SATA_P0PHYCR_CR_WRITE
SATA_P0PHYCR_CR_DATA_IN(data) | SATA_P0PHYCR_CR_WRITE);
error = imx6_ahci_phy_ctrl(sc, SATA_P0PHYCR_CR_WRITE, true);
error = imx6_ahci_phy_ctrl(sc, SATA_P0PHYCR_CR_WRITE, false);