W83627HF_WDT 1470 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1471 depends on X86 1472 select WATCHDOG_CORE 1473 ---help--- 1474 This is the driver for the hardware watchdog on the following 1475 Super I/O chips. 1476 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1477 W83637HF 1478 W83667HG/HG-B 1479 W83687THF 1480 W83697HF 1481 W83697UG 1482 NCT6775 1483 NCT6776 1484 NCT6779 1485 NCT6791 1486 NCT6792 1487 NCT6102D/04D/06D 1488 1489 This watchdog simply watches your kernel to make sure it doesn't 1490 freeze, and if it does, it reboots your computer after a certain 1491 amount of time. 1492 1493 To compile this driver as a module, choose M here: the 1494 module will be called w83627hf_wdt. 1495 1496 Most people will say N. 1497 1498config W83877F_WDT 1499 tristate "W83877F (EMACS) Watchdog Timer" 1500 depends on X86 1501 ---help--- 1502 This is the driver for the hardware watchdog on the W83877F chipset 1503 as used in EMACS PC-104 motherboards (and likely others). This 1504 watchdog simply watches your kernel to make sure it doesn't freeze, 1505 and if it does, it reboots your computer after a certain amount of 1506 time. 1507 1508 To compile this driver as a module, choose M here: the 1509 module will be called w83877f_wdt. 1510 1511 Most people will say N. 1512 1513config W83977F_WDT 1514 tristate "W83977F (PCM-5335) Watchdog Timer" 1515 depends on X86 1516 ---help--- 1517 This is the driver for the hardware watchdog on the W83977F I/O chip 1518 as used in AAEON's PCM-5335 SBC (and likely others). This 1519 watchdog simply watches your kernel to make sure it doesn't freeze, 1520 and if it does, it reboots your computer after a certain amount of 1521 time. 1522 1523 To compile this driver as a module, choose M here: the 1524 module will be called w83977f_wdt. 1525 1526config MACHZ_WDT 1527 tristate "ZF MachZ Watchdog" 1528 depends on X86 1529 ---help--- 1530 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1531 N. This is the driver for the watchdog timer built-in on that 1532 processor using ZF-Logic interface. This watchdog simply watches 1533 your kernel to make sure it doesn't freeze, and if it does, it 1534 reboots your computer after a certain amount of time. 1535 1536 To compile this driver as a module, choose M here: the 1537 module will be called machzwd. 1538 1539config SBC_EPX_C3_WATCHDOG 1540 tristate "Winsystems SBC EPX-C3 watchdog" 1541 depends on X86 1542 ---help--- 1543 This is the driver for the built-in watchdog timer on the EPX-C3 1544 Single-board computer made by Winsystems, Inc. 1545 1546 *Note*: This hardware watchdog is not probeable and thus there 1547 is no way to know if writing to its IO address will corrupt 1548 your system or have any real effect. The only way to be sure 1549 that this driver does what you want is to make sure you 1550 are running it on an EPX-C3 from Winsystems with the watchdog 1551 timer at IO address 0x1ee and 0x1ef. It will write to both those 1552 IO ports. Basically, the assumption is made that if you compile 1553 this driver into your kernel and/or load it as a module, that you 1554 know what you are doing and that you are in fact running on an 1555 EPX-C3 board! 1556 1557 To compile this driver as a module, choose M here: the 1558 module will be called sbc_epx_c3. 1559 1560config INTEL_MEI_WDT 1561 tristate "Intel MEI iAMT Watchdog" 1562 depends on INTEL_MEI && X86 1563 select WATCHDOG_CORE 1564 ---help--- 1565 A device driver for the Intel MEI iAMT watchdog. 1566 1567 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1568 Whenever the OS hangs or crashes, iAMT will send an event 1569 to any subscriber to this event. The watchdog doesn't reset the 1570 the platform. 1571 1572 To compile this driver as a module, choose M here: 1573 the module will be called mei_wdt. 1574 1575config NI903X_WDT 1576 tristate "NI 903x/913x Watchdog" 1577 depends on X86 && ACPI 1578 select WATCHDOG_CORE 1579 ---help--- 1580 This is the driver for the watchdog timer on the National Instruments 1581 903x/913x real-time controllers. 1582 1583 To compile this driver as a module, choose M here: the module will be 1584 called ni903x_wdt. 1585 1586config NIC7018_WDT 1587 tristate "NIC7018 Watchdog" 1588 depends on X86 && ACPI 1589 select WATCHDOG_CORE 1590 ---help--- 1591 Support for National Instruments NIC7018 Watchdog. 