Tomas Hlavacek authored Aug 03, 2016 and Michal Hrusecky committed Aug 03, 2016

Support multiple fixed PHYs for mvneta. We define more fixed PHYs
for WAN mvneta in Turris Omnia in order to allow switching between
SGMII-based SFP modules and 1000Base-X modules.

Add new WAN (=eth1) PHY mode phy-sgmii-sfp to support SGMII-based
SFP modules.

Just select phy-sgmii-sfp in /sys/.../phy_select to set the mvneta
L2 to SGMII in-band mode. This is needed for certain SGMII SFP,
especially the metalic SFP modules. Optic SFP modules are usually
1000Base-X