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 801 ---help--- 802 Hardware driver for the intel TCO timer based watchdog devices. 803 These drivers are included in the Intel 82801 I/O Controller 804 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 805 controller hub. 806 807 The TCO (Total Cost of Ownership) timer is a watchdog timer 808 that will reboot the machine after its second expiration. The 809 expiration time can be configured with the "heartbeat" parameter. 810 811 On some motherboards the driver may fail to reset the chipset's 812 NO_REBOOT flag which prevents the watchdog from rebooting the 813 machine. If this is the case you will get a kernel message like 814 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 815 816 To compile this driver as a module, choose M here: the 817 module will be called iTCO_wdt. 818 819config ITCO_VENDOR_SUPPORT 820 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 821 depends on ITCO_WDT 822 ---help--- 823 Add vendor specific support to the intel TCO timer based watchdog 824 devices. At this moment we only have additional support for some 825 SuperMicro Inc. motherboards. 826 827config IT8712F_WDT 828 tristate "IT8712F (Smart Guardian) Watchdog Timer" 829 depends on X86 830 ---help--- 831 This is the driver for the built-in watchdog timer on the IT8712F 832 Super I/0 chipset used on many motherboards. 833 834 If the driver does not work, then make sure that the game port in 835 the BIOS is enabled. 836 837 To compile this driver as a module, choose M here: the 838 module will be called it8712f_wdt. 839 840config IT87_WDT 841 tristate "IT87 Watchdog Timer" 842 depends on X86 843 ---help--- 844 This is the driver for the hardware watchdog on the ITE IT8702, 845 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728 846 Super I/O chips. 847 848 If the driver does not work, then make sure that the game port in 849 the BIOS is enabled. 850 851 This watchdog simply watches your kernel to make sure it doesn't 852 freeze, and if it does, it reboots your computer after a certain 853 amount of time. 854 855 To compile this driver as a module, choose M here: the module will 856 be called it87_wdt. 857 858config HP_WATCHDOG 859 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 860 depends on X86 && PCI 861 help 862 A software monitoring watchdog and NMI sourcing driver. This driver 863 will detect lockups and provide a stack trace. This is a driver that 864 will only load on an HP ProLiant system with a minimum of iLO2 support. 865 To compile this driver as a module, choose M here: the module will be 866 called hpwdt. 867 868config KEMPLD_WDT 869 tristate "Kontron COM Watchdog Timer" 870 depends on MFD_KEMPLD 871 select WATCHDOG_CORE 872 help 873 Support for the PLD watchdog on some Kontron ETX and COMexpress 874 (ETXexpress) modules 875 876 This driver can also be built as a module. If so, the module will be 877 called kempld_wdt. 878 879config HPWDT_NMI_DECODING 880 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 881 depends on HP_WATCHDOG 882 default y 883 help 884 When an NMI occurs this feature will make the necessary BIOS calls to 885 log the cause of the NMI. 886 887config SC1200_WDT 888 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 889 depends on X86 890 help 891 This is a driver for National Semiconductor PC87307/PC97307 hardware 892 watchdog cards as found on the SC1200. This watchdog is mainly used 893 for power management purposes and can be used to power down the device 894 during inactivity periods (includes interrupt activity monitoring). 895 896 To compile this driver as a module, choose M here: the 897 module will be called sc1200wdt. 898 899 Most people will say N. 900 901config SCx200_WDT 902 tristate "National Semiconductor SCx200 Watchdog" 903 depends on SCx200 && PCI 904 help 905 Enable the built-in watchdog timer support on the National 906 Semiconductor SCx200 processors. 