121 static uint32_t usec_to_timer_count(uint32_t usec)
126     result = (AT91_SCLK * usec) / 1000000;
128     if ((result * 1000000) != (usec * AT91_SCLK))
250 static void udelay(unsigned int usec);
350 static void udelay(unsigned int usec)  in udelay()  argument
355     usec = (usec * 1000 + AT91_SCLK - 1) / AT91_SCLK + 1;  in udelay()
360       if (diff >= usec) {  in udelay()
364       usec -= diff;  in udelay()
378 delay(unsigned int usec)  in delay()  argument
388     if (usec >= USEC_PER_TICK)  in delay()
391         unsigned int ticks = usec / USEC_PER_TICK;  in delay()
392         if (ticks*USEC_PER_TICK != usec)  in delay()
401         udelay(usec);  in delay()