[WATCHDOG] iTCO_wdt : correct status clearing
The iTCO_wdt code was not clearing the correct bits.
It now clears the timeout status bit and then the
SECOND_TO_STS bit and then the BOOT_STS bit.
Note: we should first clear the SECOND_TO_STS bit
before clearing the BOOT_STS bit.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 7548300..2b5409f 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -684,8 +684,9 @@
TCOBASE);
/* Clear out the (probably old) status */
- outb(0, TCO1_STS);
- outb(3, TCO2_STS);
+ outb(8, TCO1_STS); /* Clear the Time Out Status bit */
+ outb(2, TCO2_STS); /* Clear SECOND_TO_STS bit */
+ outb(4, TCO2_STS); /* Clear BOOT_STS bit */
/* Make sure the watchdog is not running */
iTCO_wdt_stop();