imx6: isiotmx6ul: Add FEC support

Add FEC support for Engicam Is.IoT MX6UL module.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

arch/arm/cpu/armv7/mx6/Kconfig

@@ -246,6 +246,7 @@ config TARGET_MX6UL_ISIOT
 	select MX6UL
 	select OF_CONTROL
 	select DM
+	select DM_ETH
 	select DM_GPIO
 	select DM_I2C
 	select DM_MMC

configs/imx6ul_isiot_mmc_defconfig

@@ -23,6 +23,8 @@ CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_EXT4=y
@@ -32,6 +34,7 @@ CONFIG_CMD_FS_GENERIC=y
 # CONFIG_BLK is not set
 CONFIG_SYS_I2C_MXC=y
 # CONFIG_DM_MMC_OPS is not set
+CONFIG_FEC_MXC=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y
 CONFIG_MXC_UART=y

include/configs/imx6ul_isiot.h

@@ -128,6 +128,16 @@
 # define CONFIG_SYS_FSL_ESDHC_ADDR	0
 #endif
 
+/* Ethernet */
+#ifdef CONFIG_FEC_MXC
+# define CONFIG_FEC_MXC_PHYADDR		0
+# define CONFIG_FEC_XCV_TYPE		RMII
+
+# define CONFIG_MII
+# define CONFIG_PHYLIB
+# define CONFIG_PHY_SMSC
+#endif
+
 /* SPL */
 #ifdef CONFIG_SPL
 # define CONFIG_SPL_MMC_SUPPORT