stmmac: perform hw bus configuration

On some platforms it can be required a different
configuration of the bus. This can be done
by invoking the bus_setup. It is defined
for all the platforms that needs this kind of
configuration.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/stmmac/gmac.c

@@ -400,9 +400,6 @@ static void gmac_core_init(unsigned long ioaddr)
 	value |= GMAC_CORE_INIT;
 	writel(value, ioaddr + GMAC_CONTROL);
 
-	/* STBus Bridge Configuration */
-	/*writel(0xc5608, ioaddr + 0x00007000);*/
-
 	/* Freeze MMC counters */
 	writel(0x8, ioaddr + GMAC_MMC_CTRL);
 	/* Mask GMAC interrupts */

drivers/net/stmmac/stmmac_main.c

@@ -1067,6 +1067,9 @@ static int stmmac_open(struct net_device *dev)
 
 	/* Copy the MAC addr into the HW  */
 	priv->mac_type->ops->set_umac_addr(ioaddr, dev->dev_addr, 0);
+	/* If required, perform hw setup of the bus. */
+	if (priv->bus_setup)
+		priv->bus_setup(ioaddr);
 	/* Initialize the MAC Core */
 	priv->mac_type->ops->core_init(ioaddr);