AC97_PCR
__raw_writel(AC97PCR_CLRFIFO(stype), AC97_PCR(pscdata));
__raw_writel(AC97PCR_START(stype), AC97_PCR(pscdata));
__raw_writel(AC97PCR_STOP(stype), AC97_PCR(pscdata));
__raw_writel(AC97PCR_CLRFIFO(stype), AC97_PCR(pscdata));