board: xilinx: Remove common folder

All these files was used for ancient xilinx drivers
which are finally gone.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Rommel Custodio <sessyargc@gmail.com>

16 files changed, 0 insertions, 5865 deletions

diff --git a/board/xilinx/common/xbasic_types.c b/board/xilinx/common/xbasic_types.c
deleted file mode 100644
index c3a171a35..000000000
--- a/board/xilinx/common/xbasic_types.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-     *
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************/
-/**
-*
-* @file xbasic_types.c
-*
-* This file contains basic functions for Xilinx software IP.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver   Who    Date   Changes
-* ----- ---- -------- -------------------------------------------------------
-* 1.00a rpm  11/07/03 Added XNullHandler function as a stub interrupt handler
-* </pre>
-*
-******************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-
-/************************** Constant Definitions *****************************/
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Variable Definitions *****************************/
-
-/**
- * This variable allows testing to be done easier with asserts. An assert
- * sets this variable such that a driver can evaluate this variable
- * to determine if an assert occurred.
- */
-unsigned int XAssertStatus;
-
-/**
- * This variable allows the assert functionality to be changed for testing
- * such that it does not wait infinitely. Use the debugger to disable the
- * waiting during testing of asserts.
- */
-u32 XWaitInAssert = TRUE;
-
-/* The callback function to be invoked when an assert is taken */
-static XAssertCallback XAssertCallbackRoutine = (XAssertCallback) NULL;
-
-/************************** Function Prototypes ******************************/
-
-/*****************************************************************************/
-/**
-*
-* Implements assert. Currently, it calls a user-defined callback function
-* if one has been set.  Then, it potentially enters an infinite loop depending
-* on the value of the XWaitInAssert variable.
-*
-* @param    File is the name of the filename of the source
-* @param    Line is the linenumber within File
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-void
-XAssert(char *File, int Line)
-{
-	/* if the callback has been set then invoke it */
-	if (XAssertCallbackRoutine != NULL) {
-		(*XAssertCallbackRoutine) (File, Line);
-	}
-
-	/* if specified, wait indefinitely such that the assert will show up
-	 * in testing
-	 */
-	while (XWaitInAssert) {
-	}
-}
-
-/*****************************************************************************/
-/**
-*
-* Sets up a callback function to be invoked when an assert occurs. If there
-* was already a callback installed, then it is replaced.
-*
-* @param    Routine is the callback to be invoked when an assert is taken
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* This function has no effect if NDEBUG is set
-*
-******************************************************************************/
-void
-XAssertSetCallback(XAssertCallback Routine)
-{
-	XAssertCallbackRoutine = Routine;
-}
-
-/*****************************************************************************/
-/**
-*
-* Null handler function. This follows the XInterruptHandler signature for
-* interrupt handlers. It can be used to assign a null handler (a stub) to an
-* interrupt controller vector table.
-*
-* @param    NullParameter is an arbitrary void pointer and not used.
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-void
-XNullHandler(void *NullParameter)
-{
-}
diff --git a/board/xilinx/common/xbasic_types.h b/board/xilinx/common/xbasic_types.h
deleted file mode 100644
index ef0b7c255..000000000
--- a/board/xilinx/common/xbasic_types.h
+++ /dev/null
@@ -1,283 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************/
-/**
-*
-* @file xbasic_types.h
-*
-* This file contains basic types for Xilinx software IP.  These types do not
-* follow the standard naming convention with respect to using the component
-* name in front of each name because they are considered to be primitives.
-*
-* @note
-*
-* This file contains items which are architecture dependent.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver	Who    Date   Changes
-* ----- ---- -------- -------------------------------------------------------
-* 1.00a rmm  12/14/01 First release
-*	rmm  05/09/03 Added "xassert always" macros to rid ourselves of diab
-*		      compiler warnings
-* 1.00a rpm  11/07/03 Added XNullHandler function as a stub interrupt handler
-* </pre>
-*
-******************************************************************************/
-
-#ifndef XBASIC_TYPES_H		/* prevent circular inclusions */
-#define XBASIC_TYPES_H		/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-/************************** Constant Definitions *****************************/
-
-#ifndef TRUE
-#define TRUE 1
-#endif
-#ifndef FALSE
-#define FALSE 0
-#endif
-
-#ifndef NULL
-#define NULL 0
-#endif
-/** Null */
-
-#define XCOMPONENT_IS_READY	0x11111111	/* component has been initialized */
-#define XCOMPONENT_IS_STARTED	0x22222222	/* component has been started */
-
-/* the following constants and declarations are for unit test purposes and are
- * designed to be used in test applications.
- */
-#define XTEST_PASSED	0
-#define XTEST_FAILED	1
-
-#define XASSERT_NONE	 0
-#define XASSERT_OCCURRED 1
-
-extern unsigned int XAssertStatus;
-extern void XAssert(char *, int);
-
-/**************************** Type Definitions *******************************/
-
-/** @name Primitive types
- * These primitive types are created for transportability.
- * They are dependent upon the target architecture.
- * @{
- */
-#include <linux/types.h>
-
-typedef struct {
-	u32 Upper;
-	u32 Lower;
-} Xuint64;
-
-/*@}*/
-
-/**
- * This data type defines an interrupt handler for a device.
- * The argument points to the instance of the component
- */
-typedef void (*XInterruptHandler) (void *InstancePtr);
-
-/**
- * This data type defines a callback to be invoked when an
- * assert occurs. The callback is invoked only when asserts are enabled
- */
-typedef void (*XAssertCallback) (char *FilenamePtr, int LineNumber);
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/*****************************************************************************/
-/**
-* Return the most significant half of the 64 bit data type.
-*
-* @param x is the 64 bit word.
-*
-* @return
-*
-* The upper 32 bits of the 64 bit word.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XUINT64_MSW(x) ((x).Upper)
-
-/*****************************************************************************/
-/**
-* Return the least significant half of the 64 bit data type.
-*
-* @param x is the 64 bit word.
-*
-* @return
-*
-* The lower 32 bits of the 64 bit word.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XUINT64_LSW(x) ((x).Lower)
-
-#ifndef NDEBUG
-
-/*****************************************************************************/
-/**
-* This assert macro is to be used for functions that do not return anything
-* (void). This in conjunction with the XWaitInAssert boolean can be used to
-* accomodate tests so that asserts which fail allow execution to continue.
-*
-* @param expression is the expression to evaluate. If it evaluates to false,
-*	 the assert occurs.
-*
-* @return
-*
-* Returns void unless the XWaitInAssert variable is true, in which case
-* no return is made and an infinite loop is entered.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XASSERT_VOID(expression)			\
-{							\
-	if (expression) {				\
-		XAssertStatus = XASSERT_NONE;		\
-	} else {					\
-		XAssert(__FILE__, __LINE__);		\
-		XAssertStatus = XASSERT_OCCURRED;	\
-		return;					\
-	}						\
-}
-
-/*****************************************************************************/
-/**
-* This assert macro is to be used for functions that do return a value. This in
-* conjunction with the XWaitInAssert boolean can be used to accomodate tests so
-* that asserts which fail allow execution to continue.
-*
-* @param expression is the expression to evaluate. If it evaluates to false,
-*	 the assert occurs.
-*
-* @return
-*
-* Returns 0 unless the XWaitInAssert variable is true, in which case
-* no return is made and an infinite loop is entered.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XASSERT_NONVOID(expression)		   \
-{						   \
-	if (expression) {			   \
-		XAssertStatus = XASSERT_NONE;	   \
-	} else {				   \
-		XAssert(__FILE__, __LINE__);	   \
-		XAssertStatus = XASSERT_OCCURRED;  \
-		return 0;			   \
-	}					   \
-}
-
-/*****************************************************************************/
-/**
-* Always assert. This assert macro is to be used for functions that do not
-* return anything (void). Use for instances where an assert should always
-* occur.
-*
-* @return
-*
-* Returns void unless the XWaitInAssert variable is true, in which case
-* no return is made and an infinite loop is entered.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XASSERT_VOID_ALWAYS()			   \
-{						   \
-	XAssert(__FILE__, __LINE__);		   \
-	XAssertStatus = XASSERT_OCCURRED;	   \
-	return;					   \
-}
-
-/*****************************************************************************/
-/**
-* Always assert. This assert macro is to be used for functions that do return
-* a value. Use for instances where an assert should always occur.
-*
-* @return
-*
-* Returns void unless the XWaitInAssert variable is true, in which case
-* no return is made and an infinite loop is entered.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-#define XASSERT_NONVOID_ALWAYS()		   \
-{						   \
-	XAssert(__FILE__, __LINE__);		   \
-	XAssertStatus = XASSERT_OCCURRED;	   \
-	return 0;				   \
-}
-
-#else
-
-#define XASSERT_VOID(expression)
-#define XASSERT_VOID_ALWAYS()
-#define XASSERT_NONVOID(expression)
-#define XASSERT_NONVOID_ALWAYS()
-#endif
-
-/************************** Function Prototypes ******************************/
-
-void XAssertSetCallback(XAssertCallback Routine);
-void XNullHandler(void *NullParameter);
-
-#endif	/* end of protection macro */
diff --git a/board/xilinx/common/xbuf_descriptor.h b/board/xilinx/common/xbuf_descriptor.h
deleted file mode 100644
index fdd51d58d..000000000
--- a/board/xilinx/common/xbuf_descriptor.h
+++ /dev/null
@@ -1,252 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-* FILENAME:
-*
-* xbuf_descriptor.h
-*
-* DESCRIPTION:
-*
-* This file contains the interface for the XBufDescriptor component.
-* The XBufDescriptor component is a passive component that only maps over
-* a buffer descriptor data structure shared by the scatter gather DMA hardware
-* and software. The component's primary purpose is to provide encapsulation of
-* the buffer descriptor processing.  See the source file xbuf_descriptor.c for
-* details.
-*
-* NOTES:
-*
-* Most of the functions of this component are implemented as macros in order
-* to optimize the processing.  The names are not all uppercase such that they
-* can be switched between macros and functions easily.
-*
-******************************************************************************/
-
-#ifndef XBUF_DESCRIPTOR_H	/* prevent circular inclusions */
-#define XBUF_DESCRIPTOR_H	/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xdma_channel_i.h"
-
-/************************** Constant Definitions *****************************/
-
-/* The following constants allow access to all fields of a buffer descriptor
- * and are necessary at this level of visibility to allow macros to access
- * and modify the fields of a buffer descriptor.  It is not expected that the
- * user of a buffer descriptor would need to use these constants.
- */
-
-#define XBD_DEVICE_STATUS_OFFSET    0
-#define XBD_CONTROL_OFFSET	    1
-#define XBD_SOURCE_OFFSET	    2
-#define XBD_DESTINATION_OFFSET	    3
-#define XBD_LENGTH_OFFSET	    4
-#define XBD_STATUS_OFFSET	    5
-#define XBD_NEXT_PTR_OFFSET	    6
-#define XBD_ID_OFFSET		    7
-#define XBD_FLAGS_OFFSET	    8
-#define XBD_RQSTED_LENGTH_OFFSET    9
-
-#define XBD_SIZE_IN_WORDS	    10
-
-/*
- * The following constants define the bits of the flags field of a buffer
- * descriptor
- */
-
-#define XBD_FLAGS_LOCKED_MASK	    1UL
-
-/**************************** Type Definitions *******************************/
-
-typedef u32 XBufDescriptor[XBD_SIZE_IN_WORDS];
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/* each of the following macros are named the same as functions rather than all
- * upper case in order to allow either the macros or the functions to be
- * used, see the source file xbuf_descriptor.c for documentation
- */
-
-#define XBufDescriptor_Initialize(InstancePtr)			\
-{								\
-    (*((u32 *)InstancePtr + XBD_CONTROL_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_SOURCE_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_DESTINATION_OFFSET) = 0);   \
-    (*((u32 *)InstancePtr + XBD_LENGTH_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_STATUS_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_DEVICE_STATUS_OFFSET) = 0); \
-    (*((u32 *)InstancePtr + XBD_NEXT_PTR_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_ID_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_FLAGS_OFFSET) = 0);	    \
-    (*((u32 *)InstancePtr + XBD_RQSTED_LENGTH_OFFSET) = 0); \
-}
-
-#define XBufDescriptor_GetControl(InstancePtr)	 \
-    (u32)(*((u32 *)InstancePtr + XBD_CONTROL_OFFSET))
-
-#define XBufDescriptor_SetControl(InstancePtr, Control)	 \
-    (*((u32 *)InstancePtr + XBD_CONTROL_OFFSET) = (u32)Control)
-
-#define XBufDescriptor_IsLastControl(InstancePtr) \
-    (u32)(*((u32 *)InstancePtr + XBD_CONTROL_OFFSET) & \
-	       XDC_CONTROL_LAST_BD_MASK)
-
-#define XBufDescriptor_SetLast(InstancePtr) \
-    (*((u32 *)InstancePtr + XBD_CONTROL_OFFSET) |= XDC_CONTROL_LAST_BD_MASK)
-
-#define XBufDescriptor_GetSrcAddress(InstancePtr) \
-    ((u32 *)(*((u32 *)InstancePtr + XBD_SOURCE_OFFSET)))
-
-#define XBufDescriptor_SetSrcAddress(InstancePtr, Source) \
-    (*((u32 *)InstancePtr + XBD_SOURCE_OFFSET) = (u32)Source)
-
-#define XBufDescriptor_GetDestAddress(InstancePtr) \
-    ((u32 *)(*((u32 *)InstancePtr + XBD_DESTINATION_OFFSET)))
-
-#define XBufDescriptor_SetDestAddress(InstancePtr, Destination) \
-    (*((u32 *)InstancePtr + XBD_DESTINATION_OFFSET) = (u32)Destination)
-
-#define XBufDescriptor_GetLength(InstancePtr)				\
-    (u32)(*((u32 *)InstancePtr + XBD_RQSTED_LENGTH_OFFSET) -	\
-	      *((u32 *)InstancePtr + XBD_LENGTH_OFFSET))
-
-#define XBufDescriptor_SetLength(InstancePtr, Length)			    \
-{									    \
-    (*((u32 *)InstancePtr + XBD_LENGTH_OFFSET) = (u32)(Length));    \
-    (*((u32 *)InstancePtr + XBD_RQSTED_LENGTH_OFFSET) = (u32)(Length));\
-}
-
-#define XBufDescriptor_GetStatus(InstancePtr)	 \
-    (u32)(*((u32 *)InstancePtr + XBD_STATUS_OFFSET))
-
-#define XBufDescriptor_SetStatus(InstancePtr, Status)	 \
-    (*((u32 *)InstancePtr + XBD_STATUS_OFFSET) = (u32)Status)
-
-#define XBufDescriptor_IsLastStatus(InstancePtr) \
-    (u32)(*((u32 *)InstancePtr + XBD_STATUS_OFFSET) & \
-	       XDC_STATUS_LAST_BD_MASK)
-
-#define XBufDescriptor_GetDeviceStatus(InstancePtr) \
-    ((u32)(*((u32 *)InstancePtr + XBD_DEVICE_STATUS_OFFSET)))
-
-#define XBufDescriptor_SetDeviceStatus(InstancePtr, Status) \
-    (*((u32 *)InstancePtr + XBD_DEVICE_STATUS_OFFSET) = (u32)Status)
-
-#define XBufDescriptor_GetNextPtr(InstancePtr) \
-    (XBufDescriptor *)(*((u32 *)InstancePtr + XBD_NEXT_PTR_OFFSET))
-
-#define XBufDescriptor_SetNextPtr(InstancePtr, NextPtr) \
-    (*((u32 *)InstancePtr + XBD_NEXT_PTR_OFFSET) = (u32)NextPtr)
-
-#define XBufDescriptor_GetId(InstancePtr) \
-    (u32)(*((u32 *)InstancePtr + XBD_ID_OFFSET))
-
-#define XBufDescriptor_SetId(InstancePtr, Id) \
-    (*((u32 *)InstancePtr + XBD_ID_OFFSET) = (u32)Id)
-
-#define XBufDescriptor_GetFlags(InstancePtr) \
-    (u32)(*((u32 *)InstancePtr + XBD_FLAGS_OFFSET))
-
-#define XBufDescriptor_SetFlags(InstancePtr, Flags) \
-    (*((u32 *)InstancePtr + XBD_FLAGS_OFFSET) = (u32)Flags)
-
-#define XBufDescriptor_Lock(InstancePtr) \
-    (*((u32 *)InstancePtr + XBD_FLAGS_OFFSET) |= XBD_FLAGS_LOCKED_MASK)
-
-#define XBufDescriptor_Unlock(InstancePtr) \
-    (*((u32 *)InstancePtr + XBD_FLAGS_OFFSET) &= ~XBD_FLAGS_LOCKED_MASK)
-
-#define XBufDescriptor_IsLocked(InstancePtr) \
-    (*((u32 *)InstancePtr + XBD_FLAGS_OFFSET) & XBD_FLAGS_LOCKED_MASK)
-
-/************************** Function Prototypes ******************************/
-
-/* The following prototypes are provided to allow each of the functions to
- * be implemented as a function rather than a macro, and to provide the
- * syntax to allow users to understand how to call the macros, they are
- * commented out to prevent linker errors
- *
-
-u32 XBufDescriptor_Initialize(XBufDescriptor* InstancePtr);
-
-u32 XBufDescriptor_GetControl(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetControl(XBufDescriptor* InstancePtr, u32 Control);
-
-u32 XBufDescriptor_IsLastControl(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetLast(XBufDescriptor* InstancePtr);
-
-u32 XBufDescriptor_GetLength(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetLength(XBufDescriptor* InstancePtr, u32 Length);
-
-u32 XBufDescriptor_GetStatus(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetStatus(XBufDescriptor* InstancePtr, u32 Status);
-u32 XBufDescriptor_IsLastStatus(XBufDescriptor* InstancePtr);
-
-u32 XBufDescriptor_GetDeviceStatus(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetDeviceStatus(XBufDescriptor* InstancePtr,
-				    u32 Status);
-
-u32 XBufDescriptor_GetSrcAddress(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetSrcAddress(XBufDescriptor* InstancePtr,
-				  u32 SourceAddress);
-
-u32 XBufDescriptor_GetDestAddress(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetDestAddress(XBufDescriptor* InstancePtr,
-				   u32 DestinationAddress);
-
-XBufDescriptor* XBufDescriptor_GetNextPtr(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetNextPtr(XBufDescriptor* InstancePtr,
-			       XBufDescriptor* NextPtr);
-
-u32 XBufDescriptor_GetId(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetId(XBufDescriptor* InstancePtr, u32 Id);
-
-u32 XBufDescriptor_GetFlags(XBufDescriptor* InstancePtr);
-void XBufDescriptor_SetFlags(XBufDescriptor* InstancePtr, u32 Flags);
-
-void XBufDescriptor_Lock(XBufDescriptor* InstancePtr);
-void XBufDescriptor_Unlock(XBufDescriptor* InstancePtr);
-u32 XBufDescriptor_IsLocked(XBufDescriptor* InstancePtr);
-
-void XBufDescriptor_Copy(XBufDescriptor* InstancePtr,
-			 XBufDescriptor* DestinationPtr);
-
-*/
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xdma_channel.c b/board/xilinx/common/xdma_channel.c
deleted file mode 100644
index f81613824..000000000
--- a/board/xilinx/common/xdma_channel.c
+++ /dev/null
@@ -1,738 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-* FILENAME:
-*
-* xdma_channel.c
-*
-* DESCRIPTION:
-*
-* This file contains the DMA channel component. This component supports
-* a distributed DMA design in which each device can have it's own dedicated
-* DMA channel, as opposed to a centralized DMA design. This component
-* performs processing for DMA on all devices.
-*
-* See xdma_channel.h for more information about this component.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xdma_channel.h"
-#include "xbasic_types.h"
-#include "xio.h"
-
-/************************** Constant Definitions *****************************/
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_Initialize
-*
-* DESCRIPTION:
-*
-* This function initializes a DMA channel.  This function must be called
-* prior to using a DMA channel.  Initialization of a channel includes setting
-* up the registers base address, and resetting the channel such that it's in a
-* known state.  Interrupts for the channel are disabled when the channel is
-* reset.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* BaseAddress contains the base address of the registers for the DMA channel.
