uboot-phytec

net: ti: icssg-prueth: Add support for 100M links

Currently driver doesn't set the speed and full duplex parameters
in RGMII CFG based on PHY auto negotiated parameters. This patch
make updates so that both 100M/1G link speed and full duplex are
configured in RGMII CFG register based on PHY negotiated values.

Also Firmware requires that minimum inter packet gap (TX_IPG0/1 field of
ICSSG_TX_IPG0/1 register) is to be set to desired values based on the
PHY link speed. This patch updates the same based on PHY link speed.

Both of the above together add support for 100M.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>