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There are 4 variations of the SJA1110 switch which have a different set of MII protocols supported per port. Document the compatible strings. Also, the SJA1110 optionally supports 2 internal MDIO buses for 2 different types of Ethernet PHYs. Document a container node called "mdios" which has 2 subnodes "mdio@0" and "mdio@1", identifiable via compatible string, under which the driver finds the internal PHYs. Cc: Rob Herring <robh+dt@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>