-*
-* RETURN VALUE:
-*
-* XST_SUCCESS indicating initialization was successful.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_Initialize(XDmaChannel * InstancePtr, u32 BaseAddress)
-{
-	/* assert to verify input arguments, don't assert base address */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-
-	/* setup the base address of the registers for the DMA channel such
-	 * that register accesses can be done
-	 */
-	InstancePtr->RegBaseAddress = BaseAddress;
-
-	/* initialize the scatter gather list such that it indicates it has not
-	 * been created yet and the DMA channel is ready to use (initialized)
-	 */
-	InstancePtr->GetPtr = NULL;
-	InstancePtr->PutPtr = NULL;
-	InstancePtr->CommitPtr = NULL;
-	InstancePtr->LastPtr = NULL;
-
-	InstancePtr->TotalDescriptorCount = 0;
-	InstancePtr->ActiveDescriptorCount = 0;
-	InstancePtr->IsReady = XCOMPONENT_IS_READY;
-
-	/* initialize the version of the component
-	 */
-	XVersion_FromString(&InstancePtr->Version, (s8 *)"1.00a");
-
-	/* reset the DMA channel such that it's in a known state and ready
-	 * and indicate the initialization occured with no errors, note that
-	 * the is ready variable must be set before this call or reset will assert
-	 */
-	XDmaChannel_Reset(InstancePtr);
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_IsReady
-*
-* DESCRIPTION:
-*
-* This function determines if a DMA channel component has been successfully
-* initialized such that it's ready to use.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* TRUE if the DMA channel component is ready, FALSE otherwise.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_IsReady(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments used by the base component */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-
-	return InstancePtr->IsReady == XCOMPONENT_IS_READY;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetVersion
-*
-* DESCRIPTION:
-*
-* This function gets the software version for the specified DMA channel
-* component.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* A pointer to the software version of the specified DMA channel.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-XVersion *
-XDmaChannel_GetVersion(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* return a pointer to the version of the DMA channel */
-
-	return &InstancePtr->Version;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SelfTest
-*
-* DESCRIPTION:
-*
-* This function performs a self test on the specified DMA channel.  This self
-* test is destructive as the DMA channel is reset and a register default is
-* verified.
-*
-* ARGUMENTS:
-*
-* InstancePtr is a pointer to the DMA channel to be operated on.
-*
-* RETURN VALUE:
-*
-* XST_SUCCESS is returned if the self test is successful, or one of the
-* following errors.
-*
-*	XST_DMA_RESET_REGISTER_ERROR		Indicates the control register value
-*										after a reset was not correct
-*
-* NOTES:
-*
-* This test does not performs a DMA transfer to test the channel because the
-* DMA hardware will not currently allow a non-local memory transfer to non-local
-* memory (memory copy), but only allows a non-local memory to or from the device
-* memory (typically a FIFO).
-*
-******************************************************************************/
-
-#define XDC_CONTROL_REG_RESET_MASK  0x98000000UL	/* control reg reset value */
-
-XStatus
-XDmaChannel_SelfTest(XDmaChannel * InstancePtr)
-{
-	u32 ControlReg;
-
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* reset the DMA channel such that it's in a known state before the test
-	 * it resets to no interrupts enabled, the desired state for the test
-	 */
-	XDmaChannel_Reset(InstancePtr);
-
-	/* this should be the first test to help prevent a lock up with the polling
-	 * loop that occurs later in the test, check the reset value of the DMA
-	 * control register to make sure it's correct, return with an error if not
-	 */
-	ControlReg = XDmaChannel_GetControl(InstancePtr);
-	if (ControlReg != XDC_CONTROL_REG_RESET_MASK) {
-		return XST_DMA_RESET_REGISTER_ERROR;
-	}
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_Reset
-*
-* DESCRIPTION:
-*
-* This function resets the DMA channel. This is a destructive operation such
-* that it should not be done while a channel is being used.  If the DMA channel
-* is transferring data into other blocks, such as a FIFO, it may be necessary
-* to reset other blocks.  This function does not modify the contents of a
-* scatter gather list for a DMA channel such that the user is responsible for
-* getting buffer descriptors from the list if necessary.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_Reset(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* reset the DMA channel such that it's in a known state, the reset
-	 * register is self clearing such that it only has to be set
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_RST_REG_OFFSET,
-		  XDC_RESET_MASK);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetControl
-*
-* DESCRIPTION:
-*
-* This function gets the control register contents of the DMA channel.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* The control register contents of the DMA channel. One or more of the
-* following values may be contained the register.  Each of the values are
-* unique bit masks.
-*
-*	XDC_DMACR_SOURCE_INCR_MASK	Increment the source address
-*	XDC_DMACR_DEST_INCR_MASK	Increment the destination address
-*	XDC_DMACR_SOURCE_LOCAL_MASK Local source address
-*	XDC_DMACR_DEST_LOCAL_MASK	Local destination address
-*	XDC_DMACR_SG_ENABLE_MASK	Scatter gather enable
-*	XDC_DMACR_GEN_BD_INTR_MASK	Individual buffer descriptor interrupt
-*	XDC_DMACR_LAST_BD_MASK		Last buffer descriptor in a packet
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetControl(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* return the contents of the DMA control register */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_DMAC_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SetControl
-*
-* DESCRIPTION:
-*
-* This function sets the control register of the specified DMA channel.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* Control contains the value to be written to the control register of the DMA
-* channel. One or more of the following values may be contained the register.
-* Each of the values are unique bit masks such that they may be ORed together
-* to enable multiple bits or inverted and ANDed to disable multiple bits.
-*
-*	XDC_DMACR_SOURCE_INCR_MASK	Increment the source address
-*	XDC_DMACR_DEST_INCR_MASK	Increment the destination address
-*	XDC_DMACR_SOURCE_LOCAL_MASK Local source address
-*	XDC_DMACR_DEST_LOCAL_MASK	Local destination address
-*	XDC_DMACR_SG_ENABLE_MASK	Scatter gather enable
-*	XDC_DMACR_GEN_BD_INTR_MASK	Individual buffer descriptor interrupt
-*	XDC_DMACR_LAST_BD_MASK		Last buffer descriptor in a packet
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_SetControl(XDmaChannel * InstancePtr, u32 Control)
-{
-	/* assert to verify input arguments except the control which can't be
-	 * asserted since all values are valid
-	 */
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* set the DMA control register to the specified value */
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_DMAC_REG_OFFSET, Control);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetStatus
-*
-* DESCRIPTION:
-*
-* This function gets the status register contents of the DMA channel.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* The status register contents of the DMA channel. One or more of the
-* following values may be contained the register. Each of the values are
-* unique bit masks.
-*
-*	XDC_DMASR_BUSY_MASK			The DMA channel is busy
-*	XDC_DMASR_BUS_ERROR_MASK	A bus error occurred
-*	XDC_DMASR_BUS_TIMEOUT_MASK	A bus timeout occurred
-*	XDC_DMASR_LAST_BD_MASK		The last buffer descriptor of a packet
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetStatus(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* return the contents of the DMA status register */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_DMAS_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SetIntrStatus
-*
-* DESCRIPTION:
-*
-* This function sets the interrupt status register of the specified DMA channel.
-* Setting any bit of the interrupt status register will clear the bit to
-* indicate the interrupt processing has been completed. The definitions of each
-* bit in the register match the definition of the bits in the interrupt enable
-* register.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* Status contains the value to be written to the status register of the DMA
-* channel.  One or more of the following values may be contained the register.
-* Each of the values are unique bit masks such that they may be ORed together
-* to enable multiple bits or inverted and ANDed to disable multiple bits.
-*
-*	XDC_IXR_DMA_DONE_MASK		The dma operation is done
-*	XDC_IXR_DMA_ERROR_MASK	    The dma operation had an error
-*	XDC_IXR_PKT_DONE_MASK	    A packet is complete
-*	XDC_IXR_PKT_THRESHOLD_MASK	The packet count threshold reached
-*	XDC_IXR_PKT_WAIT_BOUND_MASK The packet wait bound reached
-*	XDC_IXR_SG_DISABLE_ACK_MASK The scatter gather disable completed
-*	XDC_IXR_BD_MASK				A buffer descriptor is done
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_SetIntrStatus(XDmaChannel * InstancePtr, u32 Status)
-{
-	/* assert to verify input arguments except the status which can't be
-	 * asserted since all values are valid
-	 */
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* set the interrupt status register with the specified value such that
-	 * all bits which are set in the register are cleared effectively clearing
-	 * any active interrupts
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_IS_REG_OFFSET, Status);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetIntrStatus
-*
-* DESCRIPTION:
-*
-* This function gets the interrupt status register of the specified DMA channel.
-* The interrupt status register indicates which interrupts are active
-* for the DMA channel.  If an interrupt is active, the status register must be
-* set (written) with the bit set for each interrupt which has been processed
-* in order to clear the interrupts.  The definitions of each bit in the register
-* match the definition of the bits in the interrupt enable register.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* The interrupt status register contents of the specified DMA channel.
-* One or more of the following values may be contained the register.
-* Each of the values are unique bit masks.
-*
-*	XDC_IXR_DMA_DONE_MASK		The dma operation is done
-*	XDC_IXR_DMA_ERROR_MASK	    The dma operation had an error
-*	XDC_IXR_PKT_DONE_MASK	    A packet is complete
-*	XDC_IXR_PKT_THRESHOLD_MASK	The packet count threshold reached
-*	XDC_IXR_PKT_WAIT_BOUND_MASK The packet wait bound reached
-*	XDC_IXR_SG_DISABLE_ACK_MASK The scatter gather disable completed
-*	XDC_IXR_SG_END_MASK			Current descriptor was the end of the list
-*	XDC_IXR_BD_MASK				A buffer descriptor is done
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetIntrStatus(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* return the contents of the interrupt status register */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_IS_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SetIntrEnable
-*
-* DESCRIPTION:
-*
-* This function sets the interrupt enable register of the specified DMA
-* channel.  The interrupt enable register contains bits which enable
-* individual interrupts for the DMA channel.  The definitions of each bit
-* in the register match the definition of the bits in the interrupt status
-* register.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* Enable contains the interrupt enable register contents to be written
-* in the DMA channel. One or more of the following values may be contained
-* the register. Each of the values are unique bit masks such that they may be
-* ORed together to enable multiple bits or inverted and ANDed to disable
-* multiple bits.
-*
-*	XDC_IXR_DMA_DONE_MASK		The dma operation is done
-*	XDC_IXR_DMA_ERROR_MASK	    The dma operation had an error
-*	XDC_IXR_PKT_DONE_MASK	    A packet is complete
-*	XDC_IXR_PKT_THRESHOLD_MASK	The packet count threshold reached
-*	XDC_IXR_PKT_WAIT_BOUND_MASK The packet wait bound reached
-*	XDC_IXR_SG_DISABLE_ACK_MASK The scatter gather disable completed
-*	XDC_IXR_SG_END_MASK			Current descriptor was the end of the list
-*	XDC_IXR_BD_MASK				A buffer descriptor is done
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_SetIntrEnable(XDmaChannel * InstancePtr, u32 Enable)
-{
-	/* assert to verify input arguments except the enable which can't be
-	 * asserted since all values are valid
-	 */
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* set the interrupt enable register to the specified value */
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_IE_REG_OFFSET, Enable);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetIntrEnable
-*
-* DESCRIPTION:
-*
-* This function gets the interrupt enable of the DMA channel.  The
-* interrupt enable contains flags which enable individual interrupts for the
-* DMA channel. The definitions of each bit in the register match the definition
-* of the bits in the interrupt status register.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* RETURN VALUE:
-*
-* The interrupt enable of the DMA channel.  One or more of the following values
-* may be contained the register. Each of the values are unique bit masks.
-*
-*	XDC_IXR_DMA_DONE_MASK		The dma operation is done
-*	XDC_IXR_DMA_ERROR_MASK	    The dma operation had an error
-*	XDC_IXR_PKT_DONE_MASK	    A packet is complete
-*	XDC_IXR_PKT_THRESHOLD_MASK	The packet count threshold reached
-*	XDC_IXR_PKT_WAIT_BOUND_MASK The packet wait bound reached
-*	XDC_IXR_SG_DISABLE_ACK_MASK The scatter gather disable completed
-*	XDC_IXR_BD_MASK				A buffer descriptor is done
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetIntrEnable(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* return the contents of the interrupt enable register */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_IE_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_Transfer
-*
-* DESCRIPTION:
-*
-* This function starts the DMA channel transferring data from a memory source
-* to a memory destination. This function only starts the operation and returns
-* before the operation may be complete.  If the interrupt is enabled, an
-* interrupt will be generated when the operation is complete, otherwise it is
-* necessary to poll the channel status to determine when it's complete.  It is
-* the responsibility of the caller to determine when the operation is complete
-* by handling the generated interrupt or polling the status.  It is also the
-* responsibility of the caller to ensure that the DMA channel is not busy with
-* another transfer before calling this function.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.
-*
-* SourcePtr contains a pointer to the source memory where the data is to
-* be tranferred from and must be 32 bit aligned.
-*
-* DestinationPtr contains a pointer to the destination memory where the data
-* is to be transferred and must be 32 bit aligned.
-*
-* ByteCount contains the number of bytes to transfer during the DMA operation.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* The DMA h/w will not currently allow a non-local memory transfer to non-local
-* memory (memory copy), but only allows a non-local memory to or from the device
-* memory (typically a FIFO).
-*
-* It is the responsibility of the caller to ensure that the cache is
-* flushed and invalidated both before and after the DMA operation completes
-* if the memory pointed to is cached. The caller must also ensure that the
-* pointers contain a physical address rather than a virtual address
-* if address translation is being used.
-*
-******************************************************************************/
-void
-XDmaChannel_Transfer(XDmaChannel * InstancePtr,
-		     u32 * SourcePtr, u32 * DestinationPtr, u32 ByteCount)
-{
-	/* assert to verify input arguments and the alignment of any arguments
-	 * which have expected alignments
-	 */
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(SourcePtr != NULL);
-	XASSERT_VOID(((u32) SourcePtr & 3) == 0);
-	XASSERT_VOID(DestinationPtr != NULL);
-	XASSERT_VOID(((u32) DestinationPtr & 3) == 0);
-	XASSERT_VOID(ByteCount != 0);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* setup the source and destination address registers for the transfer */
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_SA_REG_OFFSET,
-		  (u32) SourcePtr);
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_DA_REG_OFFSET,
-		  (u32) DestinationPtr);
-
-	/* start the DMA transfer to copy from the source buffer to the
-	 * destination buffer by writing the length to the length register
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_LEN_REG_OFFSET, ByteCount);
-}
diff --git a/board/xilinx/common/xdma_channel.h b/board/xilinx/common/xdma_channel.h
deleted file mode 100644
index 468598223..000000000
--- a/board/xilinx/common/xdma_channel.h
+++ /dev/null
@@ -1,291 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-* FILENAME:
-*
-* xdma_channel.h
-*
-* DESCRIPTION:
-*
-* This file contains the DMA channel component implementation. This component
-* supports a distributed DMA design in which each device can have it's own
-* dedicated DMA channel, as opposed to a centralized DMA design.
-* A device which uses DMA typically contains two DMA channels, one for
-* sending data and the other for receiving data.
-*
-* This component is designed to be used as a basic building block for
-* designing a device driver. It provides registers accesses such that all
-* DMA processing can be maintained easier, but the device driver designer
-* must still understand all the details of the DMA channel.
-*
-* The DMA channel allows a CPU to minimize the CPU interaction required to move
-* data between a memory and a device.  The CPU requests the DMA channel to
-* perform a DMA operation and typically continues performing other processing
-* until the DMA operation completes.  DMA could be considered a primitive form
-* of multiprocessing such that caching and address translation can be an issue.
-*
-* Scatter Gather Operations
-*
-* The DMA channel may support scatter gather operations. A scatter gather
-* operation automates the DMA channel such that multiple buffers can be
-* sent or received with minimal software interaction with the hardware.  Buffer
-* descriptors, contained in the XBufDescriptor component, are used by the
-* scatter gather operations of the DMA channel to describe the buffers to be
-* processed.
-*
-* Scatter Gather List Operations
-*
-* A scatter gather list may be supported by each DMA channel.  The scatter
-* gather list allows buffer descriptors to be put into the list by a device
-* driver which requires scatter gather.  The hardware processes the buffer
-* descriptors which are contained in the list and modifies the buffer
-* descriptors to reflect the status of the DMA operations.  The device driver
-* is notified by interrupt that specific DMA events occur including scatter
-* gather events.  The device driver removes the completed buffer descriptors
-* from the scatter gather list to evaluate the status of each DMA operation.
-*
-* The scatter gather list is created and buffer descriptors are inserted into
-* the list.  Buffer descriptors are never removed from the list after it's
-* creation such that a put operation copies from a temporary buffer descriptor
-* to a buffer descriptor in the list.  Get operations don't copy from the list
-* to a temporary, but return a pointer to the buffer descriptor in the list.
-* A buffer descriptor in the list may be locked to prevent it from being
-* overwritten by a put operation.  This allows the device driver to get a
-* descriptor from a scatter gather list and prevent it from being overwritten
-* until the buffer associated with the buffer descriptor has been processed.
-*
-* Typical Scatter Gather Processing
-*
-* The following steps illustrate the typical processing to use the
-* scatter gather features of a DMA channel.
-*
-* 1. Create a scatter gather list for the DMA channel which puts empty buffer
-*    descriptors into the list.
-* 2. Create buffer descriptors which describe the buffers to be filled with
-*	 receive data or the buffers which contain data to be sent.
-* 3. Put buffer descriptors into the DMA channel scatter list such that scatter
-*    gather operations are requested.
-* 4. Commit the buffer descriptors in the list such that they are ready to be
-*    used by the DMA channel hardware.
-* 5. Start the scatter gather operations of the DMA channel.
-* 6. Process any interrupts which occur as a result of the scatter gather
-*    operations or poll the DMA channel to determine the status.
-*
-* Interrupts
-*
-* Each DMA channel has the ability to generate an interrupt.  This component
-* does not perform processing for the interrupt as this processing is typically
-* tightly coupled with the device which is using the DMA channel.  It is the
-* responsibility of the caller of DMA functions to manage the interrupt
-* including connecting to the interrupt and enabling/disabling the interrupt.
-*
-* Critical Sections
-*
-* It is the responsibility of the device driver designer to use critical
-* sections as necessary when calling functions of the DMA channel.  This
-* component does not use critical sections and it does access registers using
-* read-modify-write operations.  Calls to DMA functions from a main thread
-* and from an interrupt context could produce unpredictable behavior such that
-* the caller must provide the appropriate critical sections.
-*
-* Address Translation
-*
-* All addresses of data structures which are passed to DMA functions must
-* be physical (real) addresses as opposed to logical (virtual) addresses.
-*
-* Caching
-*
-* The memory which is passed to the function which creates the scatter gather
-* list must not be cached such that buffer descriptors are non-cached.  This
-* is necessary because the buffer descriptors are kept in a ring buffer and
-* not directly accessible to the caller of DMA functions.
-*
-* The caller of DMA functions is responsible for ensuring that any data
-* buffers which are passed to the DMA channel are cache-line aligned if
-* necessary.
-*
-* The caller of DMA functions is responsible for ensuring that any data
-* buffers which are passed to the DMA channel have been flushed from the cache.
-*
-* The caller of DMA functions is responsible for ensuring that the cache is
-* invalidated prior to using any data buffers which are the result of a DMA
-* operation.
-*
-* Memory Alignment
-*
-* The addresses of data buffers which are passed to DMA functions must be
-* 32 bit word aligned since the DMA hardware performs 32 bit word transfers.
-*
-* Mutual Exclusion
-*
-* The functions of the DMA channel are not thread safe such that the caller
-* of all DMA functions is responsible for ensuring mutual exclusion for a
-* DMA channel.  Mutual exclusion across multiple DMA channels is not
-* necessary.
-*
-* NOTES:
-*
-* Many of the provided functions which are register accessors don't provide
-* a lot of error detection. The caller is expected to understand the impact
-* of a function call based upon the current state of the DMA channel.  This
-* is done to minimize the overhead in this component.
-*
-******************************************************************************/
-
-#ifndef XDMA_CHANNEL_H		/* prevent circular inclusions */
-#define XDMA_CHANNEL_H		/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xdma_channel_i.h"	/* constants shared with buffer descriptor */
-#include "xbasic_types.h"
-#include "xstatus.h"
-#include "xversion.h"
-#include "xbuf_descriptor.h"
-
-/************************** Constant Definitions *****************************/
-
-/* the following constants provide access to the bit fields of the DMA control
- * register (DMACR)
- */
-#define XDC_DMACR_SOURCE_INCR_MASK	0x80000000UL	/* increment source address */
-#define XDC_DMACR_DEST_INCR_MASK	0x40000000UL	/* increment dest address */
-#define XDC_DMACR_SOURCE_LOCAL_MASK 0x20000000UL	/* local source address */
-#define XDC_DMACR_DEST_LOCAL_MASK	0x10000000UL	/* local dest address */
-#define XDC_DMACR_SG_DISABLE_MASK	0x08000000UL	/* scatter gather disable */
-#define XDC_DMACR_GEN_BD_INTR_MASK	0x04000000UL	/* descriptor interrupt */
-#define XDC_DMACR_LAST_BD_MASK		XDC_CONTROL_LAST_BD_MASK	/* last buffer */
-															 /*     descriptor  */
-
-/* the following constants provide access to the bit fields of the DMA status
- * register (DMASR)
- */
-#define XDC_DMASR_BUSY_MASK			0x80000000UL	/* channel is busy */
-#define XDC_DMASR_BUS_ERROR_MASK	0x40000000UL	/* bus error occurred */
-#define XDC_DMASR_BUS_TIMEOUT_MASK	0x20000000UL	/* bus timeout occurred */
-#define XDC_DMASR_LAST_BD_MASK		XDC_STATUS_LAST_BD_MASK	/* last buffer */
-														    /* descriptor  */
-#define XDC_DMASR_SG_BUSY_MASK		0x08000000UL	/* scatter gather is busy */
-
-/* the following constants provide access to the bit fields of the interrupt
- * status register (ISR) and the interrupt enable register (IER), bit masks
- * match for both registers such that they are named IXR
- */
-#define XDC_IXR_DMA_DONE_MASK		0x1UL	/* dma operation done */
-#define XDC_IXR_DMA_ERROR_MASK	    0x2UL	/* dma operation error */
-#define XDC_IXR_PKT_DONE_MASK	    0x4UL	/* packet done */
-#define XDC_IXR_PKT_THRESHOLD_MASK	0x8UL	/* packet count threshold */
-#define XDC_IXR_PKT_WAIT_BOUND_MASK 0x10UL	/* packet wait bound reached */
-#define XDC_IXR_SG_DISABLE_ACK_MASK 0x20UL	/* scatter gather disable
-						   acknowledge occurred */
-#define XDC_IXR_SG_END_MASK			0x40UL	/* last buffer descriptor
-							   disabled scatter gather */
-#define XDC_IXR_BD_MASK				0x80UL	/* buffer descriptor done */
-
-/**************************** Type Definitions *******************************/
-
-/*
- * the following structure contains data which is on a per instance basis
- * for the XDmaChannel component
- */
-typedef struct XDmaChannelTag {
-	XVersion Version;	/* version of the driver */
-	u32 RegBaseAddress;	/* base address of registers */
-	u32 IsReady;		/* device is initialized and ready */
-
-	XBufDescriptor *PutPtr;	/* keep track of where to put into list */
-	XBufDescriptor *GetPtr;	/* keep track of where to get from list */
-	XBufDescriptor *CommitPtr;	/* keep track of where to commit in list */
-	XBufDescriptor *LastPtr;	/* keep track of the last put in the list */
-	u32 TotalDescriptorCount;	/* total # of descriptors in the list */
-	u32 ActiveDescriptorCount;	/* # of descriptors pointing to buffers
-					   * in the buffer descriptor list */
-} XDmaChannel;
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-XStatus XDmaChannel_Initialize(XDmaChannel * InstancePtr, u32 BaseAddress);
-u32 XDmaChannel_IsReady(XDmaChannel * InstancePtr);
-XVersion *XDmaChannel_GetVersion(XDmaChannel * InstancePtr);
-XStatus XDmaChannel_SelfTest(XDmaChannel * InstancePtr);
-void XDmaChannel_Reset(XDmaChannel * InstancePtr);
-
-/* Control functions */
-
-u32 XDmaChannel_GetControl(XDmaChannel * InstancePtr);
-void XDmaChannel_SetControl(XDmaChannel * InstancePtr, u32 Control);
-
-/* Status functions */
-
-u32 XDmaChannel_GetStatus(XDmaChannel * InstancePtr);
-void XDmaChannel_SetIntrStatus(XDmaChannel * InstancePtr, u32 Status);
-u32 XDmaChannel_GetIntrStatus(XDmaChannel * InstancePtr);
-void XDmaChannel_SetIntrEnable(XDmaChannel * InstancePtr, u32 Enable);
-u32 XDmaChannel_GetIntrEnable(XDmaChannel * InstancePtr);
-
-/* DMA without scatter gather functions */
-
-void XDmaChannel_Transfer(XDmaChannel * InstancePtr,
-			  u32 * SourcePtr, u32 * DestinationPtr, u32 ByteCount);
-
-/* Scatter gather functions */
-
-XStatus XDmaChannel_SgStart(XDmaChannel * InstancePtr);
-XStatus XDmaChannel_SgStop(XDmaChannel * InstancePtr,
-			   XBufDescriptor ** BufDescriptorPtr);
-XStatus XDmaChannel_CreateSgList(XDmaChannel * InstancePtr,
-				 u32 * MemoryPtr, u32 ByteCount);
-u32 XDmaChannel_IsSgListEmpty(XDmaChannel * InstancePtr);
-
-XStatus XDmaChannel_PutDescriptor(XDmaChannel * InstancePtr,
-				  XBufDescriptor * BufDescriptorPtr);
-XStatus XDmaChannel_CommitPuts(XDmaChannel * InstancePtr);
-XStatus XDmaChannel_GetDescriptor(XDmaChannel * InstancePtr,
-				  XBufDescriptor ** BufDescriptorPtr);
-
-/* Packet functions for interrupt collescing */
-
-u32 XDmaChannel_GetPktCount(XDmaChannel * InstancePtr);
-void XDmaChannel_DecrementPktCount(XDmaChannel * InstancePtr);
-XStatus XDmaChannel_SetPktThreshold(XDmaChannel * InstancePtr, u8 Threshold);
-u8 XDmaChannel_GetPktThreshold(XDmaChannel * InstancePtr);
-void XDmaChannel_SetPktWaitBound(XDmaChannel * InstancePtr, u32 WaitBound);
-u32 XDmaChannel_GetPktWaitBound(XDmaChannel * InstancePtr);
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xdma_channel_i.h b/board/xilinx/common/xdma_channel_i.h
deleted file mode 100644
index e9f343bbb..000000000
--- a/board/xilinx/common/xdma_channel_i.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-* FILENAME:
-*
-* xdma_channel_i.h
-*
-* DESCRIPTION:
-*
-* This file contains data which is shared internal data for the DMA channel
-* component. It is also shared with the buffer descriptor component which is
-* very tightly coupled with the DMA channel component.
-*
-* NOTES:
-*
-* The last buffer descriptor constants must be located here to prevent a
-* circular dependency between the DMA channel component and the buffer
-* descriptor component.
-*
-******************************************************************************/
-
-#ifndef XDMA_CHANNEL_I_H	/* prevent circular inclusions */
-#define XDMA_CHANNEL_I_H	/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xstatus.h"
-#include "xversion.h"
-
-/************************** Constant Definitions *****************************/
-
-#define XDC_DMA_CHANNEL_V1_00_A		"1.00a"
-
-/* the following constant provides access to the bit fields of the DMA control
- * register (DMACR) which must be shared between the DMA channel component
- * and the buffer descriptor component
- */
-#define XDC_CONTROL_LAST_BD_MASK	0x02000000UL	/* last buffer descriptor */
-
-/* the following constant provides access to the bit fields of the DMA status
- * register (DMASR) which must be shared between the DMA channel component
- * and the buffer descriptor component
- */
-#define XDC_STATUS_LAST_BD_MASK		0x10000000UL	/* last buffer descriptor */
-
-/* the following constants provide access to each of the registers of a DMA
- * channel
- */
-#define XDC_RST_REG_OFFSET	0	/* reset register */
-#define XDC_MI_REG_OFFSET	0	/* module information register */
-#define XDC_DMAC_REG_OFFSET	4	/* DMA control register */
-#define XDC_SA_REG_OFFSET	8	/* source address register */
-#define XDC_DA_REG_OFFSET	12	/* destination address register */
-#define XDC_LEN_REG_OFFSET	16	/* length register */
-#define XDC_DMAS_REG_OFFSET	20	/* DMA status register */
-#define XDC_BDA_REG_OFFSET	24	/* buffer descriptor address register */
-#define XDC_SWCR_REG_OFFSET 28	/* software control register */
-#define XDC_UPC_REG_OFFSET	32	/* unserviced packet count register */
-#define	XDC_PCT_REG_OFFSET	36	/* packet count threshold register */
-#define XDC_PWB_REG_OFFSET	40	/* packet wait bound register */
-#define XDC_IS_REG_OFFSET	44	/* interrupt status register */
-#define XDC_IE_REG_OFFSET	48	/* interrupt enable register */
-
-/* the following constant is written to the reset register to reset the
- * DMA channel
- */
-#define XDC_RESET_MASK				0x0000000AUL
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xdma_channel_sg.c b/board/xilinx/common/xdma_channel_sg.c
deleted file mode 100644
index a8e94625b..000000000
--- a/board/xilinx/common/xdma_channel_sg.c
+++ /dev/null
@@ -1,1317 +0,0 @@
-/* $Id: xdma_channel_sg.c,v 1.6 2003/02/03 19:50:33 moleres Exp $ */
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-* FILENAME:
-*
-* xdma_channel_sg.c
-*
-* DESCRIPTION:
-*
-* This file contains the implementation of the XDmaChannel component which is
-* related to scatter gather operations.
-*
-* Scatter Gather Operations
-*
-* The DMA channel may support scatter gather operations. A scatter gather
-* operation automates the DMA channel such that multiple buffers can be
-* sent or received with minimal software interaction with the hardware.	 Buffer
-* descriptors, contained in the XBufDescriptor component, are used by the
-* scatter gather operations of the DMA channel to describe the buffers to be
-* processed.
-*
-* Scatter Gather List Operations
-*
-* A scatter gather list may be supported by each DMA channel.  The scatter
-* gather list allows buffer descriptors to be put into the list by a device
-* driver which requires scatter gather.	 The hardware processes the buffer
-* descriptors which are contained in the list and modifies the buffer
-* descriptors to reflect the status of the DMA operations.  The device driver
-* is notified by interrupt that specific DMA events occur including scatter
-* gather events.  The device driver removes the completed buffer descriptors
-* from the scatter gather list to evaluate the status of each DMA operation.
-*
-* The scatter gather list is created and buffer descriptors are inserted into
-* the list.  Buffer descriptors are never removed from the list after it's
-* creation such that a put operation copies from a temporary buffer descriptor
-* to a buffer descriptor in the list.  Get operations don't copy from the list
-* to a temporary, but return a pointer to the buffer descriptor in the list.
-* A buffer descriptor in the list may be locked to prevent it from being
-* overwritten by a put operation.  This allows the device driver to get a
-* descriptor from a scatter gather list and prevent it from being overwritten
-* until the buffer associated with the buffer descriptor has been processed.
-*
-* The get and put functions only operate on the list and are asynchronous from
-* the hardware which may be using the list of descriptors.  This is important
-* because there are no checks in the get and put functions to ensure that the
-* hardware has processed the descriptors.  This must be handled by the driver
-* using the DMA scatter gather channel through the use of the other functions.
-* When a scatter gather operation is started, the start function does ensure
-* that the descriptor to start has not already been processed by the hardware
-* and is not the first of a series of descriptors that have not been committed
-* yet.
-*
-* Descriptors are put into the list but not marked as ready to use by the
-* hardware until a commit operation is done.  This allows multiple descriptors
-* which may contain a single packet of information for a protocol to be
-* guaranteed not to cause any underflow conditions during transmission. The
-* hardware design only allows descriptors to cause it to stop after a descriptor
-* has been processed rather than before it is processed.  A series of
-* descriptors are put into the list followed by a commit operation, or each
-* descriptor may be commited.  A commit operation is performed by changing a
-* single descriptor, the first of the series of puts, to indicate that the
-* hardware may now use all descriptors after it.  The last descriptor in the
-* list is always set to cause the hardware to stop after it is processed.
-*
-* Typical Scatter Gather Processing
-*
-* The following steps illustrate the typical processing to use the
-* scatter gather features of a DMA channel.
-*
-* 1. Create a scatter gather list for the DMA channel which puts empty buffer
-*    descriptors into the list.
-* 2. Create buffer descriptors which describe the buffers to be filled with
-*    receive data or the buffers which contain data to be sent.
-* 3. Put buffer descriptors into the DMA channel scatter list such that scatter
-*    gather operations are requested.
-* 4. Commit the buffer descriptors in the list such that they are ready to be
-*    used by the DMA channel hardware.
-* 5. Start the scatter gather operations of the DMA channel.
-* 6. Process any interrupts which occur as a result of the scatter gather
-*    operations or poll the DMA channel to determine the status.  This may
-*    be accomplished by getting the packet count for the channel and then
-*    getting the appropriate number of descriptors from the list for that
-*    number of packets.
-*
-* Minimizing Interrupts
-*
-* The Scatter Gather operating mode is designed to reduce the amount of CPU
-* throughput necessary to manage the hardware for devices. A key to the CPU
-* throughput is the number and rate of interrupts that the CPU must service.
-* Devices with higher data rates can cause larger numbers of interrupts and
-* higher frequency interrupts. Ideally the number of interrupts can be reduced
-* by only generating an interrupt when a specific amount of data has been
-* received from the interface. This design suffers from a lack of interrupts
-* when the amount of data received is less than the specified amount of data
-* to generate an interrupt. In order to help minimize the number of interrupts
-* which the CPU must service, an algorithm referred to as "interrupt coalescing"
-* is utilized.
-*
-* Interrupt Coalescing
-*
-* The principle of interrupt coalescing is to wait before generating an
-* interrupt until a certain number of packets have been received or sent. An
-* interrupt is also generated if a smaller number of packets have been received
-* followed by a certain period of time with no packet reception. This is a
-* trade-off of latency for bandwidth and is accomplished using several
-* mechanisms of the hardware including a counter for packets received or
-* transmitted and a packet timer. These two hardware mechanisms work in
-* combination to allow a reduction in the number of interrupts processed by the
-* CPU for packet reception.
-*
-* Unserviced Packet Count
-*
-* The purpose of the packet counter is to count the number of packets received
-* or transmitted and provide an interrupt when a specific number of packets
-* have been processed by the hardware. An interrupt is generated whenever the
-* counter is greater than or equal to the Packet Count Threshold. This counter
-* contains an accurate count of the number of packets that the hardware has
-* processed, either received or transmitted, and the software has not serviced.
-*
-* The packet counter allows the number of interrupts to be reduced by waiting
-* to generate an interrupt until enough packets are received. For packet
-* reception, packet counts of less than the number to generate an interrupt
-* would not be serviced without the addition of a packet timer. This counter is
-* continuously updated by the hardware, not latched to the value at the time
-* the interrupt occurred.
-*
-* The packet counter can be used within the interrupt service routine for the
-* device to reduce the number of interrupts. The interrupt service routine
-* loops while performing processing for each packet which has been received or
-* transmitted and decrements the counter by a specified value. At the same time,
-* the hardware is possibly continuing to receive or transmit more packets such
-* that the software may choose, based upon the value in the packet counter, to
-* remain in the interrupt service routine rather than exiting and immediately
-* returning. This feature should be used with caution as reducing the number of
-* interrupts is beneficial, but unbounded interrupt processing is not desirable.
-*
-* Since the hardware may be incrementing the packet counter simultaneously
-* with the software decrementing the counter, there is a need for atomic
-* operations. The hardware ensures that the operation is atomic such that
-* simultaneous accesses are properly handled.
-*
-* Packet Wait Bound
-*
-* The purpose of the packet wait bound is to augment the unserviced packet
-* count. Whenever there is no pending interrupt for the channel and the
-* unserviced packet count is non-zero, a timer starts counting timeout at the
-* value contained the the packet wait bound register.  If the timeout is
-* reached, an interrupt is generated such that the software may service the
-* data which was buffered.
-*
-* NOTES:
-*
-* Special Test Conditions:
-*
-* The scatter gather list processing must be thoroughly tested if changes are
-* made.	 Testing should include putting and committing single descriptors and
-* putting multiple descriptors followed by a single commit.  There are some
-* conditions in the code which handle the exception conditions.
-*
-* The Put Pointer points to the next location in the descriptor list to copy
-* in a new descriptor. The Get Pointer points to the next location in the
-* list to get a descriptor from.  The Get Pointer only allows software to
-* have a traverse the list after the hardware has finished processing some
-* number of descriptors.  The Commit Pointer points to the descriptor in the
-* list which is to be committed.  It is also used to determine that no
-* descriptor is waiting to be commited (NULL).	The Last Pointer points to
-* the last descriptor that was put into the list.  It typically points
-* to the previous descriptor to the one pointed to by the Put Pointer.
-* Comparisons are done between these pointers to determine when the following
-* special conditions exist.
-
-* Single Put And Commit
-*
-* The buffer descriptor is ready to be used by the hardware so it is important
-* for the descriptor to not appear to be waiting to be committed.  The commit
-* pointer is reset when a commit is done indicating there are no descriptors
-* waiting to be committed.  In all cases but this one, the descriptor is
-* changed to cause the hardware to go to the next descriptor after processing
-* this one.  But in this case, this is the last descriptor in the list such
-* that it must not be changed.
-*
-* 3 Or More Puts And Commit
-*
-* A series of 3 or more puts followed by a single commit is different in that
-* only the 1st descriptor put into the list is changed when the commit is done.
-* This requires each put starting on the 3rd to change the previous descriptor
-* so that it allows the hardware to continue to the next descriptor in the list.
-*
-* The 1st Put Following A Commit
-*
-* The commit caused the commit pointer to be NULL indicating that there are no
-* descriptors waiting to be committed.	It is necessary for the next put to set
-* the commit pointer so that a commit must follow the put for the hardware to
-* use the descriptor.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver	Who  Date     Changes
-* ----- ---- -------- ------------------------------------------------------
-* 1.00a rpm  02/03/03 Removed the XST_DMA_SG_COUNT_EXCEEDED return code
-*		      from SetPktThreshold.
-* </pre>
-*
-******************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xdma_channel.h"
-#include "xbasic_types.h"
-#include "xio.h"
-#include "xbuf_descriptor.h"
-#include "xstatus.h"
-
-/************************** Constant Definitions *****************************/
-
-#define XDC_SWCR_SG_ENABLE_MASK 0x80000000UL	/* scatter gather enable */
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/* the following macro copies selected fields of a buffer descriptor to another
- * buffer descriptor, this was provided by the buffer descriptor component but
- * was moved here since it is only used internally to this component and since
- * it does not copy all fields
- */
-#define CopyBufferDescriptor(InstancePtr, DestinationPtr)	   \
-{								   \
-    *((u32 *)DestinationPtr + XBD_CONTROL_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_CONTROL_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_SOURCE_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_SOURCE_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_DESTINATION_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_DESTINATION_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_LENGTH_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_LENGTH_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_STATUS_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_STATUS_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_DEVICE_STATUS_OFFSET) =      \
-	*((u32 *)InstancePtr + XBD_DEVICE_STATUS_OFFSET);      \
-    *((u32 *)DestinationPtr + XBD_ID_OFFSET) =		       \
-	*((u32 *)InstancePtr + XBD_ID_OFFSET);		       \
-    *((u32 *)DestinationPtr + XBD_FLAGS_OFFSET) =	       \
-	*((u32 *)InstancePtr + XBD_FLAGS_OFFSET);	       \
-    *((u32 *)DestinationPtr + XBD_RQSTED_LENGTH_OFFSET) =      \
-	*((u32 *)InstancePtr + XBD_RQSTED_LENGTH_OFFSET);      \
-}
-
-/************************** Variable Definitions *****************************/
-
-/************************** Function Prototypes ******************************/
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SgStart
-*
-* DESCRIPTION:
-*
-* This function starts a scatter gather operation for a scatter gather
-* DMA channel.	The first buffer descriptor in the buffer descriptor list
-* will be started with the scatter gather operation.  A scatter gather list
-* should have previously been created for the DMA channel and buffer
-* descriptors put into the scatter gather list such that there are scatter
-* operations ready to be performed.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* A status containing XST_SUCCESS if scatter gather was started successfully
-* for the DMA channel.
-*
-* A value of XST_DMA_SG_NO_LIST indicates the scatter gather list has not
-* been created.
-*
-* A value of XST_DMA_SG_LIST_EMPTY indicates scatter gather was not started
-* because the scatter gather list of the DMA channel does not contain any
-* buffer descriptors that are ready to be processed by the hardware.
-*
-* A value of XST_DMA_SG_IS_STARTED indicates scatter gather was not started
-* because the scatter gather was not stopped, but was already started.
-*
-* A value of XST_DMA_SG_BD_NOT_COMMITTED indicates the buffer descriptor of
-* scatter gather list which was to be started is not committed to the list.
-* This status is more likely if this function is being called from an ISR
-* and non-ISR processing is putting descriptors into the list.
-*
-* A value of XST_DMA_SG_NO_DATA indicates that the buffer descriptor of the
-* scatter gather list which was to be started had already been used by the
-* hardware for a DMA transfer that has been completed.
-*
-* NOTES:
-*
-* It is the responsibility of the caller to get all the buffer descriptors
-* after performing a stop operation and before performing a start operation.
