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 ARM_SP805_WATCHDOG 77 tristate "ARM SP805 Watchdog" 78 depends on ARM_AMBA 79 help 80 ARM Primecell SP805 Watchdog timer. This will reboot your system when 81 the timeout is reached. 82 83config AT91RM9200_WATCHDOG 84 tristate "AT91RM9200 watchdog" 85 depends on ARCH_AT91RM9200 86 help 87 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 88 system when the timeout is reached. 89 90config AT91SAM9X_WATCHDOG 91 tristate "AT91SAM9X / AT91CAP9 watchdog" 92 depends on ARCH_AT91 && !ARCH_AT91RM9200 93 help 94 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 95 reboot your system when the timeout is reached. 96 97config 21285_WATCHDOG 98 tristate "DC21285 watchdog" 99 depends on FOOTBRIDGE 100 help 101 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 102 here if you wish to use this. Alternatively say M to compile the 103 driver as a module, which will be called wdt285. 104 105 This driver does not work on all machines. In particular, early CATS 106 boards have hardware problems that will cause the machine to simply 107 lock up if the watchdog fires. 108 109 "If in doubt, leave it out" - say N. 110 111config 977_WATCHDOG 112 tristate "NetWinder WB83C977 watchdog" 113 depends on FOOTBRIDGE && ARCH_NETWINDER 114 help 115 Say Y here to include support for the WB977 watchdog included in 116 NetWinder machines. Alternatively say M to compile the driver as 117 a module, which will be called wdt977. 118 119 Not sure? It's safe to say N. 120 121config IXP2000_WATCHDOG 122 tristate "IXP2000 Watchdog" 123 depends on ARCH_IXP2000 124 help 125 Say Y here if to include support for the watchdog timer 126 in the Intel IXP2000(2400, 2800, 2850) network processors. 127 This driver can be built as a module by choosing M. The module 128 will be called ixp2000_wdt. 129 130 Say N if you are unsure. 131 132config IXP4XX_WATCHDOG 133 tristate "IXP4xx Watchdog" 134 depends on ARCH_IXP4XX 135 help 136 Say Y here if to include support for the watchdog timer 137 in the Intel IXP4xx network processors. This driver can 138 be built as a module by choosing M. The module will 139 be called ixp4xx_wdt. 140 141 Note: The internal IXP4xx watchdog does a soft CPU reset 142 which doesn't reset any peripherals. There are circumstances 143 where the watchdog will fail to reset the board correctly 144 (e.g., if the boot ROM is in an unreadable state). 145 146 Say N if you are unsure. 147 148config KS8695_WATCHDOG 149 tristate "KS8695 watchdog" 150 depends on ARCH_KS8695 151 help 152 Watchdog timer embedded into KS8695 processor. This will reboot your 153 system when the timeout is reached. 154 155config HAVE_S3C2410_WATCHDOG 156 bool 157 help 158 This will include watchdog timer support for Samsung SoCs. If 159 you want to include watchdog support for any machine, kindly 160 select this in the respective mach-XXXX/Kconfig file. 161 162config S3C2410_WATCHDOG 163 tristate "S3C2410 Watchdog" 164 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG 165 help 166 Watchdog timer block in the Samsung SoCs. This will reboot 167 the system when the timer expires with the watchdog enabled. 168 169 The driver is limited by the speed of the system's PCLK 170 signal, so with reasonably fast systems (PCLK around 50-66MHz) 171 then watchdog intervals of over approximately 20seconds are 172 unavailable. 173 174 The driver can be built as a module by choosing M, and will 175 be called s3c2410_wdt 176 177config SA1100_WATCHDOG 178 tristate "SA1100/PXA2xx watchdog" 179 depends on ARCH_SA1100 || ARCH_PXA 180 help 181 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 182 reboot your system when timeout is reached. 183 184 NOTE: once enabled, this timer cannot be disabled. 185 186 To compile this driver as a module, choose M here: the 187 module will be called sa1100_wdt. 188 189config MPCORE_WATCHDOG 190 tristate "MPcore watchdog" 191 depends on HAVE_ARM_TWD 192 help 193 Watchdog timer embedded into the MPcore system. 194 195 To compile this driver as a module, choose M here: the 196 module will be called mpcore_wdt. 197 198config EP93XX_WATCHDOG 199 tristate "EP93xx Watchdog" 200 depends on ARCH_EP93XX 201 help 202 Say Y here if to include support for the watchdog timer 203 embedded in the Cirrus Logic EP93xx family of devices. 204 205 To compile this driver as a module, choose M here: the 206 module will be called ep93xx_wdt. 207 208config OMAP_WATCHDOG 209 tristate "OMAP Watchdog" 210 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 211 help 212 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 213 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 214 215config PNX4008_WATCHDOG 216 tristate "PNX4008 and LPC32XX Watchdog" 217 depends on ARCH_PNX4008 || ARCH_LPC32XX 218 help 219 Say Y here if to include support for the watchdog timer 220 in the PNX4008 or LPC32XX processor. 221 This driver can be built as a module by choosing M. The module 222 will be called pnx4008_wdt. 223 224 Say N if you are unsure. 225 226config IOP_WATCHDOG 227 tristate "IOP Watchdog" 228 depends on PLAT_IOP 229 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 230 help 231 Say Y here if to include support for the watchdog timer 232 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 233 be built as a module by choosing M. The module will 234 be called iop_wdt. 235 236 Note: The IOP13XX watchdog does an Internal Bus Reset which will 237 affect both cores and the peripherals of the IOP. The ATU-X 238 and/or ATUe configuration registers will remain intact, but if 239 operating as an Root Complex and/or Central Resource, the PCI-X 240 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 241 242config DAVINCI_WATCHDOG 243 tristate "DaVinci watchdog" 244 depends on ARCH_DAVINCI 245 help 246 Say Y here if to include support for the watchdog timer 247 in the DaVinci DM644x/DM646x processors. 248 To compile this driver as a module, choose M here: the 249 module will be called davinci_wdt. 250 251 NOTE: once enabled, this timer cannot be disabled. 252 Say N if you are unsure. 253 254config ORION_WATCHDOG 255 tristate "Orion watchdog" 256 depends on ARCH_ORION5X || ARCH_KIRKWOOD 257 help 258 Say Y here if to include support for the watchdog timer 259 in the Marvell Orion5x and Kirkwood ARM SoCs. 260 To compile this driver as a module, choose M here: the 261 module will be called orion_wdt. 262 263config COH901327_WATCHDOG 264 bool "ST-Ericsson COH 901 327 watchdog" 265 depends on ARCH_U300 266 default y if MACH_U300 267 help 268 Say Y here to include Watchdog timer support for the 269 watchdog embedded into the ST-Ericsson U300 series platforms. 270 This watchdog is used to reset the system and thus cannot be 271 compiled as a module. 272 273config TWL4030_WATCHDOG 274 tristate "TWL4030 Watchdog" 275 depends on TWL4030_CORE 276 help 277 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 278 watchdog timer support for TWL4030 chips. 279 280config STMP3XXX_WATCHDOG 281 tristate "Freescale STMP3XXX watchdog" 282 depends on ARCH_STMP3XXX 283 help 284 Say Y here if to include support for the watchdog timer 285 for the Sigmatel STMP37XX/378X SoC. 286 To compile this driver as a module, choose M here: the 287 module will be called stmp3xxx_wdt. 288 289config NUC900_WATCHDOG 290 tristate "Nuvoton NUC900 watchdog" 291 depends on ARCH_W90X900 292 help 293 Say Y here if to include support for the watchdog timer 294 for the Nuvoton NUC900 series SoCs. 295 To compile this driver as a module, choose M here: the 296 module will be called nuc900_wdt. 297 298config ADX_WATCHDOG 299 tristate "Avionic Design Xanthos watchdog" 300 depends on ARCH_PXA_ADX 301 help 302 Say Y here if you want support for the watchdog timer on Avionic 303 Design Xanthos boards. 304 305config TS72XX_WATCHDOG 306 tristate "TS-72XX SBC Watchdog" 307 depends on MACH_TS72XX 308 help 309 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 310 watchdog timer implemented in a external CPLD chip. Say Y here 311 if you want to support for the watchdog timer on TS-72XX boards. 312 313 To compile this driver as a module, choose M here: the 314 module will be called ts72xx_wdt. 315 316config MAX63XX_WATCHDOG 317 tristate "Max63xx watchdog" 318 depends on ARM && HAS_IOMEM 319 help 320 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 321 322config IMX2_WDT 323 tristate "IMX2+ Watchdog" 324 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5 325 help 326 This is the driver for the hardware watchdog 327 on the Freescale IMX2 and later processors. 328 If you have one of these processors and wish to have 329 watchdog support enabled, say Y, otherwise say N. 330 331 To compile this driver as a module, choose M here: the 332 module will be called imx2_wdt. 333 334# AVR32 Architecture 335 336config AT32AP700X_WDT 337 tristate "AT32AP700x watchdog" 338 depends on CPU_AT32AP700X 339 help 340 Watchdog timer embedded into AT32AP700x devices. This will reboot 341 your system when the timeout is reached. 342 343# BLACKFIN Architecture 344 345config BFIN_WDT 346 tristate "Blackfin On-Chip Watchdog Timer" 347 depends on BLACKFIN 348 ---help--- 349 If you say yes here you will get support for the Blackfin On-Chip 350 Watchdog Timer. If you have one of these processors and wish to 351 have watchdog support enabled, say Y, otherwise say N. 352 353 To compile this driver as a module, choose M here: the 354 module will be called bfin_wdt. 355 356# CRIS Architecture 357 358# FRV Architecture 359 360# H8300 Architecture 361 362# X86 (i386 + ia64 + x86_64) Architecture 363 364config ACQUIRE_WDT 365 tristate "Acquire SBC Watchdog Timer" 366 depends on X86 367 ---help--- 368 This is the driver for the hardware watchdog on Single Board 369 Computers produced by Acquire Inc (and others). This watchdog 370 simply watches your kernel to make sure it doesn't freeze, and if 371 it does, it reboots your computer after a certain amount of time. 372 373 To compile this driver as a module, choose M here: the 374 module will be called acquirewdt. 375 376 Most people will say N. 377 378config ADVANTECH_WDT 379 tristate "Advantech SBC Watchdog Timer" 380 depends on X86 381 help 382 If you are configuring a Linux kernel for the Advantech single-board 383 computer, say `Y' here to support its built-in watchdog timer 384 feature. More information can be found at 385 <http://www.advantech.com.tw/products/> 386 387config ALIM1535_WDT 388 tristate "ALi M1535 PMU Watchdog Timer" 389 depends on X86 && PCI 390 ---help--- 391 This is the driver for the hardware watchdog on the ALi M1535 PMU. 392 393 To compile this driver as a module, choose M here: the 394 module will be called alim1535_wdt. 395 396 Most people will say N. 397 398config ALIM7101_WDT 399 tristate "ALi M7101 PMU Computer Watchdog" 400 depends on PCI 401 help 402 This is the driver for the hardware watchdog on the ALi M7101 PMU 403 as used in the x86 Cobalt servers and also found in some 404 SPARC Netra servers too. 405 406 To compile this driver as a module, choose M here: the 407 module will be called alim7101_wdt. 408 409 Most people will say N. 410 411config F71808E_WDT 412 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 413 depends on X86 && EXPERIMENTAL 414 help 415 This is the driver for the hardware watchdog on the Fintek 416 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 417 418 You can compile this driver directly into the kernel, or use 419 it as a module. The module will be called f71808e_wdt. 420 421config SP5100_TCO 422 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 423 depends on X86 && PCI 424 ---help--- 425 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 426 (Total Cost of Ownership) timer is a watchdog timer that will reboot 427 the machine after its expiration. The expiration time can be 428 configured with the "heartbeat" parameter. 429 430 To compile this driver as a module, choose M here: the 431 module will be called sp5100_tco. 432 433config GEODE_WDT 434 tristate "AMD Geode CS5535/CS5536 Watchdog" 435 depends on CS5535_MFGPT 436 help 437 This driver enables a watchdog capability built into the 438 CS5535/CS5536 companion chips for the AMD Geode GX and LX 439 processors. This watchdog watches your kernel to make sure 440 it doesn't freeze, and if it does, it reboots your computer after 441 a certain amount of time. 442 443 You can compile this driver directly into the kernel, or use 444 it as a module. The module will be called geodewdt. 445 446config SC520_WDT 447 tristate "AMD Elan SC520 processor Watchdog" 448 depends on X86 449 help 450 This is the driver for the hardware watchdog built in to the 451 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 452 This watchdog simply watches your kernel to make sure it doesn't 453 freeze, and if it does, it reboots your computer after a certain 454 amount of time. 455 456 You can compile this driver directly into the kernel, or use 457 it as a module. The module will be called sc520_wdt. 458 459config SBC_FITPC2_WATCHDOG 460 tristate "Compulab SBC-FITPC2 watchdog" 461 depends on X86 462 ---help--- 463 This is the driver for the built-in watchdog timer on the fit-PC2, 464 fit-PC2i, CM-iAM single-board computers made by Compulab. 465 466 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 467 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 468 469 Entering BIOS setup temporary disables watchdog operation regardless to current state, 470 so system will not be restarted while user in BIOS setup. 471 472 Once watchdog was enabled the system will be restarted every 473 "Watchdog Timer Value" period, so to prevent it user can restart or 474 disable the watchdog. 475 476 To compile this driver as a module, choose M here: the 477 module will be called sbc_fitpc2_wdt. 478 479 Most people will say N. 480 481config EUROTECH_WDT 482 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 483 depends on X86 484 help 485 Enable support for the watchdog timer on the Eurotech CPU-1220 and 486 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 487 information are at <http://www.eurotech.it/>. 488 489config IB700_WDT 490 tristate "IB700 SBC Watchdog Timer" 491 depends on X86 492 ---help--- 493 This is the driver for the hardware watchdog on the IB700 Single 494 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 495 simply watches your kernel to make sure it doesn't freeze, and if 496 it does, it reboots your computer after a certain amount of time. 497 498 This driver is like the WDT501 driver but for slightly different hardware. 499 500 To compile this driver as a module, choose M here: the 501 module will be called ib700wdt. 502 503 Most people will say N. 504 505config IBMASR 506 tristate "IBM Automatic Server Restart" 507 depends on X86 508 help 509 This is the driver for the IBM Automatic Server Restart watchdog 510 timer built-in into some eServer xSeries machines. 511 512 To compile this driver as a module, choose M here: the 513 module will be called ibmasr. 514 515config WAFER_WDT 516 tristate "ICP Single Board Computer Watchdog Timer" 517 depends on X86 518 help 519 This is a driver for the hardware watchdog on the ICP Single 520 Board Computer. This driver is working on (at least) the following 521 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 522 523 To compile this driver as a module, choose M here: the 524 module will be called wafer5823wdt. 525 526config I6300ESB_WDT 527 tristate "Intel 6300ESB Timer/Watchdog" 528 depends on X86 && PCI 529 ---help--- 530 Hardware driver for the watchdog timer built into the Intel 531 6300ESB controller hub. 532 533 To compile this driver as a module, choose M here: the 534 module will be called i6300esb. 535 536config ITCO_WDT 537 tristate "Intel TCO Timer/Watchdog" 538 depends on (X86 || IA64) && PCI 539 ---help--- 540 Hardware driver for the intel TCO timer based watchdog devices. 541 These drivers are included in the Intel 82801 I/O Controller 542 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 543 controller hub. 544 545 The TCO (Total Cost of Ownership) timer is a watchdog timer 546 that will reboot the machine after its second expiration. The 547 expiration time can be configured with the "heartbeat" parameter. 548 549 On some motherboards the driver may fail to reset the chipset's 550 NO_REBOOT flag which prevents the watchdog from rebooting the 551 machine. If this is the case you will get a kernel message like 552 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 553 554 To compile this driver as a module, choose M here: the 555 module will be called iTCO_wdt. 556 557config ITCO_VENDOR_SUPPORT 558 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 559 depends on ITCO_WDT 560 ---help--- 561 Add vendor specific support to the intel TCO timer based watchdog 562 devices. At this moment we only have additional support for some 563 SuperMicro Inc. motherboards. 564 565config IT8712F_WDT 566 tristate "IT8712F (Smart Guardian) Watchdog Timer" 567 depends on X86 568 ---help--- 569 This is the driver for the built-in watchdog timer on the IT8712F 570 Super I/0 chipset used on many motherboards. 571 572 If the driver does not work, then make sure that the game port in 573 the BIOS is enabled. 574 575 To compile this driver as a module, choose M here: the 576 module will be called it8712f_wdt. 577 578config IT87_WDT 579 tristate "IT87 Watchdog Timer" 580 depends on X86 && EXPERIMENTAL 581 ---help--- 582 This is the driver for the hardware watchdog on the ITE IT8702, 583 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips. 584 This watchdog simply watches your kernel to make sure it doesn't 585 freeze, and if it does, it reboots your computer after a certain 586 amount of time. 587 588 To compile this driver as a module, choose M here: the module will 589 be called it87_wdt. 590 591config HP_WATCHDOG 592 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 593 depends on X86 594 default m 595 help 596 A software monitoring watchdog and NMI sourcing driver. This driver 597 will detect lockups and provide a stack trace. This is a driver that 598 will only load on an HP ProLiant system with a minimum of iLO2 support. 599 To compile this driver as a module, choose M here: the module will be 600 called hpwdt. 601 602config HPWDT_NMI_DECODING 603 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 604 depends on HP_WATCHDOG 605 default y 606 help 607 When an NMI occurs this feature will make the necessary BIOS calls to 608 log the cause of the NMI. 609 610config SC1200_WDT 611 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 612 depends on X86 613 help 614 This is a driver for National Semiconductor PC87307/PC97307 hardware 615 watchdog cards as found on the SC1200. This watchdog is mainly used 616 for power management purposes and can be used to power down the device 617 during inactivity periods (includes interrupt activity monitoring). 618 619 To compile this driver as a module, choose M here: the 620 module will be called sc1200wdt. 621 622 Most people will say N. 623 624config SCx200_WDT 625 tristate "National Semiconductor SCx200 Watchdog" 626 depends on SCx200 && PCI 627 help 628 Enable the built-in watchdog timer support on the National 629 Semiconductor SCx200 processors. 630 631 If compiled as a module, it will be called scx200_wdt. 632 633config PC87413_WDT 634 tristate "NS PC87413 watchdog" 635 depends on X86 636 ---help--- 637 This is the driver for the hardware watchdog on the PC87413 chipset 638 This watchdog simply watches your kernel to make sure it doesn't 639 freeze, and if it does, it reboots your computer after a certain 640 amount of time. 641 642 To compile this driver as a module, choose M here: the 643 module will be called pc87413_wdt. 644 645 Most people will say N. 646 647config NV_TCO 648 tristate "nVidia TCO Timer/Watchdog" 649 depends on X86 && PCI 650 ---help--- 651 Hardware driver for the TCO timer built into the nVidia Hub family 652 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 653 watchdog timer that will reboot the machine after its second 654 expiration. The expiration time can be configured with the 655 "heartbeat" parameter. 