PHY_BCOM_AUX_CTRL
r = xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL);
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, r);
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL,
xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL)