diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index cbf7271..e5b062c 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -101,6 +101,7 @@
 	char *fw_image_sta;
 	char *fw_image_ap;
 	struct rxd_ops *ap_rxd_ops;
+	u32 fw_api_ap;
 };
 
 struct mwl8k_rx_queue {
@@ -1827,6 +1828,7 @@
 	__le32 wcbbase1;
 	__le32 wcbbase2;
 	__le32 wcbbase3;
+	__le32 fw_api_version;
 } __packed;
 
 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
@@ -1834,6 +1836,7 @@
 	struct mwl8k_priv *priv = hw->priv;
 	struct mwl8k_cmd_get_hw_spec_ap *cmd;
 	int rc;
+	u32 api_version;
 
 	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 	if (cmd == NULL)
@@ -1850,6 +1853,16 @@
 	if (!rc) {
 		int off;
 
+		api_version = le32_to_cpu(cmd->fw_api_version);
+		if (priv->device_info->fw_api_ap != api_version) {
+			printk(KERN_ERR "%s: Unsupported fw API version for %s."
+			       "  Expected %d got %d.\n", MWL8K_NAME,
+			       priv->device_info->part_name,
+			       priv->device_info->fw_api_ap,
+			       api_version);
+			rc = -EINVAL;
+			goto done;
+		}
 		SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
 		priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
 		priv->fw_rev = le32_to_cpu(cmd->fw_rev);
@@ -1877,6 +1890,7 @@
 		iowrite32(priv->txq[3].txd_dma, priv->sram + off);
 	}
 
+done:
 	kfree(cmd);
 	return rc;
 }
@@ -3939,6 +3953,10 @@
 	MWL8366,
 };
 
+#define MWL8K_8366_AP_FW_API 1
+#define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
+#define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
+
 static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = {
 	[MWL8363] = {
 		.part_name	= "88w8363",
@@ -3954,7 +3972,8 @@
 		.part_name	= "88w8366",
 		.helper_image	= "mwl8k/helper_8366.fw",
 		.fw_image_sta	= "mwl8k/fmimage_8366.fw",
-		.fw_image_ap	= "mwl8k/fmimage_8366_ap-1.fw",
+		.fw_image_ap	= MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
+		.fw_api_ap	= MWL8K_8366_AP_FW_API,
 		.ap_rxd_ops	= &rxd_8366_ap_ops,
 	},
 };
@@ -3965,7 +3984,7 @@
 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
-MODULE_FIRMWARE("mwl8k/fmimage_8366_ap-1.fw");
+MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
 
 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
 	{ PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },