1 2# 3# Watchdog device configuration 4# 5 6menuconfig WATCHDOG 7 bool "Watchdog Timer Support" 8 ---help--- 9 If you say Y here (and to one of the following options) and create a 10 character special file /dev/watchdog with major number 10 and minor 11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 12 subsequently opening the file and then failing to write to it for 13 longer than 1 minute will result in rebooting the machine. This 14 could be useful for a networked machine that needs to come back 15 on-line as fast as possible after a lock-up. There's both a watchdog 16 implementation entirely in software (which can sometimes fail to 17 reboot the machine) and a driver for hardware watchdog boards, which 18 are more robust and can also keep track of the temperature inside 19 your computer. For details, read 20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 21 22 The watchdog is usually used together with the watchdog daemon 23 which is available from 24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 25 also monitor NFS connections and can reboot the machine when the process 26 table is full. 27 28 If unsure, say N. 29 30if WATCHDOG 31 32config WATCHDOG_CORE 33 bool "WatchDog Timer Driver Core" 34 ---help--- 35 Say Y here if you want to use the new watchdog timer driver core. 36 This driver provides a framework for all watchdog timer drivers 37 and gives them the /dev/watchdog interface (and later also the 38 sysfs interface). 39 40config WATCHDOG_NOWAYOUT 41 bool "Disable watchdog shutdown on close" 42 help 43 The default watchdog behaviour (which you get if you say N here) is 44 to stop the timer if the process managing it closes the file 45 /dev/watchdog. It's always remotely possible that this process might 46 get killed. If you say Y here, the watchdog cannot be stopped once 47 it has been started. 48 49# 50# General Watchdog drivers 51# 52 53comment "Watchdog Device Drivers" 54 55# Architecture Independent 56 57config SOFT_WATCHDOG 58 tristate "Software watchdog" 59 select WATCHDOG_CORE 60 help 61 A software monitoring watchdog. This will fail to reboot your system 62 from some situations that the hardware watchdog will recover 63 from. Equally it's a lot cheaper to install. 64 65 To compile this driver as a module, choose M here: the 66 module will be called softdog. 67 68config DA9052_WATCHDOG 69 tristate "Dialog DA9052 Watchdog" 70 depends on PMIC_DA9052 71 select WATCHDOG_CORE 72 help 73 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 74 cause system reset. 75 76 Say Y here to include support for the DA9052 watchdog. 77 Alternatively say M to compile the driver as a module, 78 which will be called da9052_wdt. 79 80config DA9055_WATCHDOG 81 tristate "Dialog Semiconductor DA9055 Watchdog" 82 depends on MFD_DA9055 83 select WATCHDOG_CORE 84 help 85 If you say yes here you get support for watchdog on the Dialog 86 Semiconductor DA9055 PMIC. 87 88 This driver can also be built as a module. If so, the module 89 will be called da9055_wdt. 90 91config DA9063_WATCHDOG 92 tristate "Dialog DA9063 Watchdog" 93 depends on MFD_DA9063 94 select WATCHDOG_CORE 95 help 96 Support for the watchdog in the DA9063 PMIC. 97 98 This driver can be built as a module. The module name is da9063_wdt. 99 100config DA9062_WATCHDOG 101 tristate "Dialog DA9062 Watchdog" 102 depends on MFD_DA9062 103 select WATCHDOG_CORE 104 help 105 Support for the watchdog in the DA9062 PMIC. 106 107 This driver can be built as a module. The module name is da9062_wdt. 108 109config GPIO_WATCHDOG 110 tristate "Watchdog device controlled through GPIO-line" 111 depends on OF_GPIO 112 select WATCHDOG_CORE 113 help 114 If you say yes here you get support for watchdog device 115 controlled through GPIO-line. 116 117config GPIO_WATCHDOG_ARCH_INITCALL 118 bool "Register the watchdog as early as possible" 119 depends on GPIO_WATCHDOG=y 120 help 121 In some situations, the default initcall level (module_init) 122 in not early enough in the boot process to avoid the watchdog 123 to be triggered. 124 If you say yes here, the initcall level would be raised to 125 arch_initcall. 126 If in doubt, say N. 127 128config MENF21BMC_WATCHDOG 129 tristate "MEN 14F021P00 BMC Watchdog" 130 depends on MFD_MENF21BMC 131 select WATCHDOG_CORE 132 help 133 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 134 135 This driver can also be built as a module. If so the module 136 will be called menf21bmc_wdt. 137 138config WM831X_WATCHDOG 139 tristate "WM831x watchdog" 140 depends on MFD_WM831X 141 select WATCHDOG_CORE 142 help 143 Support for the watchdog in the WM831x AudioPlus PMICs. When 144 the watchdog triggers the system will be reset. 145 146config WM8350_WATCHDOG 147 tristate "WM8350 watchdog" 148 depends on MFD_WM8350 149 select WATCHDOG_CORE 150 help 151 Support for the watchdog in the WM8350 AudioPlus PMIC. When 152 the watchdog triggers the system will be reset. 153 154config XILINX_WATCHDOG 155 tristate "Xilinx Watchdog timer" 156 depends on HAS_IOMEM 157 select WATCHDOG_CORE 158 help 159 Watchdog driver for the xps_timebase_wdt ip core. 160 161 To compile this driver as a module, choose M here: the 162 module will be called of_xilinx_wdt. 163 164# ALPHA Architecture 165 166# ARM Architecture 167 168config ARM_SP805_WATCHDOG 169 tristate "ARM SP805 Watchdog" 170 depends on (ARM || ARM64) && ARM_AMBA 171 select WATCHDOG_CORE 172 help 173 ARM Primecell SP805 Watchdog timer. This will reboot your system when 174 the timeout is reached. 175 176config AT91RM9200_WATCHDOG 177 tristate "AT91RM9200 watchdog" 178 depends on SOC_AT91RM9200 && MFD_SYSCON 179 help 180 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 181 system when the timeout is reached. 182 183config AT91SAM9X_WATCHDOG 184 tristate "AT91SAM9X / AT91CAP9 watchdog" 185 depends on ARCH_AT91 186 select WATCHDOG_CORE 187 help 188 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 189 reboot your system when the timeout is reached. 190 191config CADENCE_WATCHDOG 192 tristate "Cadence Watchdog Timer" 193 depends on HAS_IOMEM 194 select WATCHDOG_CORE 195 help 196 Say Y here if you want to include support for the watchdog 197 timer in the Xilinx Zynq. 198 199config 21285_WATCHDOG 200 tristate "DC21285 watchdog" 201 depends on FOOTBRIDGE 202 help 203 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 204 here if you wish to use this. Alternatively say M to compile the 205 driver as a module, which will be called wdt285. 206 207 This driver does not work on all machines. In particular, early CATS 208 boards have hardware problems that will cause the machine to simply 209 lock up if the watchdog fires. 