diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index cab0a00..cf03778 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -144,8 +144,8 @@
 #endif
 
 	/* Initialize stack pointer */
-	sp.l = _init_thread_union;
-	sp.h = _init_thread_union;
+	sp.l = _init_thread_union + THREAD_SIZE;
+	sp.h = _init_thread_union + THREAD_SIZE;
 	fp = sp;
 	usp = sp;
 
@@ -257,12 +257,7 @@
 	R0 = R7;
 	call _cmdline_init;
 
-	/* Load the current thread pointer and stack */
-	p1 = THREAD_SIZE + 4 (z);	/* +4 is for reti loading */
-	sp = sp + p1;
-	usp = sp;
-	fp = sp;
-	sp += -12;
+	sp += -12 + 4; /* +4 is for reti loading above */
 	call _init_pda
 	sp += 12;
 	jump.l _start_kernel;