{
 }
 
+static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
+{
+       return (addr >= RTC_DATA_LOWER_BOUND) &&
+               (addr < IWL50_RTC_DATA_UPPER_BOUND);
+}
+
 static struct iwl_hcmd_ops iwl5000_hcmd = {
 };
 
        .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
        .disable_tx_fifo = iwl5000_disable_tx_fifo,
        .rx_handler_setup = iwl5000_rx_handler_setup,
+       .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
        .load_ucode = iwl5000_load_ucode,
        .init_alive_start = iwl5000_init_alive_start,
        .alive_notify = iwl5000_alive_notify,