IXGBE_CS4227_EDC_MODE_CX1
reg_val = (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 0x1;
reg_phy_ext &= ~((IXGBE_CS4227_EDC_MODE_CX1 << 1) |
reg_phy_ext |= (IXGBE_CS4227_EDC_MODE_CX1 << 1) | 1;