Read the phy idetifier register to identify whether PHY is Marvell or TI.
Add support for TI PHY sequence by writing to PHY CNTRL register and
tuning using RGMIICTL/RGMIIDCTL registers.
Access to extended registers in TI pHY is through REGCR and ADDAR registers.
ADDAR should be used to write the offset of register to be written
and then the value to be written. REGCR should indicate when ADDAR contains
register offset and when it contains register data.
Signed-off-by: Harini Katakam <harinik@xilinx.com>
Reviewed-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
