I am currently trying to get a M41T65 sensor to work on a PPC405 based board.  I am using the 2.6.26 kernel with a backported version of  rtc-m41t80.c (from 2.6.30).  Everything compiles and loads fine.  However, there is no /dev/rtc node created.  &quot;/proc/devices&quot; returns &quot;254 rtc&quot; (which I feel isn&#39;t correct).  And &quot;/sys/bus/i2c/devices/&quot; list nothing for the RTC.  I do see the information from the device tree in &quot;/proc/device-tree/plb/opb/i2c@ef600400/rtc@68/&quot;<br>
<br>Here is my dts information:<br> IIC0: i2c@ef600400 {<br>                                compatible = &quot;ibm,iic-405exr&quot;, &quot;ibm,iic&quot;;<br>                                reg = &lt;ef600400 14&gt;;<br>                                interrupt-parent = &lt;&amp;UIC0&gt;;<br>
                                interrupts = &lt;2 4&gt;;<br>                                index = &lt;0&gt;;<br>                                rtc@68 {<br>                                        compatible = &quot;m41t65&quot;;<br>
                                        reg = &lt;68&gt;;<br>                                        };<br>                        };<br><br>Thanks!<br>Jake Magee<br>