arm: socfpga: misc: Probe ethernet GMAC from OF

The GMAC can now be probed from OF, so enable DM ethernet and remove the
old ad-hoc designware_initialize() invocation.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>

arch/arm/mach-socfpga/misc.c

@@ -82,9 +82,7 @@ int cpu_eth_init(bd_t *bis)
 	/* Release the EMAC controller from reset */
 	socfpga_per_reset(reset, 0);
 
-	/* initialize and register the emac */
-	return designware_initialize(CONFIG_EMAC_BASE,
-				     CONFIG_PHY_INTERFACE_MODE);
+	return 0;
 }
 #endif
 

configs/socfpga_cyclone5_defconfig

@@ -7,6 +7,7 @@ CONFIG_SPL=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_OF_CONTROL=y
 CONFIG_SPI_FLASH=y
+CONFIG_DM_ETH=y
 CONFIG_NETDEVICES=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_SPL_DM=y

configs/socfpga_socrates_defconfig

@@ -7,6 +7,7 @@ CONFIG_SPL=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_OF_CONTROL=y
 CONFIG_SPI_FLASH=y
+CONFIG_DM_ETH=y
 CONFIG_NETDEVICES=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_SPL_DM=y

include/configs/socfpga_arria5.h

@@ -49,7 +49,6 @@
 /* Ethernet on SoC (EMAC) */
 #if defined(CONFIG_CMD_NET)
 #define CONFIG_EMAC_BASE		SOCFPGA_EMAC1_ADDRESS
-#define CONFIG_PHY_INTERFACE_MODE	PHY_INTERFACE_MODE_RGMII
 
 /* PHY */
 #define CONFIG_PHY_MICREL

include/configs/socfpga_cyclone5.h

@@ -49,7 +49,6 @@
 /* Ethernet on SoC (EMAC) */
 #if defined(CONFIG_CMD_NET)
 #define CONFIG_EMAC_BASE		SOCFPGA_EMAC1_ADDRESS
-#define CONFIG_PHY_INTERFACE_MODE	PHY_INTERFACE_MODE_RGMII
 
 /* PHY */
 #define CONFIG_PHY_MICREL