iwlagn: use sku capabilities information from EEPROM

Instead of having the separated define, use the sku capabilities in EEPROM
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

drivers/net/wireless/iwlwifi/iwl-agn-eeprom.c

@@ -108,18 +108,11 @@ 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);
-
 	if (!priv->cfg->sku) {
 		/* not using sku overwrite */
-		priv->cfg->sku =
-			((eeprom_sku & EEPROM_SKU_CAP_BAND_SELECTION) >>
-			EEPROM_SKU_CAP_BAND_POS);
-		if (eeprom_sku & EEPROM_SKU_CAP_11N_ENABLE)
-			priv->cfg->sku |= IWL_SKU_N;
+		priv->cfg->sku = iwl_eeprom_query16(priv, EEPROM_SKU_CAP);
 	}
 	if (!priv->cfg->sku) {
 		IWL_ERR(priv, "Invalid device sku\n");

drivers/net/wireless/iwlwifi/iwl-agn-lib.c

@@ -1532,7 +1532,7 @@ int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control)
 	memset(&flush_cmd, 0, sizeof(flush_cmd));
 	flush_cmd.fifo_control = IWL_TX_FIFO_VO_MSK | IWL_TX_FIFO_VI_MSK |
 				 IWL_TX_FIFO_BE_MSK | IWL_TX_FIFO_BK_MSK;
-	if (priv->cfg->sku & IWL_SKU_N)
+	if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
 		flush_cmd.fifo_control |= IWL_AGG_TX_QUEUE_MSK;
 
 	IWL_DEBUG_INFO(priv, "fifo queue control: 0X%x\n",
@@ -2318,7 +2318,8 @@ int iwlagn_start_device(struct iwl_priv *priv)
 {
 	int ret;
 
-	if (iwl_prepare_card_hw(priv)) {
+	if ((priv->cfg->sku & EEPROM_SKU_CAP_AMT_ENABLE) &&
+	     iwl_prepare_card_hw(priv)) {
 		IWL_WARN(priv, "Exit HW not ready\n");
 		return -EIO;
 	}

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -2515,7 +2515,7 @@ static int iwl_mac_setup_register(struct iwl_priv *priv,
 	hw->flags |= IEEE80211_HW_SUPPORTS_PS |
 		     IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
 
-	if (priv->cfg->sku & IWL_SKU_N)
+	if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
 		hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
 			     IEEE80211_HW_SUPPORTS_STATIC_SMPS;
 
@@ -2756,7 +2756,7 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 	IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
 		     sta->addr, tid);
 
-	if (!(priv->cfg->sku & IWL_SKU_N))
+	if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
 		return -EACCES;
 
 	mutex_lock(&priv->mutex);
@@ -3375,7 +3375,7 @@ static int iwl_set_hw_params(struct iwl_priv *priv)
 	priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
 
 	if (iwlagn_mod_params.disable_11n)
-		priv->cfg->sku &= ~IWL_SKU_N;
+		priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
 
 	/* Device-specific setup */
 	return priv->cfg->ops->lib->set_hw_params(priv);

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -143,7 +143,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
 	sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
 
-	if (priv->cfg->sku & IWL_SKU_N)
+	if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
 		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
 					 IEEE80211_BAND_5GHZ);
 
@@ -153,7 +153,7 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->bitrates = rates;
 	sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
 
-	if (priv->cfg->sku & IWL_SKU_N)
+	if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
 		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
 					 IEEE80211_BAND_2GHZ);
 
@@ -208,12 +208,12 @@ int iwlcore_init_geos(struct iwl_priv *priv)
 	priv->tx_power_next = max_tx_power;
 
 	if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
-	     priv->cfg->sku & IWL_SKU_A) {
+	     priv->cfg->sku & EEPROM_SKU_CAP_BAND_52GHZ) {
 		IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
 			"Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
 			   priv->pci_dev->device,
 			   priv->pci_dev->subsystem_device);
-		priv->cfg->sku &= ~IWL_SKU_A;
+		priv->cfg->sku &= ~EEPROM_SKU_CAP_BAND_52GHZ;
 	}
 
 	IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",

drivers/net/wireless/iwlwifi/iwl-core.h

@@ -83,10 +83,6 @@ struct iwl_cmd;
 
 #define TIME_UNIT		1024
 
-#define IWL_SKU_G       0x1
-#define IWL_SKU_A       0x2
-#define IWL_SKU_N       0x8
-
 #define IWL_CMD(x) case x: return #x
 
 struct iwl_hcmd_ops {
@@ -292,7 +288,7 @@ struct iwl_cfg {
 	const unsigned int ucode_api_min;
 	u8   valid_tx_ant;
 	u8   valid_rx_ant;
-	unsigned int sku;
+	u16  sku;
 	u16  eeprom_ver;
 	u16  eeprom_calib_ver;
 	const struct iwl_ops *ops;

drivers/net/wireless/iwlwifi/iwl-eeprom.h

@@ -110,9 +110,6 @@ enum {
 };
 
 /* SKU Capabilities */
-#define EEPROM_SKU_CAP_BAND_POS				(4)
-#define EEPROM_SKU_CAP_BAND_SELECTION	                \
-		(3 << EEPROM_SKU_CAP_BAND_POS)
 #define EEPROM_SKU_CAP_BAND_24GHZ			(1 << 4)
 #define EEPROM_SKU_CAP_BAND_52GHZ			(1 << 5)
 #define EEPROM_SKU_CAP_11N_ENABLE	                (1 << 6)