Moved initialization of GRETH Ethernet driver to CPU directory

Added a cpu_eth_init() function to leon2/leon3 CPU directories and
removed code from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

cpu/leon2/cpu.c

@@ -56,3 +56,12 @@ int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 }
 
 /* ------------------------------------------------------------------------- */
+
+extern int greth_initialize(bd_t *bis);
+
+#ifdef CONFIG_GRETH
+int cpu_eth_init(bd_t *bis)
+{
+	return greth_initialize(bis);
+}
+#endif

cpu/leon3/cpu.c

@@ -65,3 +65,11 @@ u64 flash_read64(void *addr)
 }
 
 /* ------------------------------------------------------------------------- */
+extern int greth_initialize(bd_t *bis);
+
+#ifdef CONFIG_GRETH
+int cpu_eth_init(bd_t *bis)
+{
+	return greth_initialize(bis);
+}
+#endif

drivers/net/greth.c

@@ -657,5 +657,5 @@ int greth_initialize(bd_t * bis)
 	/* set and remember MAC address */
 	greth_set_hwaddr(greth, addr);
 
-	return 1;
+	return 0;
 }

net/eth.c

@@ -69,7 +69,6 @@ extern int uli526x_initialize(bd_t *);
 extern int npe_initialize(bd_t *);
 extern int uec_initialize(int);
 extern int bfin_EMAC_initialize(bd_t *);
-extern int greth_initialize(bd_t *);
 extern int at91sam9_eth_initialize(bd_t *);
 
 #ifdef CONFIG_API
@@ -267,9 +266,6 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_BF537)
 	bfin_EMAC_initialize(bis);
 #endif
-#if defined(CONFIG_GRETH)
-	greth_initialize(bis);
-#endif
 #if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
     defined(CONFIG_AT91SAM9263)
 	at91sam9_eth_initialize(bis);