net: gem: Extract phy init code

Move phy init code out of zynq_gem_init. DM drivers are normally calling
this code from probe function.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

drivers/net/zynq_gem.c

@@ -310,15 +310,10 @@ static int zynq_gem_setup_mac(struct eth_device *dev)
 	return 0;
 }
 
-static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
+static int zynq_phy_init(struct eth_device *dev)
 {
-	u32 i;
 	int ret;
-	unsigned long clk_rate = 0;
-	struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase;
 	struct zynq_gem_priv *priv = dev->priv;
-	struct emac_bd *dummy_tx_bd = &priv->tx_bd[TX_FREE_DESC];
-	struct emac_bd *dummy_rx_bd = &priv->tx_bd[TX_FREE_DESC + 2];
 	const u32 supported = SUPPORTED_10baseT_Half |
 			SUPPORTED_10baseT_Full |
 			SUPPORTED_100baseT_Half |
@@ -326,6 +321,33 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 			SUPPORTED_1000baseT_Half |
 			SUPPORTED_1000baseT_Full;
 
+	ret = phy_detection(dev);
+	if (ret) {
+		printf("GEM PHY init failed\n");
+		return ret;
+	}
+
+	priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev,
+				   priv->interface);
+
+	priv->phydev->supported = supported | ADVERTISED_Pause |
+				  ADVERTISED_Asym_Pause;
+	priv->phydev->advertising = priv->phydev->supported;
+	phy_config(priv->phydev);
+
+	return 0;
+}
+
+static int zynq_gem_init(struct eth_device *dev, bd_t *bis)
+{
+	u32 i;
+	int ret;
+	unsigned long clk_rate = 0;
+	struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase;
+	struct zynq_gem_priv *priv = dev->priv;
+	struct emac_bd *dummy_tx_bd = &priv->tx_bd[TX_FREE_DESC];
+	struct emac_bd *dummy_rx_bd = &priv->tx_bd[TX_FREE_DESC + 2];
+
 	if (!priv->init) {
 		/* Disable all interrupts */
 		writel(0xFFFFFFFF, &regs->idr);
@@ -387,19 +409,10 @@ static int zynq_gem_init(struct eth_device *dev, bd_t * bis)
 		priv->init++;
 	}
 
-	ret = phy_detection(dev);
-	if (ret) {
-		printf("GEM PHY init failed\n");
+	ret = zynq_phy_init(dev);
+	if (ret)
 		return ret;
-	}
-
-	priv->phydev = phy_connect(priv->bus, priv->phyaddr, dev,
-				   priv->interface);
 
-	priv->phydev->supported = supported | ADVERTISED_Pause |
-				  ADVERTISED_Asym_Pause;
-	priv->phydev->advertising = priv->phydev->supported;
-	phy_config(priv->phydev);
 	phy_startup(priv->phydev);
 
 	if (!priv->phydev->link) {