[WATCHDOG] Add a watchdog driver based on the CS5535/CS5536 MFGPT timers

Add a watchdog timer based on the MFGPT timers in the CS5535/CS5536
companion chips to the AMD Geode GX and LX processors.  Only caveat
is that the BIOS must provide at least a one free timer, and most
do not.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 254d115..ccb78f6 100644 (file)
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -295,6 +295,19 @@ config ALIM7101_WDT
 
          Most people will say N.
 
+config GEODE_WDT
+       tristate "AMD Geode CS5535/CS5536 Watchdog"
+       depends on MGEODE_LX
+       help
+         This driver enables a watchdog capability built into the
+         CS5535/CS5536 companion chips for the AMD Geode GX and LX
+         processors.  This watchdog watches your kernel to make sure
+         it doesn't freeze, and if it does, it reboots your computer after
+         a certain amount of time.
+
+         You can compile this driver directly into the kernel, or use
+         it as a module.  The module will be called geodewdt.
+
 config SC520_WDT
        tristate "AMD Elan SC520 processor Watchdog"
        depends on X86

diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index f3fb170..25b352b 100644 (file)
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
 obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
 obj-$(CONFIG_ALIM1535_WDT) += alim1535_wdt.o
 obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
+obj-$(CONFIG_GEODE_WDT) += geodewdt.o
 obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
 obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
 obj-$(CONFIG_IB700_WDT) += ib700wdt.o

diff --cc drivers/watchdog/geodewdt.c
Simple merge