K 10
svn:author
V 4
loos
K 8
svn:date
V 27
2019-12-06T20:21:07.831794Z
K 7
svn:log
V 285
Add a GPIO based MDIO bit-banging bus driver.

Uses two GPIO pins as MDC (clock) and MDIO (bidirectional I/O), relies
on mii_bitbang.

Tested on SG-3200 where the PHY for one of the ports is wired independently
of the SoC MDIO bus.

Sponsored by:	Rubicon Communications, LLC (Netgate)

END