rtcsram_read_4
val = rtcsram_read_4(sc, RTC_BASE);
val = rtcsram_read_4(sc, RTC_BASE);
sc->sc_sram.counter_bias = tv->tv_sec - rtcsram_read_4(sc, RTC_BASE);
static uint32_t rtcsram_read_4(struct rtcsram_softc *, uint32_t);