AR_PHY_FC_DYN2040_EN
phymode |= AR_PHY_FC_DYN2040_EN;
REG_SET_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);
REG_CLR_BIT(ah, AR_PHY_TURBO, AR_PHY_FC_DYN2040_EN);