diff --git a/include/configs/mgcoge2un.h b/include/configs/mgcoge2un.h
index 9f5464b..d3c7bdc 100644
--- a/include/configs/mgcoge2un.h
+++ b/include/configs/mgcoge2un.h
@@ -44,12 +44,14 @@
 
 #define CONFIG_HOSTNAME			mgcoge2un
 
+#define KM_IVM_BUS	"pca9547:70:9" /* I2C2 (Mux-Port 1)*/
+#define KM_ENV_BUS	"pca9547:70:d" /* I2C2 (Mux-Port 5)*/
+
 /*
  * Default environment variables
  */
 #define CONFIG_EXTRA_ENV_SETTINGS					\
 	CONFIG_KM_DEF_ENV						\
-	"memsize=0x8000000\0"						\
 	"newenv=setenv addr 0x100000 && "				\
 		"i2c dev 1; mw.b ${addr} 0 4 && "			\
 		"eeprom write " xstr(CONFIG_SYS_DEF_EEPROM_ADDR)	\
@@ -57,7 +59,7 @@
 		"eeprom write " xstr(CONFIG_SYS_DEF_EEPROM_ADDR)	\
 		" ${addr} " xstr(CONFIG_ENV_OFFSET_REDUND) " 4\0"	\
 	"rootpath=/opt/eldk/arm\0"					\
-	"EEprom_ivm=pca9547:70:9\0"					\
+	"EEprom_ivm=" KM_IVM_BUS "\0"					\
 	""
 
 #endif /* _CONFIG_MGCOGE2UN_H */