Save extended address register prior to switching to 1000BASE-X only mode and restore original value of extended address register instead of overwriting it with page 1. There are still instance information passing issue(e.g configured media type: fiber or copper) from driver to PHY layer but this change make the selected PHY work with 88E1112 PHY.
Save extended address register prior to switching to 1000BASE-X
only mode and restore original value of extended address register
instead of overwriting it with page 1. There are still instance
information passing issue(e.g configured media type: fiber or
copper) from driver to PHY layer but this change make the selected
PHY work with 88E1112 PHY.

Reported by:	Krzysztof Jedruczyk < beaker <at> hot dot pl >
Tested by:	Krzysztof Jedruczyk < beaker <at> hot dot pl >

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase