PHY_MARV_CTRL
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
gm_phy_write(hw, port, PHY_MARV_CTRL,
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
ctrl = gm_phy_read(hw, port, PHY_MARV_CTRL);
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
gm_phy_write(hw, port, PHY_MARV_CTRL, ctrl);
gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_ANE);
gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN);