diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index 3bef3b2..5a88371 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -1073,17 +1073,29 @@
 static void
 dm9000_read_eeprom(board_info_t *db, int offset, u8 *to)
 {
+	unsigned long flags;
+
 	mutex_lock(&db->addr_lock);
 
+	spin_lock_irqsave(&db->lock, flags);
+
 	iow(db, DM9000_EPAR, offset);
 	iow(db, DM9000_EPCR, EPCR_ERPRR);
+
+	spin_unlock_irqrestore(&db->lock, flags);
+
 	mdelay(8);		/* according to the datasheet 200us should be enough,
 				   but it doesn't work */
+
+	spin_lock_irqsave(&db->lock, flags);
+
 	iow(db, DM9000_EPCR, 0x0);
 
 	to[0] = ior(db, DM9000_EPDRL);
 	to[1] = ior(db, DM9000_EPDRH);
 
+	spin_unlock_irqrestore(&db->lock, flags);
+
 	mutex_unlock(&db->addr_lock);
 }
 
@@ -1093,14 +1105,22 @@
 static void
 dm9000_write_eeprom(board_info_t *db, int offset, u8 *data)
 {
+	unsigned long flags;
+
 	mutex_lock(&db->addr_lock);
 
+	spin_lock_irqsave(&db->lock, flags);
 	iow(db, DM9000_EPAR, offset);
 	iow(db, DM9000_EPDRH, data[1]);
 	iow(db, DM9000_EPDRL, data[0]);
 	iow(db, DM9000_EPCR, EPCR_WEP | EPCR_ERPRW);
+	spin_unlock_irqrestore(&db->lock, flags);
+
 	mdelay(8);		/* same shit */
+
+	spin_lock_irqsave(&db->lock, flags);
 	iow(db, DM9000_EPCR, 0);
+	spin_unlock_irqrestore(&db->lock, flags);
 
 	mutex_unlock(&db->addr_lock);
 }