Hi KeOu, I guess with 3.8.13-bone67 I had "phy not found" as frequently as with the original image. On one board with 3.8.13-bone67, I had just one occurrence of "phy not found" in 50 power-on resets. On the other board with the same kernel I had 22 "phy not found" out of 50 power-on resets. Then I updated the kernel to 3.8.13-bone68, and still had that error, 12 times out of 50 power-on resets.
To perform that kernel update, I followed the instructions from the error message that showed up after I attempted to run "install-me.sh" from http://rcn-ee.net/deb/wheezy-armhf/v3.8.13-bone68/ Could you please describe in more detail what prebuilt image you tried and how exactly you installed that? Did you also install some other U-Boot? Some time ago, I installed and tried one of the rcn-ee.net images following a procedure similar to that described here <http://www.armhf.com/boards/beaglebone-black/bbb-sd-install/>. But it didn't help. There is one important thing to remember: "phy not found" happens before autoboot in U-Boot, and if that happens, no matter which Linux is loaded afterwards - the transceiver chip doesn't work properly. So, both 3.8.13-bone67 and 3.8.13-bone68 fail to detect the chip, if it wasn't detected by U-Boot. Regards, Alex On Saturday, December 6, 2014 5:59:56 PM UTC+1, keou...@gmail.com wrote: > > Hi Alex, > > In past couple days, I went through the same path as you did. However, > with my limited tests, I see improvement on 3.8.13-bone68. I have BBB Rev C > from Element14 with a generic 5V 2.8A switch power supplier. > > - with 3.8.13-bone47 (the original image) power cycle 50 times, there were > 2 "phy not found" > - with 3.8.13-bone68 (prebuild image from http://rcn-ee.net/, power cycle > 50 times, there were no "phy not found" > I also tested 3.14.22-ti-r31, power cycle 50 time, and no "phy not found". > > I'll do more test to see if the issue show up. In you tests, did you see > any improvement in 3.8.13-bone67 vs earlier version ? > > Thanks > > KeOu -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
