mcclock_pad32_clockdatum
volatile struct mcclock_pad32_clockdatum *clk = mcclock_addr;
volatile struct mcclock_pad32_clockdatum *clk = (void *)mcclock_addr;
sc->sc_dp = (struct mcclock_pad32_clockdatum*)ia->ia_addr;
sc->sc_dp = (struct mcclock_pad32_clockdatum *)ioasicdev->iada_addr;
struct mcclock_pad32_clockdatum *sc_dp;