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 KS8695_WATCHDOG 481 tristate "KS8695 watchdog" 482 depends on ARCH_KS8695 483 help 484 Watchdog timer embedded into KS8695 processor. This will reboot your 485 system when the timeout is reached. 486 487config HAVE_S3C2410_WATCHDOG 488 bool 489 help 490 This will include watchdog timer support for Samsung SoCs. If 491 you want to include watchdog support for any machine, kindly 492 select this in the respective mach-XXXX/Kconfig file. 493 494config S3C2410_WATCHDOG 495 tristate "S3C2410 Watchdog" 496 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 497 select WATCHDOG_CORE 498 select MFD_SYSCON if ARCH_EXYNOS 499 help 500 Watchdog timer block in the Samsung SoCs. This will reboot 501 the system when the timer expires with the watchdog enabled. 502 503 The driver is limited by the speed of the system's PCLK 504 signal, so with reasonably fast systems (PCLK around 50-66MHz) 505 then watchdog intervals of over approximately 20seconds are 506 unavailable. 507 508 The driver can be built as a module by choosing M, and will 509 be called s3c2410_wdt 510 511config SA1100_WATCHDOG 512 tristate "SA1100/PXA2xx watchdog" 513 depends on ARCH_SA1100 || ARCH_PXA 514 help 515 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 516 reboot your system when timeout is reached. 517 518 NOTE: once enabled, this timer cannot be disabled. 519 520 To compile this driver as a module, choose M here: the 521 module will be called sa1100_wdt. 522 523config DW_WATCHDOG 524 tristate "Synopsys DesignWare watchdog" 525 depends on HAS_IOMEM 526 select WATCHDOG_CORE 527 help 528 Say Y here if to include support for the Synopsys DesignWare 529 watchdog timer found in many chips. 530 To compile this driver as a module, choose M here: the 531 module will be called dw_wdt. 532 533config EP93XX_WATCHDOG 534 tristate "EP93xx Watchdog" 535 depends on ARCH_EP93XX || COMPILE_TEST 536 select WATCHDOG_CORE 537 help 538 Say Y here if to include support for the watchdog timer 539 embedded in the Cirrus Logic EP93xx family of devices. 540 541 To compile this driver as a module, choose M here: the 542 module will be called ep93xx_wdt. 543 544config OMAP_WATCHDOG 545 tristate "OMAP Watchdog" 546 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 547 select WATCHDOG_CORE 548 help 549 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 550 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 551 552config PNX4008_WATCHDOG 553 tristate "LPC32XX Watchdog" 554 depends on ARCH_LPC32XX 555 select WATCHDOG_CORE 556 help 557 Say Y here if to include support for the watchdog timer 558 in the LPC32XX processor. 559 This driver can be built as a module by choosing M. The module 560 will be called pnx4008_wdt. 561 562 Say N if you are unsure. 563 564config IOP_WATCHDOG 565 tristate "IOP Watchdog" 566 depends on ARCH_IOP13XX 567 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 568 help 569 Say Y here if to include support for the watchdog timer 570 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 571 be built as a module by choosing M. The module will 572 be called iop_wdt. 573 574 Note: The IOP13XX watchdog does an Internal Bus Reset which will 575 affect both cores and the peripherals of the IOP. The ATU-X 576 and/or ATUe configuration registers will remain intact, but if 577 operating as an Root Complex and/or Central Resource, the PCI-X 578 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 579 580config DAVINCI_WATCHDOG 581 tristate "DaVinci watchdog" 582 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 583 select WATCHDOG_CORE 584 help 585 Say Y here if to include support for the watchdog timer 586 in the DaVinci DM644x/DM646x or Keystone processors. 587 To compile this driver as a module, choose M here: the 588 module will be called davinci_wdt. 589 590 NOTE: once enabled, this timer cannot be disabled. 591 Say N if you are unsure. 592 593config ORION_WATCHDOG 594 tristate "Orion watchdog" 595 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 596 depends on ARM 597 select WATCHDOG_CORE 598 help 599 Say Y here if to include support for the watchdog timer 600 in the Marvell Orion5x and Kirkwood ARM SoCs. 601 To compile this driver as a module, choose M here: the 602 module will be called orion_wdt. 603 604config RN5T618_WATCHDOG 605 tristate "Ricoh RN5T618 watchdog" 606 depends on MFD_RN5T618 || COMPILE_TEST 607 select WATCHDOG_CORE 608 help 609 If you say yes here you get support for watchdog on the Ricoh 610 RN5T618 PMIC. 611 612 This driver can also be built as a module. If so, the module 613 will be called rn5t618_wdt. 614 615config SUNXI_WATCHDOG 616 tristate "Allwinner SoCs watchdog support" 617 depends on ARCH_SUNXI || COMPILE_TEST 618 select WATCHDOG_CORE 619 help 620 Say Y here to include support for the watchdog timer 621 in Allwinner SoCs. 622 To compile this driver as a module, choose M here: the 623 module will be called sunxi_wdt. 624 625config COH901327_WATCHDOG 626 bool "ST-Ericsson COH 901 327 watchdog" 627 depends on ARCH_U300 || (ARM && COMPILE_TEST) 628 default y if MACH_U300 629 select WATCHDOG_CORE 630 help 631 Say Y here to include Watchdog timer support for the 632 watchdog embedded into the ST-Ericsson U300 series platforms. 633 This watchdog is used to reset the system and thus cannot be 634 compiled as a module. 635 636config NPCM7XX_WATCHDOG 637 tristate "Nuvoton NPCM750 watchdog" 638 depends on ARCH_NPCM || COMPILE_TEST 639 default y if ARCH_NPCM7XX 640 select WATCHDOG_CORE 641 help 642 Say Y here to include Watchdog timer support for the 643 watchdog embedded into the NPCM7xx. 644 This watchdog is used to reset the system and thus cannot be 645 compiled as a module. 646 647config TWL4030_WATCHDOG 648 tristate "TWL4030 Watchdog" 649 depends on TWL4030_CORE 650 select WATCHDOG_CORE 651 help 652 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 653 watchdog timer support for TWL4030 chips. 654 655config STMP3XXX_RTC_WATCHDOG 656 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 657 depends on RTC_DRV_STMP || COMPILE_TEST 658 select WATCHDOG_CORE 659 help 660 Say Y here to include support for the watchdog timer inside 661 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 662 To compile this driver as a module, choose M here: the 663 module will be called stmp3xxx_rtc_wdt. 664 665config NUC900_WATCHDOG 666 tristate "Nuvoton NUC900 watchdog" 667 depends on ARCH_W90X900 || COMPILE_TEST 668 help 669 Say Y here if to include support for the watchdog timer 670 for the Nuvoton NUC900 series SoCs. 671 To compile this driver as a module, choose M here: the 672 module will be called nuc900_wdt. 673 674config TS4800_WATCHDOG 675 tristate "TS-4800 Watchdog" 676 depends on HAS_IOMEM && OF 677 depends on SOC_IMX51 || COMPILE_TEST 678 select WATCHDOG_CORE 679 select MFD_SYSCON 680 help 681 Technologic Systems TS-4800 has watchdog timer implemented in 682 an external FPGA. Say Y here if you want to support for the 683 watchdog timer on TS-4800 board. 