210 211 "If in doubt, leave it out" - say N. 212 213config 977_WATCHDOG 214 tristate "NetWinder WB83C977 watchdog" 215 depends on FOOTBRIDGE && ARCH_NETWINDER 216 help 217 Say Y here to include support for the WB977 watchdog included in 218 NetWinder machines. Alternatively say M to compile the driver as 219 a module, which will be called wdt977. 220 221 Not sure? It's safe to say N. 222 223config IXP4XX_WATCHDOG 224 tristate "IXP4xx Watchdog" 225 depends on ARCH_IXP4XX 226 help 227 Say Y here if to include support for the watchdog timer 228 in the Intel IXP4xx network processors. This driver can 229 be built as a module by choosing M. The module will 230 be called ixp4xx_wdt. 231 232 Note: The internal IXP4xx watchdog does a soft CPU reset 233 which doesn't reset any peripherals. There are circumstances 234 where the watchdog will fail to reset the board correctly 235 (e.g., if the boot ROM is in an unreadable state). 236 237 Say N if you are unsure. 238 239config KS8695_WATCHDOG 240 tristate "KS8695 watchdog" 241 depends on ARCH_KS8695 242 help 243 Watchdog timer embedded into KS8695 processor. This will reboot your 244 system when the timeout is reached. 245 246config HAVE_S3C2410_WATCHDOG 247 bool 248 help 249 This will include watchdog timer support for Samsung SoCs. If 250 you want to include watchdog support for any machine, kindly 251 select this in the respective mach-XXXX/Kconfig file. 252 253config S3C2410_WATCHDOG 254 tristate "S3C2410 Watchdog" 255 depends on HAVE_S3C2410_WATCHDOG 256 select WATCHDOG_CORE 257 select MFD_SYSCON if ARCH_EXYNOS5 258 help 259 Watchdog timer block in the Samsung SoCs. This will reboot 260 the system when the timer expires with the watchdog enabled. 261 262 The driver is limited by the speed of the system's PCLK 263 signal, so with reasonably fast systems (PCLK around 50-66MHz) 264 then watchdog intervals of over approximately 20seconds are 265 unavailable. 266 267 The driver can be built as a module by choosing M, and will 268 be called s3c2410_wdt 269 270config SA1100_WATCHDOG 271 tristate "SA1100/PXA2xx watchdog" 272 depends on ARCH_SA1100 || ARCH_PXA 273 help 274 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 275 reboot your system when timeout is reached. 276 277 NOTE: once enabled, this timer cannot be disabled. 278 279 To compile this driver as a module, choose M here: the 280 module will be called sa1100_wdt. 281 282config DW_WATCHDOG 283 tristate "Synopsys DesignWare watchdog" 284 depends on HAS_IOMEM 285 help 286 Say Y here if to include support for the Synopsys DesignWare 287 watchdog timer found in many chips. 288 To compile this driver as a module, choose M here: the 289 module will be called dw_wdt. 290 291config EP93XX_WATCHDOG 292 tristate "EP93xx Watchdog" 293 depends on ARCH_EP93XX 294 select WATCHDOG_CORE 295 help 296 Say Y here if to include support for the watchdog timer 297 embedded in the Cirrus Logic EP93xx family of devices. 298 299 To compile this driver as a module, choose M here: the 300 module will be called ep93xx_wdt. 301 302config OMAP_WATCHDOG 303 tristate "OMAP Watchdog" 304 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 305 select WATCHDOG_CORE 306 help 307 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 308 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 309 310config PNX4008_WATCHDOG 311 tristate "LPC32XX Watchdog" 312 depends on ARCH_LPC32XX 313 select WATCHDOG_CORE 314 help 315 Say Y here if to include support for the watchdog timer 316 in the LPC32XX processor. 317 This driver can be built as a module by choosing M. The module 318 will be called pnx4008_wdt. 319 320 Say N if you are unsure. 321 322config IOP_WATCHDOG 323 tristate "IOP Watchdog" 324 depends on ARCH_IOP13XX 325 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 326 help 327 Say Y here if to include support for the watchdog timer 328 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 329 be built as a module by choosing M. The module will 330 be called iop_wdt. 331 332 Note: The IOP13XX watchdog does an Internal Bus Reset which will 333 affect both cores and the peripherals of the IOP. The ATU-X 334 and/or ATUe configuration registers will remain intact, but if 335 operating as an Root Complex and/or Central Resource, the PCI-X 336 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 337 338config DAVINCI_WATCHDOG 339 tristate "DaVinci watchdog" 340 depends on ARCH_DAVINCI || ARCH_KEYSTONE 341 select WATCHDOG_CORE 342 help 343 Say Y here if to include support for the watchdog timer 344 in the DaVinci DM644x/DM646x or Keystone processors. 345 To compile this driver as a module, choose M here: the 346 module will be called davinci_wdt. 347 348 NOTE: once enabled, this timer cannot be disabled. 349 Say N if you are unsure. 350 351config ORION_WATCHDOG 352 tristate "Orion watchdog" 353 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU 354 select WATCHDOG_CORE 355 help 356 Say Y here if to include support for the watchdog timer 357 in the Marvell Orion5x and Kirkwood ARM SoCs. 358 To compile this driver as a module, choose M here: the 359 module will be called orion_wdt. 360 361config RN5T618_WATCHDOG 362 tristate "Ricoh RN5T618 watchdog" 363 depends on MFD_RN5T618 364 select WATCHDOG_CORE 365 help 366 If you say yes here you get support for watchdog on the Ricoh 367 RN5T618 PMIC. 368 369 This driver can also be built as a module. If so, the module 370 will be called rn5t618_wdt. 371 372config SUNXI_WATCHDOG 373 tristate "Allwinner SoCs watchdog support" 374 depends on ARCH_SUNXI 375 select WATCHDOG_CORE 376 help 377 Say Y here to include support for the watchdog timer 378 in Allwinner SoCs. 379 To compile this driver as a module, choose M here: the 380 module will be called sunxi_wdt. 381 382config COH901327_WATCHDOG 383 bool "ST-Ericsson COH 901 327 watchdog" 384 depends on ARCH_U300 385 default y if MACH_U300 386 select WATCHDOG_CORE 387 help 388 Say Y here to include Watchdog timer support for the 389 watchdog embedded into the ST-Ericsson U300 series platforms. 390 This watchdog is used to reset the system and thus cannot be 391 compiled as a module. 392 393config TWL4030_WATCHDOG 394 tristate "TWL4030 Watchdog" 395 depends on TWL4030_CORE 396 select WATCHDOG_CORE 397 help 398 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 399 watchdog timer support for TWL4030 chips. 