-* If buffer descriptors are not retrieved between stop and start operations,
-* buffer descriptors may be processed by the hardware more than once.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_SgStart(XDmaChannel * InstancePtr)
-{
-	u32 Register;
-	XBufDescriptor *LastDescriptorPtr;
-
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if a scatter gather list has not been created yet, return a status */
-
-	if (InstancePtr->TotalDescriptorCount == 0) {
-		return XST_DMA_SG_NO_LIST;
-	}
-
-	/* if the scatter gather list exists but is empty then return a status */
-
-	if (XDmaChannel_IsSgListEmpty(InstancePtr)) {
-		return XST_DMA_SG_LIST_EMPTY;
-	}
-
-	/* if scatter gather is busy for the DMA channel, return a status because
-	 * restarting it could lose data
-	 */
-
-	Register = XIo_In32(InstancePtr->RegBaseAddress + XDC_DMAS_REG_OFFSET);
-	if (Register & XDC_DMASR_SG_BUSY_MASK) {
-		return XST_DMA_SG_IS_STARTED;
-	}
-
-	/* get the address of the last buffer descriptor which the DMA hardware
-	 * finished processing
-	 */
-	LastDescriptorPtr =
-	    (XBufDescriptor *) XIo_In32(InstancePtr->RegBaseAddress +
-					XDC_BDA_REG_OFFSET);
-
-	/* setup the first buffer descriptor that will be sent when the scatter
-	 * gather channel is enabled, this is only necessary one time since
-	 * the BDA register of the channel maintains the last buffer descriptor
-	 * processed
-	 */
-	if (LastDescriptorPtr == NULL) {
-		XIo_Out32(InstancePtr->RegBaseAddress + XDC_BDA_REG_OFFSET,
-			  (u32) InstancePtr->GetPtr);
-	} else {
-		XBufDescriptor *NextDescriptorPtr;
-
-		/* get the next descriptor to be started, if the status indicates it
-		 * hasn't already been used by the h/w, then it's OK to start it,
-		 * s/w sets the status of each descriptor to busy and then h/w clears
-		 * the busy when it is complete
-		 */
-		NextDescriptorPtr =
-		    XBufDescriptor_GetNextPtr(LastDescriptorPtr);
-
-		if ((XBufDescriptor_GetStatus(NextDescriptorPtr) &
-		     XDC_DMASR_BUSY_MASK) == 0) {
-			return XST_DMA_SG_NO_DATA;
-		}
-		/* don't start the DMA SG channel if the descriptor to be processed
-		 * by h/w is to be committed by the s/w, this function can be called
-		 * such that it interrupts a thread that was putting into the list
-		 */
-		if (NextDescriptorPtr == InstancePtr->CommitPtr) {
-			return XST_DMA_SG_BD_NOT_COMMITTED;
-		}
-	}
-
-	/* start the scatter gather operation by clearing the stop bit in the
-	 * control register and setting the enable bit in the s/w control register,
-	 * both of these are necessary to cause it to start, right now the order of
-	 * these statements is important, the software control register should be
-	 * set 1st.  The other order can cause the CPU to have a loss of sync
-	 * because it cannot read/write the register while the DMA operation is
-	 * running
-	 */
-
-	Register = XIo_In32(InstancePtr->RegBaseAddress + XDC_SWCR_REG_OFFSET);
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_SWCR_REG_OFFSET,
-		  Register | XDC_SWCR_SG_ENABLE_MASK);
-
-	Register = XIo_In32(InstancePtr->RegBaseAddress + XDC_DMAC_REG_OFFSET);
-
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_DMAC_REG_OFFSET,
-		  Register & ~XDC_DMACR_SG_DISABLE_MASK);
-
-	/* indicate the DMA channel scatter gather operation was started
-	 * successfully
-	 */
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SgStop
-*
-* DESCRIPTION:
-*
-* This function stops a scatter gather operation for a scatter gather
-* DMA channel. This function starts the process of stopping a scatter
-* gather operation that is in progress and waits for the stop to be completed.
-* Since it waits for the operation to stopped before returning, this function
-* could take an amount of time relative to the size of the DMA scatter gather
-* operation which is in progress.  The scatter gather list of the DMA channel
-* is not modified by this function such that starting the scatter gather
-* channel after stopping it will cause it to resume.  This operation is
-* considered to be a graceful stop in that the scatter gather operation
-* completes the current buffer descriptor before stopping.
-*
-* If the interrupt is enabled, an interrupt will be generated when the
-* operation is stopped and the caller is responsible for handling the
-* interrupt.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* BufDescriptorPtr is also a return value which contains a pointer to the
-* buffer descriptor which the scatter gather operation completed when it
-* was stopped.
-*
-* RETURN VALUE:
-*
-* A status containing XST_SUCCESS if scatter gather was stopped successfully
-* for the DMA channel.
-*
-* A value of XST_DMA_SG_IS_STOPPED indicates scatter gather was not stoppped
-* because the scatter gather is not started, but was already stopped.
-*
-* BufDescriptorPtr contains a pointer to the buffer descriptor which was
-* completed when the operation was stopped.
-*
-* NOTES:
-*
-* This function implements a loop which polls the hardware for an infinite
-* amount of time. If the hardware is not operating correctly, this function
-* may never return.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_SgStop(XDmaChannel * InstancePtr,
-		   XBufDescriptor ** BufDescriptorPtr)
-{
-	u32 Register;
-
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(BufDescriptorPtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the contents of the software control register, if scatter gather is not
-	 * enabled (started), then return a status because the disable acknowledge
-	 * would not be generated
-	 */
-	Register = XIo_In32(InstancePtr->RegBaseAddress + XDC_SWCR_REG_OFFSET);
-
-	if ((Register & XDC_SWCR_SG_ENABLE_MASK) == 0) {
-		return XST_DMA_SG_IS_STOPPED;
-	}
-
-	/* Ensure the interrupt status for the scatter gather is cleared such
-	 * that this function will wait til the disable has occurred, writing
-	 * a 1 to only that bit in the register will clear only it
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_IS_REG_OFFSET,
-		  XDC_IXR_SG_DISABLE_ACK_MASK);
-
-	/* disable scatter gather by writing to the software control register
-	 * without modifying any other bits of the register
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_SWCR_REG_OFFSET,
-		  Register & ~XDC_SWCR_SG_ENABLE_MASK);
-
-	/* scatter gather does not disable immediately, but after the current
-	 * buffer descriptor is complete, so wait for the DMA channel to indicate
-	 * the disable is complete
-	 */
-	do {
-		Register =
-		    XIo_In32(InstancePtr->RegBaseAddress + XDC_IS_REG_OFFSET);
-	} while ((Register & XDC_IXR_SG_DISABLE_ACK_MASK) == 0);
-
-	/* Ensure the interrupt status for the scatter gather disable is cleared,
-	 * writing a 1 to only that bit in the register will clear only it
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_IS_REG_OFFSET,
-		  XDC_IXR_SG_DISABLE_ACK_MASK);
-
-	/* set the specified buffer descriptor pointer to point to the buffer
-	 * descriptor that the scatter gather DMA channel was processing
-	 */
-	*BufDescriptorPtr =
-	    (XBufDescriptor *) XIo_In32(InstancePtr->RegBaseAddress +
-					XDC_BDA_REG_OFFSET);
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_CreateSgList
-*
-* DESCRIPTION:
-*
-* This function creates a scatter gather list in the DMA channel.  A scatter
-* gather list consists of a list of buffer descriptors that are available to
-* be used for scatter gather operations.  Buffer descriptors are put into the
-* list to request a scatter gather operation to be performed.
-*
-* A number of buffer descriptors are created from the specified memory and put
-* into a buffer descriptor list as empty buffer descriptors. This function must
-* be called before non-empty buffer descriptors may be put into the DMA channel
-* to request scatter gather operations.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* MemoryPtr contains a pointer to the memory which is to be used for buffer
-* descriptors and must not be cached.
-*
-* ByteCount contains the number of bytes for the specified memory to be used
-* for buffer descriptors.
-*
-* RETURN VALUE:
-*
-* A status contains XST_SUCCESS if the scatter gather list was successfully
-* created.
-*
-* A value of XST_DMA_SG_LIST_EXISTS indicates that the scatter gather list
-* was not created because the list has already been created.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_CreateSgList(XDmaChannel * InstancePtr,
-			 u32 * MemoryPtr, u32 ByteCount)
-{
-	XBufDescriptor *BufferDescriptorPtr = (XBufDescriptor *) MemoryPtr;
-	XBufDescriptor *PreviousDescriptorPtr = NULL;
-	XBufDescriptor *StartOfListPtr = BufferDescriptorPtr;
-	u32 UsedByteCount;
-
-	/* assert to verify valid input arguments, alignment for those
-	 * arguments that have alignment restrictions, and at least enough
-	 * memory for one buffer descriptor
-	 */
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(MemoryPtr != NULL);
-	XASSERT_NONVOID(((u32) MemoryPtr & 3) == 0);
-	XASSERT_NONVOID(ByteCount != 0);
-	XASSERT_NONVOID(ByteCount >= sizeof (XBufDescriptor));
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if the scatter gather list has already been created, then return
-	 * with a status
-	 */
-	if (InstancePtr->TotalDescriptorCount != 0) {
-		return XST_DMA_SG_LIST_EXISTS;
-	}
-
-	/* loop thru the specified memory block and create as many buffer
-	 * descriptors as possible putting each into the list which is
-	 * implemented as a ring buffer, make sure not to use any memory which
-	 * is not large enough for a complete buffer descriptor
-	 */
-	UsedByteCount = 0;
-	while ((UsedByteCount + sizeof (XBufDescriptor)) <= ByteCount) {
-		/* setup a pointer to the next buffer descriptor in the memory and
-		 * update # of used bytes to know when all of memory is used
-		 */
-		BufferDescriptorPtr = (XBufDescriptor *) ((u32) MemoryPtr +
-							  UsedByteCount);
-
-		/* initialize the new buffer descriptor such that it doesn't contain
-		 * garbage which could be used by the DMA hardware
-		 */
-		XBufDescriptor_Initialize(BufferDescriptorPtr);
-
-		/* if this is not the first buffer descriptor to be created,
-		 * then link it to the last created buffer descriptor
-		 */
-		if (PreviousDescriptorPtr != NULL) {
-			XBufDescriptor_SetNextPtr(PreviousDescriptorPtr,
-						  BufferDescriptorPtr);
-		}
-
-		/* always keep a pointer to the last created buffer descriptor such
-		 * that they can be linked together in the ring buffer
-		 */
-		PreviousDescriptorPtr = BufferDescriptorPtr;
-
-		/* keep a count of the number of descriptors in the list to allow
-		 * error processing to be performed
-		 */
-		InstancePtr->TotalDescriptorCount++;
-
-		UsedByteCount += sizeof (XBufDescriptor);
-	}
-
-	/* connect the last buffer descriptor created and inserted in the list
-	 * to the first such that a ring buffer is created
-	 */
-	XBufDescriptor_SetNextPtr(BufferDescriptorPtr, StartOfListPtr);
-
-	/* initialize the ring buffer to indicate that there are no
-	 * buffer descriptors in the list which point to valid data buffers
-	 */
-	InstancePtr->PutPtr = BufferDescriptorPtr;
-	InstancePtr->GetPtr = BufferDescriptorPtr;
-	InstancePtr->CommitPtr = NULL;
-	InstancePtr->LastPtr = BufferDescriptorPtr;
-	InstancePtr->ActiveDescriptorCount = 0;
-
-	/* indicate the scatter gather list was successfully created */
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_IsSgListEmpty
-*
-* DESCRIPTION:
-*
-* This function determines if the scatter gather list of a DMA channel is
-* empty with regard to buffer descriptors which are pointing to buffers to be
-* used for scatter gather operations.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* A value of TRUE if the scatter gather list is empty, otherwise a value of
-* FALSE.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_IsSgListEmpty(XDmaChannel * InstancePtr)
-{
-	/* assert to verify valid input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if the number of descriptors which are being used in the list is zero
-	 * then the list is empty
-	 */
-	return (InstancePtr->ActiveDescriptorCount == 0);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_PutDescriptor
-*
-* DESCRIPTION:
-*
-* This function puts a buffer descriptor into the DMA channel scatter
-* gather list. A DMA channel maintains a list of buffer descriptors which are
-* to be processed.  This function puts the specified buffer descriptor
-* at the next location in the list.  Note that since the list is already intact,
-* the information in the parameter is copied into the list (rather than modify
-* list pointers on the fly).
-*
-* After buffer descriptors are put into the list, they must also be committed
-* by calling another function.	This allows multiple buffer descriptors which
-* span a single packet to be put into the list while preventing the hardware
-* from starting the first buffer descriptor of the packet.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* BufferDescriptorPtr is a pointer to the buffer descriptor to be put into
-* the next available location of the scatter gather list.
-*
-* RETURN VALUE:
-*
-* A status which indicates XST_SUCCESS if the buffer descriptor was
-* successfully put into the scatter gather list.
-*
-* A value of XST_DMA_SG_NO_LIST indicates the scatter gather list has not
-* been created.
-*
-* A value of XST_DMA_SG_LIST_FULL indicates the buffer descriptor was not
-* put into the list because the list was full.
-*
-* A value of XST_DMA_SG_BD_LOCKED indicates the buffer descriptor was not
-* put into the list because the buffer descriptor in the list which is to
-* be overwritten was locked.  A locked buffer descriptor indicates the higher
-* layered software is still using the buffer descriptor.
-*
-* NOTES:
-*
-* It is necessary to create a scatter gather list for a DMA channel before
-* putting buffer descriptors into it.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_PutDescriptor(XDmaChannel * InstancePtr,
-			  XBufDescriptor * BufferDescriptorPtr)
-{
-	u32 Control;
-
-	/* assert to verify valid input arguments and alignment for those
-	 * arguments that have alignment restrictions
-	 */
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(BufferDescriptorPtr != NULL);
-	XASSERT_NONVOID(((u32) BufferDescriptorPtr & 3) == 0);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if a scatter gather list has not been created yet, return a status */
-
-	if (InstancePtr->TotalDescriptorCount == 0) {
-		return XST_DMA_SG_NO_LIST;
-	}
-
-	/* if the list is full because all descriptors are pointing to valid
-	 * buffers, then indicate an error, this code assumes no list or an
-	 * empty list is detected above
-	 */
-	if (InstancePtr->ActiveDescriptorCount ==
-	    InstancePtr->TotalDescriptorCount) {
-		return XST_DMA_SG_LIST_FULL;
-	}
-
-	/* if the buffer descriptor in the list which is to be overwritten is
-	 * locked, then don't overwrite it and return a status
-	 */
-	if (XBufDescriptor_IsLocked(InstancePtr->PutPtr)) {
-		return XST_DMA_SG_BD_LOCKED;
-	}
-
-	/* set the scatter gather stop bit in the control word of the descriptor
-	 * to cause the h/w to stop after it processes this descriptor since it
-	 * will be the last in the list
-	 */
-	Control = XBufDescriptor_GetControl(BufferDescriptorPtr);
-	XBufDescriptor_SetControl(BufferDescriptorPtr,
-				  Control | XDC_DMACR_SG_DISABLE_MASK);
-
-	/* set both statuses in the descriptor so we tell if they are updated with
-	 * the status of the transfer, the hardware should change the busy in the
-	 * DMA status to be false when it completes
-	 */
-	XBufDescriptor_SetStatus(BufferDescriptorPtr, XDC_DMASR_BUSY_MASK);
-	XBufDescriptor_SetDeviceStatus(BufferDescriptorPtr, 0);
-
-	/* copy the descriptor into the next position in the list so it's ready to
-	 * be used by the h/w, this assumes the descriptor in the list prior to this
-	 * one still has the stop bit in the control word set such that the h/w
-	 * use this one yet
-	 */
-	CopyBufferDescriptor(BufferDescriptorPtr, InstancePtr->PutPtr);
-
-	/* only the last in the list and the one to be committed have scatter gather
-	 * disabled in the control word, a commit requires only one descriptor
-	 * to be changed, when # of descriptors to commit > 2 all others except the
-	 * 1st and last have scatter gather enabled
-	 */
-	if ((InstancePtr->CommitPtr != InstancePtr->LastPtr) &&
-	    (InstancePtr->CommitPtr != NULL)) {
-		Control = XBufDescriptor_GetControl(InstancePtr->LastPtr);
-		XBufDescriptor_SetControl(InstancePtr->LastPtr,
-					  Control & ~XDC_DMACR_SG_DISABLE_MASK);
-	}
-
-	/* update the list data based upon putting a descriptor into the list,
-	 * these operations must be last
-	 */
-	InstancePtr->ActiveDescriptorCount++;
-
-	/* only update the commit pointer if it is not already active, this allows
-	 * it to be deactivated after every commit such that a single descriptor
-	 * which is committed does not appear to be waiting to be committed
-	 */
-	if (InstancePtr->CommitPtr == NULL) {
-		InstancePtr->CommitPtr = InstancePtr->LastPtr;
-	}
-
-	/* these updates MUST BE LAST after the commit pointer update in order for
-	 * the commit pointer to track the correct descriptor to be committed
-	 */
-	InstancePtr->LastPtr = InstancePtr->PutPtr;
-	InstancePtr->PutPtr = XBufDescriptor_GetNextPtr(InstancePtr->PutPtr);
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_CommitPuts
-*
-* DESCRIPTION:
-*
-* This function commits the buffer descriptors which have been put into the
-* scatter list for the DMA channel since the last commit operation was
-* performed.  This enables the calling functions to put several buffer
-* descriptors into the list (e.g.,a packet's worth) before allowing the scatter
-* gather operations to start.  This prevents the DMA channel hardware from
-* starting to use the buffer descriptors in the list before they are ready
-* to be used (multiple buffer descriptors for a single packet).
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* A status indicating XST_SUCCESS if the buffer descriptors of the list were
-* successfully committed.
-*
-* A value of XST_DMA_SG_NOTHING_TO_COMMIT indicates that the buffer descriptors
-* were not committed because there was nothing to commit in the list.  All the
-* buffer descriptors which are in the list are commited.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_CommitPuts(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if the buffer descriptor to be committed is already committed or
-	 * the list is empty (none have been put in), then indicate an error
-	 */
-	if ((InstancePtr->CommitPtr == NULL) ||
-	    XDmaChannel_IsSgListEmpty(InstancePtr)) {
-		return XST_DMA_SG_NOTHING_TO_COMMIT;
-	}
-
-	/* last descriptor in the list must have scatter gather disabled so the end
-	 * of the list is hit by h/w, if descriptor to commit is not last in list,
-	 * commit descriptors by enabling scatter gather in the descriptor
-	 */
-	if (InstancePtr->CommitPtr != InstancePtr->LastPtr) {
-		u32 Control;
-
-		Control = XBufDescriptor_GetControl(InstancePtr->CommitPtr);
-		XBufDescriptor_SetControl(InstancePtr->CommitPtr, Control &
-					  ~XDC_DMACR_SG_DISABLE_MASK);
-	}
-	/* Update the commit pointer to indicate that there is nothing to be
-	 * committed, this state is used by start processing to know that the
-	 * buffer descriptor to start is not waiting to be committed
-	 */
-	InstancePtr->CommitPtr = NULL;
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetDescriptor
-*
-* DESCRIPTION:
-*
-* This function gets a buffer descriptor from the scatter gather list of the
-* DMA channel. The buffer descriptor is retrieved from the scatter gather list
-* and the scatter gather list is updated to not include the retrieved buffer
-* descriptor.  This is typically done after a scatter gather operation
-* completes indicating that a data buffer has been successfully sent or data
-* has been received into the data buffer. The purpose of this function is to
-* allow the device using the scatter gather operation to get the results of the
-* operation.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* BufDescriptorPtr is a pointer to a pointer to the buffer descriptor which
-* was retrieved from the list.	The buffer descriptor is not really removed
-* from the list, but it is changed to a state such that the hardware will not
-* use it again until it is put into the scatter gather list of the DMA channel.
-*
-* RETURN VALUE:
-*
-* A status indicating XST_SUCCESS if a buffer descriptor was retrieved from
-* the scatter gather list of the DMA channel.
-*
-* A value of XST_DMA_SG_NO_LIST indicates the scatter gather list has not
-* been created.
-*
-* A value of XST_DMA_SG_LIST_EMPTY indicates no buffer descriptor was
-* retrieved from the list because there are no buffer descriptors to be
-* processed in the list.
-*
-* BufDescriptorPtr is updated to point to the buffer descriptor which was
-* retrieved from the list if the status indicates success.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_GetDescriptor(XDmaChannel * InstancePtr,
-			  XBufDescriptor ** BufDescriptorPtr)
-{
-	u32 Control;
-
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(BufDescriptorPtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if a scatter gather list has not been created yet, return a status */
-
-	if (InstancePtr->TotalDescriptorCount == 0) {
-		return XST_DMA_SG_NO_LIST;
-	}
-
-	/* if the buffer descriptor list is empty, then indicate an error */
-
-	if (XDmaChannel_IsSgListEmpty(InstancePtr)) {
-		return XST_DMA_SG_LIST_EMPTY;
-	}
-
-	/* retrieve the next buffer descriptor which is ready to be processed from
-	 * the buffer descriptor list for the DMA channel, set the control word
-	 * such that hardware will stop after the descriptor has been processed
-	 */
-	Control = XBufDescriptor_GetControl(InstancePtr->GetPtr);
-	XBufDescriptor_SetControl(InstancePtr->GetPtr,
-				  Control | XDC_DMACR_SG_DISABLE_MASK);
-
-	/* set the input argument, which is also an output, to point to the
-	 * buffer descriptor which is to be retrieved from the list
-	 */
-	*BufDescriptorPtr = InstancePtr->GetPtr;
-
-	/* update the pointer of the DMA channel to reflect the buffer descriptor
-	 * was retrieved from the list by setting it to the next buffer descriptor
-	 * in the list and indicate one less descriptor in the list now
-	 */
-	InstancePtr->GetPtr = XBufDescriptor_GetNextPtr(InstancePtr->GetPtr);
-	InstancePtr->ActiveDescriptorCount--;
-
-	return XST_SUCCESS;
-}
-
-/*********************** Interrupt Collescing Functions **********************/
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetPktCount
-*
-* DESCRIPTION:
-*
-* This function returns the value of the unserviced packet count register of
-* the DMA channel.  This count represents the number of packets that have been
-* sent or received by the hardware, but not processed by software.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* The unserviced packet counter register contents for the DMA channel.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetPktCount(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the unserviced packet count from the register and return it */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_UPC_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_DecrementPktCount
-*
-* DESCRIPTION:
-*
-* This function decrements the value of the unserviced packet count register.
-* This informs the hardware that the software has processed a packet.  The
-* unserviced packet count register may only be decremented by one in the
-* hardware.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_DecrementPktCount(XDmaChannel * InstancePtr)
-{
-	u32 Register;
-
-	/* assert to verify input arguments */
-
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* if the unserviced packet count register can be decremented (rather
-	 * than rolling over) decrement it by writing a 1 to the register,
-	 * this is the only valid write to the register as it serves as an
-	 * acknowledge that a packet was handled by the software
-	 */
-	Register = XIo_In32(InstancePtr->RegBaseAddress + XDC_UPC_REG_OFFSET);
-	if (Register > 0) {
-		XIo_Out32(InstancePtr->RegBaseAddress + XDC_UPC_REG_OFFSET,
-			  1UL);
-	}
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SetPktThreshold
-*
-* DESCRIPTION:
-*
-* This function sets the value of the packet count threshold register of the
-* DMA channel.	It reflects the number of packets that must be sent or
-* received before generating an interrupt.  This value helps implement
-* a concept called "interrupt coalescing", which is used to reduce the number
-* of interrupts from devices with high data rates.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* Threshold is the value that is written to the threshold register of the
-* DMA channel.
-*
-* RETURN VALUE:
-*
-* A status containing XST_SUCCESS if the packet count threshold was
-* successfully set.
-*
-* NOTES:
-*
-* The packet threshold could be set to larger than the number of descriptors
-* allocated to the DMA channel. In this case, the wait bound will take over
-* and always indicate data arrival. There was a check in this function that
-* returned an error if the treshold was larger than the number of descriptors,
-* but that was removed because users would then have to set the threshold
-* only after they set descriptor space, which is an order dependency that
-* caused confustion.
-*
-******************************************************************************/
-XStatus
-XDmaChannel_SetPktThreshold(XDmaChannel * InstancePtr, u8 Threshold)
-{
-	/* assert to verify input arguments, don't assert the threshold since
-	 * it's range is unknown
-	 */
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* set the packet count threshold in the register such that an interrupt
-	 * may be generated, if enabled, when the packet count threshold is
-	 * reached or exceeded
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_PCT_REG_OFFSET,
-		  (u32) Threshold);
-
-	/* indicate the packet count threshold was successfully set */
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetPktThreshold
-*
-* DESCRIPTION:
-*
-* This function gets the value of the packet count threshold register of the
-* DMA channel.	This value reflects the number of packets that must be sent or
-* received before generating an interrupt.  This value helps implement a concept
-* called "interrupt coalescing", which is used to reduce the number of
-* interrupts from devices with high data rates.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* The packet threshold register contents for the DMA channel and is a value in
-* the range 0 - 1023.  A value of 0 indicates the packet wait bound timer is
-* disabled.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u8
-XDmaChannel_GetPktThreshold(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the packet count threshold from the register and return it,
-	 * since only 8 bits are used, cast it to return only those bits */
-
-	return (u8) XIo_In32(InstancePtr->RegBaseAddress + XDC_PCT_REG_OFFSET);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_SetPktWaitBound
-*
-* DESCRIPTION:
-*
-* This function sets the value of the packet wait bound register of the
-* DMA channel.	This value reflects the timer value used to trigger an
-* interrupt when not enough packets have been received to reach the packet
-* count threshold.
-*
-* The timer is in millisecond units with +/- 33% accuracy.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* WaitBound is the value, in milliseconds, to be stored in the wait bound
-* register of the DMA channel and is a value in the range 0  - 1023.  A value
-* of 0 disables the packet wait bound timer.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-void
-XDmaChannel_SetPktWaitBound(XDmaChannel * InstancePtr, u32 WaitBound)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(WaitBound < 1024);
-	XASSERT_VOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* set the packet wait bound in the register such that interrupt may be
-	 * generated, if enabled, when packets have not been handled for a specific
-	 * amount of time
-	 */
-	XIo_Out32(InstancePtr->RegBaseAddress + XDC_PWB_REG_OFFSET, WaitBound);
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XDmaChannel_GetPktWaitBound
-*
-* DESCRIPTION:
-*
-* This function gets the value of the packet wait bound register of the
-* DMA channel.	This value contains the timer value used to trigger an
-* interrupt when not enough packets have been received to reach the packet
-* count threshold.
-*
-* The timer is in millisecond units with +/- 33% accuracy.
-*
-* ARGUMENTS:
-*
-* InstancePtr contains a pointer to the DMA channel to operate on.  The DMA
-* channel should be configured to use scatter gather in order for this function
-* to be called.
-*
-* RETURN VALUE:
-*
-* The packet wait bound register contents for the DMA channel.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-u32
-XDmaChannel_GetPktWaitBound(XDmaChannel * InstancePtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the packet wait bound from the register and return it */
-
-	return XIo_In32(InstancePtr->RegBaseAddress + XDC_PWB_REG_OFFSET);
-}
diff --git a/board/xilinx/common/xio.h b/board/xilinx/common/xio.h
deleted file mode 100644
index 5bb09c894..000000000
--- a/board/xilinx/common/xio.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * xio.h
- *
- * Defines XIo functions for Xilinx OCP in terms of Linux primitives
- *
- * Author: MontaVista Software, Inc.
- *         source@mvista.com
- *
- * Copyright 2002 MontaVista Software Inc.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the
- *  Free Software Foundation; either version 2 of the License, or (at your
- *  option) any later version.
- *
- *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef XIO_H
-#define XIO_H
-
-#include "xbasic_types.h"
-#include <asm/io.h>
-
-typedef u32 XIo_Address;
-
-extern inline u8
-XIo_In8(XIo_Address InAddress)
-{
-	return (u8) in_8((volatile unsigned char *) InAddress);
-}
-extern inline u16
-XIo_In16(XIo_Address InAddress)
-{
-	return (u16) in_be16((volatile unsigned short *) InAddress);
-}
-extern inline u32
-XIo_In32(XIo_Address InAddress)
-{
-	return (u32) in_be32((volatile unsigned *) InAddress);
-}
-extern inline void
-XIo_Out8(XIo_Address OutAddress, u8 Value)
-{
-	out_8((volatile unsigned char *) OutAddress, Value);
-}
-extern inline void
-XIo_Out16(XIo_Address OutAddress, u16 Value)
-{
-	out_be16((volatile unsigned short *) OutAddress, Value);
-}
-extern inline void
-XIo_Out32(XIo_Address OutAddress, u32 Value)
-{
-	out_be32((volatile unsigned *) OutAddress, Value);
-}
-
-#define XIo_ToLittleEndian16(s,d) (*(u16*)(d) = cpu_to_le16((u16)(s)))
-#define XIo_ToLittleEndian32(s,d) (*(u32*)(d) = cpu_to_le32((u32)(s)))
-#define XIo_ToBigEndian16(s,d) (*(u16*)(d) = cpu_to_be16((u16)(s)))
-#define XIo_ToBigEndian32(s,d) (*(u32*)(d) = cpu_to_be32((u32)(s)))
-
-#define XIo_FromLittleEndian16(s,d) (*(u16*)(d) = le16_to_cpu((u16)(s)))
-#define XIo_FromLittleEndian32(s,d) (*(u32*)(d) = le32_to_cpu((u32)(s)))
-#define XIo_FromBigEndian16(s,d) (*(u16*)(d) = be16_to_cpu((u16)(s)))
-#define XIo_FromBigEndian32(s,d) (*(u32*)(d) = be32_to_cpu((u32)(s)))
-
-#endif				/* XIO_H */
diff --git a/board/xilinx/common/xipif_v1_23_b.c b/board/xilinx/common/xipif_v1_23_b.c
deleted file mode 100644
index c7311ab9b..000000000
--- a/board/xilinx/common/xipif_v1_23_b.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/* $Id: xipif_v1_23_b.c,v 1.1 2002/03/18 23:24:52 linnj Exp $ */
-/******************************************************************************
-*
-*       XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
-*       AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
-*       SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
-*       OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
-*       APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
-*       THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
-*       AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
-*       FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
-*       WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
-*       IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
-*       REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
-*       INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-*       FOR A PARTICULAR PURPOSE.
-*
-*       (c) Copyright 2002 Xilinx Inc.
-*       All rights reserved.
-*
-******************************************************************************/
-/******************************************************************************
-*
-* FILENAME:
-*
-* xipif.c
-*
-* DESCRIPTION:
-*
-* This file contains the implementation of the XIpIf component. The
-* XIpIf component encapsulates the IPIF, which is the standard interface
-* that IP must adhere to when connecting to a bus.  The purpose of this
-* component is to encapsulate the IPIF processing such that maintainability
-* is increased.  This component does not provide a lot of abstraction from
-* from the details of the IPIF as it is considered a building block for
-* device drivers.  A device driver designer must be familiar with the
-* details of the IPIF hardware to use this component.
-*
-* The IPIF hardware provides a building block for all hardware devices such
-* that each device does not need to reimplement these building blocks. The
-* IPIF contains other building blocks, such as FIFOs and DMA channels, which
-* are also common to many devices.  These blocks are implemented as separate
-* hardware blocks and instantiated within the IPIF.  The primary hardware of
-* the IPIF which is implemented by this software component is the interrupt
-* architecture.  Since there are many blocks of a device which may generate
-* interrupts, all the interrupt processing is contained in the common part
-* of the device, the IPIF.  This interrupt processing is for the device level
-* only and does not include any processing for the interrupt controller.
-*
-* A device is a mechanism such as an Ethernet MAC.  The device is made
-* up of several parts which include an IPIF and the IP.  The IPIF contains most
-* of the device infrastructure which is common to all devices, such as
-* interrupt processing, DMA channels, and FIFOs.  The infrastructure may also
-* be referred to as IPIF internal blocks since they are part of the IPIF and
-* are separate blocks that can be selected based upon the needs of the device.
-* The IP of the device is the logic that is unique to the device and interfaces
-* to the IPIF of the device.
-*
-* In general, there are two levels of registers within the IPIF.  The first
-* level, referred to as the device level, contains registers which are for the
-* entire device.  The second level, referred to as the IP level, contains
-* registers which are specific to the IP of the device.  The two levels of
-* registers are designed to be hierarchical such that the device level is
-* is a more general register set above the more specific registers of the IP.
-* The IP level of registers provides functionality which is typically common
-* across all devices and allows IP designers to focus on the unique aspects
-* of the IP.
-*
-* The interrupt registers of the IPIF are parameterizable such that the only
-* the number of bits necessary for the device are implemented. The functions
-* of this component do not attempt to validate that the passed in arguments are
-* valid based upon the number of implemented bits.  This is necessary to
-* maintain the level of performance required for the common components.  Bits
-* of the registers are assigned starting at the least significant bit of the
-* registers.
-*
-* Critical Sections
-*
-* It is the responsibility of the device driver designer to use critical
-* sections as necessary when calling functions of the IPIF.  This component
-* does not use critical sections and it does access registers using
-* read-modify-write operations.  Calls to IPIF functions from a main thread
-* and from an interrupt context could produce unpredictable behavior such that
-* the caller must provide the appropriate critical sections.
-*
-* Mutual Exclusion
-*
-* The functions of the IPIF are not thread safe such that the caller of all
-* functions is responsible for ensuring mutual exclusion for an IPIF.  Mutual
-* exclusion across multiple IPIF components is not necessary.
-*
-* NOTES:
-*
-* None.
-*
-* MODIFICATION HISTORY:
-*
-* Ver   Who  Date     Changes
-* ----- ---- -------- -----------------------------------------------
-* 1.23b jhl  02/27/01 Repartioned to reduce size
-*
-******************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xipif_v1_23_b.h"
-#include "xio.h"
-
-/************************** Constant Definitions *****************************/
-
-/* the following constant is used to generate bit masks for register testing
- * in the self test functions, it defines the starting bit mask that is to be
- * shifted from the LSB to MSB in creating a register test mask
- */
-#define XIIF_V123B_FIRST_BIT_MASK     1UL
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Variable Definitions *****************************/
-
-/************************** Function Prototypes ******************************/
-
-static XStatus IpIntrSelfTest(u32 RegBaseAddress, u32 IpRegistersWidth);
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* XIpIf_SelfTest
-*
-* DESCRIPTION:
-*
-* This function performs a self test on the specified IPIF component.  Many
-* of the registers in the IPIF are tested to ensure proper operation.  This
-* function is destructive because the IPIF is reset at the start of the test
-* and at the end of the test to ensure predictable results.  The IPIF reset
-* also resets the entire device that uses the IPIF.  This function exits with
-* all interrupts for the device disabled.
-*
-* ARGUMENTS:
-*
-* InstancePtr points to the XIpIf to operate on.
-*
-* DeviceRegistersWidth contains the number of bits in the device interrupt
-* registers. The hardware is parameterizable such that only the number of bits
-* necessary to support a device are implemented.  This value must be between 0
-* and 32 with 0 indicating there are no device interrupt registers used.
-*
-* IpRegistersWidth contains the number of bits in the IP interrupt registers
-* of the device.  The hardware is parameterizable such that only the number of
-* bits necessary to support a device are implemented.  This value must be
-* between 0 and 32 with 0 indicating there are no IP interrupt registers used.
-*
-* RETURN VALUE:
-*
-* A value of XST_SUCCESS indicates the test was successful with no errors.
-* Any one of the following error values may also be returned.
-*
-*   XST_IPIF_RESET_REGISTER_ERROR       The value of a register at reset was
-*                                       not valid
-*   XST_IPIF_IP_STATUS_ERROR            A write to the IP interrupt status
-*                                       register did not read back correctly
-*   XST_IPIF_IP_ACK_ERROR               One or more bits in the IP interrupt
-*                                       status register did not reset when acked
-*   XST_IPIF_IP_ENABLE_ERROR            The IP interrupt enable register
-*                                       did not read back correctly based upon
-*                                       what was written to it
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-
-/* the following constant defines the maximum number of bits which may be
- * used in the registers at the device and IP levels, this is based upon the
- * number of bits available in the registers
- */
-#define XIIF_V123B_MAX_REG_BIT_COUNT 32
-
-XStatus
-XIpIfV123b_SelfTest(u32 RegBaseAddress, u8 IpRegistersWidth)
-{
-	XStatus Status;
-
-	/* assert to verify arguments are valid */
-
-	XASSERT_NONVOID(IpRegistersWidth <= XIIF_V123B_MAX_REG_BIT_COUNT);
-
-	/* reset the IPIF such that it's in a known state before the test
-	 * and interrupts are globally disabled
-	 */
-	XIIF_V123B_RESET(RegBaseAddress);
-
-	/* perform the self test on the IP interrupt registers, if
-	 * it is not successful exit with the status
-	 */
-	Status = IpIntrSelfTest(RegBaseAddress, IpRegistersWidth);
-	if (Status != XST_SUCCESS) {
-		return Status;
-	}
-
-	/* reset the IPIF such that it's in a known state before exiting test */
-
-	XIIF_V123B_RESET(RegBaseAddress);
-
-	/* reaching this point means there were no errors, return success */
-
-	return XST_SUCCESS;
-}
-
-/******************************************************************************
-*
-* FUNCTION:
-*
-* IpIntrSelfTest
-*
-* DESCRIPTION:
-*
-* Perform a self test on the IP interrupt registers of the IPIF. This
-* function modifies registers of the IPIF such that they are not guaranteed
-* to be in the same state when it returns.  Any bits in the IP interrupt
-* status register which are set are assumed to be set by default after a reset
-* and are not tested in the test.
-*
-* ARGUMENTS:
-*
-* InstancePtr points to the XIpIf to operate on.
-*
-* IpRegistersWidth contains the number of bits in the IP interrupt registers
-* of the device.  The hardware is parameterizable such that only the number of
-* bits necessary to support a device are implemented.  This value must be
-* between 0 and 32 with 0 indicating there are no IP interrupt registers used.
-*
-* RETURN VALUE:
-*
-* A status indicating XST_SUCCESS if the test was successful.  Otherwise, one
-* of the following values is returned.
-*
-*   XST_IPIF_RESET_REGISTER_ERROR       The value of a register at reset was
-*                                       not valid
-*   XST_IPIF_IP_STATUS_ERROR            A write to the IP interrupt status
-*                                       register did not read back correctly
-*   XST_IPIF_IP_ACK_ERROR               One or more bits in the IP status
-*                                       register did not reset when acked
-*   XST_IPIF_IP_ENABLE_ERROR            The IP interrupt enable register
-*                                       did not read back correctly based upon
-*                                       what was written to it
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-static XStatus
-IpIntrSelfTest(u32 RegBaseAddress, u32 IpRegistersWidth)
-{
-	/* ensure that the IP interrupt interrupt enable register is  zero
-	 * as it should be at reset, the interrupt status is dependent upon the
-	 * IP such that it's reset value is not known
-	 */
-	if (XIIF_V123B_READ_IIER(RegBaseAddress) != 0) {
-		return XST_IPIF_RESET_REGISTER_ERROR;
-	}
-
-	/* if there are any used IP interrupts, then test all of the interrupt
-	 * bits in all testable registers
-	 */
-	if (IpRegistersWidth > 0) {
-		u32 BitCount;
-		u32 IpInterruptMask = XIIF_V123B_FIRST_BIT_MASK;
-		u32 Mask = XIIF_V123B_FIRST_BIT_MASK;	/* bits assigned MSB to LSB */
-		u32 InterruptStatus;
-
-		/* generate the register masks to be used for IP register tests, the
-		 * number of bits supported by the hardware is parameterizable such
-		 * that only that number of bits are implemented in the registers, the
-		 * bits are allocated starting at the MSB of the registers
-		 */
-		for (BitCount = 1; BitCount < IpRegistersWidth; BitCount++) {
-			Mask = Mask << 1;
-			IpInterruptMask |= Mask;
-		}
-
-		/* get the current IP interrupt status register contents, any bits
-		 * already set must default to 1 at reset in the device and these
-		 * bits can't be tested in the following test, remove these bits from
-		 * the mask that was generated for the test
-		 */
-		InterruptStatus = XIIF_V123B_READ_IISR(RegBaseAddress);
-		IpInterruptMask &= ~InterruptStatus;
-
-		/* set the bits in the device status register and verify them by reading
-		 * the register again, all bits of the register are latched
-		 */
-		XIIF_V123B_WRITE_IISR(RegBaseAddress, IpInterruptMask);
-		InterruptStatus = XIIF_V123B_READ_IISR(RegBaseAddress);
-		if ((InterruptStatus & IpInterruptMask) != IpInterruptMask)
-		{
-			return XST_IPIF_IP_STATUS_ERROR;
-		}
-
-		/* test to ensure that the bits set in the IP interrupt status register
-		 * can be cleared by acknowledging them in the IP interrupt status
-		 * register then read it again and verify it was cleared
-		 */
-		XIIF_V123B_WRITE_IISR(RegBaseAddress, IpInterruptMask);
-		InterruptStatus = XIIF_V123B_READ_IISR(RegBaseAddress);
-		if ((InterruptStatus & IpInterruptMask) != 0) {
-			return XST_IPIF_IP_ACK_ERROR;
-		}
-
-		/* set the IP interrupt enable set register and then read the IP
-		 * interrupt enable register and verify the interrupts were enabled
-		 */
-		XIIF_V123B_WRITE_IIER(RegBaseAddress, IpInterruptMask);
-		if (XIIF_V123B_READ_IIER(RegBaseAddress) != IpInterruptMask) {
-			return XST_IPIF_IP_ENABLE_ERROR;
-		}
-
-		/* clear the IP interrupt enable register and then read the
-		 * IP interrupt enable register and verify the interrupts were disabled
-		 */
-		XIIF_V123B_WRITE_IIER(RegBaseAddress, 0);
-		if (XIIF_V123B_READ_IIER(RegBaseAddress) != 0) {
-			return XST_IPIF_IP_ENABLE_ERROR;
-		}
-	}
-	return XST_SUCCESS;
-}
diff --git a/board/xilinx/common/xipif_v1_23_b.h b/board/xilinx/common/xipif_v1_23_b.h
deleted file mode 100644
index 3ce1fffba..000000000
--- a/board/xilinx/common/xipif_v1_23_b.h
+++ /dev/null
@@ -1,746 +0,0 @@
-/* $Id: xipif_v1_23_b.h,v 1.1 2002/03/18 23:24:52 linnj Exp $ */
-/******************************************************************************
-*
-*	XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
-*	AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND
-*	SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,
-*	OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,
-*	APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION
-*	THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
-*	AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
-*	FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
-*	WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
-*	IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
-*	REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
-*	INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-*	FOR A PARTICULAR PURPOSE.
-*
-*	(c) Copyright 2002 Xilinx Inc.
-*	All rights reserved.
-*
-******************************************************************************/
-/******************************************************************************
-*
-* FILENAME:
-*
-* xipif.h
-*
-* DESCRIPTION:
-*
-* The XIpIf component encapsulates the IPIF, which is the standard interface
-* that IP must adhere to when connecting to a bus.  The purpose of this
-* component is to encapsulate the IPIF processing such that maintainability
-* is increased.	 This component does not provide a lot of abstraction from
-* from the details of the IPIF as it is considered a building block for
-* device drivers.  A device driver designer must be familiar with the
-* details of the IPIF hardware to use this component.
-*
-* The IPIF hardware provides a building block for all hardware devices such
-* that each device does not need to reimplement these building blocks. The
-* IPIF contains other building blocks, such as FIFOs and DMA channels, which
-* are also common to many devices.  These blocks are implemented as separate
-* hardware blocks and instantiated within the IPIF.  The primary hardware of
-* the IPIF which is implemented by this software component is the interrupt
-* architecture.	 Since there are many blocks of a device which may generate
-* interrupts, all the interrupt processing is contained in the common part
-* of the device, the IPIF.  This interrupt processing is for the device level
-* only and does not include any processing for the interrupt controller.
-*
-* A device is a mechanism such as an Ethernet MAC.  The device is made
-* up of several parts which include an IPIF and the IP.	 The IPIF contains most
-* of the device infrastructure which is common to all devices, such as
-* interrupt processing, DMA channels, and FIFOs.  The infrastructure may also
-* be referred to as IPIF internal blocks since they are part of the IPIF and
-* are separate blocks that can be selected based upon the needs of the device.
-* The IP of the device is the logic that is unique to the device and interfaces
-* to the IPIF of the device.
-*
-* In general, there are two levels of registers within the IPIF.  The first
-* level, referred to as the device level, contains registers which are for the
-* entire device.  The second level, referred to as the IP level, contains
-* registers which are specific to the IP of the device.	 The two levels of
-* registers are designed to be hierarchical such that the device level is
-* is a more general register set above the more specific registers of the IP.
-* The IP level of registers provides functionality which is typically common
-* across all devices and allows IP designers to focus on the unique aspects
-* of the IP.
-*
-* Critical Sections
-*
-* It is the responsibility of the device driver designer to use critical
-* sections as necessary when calling functions of the IPIF.  This component
-* does not use critical sections and it does access registers using
-* read-modify-write operations.	 Calls to IPIF functions from a main thread
-* and from an interrupt context could produce unpredictable behavior such that
-* the caller must provide the appropriate critical sections.
-*
-* Mutual Exclusion
-*
-* The functions of the IPIF are not thread safe such that the caller of all
-* functions is responsible for ensuring mutual exclusion for an IPIF.  Mutual
-* exclusion across multiple IPIF components is not necessary.
-*
-* NOTES:
-*
-* None.
-*
-* MODIFICATION HISTORY:
-*
-* Ver	Who  Date     Changes
-* ----- ---- -------- -----------------------------------------------
-* 1.23b jhl  02/27/01 Repartioned to minimize size
-*
-******************************************************************************/
-
-#ifndef XIPIF_H			/* prevent circular inclusions */
-#define XIPIF_H			/* by using protection macros */
-
-/***************************** Include Files *********************************/
-#include "xbasic_types.h"
-#include "xstatus.h"
-#include "xversion.h"
-
-/************************** Constant Definitions *****************************/
-
-/* the following constants define the register offsets for the registers of the
- * IPIF, there are some holes in the memory map for reserved addresses to allow
- * other registers to be added and still match the memory map of the interrupt
- * controller registers
- */
-#define XIIF_V123B_DISR_OFFSET	   0UL	/* device interrupt status register */
-#define XIIF_V123B_DIPR_OFFSET	   4UL	/* device interrupt pending register */
-#define XIIF_V123B_DIER_OFFSET	   8UL	/* device interrupt enable register */
-#define XIIF_V123B_DIIR_OFFSET	   24UL /* device interrupt ID register */
-#define XIIF_V123B_DGIER_OFFSET	   28UL /* device global interrupt enable reg */
-#define XIIF_V123B_IISR_OFFSET	   32UL /* IP interrupt status register */
-#define XIIF_V123B_IIER_OFFSET	   40UL /* IP interrupt enable register */
-#define XIIF_V123B_RESETR_OFFSET   64UL /* reset register */
-
-#define XIIF_V123B_RESET_MASK		  0xAUL
-
-/* the following constant is used for the device global interrupt enable
- * register, to enable all interrupts for the device, this is the only bit
- * in the register
- */
-#define XIIF_V123B_GINTR_ENABLE_MASK	  0x80000000UL
-
-/* the following constants contain the masks to identify each internal IPIF
- * condition in the device registers of the IPIF, interrupts are assigned
- * in the register from LSB to the MSB
- */
-#define XIIF_V123B_ERROR_MASK		  1UL	/* LSB of the register */
-
-/* The following constants contain interrupt IDs which identify each internal
- * IPIF condition, this value must correlate with the mask constant for the
- * error
- */
-#define XIIF_V123B_ERROR_INTERRUPT_ID	  0	/* interrupt bit #, (LSB = 0) */
-#define XIIF_V123B_NO_INTERRUPT_ID	  128	/* no interrupts are pending */
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_RESET
-*
-* DESCRIPTION:
-*
-* Reset the IPIF component and hardware.  This is a destructive operation that
-* could cause the loss of data since resetting the IPIF of a device also
-* resets the device using the IPIF and any blocks, such as FIFOs or DMA
-* channels, within the IPIF.  All registers of the IPIF will contain their
-* reset value when this function returns.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-
-/* the following constant is used in the reset register to cause the IPIF to
- * reset
- */
-#define XIIF_V123B_RESET(RegBaseAddress) \
-    XIo_Out32(RegBaseAddress + XIIF_V123B_RESETR_OFFSET, XIIF_V123B_RESET_MASK)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_WRITE_DISR
-*
-* DESCRIPTION:
-*
-* This function sets the device interrupt status register to the value.
-* This register indicates the status of interrupt sources for a device
-* which contains the IPIF.  The status is independent of whether interrupts
-* are enabled and could be used for polling a device at a higher level rather
-* than a more detailed level.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* device which contains the IPIF.  With the exception of some internal IPIF
-* conditions, the contents of this register are not latched but indicate
-* the live status of the interrupt sources within the device.  Writing any of
-* the non-latched bits of the register will have no effect on the register.
-*
-* For the latched bits of this register only, setting a bit which is zero
-* within this register causes an interrupt to generated.  The device global
-* interrupt enable register and the device interrupt enable register must be set
-* appropriately to allow an interrupt to be passed out of the device. The
-* interrupt is cleared by writing to this register with the bits to be
-* cleared set to a one and all others to zero.	This register implements a
-* toggle on write functionality meaning any bits which are set in the value
-* written cause the bits in the register to change to the opposite state.
-*
-* This function writes the specified value to the register such that
-* some bits may be set and others cleared.  It is the caller's responsibility
-* to get the value of the register prior to setting the value to prevent a
-* destructive behavior.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* Status contains the value to be written to the interrupt status register of
-* the device.  The only bits which can be written are the latched bits which
-* contain the internal IPIF conditions.	 The following values may be used to
-* set the status register or clear an interrupt condition.
-*
-*   XIIF_V123B_ERROR_MASK     Indicates a device error in the IPIF
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_WRITE_DISR(RegBaseAddress, Status) \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_DISR_OFFSET, (Status))
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_DISR
-*
-* DESCRIPTION:
-*
-* This function gets the device interrupt status register contents.
-* This register indicates the status of interrupt sources for a device
-* which contains the IPIF.  The status is independent of whether interrupts
-* are enabled and could be used for polling a device at a higher level.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* device which contains the IPIF.  With the exception of some internal IPIF
-* conditions, the contents of this register are not latched but indicate
-* the live status of the interrupt sources within the device.
-*
-* For only the latched bits of this register, the interrupt may be cleared by
-* writing to these bits in the status register.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* A status which contains the value read from the interrupt status register of
-* the device. The bit definitions are specific to the device with
-* the exception of the latched internal IPIF condition bits. The following
-* values may be used to detect internal IPIF conditions in the status.
-*
-*   XIIF_V123B_ERROR_MASK     Indicates a device error in the IPIF
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_READ_DISR(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_DISR_OFFSET)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_WRITE_DIER
-*
-* DESCRIPTION:
-*
-* This function sets the device interrupt enable register contents.
-* This register controls which interrupt sources of the device are allowed to
-* generate an interrupt.  The device global interrupt enable register must also
-* be set appropriately for an interrupt to be passed out of the device.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* device which contains the IPIF.  Setting a bit in this register enables that
-* interrupt source to generate an interrupt.  Clearing a bit in this register
-* disables interrupt generation for that interrupt source.
-*
-* This function writes only the specified value to the register such that
-* some interrupts source may be enabled and others disabled.  It is the
-* caller's responsibility to get the value of the interrupt enable register
-* prior to setting the value to prevent an destructive behavior.
-*
-* An interrupt source may not be enabled to generate an interrupt, but can
-* still be polled in the interrupt status register.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* Enable contains the value to be written to the interrupt enable register
-* of the device.  The bit definitions are specific to the device with
-* the exception of the internal IPIF conditions. The following
-* values may be used to enable the internal IPIF conditions interrupts.
-*
-*   XIIF_V123B_ERROR_MASK     Indicates a device error in the IPIF
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* Signature: u32 XIIF_V123B_WRITE_DIER(u32 RegBaseAddress,
-*					  u32 Enable)
-*
-******************************************************************************/
-#define XIIF_V123B_WRITE_DIER(RegBaseAddress, Enable) \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_DIER_OFFSET, (Enable))
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_DIER
-*
-* DESCRIPTION:
-*
-* This function gets the device interrupt enable register contents.
-* This register controls which interrupt sources of the device
-* are allowed to generate an interrupt.	 The device global interrupt enable
-* register and the device interrupt enable register must also be set
-* appropriately for an interrupt to be passed out of the device.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* device which contains the IPIF.  Setting a bit in this register enables that
-* interrupt source to generate an interrupt if the global enable is set
-* appropriately.  Clearing a bit in this register disables interrupt generation
-* for that interrupt source regardless of the global interrupt enable.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* The value read from the interrupt enable register of the device.  The bit
-* definitions are specific to the device with the exception of the internal
-* IPIF conditions. The following values may be used to determine from the
-* value if the internal IPIF conditions interrupts are enabled.
-*
-*   XIIF_V123B_ERROR_MASK     Indicates a device error in the IPIF
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_READ_DIER(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_DIER_OFFSET)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_DIPR
-*
-* DESCRIPTION:
-*
-* This function gets the device interrupt pending register contents.
-* This register indicates the pending interrupt sources, those that are waiting
-* to be serviced by the software, for a device which contains the IPIF.
-* An interrupt must be enabled in the interrupt enable register of the IPIF to
-* be pending.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* the device which contains the IPIF.  With the exception of some internal IPIF
-* conditions, the contents of this register are not latched since the condition
-* is latched in the IP interrupt status register, by an internal block of the
-* IPIF such as a FIFO or DMA channel, or by the IP of the device.  This register
-* is read only and is not latched, but it is necessary to acknowledge (clear)
-* the interrupt condition by performing the appropriate processing for the IP
-* or block within the IPIF.
-*
-* This register can be thought of as the contents of the interrupt status
-* register ANDed with the contents of the interrupt enable register.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* The value read from the interrupt pending register of the device.  The bit
-* definitions are specific to the device with the exception of the latched
-* internal IPIF condition bits. The following values may be used to detect
-* internal IPIF conditions in the value.
-*
-*   XIIF_V123B_ERROR_MASK     Indicates a device error in the IPIF
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_READ_DIPR(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_DIPR_OFFSET)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_DIIR
-*
-* DESCRIPTION:
-*
-* This function gets the device interrupt ID for the highest priority interrupt
-* which is pending from the interrupt ID register. This function provides
-* priority resolution such that faster interrupt processing is possible.
-* Without priority resolution, it is necessary for the software to read the
-* interrupt pending register and then check each interrupt source to determine
-* if an interrupt is pending.  Priority resolution becomes more important as the
-* number of interrupt sources becomes larger.
-*
-* Interrupt priorities are based upon the bit position of the interrupt in the
-* interrupt pending register with bit 0 being the highest priority. The
-* interrupt ID is the priority of the interrupt, 0 - 31, with 0 being the
-* highest priority. The interrupt ID register is live rather than latched such
-* that multiple calls to this function may not yield the same results.	A
-* special value, outside of the interrupt priority range of 0 - 31, is
-* contained in the register which indicates that no interrupt is pending.  This
-* may be useful for allowing software to continue processing interrupts in a
-* loop until there are no longer any interrupts pending.
-*
-* The interrupt ID is designed to allow a function pointer table to be used
-* in the software such that the interrupt ID is used as an index into that
-* table.  The function pointer table could contain an instance pointer, such
-* as to DMA channel, and a function pointer to the function which handles
-* that interrupt.  This design requires the interrupt processing of the device
-* driver to be partitioned into smaller more granular pieces based upon
-* hardware used by the device, such as DMA channels and FIFOs.
-*
-* It is not mandatory that this function be used by the device driver software.
-* It may choose to read the pending register and resolve the pending interrupt
-* priorities on it's own.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* An interrupt ID, 0 - 31, which identifies the highest priority interrupt
-* which is pending.  A value of XIIF_NO_INTERRUPT_ID indicates that there is
-* no interrupt pending. The following values may be used to identify the
-* interrupt ID for the internal IPIF interrupts.
-*
-*   XIIF_V123B_ERROR_INTERRUPT_ID     Indicates a device error in the IPIF
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_READ_DIIR(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_DIIR_OFFSET)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_GLOBAL_INTR_DISABLE
-*
-* DESCRIPTION:
-*
-* This function disables all interrupts for the device by writing to the global
-* interrupt enable register.  This register provides the ability to disable
-* interrupts without any modifications to the interrupt enable register such
-* that it is minimal effort to restore the interrupts to the previous enabled
-* state.  The corresponding function, XIpIf_GlobalIntrEnable, is provided to
-* restore the interrupts to the previous enabled state.	 This function is
-* designed to be used in critical sections of device drivers such that it is
-* not necessary to disable other device interrupts.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_GINTR_DISABLE(RegBaseAddress) \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_DGIER_OFFSET, 0)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_GINTR_ENABLE
-*
-* DESCRIPTION:
-*
-* This function writes to the global interrupt enable register to enable
-* interrupts from the device.  This register provides the ability to enable
-* interrupts without any modifications to the interrupt enable register such
-* that it is minimal effort to restore the interrupts to the previous enabled
-* state.  This function does not enable individual interrupts as the interrupt
-* enable register must be set appropriately.  This function is designed to be
-* used in critical sections of device drivers such that it is not necessary to
-* disable other device interrupts.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_GINTR_ENABLE(RegBaseAddress)		  \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_DGIER_OFFSET, \
-	       XIIF_V123B_GINTR_ENABLE_MASK)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_IS_GINTR_ENABLED
-*
-* DESCRIPTION:
-*
-* This function determines if interrupts are enabled at the global level by
-* reading the gloabl interrupt register. This register provides the ability to
-* disable interrupts without any modifications to the interrupt enable register
-* such that it is minimal effort to restore the interrupts to the previous
-* enabled state.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* XTRUE if interrupts are enabled for the IPIF, XFALSE otherwise.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_IS_GINTR_ENABLED(RegBaseAddress)		\
-    (XIo_In32((RegBaseAddress) + XIIF_V123B_DGIER_OFFSET) ==	\
-	      XIIF_V123B_GINTR_ENABLE_MASK)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_WRITE_IISR
-*
-* DESCRIPTION:
-*
-* This function sets the IP interrupt status register to the specified value.
-* This register indicates the status of interrupt sources for the IP of the
-* device.  The IP is defined as the part of the device that connects to the
-* IPIF.	 The status is independent of whether interrupts are enabled such that
-* the status register may also be polled when interrupts are not enabled.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* IP.  All bits of this register are latched. Setting a bit which is zero
-* within this register causes an interrupt to be generated.  The device global
-* interrupt enable register and the device interrupt enable register must be set
-* appropriately to allow an interrupt to be passed out of the device. The
-* interrupt is cleared by writing to this register with the bits to be
-* cleared set to a one and all others to zero.	This register implements a
-* toggle on write functionality meaning any bits which are set in the value
-* written cause the bits in the register to change to the opposite state.
-*
-* This function writes only the specified value to the register such that
-* some status bits may be set and others cleared.  It is the caller's
-* responsibility to get the value of the register prior to setting the value
-* to prevent an destructive behavior.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* Status contains the value to be written to the IP interrupt status
-* register.  The bit definitions are specific to the device IP.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_WRITE_IISR(RegBaseAddress, Status) \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_IISR_OFFSET, (Status))
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_IISR
-*
-* DESCRIPTION:
-*
-* This function gets the contents of the IP interrupt status register.
-* This register indicates the status of interrupt sources for the IP of the
-* device.  The IP is defined as the part of the device that connects to the
-* IPIF. The status is independent of whether interrupts are enabled such
-* that the status register may also be polled when interrupts are not enabled.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* device.  All bits of this register are latched.  Writing a 1 to a bit within
-* this register causes an interrupt to be generated if enabled in the interrupt
-* enable register and the global interrupt enable is set.  Since the status is
-* latched, each status bit must be acknowledged in order for the bit in the
-* status register to be updated.  Each bit can be acknowledged by writing a
-* 0 to the bit in the status register.
-
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* A status which contains the value read from the IP interrupt status register.
-* The bit definitions are specific to the device IP.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_READ_IISR(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_IISR_OFFSET)
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_WRITE_IIER
-*
-* DESCRIPTION:
-*
-* This function sets the IP interrupt enable register contents.	 This register
-* controls which interrupt sources of the IP are allowed to generate an
-* interrupt.  The global interrupt enable register and the device interrupt
-* enable register must also be set appropriately for an interrupt to be
-* passed out of the device containing the IPIF and the IP.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* IP.  Setting a bit in this register enables the interrupt source to generate
-* an interrupt.	 Clearing a bit in this register disables interrupt generation
-* for that interrupt source.
-*
-* This function writes only the specified value to the register such that
-* some interrupt sources may be enabled and others disabled.  It is the
-* caller's responsibility to get the value of the interrupt enable register
-* prior to setting the value to prevent an destructive behavior.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* Enable contains the value to be written to the IP interrupt enable register.
-* The bit definitions are specific to the device IP.
-*
-* RETURN VALUE:
-*
-* None.
-*
-* NOTES:
-*
-* None.
-*
-******************************************************************************/
-#define XIIF_V123B_WRITE_IIER(RegBaseAddress, Enable) \
-    XIo_Out32((RegBaseAddress) + XIIF_V123B_IIER_OFFSET, (Enable))
-
-/******************************************************************************
-*
-* MACRO:
-*
-* XIIF_V123B_READ_IIER
-*
-* DESCRIPTION:
-*
-*
-* This function gets the IP interrupt enable register contents.	 This register
-* controls which interrupt sources of the IP are allowed to generate an
-* interrupt.  The global interrupt enable register and the device interrupt
-* enable register must also be set appropriately for an interrupt to be
-* passed out of the device containing the IPIF and the IP.
-*
-* Each bit of the register correlates to a specific interrupt source within the
-* IP.  Setting a bit in this register enables the interrupt source to generate
-* an interrupt.	 Clearing a bit in this register disables interrupt generation
-* for that interrupt source.
-*
-* ARGUMENTS:
-*
-* RegBaseAddress contains the base address of the IPIF registers.
-*
-* RETURN VALUE:
-*
-* The contents read from the IP interrupt enable register.  The bit definitions
-* are specific to the device IP.
-*
-* NOTES:
-*
-* Signature: u32 XIIF_V123B_READ_IIER(u32 RegBaseAddress)
-*
-******************************************************************************/
-#define XIIF_V123B_READ_IIER(RegBaseAddress) \
-    XIo_In32((RegBaseAddress) + XIIF_V123B_IIER_OFFSET)
-
-/************************** Function Prototypes ******************************/
-
-/*
- * Initialization Functions
- */
-XStatus XIpIfV123b_SelfTest(u32 RegBaseAddress, u8 IpRegistersWidth);
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xpacket_fifo_v1_00_b.c b/board/xilinx/common/xpacket_fifo_v1_00_b.c
deleted file mode 100644
index ae2d6d43c..000000000
--- a/board/xilinx/common/xpacket_fifo_v1_00_b.c
+++ /dev/null
@@ -1,448 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************/
-/*
-*
-* @file xpacket_fifo_v1_00_b.c
-*
-* Contains functions for the XPacketFifoV100b component. See xpacket_fifo_v1_00_b.h
-* for more information about the component.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver   Who  Date     Changes
-* ----- ---- -------- -----------------------------------------------
-* 1.00b rpm 03/26/02  First release
-* </pre>
-*
-*****************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xio.h"
-#include "xstatus.h"
-#include "xpacket_fifo_v1_00_b.h"
-
-/************************** Constant Definitions *****************************/
-
-/* width of a FIFO word */
-
-#define XPF_FIFO_WIDTH_BYTE_COUNT       4UL
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************* Variable Definitions ******************************/
-
-/************************** Function Prototypes ******************************/
-
-/*****************************************************************************/
-/*
-*
-* This function initializes a packet FIFO.  Initialization resets the
-* FIFO such that it's empty and ready to use.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-* @param RegBaseAddress contains the base address of the registers for
-*        the packet FIFO.
-* @param DataBaseAddress contains the base address of the data for
-*        the packet FIFO.
-*
-* @return
-*
-* Always returns XST_SUCCESS.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XPacketFifoV100b_Initialize(XPacketFifoV100b * InstancePtr,
-			    u32 RegBaseAddress, u32 DataBaseAddress)
-{
-	/* assert to verify input argument are valid */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-
-	/* initialize the component variables to the specified state */
-
-	InstancePtr->RegBaseAddress = RegBaseAddress;
-	InstancePtr->DataBaseAddress = DataBaseAddress;
-	InstancePtr->IsReady = XCOMPONENT_IS_READY;
-
-	/* reset the FIFO such that it's empty and ready to use and indicate the
-	 * initialization was successful, note that the is ready variable must be
-	 * set prior to calling the reset function to prevent an assert
-	 */
-	XPF_V100B_RESET(InstancePtr);
-
-	return XST_SUCCESS;
-}
-
-/*****************************************************************************/
-/*
-*
-* This function performs a self-test on the specified packet FIFO.  The self
-* test resets the FIFO and reads a register to determine if it is the correct
-* reset value.  This test is destructive in that any data in the FIFO will
-* be lost.
-*
-* @param InstancePtr is a pointer to the packet FIFO to be operated on.
-*
-* @param FifoType specifies the type of FIFO, read or write, for the self test.
-*        The FIFO type is specified by the values XPF_READ_FIFO_TYPE or
-*        XPF_WRITE_FIFO_TYPE.
-*
-* @return
-*
-* XST_SUCCESS is returned if the selftest is successful, or
-* XST_PFIFO_BAD_REG_VALUE indicating that the value readback from the
-* occupancy/vacancy count register after a reset does not match the
-* specified reset value.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XPacketFifoV100b_SelfTest(XPacketFifoV100b * InstancePtr, u32 FifoType)
-{
-	u32 Register;
-
-	/* assert to verify valid input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID((FifoType == XPF_READ_FIFO_TYPE) ||
-			(FifoType == XPF_WRITE_FIFO_TYPE));
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* reset the fifo and then check to make sure the occupancy/vacancy
-	 * register contents are correct for a reset condition
-	 */
-	XPF_V100B_RESET(InstancePtr);
-
-	Register = XIo_In32(InstancePtr->RegBaseAddress +
-			    XPF_COUNT_STATUS_REG_OFFSET);
-
-	/* check the value of the register to ensure that it's correct for the
-	 * specified FIFO type since both FIFO types reset to empty, but a bit
-	 * in the register changes definition based upon FIFO type
-	 */
-
-	if (FifoType == XPF_READ_FIFO_TYPE) {
-		/* check the regiser value for a read FIFO which should be empty */
-
-		if (Register != XPF_EMPTY_FULL_MASK) {
-			return XST_PFIFO_BAD_REG_VALUE;
-		}
-	} else {
-		/* check the register value for a write FIFO which should not be full
-		 * on reset
-		 */
-		if ((Register & XPF_EMPTY_FULL_MASK) != 0) {
-			return XST_PFIFO_BAD_REG_VALUE;
-		}
-	}
-
-	/* the test was successful */
-
-	return XST_SUCCESS;
-}
-
-/*****************************************************************************/
-/*
-*
-* Read data from a FIFO and puts it into a specified buffer. The packet FIFO is
-* currently 32 bits wide such that an input buffer which is a series of bytes
-* is filled from the FIFO a word at a time. If the requested byte count is not
-* a multiple of 32 bit words, it is necessary for this function to format the
-* remaining 32 bit word from the FIFO into a series of bytes in the buffer.
-* There may be up to 3 extra bytes which must be extracted from the last word
-* of the FIFO and put into the buffer.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-* @param BufferPtr points to the memory buffer to write the data into. This
-*        buffer must be 32 bit aligned or an alignment exception could be
-*        generated. Since this buffer is a byte buffer, the data is assumed to
-*        be endian independent.
-* @param ByteCount contains the number of bytes to read from the FIFO. This
-*        number of bytes must be present in the FIFO or an error will be
-*        returned.
-*
-* @return
-*
-* XST_SUCCESS indicates the operation was successful.  If the number of
-* bytes specified by the byte count is not present in the FIFO
-* XST_PFIFO_LACK_OF_DATA is returned.
-*
-* If the function was successful, the specified buffer is modified to contain
-* the bytes which were removed from the FIFO.
-*
-* @note
-*
-* Note that the exact number of bytes which are present in the FIFO is
-* not known by this function.  It can only check for a number of 32 bit
-* words such that if the byte count specified is incorrect, but is still
-* possible based on the number of words in the FIFO, up to 3 garbage bytes
-* may be present at the end of the buffer.
-* <br><br>
-* This function assumes that if the device consuming data from the FIFO is
-* a byte device, the order of the bytes to be consumed is from the most
-* significant byte to the least significant byte of a 32 bit word removed
-* from the FIFO.
-*
-******************************************************************************/
-XStatus
-XPacketFifoV100b_Read(XPacketFifoV100b * InstancePtr,
-		      u8 * BufferPtr, u32 ByteCount)
-{
-	u32 FifoCount;
-	u32 WordCount;
-	u32 ExtraByteCount;
-	u32 *WordBuffer = (u32 *) BufferPtr;
-
-	/* assert to verify valid input arguments including 32 bit alignment of
-	 * the buffer pointer
-	 */
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(BufferPtr != NULL);
-	XASSERT_NONVOID(((u32) BufferPtr &
-			 (XPF_FIFO_WIDTH_BYTE_COUNT - 1)) == 0);
-	XASSERT_NONVOID(ByteCount != 0);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the count of how many 32 bit words are in the FIFO, if there aren't
-	 * enought words to satisfy the request, return an error
-	 */
-
-	FifoCount = XIo_In32(InstancePtr->RegBaseAddress +
-			     XPF_COUNT_STATUS_REG_OFFSET) & XPF_COUNT_MASK;
-
-	if ((FifoCount * XPF_FIFO_WIDTH_BYTE_COUNT) < ByteCount) {
-		return XST_PFIFO_LACK_OF_DATA;
-	}
-
-	/* calculate the number of words to read from the FIFO before the word
-	 * containing the extra bytes, and calculate the number of extra bytes
-	 * the extra bytes are defined as those at the end of the buffer when
-	 * the buffer does not end on a 32 bit boundary
-	 */
-	WordCount = ByteCount / XPF_FIFO_WIDTH_BYTE_COUNT;
-	ExtraByteCount = ByteCount % XPF_FIFO_WIDTH_BYTE_COUNT;
-
-	/* Read the 32 bit words from the FIFO for all the buffer except the
-	 * last word which contains the extra bytes, the following code assumes
-	 * that the buffer is 32 bit aligned, otherwise an alignment exception could
-	 * be generated
-	 */
-	for (FifoCount = 0; FifoCount < WordCount; FifoCount++) {
-		WordBuffer[FifoCount] = XIo_In32(InstancePtr->DataBaseAddress);
-	}
-
-	/* if there are extra bytes to handle, read the last word from the FIFO
-	 * and insert the extra bytes into the buffer
-	 */
-	if (ExtraByteCount > 0) {
-		u32 LastWord;
-		u8 *ExtraBytesBuffer = (u8 *) (WordBuffer + WordCount);
-
-		/* get the last word from the FIFO for the extra bytes */
-
-		LastWord = XIo_In32(InstancePtr->DataBaseAddress);
-
-		/* one extra byte in the last word, put the byte into the next location
-		 * of the buffer, bytes in a word of the FIFO are ordered from most
-		 * significant byte to least
-		 */
-		if (ExtraByteCount == 1) {
-			ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
-		}
-
-		/* two extra bytes in the last word, put each byte into the next two
-		 * locations of the buffer
-		 */
-		else if (ExtraByteCount == 2) {
-			ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
-			ExtraBytesBuffer[1] = (u8) (LastWord >> 16);
-		}
-		/* three extra bytes in the last word, put each byte into the next three
-		 * locations of the buffer
-		 */
-		else if (ExtraByteCount == 3) {
-			ExtraBytesBuffer[0] = (u8) (LastWord >> 24);
-			ExtraBytesBuffer[1] = (u8) (LastWord >> 16);
-			ExtraBytesBuffer[2] = (u8) (LastWord >> 8);
-		}
-	}
-	return XST_SUCCESS;
-}
-
-/*****************************************************************************/
-/*
-*
-* Write data into a packet FIFO. The packet FIFO is currently 32 bits wide
-* such that an input buffer which is a series of bytes must be written into the
-* FIFO a word at a time. If the buffer is not a multiple of 32 bit words, it is
-* necessary for this function to format the remaining bytes into a single 32
-* bit word to be inserted into the FIFO. This is necessary to avoid any
-* accesses past the end of the buffer.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-* @param BufferPtr points to the memory buffer that data is to be read from
-*        and written into the FIFO. Since this buffer is a byte buffer, the data
-*        is assumed to be endian independent. This buffer must be 32 bit aligned
-*        or an alignment exception could be generated.
-* @param ByteCount contains the number of bytes to read from the buffer and to
-*        write to the FIFO.
-*
-* @return
-*
-* XST_SUCCESS is returned if the operation succeeded.  If there is not enough
-* room in the FIFO to hold the specified bytes, XST_PFIFO_NO_ROOM is
-* returned.
-*
-* @note
-*
-* This function assumes that if the device inserting data into the FIFO is
-* a byte device, the order of the bytes in each 32 bit word is from the most
-* significant byte to the least significant byte.
-*
-******************************************************************************/
-XStatus
-XPacketFifoV100b_Write(XPacketFifoV100b * InstancePtr,
-		       u8 * BufferPtr, u32 ByteCount)
-{
-	u32 FifoCount;
-	u32 WordCount;
-	u32 ExtraByteCount;
-	u32 *WordBuffer = (u32 *) BufferPtr;
-
-	/* assert to verify valid input arguments including 32 bit alignment of
-	 * the buffer pointer
-	 */
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(BufferPtr != NULL);
-	XASSERT_NONVOID(((u32) BufferPtr &
-			 (XPF_FIFO_WIDTH_BYTE_COUNT - 1)) == 0);
-	XASSERT_NONVOID(ByteCount != 0);
-	XASSERT_NONVOID(InstancePtr->IsReady == XCOMPONENT_IS_READY);
-
-	/* get the count of how many words may be inserted into the FIFO */
-
-	FifoCount = XIo_In32(InstancePtr->RegBaseAddress +
-			     XPF_COUNT_STATUS_REG_OFFSET) & XPF_COUNT_MASK;
-
-	/* Calculate the number of 32 bit words required to insert the specified
-	 * number of bytes in the FIFO and determine the number of extra bytes
-	 * if the buffer length is not a multiple of 32 bit words
-	 */
-
-	WordCount = ByteCount / XPF_FIFO_WIDTH_BYTE_COUNT;
-	ExtraByteCount = ByteCount % XPF_FIFO_WIDTH_BYTE_COUNT;
-
-	/* take into account the extra bytes in the total word count */
-
-	if (ExtraByteCount > 0) {
-		WordCount++;
-	}
-
-	/* if there's not enough room in the FIFO to hold the specified
-	 * number of bytes, then indicate an error,
-	 */
-	if (FifoCount < WordCount) {
-		return XST_PFIFO_NO_ROOM;
-	}
-
-	/* readjust the word count to not take into account the extra bytes */
-
-	if (ExtraByteCount > 0) {
-		WordCount--;
-	}
-
-	/* Write all the bytes of the buffer which can be written as 32 bit
-	 * words into the FIFO, waiting to handle the extra bytes seperately
-	 */
-	for (FifoCount = 0; FifoCount < WordCount; FifoCount++) {
-		XIo_Out32(InstancePtr->DataBaseAddress, WordBuffer[FifoCount]);
-	}
-
-	/* if there are extra bytes to handle, extract them from the buffer
-	 * and create a 32 bit word and write it to the FIFO
-	 */
-	if (ExtraByteCount > 0) {
-		u32 LastWord = 0;
-		u8 *ExtraBytesBuffer = (u8 *) (WordBuffer + WordCount);
-
-		/* one extra byte in the buffer, put the byte into the last word
-		 * to be inserted into the FIFO, perform this processing inline rather
-		 * than in a loop to help performance
-		 */
-		if (ExtraByteCount == 1) {
-			LastWord = ExtraBytesBuffer[0] << 24;
-		}
-
-		/* two extra bytes in the buffer, put each byte into the last word
-		 * to be inserted into the FIFO
-		 */
-		else if (ExtraByteCount == 2) {
-			LastWord = ExtraBytesBuffer[0] << 24 |
-			    ExtraBytesBuffer[1] << 16;
-		}
-
-		/* three extra bytes in the buffer, put each byte into the last word
-		 * to be inserted into the FIFO
-		 */
-		else if (ExtraByteCount == 3) {
-			LastWord = ExtraBytesBuffer[0] << 24 |
-			    ExtraBytesBuffer[1] << 16 |
-			    ExtraBytesBuffer[2] << 8;
-		}
-
-		/* write the last 32 bit word to the FIFO and return with no errors */
-
-		XIo_Out32(InstancePtr->DataBaseAddress, LastWord);
-	}
-
-	return XST_SUCCESS;
-}
diff --git a/board/xilinx/common/xpacket_fifo_v1_00_b.h b/board/xilinx/common/xpacket_fifo_v1_00_b.h
deleted file mode 100644
index 1cda0e8cc..000000000
--- a/board/xilinx/common/xpacket_fifo_v1_00_b.h
+++ /dev/null
@@ -1,306 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************/
-/*
-*
-* @file xpacket_fifo_v1_00_b.h
-*
-* This component is a common component because it's primary purpose is to
-* prevent code duplication in drivers. A driver which must handle a packet
-* FIFO uses this component rather than directly manipulating a packet FIFO.
-*
-* A FIFO is a device which has dual port memory such that one user may be
-* inserting data into the FIFO while another is consuming data from the FIFO.
-* A packet FIFO is designed for use with packet protocols such as Ethernet and
-* ATM.  It is typically only used with devices when DMA and/or Scatter Gather
-* is used.  It differs from a nonpacket FIFO in that it does not provide any
-* interrupts for thresholds of the FIFO such that it is less useful without
-* DMA.
-*
-* @note
-*
-* This component has the capability to generate an interrupt when an error
-* condition occurs.  It is the user's responsibility to provide the interrupt
-* processing to handle the interrupt. This component provides the ability to
-* determine if that interrupt is active, a deadlock condition, and the ability
-* to reset the FIFO to clear the condition. In this condition, the device which
-* is using the FIFO should also be reset to prevent other problems. This error
-* condition could occur as a normal part of operation if the size of the FIFO
-* is not setup correctly.  See the hardware IP specification for more details.
-*
-* <pre>
-* MODIFICATION HISTORY:
-*
-* Ver   Who  Date     Changes
-* ----- ---- -------- -----------------------------------------------
-* 1.00b rpm 03/26/02  First release
-* </pre>
-*
-*****************************************************************************/
-#ifndef XPACKET_FIFO_H		/* prevent circular inclusions */
-#define XPACKET_FIFO_H		/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xstatus.h"
-
-/************************** Constant Definitions *****************************/
-
-/*
- * These constants specify the FIFO type and are mutually exclusive
- */
-#define XPF_READ_FIFO_TYPE      0	/* a read FIFO */
-#define XPF_WRITE_FIFO_TYPE     1	/* a write FIFO */
-
-/*
- * These constants define the offsets to each of the registers from the
- * register base address, each of the constants are a number of bytes
- */
-#define XPF_RESET_REG_OFFSET            0UL
-#define XPF_MODULE_INFO_REG_OFFSET      0UL
-#define XPF_COUNT_STATUS_REG_OFFSET     4UL
-
-/*
- * This constant is used with the Reset Register
- */
-#define XPF_RESET_FIFO_MASK             0x0000000A
-
-/*
- * These constants are used with the Occupancy/Vacancy Count Register. This
- * register also contains FIFO status
- */
-#define XPF_COUNT_MASK                  0x0000FFFF
-#define XPF_DEADLOCK_MASK               0x20000000
-#define XPF_ALMOST_EMPTY_FULL_MASK      0x40000000
-#define XPF_EMPTY_FULL_MASK             0x80000000
-
-/**************************** Type Definitions *******************************/
-
-/*
- * The XPacketFifo driver instance data. The driver is required to allocate a
- * variable of this type for every packet FIFO in the device.
- */
-typedef struct {
-	u32 RegBaseAddress;	/* Base address of registers */
-	u32 IsReady;		/* Device is initialized and ready */
-	u32 DataBaseAddress;	/* Base address of data for FIFOs */
-} XPacketFifoV100b;
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/*****************************************************************************/
-/*
-*
-* Reset the specified packet FIFO.  Resetting a FIFO will cause any data
-* contained in the FIFO to be lost.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* Signature: void XPF_V100B_RESET(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_RESET(InstancePtr) \
-    XIo_Out32((InstancePtr)->RegBaseAddress + XPF_RESET_REG_OFFSET, XPF_RESET_FIFO_MASK);
-
-/*****************************************************************************/
-/*
-*
-* Get the occupancy count for a read packet FIFO and the vacancy count for a
-* write packet FIFO. These counts indicate the number of 32-bit words
-* contained (occupancy) in the FIFO or the number of 32-bit words available
-* to write (vacancy) in the FIFO.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* The occupancy or vacancy count for the specified packet FIFO.
-*
-* @note
-*
-* Signature: u32 XPF_V100B_GET_COUNT(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_GET_COUNT(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_COUNT_MASK)
-
-/*****************************************************************************/
-/*
-*
-* Determine if the specified packet FIFO is almost empty. Almost empty is
-* defined for a read FIFO when there is only one data word in the FIFO.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* TRUE if the packet FIFO is almost empty, FALSE otherwise.
-*
-* @note
-*
-* Signature: u32 XPF_V100B_IS_ALMOST_EMPTY(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_IS_ALMOST_EMPTY(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_ALMOST_EMPTY_FULL_MASK)
-
-/*****************************************************************************/
-/*
-*
-* Determine if the specified packet FIFO is almost full. Almost full is
-* defined for a write FIFO when there is only one available data word in the
-* FIFO.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* TRUE if the packet FIFO is almost full, FALSE otherwise.
-*
-* @note
-*
-* Signature: u32 XPF_V100B_IS_ALMOST_FULL(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_IS_ALMOST_FULL(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_ALMOST_EMPTY_FULL_MASK)
-
-/*****************************************************************************/
-/*
-*
-* Determine if the specified packet FIFO is empty. This applies only to a
-* read FIFO.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* TRUE if the packet FIFO is empty, FALSE otherwise.
-*
-* @note
-*
-* Signature: u32 XPF_V100B_IS_EMPTY(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_IS_EMPTY(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_EMPTY_FULL_MASK)
-
-/*****************************************************************************/
-/*
-*
-* Determine if the specified packet FIFO is full. This applies only to a
-* write FIFO.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* TRUE if the packet FIFO is full, FALSE otherwise.
-*
-* @note
-*
-* Signature: u32 XPF_V100B_IS_FULL(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_IS_FULL(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_EMPTY_FULL_MASK)
-
-/*****************************************************************************/
-/*
-*
-* Determine if the specified packet FIFO is deadlocked.  This condition occurs
-* when the FIFO is full and empty at the same time and is caused by a packet
-* being written to the FIFO which exceeds the total data capacity of the FIFO.
-* It occurs because of the mark/restore features of the packet FIFO which allow
-* retransmission of a packet. The software should reset the FIFO and any devices
-* using the FIFO when this condition occurs.
-*
-* @param InstancePtr contains a pointer to the FIFO to operate on.
-*
-* @return
-*
-* TRUE if the packet FIFO is deadlocked, FALSE otherwise.
-*
-* @note
-*
-* This component has the capability to generate an interrupt when an error
-* condition occurs.  It is the user's responsibility to provide the interrupt
-* processing to handle the interrupt. This function provides the ability to
-* determine if a deadlock condition, and the ability to reset the FIFO to
-* clear the condition.
-*
-* In this condition, the device which is using the FIFO should also be reset
-* to prevent other problems. This error condition could occur as a normal part
-* of operation if the size of the FIFO is not setup correctly.
-*
-* Signature: u32 XPF_V100B_IS_DEADLOCKED(XPacketFifoV100b *InstancePtr)
-*
-******************************************************************************/
-#define XPF_V100B_IS_DEADLOCKED(InstancePtr) \
-    (XIo_In32((InstancePtr)->RegBaseAddress + XPF_COUNT_STATUS_REG_OFFSET) & \
-    XPF_DEADLOCK_MASK)
-
-/************************** Function Prototypes ******************************/
-
-/* Standard functions */
-
-XStatus XPacketFifoV100b_Initialize(XPacketFifoV100b * InstancePtr,
-				    u32 RegBaseAddress, u32 DataBaseAddress);
-XStatus XPacketFifoV100b_SelfTest(XPacketFifoV100b * InstancePtr, u32 FifoType);
-
-/* Data functions */
-
-XStatus XPacketFifoV100b_Read(XPacketFifoV100b * InstancePtr,
-			      u8 * ReadBufferPtr, u32 ByteCount);
-XStatus XPacketFifoV100b_Write(XPacketFifoV100b * InstancePtr,
-			       u8 * WriteBufferPtr, u32 ByteCount);
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xstatus.h b/board/xilinx/common/xstatus.h
deleted file mode 100644
index ffda4d7d4..000000000
--- a/board/xilinx/common/xstatus.h
+++ /dev/null
@@ -1,347 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************/
-/**
-*
-* @file xstatus.h
-*
-* This file contains Xilinx software status codes.  Status codes have their
-* own data type called XStatus.  These codes are used throughout the Xilinx
-* device drivers.
