--- a/include/linux/ath9k_platform.h +++ b/include/linux/ath9k_platform.h @@ -31,6 +31,9 @@ struct ath9k_platform_data { bool endian_check; bool is_clk_25mhz; + bool disable_2ghz; + bool disable_5ghz; + int (*get_mac_revision)(void); int (*external_reset)(void); --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2413,17 +2413,25 @@ int ath9k_hw_fill_cap_info(struct ath_hw } eeval = ah->eep_ops->get_eeprom(ah, EEP_OP_MODE); - if ((eeval & (AR5416_OPFLAGS_11G | AR5416_OPFLAGS_11A)) == 0) { - ath_err(common, - "no band has been marked as supported in EEPROM\n"); - return -EINVAL; + + if (eeval & AR5416_OPFLAGS_11A) { + if (ah->disable_5ghz) + ath_warn(common, "disabling 5GHz band\n"); + else + pCap->hw_caps |= ATH9K_HW_CAP_5GHZ; } - if (eeval & AR5416_OPFLAGS_11A) - pCap->hw_caps |= ATH9K_HW_CAP_5GHZ; + if (eeval & AR5416_OPFLAGS_11G) { + if (ah->disable_2ghz) + ath_warn(common, "disabling 2GHz band\n"); + else + pCap->hw_caps |= ATH9K_HW_CAP_2GHZ; + } - if (eeval & AR5416_OPFLAGS_11G) - pCap->hw_caps |= ATH9K_HW_CAP_2GHZ; + if ((pCap->hw_caps & (ATH9K_HW_CAP_2GHZ | ATH9K_HW_CAP_5GHZ)) == 0) { + ath_err(common, "both bands are disabled\n"); + return -EINVAL; + } if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah)) chip_chainmask = 1; --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -927,6 +927,8 @@ struct ath_hw { bool is_clk_25mhz; int (*get_mac_revision)(void); int (*external_reset)(void); + bool disable_2ghz; + bool disable_5ghz; }; struct ath_bus_ops { --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -537,6 +537,8 @@ static int ath9k_init_softc(u16 devid, s ah->is_clk_25mhz = pdata->is_clk_25mhz; ah->get_mac_revision = pdata->get_mac_revision; ah->external_reset = pdata->external_reset; + ah->disable_2ghz = pdata->disable_2ghz; + ah->disable_5ghz = pdata->disable_5ghz; if (!pdata->endian_check) ah->ah_flags |= AH_NO_EEP_SWAP; }