+/*
+ * sdelay() - simple spin loop.
+ *
+ * Will delay execution by roughly (@loops * 2) cycles.
+ * This is necessary to be used before timers are accessible.
+ *
+ * A value of "0" will results in 2^64 loops.
+ */
+void sdelay(unsigned long loops)
+{
+ __asm__ volatile ("1:\n" "subs %0, %0, #1\n"
+ "b.ne 1b" : "=r" (loops) : "0"(loops) : "cc");
+}
+