diff -r 94af7e017780 Makefile
--- a/Makefile	Wed Dec 28 00:46:17 2011 +0200
+++ b/Makefile	Wed Dec 28 02:27:14 2011 +0100
@@ -51,6 +51,11 @@
 
 KERNCONF_MAKEOPTIONS+=	"KERNLOADADDR=${KERNCONF_KERNLOADADDR}"
 
+# resolve board flash size with trailing M or K
+.if defined(BOARD_FLASH_SIZE)
+BOARD_FLASH_SIZE!=echo "${BOARD_FLASH_SIZE}" | sed -e 's/0x/ibase=16; /' -e 's/K/ * 1024/' -e 's/M/ * 1024 * 1024/' | bc
+.endif
+
 .if !defined(TARGET_PROFILES) || empty(TARGET_PROFILES)
 # if we have flash and it size less than 8M assign profile xSMALL_
 .if defined(BOARD_FLASH_SIZE) && !empty(BOARD_FLASH_SIZE) && ${BOARD_FLASH_SIZE} < 8388608