diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 75ec9df5318b57ee81db41b297f0ce452c13a94d..3287222cba34f12889c464c5b2cb0970542dba61 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -11,7 +11,7 @@
  */
 #define __NR_restart_syscall	  0
 #define __NR_exit		  1
-#define __NR_fork		  2
+				/* 2 __NR_fork not supported on nommu */
 #define __NR_read		  3
 #define __NR_write		  4
 #define __NR_open		  5
diff --git a/arch/blackfin/kernel/entry.S b/arch/blackfin/kernel/entry.S
index 686478f5f66b90402ffad203bce6d2dc37b78e13..f33792cc1a0d8a9b9cd553d379726886f5c3c22e 100644
--- a/arch/blackfin/kernel/entry.S
+++ b/arch/blackfin/kernel/entry.S
@@ -64,16 +64,6 @@ ENTRY(_ret_from_fork)
 	jump (p0);
 ENDPROC(_ret_from_fork)
 
-ENTRY(_sys_fork)
-	r0 = -EINVAL;
-#if (ANOMALY_05000371)
-	nop;
-	nop;
-	nop;
-#endif
-	rts;
-ENDPROC(_sys_fork)
-
 ENTRY(_sys_vfork)
 	r0 = sp;
 	r0 += 24;
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 84b5e3dbbcc85ea595547ab06d101060b9fe7a69..80aa2535e2c9f2be80c6f78d6a49c832f7e8be3d 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1377,7 +1377,7 @@ END(_ex_table)
 ENTRY(_sys_call_table)
 	.long _sys_restart_syscall	/* 0 */
 	.long _sys_exit
-	.long _sys_fork
+	.long _sys_ni_syscall	/* fork */
 	.long _sys_read
 	.long _sys_write
 	.long _sys_open		/* 5 */