400 401config STMP3XXX_RTC_WATCHDOG 402 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 403 depends on RTC_DRV_STMP 404 select WATCHDOG_CORE 405 help 406 Say Y here to include support for the watchdog timer inside 407 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 408 To compile this driver as a module, choose M here: the 409 module will be called stmp3xxx_rtc_wdt. 410 411config NUC900_WATCHDOG 412 tristate "Nuvoton NUC900 watchdog" 413 depends on ARCH_W90X900 414 help 415 Say Y here if to include support for the watchdog timer 416 for the Nuvoton NUC900 series SoCs. 417 To compile this driver as a module, choose M here: the 418 module will be called nuc900_wdt. 419 420config TS72XX_WATCHDOG 421 tristate "TS-72XX SBC Watchdog" 422 depends on MACH_TS72XX 423 help 424 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 425 watchdog timer implemented in a external CPLD chip. Say Y here 426 if you want to support for the watchdog timer on TS-72XX boards. 427 428 To compile this driver as a module, choose M here: the 429 module will be called ts72xx_wdt. 430 431config MAX63XX_WATCHDOG 432 tristate "Max63xx watchdog" 433 depends on HAS_IOMEM 434 select WATCHDOG_CORE 435 help 436 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 437 438config IMX2_WDT 439 tristate "IMX2+ Watchdog" 440 depends on ARCH_MXC 441 select REGMAP_MMIO 442 select WATCHDOG_CORE 443 help 444 This is the driver for the hardware watchdog 445 on the Freescale IMX2 and later processors. 446 If you have one of these processors and wish to have 447 watchdog support enabled, say Y, otherwise say N. 448 449 To compile this driver as a module, choose M here: the 450 module will be called imx2_wdt. 451 452config UX500_WATCHDOG 453 tristate "ST-Ericsson Ux500 watchdog" 454 depends on MFD_DB8500_PRCMU 455 select WATCHDOG_CORE 456 default y 457 help 458 Say Y here to include Watchdog timer support for the watchdog 459 existing in the prcmu of ST-Ericsson Ux500 series platforms. 460 461 To compile this driver as a module, choose M here: the 462 module will be called ux500_wdt. 463 464config RETU_WATCHDOG 465 tristate "Retu watchdog" 466 depends on MFD_RETU 467 select WATCHDOG_CORE 468 help 469 Retu watchdog driver for Nokia Internet Tablets (770, N800, 470 N810). At least on N800 the watchdog cannot be disabled, so 471 this driver is essential and you should enable it. 472 473 To compile this driver as a module, choose M here: the 474 module will be called retu_wdt. 475 476config MOXART_WDT 477 tristate "MOXART watchdog" 478 depends on ARCH_MOXART 479 help 480 Say Y here to include Watchdog timer support for the watchdog 481 existing on the MOXA ART SoC series platforms. 482 483 To compile this driver as a module, choose M here: the 484 module will be called moxart_wdt. 485 486config SIRFSOC_WATCHDOG 487 tristate "SiRFSOC watchdog" 488 depends on ARCH_SIRF 489 select WATCHDOG_CORE 490 default y 491 help 492 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 493 the watchdog triggers the system will be reset. 494 495config ST_LPC_WATCHDOG 496 tristate "STMicroelectronics LPC Watchdog" 497 depends on ARCH_STI 498 depends on OF 499 select WATCHDOG_CORE 500 help 501 Say Y here to include STMicroelectronics Low Power Controller 502 (LPC) based Watchdog timer support. 503 504 To compile this driver as a module, choose M here: the 505 module will be called st_lpc_wdt. 506 507config TEGRA_WATCHDOG 508 tristate "Tegra watchdog" 509 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 510 select WATCHDOG_CORE 511 help 512 Say Y here to include support for the watchdog timer 513 embedded in NVIDIA Tegra SoCs. 514 515 To compile this driver as a module, choose M here: the 516 module will be called tegra_wdt. 517 518config QCOM_WDT 519 tristate "QCOM watchdog" 520 depends on HAS_IOMEM 521 depends on ARCH_QCOM 522 select WATCHDOG_CORE 523 help 524 Say Y here to include Watchdog timer support for the watchdog found 525 on QCOM chipsets. Currently supported targets are the MSM8960, 526 APQ8064, and IPQ8064. 527 528 To compile this driver as a module, choose M here: the 529 module will be called qcom_wdt. 530 531config MESON_WATCHDOG 532 tristate "Amlogic Meson SoCs watchdog support" 533 depends on ARCH_MESON 534 select WATCHDOG_CORE 535 help 536 Say Y here to include support for the watchdog timer 537 in Amlogic Meson SoCs. 538 To compile this driver as a module, choose M here: the 539 module will be called meson_wdt. 540 541config MEDIATEK_WATCHDOG 542 tristate "Mediatek SoCs watchdog support" 543 depends on ARCH_MEDIATEK 544 select WATCHDOG_CORE 545 help 546 Say Y here to include support for the watchdog timer 547 in Mediatek SoCs. 548 To compile this driver as a module, choose M here: the 549 module will be called mtk_wdt. 550 551config DIGICOLOR_WATCHDOG 552 tristate "Conexant Digicolor SoCs watchdog support" 553 depends on ARCH_DIGICOLOR 554 select WATCHDOG_CORE 555 help 556 Say Y here to include support for the watchdog timer 557 in Conexant Digicolor SoCs. 558 To compile this driver as a module, choose M here: the 559 module will be called digicolor_wdt. 560 561# AVR32 Architecture 562 563config AT32AP700X_WDT 564 tristate "AT32AP700x watchdog" 565 depends on CPU_AT32AP700X 566 help 567 Watchdog timer embedded into AT32AP700x devices. This will reboot 568 your system when the timeout is reached. 569 570# BLACKFIN Architecture 571 572config BFIN_WDT 573 tristate "Blackfin On-Chip Watchdog Timer" 574 depends on BLACKFIN 575 ---help--- 576 If you say yes here you will get support for the Blackfin On-Chip 577 Watchdog Timer. If you have one of these processors and wish to 578 have watchdog support enabled, say Y, otherwise say N. 579 580 To compile this driver as a module, choose M here: the 581 module will be called bfin_wdt. 582 583# CRIS Architecture 584 585# FRV Architecture 586 587# X86 (i386 + ia64 + x86_64) Architecture 588 589config ACQUIRE_WDT 590 tristate "Acquire SBC Watchdog Timer" 591 depends on X86 592 ---help--- 593 This is the driver for the hardware watchdog on Single Board 594 Computers produced by Acquire Inc (and others). This watchdog 595 simply watches your kernel to make sure it doesn't freeze, and if 596 it does, it reboots your computer after a certain amount of time. 597 598 To compile this driver as a module, choose M here: the 599 module will be called acquirewdt. 