diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 3100a72b9b44885379e24de680c0e619f9496c8b..9170120ce5d11968ef8d3c2061761ec43df739c7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -278,8 +278,6 @@ struct iwl_cfg iwl1000_bgn_cfg = {
 	.fw_name_pre = IWL1000_FW_PRE,
 	.ucode_api_max = IWL1000_UCODE_API_MAX,
 	.ucode_api_min = IWL1000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 	.ops = &iwl1000_ops,
@@ -294,8 +292,6 @@ struct iwl_cfg iwl1000_bg_cfg = {
 	.fw_name_pre = IWL1000_FW_PRE,
 	.ucode_api_max = IWL1000_UCODE_API_MAX,
 	.ucode_api_min = IWL1000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 	.ops = &iwl1000_ops,
@@ -309,8 +305,6 @@ struct iwl_cfg iwl100_bgn_cfg = {
 	.fw_name_pre = IWL100_FW_PRE,
 	.ucode_api_max = IWL100_UCODE_API_MAX,
 	.ucode_api_min = IWL100_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_A,
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 	.ops = &iwl1000_ops,
@@ -325,8 +319,6 @@ struct iwl_cfg iwl100_bg_cfg = {
 	.fw_name_pre = IWL100_FW_PRE,
 	.ucode_api_max = IWL100_UCODE_API_MAX,
 	.ucode_api_min = IWL100_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_A,
 	.eeprom_ver = EEPROM_1000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_1000_TX_POWER_VERSION,
 	.ops = &iwl1000_ops,
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 6788ceb37686a4cfe6fe135f8af0201a68e1ab28..9f1d8d8c8fcceb2b1c9e8862e200de0ed81e8c3e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2624,8 +2624,6 @@ struct iwl_cfg iwl4965_agn_cfg = {
 	.fw_name_pre = IWL4965_FW_PRE,
 	.ucode_api_max = IWL4965_UCODE_API_MAX,
 	.ucode_api_min = IWL4965_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_ABC,
 	.eeprom_ver = EEPROM_4965_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
 	.ops = &iwl4965_ops,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 3ee0f7c035cf2ffff22dd443ede736b96e16f260..cf74edb82a7031a17ae7b7380f98aef391439673 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -527,8 +527,6 @@ struct iwl_cfg iwl5300_agn_cfg = {
 	.fw_name_pre = IWL5000_FW_PRE,
 	.ucode_api_max = IWL5000_UCODE_API_MAX,
 	.ucode_api_min = IWL5000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_ABC,
-	.valid_rx_ant = ANT_ABC,
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.ops = &iwl5000_ops,
@@ -543,8 +541,8 @@ struct iwl_cfg iwl5100_bgn_cfg = {
 	.fw_name_pre = IWL5000_FW_PRE,
 	.ucode_api_max = IWL5000_UCODE_API_MAX,
 	.ucode_api_min = IWL5000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_B,
-	.valid_rx_ant = ANT_AB,
+	.valid_tx_ant = ANT_B,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_AB,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.ops = &iwl5000_ops,
@@ -559,8 +557,8 @@ struct iwl_cfg iwl5100_abg_cfg = {
 	.fw_name_pre = IWL5000_FW_PRE,
 	.ucode_api_max = IWL5000_UCODE_API_MAX,
 	.ucode_api_min = IWL5000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_B,
-	.valid_rx_ant = ANT_AB,
+	.valid_tx_ant = ANT_B,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_AB,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.ops = &iwl5000_ops,
@@ -574,8 +572,8 @@ struct iwl_cfg iwl5100_agn_cfg = {
 	.fw_name_pre = IWL5000_FW_PRE,
 	.ucode_api_max = IWL5000_UCODE_API_MAX,
 	.ucode_api_min = IWL5000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_B,
-	.valid_rx_ant = ANT_AB,
