I built kernel 4.1.13 for LS1021A and ran it on the TWR.
The root file system is busybox and the dtb is identical to the one used in Yocto project provided by NXP.
Under u-boot, all 3 ethernet devices work fine.
Under linux, I can see only the "lo" device.
Is there any component I should add to the linux configuration ?
The 4.1.13 is a vanilla kernel from kernel.org patched so I can run: