linux-kernel - [PATCH 0/4] net: dsa: mv88e6xxx: serdes link without phy

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Message-Id: <20201022012516.18720-1-chris.packham@alliedtelesis.co.nz>
Date:   Thu, 22 Oct 2020 14:25:11 +1300
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     andrew@...n.ch, vivien.didelot@...il.com, f.fainelli@...il.com,
        olteanv@...il.com, davem@...emloft.net, kuba@...nel.org,
        linux@...linux.org.uk
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH 0/4] net: dsa: mv88e6xxx: serdes link without phy

This small series gets my hardware into a working state. The key points are to
make sure we don't force the link and that we ask the MAC for the link status.
I also have updated my dts to say `phy-mode = "1000base-x";` and `managed =
"in-band-status";`

I've included patch #4 in this series but I don't have anything to test it on.
It's just a guess based on the datasheets. I'd suggest applying patch 1, 2 & 3
and leaving 4 for the mailing list archives.

Chris Packham (4):
  net: dsa: mv88e6xxx: Don't force link when using in-band-status
  net: dsa: mv88e6xxx: Support serdes ports on MV88E6097/6095/6185
  net: dsa: mv88e6xxx: Handle error in serdes_get_regs
  net: dsa: mv88e6xxx: Support serdes ports on MV88E6123/6131

 drivers/net/dsa/mv88e6xxx/chip.c   |  50 +++++++++++-
 drivers/net/dsa/mv88e6xxx/chip.h   |   4 +
 drivers/net/dsa/mv88e6xxx/port.c   |  36 +++++++++
 drivers/net/dsa/mv88e6xxx/port.h   |   3 +
 drivers/net/dsa/mv88e6xxx/serdes.c | 122 +++++++++++++++++++++++++++--
 drivers/net/dsa/mv88e6xxx/serdes.h |   9 +++
 6 files changed, 217 insertions(+), 7 deletions(-)

-- 
2.28.0