#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/fixmap.h>
-#include "io_ports.h"
+#include <asm/i8253.h>
-extern spinlock_t i8253_lock;
+#include "io_ports.h"
/* Number of usecs that the last interrupt was delayed */
static int delay_at_last_interrupt;