watchdog: sbc_fitpc2_wdt: fixed I/O operations order
Denis Turischev [Thu, 22 Apr 2010 16:50:03 +0000 (19:50 +0300)]
There are fitpc2 compatible boards that hang with existent i/o
operations order. Solution is to switch between writing to data
and command ports.

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/sbc_fitpc2_wdt.c

index 8d44c9b..2e44dd4 100644 (file)
@@ -45,10 +45,10 @@ static DEFINE_SPINLOCK(wdt_lock);
 
 static void wdt_send_data(unsigned char command, unsigned char data)
 {
-       outb(command, COMMAND_PORT);
-       msleep(100);
        outb(data, DATA_PORT);
        msleep(200);
+       outb(command, COMMAND_PORT);
+       msleep(100);
 }
 
 static void wdt_enable(void)