net: Move common init into a new eth_common.c file

Only half of the init is actually common. Move that part into a new common
file and call it from driver-model and legacy code. More common functions
will be added in future patches.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

net/Makefile

@@ -13,6 +13,7 @@ obj-$(CONFIG_CMD_NET)  += bootp.o
 obj-$(CONFIG_CMD_CDP)  += cdp.o
 obj-$(CONFIG_CMD_DNS)  += dns.o
 obj-$(CONFIG_CMD_NET)  += eth.o
+obj-$(CONFIG_CMD_NET)  += eth_common.o
 obj-$(CONFIG_CMD_LINK_LOCAL) += link_local.o
 obj-$(CONFIG_CMD_NET)  += net.o
 obj-$(CONFIG_CMD_NFS)  += nfs.o

net/eth.c

@@ -16,6 +16,7 @@
 #include <asm/errno.h>
 #include <dm/device-internal.h>
 #include <dm/uclass-internal.h>
+#include "eth_internal.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -85,34 +86,6 @@ static int __def_eth_init(bd_t *bis)
 int cpu_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
 int board_eth_init(bd_t *bis) __attribute__((weak, alias("__def_eth_init")));
 
-static void eth_common_init(void)
-{
-	bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
-#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
-	miiphy_init();
-#endif
-
-#ifdef CONFIG_PHYLIB
-	phy_init();
-#endif
-
-#ifndef CONFIG_DM_ETH
-	/*
-	 * If board-specific initialization exists, call it.
-	 * If not, call a CPU-specific one
-	 */
-	if (board_eth_init != __def_eth_init) {
-		if (board_eth_init(gd->bd) < 0)
-			printf("Board Net Initialization Failed\n");
-	} else if (cpu_eth_init != __def_eth_init) {
-		if (cpu_eth_init(gd->bd) < 0)
-			printf("CPU Net Initialization Failed\n");
-	} else {
-		printf("Net Initialization Skipped\n");
-	}
-#endif
-}
-
 #ifdef CONFIG_DM_ETH
 /**
  * struct eth_device_priv - private structure for each Ethernet device
@@ -865,6 +838,19 @@ int eth_initialize(void)
 	eth_devices = NULL;
 	eth_current = NULL;
 	eth_common_init();
+	/*
+	 * If board-specific initialization exists, call it.
+	 * If not, call a CPU-specific one
+	 */
+	if (board_eth_init != __def_eth_init) {
+		if (board_eth_init(gd->bd) < 0)
+			printf("Board Net Initialization Failed\n");
+	} else if (cpu_eth_init != __def_eth_init) {
+		if (cpu_eth_init(gd->bd) < 0)
+			printf("CPU Net Initialization Failed\n");
+	} else {
+		printf("Net Initialization Skipped\n");
+	}
 
 	if (!eth_devices) {
 		puts("No ethernet found.\n");

net/eth_common.c

+/*
+ * (C) Copyright 2001-2015
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Joe Hershberger, National Instruments
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <miiphy.h>
+#include "eth_internal.h"
+
+void eth_common_init(void)
+{
+	bootstage_mark(BOOTSTAGE_ID_NET_ETH_START);
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
+	miiphy_init();
+#endif
+
+#ifdef CONFIG_PHYLIB
+	phy_init();
+#endif
+}

net/eth_internal.h

+/*
+ * (C) Copyright 2001-2015
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Joe Hershberger, National Instruments
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ETH_INTERNAL_H
+#define __ETH_INTERNAL_H
+
+/* Do init that is common to driver model and legacy networking */
+void eth_common_init(void);
+
+#endif