socfpga: initialize designware ethernet

Enable initialization fo designware ethernet controller. With this
patch, ethernet works in my configuration, provided I set ethernet
address in the environment.

Signed-off-by: Pavel Machek <pavel@denx.de>

arch/arm/cpu/armv7/socfpga/misc.c

@@ -6,6 +6,8 @@
 
 #include <common.h>
 #include <asm/io.h>
+#include <miiphy.h>
+#include <netdev.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -38,3 +40,18 @@ int misc_init_r(void)
 {
 	return 0;
 }
+
+
+/*
+ * DesignWare Ethernet initialization
+ */
+int cpu_eth_init(bd_t *bis)
+{
+#if !defined(CONFIG_SOCFPGA_VIRTUAL_TARGET) && !defined(CONFIG_SPL_BUILD)
+       /* initialize and register the emac */
+	return designware_initialize(CONFIG_EMAC_BASE,
+				     CONFIG_PHY_INTERFACE_MODE);
+#else
+	return 0;
+#endif
+}

arch/arm/include/asm/arch-socfpga/socfpga_base_addrs.h

@@ -16,5 +16,7 @@
 #define SOCFPGA_RSTMGR_ADDRESS 0xffd05000
 #define SOCFPGA_SYSMGR_ADDRESS 0xffd08000
 #define SOCFPGA_SCANMGR_ADDRESS 0xfff02000
+#define SOCFPGA_EMAC0_ADDRESS 0xff700000
+#define SOCFPGA_EMAC1_ADDRESS 0xff702000
 
 #endif /* _SOCFPGA_BASE_ADDRS_H_ */