diff --git a/src/include/smp/start_stop.h b/src/include/smp/start_stop.h
deleted file mode 100644
index 84fd331ccc..0000000000
--- a/src/include/smp/start_stop.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef SMP_START_STOP_H
-#define SMP_START_STOP_H
-
-#if CONFIG_SMP == 1
-#include <smp/atomic.h>
-unsigned long this_processors_id(void);
-int processor_index(unsigned long processor_id);
-void stop_cpu(unsigned long processor_id);
-int start_cpu(unsigned long processor_id);
-void startup_other_cpus(unsigned long *processor_map);
-#else
-#define this_processors_id()	0
-#define startup_other_cpus(p)	do {} while(0)
-#define processor_index(p) 0
-#endif
-
-#endif /* SMP_START_STOP_H */