SLOW_CLOCK_FREQ
SLOW_CLOCK_FREQ)
#define MAINF_LOOP_MIN_WAIT (USEC_PER_SEC / SLOW_CLOCK_FREQ)
return ((mcfr & AT91_PMC_MAINF) * SLOW_CLOCK_FREQ) / MAINF_DIV;
SLOW_CLOCK_FREQ)
SLOW_CLOCK_FREQ)