600 601 Most people will say N. 602 603config ADVANTECH_WDT 604 tristate "Advantech SBC Watchdog Timer" 605 depends on X86 606 help 607 If you are configuring a Linux kernel for the Advantech single-board 608 computer, say `Y' here to support its built-in watchdog timer 609 feature. More information can be found at 610 <http://www.advantech.com.tw/products/> 611 612config ALIM1535_WDT 613 tristate "ALi M1535 PMU Watchdog Timer" 614 depends on X86 && PCI 615 ---help--- 616 This is the driver for the hardware watchdog on the ALi M1535 PMU. 617 618 To compile this driver as a module, choose M here: the 619 module will be called alim1535_wdt. 620 621 Most people will say N. 622 623config ALIM7101_WDT 624 tristate "ALi M7101 PMU Computer Watchdog" 625 depends on PCI 626 help 627 This is the driver for the hardware watchdog on the ALi M7101 PMU 628 as used in the x86 Cobalt servers and also found in some 629 SPARC Netra servers too. 630 631 To compile this driver as a module, choose M here: the 632 module will be called alim7101_wdt. 633 634 Most people will say N. 635 636config F71808E_WDT 637 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 638 depends on X86 639 help 640 This is the driver for the hardware watchdog on the Fintek 641 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 642 643 You can compile this driver directly into the kernel, or use 644 it as a module. The module will be called f71808e_wdt. 645 646config SP5100_TCO 647 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 648 depends on X86 && PCI 649 ---help--- 650 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 651 (Total Cost of Ownership) timer is a watchdog timer that will reboot 652 the machine after its expiration. The expiration time can be 653 configured with the "heartbeat" parameter. 654 655 To compile this driver as a module, choose M here: the 656 module will be called sp5100_tco. 657 658config GEODE_WDT 659 tristate "AMD Geode CS5535/CS5536 Watchdog" 660 depends on CS5535_MFGPT 661 help 662 This driver enables a watchdog capability built into the 663 CS5535/CS5536 companion chips for the AMD Geode GX and LX 664 processors. This watchdog watches your kernel to make sure 665 it doesn't freeze, and if it does, it reboots your computer after 666 a certain amount of time. 667 668 You can compile this driver directly into the kernel, or use 669 it as a module. The module will be called geodewdt. 670 671config SC520_WDT 672 tristate "AMD Elan SC520 processor Watchdog" 673 depends on MELAN 674 help 675 This is the driver for the hardware watchdog built in to the 676 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 677 This watchdog simply watches your kernel to make sure it doesn't 678 freeze, and if it does, it reboots your computer after a certain 679 amount of time. 680 681 You can compile this driver directly into the kernel, or use 682 it as a module. The module will be called sc520_wdt. 683 684config SBC_FITPC2_WATCHDOG 685 tristate "Compulab SBC-FITPC2 watchdog" 686 depends on X86 687 ---help--- 688 This is the driver for the built-in watchdog timer on the fit-PC2, 689 fit-PC2i, CM-iAM single-board computers made by Compulab. 690 691 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 692 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 693 694 Entering BIOS setup temporary disables watchdog operation regardless to current state, 695 so system will not be restarted while user in BIOS setup. 696 697 Once watchdog was enabled the system will be restarted every 698 "Watchdog Timer Value" period, so to prevent it user can restart or 699 disable the watchdog. 700 701 To compile this driver as a module, choose M here: the 702 module will be called sbc_fitpc2_wdt. 703 704 Most people will say N. 705 706config EUROTECH_WDT 707 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 708 depends on X86 709 help 710 Enable support for the watchdog timer on the Eurotech CPU-1220 and 711 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 712 information are at <http://www.eurotech.it/>. 713 714config IB700_WDT 715 tristate "IB700 SBC Watchdog Timer" 716 depends on X86 717 ---help--- 718 This is the driver for the hardware watchdog on the IB700 Single 719 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 720 simply watches your kernel to make sure it doesn't freeze, and if 721 it does, it reboots your computer after a certain amount of time. 722 723 This driver is like the WDT501 driver but for slightly different hardware. 724 725 To compile this driver as a module, choose M here: the 726 module will be called ib700wdt. 727 728 Most people will say N. 729 730config IBMASR 731 tristate "IBM Automatic Server Restart" 732 depends on X86 733 help 734 This is the driver for the IBM Automatic Server Restart watchdog 735 timer built-in into some eServer xSeries machines. 736 737 To compile this driver as a module, choose M here: the 738 module will be called ibmasr. 739 740config WAFER_WDT 741 tristate "ICP Single Board Computer Watchdog Timer" 742 depends on X86 743 help 744 This is a driver for the hardware watchdog on the ICP Single 745 Board Computer. This driver is working on (at least) the following 746 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 747 748 To compile this driver as a module, choose M here: the 749 module will be called wafer5823wdt. 750 751config I6300ESB_WDT 752 tristate "Intel 6300ESB Timer/Watchdog" 753 depends on PCI 754 ---help--- 755 Hardware driver for the watchdog timer built into the Intel 756 6300ESB controller hub. 757 758 To compile this driver as a module, choose M here: the 759 module will be called i6300esb. 760 761config IE6XX_WDT 762 tristate "Intel Atom E6xx Watchdog" 763 depends on X86 && PCI 764 select WATCHDOG_CORE 765 select MFD_CORE 766 select LPC_SCH 767 ---help--- 768 Hardware driver for the watchdog timer built into the Intel 769 Atom E6XX (TunnelCreek) processor. 770 771 To compile this driver as a module, choose M here: the 772 module will be called ie6xx_wdt. 773 774config INTEL_SCU_WATCHDOG 775 bool "Intel SCU Watchdog for Mobile Platforms" 776 depends on X86_INTEL_MID 777 ---help--- 778 Hardware driver for the watchdog time built into the Intel SCU 779 for Intel Mobile Platforms. 780 781 To compile this driver as a module, choose M here. 782 783config INTEL_MID_WATCHDOG 784 tristate "Intel MID Watchdog Timer" 785 depends on X86_INTEL_MID 786 select WATCHDOG_CORE 787 ---help--- 788 Watchdog timer driver built into the Intel SCU for Intel MID 789 Platforms. 790 791 This driver currently supports only the watchdog evolution 792 implementation in SCU, available for Merrifield generation. 793 794 To compile this driver as a module, choose M here. 795 796config ITCO_WDT 797 tristate "Intel TCO Timer/Watchdog" 798 depends on (X86 || IA64) && PCI 799 select WATCHDOG_CORE 800 select LPC_ICH if !EXPERT 801 select I2C_I801 if !EXPERT 802 ---help--- 803 Hardware driver for the intel TCO timer based watchdog devices. 804 These drivers are included in the Intel 82801 I/O Controller 805 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 806 controller hub. 807 808 The TCO (Total Cost of Ownership) timer is a watchdog timer 809 that will reboot the machine after its second expiration. The 810 expiration time can be configured with the "heartbeat" parameter. 