diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 8f0a897..b4612c1 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -9,6 +9,7 @@
 #include <common.h>
 #include <linux/bitops.h>
 #include <phy.h>
+#include <linux/delay.h>
 
 #define PHY_RTL8211x_FORCE_MASTER BIT(1)
 #define PHY_RTL8211E_PINE64_GIGABIT_FIX BIT(2)