Eth not working on CycloneV/Atlas-SoC. Outdated board file?

Does anyone have an updated board_info.xml file for the CycloneV Atlas-SoC kit?

I'm building linux-altera-ltsi (Linux version 4.1.33-ltsi-altera (oe-user@oe-host) (gcc version 6.3.1 20170109 (Linaro GCC 6.3-2017.02-rc3~dev) )# 1 SMP Sat Nov 11 01:46:17 CET 2017) on Yocto Pyro. I'm able to compile and boot everything.

However, for some unknown reason I cannot get Ethernet up, and the only clue for it is found in dmesg:

     stmmaceth ff702000.ethernet: snps,phy-addr property is deprecated
     stmmaceth ff702000.ethernet: Could not get reset control!
     stmmaceth ff702000.ethernet: No sysmgr-syscon node found
     stmmaceth ff702000.ethernet: Unable to parse OF data

I find the "snps,phy-add" statements in the board_info_*.xml from here: https://github.com/dwesterg/atlas-soc-ghrd/blob/master/board_info/board_info_atlas_soc_ghrd.xml

I am inclined to think that this file contains outdated syntax. Does anyone have an updated version of this file? Is there a documentation anywhere about how the syntax of these board files should be?