1) extract /opt/ti/ccsv5/tools/compiler/tms470/lib/rtssrc.zip
2) copy boot.asm into your Code Composer Studio project
3) apply following patch on boot.asm

--- a/boot.asm	2011-10-20 05:36:52.000000000 +0200
+++ b/boot.asm	2011-11-17 23:22:02.339068102 +0100
@@ -262,11 +262,11 @@
 	.endif
 
         ;*------------------------------------------------------
-	;* SET TO USER MODE
+	;* SET TO PRIV MODE
         ;*------------------------------------------------------
         MRS     r0, cpsr
         BIC     r0, r0, #0x1F  ; CLEAR MODES
-        ORR     r0, r0, #0x10  ; SET USER MODE
+        ORR     r0, r0, #0x1F  ; SET PRIV MODE
         MSR     cpsr_cf, r0
 
         ;*------------------------------------------------------

4) When debugging verify that Registers - Core Registers - CPSR - M is set to 11111