1592 1593 To compile this driver as a module, choose M here: the module will be 1594 called nic7018_wdt. 1595 1596# M68K Architecture 1597 1598config M54xx_WATCHDOG 1599 tristate "MCF54xx watchdog support" 1600 depends on M548x 1601 help 1602 To compile this driver as a module, choose M here: the 1603 module will be called m54xx_wdt. 1604 1605# MicroBlaze Architecture 1606 1607# MIPS Architecture 1608 1609config ATH79_WDT 1610 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1611 depends on ATH79 || (ARM && COMPILE_TEST) 1612 help 1613 Hardware driver for the built-in watchdog timer on the Atheros 1614 AR71XX/AR724X/AR913X SoCs. 1615 1616config BCM47XX_WDT 1617 tristate "Broadcom BCM47xx Watchdog Timer" 1618 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1619 select WATCHDOG_CORE 1620 help 1621 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1622 1623config RC32434_WDT 1624 tristate "IDT RC32434 SoC Watchdog Timer" 1625 depends on MIKROTIK_RB532 1626 help 1627 Hardware driver for the IDT RC32434 SoC built-in 1628 watchdog timer. 1629 1630 To compile this driver as a module, choose M here: the 1631 module will be called rc32434_wdt. 1632 1633config INDYDOG 1634 tristate "Indy/I2 Hardware Watchdog" 1635 depends on SGI_HAS_INDYDOG 1636 help 1637 Hardware driver for the Indy's/I2's watchdog. This is a 1638 watchdog timer that will reboot the machine after a 60 second 1639 timer expired and no process has written to /dev/watchdog during 1640 that time. 1641 1642config JZ4740_WDT 1643 tristate "Ingenic jz4740 SoC hardware watchdog" 1644 depends on MACH_JZ4740 || MACH_JZ4780 1645 select WATCHDOG_CORE 1646 help 1647 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1648 1649config WDT_MTX1 1650 tristate "MTX-1 Hardware Watchdog" 1651 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1652 help 1653 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1654 will reboot the machine after a 100 seconds timer expired. 1655 1656config PNX833X_WDT 1657 tristate "PNX833x Hardware Watchdog" 1658 depends on SOC_PNX8335 1659 depends on BROKEN 1660 help 1661 Hardware driver for the PNX833x's watchdog. This is a 1662 watchdog timer that will reboot the machine after a programmable 1663 timer has expired and no process has written to /dev/watchdog during 1664 that time. 1665 1666config SIBYTE_WDOG 1667 tristate "Sibyte SoC hardware watchdog" 1668 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1669 help 1670 Watchdog driver for the built in watchdog hardware in Sibyte 1671 SoC processors. There are apparently two watchdog timers 1672 on such processors; this driver supports only the first one, 1673 because currently Linux only supports exporting one watchdog 1674 to userspace. 1675 1676 To compile this driver as a loadable module, choose M here. 1677 The module will be called sb_wdog. 1678 1679config AR7_WDT 1680 tristate "TI AR7 Watchdog Timer" 1681 depends on AR7 || (MIPS && COMPILE_TEST) 1682 help 1683 Hardware driver for the TI AR7 Watchdog Timer. 1684 1685config TXX9_WDT 1686 tristate "Toshiba TXx9 Watchdog Timer" 1687 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1688 select WATCHDOG_CORE 1689 help 1690 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1691 1692config OCTEON_WDT 1693 tristate "Cavium OCTEON SOC family Watchdog Timer" 1694 depends on CAVIUM_OCTEON_SOC 1695 default y 1696 select WATCHDOG_CORE 1697 select EXPORT_UASM if OCTEON_WDT = m 1698 help 1699 Hardware driver for OCTEON's on chip watchdog timer. 1700 Enables the watchdog for all cores running Linux. It 1701 installs a NMI handler and pokes the watchdog based on an 1702 interrupt. On first expiration of the watchdog, the 1703 interrupt handler pokes it. The second expiration causes an 1704 NMI that prints a message. The third expiration causes a 1705 global soft reset. 1706 1707 When userspace has /dev/watchdog open, no poking is done 1708 from the first interrupt, it is then only poked when the 1709 device is written. 