FSL_SATA_P_HCTRL_HC_ON
cmd |= FSL_SATA_P_HCTRL_HC_ON | FSL_SATA_P_HCTRL_SNOOP;
cmd &= ~FSL_SATA_P_HCTRL_HC_ON;
r &= ~FSL_SATA_P_HCTRL_HC_ON;
ATA_OUTL(ch->r_mem, FSL_SATA_P_HCTRL, r & ~FSL_SATA_P_HCTRL_HC_ON);