* Get (mostly) rid of CFG_MONITOR_LEN definition; compute real length
  instead CFG_MONITOR_LEN is now only used to determine  _at_compile_
  _time_  (!) if the environment is embedded within the U-Boot image,
  or in a separate flash sector.

* Cleanup CFG_DER #defines in config files (wd maintained only)
diff --git a/board/pm826/flash.c b/board/pm826/flash.c
index 4d5147b..770a46d 100644
--- a/board/pm826/flash.c
+++ b/board/pm826/flash.c
@@ -133,7 +133,7 @@
 # if CFG_MONITOR_BASE >= CFG_FLASH0_BASE
 	flash_protect (FLAG_PROTECT_SET,
 		       CFG_MONITOR_BASE,
-		       CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[0]
+		       CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]
 	);
 # endif
 #endif	/* CONFIG_BOOT_ROM */