1710 1711config BCM63XX_WDT 1712 tristate "Broadcom BCM63xx hardware watchdog" 1713 depends on BCM63XX 1714 help 1715 Watchdog driver for the built in watchdog hardware in Broadcom 1716 BCM63xx SoC. 1717 1718 To compile this driver as a loadable module, choose M here. 1719 The module will be called bcm63xx_wdt. 1720 1721config BCM2835_WDT 1722 tristate "Broadcom BCM2835 hardware watchdog" 1723 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1724 select WATCHDOG_CORE 1725 help 1726 Watchdog driver for the built in watchdog hardware in Broadcom 1727 BCM2835 SoC. 1728 1729 To compile this driver as a loadable module, choose M here. 1730 The module will be called bcm2835_wdt. 1731 1732config BCM_KONA_WDT 1733 tristate "BCM Kona Watchdog" 1734 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1735 select WATCHDOG_CORE 1736 help 1737 Support for the watchdog timer on the following Broadcom BCM281xx 1738 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1739 BCM28155 variants. 1740 1741 Say 'Y' or 'M' here to enable the driver. The module will be called 1742 bcm_kona_wdt. 1743 1744config BCM_KONA_WDT_DEBUG 1745 bool "DEBUGFS support for BCM Kona Watchdog" 1746 depends on BCM_KONA_WDT 1747 help 1748 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1749 access to the driver's internal data structures as well as watchdog 1750 timer hardware registres. 1751 1752 If in doubt, say 'N'. 1753 1754config BCM7038_WDT 1755 tristate "BCM7038 Watchdog" 1756 select WATCHDOG_CORE 1757 depends on HAS_IOMEM 1758 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1759 help 1760 Watchdog driver for the built-in hardware in Broadcom 7038 and 1761 later SoCs used in set-top boxes. BCM7038 was made public 1762 during the 2004 CES, and since then, many Broadcom chips use this 1763 watchdog block, including some cable modem chips. 1764 1765config IMGPDC_WDT 1766 tristate "Imagination Technologies PDC Watchdog Timer" 1767 depends on HAS_IOMEM 1768 depends on MIPS || COMPILE_TEST 1769 select WATCHDOG_CORE 1770 help 1771 Driver for Imagination Technologies PowerDown Controller 1772 Watchdog Timer. 1773 1774 To compile this driver as a loadable module, choose M here. 1775 The module will be called imgpdc_wdt. 1776 1777config LANTIQ_WDT 1778 tristate "Lantiq SoC watchdog" 1779 depends on LANTIQ 1780 select WATCHDOG_CORE 1781 help 1782 Hardware driver for the Lantiq SoC Watchdog Timer. 1783 1784config LOONGSON1_WDT 1785 tristate "Loongson1 SoC hardware watchdog" 1786 depends on MACH_LOONGSON32 1787 select WATCHDOG_CORE 1788 help 1789 Hardware driver for the Loongson1 SoC Watchdog Timer. 1790 1791config RALINK_WDT 1792 tristate "Ralink SoC watchdog" 1793 select WATCHDOG_CORE 1794 depends on RALINK 1795 help 1796 Hardware driver for the Ralink SoC Watchdog Timer. 1797 1798config MT7621_WDT 1799 tristate "Mediatek SoC watchdog" 1800 select WATCHDOG_CORE 1801 depends on SOC_MT7620 || SOC_MT7621 1802 help 1803 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1804 1805config PIC32_WDT 1806 tristate "Microchip PIC32 hardware watchdog" 1807 select WATCHDOG_CORE 1808 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1809 help 1810 Watchdog driver for the built in watchdog hardware in a PIC32. 1811 1812 Configuration bits must be set appropriately for the watchdog to be 1813 controlled by this driver. 1814 1815 To compile this driver as a loadable module, choose M here. 1816 The module will be called pic32-wdt. 1817 1818config PIC32_DMT 1819 tristate "Microchip PIC32 Deadman Timer" 1820 select WATCHDOG_CORE 1821 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1822 help 1823 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1824 timer is typically be used in misson critical and safety critical 1825 applications, where any single failure of the software functionality 1826 and sequencing must be detected. 1827 1828 To compile this driver as a loadable module, choose M here. 1829 The module will be called pic32-dmt. 1830 1831# PARISC Architecture 1832 1833# POWERPC Architecture 1834 1835config GEF_WDT 1836 tristate "GE Watchdog Timer" 1837 depends on GE_FPGA 1838 ---help--- 1839 Watchdog timer found in a number of GE single board computers. 1840 1841config MPC5200_WDT 1842 bool "MPC52xx Watchdog Timer" 1843 depends on PPC_MPC52xx || COMPILE_TEST 1844 help 1845 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1846 1847config 8xxx_WDT 1848 tristate "MPC8xxx Platform Watchdog Timer" 1849 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1850 select WATCHDOG_CORE 1851 help 1852 This driver is for a SoC level watchdog that exists on some 1853 Freescale PowerPC processors. So far this driver supports: 1854 - MPC8xx watchdogs 1855 - MPC83xx watchdogs 1856 - MPC86xx watchdogs 1857 1858 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1859 1860config MV64X60_WDT 1861 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1862 depends on MV64X60 || COMPILE_TEST 1863 1864config PIKA_WDT 1865 tristate "PIKA FPGA Watchdog" 1866 depends on WARP || (PPC64 && COMPILE_TEST) 1867 default y 1868 help 1869 This enables the watchdog in the PIKA FPGA. Currently used on 1870 the Warp platform. 