684 685config TS72XX_WATCHDOG 686 tristate "TS-72XX SBC Watchdog" 687 depends on MACH_TS72XX || COMPILE_TEST 688 help 689 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 690 watchdog timer implemented in a external CPLD chip. Say Y here 691 if you want to support for the watchdog timer on TS-72XX boards. 692 693 To compile this driver as a module, choose M here: the 694 module will be called ts72xx_wdt. 695 696config MAX63XX_WATCHDOG 697 tristate "Max63xx watchdog" 698 depends on HAS_IOMEM 699 select WATCHDOG_CORE 700 help 701 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 702 703config MAX77620_WATCHDOG 704 tristate "Maxim Max77620 Watchdog Timer" 705 depends on MFD_MAX77620 || COMPILE_TEST 706 help 707 This is the driver for the Max77620 watchdog timer. 708 Say 'Y' here to enable the watchdog timer support for 709 MAX77620 chips. To compile this driver as a module, 710 choose M here: the module will be called max77620_wdt. 711 712config IMX2_WDT 713 tristate "IMX2+ Watchdog" 714 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 715 select REGMAP_MMIO 716 select WATCHDOG_CORE 717 help 718 This is the driver for the hardware watchdog 719 on the Freescale IMX2 and later processors. 720 If you have one of these processors and wish to have 721 watchdog support enabled, say Y, otherwise say N. 722 723 To compile this driver as a module, choose M here: the 724 module will be called imx2_wdt. 725 726config IMX_SC_WDT 727 tristate "IMX SC Watchdog" 728 depends on HAVE_ARM_SMCCC 729 depends on IMX_SCU 730 select WATCHDOG_CORE 731 help 732 This is the driver for the system controller watchdog 733 on the NXP i.MX SoCs with system controller inside, the 734 watchdog driver will call ARM SMC API and trap into 735 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 736 will request system controller to execute the operations. 737 If you have one of these processors and wish to have 738 watchdog support enabled, say Y, otherwise say N. 739 740 To compile this driver as a module, choose M here: the 741 module will be called imx_sc_wdt. 742 743config UX500_WATCHDOG 744 tristate "ST-Ericsson Ux500 watchdog" 745 depends on MFD_DB8500_PRCMU 746 select WATCHDOG_CORE 747 default y 748 help 749 Say Y here to include Watchdog timer support for the watchdog 750 existing in the prcmu of ST-Ericsson Ux500 series platforms. 751 752 To compile this driver as a module, choose M here: the 753 module will be called ux500_wdt. 754 755config RETU_WATCHDOG 756 tristate "Retu watchdog" 757 depends on MFD_RETU 758 select WATCHDOG_CORE 759 help 760 Retu watchdog driver for Nokia Internet Tablets (770, N800, 761 N810). At least on N800 the watchdog cannot be disabled, so 762 this driver is essential and you should enable it. 763 764 To compile this driver as a module, choose M here: the 765 module will be called retu_wdt. 766 767config MOXART_WDT 768 tristate "MOXART watchdog" 769 depends on ARCH_MOXART || COMPILE_TEST 770 help 771 Say Y here to include Watchdog timer support for the watchdog 772 existing on the MOXA ART SoC series platforms. 773 774 To compile this driver as a module, choose M here: the 775 module will be called moxart_wdt. 776 777config SIRFSOC_WATCHDOG 778 tristate "SiRFSOC watchdog" 779 depends on ARCH_SIRF || COMPILE_TEST 780 select WATCHDOG_CORE 781 default y 782 help 783 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 784 the watchdog triggers the system will be reset. 785 786config ST_LPC_WATCHDOG 787 tristate "STMicroelectronics LPC Watchdog" 788 depends on ARCH_STI || COMPILE_TEST 789 depends on OF 790 select WATCHDOG_CORE 791 help 792 Say Y here to include STMicroelectronics Low Power Controller 793 (LPC) based Watchdog timer support. 794 795 To compile this driver as a module, choose M here: the 796 module will be called st_lpc_wdt. 797 798config TEGRA_WATCHDOG 799 tristate "Tegra watchdog" 800 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 801 select WATCHDOG_CORE 802 help 803 Say Y here to include support for the watchdog timer 804 embedded in NVIDIA Tegra SoCs. 805 806 To compile this driver as a module, choose M here: the 807 module will be called tegra_wdt. 808 809config QCOM_WDT 810 tristate "QCOM watchdog" 811 depends on HAS_IOMEM 812 depends on ARCH_QCOM || COMPILE_TEST 813 select WATCHDOG_CORE 814 help 815 Say Y here to include Watchdog timer support for the watchdog found 816 on QCOM chipsets. Currently supported targets are the MSM8960, 817 APQ8064, and IPQ8064. 818 819 To compile this driver as a module, choose M here: the 820 module will be called qcom_wdt. 821 822config MESON_GXBB_WATCHDOG 823 tristate "Amlogic Meson GXBB SoCs watchdog support" 824 depends on ARCH_MESON || COMPILE_TEST 825 select WATCHDOG_CORE 826 help 827 Say Y here to include support for the watchdog timer 828 in Amlogic Meson GXBB SoCs. 829 To compile this driver as a module, choose M here: the 830 module will be called meson_gxbb_wdt. 831 832config MESON_WATCHDOG 833 tristate "Amlogic Meson SoCs watchdog support" 834 depends on ARCH_MESON || COMPILE_TEST 835 select WATCHDOG_CORE 836 help 837 Say Y here to include support for the watchdog timer 838 in Amlogic Meson SoCs. 839 To compile this driver as a module, choose M here: the 840 module will be called meson_wdt. 841 842config MEDIATEK_WATCHDOG 843 tristate "Mediatek SoCs watchdog support" 844 depends on ARCH_MEDIATEK || COMPILE_TEST 845 select WATCHDOG_CORE 846 help 847 Say Y here to include support for the watchdog timer 848 in Mediatek SoCs. 849 To compile this driver as a module, choose M here: the 850 module will be called mtk_wdt. 851 852config DIGICOLOR_WATCHDOG 853 tristate "Conexant Digicolor SoCs watchdog support" 854 depends on ARCH_DIGICOLOR || COMPILE_TEST 855 select WATCHDOG_CORE 856 help 857 Say Y here to include support for the watchdog timer 858 in Conexant Digicolor SoCs. 859 To compile this driver as a module, choose M here: the 860 module will be called digicolor_wdt. 861 862config LPC18XX_WATCHDOG 863 tristate "LPC18xx/43xx Watchdog" 864 depends on ARCH_LPC18XX || COMPILE_TEST 865 depends on HAS_IOMEM 866 select WATCHDOG_CORE 867 help 868 Say Y here if to include support for the watchdog timer 869 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 870 processors. 871 To compile this driver as a module, choose M here: the 872 module will be called lpc18xx_wdt. 873 874config ATLAS7_WATCHDOG 875 tristate "CSRatlas7 watchdog" 876 depends on ARCH_ATLAS7 || COMPILE_TEST 877 help 878 Say Y here to include Watchdog timer support for the watchdog 879 existing on the CSRatlas7 series platforms. 