--- u-boot_orig/arch/arm/cpu/astcommon/regs-p2x.h	1969-12-31 19:00:00.000000000 -0500
+++ u-boot_mod/arch/arm/cpu/astcommon/regs-p2x.h	2015-12-23 20:00:56.628568455 -0500
@@ -0,0 +1,59 @@
+/* arch/arm/mach-aspeed/include/mach/regs-ast1010-scu.h
+ *
+ * Copyright (C) 2012-2020  ASPEED Technology Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *   History      : 
+ *    1. 2012/12/29 Ryan Chen Create
+ * 
+********************************************************************************/
+#ifndef __AST_P2X_H
+#define __AST_P2X_H                     1
+
+/*
+ *  Register for MCTP 
+ *  */
+#define AST_P2X_CTRL			0x00		/*	Engine Status and Engine Control	*/
+#define AST_P2X_INT				0x04		/*	Interrupt Enable and Status Register */
+#define AST_P2X_ID				0x08		/*	Target ID and Mask */
+#define AST_P2X_TX_DESC3		0x10		/*	Sending Descriptor [127:96] */
+#define AST_P2X_TX_DESC2		0x14		/*	Sending Descriptor [95:64] */
+#define AST_P2X_TX_DESC1		0x18		/*	Sending Descriptor [63:32] */
+#define AST_P2X_TX_DESC0		0x1C		/*	Sending Descriptor [31:0] */
+#define AST_P2X_TX_DATA			0x20		/*	Sending Data Port */
+#define AST_P2X_RX_DESC3		0x40		/*	Received Descriptor [127:96] */
+#define AST_P2X_RX_DESC2		0x44		/*	Received Descriptor [95:64] */
+#define AST_P2X_RX_DESC1		0x48		/*	Received Descriptor [63:32] */
+#define AST_P2X_RX_DESC0		0x4C		/*	Received Descriptor [31:0] */
+#define AST_P2X_RX_DATA			0x50		/*	Received Data Port */
+
+#define AST_P2X_MSI_IER			0x70		/*	MSI interrupt enalbe */
+#define AST_P2X_MSI_ISR			0x74		/*	MSI interrupt sts */
+
+#define AST_P2X_DEC_ADDR		0x80		/*	ADDR */
+#define AST_P2X_DEC_MASK		0x84		/*	MASK */
+#define AST_P2X_DEC_TAG			0x88		/*	TAG */
+
+/*	AST_P2X_CTRL			0x00		Engine Status and Engine Control	*/
+
+/*	AST_P2X_INT			0x04		Interrupt Enable and Status Register */
+#define P2X_INTD_EN				(1 << 21)
+#define P2X_INTC_EN				(1 << 20)
+#define P2X_INTB_EN				(1 << 19)
+#define P2X_INTA_EN				(1 << 18)
+#define P2X_RX_INT_EN			(1 << 17)
+#define P2X_TX_INT_EN			(1 << 16)
+
+#define P2X_MSI					(1 << 6)
+#define P2X_INTD				(1 << 5)
+#define P2X_INTC					(1 << 4)
+#define P2X_INTB					(1 << 3)
+#define P2X_INTA				(1 << 2)
+#define P2X_RX_COMPLETE		(1 << 1)
+#define P2X_TX_COMPLETE		(1)
+
+#endif
+