net: phy: add Marvell 88X2222 transceiver support

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Add basic support for the Marvell 88X2222 multi-speed ethernet
transceiver.

This PHY provides data transmission over fiber-optic as well as Twinax
copper links. The 88X2222 supports 2 ports of 10GBase-R and 1000Base-X
on the line-side interface. The host-side interface supports 4 ports of
10GBase-R, RXAUI, 1000Base-X and 2 ports of XAUI.

This driver, however, supports only XAUI on the host-side and
1000Base-X/10GBase-R on the line-side, for now. The SGMII is also
supported over 1000Base-X. Interrupts are not supported.

Internal registers access compliant with the Clause 45 specification.

Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Ivan Bornyakov 2021-03-15 17:19:26 +03:00 • committed by David S. Miller

parent 63fe60596b

commit 6e3bac3eba

4 changed files with 527 additions and 0 deletions

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6

drivers/net/phy/Kconfig

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1

drivers/net/phy/Makefile

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519

drivers/net/phy/marvell-88x2222.c

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1

include/linux/marvell_phy.h

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