-------------------------------------------- On Tue, 12/13/16, Grzegorz G <[email protected]> wrote:
Subject: Re: [beagleboard] Re: possible workaround for BeagleBone Ethernet PHY problems To: "BeagleBoard" <[email protected]> Cc: [email protected] Date: Tuesday, December 13, 2016, 9:36 AM I don't have my design hardware, I've bought many bbb boards and some of them with ethernet issues after many hours working without any problems link becomes down. Does the kernel with -bone60 or greater suffix is the SW workaround? Is the power management of the LAN chip couse the problem? below log from kernel when problems occur:Dec 6 14:22:17 beaglebone kernel: [709664.393005] libphy: 4a101000.mdio:00 - Link is DownDec 6 14:22:20 beaglebone kernel: [709666.620148] net eth0: initializing cpsw version 1.12 (0)Dec 6 14:22:20 beaglebone kernel: [709666.622540] net eth0: phy 4a101000.mdio:00 not found on slave 0Dec 6 14:22:20 beaglebone kernel: [709666.628940] libphy: PHY 4a101000.mdio:01 not foundDec 6 14:22:20 beaglebone kernel: [709666.634052] net eth0: phy 4a101000.mdio:01 not found on slave 1Dec 6 14:22:20 beaglebone kernel: [709666.644534] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready and when no problems - at boot time:Jan 1 01:00:13 beaglebone kernel: [ 6.183325] net eth0: initializing cpsw version 1.12 (0)Jan 1 01:00:13 beaglebone kernel: [ 6.187580] net eth0: phy found : id is : 0x7c0f1Jan 1 01:00:13 beaglebone kernel: [ 6.187608] libphy: PHY 4a101000.mdio:01 not foundJan 1 01:00:13 beaglebone kernel: [ 6.192679] net eth0: phy 4a101000.mdio:01 not found on slave 1Jan 1 01:00:13 beaglebone kernel: [ 6.224917] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not readyJan 1 01:00:13 beaglebone kernel: [ 6.580019] omap_rng 48310000.rng: base address of priv is -97452032Jan 1 01:00:13 beaglebone kernel: [ 6.614128] omap_rng 48310000.rng: OMAP Random Number Generator ver. 20Jan 1 01:00:13 beaglebone kernel: [ 10.333416] libphy: 4a101000.mdio:00 - Link is Up - 100/FullJan 1 01:00:13 beaglebone kernel: [ 10.333488] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Today I'll check current kernel version of the board with ethernet issues. Regards Grzegorz W dniu poniedziałek, 12 grudnia 2016 23:03:09 UTC+1 użytkownik RobertCNelson napisał:On Mon, Dec 12, 2016 at 1:10 PM, Grzegorz G <[email protected]> wrote: > I wonder if the ethernet problems (link is down) has been resolved? > We have a software workaround, depending on your kernel version (uname -r)... Otherwise if your designing your own hardware, make sure you tie a gpio line the phy's reset line.. On the bbb design, the phy reset is tied to the processor reset... Regards, -- Robert Nelson https://rcn-ee.com/ -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/9bb027f6-8bcd-4b19-8baf-cb238f3bb1bd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. liati s-a intronat in lume principiile de drept si umanitate pentru toate neamurile si cand in urma -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/369043942.1697215.1481616039340%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
