diff --git a/include/configs/ls1021atsn.h b/include/configs/ls1021atsn.h
index f76d5a1..58c2d97 100644
--- a/include/configs/ls1021atsn.h
+++ b/include/configs/ls1021atsn.h
@@ -105,7 +105,7 @@
 
 /* I2C */
 #if !CONFIG_IS_ENABLED(DM_I2C)
-#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_LEGACY
 #else
 #define CONFIG_I2C_SET_DEFAULT_BUS_NUM
 #define CONFIG_I2C_DEFAULT_BUS_NUMBER 0