[WATCHDOG] iTCO_wdt (Intel TCO Timer) driver

Hardware driver for the intel TCO timer based watchdog devices.
These drivers are included in the Intel 82801 I/O Controller
Hub family (from ICH0 up to ICH7) and in the Intel 6300ESB
controller hub.

This driver will replace the i8xx_tco.c driver.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig
index 06f3fa2fe877..89e46d6dfc4e 100644
--- a/drivers/char/watchdog/Kconfig
+++ b/drivers/char/watchdog/Kconfig
@@ -316,6 +316,27 @@ config I8XX_TCO
           To compile this driver as a module, choose M here: the
           module will be called i8xx_tco.
 
+config ITCO_WDT
+        tristate "Intel TCO Timer/Watchdog (EXPERIMENTAL)"
+        depends on WATCHDOG && (X86 || IA64) && PCI && EXPERIMENTAL
+        ---help---
+          Hardware driver for the intel TCO timer based watchdog devices.
+          These drivers are included in the Intel 82801 I/O Controller
+          Hub family 'from ICH0 up to ICH7) and in the Intel 6300ESB
+          controller hub.
+
+          The TCO (Total Cost of Ownership) timer is a watchdog timer
+          that will reboot the machine after its second expiration. The
+          expiration time can be configured with the "heartbeat" parameter.
+
+          On some motherboards the driver may fail to reset the chipset's
+          NO_REBOOT flag which prevents the watchdog from rebooting the
+          machine. If this is the case you will get a kernel message like
+          "failed to reset NO_REBOOT flag, reboot disabled by hardware".
+
+          To compile this driver as a module, choose M here: the
+          module will be called iTCO_wdt.
+
 config SC1200_WDT
         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
         depends on WATCHDOG && X86