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由 David Daney 提交于
The GPIO pins select which sub bus is connected to the master. Initially tested with an sn74cbtlv3253 switch device wired into the MDIO bus. Signed-off-by: NDavid Daney <david.daney@cavium.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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