907 908 If compiled as a module, it will be called scx200_wdt. 909 910config PC87413_WDT 911 tristate "NS PC87413 watchdog" 912 depends on X86 913 ---help--- 914 This is the driver for the hardware watchdog on the PC87413 chipset 915 This watchdog simply watches your kernel to make sure it doesn't 916 freeze, and if it does, it reboots your computer after a certain 917 amount of time. 918 919 To compile this driver as a module, choose M here: the 920 module will be called pc87413_wdt. 921 922 Most people will say N. 923 924config NV_TCO 925 tristate "nVidia TCO Timer/Watchdog" 926 depends on X86 && PCI 927 ---help--- 928 Hardware driver for the TCO timer built into the nVidia Hub family 929 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 930 watchdog timer that will reboot the machine after its second 931 expiration. The expiration time can be configured with the 932 "heartbeat" parameter. 933 934 On some motherboards the driver may fail to reset the chipset's 935 NO_REBOOT flag which prevents the watchdog from rebooting the 936 machine. If this is the case you will get a kernel message like 937 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 938 939 To compile this driver as a module, choose M here: the 940 module will be called nv_tco. 941 942config RDC321X_WDT 943 tristate "RDC R-321x SoC watchdog" 944 depends on X86_RDC321X 945 help 946 This is the driver for the built in hardware watchdog 947 in the RDC R-321x SoC. 948 949 To compile this driver as a module, choose M here: the 950 module will be called rdc321x_wdt. 951 952config 60XX_WDT 953 tristate "SBC-60XX Watchdog Timer" 954 depends on X86 955 help 956 This driver can be used with the watchdog timer found on some 957 single board computers, namely the 6010 PII based computer. 958 It may well work with other cards. It reads port 0x443 to enable 959 and re-set the watchdog timer, and reads port 0x45 to disable 960 the watchdog. If you have a card that behave in similar ways, 961 you can probably make this driver work with your card as well. 962 963 You can compile this driver directly into the kernel, or use 964 it as a module. The module will be called sbc60xxwdt. 965 966config SBC8360_WDT 967 tristate "SBC8360 Watchdog Timer" 968 depends on X86_32 969 ---help--- 970 971 This is the driver for the hardware watchdog on the SBC8360 Single 972 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 973 974 To compile this driver as a module, choose M here: the 975 module will be called sbc8360. 976 977 Most people will say N. 978 979config SBC7240_WDT 980 tristate "SBC Nano 7240 Watchdog Timer" 981 depends on X86_32 && !UML 982 ---help--- 983 This is the driver for the hardware watchdog found on the IEI 984 single board computers EPIC Nano 7240 (and likely others). This 985 watchdog simply watches your kernel to make sure it doesn't freeze, 986 and if it does, it reboots your computer after a certain amount of 987 time. 988 989 To compile this driver as a module, choose M here: the 990 module will be called sbc7240_wdt. 991 992config CPU5_WDT 993 tristate "SMA CPU5 Watchdog" 994 depends on X86 995 ---help--- 996 TBD. 997 To compile this driver as a module, choose M here: the 998 module will be called cpu5wdt. 999 1000config SMSC_SCH311X_WDT 1001 tristate "SMSC SCH311X Watchdog Timer" 1002 depends on X86 1003 ---help--- 1004 This is the driver for the hardware watchdog timer on the 1005 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1006 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1007 serial ports). 1008 1009 To compile this driver as a module, choose M here: the 1010 module will be called sch311x_wdt. 1011 1012config SMSC37B787_WDT 1013 tristate "Winbond SMsC37B787 Watchdog Timer" 1014 depends on X86 1015 ---help--- 1016 This is the driver for the hardware watchdog component on the 1017 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1018 from Vision Systems and maybe others. 