diff --git a/include/configs/actux1.h b/include/configs/actux1.h
index 58d56ee..adbc399 100644
--- a/include/configs/actux1.h
+++ b/include/configs/actux1.h
@@ -39,6 +39,7 @@
 #define CONFIG_DISPLAY_CPUINFO		1
 #define CONFIG_DISPLAY_BOARDINFO	1
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_SYS_IXP425_CONSOLE		IXP425_UART2
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_BOOTDELAY		3
diff --git a/include/configs/actux2.h b/include/configs/actux2.h
index 6f59a51..4c579eb 100644
--- a/include/configs/actux2.h
+++ b/include/configs/actux2.h
@@ -32,6 +32,7 @@
 #define CONFIG_DISPLAY_CPUINFO		1
 #define CONFIG_DISPLAY_BOARDINFO	1
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_SYS_IXP425_CONSOLE		IXP425_UART2
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_BOOTDELAY		5
diff --git a/include/configs/actux3.h b/include/configs/actux3.h
index a7bb38c..694f522 100644
--- a/include/configs/actux3.h
+++ b/include/configs/actux3.h
@@ -32,6 +32,7 @@
 #define CONFIG_DISPLAY_CPUINFO		1
 #define CONFIG_DISPLAY_BOARDINFO	1
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_SYS_IXP425_CONSOLE		IXP425_UART2
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_BOOTDELAY		3
diff --git a/include/configs/actux4.h b/include/configs/actux4.h
index f2b701f..cdc9956 100644
--- a/include/configs/actux4.h
+++ b/include/configs/actux4.h
@@ -32,6 +32,7 @@
 #define CONFIG_DISPLAY_CPUINFO		1
 #define CONFIG_DISPLAY_BOARDINFO	1
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_SYS_IXP425_CONSOLE		IXP425_UART1
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_BOOTDELAY		3
diff --git a/include/configs/ixdp425.h b/include/configs/ixdp425.h
index edebb40..70f3987 100644
--- a/include/configs/ixdp425.h
+++ b/include/configs/ixdp425.h
@@ -135,6 +135,7 @@
 /*
  * select serial console configuration
  */
+#define CONFIG_IXP_SERIAL
 #define CONFIG_SYS_IXP425_CONSOLE	IXP425_UART1   /* we use UART1 for console */
 
 /*
diff --git a/include/configs/ixdpg425.h b/include/configs/ixdpg425.h
index 528bccd..193008e 100644
--- a/include/configs/ixdpg425.h
+++ b/include/configs/ixdpg425.h
@@ -72,6 +72,7 @@
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_BAUDRATE         115200
 #define CONFIG_SYS_IXP425_CONSOLE	IXP425_UART1   /* we use UART1 for console */
 
diff --git a/include/configs/pdnb3.h b/include/configs/pdnb3.h
index f8aac1a..4da401f 100644
--- a/include/configs/pdnb3.h
+++ b/include/configs/pdnb3.h
@@ -68,6 +68,7 @@
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 
+#define CONFIG_IXP_SERIAL
 #define CONFIG_BAUDRATE         115200
 #define CONFIG_SYS_IXP425_CONSOLE	IXP425_UART1   /* we use UART1 for console */