diff --git a/lib/sw_services/xilisf/src/include/xilisf.h b/lib/sw_services/xilisf/src/include/xilisf.h
index 0a6d4e58..4d84ff33 100644
--- a/lib/sw_services/xilisf/src/include/xilisf.h
+++ b/lib/sw_services/xilisf/src/include/xilisf.h
@@ -494,6 +494,8 @@
 *               APIs were added to enter and exit from 4 byte mode. Changes were
 *               made in read, erase and write APIs to support 4 byte mode.
 *               These were done to fix CR#858950.
+* 5.3  sk    06/01/15 Used Half of Actual byte count for calculating
+*                     Real Byte count in parallel mode. CR# 859979.
 *
 * </pre>
 *
diff --git a/lib/sw_services/xilisf/src/xilisf_read.c b/lib/sw_services/xilisf/src/xilisf_read.c
index ae999aee..a40a7eaf 100644
--- a/lib/sw_services/xilisf/src/xilisf_read.c
+++ b/lib/sw_services/xilisf/src/xilisf_read.c
@@ -55,6 +55,8 @@
 *
 * 5.2  asa       05/12/15 Added support for Micron (N25Q256A) flash part
 * 						  which supports 4 byte addressing.
+* 5.3  sk        06/01/15 Used Half of Actual byte count for calculating
+*                         Real Byte count in parallel mode. CR# 859979.
 * </pre>
 *
 ******************************************************************************/
@@ -367,6 +369,7 @@ static int ReadData(XIsf *InstancePtr, u32 Address, u8 *ReadPtr, u32 ByteCount)
 	u32 TotalByteCnt = ByteCount;
 	u32 LocalByteCnt = ByteCount;
 	u32 LocalAddress = Address;
+	u32 TempByteCnt = LocalByteCnt;
 	u8 WriteBuffer[10] = {0};
 	if (LocalByteCnt <= 0 ) {
 		return (int)XST_FAILURE;
@@ -408,12 +411,17 @@ static int ReadData(XIsf *InstancePtr, u32 Address, u8 *ReadPtr, u32 ByteCount)
 		XIsf_SetTransferMode(InstancePtr, Mode);
 	}
 
+	if(InstancePtr->SpiInstPtr->Config.ConnectionMode ==
+			XQSPIPS_CONNECTION_MODE_PARALLEL) {
+		TempByteCnt = LocalByteCnt/2;
+	}
+
 	/*
 	 * If data to be read spans beyond the current bank, then
 	 * calculate RealByteCnt in current bank. Else
 	 * RealByteCnt is the same as ByteCount
 	 */
-	if((RealAddr & BANKMASK) != ((RealAddr+LocalByteCnt) & BANKMASK)) {
+	if((RealAddr & BANKMASK) != ((RealAddr+TempByteCnt) & BANKMASK)) {
 		RealByteCnt = ((RealAddr & BANKMASK) + SIXTEENMB) - RealAddr;
 	}
 	else {
@@ -528,6 +536,7 @@ static int FastReadData(XIsf *InstancePtr, u8 Command, u32 Address,
 	u32 TotalByteCnt = ByteCount;
 	u32 LocalByteCnt = ByteCount;
 	u32 LocalAddress = Address;
+	u32 TempByteCnt = LocalByteCnt;
 	u8 WriteBuffer[5]= {0};
 
 	if (LocalByteCnt <= 0 ) {
@@ -573,12 +582,16 @@ static int FastReadData(XIsf *InstancePtr, u8 Command, u32 Address,
 		XIsf_SetTransferMode(InstancePtr, Mode);
 	}
 
+	if(InstancePtr->SpiInstPtr->Config.ConnectionMode ==
+			XQSPIPS_CONNECTION_MODE_PARALLEL) {
+		TempByteCnt = LocalByteCnt/2;
+	}
 	/*
 	 * If data to be read spans beyond the current bank, then
 	 * calculate RealByteCnt in current bank. Else
 	 * RealByteCnt is the same as ByteCount
 	 */
-	if((RealAddr & BANKMASK) != ((RealAddr+LocalByteCnt) & BANKMASK)) {
+	if((RealAddr & BANKMASK) != ((RealAddr+TempByteCnt) & BANKMASK)) {
 		RealByteCnt = ((RealAddr & BANKMASK) + SIXTEENMB) - RealAddr;
 	}
 	else {