linux-kernel - [PATCH v3 0/2] net: phy: Support managed Cortina phys

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Message-ID: <1495785519-1468-1-git-send-email-bogdan.purcareata@nxp.com>
Date:   Fri, 26 May 2017 07:58:37 +0000
From:   Bogdan Purcareata <bogdan.purcareata@....com>
To:     <andrew@...n.ch>, <f.fainelli@...il.com>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 0/2] net: phy: Support managed Cortina phys

So far, the Cortina family phys (CS4340 in this particular case) are only
supported in fixed link mode (via fixed_phy_register). The generic 10G
phy driver does not work well with the phylib state machine, when the phy
is registered via of_phy_connect. This prohibits the user from describing the
phy nodes in the device tree.

In order to support this scenario, and to properly describe the board
device tree, add a minimal Cortina driver that reads the status from the
right register. With the generic 10G C45 driver, the kernel will print
messages like:
[    0.226521] mdio_bus 8b96000: Error while reading PHY16 reg at 1.6
[    0.232780] mdio_bus 8b96000: Error while reading PHY16 reg at 1.5

v2 -> v3:
- Add documentation entry.

v1 -> v2:
- Change approach for getting the phy_id from hacking get_phy_c45_ids to
  describing the device in the device tree via ethernet-phy-id.

More patch version changes per individual patches.

Bogdan Purcareata (2):
  net: phy: Add Cortina CS4340 driver
  dt-bindings: net: Add Cortina device tree bindings

 Documentation/devicetree/bindings/net/cortina.txt |  19 ++++
 drivers/net/phy/Kconfig                           |   5 +
 drivers/net/phy/Makefile                          |   1 +
 drivers/net/phy/cortina.c                         | 115 ++++++++++++++++++++++
 4 files changed, 140 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/cortina.txt
 create mode 100644 drivers/net/phy/cortina.c

-- 
1.9.1