Add basic PHY management sufficient to detect link up, link down and
auto negotiated link speed / duplex. The PHY driver is implemented as
a state machine that executed in the system work queue. The
implementation is non blocking, using the MII interrupt to capture the
completion of read and write events.
This PHY management should be fairly generic. In the future, it may be
beneficial to pull this code out as a standalone PHY driver for use
with other ethernet drivers.
JIRA: ZEP-1674
Change-Id: I3dcb5c14982ef4b40591fcf10d84840b8a2558e5
Signed-off-by: Marcus Shawcroft <marcus.shawcroft@arm.com>
Working Ethernet, and actually even successfully booting with Ethernet
enabled (and Ethernet is enabled by default on enabling networking)
so far requires a network cable attached.
Change-Id: I9c17e417f867942ddf085db9e8342e945aa07370
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Marcus Shawcroft