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 Bogdan Purcareata (2): net: phy: Update get_phy_c45_ids for Cortina PHYs drivers: phy: Add Cortina CS4340 driver drivers/net/phy/Kconfig | 5 +++ drivers/net/phy/Makefile | 1 + drivers/net/phy/mdio-cortina.c | 90 ++++++++++++++++++++++++++++++++++++++++++ drivers/net/phy/phy_device.c | 10 +++-- 4 files changed, 102 insertions(+), 4 deletions(-) create mode 100644 drivers/net/phy/mdio-cortina.c -- 1.9.1