656 657 On some motherboards the driver may fail to reset the chipset's 658 NO_REBOOT flag which prevents the watchdog from rebooting the 659 machine. If this is the case you will get a kernel message like 660 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 661 662 To compile this driver as a module, choose M here: the 663 module will be called nv_tco. 664 665config RDC321X_WDT 666 tristate "RDC R-321x SoC watchdog" 667 depends on X86_RDC321X 668 help 669 This is the driver for the built in hardware watchdog 670 in the RDC R-321x SoC. 671 672 To compile this driver as a module, choose M here: the 673 module will be called rdc321x_wdt. 674 675config 60XX_WDT 676 tristate "SBC-60XX Watchdog Timer" 677 depends on X86 678 help 679 This driver can be used with the watchdog timer found on some 680 single board computers, namely the 6010 PII based computer. 681 It may well work with other cards. It reads port 0x443 to enable 682 and re-set the watchdog timer, and reads port 0x45 to disable 683 the watchdog. If you have a card that behave in similar ways, 684 you can probably make this driver work with your card as well. 685 686 You can compile this driver directly into the kernel, or use 687 it as a module. The module will be called sbc60xxwdt. 688 689config SBC8360_WDT 690 tristate "SBC8360 Watchdog Timer" 691 depends on X86 692 ---help--- 693 694 This is the driver for the hardware watchdog on the SBC8360 Single 695 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 696 697 To compile this driver as a module, choose M here: the 698 module will be called sbc8360. 699 700 Most people will say N. 701 702config SBC7240_WDT 703 tristate "SBC Nano 7240 Watchdog Timer" 704 depends on X86_32 705 ---help--- 706 This is the driver for the hardware watchdog found on the IEI 707 single board computers EPIC Nano 7240 (and likely others). This 708 watchdog simply watches your kernel to make sure it doesn't freeze, 709 and if it does, it reboots your computer after a certain amount of 710 time. 711 712 To compile this driver as a module, choose M here: the 713 module will be called sbc7240_wdt. 714 715config CPU5_WDT 716 tristate "SMA CPU5 Watchdog" 717 depends on X86 718 ---help--- 719 TBD. 720 To compile this driver as a module, choose M here: the 721 module will be called cpu5wdt. 722 723config SMSC_SCH311X_WDT 724 tristate "SMSC SCH311X Watchdog Timer" 725 depends on X86 726 ---help--- 727 This is the driver for the hardware watchdog timer on the 728 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 729 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 730 serial ports). 731 732 To compile this driver as a module, choose M here: the 733 module will be called sch311x_wdt. 734 735config SMSC37B787_WDT 736 tristate "Winbond SMsC37B787 Watchdog Timer" 737 depends on X86 738 ---help--- 739 This is the driver for the hardware watchdog component on the 740 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 741 from Vision Systems and maybe others. 742 743 This watchdog simply watches your kernel to make sure it doesn't 744 freeze, and if it does, it reboots your computer after a certain 745 amount of time. 746 747 Usually a userspace daemon will notify the kernel WDT driver that 748 userspace is still alive, at regular intervals. 749 750 To compile this driver as a module, choose M here: the 751 module will be called smsc37b787_wdt. 752 753 Most people will say N. 754 755config W83627HF_WDT 756 tristate "W83627HF/W83627DHG Watchdog Timer" 757 depends on X86 758 ---help--- 759 This is the driver for the hardware watchdog on the W83627HF chipset 760 as used in Advantech PC-9578 and Tyan S2721-533 motherboards 761 (and likely others). The driver also supports the W83627DHG chip. 762 This watchdog simply watches your kernel to make sure it doesn't 763 freeze, and if it does, it reboots your computer after a certain 764 amount of time. 765 766 To compile this driver as a module, choose M here: the 767 module will be called w83627hf_wdt. 768 769 Most people will say N. 770 771config W83697HF_WDT 772 tristate "W83697HF/W83697HG Watchdog Timer" 773 depends on X86 774 ---help--- 775 This is the driver for the hardware watchdog on the W83697HF/HG 776 chipset as used in Dedibox/VIA motherboards (and likely others). 777 This watchdog simply watches your kernel to make sure it doesn't 778 freeze, and if it does, it reboots your computer after a certain 779 amount of time. 780 781 To compile this driver as a module, choose M here: the 782 module will be called w83697hf_wdt. 783 784 Most people will say N. 785 786config W83697UG_WDT 787 tristate "W83697UG/W83697UF Watchdog Timer" 788 depends on X86 789 ---help--- 790 This is the driver for the hardware watchdog on the W83697UG/UF 791 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others). 