1# 2# Watchdog device configuration 3# 4 5menuconfig WATCHDOG 6 bool "Watchdog Timer Support" 7 ---help--- 8 If you say Y here (and to one of the following options) and create a 9 character special file /dev/watchdog with major number 10 and minor 10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 11 subsequently opening the file and then failing to write to it for 12 longer than 1 minute will result in rebooting the machine. This 13 could be useful for a networked machine that needs to come back 14 on-line as fast as possible after a lock-up. There's both a watchdog 15 implementation entirely in software (which can sometimes fail to 16 reboot the machine) and a driver for hardware watchdog boards, which 17 are more robust and can also keep track of the temperature inside 18 your computer. For details, read 19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 20 21 The watchdog is usually used together with the watchdog daemon 22 which is available from 23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 24 also monitor NFS connections and can reboot the machine when the process 25 table is full. 26 27 If unsure, say N. 28 29if WATCHDOG 30 31config WATCHDOG_NOWAYOUT 32 bool "Disable watchdog shutdown on close" 33 help 34 The default watchdog behaviour (which you get if you say N here) is 35 to stop the timer if the process managing it closes the file 36 /dev/watchdog. It's always remotely possible that this process might 37 get killed. If you say Y here, the watchdog cannot be stopped once 38 it has been started. 39 40# 41# General Watchdog drivers 42# 43 44comment "Watchdog Device Drivers" 45 46# Architecture Independent 47 48config SOFT_WATCHDOG 49 tristate "Software watchdog" 50 help 51 A software monitoring watchdog. This will fail to reboot your system 52 from some situations that the hardware watchdog will recover 53 from. Equally it's a lot cheaper to install. 54 55 To compile this driver as a module, choose M here: the 56 module will be called softdog. 57 58config WM831X_WATCHDOG 59 tristate "WM831x watchdog" 60 depends on MFD_WM831X 61 help 62 Support for the watchdog in the WM831x AudioPlus PMICs. When 63 the watchdog triggers the system will be reset. 64 65config WM8350_WATCHDOG 66 tristate "WM8350 watchdog" 67 depends on MFD_WM8350 68 help 69 Support for the watchdog in the WM8350 AudioPlus PMIC. When 70 the watchdog triggers the system will be reset. 71 72# ALPHA Architecture 73 74# ARM Architecture 75 76config AT91RM9200_WATCHDOG 77 tristate "AT91RM9200 watchdog" 78 depends on ARCH_AT91RM9200 79 help 80 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 81 system when the timeout is reached. 82 83config AT91SAM9X_WATCHDOG 84 tristate "AT91SAM9X / AT91CAP9 watchdog" 85 depends on ARCH_AT91 && !ARCH_AT91RM9200 86 help 87 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 88 reboot your system when the timeout is reached. 89 90config 21285_WATCHDOG 91 tristate "DC21285 watchdog" 92 depends on FOOTBRIDGE 93 help 94 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 95 here if you wish to use this. Alternatively say M to compile the 96 driver as a module, which will be called wdt285. 97 98 This driver does not work on all machines. In particular, early CATS 99 boards have hardware problems that will cause the machine to simply 100 lock up if the watchdog fires. 101 102 "If in doubt, leave it out" - say N. 103 104config 977_WATCHDOG 105 tristate "NetWinder WB83C977 watchdog" 106 depends on FOOTBRIDGE && ARCH_NETWINDER 107 help 108 Say Y here to include support for the WB977 watchdog included in 109 NetWinder machines. Alternatively say M to compile the driver as 110 a module, which will be called wdt977. 111 112 Not sure? It's safe to say N. 113 114config IXP2000_WATCHDOG 115 tristate "IXP2000 Watchdog" 116 depends on ARCH_IXP2000 117 help 118 Say Y here if to include support for the watchdog timer 119 in the Intel IXP2000(2400, 2800, 2850) network processors. 120 This driver can be built as a module by choosing M. The module 121 will be called ixp2000_wdt. 122 123 Say N if you are unsure. 124 125config IXP4XX_WATCHDOG 126 tristate "IXP4xx Watchdog" 127 depends on ARCH_IXP4XX 128 help 129 Say Y here if to include support for the watchdog timer 130 in the Intel IXP4xx network processors. This driver can 131 be built as a module by choosing M. The module will 132 be called ixp4xx_wdt. 133 134 Note: The internal IXP4xx watchdog does a soft CPU reset 135 which doesn't reset any peripherals. There are circumstances 136 where the watchdog will fail to reset the board correctly 137 (e.g., if the boot ROM is in an unreadable state). 138 139 Say N if you are unsure. 140 141config KS8695_WATCHDOG 142 tristate "KS8695 watchdog" 143 depends on ARCH_KS8695 144 help 145 Watchdog timer embedded into KS8695 processor. This will reboot your 146 system when the timeout is reached. 147 148config HAVE_S3C2410_WATCHDOG 149 bool 150 help 151 This will include watchdog timer support for Samsung SoCs. If 152 you want to include watchdog support for any machine, kindly 153 select this in the respective mach-XXXX/Kconfig file. 154 155config S3C2410_WATCHDOG 156 tristate "S3C2410 Watchdog" 157 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG 158 help 159 Watchdog timer block in the Samsung SoCs. This will reboot 160 the system when the timer expires with the watchdog enabled. 161 162 The driver is limited by the speed of the system's PCLK 163 signal, so with reasonably fast systems (PCLK around 50-66MHz) 164 then watchdog intervals of over approximately 20seconds are 165 unavailable. 166 167 The driver can be built as a module by choosing M, and will 168 be called s3c2410_wdt 169 170config SA1100_WATCHDOG 171 tristate "SA1100/PXA2xx watchdog" 172 depends on ARCH_SA1100 || ARCH_PXA 173 help 174 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 175 reboot your system when timeout is reached. 176 177 NOTE: once enabled, this timer cannot be disabled. 178 179 To compile this driver as a module, choose M here: the 180 module will be called sa1100_wdt. 181 182config MPCORE_WATCHDOG 183 tristate "MPcore watchdog" 184 depends on HAVE_ARM_TWD 185 help 186 Watchdog timer embedded into the MPcore system. 187 188 To compile this driver as a module, choose M here: the 189 module will be called mpcore_wdt. 190 191config EP93XX_WATCHDOG 192 tristate "EP93xx Watchdog" 193 depends on ARCH_EP93XX 194 help 195 Say Y here if to include support for the watchdog timer 196 embedded in the Cirrus Logic EP93xx family of devices. 197 198 To compile this driver as a module, choose M here: the 199 module will be called ep93xx_wdt. 200 201config OMAP_WATCHDOG 202 tristate "OMAP Watchdog" 203 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 204 help 205 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 206 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 207 208config PNX4008_WATCHDOG 209 tristate "PNX4008 Watchdog" 210 depends on ARCH_PNX4008 211 help 212 Say Y here if to include support for the watchdog timer 213 in the PNX4008 processor. 214 This driver can be built as a module by choosing M. The module 215 will be called pnx4008_wdt. 216 217 Say N if you are unsure. 218 219config IOP_WATCHDOG 220 tristate "IOP Watchdog" 221 depends on PLAT_IOP 222 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 223 help 224 Say Y here if to include support for the watchdog timer 225 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 226 be built as a module by choosing M. The module will 227 be called iop_wdt. 228 229 Note: The IOP13XX watchdog does an Internal Bus Reset which will 230 affect both cores and the peripherals of the IOP. The ATU-X 231 and/or ATUe configuration registers will remain intact, but if 232 operating as an Root Complex and/or Central Resource, the PCI-X 233 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 234 235config DAVINCI_WATCHDOG 236 tristate "DaVinci watchdog" 237 depends on ARCH_DAVINCI 238 help 239 Say Y here if to include support for the watchdog timer 240 in the DaVinci DM644x/DM646x processors. 241 To compile this driver as a module, choose M here: the 242 module will be called davinci_wdt. 243 244 NOTE: once enabled, this timer cannot be disabled. 245 Say N if you are unsure. 246 247config ORION_WATCHDOG 248 tristate "Orion watchdog" 249 depends on ARCH_ORION5X || ARCH_KIRKWOOD 250 help 251 Say Y here if to include support for the watchdog timer 252 in the Marvell Orion5x and Kirkwood ARM SoCs. 253 To compile this driver as a module, choose M here: the 254 module will be called orion_wdt. 255 256config COH901327_WATCHDOG 257 bool "ST-Ericsson COH 901 327 watchdog" 258 depends on ARCH_U300 259 default y if MACH_U300 260 help 261 Say Y here to include Watchdog timer support for the 262 watchdog embedded into the ST-Ericsson U300 series platforms. 263 This watchdog is used to reset the system and thus cannot be 264 compiled as a module. 265 266config TWL4030_WATCHDOG 267 tristate "TWL4030 Watchdog" 268 depends on TWL4030_CORE 269 help 270 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 271 watchdog timer support for TWL4030 chips. 