811 812 On some motherboards the driver may fail to reset the chipset's 813 NO_REBOOT flag which prevents the watchdog from rebooting the 814 machine. If this is the case you will get a kernel message like 815 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 816 817 To compile this driver as a module, choose M here: the 818 module will be called iTCO_wdt. 819 820config ITCO_VENDOR_SUPPORT 821 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 822 depends on ITCO_WDT 823 ---help--- 824 Add vendor specific support to the intel TCO timer based watchdog 825 devices. At this moment we only have additional support for some 826 SuperMicro Inc. motherboards. 827 828config IT8712F_WDT 829 tristate "IT8712F (Smart Guardian) Watchdog Timer" 830 depends on X86 831 ---help--- 832 This is the driver for the built-in watchdog timer on the IT8712F 833 Super I/0 chipset used on many motherboards. 834 835 If the driver does not work, then make sure that the game port in 836 the BIOS is enabled. 837 838 To compile this driver as a module, choose M here: the 839 module will be called it8712f_wdt. 840 841config IT87_WDT 842 tristate "IT87 Watchdog Timer" 843 depends on X86 844 ---help--- 845 This is the driver for the hardware watchdog on the ITE IT8702, 846 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728 847 Super I/O chips. 848 849 If the driver does not work, then make sure that the game port in 850 the BIOS is enabled. 851 852 This watchdog simply watches your kernel to make sure it doesn't 853 freeze, and if it does, it reboots your computer after a certain 854 amount of time. 855 856 To compile this driver as a module, choose M here: the module will 857 be called it87_wdt. 858 859config HP_WATCHDOG 860 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 861 depends on X86 && PCI 862 help 863 A software monitoring watchdog and NMI sourcing driver. This driver 864 will detect lockups and provide a stack trace. This is a driver that 865 will only load on an HP ProLiant system with a minimum of iLO2 support. 866 To compile this driver as a module, choose M here: the module will be 867 called hpwdt. 868 869config KEMPLD_WDT 870 tristate "Kontron COM Watchdog Timer" 871 depends on MFD_KEMPLD 872 select WATCHDOG_CORE 873 help 874 Support for the PLD watchdog on some Kontron ETX and COMexpress 875 (ETXexpress) modules 876 877 This driver can also be built as a module. If so, the module will be 878 called kempld_wdt. 879 880config HPWDT_NMI_DECODING 881 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 882 depends on HP_WATCHDOG 883 default y 884 help 885 When an NMI occurs this feature will make the necessary BIOS calls to 886 log the cause of the NMI. 887 888config SC1200_WDT 889 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 890 depends on X86 891 help 892 This is a driver for National Semiconductor PC87307/PC97307 hardware 893 watchdog cards as found on the SC1200. This watchdog is mainly used 894 for power management purposes and can be used to power down the device 895 during inactivity periods (includes interrupt activity monitoring). 896 897 To compile this driver as a module, choose M here: the 898 module will be called sc1200wdt. 899 900 Most people will say N. 901 902config SCx200_WDT 903 tristate "National Semiconductor SCx200 Watchdog" 904 depends on SCx200 && PCI 905 help 906 Enable the built-in watchdog timer support on the National 907 Semiconductor SCx200 processors. 908 909 If compiled as a module, it will be called scx200_wdt. 910 911config PC87413_WDT 912 tristate "NS PC87413 watchdog" 913 depends on X86 914 ---help--- 915 This is the driver for the hardware watchdog on the PC87413 chipset 916 This watchdog simply watches your kernel to make sure it doesn't 917 freeze, and if it does, it reboots your computer after a certain 918 amount of time. 919 920 To compile this driver as a module, choose M here: the 921 module will be called pc87413_wdt. 922 923 Most people will say N. 924 925config NV_TCO 926 tristate "nVidia TCO Timer/Watchdog" 927 depends on X86 && PCI 928 ---help--- 929 Hardware driver for the TCO timer built into the nVidia Hub family 930 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 931 watchdog timer that will reboot the machine after its second 932 expiration. The expiration time can be configured with the 933 "heartbeat" parameter. 934 935 On some motherboards the driver may fail to reset the chipset's 936 NO_REBOOT flag which prevents the watchdog from rebooting the 937 machine. If this is the case you will get a kernel message like 938 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 939 940 To compile this driver as a module, choose M here: the 941 module will be called nv_tco. 942 943config RDC321X_WDT 944 tristate "RDC R-321x SoC watchdog" 945 depends on X86_RDC321X 946 help 947 This is the driver for the built in hardware watchdog 948 in the RDC R-321x SoC. 949 950 To compile this driver as a module, choose M here: the 951 module will be called rdc321x_wdt. 952 953config 60XX_WDT 954 tristate "SBC-60XX Watchdog Timer" 955 depends on X86 956 help 957 This driver can be used with the watchdog timer found on some 958 single board computers, namely the 6010 PII based computer. 959 It may well work with other cards. It reads port 0x443 to enable 960 and re-set the watchdog timer, and reads port 0x45 to disable 961 the watchdog. If you have a card that behave in similar ways, 962 you can probably make this driver work with your card as well. 963 964 You can compile this driver directly into the kernel, or use 965 it as a module. The module will be called sbc60xxwdt. 966 967config SBC8360_WDT 968 tristate "SBC8360 Watchdog Timer" 969 depends on X86_32 970 ---help--- 971 972 This is the driver for the hardware watchdog on the SBC8360 Single 973 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 974 975 To compile this driver as a module, choose M here: the 976 module will be called sbc8360. 977 978 Most people will say N. 979 980config SBC7240_WDT 981 tristate "SBC Nano 7240 Watchdog Timer" 982 depends on X86_32 && !UML 983 ---help--- 984 This is the driver for the hardware watchdog found on the IEI 985 single board computers EPIC Nano 7240 (and likely others). This 986 watchdog simply watches your kernel to make sure it doesn't freeze, 987 and if it does, it reboots your computer after a certain amount of 988 time. 989 990 To compile this driver as a module, choose M here: the 991 module will be called sbc7240_wdt. 992 993config CPU5_WDT 994 tristate "SMA CPU5 Watchdog" 995 depends on X86 996 ---help--- 997 TBD. 998 To compile this driver as a module, choose M here: the 999 module will be called cpu5wdt. 1000 1001config SMSC_SCH311X_WDT 1002 tristate "SMSC SCH311X Watchdog Timer" 1003 depends on X86 1004 ---help--- 1005 This is the driver for the hardware watchdog timer on the 1006 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1007 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1008 serial ports). 