880 881 To compile this driver as a module, choose M here: the 882 module will be called atlas7_wdt. 883 884config RENESAS_WDT 885 tristate "Renesas WDT Watchdog" 886 depends on ARCH_RENESAS || COMPILE_TEST 887 select WATCHDOG_CORE 888 help 889 This driver adds watchdog support for the integrated watchdogs in the 890 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 891 892config RENESAS_RZAWDT 893 tristate "Renesas RZ/A WDT Watchdog" 894 depends on ARCH_RENESAS || COMPILE_TEST 895 select WATCHDOG_CORE 896 help 897 This driver adds watchdog support for the integrated watchdogs in the 898 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 899 900config ASPEED_WATCHDOG 901 tristate "Aspeed BMC watchdog support" 902 depends on ARCH_ASPEED || COMPILE_TEST 903 select WATCHDOG_CORE 904 help 905 Say Y here to include support for the watchdog timer 906 in Aspeed BMC SoCs. 907 908 This driver is required to reboot the SoC. 909 910 To compile this driver as a module, choose M here: the 911 module will be called aspeed_wdt. 912 913config ZX2967_WATCHDOG 914 tristate "ZTE zx2967 SoCs watchdog support" 915 depends on ARCH_ZX 916 select WATCHDOG_CORE 917 help 918 Say Y here to include support for the watchdog timer 919 in ZTE zx2967 SoCs. 920 To compile this driver as a module, choose M here: the 921 module will be called zx2967_wdt. 922 923config STM32_WATCHDOG 924 tristate "STM32 Independent WatchDoG (IWDG) support" 925 depends on ARCH_STM32 926 select WATCHDOG_CORE 927 default y 928 help 929 Say Y here to include support for the watchdog timer 930 in stm32 SoCs. 931 932 To compile this driver as a module, choose M here: the 933 module will be called stm32_iwdg. 934 935config STPMIC1_WATCHDOG 936 tristate "STPMIC1 PMIC watchdog support" 937 depends on MFD_STPMIC1 938 select WATCHDOG_CORE 939 help 940 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 941 If the watchdog timer expires, stpmic1 will shut down all its power 942 supplies. 943 944 To compile this driver as a module, choose M here: the 945 module will be called spmic1_wdt. 946 947config UNIPHIER_WATCHDOG 948 tristate "UniPhier watchdog support" 949 depends on ARCH_UNIPHIER || COMPILE_TEST 950 depends on OF && MFD_SYSCON 951 select WATCHDOG_CORE 952 help 953 Say Y here to include support watchdog timer embedded 954 into the UniPhier system. 955 956 To compile this driver as a module, choose M here: the 957 module will be called uniphier_wdt. 958 959config RTD119X_WATCHDOG 960 bool "Realtek RTD119x/RTD129x watchdog support" 961 depends on ARCH_REALTEK || COMPILE_TEST 962 depends on OF 963 select WATCHDOG_CORE 964 default ARCH_REALTEK 965 help 966 Say Y here to include support for the watchdog timer in 967 Realtek RTD1295 SoCs. 968 969config SPRD_WATCHDOG 970 tristate "Spreadtrum watchdog support" 971 depends on ARCH_SPRD || COMPILE_TEST 972 select WATCHDOG_CORE 973 help 974 Say Y here to include watchdog timer supported 975 by Spreadtrum system. 976 977config PM8916_WATCHDOG 978 tristate "QCOM PM8916 pmic watchdog" 979 depends on OF && MFD_SPMI_PMIC 980 select WATCHDOG_CORE 981 help 982 Say Y here to include support watchdog timer embedded into the 983 pm8916 module. 984 985# X86 (i386 + ia64 + x86_64) Architecture 986 987config ACQUIRE_WDT 988 tristate "Acquire SBC Watchdog Timer" 989 depends on X86 990 ---help--- 991 This is the driver for the hardware watchdog on Single Board 992 Computers produced by Acquire Inc (and others). This watchdog 993 simply watches your kernel to make sure it doesn't freeze, and if 994 it does, it reboots your computer after a certain amount of time. 995 996 To compile this driver as a module, choose M here: the 997 module will be called acquirewdt. 998 999 Most people will say N. 1000 1001config ADVANTECH_WDT 1002 tristate "Advantech SBC Watchdog Timer" 1003 depends on X86 1004 help 1005 If you are configuring a Linux kernel for the Advantech single-board 1006 computer, say `Y' here to support its built-in watchdog timer 1007 feature. More information can be found at 1008 <http://www.advantech.com.tw/products/> 1009 1010config ALIM1535_WDT 1011 tristate "ALi M1535 PMU Watchdog Timer" 1012 depends on X86 && PCI 1013 ---help--- 1014 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1015 1016 To compile this driver as a module, choose M here: the 1017 module will be called alim1535_wdt. 1018 1019 Most people will say N. 1020 1021config ALIM7101_WDT 1022 tristate "ALi M7101 PMU Computer Watchdog" 1023 depends on PCI 1024 help 1025 This is the driver for the hardware watchdog on the ALi M7101 PMU 1026 as used in the x86 Cobalt servers and also found in some 1027 SPARC Netra servers too. 1028 1029 To compile this driver as a module, choose M here: the 1030 module will be called alim7101_wdt. 1031 1032 Most people will say N. 1033 1034config EBC_C384_WDT 1035 tristate "WinSystems EBC-C384 Watchdog Timer" 1036 depends on X86 1037 select ISA_BUS_API 1038 select WATCHDOG_CORE 1039 help 1040 Enables watchdog timer support for the watchdog timer on the 1041 WinSystems EBC-C384 motherboard. The timeout may be configured via 1042 the timeout module parameter. 1043 1044config F71808E_WDT 1045 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1046 depends on X86 1047 help 1048 This is the driver for the hardware watchdog on the Fintek F71808E, 1049 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866 1050 Super I/O controllers. 1051 1052 You can compile this driver directly into the kernel, or use 1053 it as a module. The module will be called f71808e_wdt. 1054 1055config SP5100_TCO 1056 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1057 depends on X86 && PCI 1058 select WATCHDOG_CORE 1059 ---help--- 1060 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1061 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1062 the machine after its expiration. The expiration time can be 1063 configured with the "heartbeat" parameter. 1064 1065 To compile this driver as a module, choose M here: the 1066 module will be called sp5100_tco. 1067 1068config GEODE_WDT 1069 tristate "AMD Geode CS5535/CS5536 Watchdog" 1070 depends on CS5535_MFGPT 1071 help 1072 This driver enables a watchdog capability built into the 1073 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1074 processors. This watchdog watches your kernel to make sure 1075 it doesn't freeze, and if it does, it reboots your computer after 1076 a certain amount of time. 1077 1078 You can compile this driver directly into the kernel, or use 1079 it as a module. The module will be called geodewdt. 1080 1081config SC520_WDT 1082 tristate "AMD Elan SC520 processor Watchdog" 1083 depends on MELAN || COMPILE_TEST 1084 help 1085 This is the driver for the hardware watchdog built in to the 1086 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1087 This watchdog simply watches your kernel to make sure it doesn't 1088 freeze, and if it does, it reboots your computer after a certain 1089 amount of time. 1090 1091 You can compile this driver directly into the kernel, or use 1092 it as a module. The module will be called sc520_wdt. 1093 1094config SBC_FITPC2_WATCHDOG 1095 tristate "Compulab SBC-FITPC2 watchdog" 1096 depends on X86 1097 ---help--- 1098 This is the driver for the built-in watchdog timer on the fit-PC2, 1099 fit-PC2i, CM-iAM single-board computers made by Compulab. 