1019 1020 This watchdog simply watches your kernel to make sure it doesn't 1021 freeze, and if it does, it reboots your computer after a certain 1022 amount of time. 1023 1024 Usually a userspace daemon will notify the kernel WDT driver that 1025 userspace is still alive, at regular intervals. 1026 1027 To compile this driver as a module, choose M here: the 1028 module will be called smsc37b787_wdt. 1029 1030 Most people will say N. 1031 1032config VIA_WDT 1033 tristate "VIA Watchdog Timer" 1034 depends on X86 && PCI 1035 select WATCHDOG_CORE 1036 ---help--- 1037 This is the driver for the hardware watchdog timer on VIA 1038 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1039 1040 To compile this driver as a module, choose M here; the module 1041 will be called via_wdt. 1042 1043 Most people will say N. 1044 1045config W83627HF_WDT 1046 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1047 depends on X86 1048 select WATCHDOG_CORE 1049 ---help--- 1050 This is the driver for the hardware watchdog on the following 1051 Super I/O chips. 1052 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1053 W83637HF 1054 W83667HG/HG-B 1055 W83687THF 1056 W83697HF 1057 W83697UG 1058 NCT6775 1059 NCT6776 1060 NCT6779 1061 NCT6791 1062 NCT6792 1063 1064 This watchdog simply watches your kernel to make sure it doesn't 1065 freeze, and if it does, it reboots your computer after a certain 1066 amount of time. 1067 1068 To compile this driver as a module, choose M here: the 1069 module will be called w83627hf_wdt. 1070 1071 Most people will say N. 1072 1073config W83877F_WDT 1074 tristate "W83877F (EMACS) Watchdog Timer" 1075 depends on X86 1076 ---help--- 1077 This is the driver for the hardware watchdog on the W83877F chipset 1078 as used in EMACS PC-104 motherboards (and likely others). This 1079 watchdog simply watches your kernel to make sure it doesn't freeze, 1080 and if it does, it reboots your computer after a certain amount of 1081 time. 1082 1083 To compile this driver as a module, choose M here: the 1084 module will be called w83877f_wdt. 1085 1086 Most people will say N. 1087 1088config W83977F_WDT 1089 tristate "W83977F (PCM-5335) Watchdog Timer" 1090 depends on X86 1091 ---help--- 1092 This is the driver for the hardware watchdog on the W83977F I/O chip 1093 as used in AAEON's PCM-5335 SBC (and likely others). This 1094 watchdog simply watches your kernel to make sure it doesn't freeze, 1095 and if it does, it reboots your computer after a certain amount of 1096 time. 1097 1098 To compile this driver as a module, choose M here: the 1099 module will be called w83977f_wdt. 1100 1101config MACHZ_WDT 1102 tristate "ZF MachZ Watchdog" 1103 depends on X86 1104 ---help--- 1105 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1106 N. This is the driver for the watchdog timer built-in on that 1107 processor using ZF-Logic interface. This watchdog simply watches 1108 your kernel to make sure it doesn't freeze, and if it does, it 1109 reboots your computer after a certain amount of time. 1110 1111 To compile this driver as a module, choose M here: the 1112 module will be called machzwd. 1113 1114config SBC_EPX_C3_WATCHDOG 1115 tristate "Winsystems SBC EPX-C3 watchdog" 1116 depends on X86 1117 ---help--- 1118 This is the driver for the built-in watchdog timer on the EPX-C3 1119 Single-board computer made by Winsystems, Inc. 1120 1121 *Note*: This hardware watchdog is not probeable and thus there 1122 is no way to know if writing to its IO address will corrupt 1123 your system or have any real effect. The only way to be sure 1124 that this driver does what you want is to make sure you 1125 are running it on an EPX-C3 from Winsystems with the watchdog 1126 timer at IO address 0x1ee and 0x1ef. It will write to both those 1127 IO ports. Basically, the assumption is made that if you compile 1128 this driver into your kernel and/or load it as a module, that you 1129 know what you are doing and that you are in fact running on an 1130 EPX-C3 board! 