792 This watchdog simply watches your kernel to make sure it doesn't 793 freeze, and if it does, it reboots your computer after a certain 794 amount of time. 795 796 To compile this driver as a module, choose M here: the 797 module will be called w83697ug_wdt. 798 799 Most people will say N. 800 801config W83877F_WDT 802 tristate "W83877F (EMACS) Watchdog Timer" 803 depends on X86 804 ---help--- 805 This is the driver for the hardware watchdog on the W83877F chipset 806 as used in EMACS PC-104 motherboards (and likely others). This 807 watchdog simply watches your kernel to make sure it doesn't freeze, 808 and if it does, it reboots your computer after a certain amount of 809 time. 810 811 To compile this driver as a module, choose M here: the 812 module will be called w83877f_wdt. 813 814 Most people will say N. 815 816config W83977F_WDT 817 tristate "W83977F (PCM-5335) Watchdog Timer" 818 depends on X86 819 ---help--- 820 This is the driver for the hardware watchdog on the W83977F I/O chip 821 as used in AAEON's PCM-5335 SBC (and likely others). This 822 watchdog simply watches your kernel to make sure it doesn't freeze, 823 and if it does, it reboots your computer after a certain amount of 824 time. 825 826 To compile this driver as a module, choose M here: the 827 module will be called w83977f_wdt. 828 829config MACHZ_WDT 830 tristate "ZF MachZ Watchdog" 831 depends on X86 832 ---help--- 833 If you are using a ZF Micro MachZ processor, say Y here, otherwise 834 N. This is the driver for the watchdog timer built-in on that 835 processor using ZF-Logic interface. This watchdog simply watches 836 your kernel to make sure it doesn't freeze, and if it does, it 837 reboots your computer after a certain amount of time. 838 839 To compile this driver as a module, choose M here: the 840 module will be called machzwd. 841 842config SBC_EPX_C3_WATCHDOG 843 tristate "Winsystems SBC EPX-C3 watchdog" 844 depends on X86 845 ---help--- 846 This is the driver for the built-in watchdog timer on the EPX-C3 847 Single-board computer made by Winsystems, Inc. 848 849 *Note*: This hardware watchdog is not probeable and thus there 850 is no way to know if writing to its IO address will corrupt 851 your system or have any real effect. The only way to be sure 852 that this driver does what you want is to make sure you 853 are running it on an EPX-C3 from Winsystems with the watchdog 854 timer at IO address 0x1ee and 0x1ef. It will write to both those 855 IO ports. Basically, the assumption is made that if you compile 856 this driver into your kernel and/or load it as a module, that you 857 know what you are doing and that you are in fact running on an 858 EPX-C3 board! 859 860 To compile this driver as a module, choose M here: the 861 module will be called sbc_epx_c3. 862 863# M32R Architecture 864 865# M68K Architecture 866 867config M54xx_WATCHDOG 868 tristate "MCF54xx watchdog support" 869 depends on M548x 870 help 871 To compile this driver as a module, choose M here: the 872 module will be called m54xx_wdt. 873 874# MIPS Architecture 875 876config ATH79_WDT 877 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 878 depends on ATH79 879 help 880 Hardware driver for the built-in watchdog timer on the Atheros 881 AR71XX/AR724X/AR913X SoCs. 882 883config BCM47XX_WDT 884 tristate "Broadcom BCM47xx Watchdog Timer" 885 depends on BCM47XX 886 help 887 Hardware driver for the Broadcom BCM47xx Watchog Timer. 888 889config RC32434_WDT 890 tristate "IDT RC32434 SoC Watchdog Timer" 891 depends on MIKROTIK_RB532 892 help 893 Hardware driver for the IDT RC32434 SoC built-in 894 watchdog timer. 895 896 To compile this driver as a module, choose M here: the 897 module will be called rc32434_wdt. 898 899config INDYDOG 900 tristate "Indy/I2 Hardware Watchdog" 901 depends on SGI_HAS_INDYDOG 902 help 903 Hardware driver for the Indy's/I2's watchdog. This is a 904 watchdog timer that will reboot the machine after a 60 second 905 timer expired and no process has written to /dev/watchdog during 906 that time. 907 908config JZ4740_WDT 909 tristate "Ingenic jz4740 SoC hardware watchdog" 910 depends on MACH_JZ4740 911 help 912 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 913 914config WDT_MTX1 915 tristate "MTX-1 Hardware Watchdog" 916 depends on MIPS_MTX1 917 help 918 Hardware driver for the MTX-1 boards. This is a watchdog timer that 919 will reboot the machine after a 100 seconds timer expired. 920 921config PNX833X_WDT 922 tristate "PNX833x Hardware Watchdog" 923 depends on SOC_PNX8335 924 help 925 Hardware driver for the PNX833x's watchdog. This is a 926 watchdog timer that will reboot the machine after a programable 927 timer has expired and no process has written to /dev/watchdog during 928 that time. 929 930config SIBYTE_WDOG 931 tristate "Sibyte SoC hardware watchdog" 932 depends on CPU_SB1 933 help 934 Watchdog driver for the built in watchdog hardware in Sibyte 935 SoC processors. There are apparently two watchdog timers 936 on such processors; this driver supports only the first one, 937 because currently Linux only supports exporting one watchdog 938 to userspace. 