1100 1101 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 1102 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 1103 1104 Entering BIOS setup temporary disables watchdog operation regardless to current state, 1105 so system will not be restarted while user in BIOS setup. 1106 1107 Once watchdog was enabled the system will be restarted every 1108 "Watchdog Timer Value" period, so to prevent it user can restart or 1109 disable the watchdog. 1110 1111 To compile this driver as a module, choose M here: the 1112 module will be called sbc_fitpc2_wdt. 1113 1114 Most people will say N. 1115 1116config EUROTECH_WDT 1117 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1118 depends on X86 1119 help 1120 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1121 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1122 information are at <http://www.eurotech.it/>. 1123 1124config IB700_WDT 1125 tristate "IB700 SBC Watchdog Timer" 1126 depends on X86 1127 ---help--- 1128 This is the driver for the hardware watchdog on the IB700 Single 1129 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 1130 simply watches your kernel to make sure it doesn't freeze, and if 1131 it does, it reboots your computer after a certain amount of time. 1132 1133 This driver is like the WDT501 driver but for slightly different hardware. 1134 1135 To compile this driver as a module, choose M here: the 1136 module will be called ib700wdt. 1137 1138 Most people will say N. 1139 1140config IBMASR 1141 tristate "IBM Automatic Server Restart" 1142 depends on X86 1143 help 1144 This is the driver for the IBM Automatic Server Restart watchdog 1145 timer built-in into some eServer xSeries machines. 1146 1147 To compile this driver as a module, choose M here: the 1148 module will be called ibmasr. 1149 1150config WAFER_WDT 1151 tristate "ICP Single Board Computer Watchdog Timer" 1152 depends on X86 1153 help 1154 This is a driver for the hardware watchdog on the ICP Single 1155 Board Computer. This driver is working on (at least) the following 1156 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1157 1158 To compile this driver as a module, choose M here: the 1159 module will be called wafer5823wdt. 1160 1161config I6300ESB_WDT 1162 tristate "Intel 6300ESB Timer/Watchdog" 1163 depends on PCI 1164 select WATCHDOG_CORE 1165 ---help--- 1166 Hardware driver for the watchdog timer built into the Intel 1167 6300ESB controller hub. 1168 1169 To compile this driver as a module, choose M here: the 1170 module will be called i6300esb. 1171 1172config IE6XX_WDT 1173 tristate "Intel Atom E6xx Watchdog" 1174 depends on X86 && PCI 1175 select WATCHDOG_CORE 1176 select MFD_CORE 1177 select LPC_SCH 1178 ---help--- 1179 Hardware driver for the watchdog timer built into the Intel 1180 Atom E6XX (TunnelCreek) processor. 1181 1182 To compile this driver as a module, choose M here: the 1183 module will be called ie6xx_wdt. 1184 1185config INTEL_SCU_WATCHDOG 1186 bool "Intel SCU Watchdog for Mobile Platforms" 1187 depends on X86_INTEL_MID 1188 ---help--- 1189 Hardware driver for the watchdog time built into the Intel SCU 1190 for Intel Mobile Platforms. 1191 1192 To compile this driver as a module, choose M here. 1193 1194config INTEL_MID_WATCHDOG 1195 tristate "Intel MID Watchdog Timer" 1196 depends on X86_INTEL_MID 1197 select WATCHDOG_CORE 1198 ---help--- 1199 Watchdog timer driver built into the Intel SCU for Intel MID 1200 Platforms. 1201 1202 This driver currently supports only the watchdog evolution 1203 implementation in SCU, available for Merrifield generation. 1204 1205 To compile this driver as a module, choose M here. 1206 1207config ITCO_WDT 1208 tristate "Intel TCO Timer/Watchdog" 1209 depends on (X86 || IA64) && PCI 1210 select WATCHDOG_CORE 1211 depends on I2C || I2C=n 1212 select LPC_ICH if !EXPERT 1213 select I2C_I801 if !EXPERT && I2C 1214 ---help--- 1215 Hardware driver for the intel TCO timer based watchdog devices. 1216 These drivers are included in the Intel 82801 I/O Controller 1217 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1218 controller hub. 1219 1220 The TCO (Total Cost of Ownership) timer is a watchdog timer 1221 that will reboot the machine after its second expiration. The 1222 expiration time can be configured with the "heartbeat" parameter. 1223 1224 On some motherboards the driver may fail to reset the chipset's 1225 NO_REBOOT flag which prevents the watchdog from rebooting the 1226 machine. If this is the case you will get a kernel message like 1227 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1228 1229 To compile this driver as a module, choose M here: the 1230 module will be called iTCO_wdt. 1231 1232config ITCO_VENDOR_SUPPORT 1233 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1234 depends on ITCO_WDT 1235 ---help--- 1236 Add vendor specific support to the intel TCO timer based watchdog 1237 devices. At this moment we only have additional support for some 1238 SuperMicro Inc. motherboards. 1239 1240config IT8712F_WDT 1241 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1242 depends on X86 1243 ---help--- 1244 This is the driver for the built-in watchdog timer on the IT8712F 1245 Super I/0 chipset used on many motherboards. 1246 1247 If the driver does not work, then make sure that the game port in 1248 the BIOS is enabled. 1249 1250 To compile this driver as a module, choose M here: the 1251 module will be called it8712f_wdt. 1252 1253config IT87_WDT 1254 tristate "IT87 Watchdog Timer" 1255 depends on X86 1256 select WATCHDOG_CORE 1257 ---help--- 1258 This is the driver for the hardware watchdog on the ITE IT8607, 1259 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1260 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1261 IT8783 Super I/O chips. 1262 1263 This watchdog simply watches your kernel to make sure it doesn't 1264 freeze, and if it does, it reboots your computer after a certain 1265 amount of time. 1266 1267 To compile this driver as a module, choose M here: the module will 1268 be called it87_wdt. 1269 1270config HP_WATCHDOG 1271 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1272 select WATCHDOG_CORE 1273 depends on X86 && PCI 1274 help 1275 A software monitoring watchdog and NMI handling driver. This driver 1276 will detect lockups and provide a stack trace. This is a driver that 1277 will only load on an HP ProLiant system with a minimum of iLO2 support. 1278 To compile this driver as a module, choose M here: the module will be 1279 called hpwdt. 1280 1281config HPWDT_NMI_DECODING 1282 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1283 depends on HP_WATCHDOG 1284 default y 1285 help 1286 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1287 "Generate NMI to System" virtual button. When an NMI is claimed 1288 by the driver, panic is called. 