diff --git a/Makefile b/Makefile
index 1e256698f0..d8daa89502 100644
--- a/Makefile
+++ b/Makefile
@@ -2520,25 +2520,11 @@ P2020DS_36BIT_config \
 P2020DS_config:		unconfig
 	@$(MKCONFIG) -t $(@:_config=) P2020DS ppc mpc85xx p2020ds freescale
 
-P1011RDB_config:	unconfig
-	@mkdir -p $(obj)include
-	@echo "#define CONFIG_P1011" >>$(obj)include/config.h ;
-	@$(MKCONFIG) -a P1_P2_RDB  ppc mpc85xx p1_p2_rdb freescale
-
-P1020RDB_config:	unconfig
-	@mkdir -p $(obj)include
-	@echo "#define CONFIG_P1020" >>$(obj)include/config.h ;
-	@$(MKCONFIG) -a P1_P2_RDB  ppc mpc85xx p1_p2_rdb freescale
-
-P2010RDB_config:	unconfig
-	@mkdir -p $(obj)include
-	@echo "#define CONFIG_P2010" >>$(obj)include/config.h ;
-	@$(MKCONFIG) -a P1_P2_RDB  ppc mpc85xx p1_p2_rdb freescale
-
+P1011RDB_config	\
+P1020RDB_config	\
+P2010RDB_config \
 P2020RDB_config:	unconfig
-	@mkdir -p $(obj)include
-	@echo "#define CONFIG_P2020" >>$(obj)include/config.h ;
-	@$(MKCONFIG) -a P1_P2_RDB  ppc mpc85xx p1_p2_rdb freescale
+	@$(MKCONFIG) -t $(@:_config=) P1_P2_RDB ppc mpc85xx p1_p2_rdb freescale
 
 PM854_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc mpc85xx pm854
diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h
index 6d44d6c8dd..8e97ad0681 100644
--- a/include/configs/P1_P2_RDB.h
+++ b/include/configs/P1_P2_RDB.h
@@ -30,6 +30,19 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#ifdef CONFIG_MK_P1011RDB
+#define CONFIG_P1011
+#endif
+#ifdef CONFIG_MK_P1020RDB
+#define CONFIG_P1020
+#endif
+#ifdef CONFIG_MK_P2010RDB
+#define CONFIG_P2010
+#endif
+#ifdef CONFIG_MK_P2020RDB
+#define CONFIG_P2020
+#endif
+
 /* High Level Configuration Options */
 #define CONFIG_BOOKE		1	/* BOOKE */
 #define CONFIG_E500		1	/* BOOKE e500 family */