1131 1132 To compile this driver as a module, choose M here: the 1133 module will be called sbc_epx_c3. 1134 1135# M32R Architecture 1136 1137# M68K Architecture 1138 1139config M54xx_WATCHDOG 1140 tristate "MCF54xx watchdog support" 1141 depends on M548x 1142 help 1143 To compile this driver as a module, choose M here: the 1144 module will be called m54xx_wdt. 1145 1146# MicroBlaze Architecture 1147 1148# MIPS Architecture 1149 1150config ATH79_WDT 1151 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1152 depends on ATH79 1153 help 1154 Hardware driver for the built-in watchdog timer on the Atheros 1155 AR71XX/AR724X/AR913X SoCs. 1156 1157config BCM47XX_WDT 1158 tristate "Broadcom BCM47xx Watchdog Timer" 1159 depends on BCM47XX || ARCH_BCM_5301X 1160 select WATCHDOG_CORE 1161 help 1162 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1163 1164config RC32434_WDT 1165 tristate "IDT RC32434 SoC Watchdog Timer" 1166 depends on MIKROTIK_RB532 1167 help 1168 Hardware driver for the IDT RC32434 SoC built-in 1169 watchdog timer. 1170 1171 To compile this driver as a module, choose M here: the 1172 module will be called rc32434_wdt. 1173 1174config INDYDOG 1175 tristate "Indy/I2 Hardware Watchdog" 1176 depends on SGI_HAS_INDYDOG 1177 help 1178 Hardware driver for the Indy's/I2's watchdog. This is a 1179 watchdog timer that will reboot the machine after a 60 second 1180 timer expired and no process has written to /dev/watchdog during 1181 that time. 1182 1183config JZ4740_WDT 1184 tristate "Ingenic jz4740 SoC hardware watchdog" 1185 depends on MACH_JZ4740 1186 select WATCHDOG_CORE 1187 help 1188 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1189 1190config WDT_MTX1 1191 tristate "MTX-1 Hardware Watchdog" 1192 depends on MIPS_MTX1 1193 help 1194 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1195 will reboot the machine after a 100 seconds timer expired. 1196 1197config PNX833X_WDT 1198 tristate "PNX833x Hardware Watchdog" 1199 depends on SOC_PNX8335 1200 help 1201 Hardware driver for the PNX833x's watchdog. This is a 1202 watchdog timer that will reboot the machine after a programmable 1203 timer has expired and no process has written to /dev/watchdog during 1204 that time. 1205 1206config SIBYTE_WDOG 1207 tristate "Sibyte SoC hardware watchdog" 1208 depends on CPU_SB1 1209 help 1210 Watchdog driver for the built in watchdog hardware in Sibyte 1211 SoC processors. There are apparently two watchdog timers 1212 on such processors; this driver supports only the first one, 1213 because currently Linux only supports exporting one watchdog 1214 to userspace. 1215 1216 To compile this driver as a loadable module, choose M here. 1217 The module will be called sb_wdog. 1218 1219config AR7_WDT 1220 tristate "TI AR7 Watchdog Timer" 1221 depends on AR7 1222 help 1223 Hardware driver for the TI AR7 Watchdog Timer. 1224 1225config TXX9_WDT 1226 tristate "Toshiba TXx9 Watchdog Timer" 1227 depends on CPU_TX39XX || CPU_TX49XX 1228 select WATCHDOG_CORE 1229 help 1230 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1231 1232config OCTEON_WDT 1233 tristate "Cavium OCTEON SOC family Watchdog Timer" 1234 depends on CAVIUM_OCTEON_SOC 1235 default y 1236 select WATCHDOG_CORE 1237 select EXPORT_UASM if OCTEON_WDT = m 1238 help 1239 Hardware driver for OCTEON's on chip watchdog timer. 1240 Enables the watchdog for all cores running Linux. It 1241 installs a NMI handler and pokes the watchdog based on an 1242 interrupt. On first expiration of the watchdog, the 1243 interrupt handler pokes it. The second expiration causes an 1244 NMI that prints a message. The third expiration causes a 1245 global soft reset. 1246 1247 When userspace has /dev/watchdog open, no poking is done 1248 from the first interrupt, it is then only poked when the 1249 device is written. 1250 1251config BCM63XX_WDT 1252 tristate "Broadcom BCM63xx hardware watchdog" 1253 depends on BCM63XX 1254 help 1255 Watchdog driver for the built in watchdog hardware in Broadcom 1256 BCM63xx SoC. 1257 1258 To compile this driver as a loadable module, choose M here. 1259 The module will be called bcm63xx_wdt. 1260 1261config BCM2835_WDT 1262 tristate "Broadcom BCM2835 hardware watchdog" 1263 depends on ARCH_BCM2835 1264 select WATCHDOG_CORE 1265 help 1266 Watchdog driver for the built in watchdog hardware in Broadcom 1267 BCM2835 SoC. 1268 1269 To compile this driver as a loadable module, choose M here. 1270 The module will be called bcm2835_wdt. 1271 1272config BCM_KONA_WDT 1273 tristate "BCM Kona Watchdog" 1274 depends on ARCH_BCM_MOBILE 1275 select WATCHDOG_CORE 1276 help 1277 Support for the watchdog timer on the following Broadcom BCM281xx 1278 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1279 BCM28155 variants. 1280 1281 Say 'Y' or 'M' here to enable the driver. The module will be called 1282 bcm_kona_wdt. 1283 1284config BCM_KONA_WDT_DEBUG 1285 bool "DEBUGFS support for BCM Kona Watchdog" 1286 depends on BCM_KONA_WDT 1287 help 1288 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1289 access to the driver's internal data structures as well as watchdog 1290 timer hardware registres. 1291 1292 If in doubt, say 'N'. 1293 1294config IMGPDC_WDT 1295 tristate "Imagination Technologies PDC Watchdog Timer" 1296 depends on HAS_IOMEM 1297 depends on METAG || MIPS || COMPILE_TEST 1298 help 1299 Driver for Imagination Technologies PowerDown Controller 1300 Watchdog Timer. 1301 1302 To compile this driver as a loadable module, choose M here. 1303 The module will be called imgpdc_wdt. 1304 1305config LANTIQ_WDT 1306 tristate "Lantiq SoC watchdog" 1307 depends on LANTIQ 1308 help 1309 Hardware driver for the Lantiq SoC Watchdog Timer. 1310 1311config RALINK_WDT 1312 tristate "Ralink SoC watchdog" 1313 select WATCHDOG_CORE 1314 depends on RALINK 1315 help 1316 Hardware driver for the Ralink SoC Watchdog Timer. 1317 1318# PARISC Architecture 1319 1320# POWERPC Architecture 1321 1322config GEF_WDT 1323 tristate "GE Watchdog Timer" 1324 depends on GE_FPGA 1325 ---help--- 1326 Watchdog timer found in a number of GE single board computers. 1327 1328config MPC5200_WDT 1329 bool "MPC52xx Watchdog Timer" 1330 depends on PPC_MPC52xx 1331 help 1332 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1333 1334config 8xxx_WDT 1335 tristate "MPC8xxx Platform Watchdog Timer" 1336 depends on PPC_8xx || PPC_83xx || PPC_86xx 1337 select WATCHDOG_CORE 1338 help 1339 This driver is for a SoC level watchdog that exists on some 1340 Freescale PowerPC processors. So far this driver supports: 1341 - MPC8xx watchdogs 1342 - MPC83xx watchdogs 1343 - MPC86xx watchdogs 1344 1345 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1346 1347config MV64X60_WDT 1348 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1349 depends on MV64X60 1350 1351config PIKA_WDT 1352 tristate "PIKA FPGA Watchdog" 1353 depends on WARP 1354 default y 1355 help 1356 This enables the watchdog in the PIKA FPGA. Currently used on 1357 the Warp platform. 1358 1359config BOOKE_WDT 1360 tristate "PowerPC Book-E Watchdog Timer" 1361 depends on BOOKE || 4xx 1362 select WATCHDOG_CORE 1363 ---help--- 1364 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1365 MPC85xx SOCs and the IBM PowerPC 440. 1366 1367 Please see Documentation/watchdog/watchdog-api.txt for 1368 more information. 