AR_PHY_SWITCH_CHAIN_0  254 drivers/net/wireless/ath/ath9k/ar9002_phy.h #define AR_PHY_SWITCH_CHAIN_0     0x9960
AR_PHY_SWITCH_CHAIN_0  472 drivers/net/wireless/ath/ath9k/ar9003_phy.h #define AR_PHY_SWITCH_CHAIN_0    (AR_SM_BASE + 0x84)