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kbradway@divercety.com , 08-26-2016, 11:39 AM

any ideas on how to get the imx6rex to boot (3.17 kernel) into 10/100 and not 1Gb ethernet. I have a 4 wire rj45 that it has to work on.

kbradway@divercety.com , 08-26-2016, 11:42 AM

should have added that I added ethtool commands in rc2.d/S99 scripts and also
pre-up ethtool -s eth0 speed 100 duplex full autoneg off in the /etc/networks file The later does seem to put it into the slower speed but then the kernel never starts dhcp request.

robertferanec , 08-28-2016, 07:38 AM

When we needed to force the PHY to work on a specific speed, we use a tool to read / write PHY mdio registers. Try this: http://www.imx6rex.com/open-rex/soft...rals/#phy_mdio

Then just follow the PHY documentation. If you need to make it default / permanent, you can add the support into your kernel device tree.