diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c
index 8e2f9afb..41a03b1 100644
--- a/drivers/net/wireless/rtlwifi/efuse.c
+++ b/drivers/net/wireless/rtlwifi/efuse.c
@@ -35,8 +35,6 @@
 static const u8 PGPKT_DATA_SIZE = 8;
 static const int EFUSE_MAX_SIZE = 512;
 
-static const u8 EFUSE_OOB_PROTECT_BYTES = 15;
-
 static const struct efuse_map RTL8712_SDIO_EFUSE_TABLE[] = {
 	{0, 0, 0, 2},
 	{0, 1, 0, 2},
@@ -240,6 +238,7 @@
 	u8 rtemp8[1];
 	u16 efuse_addr = 0;
 	u8 offset, wren;
+	u8 u1temp = 0;
 	u16 i;
 	u16 j;
 	const u16 efuse_max_section =
@@ -285,10 +284,31 @@
 	}
 
 	while ((*rtemp8 != 0xFF) && (efuse_addr < efuse_len)) {
-		offset = ((*rtemp8 >> 4) & 0x0f);
+		/*  Check PG header for section num.  */
+		if ((*rtemp8 & 0x1F) == 0x0F) {/* extended header */
+			u1temp = ((*rtemp8 & 0xE0) >> 5);
+			read_efuse_byte(hw, efuse_addr, rtemp8);
+
+			if ((*rtemp8 & 0x0F) == 0x0F) {
+				efuse_addr++;
+				read_efuse_byte(hw, efuse_addr, rtemp8);
+
+				if (*rtemp8 != 0xFF &&
+				    (efuse_addr < efuse_len)) {
+					efuse_addr++;
+				}
+				continue;
+			} else {
+				offset = ((*rtemp8 & 0xF0) >> 1) | u1temp;
+				wren = (*rtemp8 & 0x0F);
+				efuse_addr++;
+			}
+		} else {
+			offset = ((*rtemp8 >> 4) & 0x0f);
+			wren = (*rtemp8 & 0x0f);
+		}
 
 		if (offset < efuse_max_section) {
-			wren = (*rtemp8 & 0x0f);
 			RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 				"offset-%d Worden=%x\n", offset, wren);
 
@@ -391,7 +411,8 @@
 	efuse_used = rtlefuse->efuse_usedbytes;
 
 	if ((totalbytes + efuse_used) >=
-	    (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))
+	    (EFUSE_MAX_SIZE -
+	     rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))
 		result = false;
 
 	RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
@@ -932,8 +953,8 @@
 	u8 badworden = 0x0F;
 	static int repeat_times;
 
-	if (efuse_get_current_size(hw) >=
-	    (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
+	if (efuse_get_current_size(hw) >= (EFUSE_MAX_SIZE -
+	    rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
 		RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 			"efuse_pg_packet_write error\n");
 		return false;
@@ -949,8 +970,8 @@
 
 	RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,  "efuse Power ON\n");
 
-	while (continual && (efuse_addr <
-	       (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))) {
+	while (continual && (efuse_addr < (EFUSE_MAX_SIZE -
+	       rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))) {
 
 		if (write_state == PG_STATE_HEADER) {
 			badworden = 0x0F;
@@ -1003,7 +1024,8 @@
 		}
 	}
 
-	if (efuse_addr >= (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
+	if (efuse_addr >= (EFUSE_MAX_SIZE -
+	    rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
 		RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 			 "efuse_addr(%#x) Out of size!!\n", efuse_addr);
 	}