1289 1290config KEMPLD_WDT 1291 tristate "Kontron COM Watchdog Timer" 1292 depends on MFD_KEMPLD 1293 select WATCHDOG_CORE 1294 help 1295 Support for the PLD watchdog on some Kontron ETX and COMexpress 1296 (ETXexpress) modules 1297 1298 This driver can also be built as a module. If so, the module will be 1299 called kempld_wdt. 1300 1301config SC1200_WDT 1302 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1303 depends on X86 1304 help 1305 This is a driver for National Semiconductor PC87307/PC97307 hardware 1306 watchdog cards as found on the SC1200. This watchdog is mainly used 1307 for power management purposes and can be used to power down the device 1308 during inactivity periods (includes interrupt activity monitoring). 1309 1310 To compile this driver as a module, choose M here: the 1311 module will be called sc1200wdt. 1312 1313 Most people will say N. 1314 1315config SCx200_WDT 1316 tristate "National Semiconductor SCx200 Watchdog" 1317 depends on SCx200 && PCI 1318 help 1319 Enable the built-in watchdog timer support on the National 1320 Semiconductor SCx200 processors. 1321 1322 If compiled as a module, it will be called scx200_wdt. 1323 1324config PC87413_WDT 1325 tristate "NS PC87413 watchdog" 1326 depends on X86 1327 ---help--- 1328 This is the driver for the hardware watchdog on the PC87413 chipset 1329 This watchdog simply watches your kernel to make sure it doesn't 1330 freeze, and if it does, it reboots your computer after a certain 1331 amount of time. 1332 1333 To compile this driver as a module, choose M here: the 1334 module will be called pc87413_wdt. 1335 1336 Most people will say N. 1337 1338config NV_TCO 1339 tristate "nVidia TCO Timer/Watchdog" 1340 depends on X86 && PCI 1341 ---help--- 1342 Hardware driver for the TCO timer built into the nVidia Hub family 1343 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1344 watchdog timer that will reboot the machine after its second 1345 expiration. The expiration time can be configured with the 1346 "heartbeat" parameter. 1347 1348 On some motherboards the driver may fail to reset the chipset's 1349 NO_REBOOT flag which prevents the watchdog from rebooting the 1350 machine. If this is the case you will get a kernel message like 1351 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1352 1353 To compile this driver as a module, choose M here: the 1354 module will be called nv_tco. 1355 1356config RDC321X_WDT 1357 tristate "RDC R-321x SoC watchdog" 1358 depends on X86_RDC321X || COMPILE_TEST 1359 depends on PCI 1360 help 1361 This is the driver for the built in hardware watchdog 1362 in the RDC R-321x SoC. 1363 1364 To compile this driver as a module, choose M here: the 1365 module will be called rdc321x_wdt. 1366 1367config 60XX_WDT 1368 tristate "SBC-60XX Watchdog Timer" 1369 depends on X86 1370 help 1371 This driver can be used with the watchdog timer found on some 1372 single board computers, namely the 6010 PII based computer. 1373 It may well work with other cards. It reads port 0x443 to enable 1374 and re-set the watchdog timer, and reads port 0x45 to disable 1375 the watchdog. If you have a card that behave in similar ways, 1376 you can probably make this driver work with your card as well. 1377 1378 You can compile this driver directly into the kernel, or use 1379 it as a module. The module will be called sbc60xxwdt. 1380 1381config SBC8360_WDT 1382 tristate "SBC8360 Watchdog Timer" 1383 depends on X86_32 1384 ---help--- 1385 1386 This is the driver for the hardware watchdog on the SBC8360 Single 1387 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1388 1389 To compile this driver as a module, choose M here: the 1390 module will be called sbc8360. 1391 1392 Most people will say N. 1393 1394config SBC7240_WDT 1395 tristate "SBC Nano 7240 Watchdog Timer" 1396 depends on X86_32 && !UML 1397 ---help--- 1398 This is the driver for the hardware watchdog found on the IEI 1399 single board computers EPIC Nano 7240 (and likely others). This 1400 watchdog simply watches your kernel to make sure it doesn't freeze, 1401 and if it does, it reboots your computer after a certain amount of 1402 time. 1403 1404 To compile this driver as a module, choose M here: the 1405 module will be called sbc7240_wdt. 1406 1407config CPU5_WDT 1408 tristate "SMA CPU5 Watchdog" 1409 depends on X86 1410 ---help--- 1411 TBD. 1412 To compile this driver as a module, choose M here: the 1413 module will be called cpu5wdt. 1414 1415config SMSC_SCH311X_WDT 1416 tristate "SMSC SCH311X Watchdog Timer" 1417 depends on X86 1418 ---help--- 1419 This is the driver for the hardware watchdog timer on the 1420 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1421 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1422 serial ports). 1423 1424 To compile this driver as a module, choose M here: the 1425 module will be called sch311x_wdt. 1426 1427config SMSC37B787_WDT 1428 tristate "Winbond SMsC37B787 Watchdog Timer" 1429 depends on X86 1430 ---help--- 1431 This is the driver for the hardware watchdog component on the 1432 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1433 from Vision Systems and maybe others. 1434 1435 This watchdog simply watches your kernel to make sure it doesn't 1436 freeze, and if it does, it reboots your computer after a certain 1437 amount of time. 1438 1439 Usually a userspace daemon will notify the kernel WDT driver that 1440 userspace is still alive, at regular intervals. 1441 1442 To compile this driver as a module, choose M here: the 1443 module will be called smsc37b787_wdt. 1444 1445 Most people will say N. 1446 1447config TQMX86_WDT 1448 tristate "TQ-Systems TQMX86 Watchdog Timer" 1449 depends on X86 1450 help 1451 This is the driver for the hardware watchdog timer in the TQMX86 IO 1452 controller found on some of their ComExpress Modules. 1453 1454 To compile this driver as a module, choose M here; the module 1455 will be called tqmx86_wdt. 1456 1457 Most people will say N. 1458 1459config VIA_WDT 1460 tristate "VIA Watchdog Timer" 1461 depends on X86 && PCI 1462 select WATCHDOG_CORE 1463 ---help--- 1464 This is the driver for the hardware watchdog timer on VIA 1465 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1466 1467 To compile this driver as a module, choose M here; the module 1468 will be called via_wdt. 1469 1470 Most people will say N. 1471 1472config W83627HF_WDT 1473 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1474 depends on X86 1475 select WATCHDOG_CORE 1476 ---help--- 1477 This is the driver for the hardware watchdog on the following 1478 Super I/O chips. 