AR_PHY_TURBO
enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
REG_WRITE(ah, AR_PHY_TURBO, phymode);
REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
REG_CLR_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);