RTC_REG_WRITE_PROTECT
via_rtc_command(RTC_CMD_WRITE(RTC_REG_WRITE_PROTECT), &temp);
via_rtc_command(RTC_CMD_WRITE(RTC_REG_WRITE_PROTECT), &temp);
via_rtc_command(RTC_CMD_WRITE(RTC_REG_WRITE_PROTECT), &temp);
via_rtc_command(RTC_CMD_WRITE(RTC_REG_WRITE_PROTECT), &temp);