net: phy: Add Synopsys DesignWare XPCS MDIO module

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Synopsys DesignWare XPCS is an MMD that can manage link status,
auto-negotiation, link training, ...

In this commit we add basic support for XPCS using USXGMII interface and
Clause 73 Auto-negotiation.

This is highly tied with PHYLINK and can't be used without it. A given
ethernet driver can use the provided callbacks to add the support for
XPCS.

Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Jose Abreu 2020-03-09 09:36:26 +01:00 • committed by David S. Miller

parent 9414819654

commit fcb26bd2b6

5 changed files with 667 additions and 0 deletions

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7

MAINTAINERS

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6

drivers/net/phy/Kconfig

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1

drivers/net/phy/Makefile

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612

drivers/net/phy/mdio-xpcs.c

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41

include/linux/mdio-xpcs.h

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