1369 1370config BOOKE_WDT_DEFAULT_TIMEOUT 1371 int "PowerPC Book-E Watchdog Timer Default Timeout" 1372 depends on BOOKE_WDT 1373 default 38 if PPC_FSL_BOOK3E 1374 range 0 63 if PPC_FSL_BOOK3E 1375 default 3 if !PPC_FSL_BOOK3E 1376 range 0 3 if !PPC_FSL_BOOK3E 1377 help 1378 Select the default watchdog timer period to be used by the PowerPC 1379 Book-E watchdog driver. A watchdog "event" occurs when the bit 1380 position represented by this number transitions from zero to one. 1381 1382 For Freescale Book-E processors, this is a number between 0 and 63. 1383 For other Book-E processors, this is a number between 0 and 3. 1384 1385 The value can be overridden by the wdt_period command-line parameter. 1386 1387config MEN_A21_WDT 1388 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1389 select WATCHDOG_CORE 1390 depends on GPIOLIB || COMPILE_TEST 1391 help 1392 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1393 1394 The driver can also be built as a module. If so, the module will be 1395 called mena21_wdt. 1396 1397 If unsure select N here. 1398 1399# PPC64 Architecture 1400 1401config WATCHDOG_RTAS 1402 tristate "RTAS watchdog" 1403 depends on PPC_RTAS 1404 help 1405 This driver adds watchdog support for the RTAS watchdog. 1406 1407 To compile this driver as a module, choose M here. The module 1408 will be called wdrtas. 1409 1410# S390 Architecture 1411 1412config DIAG288_WATCHDOG 1413 tristate "System z diag288 Watchdog" 1414 depends on S390 1415 select WATCHDOG_CORE 1416 help 1417 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1418 provide a virtual watchdog timer to their guest that cause a 1419 user define Control Program command to be executed after a 1420 timeout. 1421 LPAR provides a very similar interface. This driver handles 1422 both. 1423 1424 To compile this driver as a module, choose M here. The module 1425 will be called diag288_wdt. 1426 1427# SUPERH (sh + sh64) Architecture 1428 1429config SH_WDT 1430 tristate "SuperH Watchdog" 1431 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1432 select WATCHDOG_CORE 1433 help 1434 This driver adds watchdog support for the integrated watchdog in the 1435 SuperH processors. If you have one of these processors and wish 1436 to have watchdog support enabled, say Y, otherwise say N. 1437 1438 As a side note, saying Y here will automatically boost HZ to 1000 1439 so that the timer has a chance to clear the overflow counter. On 1440 slower systems (such as the SH-2 and SH-3) this will likely yield 1441 some performance issues. As such, the WDT should be avoided here 1442 unless it is absolutely necessary. 1443 1444 To compile this driver as a module, choose M here: the 1445 module will be called shwdt. 1446 1447# SPARC Architecture 1448 1449# SPARC64 Architecture 1450 1451config WATCHDOG_CP1XXX 1452 tristate "CP1XXX Hardware Watchdog support" 1453 depends on SPARC64 && PCI 1454 ---help--- 1455 This is the driver for the hardware watchdog timers present on 1456 Sun Microsystems CompactPCI models CP1400 and CP1500. 1457 1458 To compile this driver as a module, choose M here: the 1459 module will be called cpwatchdog. 1460 1461 If you do not have a CompactPCI model CP1400 or CP1500, or 1462 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1463 you should say N to this option. 1464 1465config WATCHDOG_RIO 1466 tristate "RIO Hardware Watchdog support" 1467 depends on SPARC64 && PCI 1468 help 1469 Say Y here to support the hardware watchdog capability on Sun RIO 1470 machines. The watchdog timeout period is normally one minute but 1471 can be changed with a boot-time parameter. 1472 1473# XTENSA Architecture 1474 1475# Xen Architecture 1476 1477config XEN_WDT 1478 tristate "Xen Watchdog support" 1479 depends on XEN 1480 help 1481 Say Y here to support the hypervisor watchdog capability provided 1482 by Xen 4.0 and newer. The watchdog timeout period is normally one 1483 minute but can be changed with a boot-time parameter. 