[PATCH v3 0/2] net: phy: Support managed Cortina phys
From: Bogdan Purcareata
Date: Fri May 26 2017 - 03:59:44 EST
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
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1.9.1