diff --git a/mkconfig b/mkconfig
index daa1810..801f921 100755
--- a/mkconfig
+++ b/mkconfig
@@ -161,6 +161,14 @@
 	echo "#define CONFIG_${i}" >>config.h ;
 done
 
+echo "#define CONFIG_SYS_ARCH  \"${arch}\""  >> config.h
+echo "#define CONFIG_SYS_CPU   \"${cpu}\""   >> config.h
+echo "#define CONFIG_SYS_BOARD \"${board}\"" >> config.h
+
+[ "${vendor}" ] && echo "#define CONFIG_SYS_VENDOR \"${vendor}\"" >> config.h
+
+[ "${soc}"    ] && echo "#define CONFIG_SYS_SOC    \"${soc}\""    >> config.h
+
 cat << EOF >> config.h
 #define CONFIG_BOARDDIR board/$BOARDDIR
 #include <config_cmd_defaults.h>