1871 1872config BOOKE_WDT 1873 tristate "PowerPC Book-E Watchdog Timer" 1874 depends on BOOKE || 4xx 1875 select WATCHDOG_CORE 1876 ---help--- 1877 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1878 MPC85xx SOCs and the IBM PowerPC 440. 1879 1880 Please see Documentation/watchdog/watchdog-api.rst for 1881 more information. 1882 1883config BOOKE_WDT_DEFAULT_TIMEOUT 1884 int "PowerPC Book-E Watchdog Timer Default Timeout" 1885 depends on BOOKE_WDT 1886 default 38 if PPC_FSL_BOOK3E 1887 range 0 63 if PPC_FSL_BOOK3E 1888 default 3 if !PPC_FSL_BOOK3E 1889 range 0 3 if !PPC_FSL_BOOK3E 1890 help 1891 Select the default watchdog timer period to be used by the PowerPC 1892 Book-E watchdog driver. A watchdog "event" occurs when the bit 1893 position represented by this number transitions from zero to one. 1894 1895 For Freescale Book-E processors, this is a number between 0 and 63. 1896 For other Book-E processors, this is a number between 0 and 3. 1897 1898 The value can be overridden by the wdt_period command-line parameter. 1899 1900config MEN_A21_WDT 1901 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1902 select WATCHDOG_CORE 1903 depends on GPIOLIB || COMPILE_TEST 1904 help 1905 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1906 1907 The driver can also be built as a module. If so, the module will be 1908 called mena21_wdt. 1909 1910 If unsure select N here. 1911 1912# PPC64 Architecture 1913 1914config WATCHDOG_RTAS 1915 tristate "RTAS watchdog" 1916 depends on PPC_RTAS 1917 help 1918 This driver adds watchdog support for the RTAS watchdog. 1919 1920 To compile this driver as a module, choose M here. The module 1921 will be called wdrtas. 1922 1923# S390 Architecture 1924 1925config DIAG288_WATCHDOG 1926 tristate "System z diag288 Watchdog" 1927 depends on S390 1928 select WATCHDOG_CORE 1929 help 1930 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1931 provide a virtual watchdog timer to their guest that cause a 1932 user define Control Program command to be executed after a 1933 timeout. 1934 LPAR provides a very similar interface. This driver handles 1935 both. 1936 1937 To compile this driver as a module, choose M here. The module 1938 will be called diag288_wdt. 1939 1940# SUPERH (sh + sh64) Architecture 1941 1942config SH_WDT 1943 tristate "SuperH Watchdog" 1944 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1945 select WATCHDOG_CORE 1946 help 1947 This driver adds watchdog support for the integrated watchdog in the 1948 SuperH processors. If you have one of these processors and wish 1949 to have watchdog support enabled, say Y, otherwise say N. 1950 1951 As a side note, saying Y here will automatically boost HZ to 1000 1952 so that the timer has a chance to clear the overflow counter. On 1953 slower systems (such as the SH-2 and SH-3) this will likely yield 1954 some performance issues. As such, the WDT should be avoided here 1955 unless it is absolutely necessary. 1956 1957 To compile this driver as a module, choose M here: the 1958 module will be called shwdt. 1959 1960# SPARC Architecture 1961 1962# SPARC64 Architecture 1963 1964config WATCHDOG_CP1XXX 1965 tristate "CP1XXX Hardware Watchdog support" 1966 depends on SPARC64 && PCI 1967 ---help--- 1968 This is the driver for the hardware watchdog timers present on 1969 Sun Microsystems CompactPCI models CP1400 and CP1500. 1970 1971 To compile this driver as a module, choose M here: the 1972 module will be called cpwatchdog. 1973 1974 If you do not have a CompactPCI model CP1400 or CP1500, or 1975 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1976 you should say N to this option. 1977 1978config WATCHDOG_RIO 1979 tristate "RIO Hardware Watchdog support" 1980 depends on SPARC64 && PCI 1981 help 1982 Say Y here to support the hardware watchdog capability on Sun RIO 1983 machines. The watchdog timeout period is normally one minute but 1984 can be changed with a boot-time parameter. 