ARM: DaVinci: Fix interrupt related issues in DM646x EMAC start/stop

Disables the DM646x EMAC interrupts in the initialization of EMAC driver.
DM646x EMAC interrupts were not being freed correctly on EMAC stop, this has
been resolved in EMAC device stop function.
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

drivers/net/davinci_emac.c

@@ -2252,7 +2252,7 @@ static int emac_hw_enable(struct emac_priv *priv)
 		cpu_relax();
 
 	/* Disable interrupt & Set pacing for more interrupts initially */
-	emac_ctrl_write(EMAC_CTRL_EWCTL, 0x0);
+	emac_int_disable(priv);
 
 	/* Set speed and duplex mode */
 	priv->duplex = EMAC_DUPLEX_UNKNOWN;
@@ -2603,6 +2603,9 @@ rollback:
  */
 static int emac_dev_stop(struct net_device *ndev)
 {
+	struct resource *res;
+	int i = 0;
+	int irq_num;
 	struct emac_priv *priv = netdev_priv(ndev);
 
 	/* inform the upper layers. */
@@ -2622,7 +2625,12 @@ static int emac_dev_stop(struct net_device *ndev)
 	emac_write(EMAC_SOFTRESET, 1);
 
 	/* Free IRQ */
-	free_irq(ndev->irq, priv->ndev);
+	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) {
+		for (irq_num = res->start; irq_num <= res->end; irq_num++)
+			free_irq(irq_num, priv->ndev);
+		i++;
+	}
+
 	if (netif_msg_drv(priv))
 		dev_notice(EMAC_DEV, "DaVinci EMAC: %s stopped\n", ndev->name);