AR_PHY_TIMING_CTRL4_CHAIN
tmp = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0));
OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0), new);
OS_REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4_CHAIN(i),
OS_REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4_CHAIN(i),
tmp = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0));
OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0), newVal);
OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0),
(OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0)) &
OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0) + regChainOffset,
(OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0)