diff --git a/src/config/Options.lb b/src/config/Options.lb
index 541592cf23..fdd87e56b7 100644
--- a/src/config/Options.lb
+++ b/src/config/Options.lb
@@ -106,6 +106,11 @@ define HOSTCC
 	export always
 	comment "Host C Compiler"
 end
+define CPU_OPT
+	default none
+	export used
+	comment "Additional per-cpu CFLAGS"
+end
 define OBJCOPY
 	default "$(CROSS_COMPILE)objcopy"
 	export always
@@ -223,7 +228,13 @@ define _ROMBASE
 	default {PAYLOAD_SIZE}
 	format "0x%x"
 	export always
-	comment "Base of ROM"
+	comment "Base address of LinuxBIOS in ROM"
+end
+define _RESET
+	default {_ROMBASE}
+	format "0x%x"
+	export always
+	comment "Hardware reset vector address"
 end
 define STACK_SIZE
 	default 0x2000
@@ -241,7 +252,7 @@ define _RAMBASE
 	default 0x4000
 	format "0x%x"
 	export always
-	comment "Base address of RAM"
+	comment "Base address of LinuxBIOS in RAM"
 end
 define USE_CACHE_RAM
 	default 0
@@ -380,7 +391,11 @@ define FINAL_MAINBOARD_FIXUP
 	export used
 	comment "Do final mainboard fixups"
 end
-
+define CONFIG_SYS_CLK_FREQ
+	default none
+	export used
+	comment "System clock frequency in MHz"
+end
 
 ###############################################
 # SMP options