X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fchar%2Fwatchdog%2Fixp2000_wdt.c;h=0cfb9b9c4a4b2c47634cf329640b89651a6802ad;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=ab659d37b4d2bb4aa0dc50e932c512adea781e59;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/drivers/char/watchdog/ixp2000_wdt.c b/drivers/char/watchdog/ixp2000_wdt.c
index ab659d37b..0cfb9b9c4 100644
--- a/drivers/char/watchdog/ixp2000_wdt.c
+++ b/drivers/char/watchdog/ixp2000_wdt.c
@@ -30,11 +30,7 @@
 #include <asm/hardware.h>
 #include <asm/uaccess.h>
 
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-static int nowayout = 1;
-#else
-static int nowayout = 0;
-#endif
+static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned int heartbeat = 60;	/* (secs) Default is 1 minute */
 static unsigned long wdt_status;
 
@@ -162,7 +158,7 @@ ixp2000_wdt_release(struct inode *inode, struct file *file)
 	if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) {
 		wdt_disable();
 	} else {
-		printk(KERN_CRIT "WATCHDOG: Device closed unexpectdly - "
+		printk(KERN_CRIT "WATCHDOG: Device closed unexpectedly - "
 					"timer will not stop\n");
 	}
 
@@ -186,13 +182,18 @@ static struct file_operations ixp2000_wdt_fops =
 static struct miscdevice ixp2000_wdt_miscdev =
 {
 	.minor		= WATCHDOG_MINOR,
-	.name		= "IXP2000 Watchdog",
+	.name		= "watchdog",
 	.fops		= &ixp2000_wdt_fops,
 };
 
 static int __init ixp2000_wdt_init(void)
 {
-	wdt_tick_rate = (*IXP2000_T1_CLD * HZ)/ 256;;
+	if ((*IXP2000_PRODUCT_ID & 0x001ffef0) == 0x00000000) {
+		printk(KERN_INFO "Unable to use IXP2000 watchdog due to IXP2800 erratum #25.\n");
+		return -EIO;
+	}
+
+	wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256;
 
 	return misc_register(&ixp2000_wdt_miscdev);
 }