1484 1485config UML_WATCHDOG 1486 tristate "UML watchdog" 1487 depends on UML 1488 1489# 1490# ISA-based Watchdog Cards 1491# 1492 1493comment "ISA-based Watchdog Cards" 1494 depends on ISA 1495 1496config PCWATCHDOG 1497 tristate "Berkshire Products ISA-PC Watchdog" 1498 depends on ISA 1499 ---help--- 1500 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1501 This card simply watches your kernel to make sure it doesn't freeze, 1502 and if it does, it reboots your computer after a certain amount of 1503 time. This driver is like the WDT501 driver but for different 1504 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1505 watchdog cards can be ordered from <http://www.berkprod.com/>. 1506 1507 To compile this driver as a module, choose M here: the 1508 module will be called pcwd. 1509 1510 Most people will say N. 1511 1512config MIXCOMWD 1513 tristate "Mixcom Watchdog" 1514 depends on ISA 1515 ---help--- 1516 This is a driver for the Mixcom hardware watchdog cards. This 1517 watchdog simply watches your kernel to make sure it doesn't freeze, 1518 and if it does, it reboots your computer after a certain amount of 1519 time. 1520 1521 To compile this driver as a module, choose M here: the 1522 module will be called mixcomwd. 1523 1524 Most people will say N. 1525 1526config WDT 1527 tristate "WDT Watchdog timer" 1528 depends on ISA 1529 ---help--- 1530 If you have a WDT500P or WDT501P watchdog board, say Y here, 1531 otherwise N. It is not possible to probe for this board, which means 1532 that you have to inform the kernel about the IO port and IRQ that 1533 is needed (you can do this via the io and irq parameters) 1534 1535 To compile this driver as a module, choose M here: the 1536 module will be called wdt. 1537 1538# 1539# PCI-based Watchdog Cards 1540# 1541 1542comment "PCI-based Watchdog Cards" 1543 depends on PCI 1544 1545config PCIPCWATCHDOG 1546 tristate "Berkshire Products PCI-PC Watchdog" 1547 depends on PCI 1548 ---help--- 1549 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1550 This card simply watches your kernel to make sure it doesn't freeze, 1551 and if it does, it reboots your computer after a certain amount of 1552 time. The card can also monitor the internal temperature of the PC. 1553 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1554 1555 To compile this driver as a module, choose M here: the 1556 module will be called pcwd_pci. 1557 1558 Most people will say N. 1559 1560config WDTPCI 1561 tristate "PCI-WDT500/501 Watchdog timer" 1562 depends on PCI 1563 ---help--- 1564 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1565 1566 If you have a PCI-WDT501 watchdog board then you can enable the 1567 temperature sensor by setting the type parameter to 501. 1568 1569 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1570 can do this via the tachometer parameter. Only do this if you have a 1571 fan tachometer actually set up. 1572 1573 To compile this driver as a module, choose M here: the 1574 module will be called wdt_pci. 1575 1576# 1577# USB-based Watchdog Cards 1578# 1579 1580comment "USB-based Watchdog Cards" 1581 depends on USB 1582 1583config USBPCWATCHDOG 1584 tristate "Berkshire Products USB-PC Watchdog" 1585 depends on USB 1586 ---help--- 1587 This is the driver for the Berkshire Products USB-PC Watchdog card. 1588 This card simply watches your kernel to make sure it doesn't freeze, 1589 and if it does, it reboots your computer after a certain amount of 1590 time. The card can also monitor the internal temperature of the PC. 1591 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1592 1593 To compile this driver as a module, choose M here: the 1594 module will be called pcwd_usb. 1595 1596 Most people will say N. 1597 1598endif # WATCHDOG 1599