+/* we can't use the normal udelay here, since it enables external interrupts */
+
+static void udelay_reset(unsigned long usecs)
+{
+ uint64_t start_cc, end_cc;
+
+ asm volatile ("STCK %0" : "=m" (start_cc));
+ do {
+ cpu_relax();
+ asm volatile ("STCK %0" : "=m" (end_cc));
+ } while (((end_cc - start_cc)/4096) < usecs);
+}
+
+static int