1985 1986config WATCHDOG_SUN4V 1987 tristate "Sun4v Watchdog support" 1988 select WATCHDOG_CORE 1989 depends on SPARC64 1990 help 1991 Say Y here to support the hypervisor watchdog capability embedded 1992 in the SPARC sun4v architecture. 1993 1994 To compile this driver as a module, choose M here. The module will 1995 be called sun4v_wdt. 1996 1997# XTENSA Architecture 1998 1999# Xen Architecture 2000 2001config XEN_WDT 2002 tristate "Xen Watchdog support" 2003 depends on XEN 2004 select WATCHDOG_CORE 2005 help 2006 Say Y here to support the hypervisor watchdog capability provided 2007 by Xen 4.0 and newer. The watchdog timeout period is normally one 2008 minute but can be changed with a boot-time parameter. 2009 2010config UML_WATCHDOG 2011 tristate "UML watchdog" 2012 depends on UML || COMPILE_TEST 2013 2014# 2015# ISA-based Watchdog Cards 2016# 2017 2018comment "ISA-based Watchdog Cards" 2019 depends on ISA 2020 2021config PCWATCHDOG 2022 tristate "Berkshire Products ISA-PC Watchdog" 2023 depends on ISA 2024 ---help--- 2025 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2026 This card simply watches your kernel to make sure it doesn't freeze, 2027 and if it does, it reboots your computer after a certain amount of 2028 time. This driver is like the WDT501 driver but for different 2029 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2030 watchdog cards can be ordered from <http://www.berkprod.com/>. 2031 2032 To compile this driver as a module, choose M here: the 2033 module will be called pcwd. 2034 2035 Most people will say N. 2036 2037config MIXCOMWD 2038 tristate "Mixcom Watchdog" 2039 depends on ISA 2040 ---help--- 2041 This is a driver for the Mixcom hardware watchdog cards. This 2042 watchdog simply watches your kernel to make sure it doesn't freeze, 2043 and if it does, it reboots your computer after a certain amount of 2044 time. 2045 2046 To compile this driver as a module, choose M here: the 2047 module will be called mixcomwd. 2048 2049 Most people will say N. 2050 2051config WDT 2052 tristate "WDT Watchdog timer" 2053 depends on ISA 2054 ---help--- 2055 If you have a WDT500P or WDT501P watchdog board, say Y here, 2056 otherwise N. It is not possible to probe for this board, which means 2057 that you have to inform the kernel about the IO port and IRQ that 2058 is needed (you can do this via the io and irq parameters) 2059 2060 To compile this driver as a module, choose M here: the 2061 module will be called wdt. 2062 2063# 2064# PCI-based Watchdog Cards 2065# 2066 2067comment "PCI-based Watchdog Cards" 2068 depends on PCI 2069 2070config PCIPCWATCHDOG 2071 tristate "Berkshire Products PCI-PC Watchdog" 2072 depends on PCI 2073 ---help--- 2074 This is the driver for the Berkshire Products PCI-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. The card can also monitor the internal temperature of the PC. 2078 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2079 2080 To compile this driver as a module, choose M here: the 2081 module will be called pcwd_pci. 2082 2083 Most people will say N. 2084 2085config WDTPCI 2086 tristate "PCI-WDT500/501 Watchdog timer" 2087 depends on PCI 2088 ---help--- 2089 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2090 2091 If you have a PCI-WDT501 watchdog board then you can enable the 2092 temperature sensor by setting the type parameter to 501. 2093 2094 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2095 can do this via the tachometer parameter. Only do this if you have a 2096 fan tachometer actually set up. 2097 2098 To compile this driver as a module, choose M here: the 2099 module will be called wdt_pci. 2100 2101# 2102# USB-based Watchdog Cards 2103# 2104 2105comment "USB-based Watchdog Cards" 2106 depends on USB 2107 2108config USBPCWATCHDOG 2109 tristate "Berkshire Products USB-PC Watchdog" 2110 depends on USB 2111 ---help--- 2112 This is the driver for the Berkshire Products USB-PC Watchdog card. 2113 This card simply watches your kernel to make sure it doesn't freeze, 2114 and if it does, it reboots your computer after a certain amount of 2115 time. The card can also monitor the internal temperature of the PC. 2116 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2117 2118 To compile this driver as a module, choose M here: the 2119 module will be called pcwd_usb. 2120 2121 Most people will say N. 2122 2123endif # WATCHDOG 2124