MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_CNT
cnt = FIELD_GET(MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_CNT, val) + 2;
mask |= MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_CNT;
FIELD_PREP(MII_VSC73XX_PHY_CTRL_EXT3_DOWNSHIFT_CNT,