The code assumed that if the interface is not RGMII configured
then it must be SGMII configured.  This device has the ability
to support most of the MII interfaces.  Therefore add the
helper for SGMII and only configure the device if the interface is
configured for SGMII.
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Reviewed-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NMichal Simek <michal.simek@xilinx.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

Move the phy_interface_is_rgmii to the phy.h
file for all phy's to be able to use the API.

This now aligns with the Linux kernel based on
commit e463d88c36d42211aa72ed76d32fb8bf37820ef1
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Reviewed-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NMichal Simek <michal.simek@xilinx.com>
Tested-by: NMugunthan V N <mugunthanvnm@ti.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

Not all devices use the same internal delay or fifo depth.
Add the ability to set the internal delay for rx or tx and the
fifo depth via the devicetree.  If the value is not set in the
devicetree then set the delay to the default.

If devicetree is not used then use the default defines within the
driver.
Signed-off-by: NDan Murphy <dmurphy@ti.com>
Tested-by: NMugunthan V N <mugunthanvnm@ti.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

Add support of SGMII to TI phy dp838367
Enable the SGMII and PCS settings in phy
control, CFG2 and BIST registers
Signed-off-by: NSiva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

Enable automatic crossover cable detection.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

Code is taken from Linux kernel driver (v4.2).
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
Reviewed-by: NTom Rini <trini@konsulko.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>