U-Boot version environment variable "ver" added (CONFIG_VERSION_VARIABLE).

README

@@ -620,6 +620,13 @@ The following options need to be configured:
 		SIU Watchdog feature is enabled in the SYPCR
 		register.
 
+- U-Boot Version:
+		CONFIG_VERSION_VARIABLE
+		If this variable is defined, an environment variable
+		named "ver" is created by U-Boot showing the U-Boot
+		version as printed by the "version" command.
+		This variable is readonly.
+
 - Real-Time Clock:
 
 		When CFG_CMD_DATE is selected, the type of the RTC
@@ -1973,6 +1980,13 @@ the board). U-Boot refuses to delete or overwrite these variables
 once they have been set once.
 
 
+Further special Environment Variables:
+
+  ver		- Contains the U-Boot version string as printed
+		  with the "version" command. This variable is
+		  readonly (see CONFIG_VERSION_VARIABLE).
+
+
 Please note that changes to some configuration parameters may take
 only effect after the next boot (yes, that's just like Windoze :-).