272 273config STMP3XXX_WATCHDOG 274 tristate "Freescale STMP3XXX watchdog" 275 depends on ARCH_STMP3XXX 276 help 277 Say Y here if to include support for the watchdog timer 278 for the Sigmatel STMP37XX/378X SoC. 279 To compile this driver as a module, choose M here: the 280 module will be called stmp3xxx_wdt. 281 282config NUC900_WATCHDOG 283 tristate "Nuvoton NUC900 watchdog" 284 depends on ARCH_W90X900 285 help 286 Say Y here if to include support for the watchdog timer 287 for the Nuvoton NUC900 series SoCs. 288 To compile this driver as a module, choose M here: the 289 module will be called nuc900_wdt. 290 291config ADX_WATCHDOG 292 tristate "Avionic Design Xanthos watchdog" 293 depends on ARCH_PXA_ADX 294 help 295 Say Y here if you want support for the watchdog timer on Avionic 296 Design Xanthos boards. 297 298config TS72XX_WATCHDOG 299 tristate "TS-72XX SBC Watchdog" 300 depends on MACH_TS72XX 301 help 302 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 303 watchdog timer implemented in a external CPLD chip. Say Y here 304 if you want to support for the watchdog timer on TS-72XX boards. 305 306 To compile this driver as a module, choose M here: the 307 module will be called ts72xx_wdt. 308 309config MAX63XX_WATCHDOG 310 tristate "Max63xx watchdog" 311 depends on ARM && HAS_IOMEM 312 help 313 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 314 315config IMX2_WDT 316 tristate "IMX2+ Watchdog" 317 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5 318 help 319 This is the driver for the hardware watchdog 320 on the Freescale IMX2 and later processors. 321 If you have one of these processors and wish to have 322 watchdog support enabled, say Y, otherwise say N. 323 324 To compile this driver as a module, choose M here: the 325 module will be called imx2_wdt. 326 327# AVR32 Architecture 328 329config AT32AP700X_WDT 330 tristate "AT32AP700x watchdog" 331 depends on CPU_AT32AP700X 332 help 333 Watchdog timer embedded into AT32AP700x devices. This will reboot 334 your system when the timeout is reached. 335 336# BLACKFIN Architecture 337 338config BFIN_WDT 339 tristate "Blackfin On-Chip Watchdog Timer" 340 depends on BLACKFIN 341 ---help--- 342 If you say yes here you will get support for the Blackfin On-Chip 343 Watchdog Timer. If you have one of these processors and wish to 344 have watchdog support enabled, say Y, otherwise say N. 345 346 To compile this driver as a module, choose M here: the 347 module will be called bfin_wdt. 348 349# CRIS Architecture 350 351# FRV Architecture 352 353# H8300 Architecture 354 355# X86 (i386 + ia64 + x86_64) Architecture 356 357config ACQUIRE_WDT 358 tristate "Acquire SBC Watchdog Timer" 359 depends on X86 360 ---help--- 361 This is the driver for the hardware watchdog on Single Board 362 Computers produced by Acquire Inc (and others). This watchdog 363 simply watches your kernel to make sure it doesn't freeze, and if 364 it does, it reboots your computer after a certain amount of time. 365 366 To compile this driver as a module, choose M here: the 367 module will be called acquirewdt. 368 369 Most people will say N. 370 371config ADVANTECH_WDT 372 tristate "Advantech SBC Watchdog Timer" 373 depends on X86 374 help 375 If you are configuring a Linux kernel for the Advantech single-board 376 computer, say `Y' here to support its built-in watchdog timer 377 feature. More information can be found at 378 <http://www.advantech.com.tw/products/> 379 380config ALIM1535_WDT 381 tristate "ALi M1535 PMU Watchdog Timer" 382 depends on X86 && PCI 383 ---help--- 384 This is the driver for the hardware watchdog on the ALi M1535 PMU. 385 386 To compile this driver as a module, choose M here: the 387 module will be called alim1535_wdt. 388 389 Most people will say N. 390 391config ALIM7101_WDT 392 tristate "ALi M7101 PMU Computer Watchdog" 393 depends on PCI 394 help 395 This is the driver for the hardware watchdog on the ALi M7101 PMU 396 as used in the x86 Cobalt servers and also found in some 397 SPARC Netra servers too. 398 399 To compile this driver as a module, choose M here: the 400 module will be called alim7101_wdt. 401 402 Most people will say N. 403 404config GEODE_WDT 405 tristate "AMD Geode CS5535/CS5536 Watchdog" 406 depends on CS5535_MFGPT 407 help 408 This driver enables a watchdog capability built into the 409 CS5535/CS5536 companion chips for the AMD Geode GX and LX 410 processors. This watchdog watches your kernel to make sure 411 it doesn't freeze, and if it does, it reboots your computer after 412 a certain amount of time. 413 414 You can compile this driver directly into the kernel, or use 415 it as a module. The module will be called geodewdt. 416 417config SC520_WDT 418 tristate "AMD Elan SC520 processor Watchdog" 419 depends on X86 420 help 421 This is the driver for the hardware watchdog built in to the 422 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 423 This watchdog simply watches your kernel to make sure it doesn't 424 freeze, and if it does, it reboots your computer after a certain 425 amount of time. 426 427 You can compile this driver directly into the kernel, or use 428 it as a module. The module will be called sc520_wdt. 429 430config SBC_FITPC2_WATCHDOG 431 tristate "Compulab SBC-FITPC2 watchdog" 432 depends on X86 433 ---help--- 434 This is the driver for the built-in watchdog timer on the fit-PC2, 435 fit-PC2i, CM-iAM single-board computers made by Compulab. 436 437 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 438 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 439 440 Entering BIOS setup temporary disables watchdog operation regardless to current state, 441 so system will not be restarted while user in BIOS setup. 442 443 Once watchdog was enabled the system will be restarted every 444 "Watchdog Timer Value" period, so to prevent it user can restart or 445 disable the watchdog. 446 447 To compile this driver as a module, choose M here: the 448 module will be called sbc_fitpc2_wdt. 449 450 Most people will say N. 451 452config EUROTECH_WDT 453 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 454 depends on X86 455 help 456 Enable support for the watchdog timer on the Eurotech CPU-1220 and 457 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 458 information are at <http://www.eurotech.it/>. 459 460config IB700_WDT 461 tristate "IB700 SBC Watchdog Timer" 462 depends on X86 463 ---help--- 464 This is the driver for the hardware watchdog on the IB700 Single 465 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 466 simply watches your kernel to make sure it doesn't freeze, and if 467 it does, it reboots your computer after a certain amount of time. 468 469 This driver is like the WDT501 driver but for slightly different hardware. 470 471 To compile this driver as a module, choose M here: the 472 module will be called ib700wdt. 473 474 Most people will say N. 475 476config IBMASR 477 tristate "IBM Automatic Server Restart" 478 depends on X86 479 help 480 This is the driver for the IBM Automatic Server Restart watchdog 481 timer built-in into some eServer xSeries machines. 482 483 To compile this driver as a module, choose M here: the 484 module will be called ibmasr. 485 486config WAFER_WDT 487 tristate "ICP Single Board Computer Watchdog Timer" 488 depends on X86 489 help 490 This is a driver for the hardware watchdog on the ICP Single 491 Board Computer. This driver is working on (at least) the following 492 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 493 494 To compile this driver as a module, choose M here: the 495 module will be called wafer5823wdt. 496 497config I6300ESB_WDT 498 tristate "Intel 6300ESB Timer/Watchdog" 499 depends on X86 && PCI 500 ---help--- 501 Hardware driver for the watchdog timer built into the Intel 502 6300ESB controller hub. 503 504 To compile this driver as a module, choose M here: the 505 module will be called i6300esb. 506 507config ITCO_WDT 508 tristate "Intel TCO Timer/Watchdog" 509 depends on (X86 || IA64) && PCI 510 ---help--- 511 Hardware driver for the intel TCO timer based watchdog devices. 512 These drivers are included in the Intel 82801 I/O Controller 513 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 514 controller hub. 515 516 The TCO (Total Cost of Ownership) timer is a watchdog timer 517 that will reboot the machine after its second expiration. The 518 expiration time can be configured with the "heartbeat" parameter. 519 520 On some motherboards the driver may fail to reset the chipset's 521 NO_REBOOT flag which prevents the watchdog from rebooting the 522 machine. If this is the case you will get a kernel message like 523 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 524 525 To compile this driver as a module, choose M here: the 526 module will be called iTCO_wdt. 527 528config ITCO_VENDOR_SUPPORT 529 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 530 depends on ITCO_WDT 531 ---help--- 532 Add vendor specific support to the intel TCO timer based watchdog 533 devices. At this moment we only have additional support for some 534 SuperMicro Inc. motherboards. 535 536config IT8712F_WDT 537 tristate "IT8712F (Smart Guardian) Watchdog Timer" 538 depends on X86 539 ---help--- 540 This is the driver for the built-in watchdog timer on the IT8712F 541 Super I/0 chipset used on many motherboards. 