939 940 To compile this driver as a loadable module, choose M here. 941 The module will be called sb_wdog. 942 943config AR7_WDT 944 tristate "TI AR7 Watchdog Timer" 945 depends on AR7 946 help 947 Hardware driver for the TI AR7 Watchdog Timer. 948 949config TXX9_WDT 950 tristate "Toshiba TXx9 Watchdog Timer" 951 depends on CPU_TX39XX || CPU_TX49XX 952 help 953 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 954 955config OCTEON_WDT 956 tristate "Cavium OCTEON SOC family Watchdog Timer" 957 depends on CPU_CAVIUM_OCTEON 958 default y 959 select EXPORT_UASM if OCTEON_WDT = m 960 help 961 Hardware driver for OCTEON's on chip watchdog timer. 962 Enables the watchdog for all cores running Linux. It 963 installs a NMI handler and pokes the watchdog based on an 964 interrupt. On first expiration of the watchdog, the 965 interrupt handler pokes it. The second expiration causes an 966 NMI that prints a message. The third expiration causes a 967 global soft reset. 968 969 When userspace has /dev/watchdog open, no poking is done 970 from the first interrupt, it is then only poked when the 971 device is written. 972 973config BCM63XX_WDT 974 tristate "Broadcom BCM63xx hardware watchdog" 975 depends on BCM63XX 976 help 977 Watchdog driver for the built in watchdog hardware in Broadcom 978 BCM63xx SoC. 979 980 To compile this driver as a loadable module, choose M here. 981 The module will be called bcm63xx_wdt. 982 983# PARISC Architecture 984 985# POWERPC Architecture 986 987config GEF_WDT 988 tristate "GE Watchdog Timer" 989 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A 990 ---help--- 991 Watchdog timer found in a number of GE single board computers. 992 993config MPC5200_WDT 994 bool "MPC52xx Watchdog Timer" 995 depends on PPC_MPC52xx 996 help 997 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 998 999config 8xxx_WDT 1000 tristate "MPC8xxx Platform Watchdog Timer" 1001 depends on PPC_8xx || PPC_83xx || PPC_86xx 1002 help 1003 This driver is for a SoC level watchdog that exists on some 1004 Freescale PowerPC processors. So far this driver supports: 1005 - MPC8xx watchdogs 1006 - MPC83xx watchdogs 1007 - MPC86xx watchdogs 1008 1009 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1010 1011config MV64X60_WDT 1012 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1013 depends on MV64X60 1014 1015config PIKA_WDT 1016 tristate "PIKA FPGA Watchdog" 1017 depends on WARP 1018 default y 1019 help 1020 This enables the watchdog in the PIKA FPGA. Currently used on 1021 the Warp platform. 1022 1023config BOOKE_WDT 1024 tristate "PowerPC Book-E Watchdog Timer" 1025 depends on BOOKE || 4xx 1026 ---help--- 1027 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1028 MPC85xx SOCs and the IBM PowerPC 440. 1029 1030 Please see Documentation/watchdog/watchdog-api.txt for 1031 more information. 1032 1033config BOOKE_WDT_DEFAULT_TIMEOUT 1034 int "PowerPC Book-E Watchdog Timer Default Timeout" 1035 depends on BOOKE_WDT 1036 default 38 if FSL_BOOKE 1037 range 0 63 if FSL_BOOKE 1038 default 3 if !FSL_BOOKE 1039 range 0 3 if !FSL_BOOKE 1040 help 1041 Select the default watchdog timer period to be used by the PowerPC 1042 Book-E watchdog driver. A watchdog "event" occurs when the bit 1043 position represented by this number transitions from zero to one. 1044 1045 For Freescale Book-E processors, this is a number between 0 and 63. 1046 For other Book-E processors, this is a number between 0 and 3. 1047 1048 The value can be overidden by the wdt_period command-line parameter. 1049 1050# PPC64 Architecture 1051 1052config WATCHDOG_RTAS 1053 tristate "RTAS watchdog" 1054 depends on PPC_RTAS 1055 help 1056 This driver adds watchdog support for the RTAS watchdog. 1057 1058 To compile this driver as a module, choose M here. The module 1059 will be called wdrtas. 1060 1061# S390 Architecture 1062 1063config ZVM_WATCHDOG 1064 tristate "z/VM Watchdog Timer" 1065 depends on S390 1066 help 1067 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1068 provide a virtual watchdog timer to their guest that cause a 1069 user define Control Program command to be executed after a 1070 timeout. 1071 1072 To compile this driver as a module, choose M here. The module 1073 will be called vmwatchdog. 1074 1075# SUPERH (sh + sh64) Architecture 1076 1077config SH_WDT 1078 tristate "SuperH Watchdog" 1079 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1080 help 1081 This driver adds watchdog support for the integrated watchdog in the 1082 SuperH processors. If you have one of these processors and wish 1083 to have watchdog support enabled, say Y, otherwise say N. 1084 1085 As a side note, saying Y here will automatically boost HZ to 1000 1086 so that the timer has a chance to clear the overflow counter. On 1087 slower systems (such as the SH-2 and SH-3) this will likely yield 1088 some performance issues. As such, the WDT should be avoided here 1089 unless it is absolutely necessary. 