diff --git a/include/configs/stm32f746-disco.h b/include/configs/stm32f746-disco.h
index 735ade6b9eedd5783cae0a14e9e9d798ff439cea..d705830804e2666b8948e37d6e9d4a16705682e4 100644
--- a/include/configs/stm32f746-disco.h
+++ b/include/configs/stm32f746-disco.h
@@ -44,6 +44,7 @@
 #define CONFIG_DW_GMAC_DEFAULT_DMA_PBL	(8)
 #define CONFIG_DW_ALTDESCRIPTOR
 #define CONFIG_MII
+#define CONFIG_PHY_SMSC
 
 #define CONFIG_STM32_HSE_HZ		25000000
 #define CONFIG_SYS_CLK_FREQ		200000000 /* 200 MHz */