AR_PHY_GEN_CTRL
phy = AR_READ(sc, AR_PHY_GEN_CTRL);
AR_WRITE(sc, AR_PHY_GEN_CTRL, phy);
if (AR_READ(sc, AR_PHY_GEN_CTRL) & AR_PHY_GC_DYN2040_PRI_CH)
reg = AR_READ(sc, AR_PHY_GEN_CTRL);