AT91_MSTCLK
AT91_MSTCLK / 1000000U, (AT91_MSTCLK / 1000U) % 1000U,
DBGU_INIT(AT91_MSTCLK, 115200U);
sc->sc_brgr = (AT91_MSTCLK / 16 + t->c_ospeed / 2) / t->c_ospeed;
DBGU_INIT(AT91_MSTCLK, ospeed);
scbr = speed ? ((AT91_MSTCLK + speed - 1) / speed + 1) & ~1 : -1;
if (AT91_MSTCLK / 2U / HZ <= 65536) {
sc->sc_timerclock = AT91_MSTCLK / 2U;
} else if (AT91_MSTCLK / 8U / HZ <= 65536) {
sc->sc_timerclock = AT91_MSTCLK / 8U;
} else if (AT91_MSTCLK / 32U / HZ <= 65536) {
sc->sc_timerclock = AT91_MSTCLK / 32U;
} else if (AT91_MSTCLK / 128U / HZ <= 65536) {
sc->sc_timerclock = AT91_MSTCLK / 128U;
if ((cxdiv = (AT91_MSTCLK / (1U << ckdiv)) / (2 * 50000U)) < 256) {
sc->sc_brgr = (AT91_MSTCLK / 16 + t->c_ospeed / 2) / t->c_ospeed;
(AT91_MSTCLK / 16 + (speed) / 2) / (speed)); \