1090 1091 To compile this driver as a module, choose M here: the 1092 module will be called shwdt. 1093 1094config SH_WDT_MMAP 1095 bool "Allow mmap of SH WDT" 1096 default n 1097 depends on SH_WDT 1098 help 1099 If you say Y here, user applications will be able to mmap the 1100 WDT/CPG registers. 1101 1102# SPARC Architecture 1103 1104# SPARC64 Architecture 1105 1106config WATCHDOG_CP1XXX 1107 tristate "CP1XXX Hardware Watchdog support" 1108 depends on SPARC64 && PCI 1109 ---help--- 1110 This is the driver for the hardware watchdog timers present on 1111 Sun Microsystems CompactPCI models CP1400 and CP1500. 1112 1113 To compile this driver as a module, choose M here: the 1114 module will be called cpwatchdog. 1115 1116 If you do not have a CompactPCI model CP1400 or CP1500, or 1117 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1118 you should say N to this option. 1119 1120config WATCHDOG_RIO 1121 tristate "RIO Hardware Watchdog support" 1122 depends on SPARC64 && PCI 1123 help 1124 Say Y here to support the hardware watchdog capability on Sun RIO 1125 machines. The watchdog timeout period is normally one minute but 1126 can be changed with a boot-time parameter. 1127 1128# XTENSA Architecture 1129 1130# 1131# ISA-based Watchdog Cards 1132# 1133 1134comment "ISA-based Watchdog Cards" 1135 depends on ISA 1136 1137config PCWATCHDOG 1138 tristate "Berkshire Products ISA-PC Watchdog" 1139 depends on ISA 1140 ---help--- 1141 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1142 This card simply watches your kernel to make sure it doesn't freeze, 1143 and if it does, it reboots your computer after a certain amount of 1144 time. This driver is like the WDT501 driver but for different 1145 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1146 watchdog cards can be ordered from <http://www.berkprod.com/>. 1147 1148 To compile this driver as a module, choose M here: the 1149 module will be called pcwd. 1150 1151 Most people will say N. 1152 1153config MIXCOMWD 1154 tristate "Mixcom Watchdog" 1155 depends on ISA 1156 ---help--- 1157 This is a driver for the Mixcom hardware watchdog cards. This 1158 watchdog simply watches your kernel to make sure it doesn't freeze, 1159 and if it does, it reboots your computer after a certain amount of 1160 time. 1161 1162 To compile this driver as a module, choose M here: the 1163 module will be called mixcomwd. 1164 1165 Most people will say N. 1166 1167config WDT 1168 tristate "WDT Watchdog timer" 1169 depends on ISA 1170 ---help--- 1171 If you have a WDT500P or WDT501P watchdog board, say Y here, 1172 otherwise N. It is not possible to probe for this board, which means 1173 that you have to inform the kernel about the IO port and IRQ that 1174 is needed (you can do this via the io and irq parameters) 1175 1176 To compile this driver as a module, choose M here: the 1177 module will be called wdt. 1178 1179# 1180# PCI-based Watchdog Cards 1181# 1182 1183comment "PCI-based Watchdog Cards" 1184 depends on PCI 1185 1186config PCIPCWATCHDOG 1187 tristate "Berkshire Products PCI-PC Watchdog" 1188 depends on PCI 1189 ---help--- 1190 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1191 This card simply watches your kernel to make sure it doesn't freeze, 1192 and if it does, it reboots your computer after a certain amount of 1193 time. The card can also monitor the internal temperature of the PC. 1194 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1195 1196 To compile this driver as a module, choose M here: the 1197 module will be called pcwd_pci. 1198 1199 Most people will say N. 1200 1201config WDTPCI 1202 tristate "PCI-WDT500/501 Watchdog timer" 1203 depends on PCI 1204 ---help--- 1205 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1206 1207 If you have a PCI-WDT501 watchdog board then you can enable the 1208 temperature sensor by setting the type parameter to 501. 1209 1210 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1211 can do this via the tachometer parameter. Only do this if you have a 1212 fan tachometer actually set up. 1213 1214 To compile this driver as a module, choose M here: the 1215 module will be called wdt_pci. 1216 1217# 1218# USB-based Watchdog Cards 1219# 1220 1221comment "USB-based Watchdog Cards" 1222 depends on USB 1223 1224config USBPCWATCHDOG 1225 tristate "Berkshire Products USB-PC Watchdog" 1226 depends on USB 1227 ---help--- 1228 This is the driver for the Berkshire Products USB-PC Watchdog card. 1229 This card simply watches your kernel to make sure it doesn't freeze, 1230 and if it does, it reboots your computer after a certain amount of 1231 time. The card can also monitor the internal temperature of the PC. 1232 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1233 1234 To compile this driver as a module, choose M here: the 1235 module will be called pcwd_usb. 1236 1237 Most people will say N. 1238 1239endif # WATCHDOG 1240