1009 1010 To compile this driver as a module, choose M here: the 1011 module will be called sch311x_wdt. 1012 1013config SMSC37B787_WDT 1014 tristate "Winbond SMsC37B787 Watchdog Timer" 1015 depends on X86 1016 ---help--- 1017 This is the driver for the hardware watchdog component on the 1018 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1019 from Vision Systems and maybe others. 1020 1021 This watchdog simply watches your kernel to make sure it doesn't 1022 freeze, and if it does, it reboots your computer after a certain 1023 amount of time. 1024 1025 Usually a userspace daemon will notify the kernel WDT driver that 1026 userspace is still alive, at regular intervals. 1027 1028 To compile this driver as a module, choose M here: the 1029 module will be called smsc37b787_wdt. 1030 1031 Most people will say N. 1032 1033config VIA_WDT 1034 tristate "VIA Watchdog Timer" 1035 depends on X86 && PCI 1036 select WATCHDOG_CORE 1037 ---help--- 1038 This is the driver for the hardware watchdog timer on VIA 1039 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1040 1041 To compile this driver as a module, choose M here; the module 1042 will be called via_wdt. 1043 1044 Most people will say N. 1045 1046config W83627HF_WDT 1047 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1048 depends on X86 1049 select WATCHDOG_CORE 1050 ---help--- 1051 This is the driver for the hardware watchdog on the following 1052 Super I/O chips. 1053 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1054 W83637HF 1055 W83667HG/HG-B 1056 W83687THF 1057 W83697HF 1058 W83697UG 1059 NCT6775 1060 NCT6776 1061 NCT6779 1062 NCT6791 1063 NCT6792 1064 1065 This watchdog simply watches your kernel to make sure it doesn't 1066 freeze, and if it does, it reboots your computer after a certain 1067 amount of time. 1068 1069 To compile this driver as a module, choose M here: the 1070 module will be called w83627hf_wdt. 1071 1072 Most people will say N. 1073 1074config W83877F_WDT 1075 tristate "W83877F (EMACS) Watchdog Timer" 1076 depends on X86 1077 ---help--- 1078 This is the driver for the hardware watchdog on the W83877F chipset 1079 as used in EMACS PC-104 motherboards (and likely others). This 1080 watchdog simply watches your kernel to make sure it doesn't freeze, 1081 and if it does, it reboots your computer after a certain amount of 1082 time. 1083 1084 To compile this driver as a module, choose M here: the 1085 module will be called w83877f_wdt. 1086 1087 Most people will say N. 1088 1089config W83977F_WDT 1090 tristate "W83977F (PCM-5335) Watchdog Timer" 1091 depends on X86 1092 ---help--- 1093 This is the driver for the hardware watchdog on the W83977F I/O chip 1094 as used in AAEON's PCM-5335 SBC (and likely others). This 1095 watchdog simply watches your kernel to make sure it doesn't freeze, 1096 and if it does, it reboots your computer after a certain amount of 1097 time. 1098 1099 To compile this driver as a module, choose M here: the 1100 module will be called w83977f_wdt. 1101 1102config MACHZ_WDT 1103 tristate "ZF MachZ Watchdog" 1104 depends on X86 1105 ---help--- 1106 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1107 N. This is the driver for the watchdog timer built-in on that 1108 processor using ZF-Logic interface. This watchdog simply watches 1109 your kernel to make sure it doesn't freeze, and if it does, it 1110 reboots your computer after a certain amount of time. 1111 1112 To compile this driver as a module, choose M here: the 1113 module will be called machzwd. 1114 1115config SBC_EPX_C3_WATCHDOG 1116 tristate "Winsystems SBC EPX-C3 watchdog" 1117 depends on X86 1118 ---help--- 1119 This is the driver for the built-in watchdog timer on the EPX-C3 1120 Single-board computer made by Winsystems, Inc. 1121 1122 *Note*: This hardware watchdog is not probeable and thus there 1123 is no way to know if writing to its IO address will corrupt 1124 your system or have any real effect. The only way to be sure 1125 that this driver does what you want is to make sure you 1126 are running it on an EPX-C3 from Winsystems with the watchdog 1127 timer at IO address 0x1ee and 0x1ef. It will write to both those 1128 IO ports. Basically, the assumption is made that if you compile 1129 this driver into your kernel and/or load it as a module, that you 1130 know what you are doing and that you are in fact running on an 1131 EPX-C3 board! 1132 1133 To compile this driver as a module, choose M here: the 1134 module will be called sbc_epx_c3. 1135 1136# M32R Architecture 1137 1138# M68K Architecture 1139 1140config M54xx_WATCHDOG 1141 tristate "MCF54xx watchdog support" 1142 depends on M548x 1143 help 1144 To compile this driver as a module, choose M here: the 1145 module will be called m54xx_wdt. 1146 1147# MicroBlaze Architecture 1148 1149# MIPS Architecture 1150 1151config ATH79_WDT 1152 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1153 depends on ATH79 1154 help 1155 Hardware driver for the built-in watchdog timer on the Atheros 1156 AR71XX/AR724X/AR913X SoCs. 1157 1158config BCM47XX_WDT 1159 tristate "Broadcom BCM47xx Watchdog Timer" 1160 depends on BCM47XX || ARCH_BCM_5301X 1161 select WATCHDOG_CORE 1162 help 1163 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1164 1165config RC32434_WDT 1166 tristate "IDT RC32434 SoC Watchdog Timer" 1167 depends on MIKROTIK_RB532 1168 help 1169 Hardware driver for the IDT RC32434 SoC built-in 1170 watchdog timer. 1171 1172 To compile this driver as a module, choose M here: the 1173 module will be called rc32434_wdt. 1174 1175config INDYDOG 1176 tristate "Indy/I2 Hardware Watchdog" 1177 depends on SGI_HAS_INDYDOG 1178 help 1179 Hardware driver for the Indy's/I2's watchdog. This is a 1180 watchdog timer that will reboot the machine after a 60 second 1181 timer expired and no process has written to /dev/watchdog during 1182 that time. 1183 1184config JZ4740_WDT 1185 tristate "Ingenic jz4740 SoC hardware watchdog" 1186 depends on MACH_JZ4740 1187 select WATCHDOG_CORE 1188 help 1189 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1190 1191config WDT_MTX1 1192 tristate "MTX-1 Hardware Watchdog" 1193 depends on MIPS_MTX1 1194 help 1195 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1196 will reboot the machine after a 100 seconds timer expired. 1197 1198config PNX833X_WDT 1199 tristate "PNX833x Hardware Watchdog" 1200 depends on SOC_PNX8335 1201 help 1202 Hardware driver for the PNX833x's watchdog. This is a 1203 watchdog timer that will reboot the machine after a programmable 1204 timer has expired and no process has written to /dev/watchdog during 1205 that time. 1206 1207config SIBYTE_WDOG 1208 tristate "Sibyte SoC hardware watchdog" 1209 depends on CPU_SB1 1210 help 1211 Watchdog driver for the built in watchdog hardware in Sibyte 1212 SoC processors. There are apparently two watchdog timers 1213 on such processors; this driver supports only the first one, 1214 because currently Linux only supports exporting one watchdog 1215 to userspace. 1216 1217 To compile this driver as a loadable module, choose M here. 1218 The module will be called sb_wdog. 1219 1220config AR7_WDT 1221 tristate "TI AR7 Watchdog Timer" 1222 depends on AR7 1223 help 1224 Hardware driver for the TI AR7 Watchdog Timer. 1225 1226config TXX9_WDT 1227 tristate "Toshiba TXx9 Watchdog Timer" 1228 depends on CPU_TX39XX || CPU_TX49XX 1229 select WATCHDOG_CORE 1230 help 1231 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1232 1233config OCTEON_WDT 1234 tristate "Cavium OCTEON SOC family Watchdog Timer" 1235 depends on CAVIUM_OCTEON_SOC 1236 default y 1237 select WATCHDOG_CORE 1238 select EXPORT_UASM if OCTEON_WDT = m 1239 help 1240 Hardware driver for OCTEON's on chip watchdog timer. 1241 Enables the watchdog for all cores running Linux. It 1242 installs a NMI handler and pokes the watchdog based on an 1243 interrupt. On first expiration of the watchdog, the 1244 interrupt handler pokes it. The second expiration causes an 1245 NMI that prints a message. The third expiration causes a 1246 global soft reset. 1247 1248 When userspace has /dev/watchdog open, no poking is done 1249 from the first interrupt, it is then only poked when the 1250 device is written. 1251 1252config BCM63XX_WDT 1253 tristate "Broadcom BCM63xx hardware watchdog" 1254 depends on BCM63XX 1255 help 1256 Watchdog driver for the built in watchdog hardware in Broadcom 1257 BCM63xx SoC. 1258 1259 To compile this driver as a loadable module, choose M here. 1260 The module will be called bcm63xx_wdt. 1261 1262config BCM2835_WDT 1263 tristate "Broadcom BCM2835 hardware watchdog" 1264 depends on ARCH_BCM2835 1265 select WATCHDOG_CORE 1266 help 1267 Watchdog driver for the built in watchdog hardware in Broadcom 1268 BCM2835 SoC. 1269 1270 To compile this driver as a loadable module, choose M here. 1271 The module will be called bcm2835_wdt. 1272 1273config BCM_KONA_WDT 1274 tristate "BCM Kona Watchdog" 1275 depends on ARCH_BCM_MOBILE 1276 select WATCHDOG_CORE 1277 help 1278 Support for the watchdog timer on the following Broadcom BCM281xx 1279 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1280 BCM28155 variants. 1281 1282 Say 'Y' or 'M' here to enable the driver. The module will be called 1283 bcm_kona_wdt. 1284 1285config BCM_KONA_WDT_DEBUG 1286 bool "DEBUGFS support for BCM Kona Watchdog" 1287 depends on BCM_KONA_WDT 1288 help 1289 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1290 access to the driver's internal data structures as well as watchdog 1291 timer hardware registres. 1292 1293 If in doubt, say 'N'. 1294 1295config IMGPDC_WDT 1296 tristate "Imagination Technologies PDC Watchdog Timer" 1297 depends on HAS_IOMEM 1298 depends on METAG || MIPS || COMPILE_TEST 1299 help 1300 Driver for Imagination Technologies PowerDown Controller 1301 Watchdog Timer. 1302 1303 To compile this driver as a loadable module, choose M here. 1304 The module will be called imgpdc_wdt. 1305 1306config LANTIQ_WDT 1307 tristate "Lantiq SoC watchdog" 1308 depends on LANTIQ 1309 help 1310 Hardware driver for the Lantiq SoC Watchdog Timer. 1311 1312config RALINK_WDT 1313 tristate "Ralink SoC watchdog" 1314 select WATCHDOG_CORE 1315 depends on RALINK 1316 help 1317 Hardware driver for the Ralink SoC Watchdog Timer. 1318 1319# PARISC Architecture 1320 1321# POWERPC Architecture 1322 1323config GEF_WDT 1324 tristate "GE Watchdog Timer" 1325 depends on GE_FPGA 1326 ---help--- 1327 Watchdog timer found in a number of GE single board computers. 1328 1329config MPC5200_WDT 1330 bool "MPC52xx Watchdog Timer" 1331 depends on PPC_MPC52xx 1332 help 1333 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1334 1335config 8xxx_WDT 1336 tristate "MPC8xxx Platform Watchdog Timer" 1337 depends on PPC_8xx || PPC_83xx || PPC_86xx 1338 select WATCHDOG_CORE 1339 help 1340 This driver is for a SoC level watchdog that exists on some 1341 Freescale PowerPC processors. So far this driver supports: 1342 - MPC8xx watchdogs 1343 - MPC83xx watchdogs 1344 - MPC86xx watchdogs 1345 1346 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1347 1348config MV64X60_WDT 1349 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1350 depends on MV64X60 1351 1352config PIKA_WDT 1353 tristate "PIKA FPGA Watchdog" 1354 depends on WARP 1355 default y 1356 help 1357 This enables the watchdog in the PIKA FPGA. Currently used on 1358 the Warp platform. 1359 1360config BOOKE_WDT 1361 tristate "PowerPC Book-E Watchdog Timer" 1362 depends on BOOKE || 4xx 1363 select WATCHDOG_CORE 1364 ---help--- 1365 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1366 MPC85xx SOCs and the IBM PowerPC 440. 1367 1368 Please see Documentation/watchdog/watchdog-api.txt for 1369 more information. 1370 1371config BOOKE_WDT_DEFAULT_TIMEOUT 1372 int "PowerPC Book-E Watchdog Timer Default Timeout" 1373 depends on BOOKE_WDT 1374 default 38 if PPC_FSL_BOOK3E 1375 range 0 63 if PPC_FSL_BOOK3E 1376 default 3 if !PPC_FSL_BOOK3E 1377 range 0 3 if !PPC_FSL_BOOK3E 1378 help 1379 Select the default watchdog timer period to be used by the PowerPC 1380 Book-E watchdog driver. A watchdog "event" occurs when the bit 1381 position represented by this number transitions from zero to one. 1382 1383 For Freescale Book-E processors, this is a number between 0 and 63. 1384 For other Book-E processors, this is a number between 0 and 3. 1385 1386 The value can be overridden by the wdt_period command-line parameter. 1387 1388config MEN_A21_WDT 1389 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1390 select WATCHDOG_CORE 1391 depends on GPIOLIB || COMPILE_TEST 1392 help 1393 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1394 1395 The driver can also be built as a module. If so, the module will be 1396 called mena21_wdt. 1397 1398 If unsure select N here. 1399 1400# PPC64 Architecture 1401 1402config WATCHDOG_RTAS 1403 tristate "RTAS watchdog" 1404 depends on PPC_RTAS 1405 help 1406 This driver adds watchdog support for the RTAS watchdog. 