omap3evm: eth: split function setup_net_chip

In current implementation, the function sets up the ethernet
chip and resets it. The steps to reset depend upon the board
revision.

The patch moves the reset actions to new function reset_net_chip().

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
diff --git a/board/ti/evm/evm.c b/board/ti/evm/evm.c
index aaf3033..8f9f141 100644
--- a/board/ti/evm/evm.c
+++ b/board/ti/evm/evm.c
@@ -130,6 +130,9 @@
 #endif
 	omap3_evm_get_revision();
 
+#if defined(CONFIG_CMD_NET)
+	reset_net_chip();
+#endif
 	dieid_num_r();
 
 	return 0;
@@ -153,7 +156,6 @@
  */
 static void setup_net_chip(void)
 {
-	struct gpio *gpio3_base = (struct gpio *)OMAP34XX_GPIO3_BASE;
 	struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
 
 	/* Configure GPMC registers */
@@ -172,6 +174,14 @@
 	/* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
 	writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
 		&ctrl_base->gpmc_nadv_ale);
+}
+
+/**
+ * Reset the ethernet chip.
+ */
+static void reset_net_chip(void)
+{
+	struct gpio *gpio3_base = (struct gpio *)OMAP34XX_GPIO3_BASE;
 
 	/* Make GPIO 64 as output pin */
 	writel(readl(&gpio3_base->oe) & ~(GPIO0), &gpio3_base->oe);