1479 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1480 W83637HF 1481 W83667HG/HG-B 1482 W83687THF 1483 W83697HF 1484 W83697UG 1485 NCT6775 1486 NCT6776 1487 NCT6779 1488 NCT6791 1489 NCT6792 1490 NCT6102D/04D/06D 1491 1492 This watchdog simply watches your kernel to make sure it doesn't 1493 freeze, and if it does, it reboots your computer after a certain 1494 amount of time. 1495 1496 To compile this driver as a module, choose M here: the 1497 module will be called w83627hf_wdt. 1498 1499 Most people will say N. 1500 1501config W83877F_WDT 1502 tristate "W83877F (EMACS) Watchdog Timer" 1503 depends on X86 1504 ---help--- 1505 This is the driver for the hardware watchdog on the W83877F chipset 1506 as used in EMACS PC-104 motherboards (and likely others). This 1507 watchdog simply watches your kernel to make sure it doesn't freeze, 1508 and if it does, it reboots your computer after a certain amount of 1509 time. 1510 1511 To compile this driver as a module, choose M here: the 1512 module will be called w83877f_wdt. 1513 1514 Most people will say N. 1515 1516config W83977F_WDT 1517 tristate "W83977F (PCM-5335) Watchdog Timer" 1518 depends on X86 1519 ---help--- 1520 This is the driver for the hardware watchdog on the W83977F I/O chip 1521 as used in AAEON's PCM-5335 SBC (and likely others). This 1522 watchdog simply watches your kernel to make sure it doesn't freeze, 1523 and if it does, it reboots your computer after a certain amount of 1524 time. 1525 1526 To compile this driver as a module, choose M here: the 1527 module will be called w83977f_wdt. 1528 1529config MACHZ_WDT 1530 tristate "ZF MachZ Watchdog" 1531 depends on X86 1532 ---help--- 1533 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1534 N. This is the driver for the watchdog timer built-in on that 1535 processor using ZF-Logic interface. This watchdog simply watches 1536 your kernel to make sure it doesn't freeze, and if it does, it 1537 reboots your computer after a certain amount of time. 1538 1539 To compile this driver as a module, choose M here: the 1540 module will be called machzwd. 1541 1542config SBC_EPX_C3_WATCHDOG 1543 tristate "Winsystems SBC EPX-C3 watchdog" 1544 depends on X86 1545 ---help--- 1546 This is the driver for the built-in watchdog timer on the EPX-C3 1547 Single-board computer made by Winsystems, Inc. 1548 1549 *Note*: This hardware watchdog is not probeable and thus there 1550 is no way to know if writing to its IO address will corrupt 1551 your system or have any real effect. The only way to be sure 1552 that this driver does what you want is to make sure you 1553 are running it on an EPX-C3 from Winsystems with the watchdog 1554 timer at IO address 0x1ee and 0x1ef. It will write to both those 1555 IO ports. Basically, the assumption is made that if you compile 1556 this driver into your kernel and/or load it as a module, that you 1557 know what you are doing and that you are in fact running on an 1558 EPX-C3 board! 1559 1560 To compile this driver as a module, choose M here: the 1561 module will be called sbc_epx_c3. 1562 1563config INTEL_MEI_WDT 1564 tristate "Intel MEI iAMT Watchdog" 1565 depends on INTEL_MEI && X86 1566 select WATCHDOG_CORE 1567 ---help--- 1568 A device driver for the Intel MEI iAMT watchdog. 1569 1570 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1571 Whenever the OS hangs or crashes, iAMT will send an event 1572 to any subscriber to this event. The watchdog doesn't reset the 1573 the platform. 1574 1575 To compile this driver as a module, choose M here: 1576 the module will be called mei_wdt. 1577 1578config NI903X_WDT 1579 tristate "NI 903x/913x Watchdog" 1580 depends on X86 && ACPI 1581 select WATCHDOG_CORE 1582 ---help--- 1583 This is the driver for the watchdog timer on the National Instruments 1584 903x/913x real-time controllers. 1585 1586 To compile this driver as a module, choose M here: the module will be 1587 called ni903x_wdt. 1588 1589config NIC7018_WDT 1590 tristate "NIC7018 Watchdog" 1591 depends on X86 && ACPI 1592 select WATCHDOG_CORE 1593 ---help--- 1594 Support for National Instruments NIC7018 Watchdog. 1595 1596 To compile this driver as a module, choose M here: the module will be 1597 called nic7018_wdt. 1598 1599# M68K Architecture 1600 1601config M54xx_WATCHDOG 1602 tristate "MCF54xx watchdog support" 1603 depends on M548x 1604 help 1605 To compile this driver as a module, choose M here: the 1606 module will be called m54xx_wdt. 1607 1608# MicroBlaze Architecture 1609 1610# MIPS Architecture 1611 1612config ATH79_WDT 1613 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1614 depends on ATH79 || (ARM && COMPILE_TEST) 1615 help 1616 Hardware driver for the built-in watchdog timer on the Atheros 1617 AR71XX/AR724X/AR913X SoCs. 1618 1619config BCM47XX_WDT 1620 tristate "Broadcom BCM47xx Watchdog Timer" 1621 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1622 select WATCHDOG_CORE 1623 help 1624 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1625 1626config RC32434_WDT 1627 tristate "IDT RC32434 SoC Watchdog Timer" 1628 depends on MIKROTIK_RB532 1629 help 1630 Hardware driver for the IDT RC32434 SoC built-in 1631 watchdog timer. 1632 1633 To compile this driver as a module, choose M here: the 1634 module will be called rc32434_wdt. 1635 1636config INDYDOG 1637 tristate "Indy/I2 Hardware Watchdog" 1638 depends on SGI_HAS_INDYDOG 1639 help 1640 Hardware driver for the Indy's/I2's watchdog. This is a 1641 watchdog timer that will reboot the machine after a 60 second 1642 timer expired and no process has written to /dev/watchdog during 1643 that time. 1644 1645config JZ4740_WDT 1646 tristate "Ingenic jz4740 SoC hardware watchdog" 1647 depends on MACH_JZ4740 || MACH_JZ4780 1648 select WATCHDOG_CORE 1649 help 1650 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1651 1652config WDT_MTX1 1653 tristate "MTX-1 Hardware Watchdog" 1654 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1655 help 1656 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1657 will reboot the machine after a 100 seconds timer expired. 1658 1659config PNX833X_WDT 1660 tristate "PNX833x Hardware Watchdog" 1661 depends on SOC_PNX8335 1662 depends on BROKEN 1663 help 1664 Hardware driver for the PNX833x's watchdog. This is a 1665 watchdog timer that will reboot the machine after a programmable 1666 timer has expired and no process has written to /dev/watchdog during 1667 that time. 1668 1669config SIBYTE_WDOG 1670 tristate "Sibyte SoC hardware watchdog" 1671 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1672 help 1673 Watchdog driver for the built in watchdog hardware in Sibyte 1674 SoC processors. There are apparently two watchdog timers 1675 on such processors; this driver supports only the first one, 1676 because currently Linux only supports exporting one watchdog 1677 to userspace. 1678 1679 To compile this driver as a loadable module, choose M here. 1680 The module will be called sb_wdog. 1681 1682config AR7_WDT 1683 tristate "TI AR7 Watchdog Timer" 1684 depends on AR7 || (MIPS && COMPILE_TEST) 1685 help 1686 Hardware driver for the TI AR7 Watchdog Timer. 1687 1688config TXX9_WDT 1689 tristate "Toshiba TXx9 Watchdog Timer" 1690 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1691 select WATCHDOG_CORE 1692 help 1693 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1694 1695config OCTEON_WDT 1696 tristate "Cavium OCTEON SOC family Watchdog Timer" 1697 depends on CAVIUM_OCTEON_SOC 1698 default y 1699 select WATCHDOG_CORE 1700 select EXPORT_UASM if OCTEON_WDT = m 1701 help 1702 Hardware driver for OCTEON's on chip watchdog timer. 