On Fri, Oct 28, 2016 at 04:56:55PM -0400, Jon Mason wrote: > The BCM54810 PHY requires some semi-unique configuration, which results > in some additional configuration in addition to the standard config. > Also, some users of the BCM54810 require the PHY lanes to be swapped. > Since there is no way to detect this, add a device tree query to see if > it is applicable. > > Inspired-by: Vikas Soni <vs...@broadcom.com> > Signed-off-by: Jon Mason <jon.ma...@broadcom.com> > --- > drivers/net/phy/Kconfig | 2 +- > drivers/net/phy/broadcom.c | 58 > +++++++++++++++++++++++++++++++++++++++++++++- > include/linux/brcmphy.h | 10 ++++++++
Hi Jon The binding documentation is missing. > + if (of_property_read_bool(np, "brcm,enet-phy-lane-swap")) { > + /* Lane Swap - Undocumented register...magic! */ > + ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9, > + 0x11B); > + if (ret < 0) > + return ret; > + } > + I wounder if this property could be made generic? What exactly are you swapping? Rx and Tx lanes? Maybe we should add it to phy.txt? Andrew