542 543 To compile this driver as a module, choose M here: the 544 module will be called it8712f_wdt. 545 546config IT87_WDT 547 tristate "IT87 Watchdog Timer" 548 depends on X86 && EXPERIMENTAL 549 ---help--- 550 This is the driver for the hardware watchdog on the ITE IT8716, 551 IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog 552 simply watches your kernel to make sure it doesn't freeze, and if 553 it does, it reboots your computer after a certain amount of time. 554 555 To compile this driver as a module, choose M here: the module will 556 be called it87_wdt. 557 558config HP_WATCHDOG 559 tristate "HP Proliant iLO 2 Hardware Watchdog Timer" 560 depends on X86 561 help 562 A software monitoring watchdog and NMI sourcing driver. This driver 563 will detect lockups and provide stack trace. Also, when an NMI 564 occurs this driver will make the necessary BIOS calls to log 565 the cause of the NMI. This is a driver that will only load on a 566 HP ProLiant system with a minimum of iLO2 support. 567 To compile this driver as a module, choose M here: the 568 module will be called hpwdt. 569 570config SC1200_WDT 571 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 572 depends on X86 573 help 574 This is a driver for National Semiconductor PC87307/PC97307 hardware 575 watchdog cards as found on the SC1200. This watchdog is mainly used 576 for power management purposes and can be used to power down the device 577 during inactivity periods (includes interrupt activity monitoring). 578 579 To compile this driver as a module, choose M here: the 580 module will be called sc1200wdt. 581 582 Most people will say N. 583 584config SCx200_WDT 585 tristate "National Semiconductor SCx200 Watchdog" 586 depends on SCx200 && PCI 587 help 588 Enable the built-in watchdog timer support on the National 589 Semiconductor SCx200 processors. 590 591 If compiled as a module, it will be called scx200_wdt. 592 593config PC87413_WDT 594 tristate "NS PC87413 watchdog" 595 depends on X86 596 ---help--- 597 This is the driver for the hardware watchdog on the PC87413 chipset 598 This watchdog simply watches your kernel to make sure it doesn't 599 freeze, and if it does, it reboots your computer after a certain 600 amount of time. 601 602 To compile this driver as a module, choose M here: the 603 module will be called pc87413_wdt. 604 605 Most people will say N. 606 607config RDC321X_WDT 608 tristate "RDC R-321x SoC watchdog" 609 depends on X86_RDC321X 610 help 611 This is the driver for the built in hardware watchdog 612 in the RDC R-321x SoC. 613 614 To compile this driver as a module, choose M here: the 615 module will be called rdc321x_wdt. 616 617config 60XX_WDT 618 tristate "SBC-60XX Watchdog Timer" 619 depends on X86 620 help 621 This driver can be used with the watchdog timer found on some 622 single board computers, namely the 6010 PII based computer. 623 It may well work with other cards. It reads port 0x443 to enable 624 and re-set the watchdog timer, and reads port 0x45 to disable 625 the watchdog. If you have a card that behave in similar ways, 626 you can probably make this driver work with your card as well. 627 628 You can compile this driver directly into the kernel, or use 629 it as a module. The module will be called sbc60xxwdt. 630 631config SBC8360_WDT 632 tristate "SBC8360 Watchdog Timer" 633 depends on X86 634 ---help--- 635 636 This is the driver for the hardware watchdog on the SBC8360 Single 637 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 638 639 To compile this driver as a module, choose M here: the 640 module will be called sbc8360. 641 642 Most people will say N. 643 644config SBC7240_WDT 645 tristate "SBC Nano 7240 Watchdog Timer" 646 depends on X86_32 647 ---help--- 648 This is the driver for the hardware watchdog found on the IEI 649 single board computers EPIC Nano 7240 (and likely others). This 650 watchdog simply watches your kernel to make sure it doesn't freeze, 651 and if it does, it reboots your computer after a certain amount of 652 time. 653 654 To compile this driver as a module, choose M here: the 655 module will be called sbc7240_wdt. 656 657config CPU5_WDT 658 tristate "SMA CPU5 Watchdog" 659 depends on X86 660 ---help--- 661 TBD. 662 To compile this driver as a module, choose M here: the 663 module will be called cpu5wdt. 664 665config SMSC_SCH311X_WDT 666 tristate "SMSC SCH311X Watchdog Timer" 667 depends on X86 668 ---help--- 669 This is the driver for the hardware watchdog timer on the 670 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 671 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 672 serial ports). 673 674 To compile this driver as a module, choose M here: the 675 module will be called sch311x_wdt. 676 677config SMSC37B787_WDT 678 tristate "Winbond SMsC37B787 Watchdog Timer" 679 depends on X86 680 ---help--- 681 This is the driver for the hardware watchdog component on the 682 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 683 from Vision Systems and maybe others. 684 685 This watchdog simply watches your kernel to make sure it doesn't 686 freeze, and if it does, it reboots your computer after a certain 687 amount of time. 688 689 Usually a userspace daemon will notify the kernel WDT driver that 690 userspace is still alive, at regular intervals. 691 692 To compile this driver as a module, choose M here: the 693 module will be called smsc37b787_wdt. 694 695 Most people will say N. 696 697config W83627HF_WDT 698 tristate "W83627HF Watchdog Timer" 699 depends on X86 700 ---help--- 701 This is the driver for the hardware watchdog on the W83627HF chipset 702 as used in Advantech PC-9578 and Tyan S2721-533 motherboards 703 (and likely others). This watchdog simply watches your kernel to 704 make sure it doesn't freeze, and if it does, it reboots your computer 705 after a certain amount of time. 706 707 To compile this driver as a module, choose M here: the 708 module will be called w83627hf_wdt. 709 710 Most people will say N. 711 712config W83697HF_WDT 713 tristate "W83697HF/W83697HG Watchdog Timer" 714 depends on X86 715 ---help--- 716 This is the driver for the hardware watchdog on the W83697HF/HG 717 chipset as used in Dedibox/VIA motherboards (and likely others). 718 This watchdog simply watches your kernel to make sure it doesn't 719 freeze, and if it does, it reboots your computer after a certain 720 amount of time. 721 722 To compile this driver as a module, choose M here: the 723 module will be called w83697hf_wdt. 724 725 Most people will say N. 726 727config W83697UG_WDT 728 tristate "W83697UG/W83697UF Watchdog Timer" 729 depends on X86 730 ---help--- 731 This is the driver for the hardware watchdog on the W83697UG/UF 732 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others). 733 This watchdog simply watches your kernel to make sure it doesn't 734 freeze, and if it does, it reboots your computer after a certain 735 amount of time. 736 737 To compile this driver as a module, choose M here: the 738 module will be called w83697ug_wdt. 739 740 Most people will say N. 741 742config W83877F_WDT 743 tristate "W83877F (EMACS) Watchdog Timer" 744 depends on X86 745 ---help--- 746 This is the driver for the hardware watchdog on the W83877F chipset 747 as used in EMACS PC-104 motherboards (and likely others). This 748 watchdog simply watches your kernel to make sure it doesn't freeze, 749 and if it does, it reboots your computer after a certain amount of 750 time. 751 752 To compile this driver as a module, choose M here: the 753 module will be called w83877f_wdt. 754 755 Most people will say N. 756 757config W83977F_WDT 758 tristate "W83977F (PCM-5335) Watchdog Timer" 759 depends on X86 760 ---help--- 761 This is the driver for the hardware watchdog on the W83977F I/O chip 762 as used in AAEON's PCM-5335 SBC (and likely others). This 763 watchdog simply watches your kernel to make sure it doesn't freeze, 764 and if it does, it reboots your computer after a certain amount of 765 time. 766 767 To compile this driver as a module, choose M here: the 768 module will be called w83977f_wdt. 769 770config MACHZ_WDT 771 tristate "ZF MachZ Watchdog" 772 depends on X86 773 ---help--- 774 If you are using a ZF Micro MachZ processor, say Y here, otherwise 775 N. This is the driver for the watchdog timer built-in on that 776 processor using ZF-Logic interface. This watchdog simply watches 777 your kernel to make sure it doesn't freeze, and if it does, it 778 reboots your computer after a certain amount of time. 779 780 To compile this driver as a module, choose M here: the 781 module will be called machzwd. 782 783config SBC_EPX_C3_WATCHDOG 784 tristate "Winsystems SBC EPX-C3 watchdog" 785 depends on X86 786 ---help--- 787 This is the driver for the built-in watchdog timer on the EPX-C3 788 Single-board computer made by Winsystems, Inc. 789 790 *Note*: This hardware watchdog is not probeable and thus there 791 is no way to know if writing to its IO address will corrupt 792 your system or have any real effect. The only way to be sure 793 that this driver does what you want is to make sure you 794 are running it on an EPX-C3 from Winsystems with the watchdog 795 timer at IO address 0x1ee and 0x1ef. It will write to both those 796 IO ports. Basically, the assumption is made that if you compile 797 this driver into your kernel and/or load it as a module, that you 798 know what you are doing and that you are in fact running on an 799 EPX-C3 board! 800 801 To compile this driver as a module, choose M here: the 802 module will be called sbc_epx_c3. 803 804# M32R Architecture 805 806# M68K Architecture 807 808# M68KNOMMU Architecture 809 810# MIPS Architecture 811 812config BCM47XX_WDT 813 tristate "Broadcom BCM47xx Watchdog Timer" 814 depends on BCM47XX 815 help 816 Hardware driver for the Broadcom BCM47xx Watchog Timer. 