1703 Enables the watchdog for all cores running Linux. It 1704 installs a NMI handler and pokes the watchdog based on an 1705 interrupt. On first expiration of the watchdog, the 1706 interrupt handler pokes it. The second expiration causes an 1707 NMI that prints a message. The third expiration causes a 1708 global soft reset. 1709 1710 When userspace has /dev/watchdog open, no poking is done 1711 from the first interrupt, it is then only poked when the 1712 device is written. 1713 1714config BCM63XX_WDT 1715 tristate "Broadcom BCM63xx hardware watchdog" 1716 depends on BCM63XX 1717 help 1718 Watchdog driver for the built in watchdog hardware in Broadcom 1719 BCM63xx SoC. 1720 1721 To compile this driver as a loadable module, choose M here. 1722 The module will be called bcm63xx_wdt. 1723 1724config BCM2835_WDT 1725 tristate "Broadcom BCM2835 hardware watchdog" 1726 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1727 select WATCHDOG_CORE 1728 help 1729 Watchdog driver for the built in watchdog hardware in Broadcom 1730 BCM2835 SoC. 1731 1732 To compile this driver as a loadable module, choose M here. 1733 The module will be called bcm2835_wdt. 1734 1735config BCM_KONA_WDT 1736 tristate "BCM Kona Watchdog" 1737 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1738 select WATCHDOG_CORE 1739 help 1740 Support for the watchdog timer on the following Broadcom BCM281xx 1741 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1742 BCM28155 variants. 1743 1744 Say 'Y' or 'M' here to enable the driver. The module will be called 1745 bcm_kona_wdt. 1746 1747config BCM_KONA_WDT_DEBUG 1748 bool "DEBUGFS support for BCM Kona Watchdog" 1749 depends on BCM_KONA_WDT 1750 help 1751 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1752 access to the driver's internal data structures as well as watchdog 1753 timer hardware registres. 1754 1755 If in doubt, say 'N'. 1756 1757config BCM7038_WDT 1758 tristate "BCM7038 Watchdog" 1759 select WATCHDOG_CORE 1760 depends on HAS_IOMEM 1761 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1762 help 1763 Watchdog driver for the built-in hardware in Broadcom 7038 and 1764 later SoCs used in set-top boxes. BCM7038 was made public 1765 during the 2004 CES, and since then, many Broadcom chips use this 1766 watchdog block, including some cable modem chips. 1767 1768config IMGPDC_WDT 1769 tristate "Imagination Technologies PDC Watchdog Timer" 1770 depends on HAS_IOMEM 1771 depends on MIPS || COMPILE_TEST 1772 select WATCHDOG_CORE 1773 help 1774 Driver for Imagination Technologies PowerDown Controller 1775 Watchdog Timer. 1776 1777 To compile this driver as a loadable module, choose M here. 1778 The module will be called imgpdc_wdt. 1779 1780config LANTIQ_WDT 1781 tristate "Lantiq SoC watchdog" 1782 depends on LANTIQ 1783 select WATCHDOG_CORE 1784 help 1785 Hardware driver for the Lantiq SoC Watchdog Timer. 1786 1787config LOONGSON1_WDT 1788 tristate "Loongson1 SoC hardware watchdog" 1789 depends on MACH_LOONGSON32 1790 select WATCHDOG_CORE 1791 help 1792 Hardware driver for the Loongson1 SoC Watchdog Timer. 1793 1794config RALINK_WDT 1795 tristate "Ralink SoC watchdog" 1796 select WATCHDOG_CORE 1797 depends on RALINK 1798 help 1799 Hardware driver for the Ralink SoC Watchdog Timer. 1800 1801config MT7621_WDT 1802 tristate "Mediatek SoC watchdog" 1803 select WATCHDOG_CORE 1804 depends on SOC_MT7620 || SOC_MT7621 1805 help 1806 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1807 1808config PIC32_WDT 1809 tristate "Microchip PIC32 hardware watchdog" 1810 select WATCHDOG_CORE 1811 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1812 help 1813 Watchdog driver for the built in watchdog hardware in a PIC32. 1814 1815 Configuration bits must be set appropriately for the watchdog to be 1816 controlled by this driver. 1817 1818 To compile this driver as a loadable module, choose M here. 1819 The module will be called pic32-wdt. 1820 1821config PIC32_DMT 1822 tristate "Microchip PIC32 Deadman Timer" 1823 select WATCHDOG_CORE 1824 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1825 help 1826 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1827 timer is typically be used in misson critical and safety critical 1828 applications, where any single failure of the software functionality 1829 and sequencing must be detected. 1830 1831 To compile this driver as a loadable module, choose M here. 1832 The module will be called pic32-dmt. 1833 1834# PARISC Architecture 1835 1836# POWERPC Architecture 1837 1838config GEF_WDT 1839 tristate "GE Watchdog Timer" 1840 depends on GE_FPGA 1841 ---help--- 1842 Watchdog timer found in a number of GE single board computers. 1843 1844config MPC5200_WDT 1845 bool "MPC52xx Watchdog Timer" 1846 depends on PPC_MPC52xx || COMPILE_TEST 1847 help 1848 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1849 1850config 8xxx_WDT 1851 tristate "MPC8xxx Platform Watchdog Timer" 1852 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1853 select WATCHDOG_CORE 1854 help 1855 This driver is for a SoC level watchdog that exists on some 1856 Freescale PowerPC processors. So far this driver supports: 1857 - MPC8xx watchdogs 1858 - MPC83xx watchdogs 1859 - MPC86xx watchdogs 1860 1861 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1862 1863config MV64X60_WDT 1864 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1865 depends on MV64X60 || COMPILE_TEST 1866 1867config PIKA_WDT 1868 tristate "PIKA FPGA Watchdog" 1869 depends on WARP || (PPC64 && COMPILE_TEST) 1870 default y 1871 help 1872 This enables the watchdog in the PIKA FPGA. Currently used on 1873 the Warp platform. 1874 1875config BOOKE_WDT 1876 tristate "PowerPC Book-E Watchdog Timer" 1877 depends on BOOKE || 4xx 1878 select WATCHDOG_CORE 1879 ---help--- 1880 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1881 MPC85xx SOCs and the IBM PowerPC 440. 1882 1883 Please see Documentation/watchdog/watchdog-api.rst for 1884 more information. 1885 1886config BOOKE_WDT_DEFAULT_TIMEOUT 1887 int "PowerPC Book-E Watchdog Timer Default Timeout" 1888 depends on BOOKE_WDT 1889 default 38 if PPC_FSL_BOOK3E 1890 range 0 63 if PPC_FSL_BOOK3E 1891 default 3 if !PPC_FSL_BOOK3E 1892 range 0 3 if !PPC_FSL_BOOK3E 1893 help 1894 Select the default watchdog timer period to be used by the PowerPC 1895 Book-E watchdog driver. A watchdog "event" occurs when the bit 1896 position represented by this number transitions from zero to one. 1897 1898 For Freescale Book-E processors, this is a number between 0 and 63. 1899 For other Book-E processors, this is a number between 0 and 3. 1900 1901 The value can be overridden by the wdt_period command-line parameter. 1902 1903config MEN_A21_WDT 1904 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1905 select WATCHDOG_CORE 1906 depends on GPIOLIB || COMPILE_TEST 1907 help 1908 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1909 1910 The driver can also be built as a module. If so, the module will be 1911 called mena21_wdt. 1912 1913 If unsure select N here. 1914 1915# PPC64 Architecture 1916 1917config WATCHDOG_RTAS 1918 tristate "RTAS watchdog" 1919 depends on PPC_RTAS 1920 help 1921 This driver adds watchdog support for the RTAS watchdog. 