With MAC_PHY sgmii configuration, u-boot checks PHY link status before
sending each packet. Increasing MDIO frequency increases overall tftp
speed. We set it to maximum 2.5MHz.
Acked-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
 /* MDIO module input frequency */
 #define EMAC_MDIO_BUS_FREQ             (clk_get_rate(pass_pll_clk))
 /* MDIO clock output frequency */
-#define EMAC_MDIO_CLOCK_FREQ           1000000                /* 1.0 MHz */
+#define EMAC_MDIO_CLOCK_FREQ           2500000 /* 2.5 MHz */
 
 /* MII Status Register */
 #define MII_STATUS_REG                 1