1407 1408 To compile this driver as a module, choose M here. The module 1409 will be called wdrtas. 1410 1411# S390 Architecture 1412 1413config DIAG288_WATCHDOG 1414 tristate "System z diag288 Watchdog" 1415 depends on S390 1416 select WATCHDOG_CORE 1417 help 1418 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1419 provide a virtual watchdog timer to their guest that cause a 1420 user define Control Program command to be executed after a 1421 timeout. 1422 LPAR provides a very similar interface. This driver handles 1423 both. 1424 1425 To compile this driver as a module, choose M here. The module 1426 will be called diag288_wdt. 1427 1428# SUPERH (sh + sh64) Architecture 1429 1430config SH_WDT 1431 tristate "SuperH Watchdog" 1432 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1433 select WATCHDOG_CORE 1434 help 1435 This driver adds watchdog support for the integrated watchdog in the 1436 SuperH processors. If you have one of these processors and wish 1437 to have watchdog support enabled, say Y, otherwise say N. 1438 1439 As a side note, saying Y here will automatically boost HZ to 1000 1440 so that the timer has a chance to clear the overflow counter. On 1441 slower systems (such as the SH-2 and SH-3) this will likely yield 1442 some performance issues. As such, the WDT should be avoided here 1443 unless it is absolutely necessary. 1444 1445 To compile this driver as a module, choose M here: the 1446 module will be called shwdt. 1447 1448# SPARC Architecture 1449 1450# SPARC64 Architecture 1451 1452config WATCHDOG_CP1XXX 1453 tristate "CP1XXX Hardware Watchdog support" 1454 depends on SPARC64 && PCI 1455 ---help--- 1456 This is the driver for the hardware watchdog timers present on 1457 Sun Microsystems CompactPCI models CP1400 and CP1500. 1458 1459 To compile this driver as a module, choose M here: the 1460 module will be called cpwatchdog. 1461 1462 If you do not have a CompactPCI model CP1400 or CP1500, or 1463 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1464 you should say N to this option. 1465 1466config WATCHDOG_RIO 1467 tristate "RIO Hardware Watchdog support" 1468 depends on SPARC64 && PCI 1469 help 1470 Say Y here to support the hardware watchdog capability on Sun RIO 1471 machines. The watchdog timeout period is normally one minute but 1472 can be changed with a boot-time parameter. 1473 1474# XTENSA Architecture 1475 1476# Xen Architecture 1477 1478config XEN_WDT 1479 tristate "Xen Watchdog support" 1480 depends on XEN 1481 help 1482 Say Y here to support the hypervisor watchdog capability provided 1483 by Xen 4.0 and newer. The watchdog timeout period is normally one 1484 minute but can be changed with a boot-time parameter. 1485 1486config UML_WATCHDOG 1487 tristate "UML watchdog" 1488 depends on UML 1489 1490# 1491# ISA-based Watchdog Cards 1492# 1493 1494comment "ISA-based Watchdog Cards" 1495 depends on ISA 1496 1497config PCWATCHDOG 1498 tristate "Berkshire Products ISA-PC Watchdog" 1499 depends on ISA 1500 ---help--- 1501 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1502 This card simply watches your kernel to make sure it doesn't freeze, 1503 and if it does, it reboots your computer after a certain amount of 1504 time. This driver is like the WDT501 driver but for different 1505 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1506 watchdog cards can be ordered from <http://www.berkprod.com/>. 1507 1508 To compile this driver as a module, choose M here: the 1509 module will be called pcwd. 1510 1511 Most people will say N. 1512 1513config MIXCOMWD 1514 tristate "Mixcom Watchdog" 1515 depends on ISA 1516 ---help--- 1517 This is a driver for the Mixcom hardware watchdog cards. This 1518 watchdog simply watches your kernel to make sure it doesn't freeze, 1519 and if it does, it reboots your computer after a certain amount of 1520 time. 1521 1522 To compile this driver as a module, choose M here: the 1523 module will be called mixcomwd. 1524 1525 Most people will say N. 1526 1527config WDT 1528 tristate "WDT Watchdog timer" 1529 depends on ISA 1530 ---help--- 1531 If you have a WDT500P or WDT501P watchdog board, say Y here, 1532 otherwise N. It is not possible to probe for this board, which means 1533 that you have to inform the kernel about the IO port and IRQ that 1534 is needed (you can do this via the io and irq parameters) 1535 1536 To compile this driver as a module, choose M here: the 1537 module will be called wdt. 1538 1539# 1540# PCI-based Watchdog Cards 1541# 1542 1543comment "PCI-based Watchdog Cards" 1544 depends on PCI 1545 1546config PCIPCWATCHDOG 1547 tristate "Berkshire Products PCI-PC Watchdog" 1548 depends on PCI 1549 ---help--- 1550 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1551 This card simply watches your kernel to make sure it doesn't freeze, 1552 and if it does, it reboots your computer after a certain amount of 1553 time. The card can also monitor the internal temperature of the PC. 1554 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1555 1556 To compile this driver as a module, choose M here: the 1557 module will be called pcwd_pci. 1558 1559 Most people will say N. 1560 1561config WDTPCI 1562 tristate "PCI-WDT500/501 Watchdog timer" 1563 depends on PCI 1564 ---help--- 1565 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1566 1567 If you have a PCI-WDT501 watchdog board then you can enable the 1568 temperature sensor by setting the type parameter to 501. 1569 1570 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1571 can do this via the tachometer parameter. Only do this if you have a 1572 fan tachometer actually set up. 1573 1574 To compile this driver as a module, choose M here: the 1575 module will be called wdt_pci. 1576 1577# 1578# USB-based Watchdog Cards 1579# 1580 1581comment "USB-based Watchdog Cards" 1582 depends on USB 1583 1584config USBPCWATCHDOG 1585 tristate "Berkshire Products USB-PC Watchdog" 1586 depends on USB 1587 ---help--- 1588 This is the driver for the Berkshire Products USB-PC Watchdog card. 1589 This card simply watches your kernel to make sure it doesn't freeze, 1590 and if it does, it reboots your computer after a certain amount of 1591 time. The card can also monitor the internal temperature of the PC. 1592 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1593 1594 To compile this driver as a module, choose M here: the 1595 module will be called pcwd_usb. 1596 1597 Most people will say N. 1598 1599endif # WATCHDOG 1600