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57827e87be
Enable both the MACs found on the board.
ethernet0 and ethernet1 both ultimately go to a series of on board
switches which aren't managed by this processor.
ethernet0 is connected to a Marvell 88EA1512 phy via RGMII. That goes to
the series of switches via SGMII on the "media" side of the phy.
RGMII_SGMII mode is enabled via devicetree register descriptions.
The switch on the "media" side has auto-negotiation disabled, so
configuration from userspace similar to:
ethtool -s eth0 autoneg off speed 1000 duplex full
is necessary to get traffic flowing on that interface.
ethernet1 is in a mac2mac/fixed-link configuration going to the same
series of switches directly via RGMII.
Tested-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230501205105.2518373-3-ahalaney@redhat.com
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.