817 818config RC32434_WDT 819 tristate "IDT RC32434 SoC Watchdog Timer" 820 depends on MIKROTIK_RB532 821 help 822 Hardware driver for the IDT RC32434 SoC built-in 823 watchdog timer. 824 825 To compile this driver as a module, choose M here: the 826 module will be called rc32434_wdt. 827 828config INDYDOG 829 tristate "Indy/I2 Hardware Watchdog" 830 depends on SGI_HAS_INDYDOG 831 help 832 Hardware driver for the Indy's/I2's watchdog. This is a 833 watchdog timer that will reboot the machine after a 60 second 834 timer expired and no process has written to /dev/watchdog during 835 that time. 836 837config WDT_MTX1 838 tristate "MTX-1 Hardware Watchdog" 839 depends on MIPS_MTX1 840 help 841 Hardware driver for the MTX-1 boards. This is a watchdog timer that 842 will reboot the machine after a 100 seconds timer expired. 843 844config PNX833X_WDT 845 tristate "PNX833x Hardware Watchdog" 846 depends on SOC_PNX8335 847 help 848 Hardware driver for the PNX833x's watchdog. This is a 849 watchdog timer that will reboot the machine after a programable 850 timer has expired and no process has written to /dev/watchdog during 851 that time. 852 853config SIBYTE_WDOG 854 tristate "Sibyte SoC hardware watchdog" 855 depends on CPU_SB1 856 help 857 Watchdog driver for the built in watchdog hardware in Sibyte 858 SoC processors. There are apparently two watchdog timers 859 on such processors; this driver supports only the first one, 860 because currently Linux only supports exporting one watchdog 861 to userspace. 862 863 To compile this driver as a loadable module, choose M here. 864 The module will be called sb_wdog. 865 866config AR7_WDT 867 tristate "TI AR7 Watchdog Timer" 868 depends on AR7 869 help 870 Hardware driver for the TI AR7 Watchdog Timer. 871 872config TXX9_WDT 873 tristate "Toshiba TXx9 Watchdog Timer" 874 depends on CPU_TX39XX || CPU_TX49XX 875 help 876 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 877 878# PARISC Architecture 879 880# POWERPC Architecture 881 882config GEF_WDT 883 tristate "GE Watchdog Timer" 884 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A 885 ---help--- 886 Watchdog timer found in a number of GE single board computers. 887 888config MPC5200_WDT 889 bool "MPC52xx Watchdog Timer" 890 depends on PPC_MPC52xx 891 help 892 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 893 894config 8xxx_WDT 895 tristate "MPC8xxx Platform Watchdog Timer" 896 depends on PPC_8xx || PPC_83xx || PPC_86xx 897 help 898 This driver is for a SoC level watchdog that exists on some 899 Freescale PowerPC processors. So far this driver supports: 900 - MPC8xx watchdogs 901 - MPC83xx watchdogs 902 - MPC86xx watchdogs 903 904 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 905 906config MV64X60_WDT 907 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 908 depends on MV64X60 909 910config PIKA_WDT 911 tristate "PIKA FPGA Watchdog" 912 depends on WARP 913 default y 914 help 915 This enables the watchdog in the PIKA FPGA. Currently used on 916 the Warp platform. 917 918config BOOKE_WDT 919 bool "PowerPC Book-E Watchdog Timer" 920 depends on BOOKE || 4xx 921 ---help--- 922 Please see Documentation/watchdog/watchdog-api.txt for 923 more information. 924 925# PPC64 Architecture 926 927config WATCHDOG_RTAS 928 tristate "RTAS watchdog" 929 depends on PPC_RTAS 930 help 931 This driver adds watchdog support for the RTAS watchdog. 932 933 To compile this driver as a module, choose M here. The module 934 will be called wdrtas. 935 936# S390 Architecture 937 938config ZVM_WATCHDOG 939 tristate "z/VM Watchdog Timer" 940 depends on S390 941 help 942 IBM s/390 and zSeries machines running under z/VM 5.1 or later 943 provide a virtual watchdog timer to their guest that cause a 944 user define Control Program command to be executed after a 945 timeout. 946 947 To compile this driver as a module, choose M here. The module 948 will be called vmwatchdog. 949 950# SUPERH (sh + sh64) Architecture 951 952config SH_WDT 953 tristate "SuperH Watchdog" 954 depends on SUPERH && (CPU_SH3 || CPU_SH4) 955 help 956 This driver adds watchdog support for the integrated watchdog in the 957 SuperH processors. If you have one of these processors and wish 958 to have watchdog support enabled, say Y, otherwise say N. 959 960 As a side note, saying Y here will automatically boost HZ to 1000 961 so that the timer has a chance to clear the overflow counter. On 962 slower systems (such as the SH-2 and SH-3) this will likely yield 963 some performance issues. As such, the WDT should be avoided here 964 unless it is absolutely necessary. 965 966 To compile this driver as a module, choose M here: the 967 module will be called shwdt. 