+	.valid_tx_ant = ANT_B,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_AB,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_5000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
 	.ops = &iwl5000_ops,
@@ -590,8 +588,6 @@ struct iwl_cfg iwl5350_agn_cfg = {
 	.fw_name_pre = IWL5000_FW_PRE,
 	.ucode_api_max = IWL5000_UCODE_API_MAX,
 	.ucode_api_min = IWL5000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_ABC,
-	.valid_rx_ant = ANT_ABC,
 	.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
 	.ops = &iwl5000_ops,
@@ -606,8 +602,6 @@ struct iwl_cfg iwl5150_agn_cfg = {
 	.fw_name_pre = IWL5150_FW_PRE,
 	.ucode_api_max = IWL5150_UCODE_API_MAX,
 	.ucode_api_min = IWL5150_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
 	.ops = &iwl5150_ops,
@@ -623,8 +617,6 @@ struct iwl_cfg iwl5150_abg_cfg = {
 	.fw_name_pre = IWL5150_FW_PRE,
 	.ucode_api_max = IWL5150_UCODE_API_MAX,
 	.ucode_api_min = IWL5150_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_5050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
 	.ops = &iwl5150_ops,
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 93e3fe92f389175063ae072067119e3a06711b98..a3a055f7fd43e972984e495884c4de7788a89e10 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -557,8 +557,6 @@ struct iwl_cfg iwl6000g2a_2agn_cfg = {
 	.fw_name_pre = IWL6000G2A_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -575,8 +573,6 @@ struct iwl_cfg iwl6000g2a_2abg_cfg = {
 	.fw_name_pre = IWL6000G2A_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -592,8 +588,6 @@ struct iwl_cfg iwl6000g2a_2bg_cfg = {
 	.fw_name_pre = IWL6000G2A_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -609,8 +603,6 @@ struct iwl_cfg iwl6000g2b_2agn_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -631,8 +623,6 @@ struct iwl_cfg iwl6000g2b_2abg_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -652,8 +642,6 @@ struct iwl_cfg iwl6000g2b_2bgn_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -674,8 +662,6 @@ struct iwl_cfg iwl6000g2b_2bg_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -695,8 +681,6 @@ struct iwl_cfg iwl6000g2b_bgn_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -717,8 +701,6 @@ struct iwl_cfg iwl6000g2b_bg_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -741,8 +723,8 @@ struct iwl_cfg iwl6000i_2agn_cfg = {
 	.fw_name_pre = IWL6000_FW_PRE,
 	.ucode_api_max = IWL6000_UCODE_API_MAX,
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_BC,
-	.valid_rx_ant = ANT_BC,
+	.valid_tx_ant = ANT_BC,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_BC,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_6000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -758,8 +740,8 @@ struct iwl_cfg iwl6000i_2abg_cfg = {
 	.fw_name_pre = IWL6000_FW_PRE,
 	.ucode_api_max = IWL6000_UCODE_API_MAX,
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_BC,
-	.valid_rx_ant = ANT_BC,
+	.valid_tx_ant = ANT_BC,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_BC,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_6000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -774,8 +756,8 @@ struct iwl_cfg iwl6000i_2bg_cfg = {
 	.fw_name_pre = IWL6000_FW_PRE,
 	.ucode_api_max = IWL6000_UCODE_API_MAX,
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_BC,
-	.valid_rx_ant = ANT_BC,
+	.valid_tx_ant = ANT_BC,		/* .cfg overwrite */
+	.valid_rx_ant = ANT_BC,		/* .cfg overwrite */
 	.eeprom_ver = EEPROM_6000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -790,8 +772,6 @@ struct iwl_cfg iwl6050_2agn_cfg = {
 	.fw_name_pre = IWL6050_FW_PRE,
 	.ucode_api_max = IWL6050_UCODE_API_MAX,
 	.ucode_api_min = IWL6050_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.ops = &iwl6050_ops,
 	.eeprom_ver = EEPROM_6050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6050_TX_POWER_VERSION,
@@ -807,8 +787,6 @@ struct iwl_cfg iwl6050g2_bgn_cfg = {
 	.fw_name_pre = IWL6050_FW_PRE,
 	.ucode_api_max = IWL6050_UCODE_API_MAX,
 	.ucode_api_min = IWL6050_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6050G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6050G2_TX_POWER_VERSION,
 	.ops = &iwl6050g2_ops,
@@ -824,8 +802,6 @@ struct iwl_cfg iwl6050_2abg_cfg = {
 	.fw_name_pre = IWL6050_FW_PRE,
 	.ucode_api_max = IWL6050_UCODE_API_MAX,
 	.ucode_api_min = IWL6050_UCODE_API_MIN,
-	.valid_tx_ant = ANT_AB,
-	.valid_rx_ant = ANT_AB,
 	.eeprom_ver = EEPROM_6050_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6050_TX_POWER_VERSION,
 	.ops = &iwl6050_ops,
@@ -840,8 +816,6 @@ struct iwl_cfg iwl6000_3agn_cfg = {
 	.fw_name_pre = IWL6000_FW_PRE,
 	.ucode_api_max = IWL6000_UCODE_API_MAX,
 	.ucode_api_min = IWL6000_UCODE_API_MIN,
-	.valid_tx_ant = ANT_ABC,
-	.valid_rx_ant = ANT_ABC,
 	.eeprom_ver = EEPROM_6000_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000_TX_POWER_VERSION,
 	.ops = &iwl6000_ops,
@@ -857,8 +831,6 @@ struct iwl_cfg iwl130_bgn_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_A,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
@@ -878,8 +850,6 @@ struct iwl_cfg iwl130_bg_cfg = {
 	.fw_name_pre = IWL6000G2B_FW_PRE,
 	.ucode_api_max = IWL6000G2_UCODE_API_MAX,
 	.ucode_api_min = IWL6000G2_UCODE_API_MIN,
-	.valid_tx_ant = ANT_A,
-	.valid_rx_ant = ANT_A,
 	.eeprom_ver = EEPROM_6000G2_EEPROM_VERSION,
 	.eeprom_calib_ver = EEPROM_6000G2_TX_POWER_VERSION,
 	.ops = &iwl6000g2b_ops,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
index 8a4d3acb9b79114088885123de8dec407156ed69..dbada761624dae241fd493f944508b851d734474 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c
@@ -251,6 +251,7 @@ int iwl_eeprom_check_version(struct iwl_priv *priv)
 int iwl_eeprom_check_sku(struct iwl_priv *priv)
 {
 	u16 eeprom_sku;
+	u16 radio_cfg;
 
 	eeprom_sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
 
@@ -266,6 +267,25 @@ int iwl_eeprom_check_sku(struct iwl_priv *priv)
 
 	IWL_INFO(priv, "Device SKU: 0X%x\n", priv->cfg->sku);
 
+	if (!priv->cfg->valid_tx_ant && !priv->cfg->valid_rx_ant) {
+		/* not using .cfg overwrite */
+		radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
+		priv->cfg->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
+		priv->cfg->valid_rx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg);
+		if (!priv->cfg->valid_tx_ant || !priv->cfg->valid_rx_ant) {
+			IWL_ERR(priv, "Invalid chain (0X%x, 0X%x)\n",
+				priv->cfg->valid_tx_ant,
+				priv->cfg->valid_rx_ant);
+			return -EINVAL;
+		}
+		IWL_INFO(priv, "Valid Tx ant: 0X%x, Valid Rx ant: 0X%x\n",
+			 priv->cfg->valid_tx_ant, priv->cfg->valid_rx_ant);
+	}
+	/*
+	 * for some special cases,
+	 * EEPROM did not reflect the correct antenna setting
+	 * so overwrite the valid tx/rx antenna from .cfg
+	 */
 	return 0;
 }