Add RMII-specific handling to rk3288_gmac_fix_mac_speed() so that it
properly sets the RMII clock (2.5 MHz vs. 25 MHz) and speed bits
(10 Mbps vs. 100 Mbps). Also define a new rk3288_gmac_set_to_rmii()
function to set the PHY interface field and RMII_MODE bit.
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
5a18b6747c