RTC_BASE
val = rtcsram_read_4(sc, RTC_BASE);
rtcsram_write_4(sc, RTC_BASE, tv->tv_sec);
val = rtcsram_read_4(sc, RTC_BASE);
sc->sc_sram.counter_bias = tv->tv_sec - rtcsram_read_4(sc, RTC_BASE);
{ "rtc", RTC_BASE, -1,