1922 1923 To compile this driver as a module, choose M here. The module 1924 will be called wdrtas. 1925 1926# S390 Architecture 1927 1928config DIAG288_WATCHDOG 1929 tristate "System z diag288 Watchdog" 1930 depends on S390 1931 select WATCHDOG_CORE 1932 help 1933 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1934 provide a virtual watchdog timer to their guest that cause a 1935 user define Control Program command to be executed after a 1936 timeout. 1937 LPAR provides a very similar interface. This driver handles 1938 both. 1939 1940 To compile this driver as a module, choose M here. The module 1941 will be called diag288_wdt. 1942 1943# SUPERH (sh + sh64) Architecture 1944 1945config SH_WDT 1946 tristate "SuperH Watchdog" 1947 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1948 select WATCHDOG_CORE 1949 help 1950 This driver adds watchdog support for the integrated watchdog in the 1951 SuperH processors. If you have one of these processors and wish 1952 to have watchdog support enabled, say Y, otherwise say N. 1953 1954 As a side note, saying Y here will automatically boost HZ to 1000 1955 so that the timer has a chance to clear the overflow counter. On 1956 slower systems (such as the SH-2 and SH-3) this will likely yield 1957 some performance issues. As such, the WDT should be avoided here 1958 unless it is absolutely necessary. 1959 1960 To compile this driver as a module, choose M here: the 1961 module will be called shwdt. 1962 1963# SPARC Architecture 1964 1965# SPARC64 Architecture 1966 1967config WATCHDOG_CP1XXX 1968 tristate "CP1XXX Hardware Watchdog support" 1969 depends on SPARC64 && PCI 1970 ---help--- 1971 This is the driver for the hardware watchdog timers present on 1972 Sun Microsystems CompactPCI models CP1400 and CP1500. 1973 1974 To compile this driver as a module, choose M here: the 1975 module will be called cpwatchdog. 1976 1977 If you do not have a CompactPCI model CP1400 or CP1500, or 1978 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1979 you should say N to this option. 1980 1981config WATCHDOG_RIO 1982 tristate "RIO Hardware Watchdog support" 1983 depends on SPARC64 && PCI 1984 help 1985 Say Y here to support the hardware watchdog capability on Sun RIO 1986 machines. The watchdog timeout period is normally one minute but 1987 can be changed with a boot-time parameter. 1988 1989config WATCHDOG_SUN4V 1990 tristate "Sun4v Watchdog support" 1991 select WATCHDOG_CORE 1992 depends on SPARC64 1993 help 1994 Say Y here to support the hypervisor watchdog capability embedded 1995 in the SPARC sun4v architecture. 1996 1997 To compile this driver as a module, choose M here. The module will 1998 be called sun4v_wdt. 1999 2000# XTENSA Architecture 2001 2002# Xen Architecture 2003 2004config XEN_WDT 2005 tristate "Xen Watchdog support" 2006 depends on XEN 2007 select WATCHDOG_CORE 2008 help 2009 Say Y here to support the hypervisor watchdog capability provided 2010 by Xen 4.0 and newer. The watchdog timeout period is normally one 2011 minute but can be changed with a boot-time parameter. 2012 2013config UML_WATCHDOG 2014 tristate "UML watchdog" 2015 depends on UML || COMPILE_TEST 2016 2017# 2018# ISA-based Watchdog Cards 2019# 2020 2021comment "ISA-based Watchdog Cards" 2022 depends on ISA 2023 2024config PCWATCHDOG 2025 tristate "Berkshire Products ISA-PC Watchdog" 2026 depends on ISA 2027 ---help--- 2028 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2029 This card simply watches your kernel to make sure it doesn't freeze, 2030 and if it does, it reboots your computer after a certain amount of 2031 time. This driver is like the WDT501 driver but for different 2032 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC 2033 watchdog cards can be ordered from <http://www.berkprod.com/>. 2034 2035 To compile this driver as a module, choose M here: the 2036 module will be called pcwd. 2037 2038 Most people will say N. 2039 2040config MIXCOMWD 2041 tristate "Mixcom Watchdog" 2042 depends on ISA 2043 ---help--- 2044 This is a driver for the Mixcom hardware watchdog cards. This 2045 watchdog simply watches your kernel to make sure it doesn't freeze, 2046 and if it does, it reboots your computer after a certain amount of 2047 time. 2048 2049 To compile this driver as a module, choose M here: the 2050 module will be called mixcomwd. 2051 2052 Most people will say N. 2053 2054config WDT 2055 tristate "WDT Watchdog timer" 2056 depends on ISA 2057 ---help--- 2058 If you have a WDT500P or WDT501P watchdog board, say Y here, 2059 otherwise N. It is not possible to probe for this board, which means 2060 that you have to inform the kernel about the IO port and IRQ that 2061 is needed (you can do this via the io and irq parameters) 2062 2063 To compile this driver as a module, choose M here: the 2064 module will be called wdt. 2065 2066# 2067# PCI-based Watchdog Cards 2068# 2069 2070comment "PCI-based Watchdog Cards" 2071 depends on PCI 2072 2073config PCIPCWATCHDOG 2074 tristate "Berkshire Products PCI-PC Watchdog" 2075 depends on PCI 2076 ---help--- 2077 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2078 This card simply watches your kernel to make sure it doesn't freeze, 2079 and if it does, it reboots your computer after a certain amount of 2080 time. The card can also monitor the internal temperature of the PC. 2081 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2082 2083 To compile this driver as a module, choose M here: the 2084 module will be called pcwd_pci. 2085 2086 Most people will say N. 2087 2088config WDTPCI 2089 tristate "PCI-WDT500/501 Watchdog timer" 2090 depends on PCI 2091 ---help--- 2092 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2093 2094 If you have a PCI-WDT501 watchdog board then you can enable the 2095 temperature sensor by setting the type parameter to 501. 2096 2097 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2098 can do this via the tachometer parameter. Only do this if you have a 2099 fan tachometer actually set up. 2100 2101 To compile this driver as a module, choose M here: the 2102 module will be called wdt_pci. 2103 2104# 2105# USB-based Watchdog Cards 2106# 2107 2108comment "USB-based Watchdog Cards" 2109 depends on USB 2110 2111config USBPCWATCHDOG 2112 tristate "Berkshire Products USB-PC Watchdog" 2113 depends on USB 2114 ---help--- 2115 This is the driver for the Berkshire Products USB-PC Watchdog card. 2116 This card simply watches your kernel to make sure it doesn't freeze, 2117 and if it does, it reboots your computer after a certain amount of 2118 time. The card can also monitor the internal temperature of the PC. 2119 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2120 2121 To compile this driver as a module, choose M here: the 2122 module will be called pcwd_usb. 2123 2124 Most people will say N. 2125 2126endif # WATCHDOG 2127