968 969config SH_WDT_MMAP 970 bool "Allow mmap of SH WDT" 971 default n 972 depends on SH_WDT 973 help 974 If you say Y here, user applications will be able to mmap the 975 WDT/CPG registers. 976 977# SPARC Architecture 978 979# SPARC64 Architecture 980 981config WATCHDOG_CP1XXX 982 tristate "CP1XXX Hardware Watchdog support" 983 depends on SPARC64 && PCI 984 ---help--- 985 This is the driver for the hardware watchdog timers present on 986 Sun Microsystems CompactPCI models CP1400 and CP1500. 987 988 To compile this driver as a module, choose M here: the 989 module will be called cpwatchdog. 990 991 If you do not have a CompactPCI model CP1400 or CP1500, or 992 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 993 you should say N to this option. 994 995config WATCHDOG_RIO 996 tristate "RIO Hardware Watchdog support" 997 depends on SPARC64 && PCI 998 help 999 Say Y here to support the hardware watchdog capability on Sun RIO 1000 machines. The watchdog timeout period is normally one minute but 1001 can be changed with a boot-time parameter. 1002 1003# XTENSA Architecture 1004 1005# 1006# ISA-based Watchdog Cards 1007# 1008 1009comment "ISA-based Watchdog Cards" 1010 depends on ISA 1011 1012config PCWATCHDOG 1013 tristate "Berkshire Products ISA-PC Watchdog" 1014 depends on ISA 1015 ---help--- 1016 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1017 This card simply watches your kernel to make sure it doesn't freeze, 1018 and if it does, it reboots your computer after a certain amount of 1019 time. This driver is like the WDT501 driver but for different 1020 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1021 watchdog cards can be ordered from <http://www.berkprod.com/>. 1022 1023 To compile this driver as a module, choose M here: the 1024 module will be called pcwd. 1025 1026 Most people will say N. 1027 1028config MIXCOMWD 1029 tristate "Mixcom Watchdog" 1030 depends on ISA 1031 ---help--- 1032 This is a driver for the Mixcom hardware watchdog cards. This 1033 watchdog simply watches your kernel to make sure it doesn't freeze, 1034 and if it does, it reboots your computer after a certain amount of 1035 time. 1036 1037 To compile this driver as a module, choose M here: the 1038 module will be called mixcomwd. 1039 1040 Most people will say N. 1041 1042config WDT 1043 tristate "WDT Watchdog timer" 1044 depends on ISA 1045 ---help--- 1046 If you have a WDT500P or WDT501P watchdog board, say Y here, 1047 otherwise N. It is not possible to probe for this board, which means 1048 that you have to inform the kernel about the IO port and IRQ that 1049 is needed (you can do this via the io and irq parameters) 1050 1051 To compile this driver as a module, choose M here: the 1052 module will be called wdt. 1053 1054# 1055# PCI-based Watchdog Cards 1056# 1057 1058comment "PCI-based Watchdog Cards" 1059 depends on PCI 1060 1061config PCIPCWATCHDOG 1062 tristate "Berkshire Products PCI-PC Watchdog" 1063 depends on PCI 1064 ---help--- 1065 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1066 This card simply watches your kernel to make sure it doesn't freeze, 1067 and if it does, it reboots your computer after a certain amount of 1068 time. The card can also monitor the internal temperature of the PC. 1069 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1070 1071 To compile this driver as a module, choose M here: the 1072 module will be called pcwd_pci. 1073 1074 Most people will say N. 1075 1076config WDTPCI 1077 tristate "PCI-WDT500/501 Watchdog timer" 1078 depends on PCI 1079 ---help--- 1080 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1081 1082 If you have a PCI-WDT501 watchdog board then you can enable the 1083 temperature sensor by setting the type parameter to 501. 1084 1085 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1086 can do this via the tachometer parameter. Only do this if you have a 1087 fan tachometer actually set up. 1088 1089 To compile this driver as a module, choose M here: the 1090 module will be called wdt_pci. 1091 1092# 1093# USB-based Watchdog Cards 1094# 1095 1096comment "USB-based Watchdog Cards" 1097 depends on USB 1098 1099config USBPCWATCHDOG 1100 tristate "Berkshire Products USB-PC Watchdog" 1101 depends on USB 1102 ---help--- 1103 This is the driver for the Berkshire Products USB-PC Watchdog card. 1104 This card simply watches your kernel to make sure it doesn't freeze, 1105 and if it does, it reboots your computer after a certain amount of 1106 time. The card can also monitor the internal temperature of the PC. 1107 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1108 1109 To compile this driver as a module, choose M here: the 1110 module will be called pcwd_usb. 1111 1112 Most people will say N. 1113 1114endif # WATCHDOG 1115