-*
-******************************************************************************/
-
-#ifndef XSTATUS_H		/* prevent circular inclusions */
-#define XSTATUS_H		/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-
-/************************** Constant Definitions *****************************/
-
-/*********************** Common statuses 0 - 500 *****************************/
-
-#define XST_SUCCESS                     0L
-#define XST_FAILURE                     1L
-#define XST_DEVICE_NOT_FOUND            2L
-#define XST_DEVICE_BLOCK_NOT_FOUND      3L
-#define XST_INVALID_VERSION             4L
-#define XST_DEVICE_IS_STARTED           5L
-#define XST_DEVICE_IS_STOPPED           6L
-#define XST_FIFO_ERROR                  7L	/* an error occurred during an
-						   operation with a FIFO such as
-						   an underrun or overrun, this
-						   error requires the device to
-						   be reset */
-#define XST_RESET_ERROR                 8L	/* an error occurred which requires
-						   the device to be reset */
-#define XST_DMA_ERROR                   9L	/* a DMA error occurred, this error
-						   typically requires the device
-						   using the DMA to be reset */
-#define XST_NOT_POLLED                  10L	/* the device is not configured for
-						   polled mode operation */
-#define XST_FIFO_NO_ROOM                11L	/* a FIFO did not have room to put
-						   the specified data into */
-#define XST_BUFFER_TOO_SMALL            12L	/* the buffer is not large enough
-						   to hold the expected data */
-#define XST_NO_DATA                     13L	/* there was no data available */
-#define XST_REGISTER_ERROR              14L	/* a register did not contain the
-						   expected value */
-#define XST_INVALID_PARAM               15L	/* an invalid parameter was passed
-						   into the function */
-#define XST_NOT_SGDMA                   16L	/* the device is not configured for
-						   scatter-gather DMA operation */
-#define XST_LOOPBACK_ERROR              17L	/* a loopback test failed */
-#define XST_NO_CALLBACK                 18L	/* a callback has not yet been
-						 * registered */
-#define XST_NO_FEATURE                  19L	/* device is not configured with
-						 * the requested feature */
-#define XST_NOT_INTERRUPT               20L	/* device is not configured for
-						 * interrupt mode operation */
-#define XST_DEVICE_BUSY                 21L	/* device is busy */
-#define XST_ERROR_COUNT_MAX             22L	/* the error counters of a device
-						 * have maxed out */
-#define XST_IS_STARTED                  23L	/* used when part of device is
-						 * already started i.e.
-						 * sub channel */
-#define XST_IS_STOPPED                  24L	/* used when part of device is
-						 * already stopped i.e.
-						 * sub channel */
-
-/***************** Utility Component statuses 401 - 500  *********************/
-
-#define XST_MEMTEST_FAILED              401L	/* memory test failed */
-
-/***************** Common Components statuses 501 - 1000 *********************/
-
-/********************* Packet Fifo statuses 501 - 510 ************************/
-
-#define XST_PFIFO_LACK_OF_DATA          501L	/* not enough data in FIFO   */
-#define XST_PFIFO_NO_ROOM               502L	/* not enough room in FIFO   */
-#define XST_PFIFO_BAD_REG_VALUE         503L	/* self test, a register value
-						   was invalid after reset */
-
-/************************** DMA statuses 511 - 530 ***************************/
-
-#define XST_DMA_TRANSFER_ERROR          511L	/* self test, DMA transfer
-						   failed */
-#define XST_DMA_RESET_REGISTER_ERROR    512L	/* self test, a register value
-						   was invalid after reset */
-#define XST_DMA_SG_LIST_EMPTY           513L	/* scatter gather list contains
-						   no buffer descriptors ready
-						   to be processed */
-#define XST_DMA_SG_IS_STARTED           514L	/* scatter gather not stopped */
-#define XST_DMA_SG_IS_STOPPED           515L	/* scatter gather not running */
-#define XST_DMA_SG_LIST_FULL            517L	/* all the buffer desciptors of
-						   the scatter gather list are
-						   being used */
-#define XST_DMA_SG_BD_LOCKED            518L	/* the scatter gather buffer
-						   descriptor which is to be
-						   copied over in the scatter
-						   list is locked */
-#define XST_DMA_SG_NOTHING_TO_COMMIT    519L	/* no buffer descriptors have been
-						   put into the scatter gather
-						   list to be commited */
-#define XST_DMA_SG_COUNT_EXCEEDED       521L	/* the packet count threshold
-						   specified was larger than the
-						   total # of buffer descriptors
-						   in the scatter gather list */
-#define XST_DMA_SG_LIST_EXISTS          522L	/* the scatter gather list has
-						   already been created */
-#define XST_DMA_SG_NO_LIST              523L	/* no scatter gather list has
-						   been created */
-#define XST_DMA_SG_BD_NOT_COMMITTED     524L	/* the buffer descriptor which was
-						   being started was not committed
-						   to the list */
-#define XST_DMA_SG_NO_DATA              525L	/* the buffer descriptor to start
-						   has already been used by the
-						   hardware so it can't be reused
-						 */
-
-/************************** IPIF statuses 531 - 550 ***************************/
-
-#define XST_IPIF_REG_WIDTH_ERROR        531L	/* an invalid register width
-						   was passed into the function */
-#define XST_IPIF_RESET_REGISTER_ERROR   532L	/* the value of a register at
-						   reset was not valid */
-#define XST_IPIF_DEVICE_STATUS_ERROR    533L	/* a write to the device interrupt
-						   status register did not read
-						   back correctly */
-#define XST_IPIF_DEVICE_ACK_ERROR       534L	/* the device interrupt status
-						   register did not reset when
-						   acked */
-#define XST_IPIF_DEVICE_ENABLE_ERROR    535L	/* the device interrupt enable
-						   register was not updated when
-						   other registers changed */
-#define XST_IPIF_IP_STATUS_ERROR        536L	/* a write to the IP interrupt
-						   status register did not read
-						   back correctly */
-#define XST_IPIF_IP_ACK_ERROR           537L	/* the IP interrupt status register
-						   did not reset when acked */
-#define XST_IPIF_IP_ENABLE_ERROR        538L	/* IP interrupt enable register was
-						   not updated correctly when other
-						   registers changed */
-#define XST_IPIF_DEVICE_PENDING_ERROR   539L	/* The device interrupt pending
-						   register did not indicate the
-						   expected value */
-#define XST_IPIF_DEVICE_ID_ERROR        540L	/* The device interrupt ID register
-						   did not indicate the expected
-						   value */
-
-/****************** Device specific statuses 1001 - 4095 *********************/
-
-/********************* Ethernet statuses 1001 - 1050 *************************/
-
-#define XST_EMAC_MEMORY_SIZE_ERROR  1001L	/* Memory space is not big enough
-						 * to hold the minimum number of
-						 * buffers or descriptors */
-#define XST_EMAC_MEMORY_ALLOC_ERROR 1002L	/* Memory allocation failed */
-#define XST_EMAC_MII_READ_ERROR     1003L	/* MII read error */
-#define XST_EMAC_MII_BUSY           1004L	/* An MII operation is in progress */
-#define XST_EMAC_OUT_OF_BUFFERS     1005L	/* Adapter is out of buffers */
-#define XST_EMAC_PARSE_ERROR        1006L	/* Invalid adapter init string */
-#define XST_EMAC_COLLISION_ERROR    1007L	/* Excess deferral or late
-						 * collision on polled send */
-
-/*********************** UART statuses 1051 - 1075 ***************************/
-#define XST_UART
-
-#define XST_UART_INIT_ERROR         1051L
-#define XST_UART_START_ERROR        1052L
-#define XST_UART_CONFIG_ERROR       1053L
-#define XST_UART_TEST_FAIL          1054L
-#define XST_UART_BAUD_ERROR         1055L
-#define XST_UART_BAUD_RANGE         1056L
-
-/************************ IIC statuses 1076 - 1100 ***************************/
-
-#define XST_IIC_SELFTEST_FAILED         1076	/* self test failed            */
-#define XST_IIC_BUS_BUSY                1077	/* bus found busy              */
-#define XST_IIC_GENERAL_CALL_ADDRESS    1078	/* mastersend attempted with   */
-					     /* general call address        */
-#define XST_IIC_STAND_REG_RESET_ERROR   1079	/* A non parameterizable reg   */
-					     /* value after reset not valid */
-#define XST_IIC_TX_FIFO_REG_RESET_ERROR 1080	/* Tx fifo included in design  */
-					     /* value after reset not valid */
-#define XST_IIC_RX_FIFO_REG_RESET_ERROR 1081	/* Rx fifo included in design  */
-					     /* value after reset not valid */
-#define XST_IIC_TBA_REG_RESET_ERROR     1082	/* 10 bit addr incl in design  */
-					     /* value after reset not valid */
-#define XST_IIC_CR_READBACK_ERROR       1083	/* Read of the control register */
-					     /* didn't return value written */
-#define XST_IIC_DTR_READBACK_ERROR      1084	/* Read of the data Tx reg     */
-					     /* didn't return value written */
-#define XST_IIC_DRR_READBACK_ERROR      1085	/* Read of the data Receive reg */
-					     /* didn't return value written */
-#define XST_IIC_ADR_READBACK_ERROR      1086	/* Read of the data Tx reg     */
-					     /* didn't return value written */
-#define XST_IIC_TBA_READBACK_ERROR      1087	/* Read of the 10 bit addr reg */
-					     /* didn't return written value */
-#define XST_IIC_NOT_SLAVE               1088	/* The device isn't a slave    */
-
-/*********************** ATMC statuses 1101 - 1125 ***************************/
-
-#define XST_ATMC_ERROR_COUNT_MAX    1101L	/* the error counters in the ATM
-						   controller hit the max value
-						   which requires the statistics
-						   to be cleared */
-
-/*********************** Flash statuses 1126 - 1150 **************************/
-
-#define XST_FLASH_BUSY                1126L	/* Flash is erasing or programming */
-#define XST_FLASH_READY               1127L	/* Flash is ready for commands */
-#define XST_FLASH_ERROR               1128L	/* Flash had detected an internal
-						   error. Use XFlash_DeviceControl
-						   to retrieve device specific codes */
-#define XST_FLASH_ERASE_SUSPENDED     1129L	/* Flash is in suspended erase state */
-#define XST_FLASH_WRITE_SUSPENDED     1130L	/* Flash is in suspended write state */
-#define XST_FLASH_PART_NOT_SUPPORTED  1131L	/* Flash type not supported by
-						   driver */
-#define XST_FLASH_NOT_SUPPORTED       1132L	/* Operation not supported */
-#define XST_FLASH_TOO_MANY_REGIONS    1133L	/* Too many erase regions */
-#define XST_FLASH_TIMEOUT_ERROR       1134L	/* Programming or erase operation
-						   aborted due to a timeout */
-#define XST_FLASH_ADDRESS_ERROR       1135L	/* Accessed flash outside its
-						   addressible range */
-#define XST_FLASH_ALIGNMENT_ERROR     1136L	/* Write alignment error */
-#define XST_FLASH_BLOCKING_CALL_ERROR 1137L	/* Couldn't return immediately from
-						   write/erase function with
-						   XFL_NON_BLOCKING_WRITE/ERASE
-						   option cleared */
-#define XST_FLASH_CFI_QUERY_ERROR     1138L	/* Failed to query the device */
-
-/*********************** SPI statuses 1151 - 1175 ****************************/
-
-#define XST_SPI_MODE_FAULT          1151	/* master was selected as slave */
-#define XST_SPI_TRANSFER_DONE       1152	/* data transfer is complete */
-#define XST_SPI_TRANSMIT_UNDERRUN   1153	/* slave underruns transmit register */
-#define XST_SPI_RECEIVE_OVERRUN     1154	/* device overruns receive register */
-#define XST_SPI_NO_SLAVE            1155	/* no slave has been selected yet */
-#define XST_SPI_TOO_MANY_SLAVES     1156	/* more than one slave is being
-						 * selected */
-#define XST_SPI_NOT_MASTER          1157	/* operation is valid only as master */
-#define XST_SPI_SLAVE_ONLY          1158	/* device is configured as slave-only */
-#define XST_SPI_SLAVE_MODE_FAULT    1159	/* slave was selected while disabled */
-
-/********************** OPB Arbiter statuses 1176 - 1200 *********************/
-
-#define XST_OPBARB_INVALID_PRIORITY  1176	/* the priority registers have either
-						 * one master assigned to two or more
-						 * priorities, or one master not
-						 * assigned to any priority
-						 */
-#define XST_OPBARB_NOT_SUSPENDED     1177	/* an attempt was made to modify the
-						 * priority levels without first
-						 * suspending the use of priority
-						 * levels
-						 */
-#define XST_OPBARB_PARK_NOT_ENABLED  1178	/* bus parking by id was enabled but
-						 * bus parking was not enabled
-						 */
-#define XST_OPBARB_NOT_FIXED_PRIORITY 1179	/* the arbiter must be in fixed
-						 * priority mode to allow the
-						 * priorities to be changed
-						 */
-
-/************************ Intc statuses 1201 - 1225 **************************/
-
-#define XST_INTC_FAIL_SELFTEST      1201	/* self test failed */
-#define XST_INTC_CONNECT_ERROR      1202	/* interrupt already in use */
-
-/********************** TmrCtr statuses 1226 - 1250 **************************/
-
-#define XST_TMRCTR_TIMER_FAILED     1226	/* self test failed */
-
-/********************** WdtTb statuses 1251 - 1275 ***************************/
-
-#define XST_WDTTB_TIMER_FAILED      1251L
-
-/********************** PlbArb statuses 1276 - 1300 **************************/
-
-#define XST_PLBARB_FAIL_SELFTEST    1276L
-
-/********************** Plb2Opb statuses 1301 - 1325 *************************/
-
-#define XST_PLB2OPB_FAIL_SELFTEST   1301L
-
-/********************** Opb2Plb statuses 1326 - 1350 *************************/
-
-#define XST_OPB2PLB_FAIL_SELFTEST   1326L
-
-/********************** SysAce statuses 1351 - 1360 **************************/
-
-#define XST_SYSACE_NO_LOCK          1351L	/* No MPU lock has been granted */
-
-/********************** PCI Bridge statuses 1361 - 1375 **********************/
-
-#define XST_PCI_INVALID_ADDRESS     1361L
-
-/**************************** Type Definitions *******************************/
-
-/**
- * The status typedef.
- */
-typedef u32 XStatus;
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/common/xversion.c b/board/xilinx/common/xversion.c
deleted file mode 100644
index c8a691585..000000000
--- a/board/xilinx/common/xversion.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************
-*
-* This file contains the implementation of the XVersion component. This
-* component represents a version ID.  It is encapsulated within a component
-* so that it's type and implementation can change without affecting users of
-* it.
-*
-* The version is formatted as X.YYZ where X = 0 - 9, Y = 00 - 99, Z = a - z
-* X is the major revision, YY is the minor revision, and Z is the
-* compatability revision.
-*
-* Packed versions are also utilized for the configuration ROM such that
-* memory is minimized. A packed version consumes only 16 bits and is
-* formatted as follows.
-*
-* <pre>
-* Revision                  Range       Bit Positions
-*
-* Major Revision            0 - 9       Bits 15 - 12
-* Minor Revision            0 - 99      Bits 11 - 5
-* Compatability Revision    a - z       Bits 4 - 0
-</pre>
-*
-******************************************************************************/
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xversion.h"
-
-/************************** Constant Definitions *****************************/
-
-/* the following constants define the masks and shift values to allow the
- * revisions to be packed and unpacked, a packed version is packed into a 16
- * bit value in the following format, XXXXYYYYYYYZZZZZ, where XXXX is the
- * major revision, YYYYYYY is the minor revision, and ZZZZZ is the compatability
- * revision
- */
-#define XVE_MAJOR_SHIFT_VALUE       12
-#define XVE_MINOR_ONLY_MASK         0x0FE0
-#define XVE_MINOR_SHIFT_VALUE       5
-#define XVE_COMP_ONLY_MASK          0x001F
-
-/* the following constants define the specific characters of a version string
- * for each character of the revision, a version string is in the following
- * format, "X.YYZ" where X is the major revision (0 - 9), YY is the minor
- * revision (00 - 99), and Z is the compatability revision (a - z)
- */
-#define XVE_MAJOR_CHAR      0	/* major revision 0 - 9 */
-#define XVE_MINOR_TENS_CHAR 2	/* minor revision tens 0 - 9 */
-#define XVE_MINOR_ONES_CHAR 3	/* minor revision ones 0 - 9 */
-#define XVE_COMP_CHAR       4	/* compatability revision a - z */
-#define XVE_END_STRING_CHAR 5
-
-/**************************** Type Definitions *******************************/
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-static u32 IsVersionStringValid(s8 * StringPtr);
-
-/*****************************************************************************
-*
-* Unpacks a packed version into the specified version. Versions are packed
-* into the configuration ROM to reduce the amount storage. A packed version
-* is a binary format as oppossed to a non-packed version which is implemented
-* as a string.
-*
-* @param    InstancePtr points to the version to unpack the packed version into.
-* @param    PackedVersion contains the packed version to unpack.
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-void
-XVersion_UnPack(XVersion * InstancePtr, u16 PackedVersion)
-{
-	/* not implemented yet since CROM related */
-}
-
-/*****************************************************************************
-*
-* Packs a version into the specified packed version. Versions are packed into
-* the configuration ROM to reduce the amount storage.
-*
-* @param    InstancePtr points to the version to pack.
-* @param    PackedVersionPtr points to the packed version which will receive
-*           the new packed version.
-*
-* @return
-*
-* A status, XST_SUCCESS, indicating the packing was accomplished
-* successfully, or an error, XST_INVALID_VERSION, indicating the specified
-* input version was not valid such that the pack did not occur
-* <br><br>
-* The packed version pointed to by PackedVersionPtr is modified with the new
-* packed version if the status indicates success.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XVersion_Pack(XVersion * InstancePtr, u16 * PackedVersionPtr)
-{
-	/* not implemented yet since CROM related */
-
-	return XST_SUCCESS;
-}
-
-/*****************************************************************************
-*
-* Determines if two versions are equal.
-*
-* @param    InstancePtr points to the first version to be compared.
-* @param    VersionPtr points to a second version to be compared.
-*
-* @return
-*
-* TRUE if the versions are equal, FALSE otherwise.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-u32
-XVersion_IsEqual(XVersion * InstancePtr, XVersion * VersionPtr)
-{
-	u8 *Version1 = (u8 *) InstancePtr;
-	u8 *Version2 = (u8 *) VersionPtr;
-	int Index;
-
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(VersionPtr != NULL);
-
-	/* check each byte of the versions to see if they are the same,
-	 * return at any point a byte differs between them
-	 */
-	for (Index = 0; Index < sizeof (XVersion); Index++) {
-		if (Version1[Index] != Version2[Index]) {
-			return FALSE;
-		}
-	}
-
-	/* No byte was found to be different between the versions, so indicate
-	 * the versions are equal
-	 */
-	return TRUE;
-}
-
-/*****************************************************************************
-*
-* Converts a version to a null terminated string.
-*
-* @param    InstancePtr points to the version to convert.
-* @param    StringPtr points to the string which will be the result of the
-*           conversion. This does not need to point to a null terminated
-*           string as an input, but must point to storage which is an adequate
-*           amount to hold the result string.
-*
-* @return
-*
-* The null terminated string is inserted at the location pointed to by
-* StringPtr if the status indicates success.
-*
-* @note
-*
-* It is necessary for the caller to have already allocated the storage to
-* contain the string.  The amount of memory necessary for the string is
-* specified in the version header file.
-*
-******************************************************************************/
-void
-XVersion_ToString(XVersion * InstancePtr, s8 * StringPtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(StringPtr != NULL);
-
-	/* since version is implemented as a string, just copy the specified
-	 * input into the specified output
-	 */
-	XVersion_Copy(InstancePtr, (XVersion *) StringPtr);
-}
-
-/*****************************************************************************
-*
-* Initializes a version from a null terminated string. Since the string may not
-* be a format which is compatible with the version, an error could occur.
-*
-* @param    InstancePtr points to the version which is to be initialized.
-* @param    StringPtr points to a null terminated string which will be
-*           converted to a version.  The format of the string must match the
-*           version string format which is X.YYX where X = 0 - 9, YY = 00 - 99,
-*           Z = a - z.
-*
-* @return
-*
-* A status, XST_SUCCESS, indicating the conversion was accomplished
-* successfully, or XST_INVALID_VERSION indicating the version string format
-* was not valid.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-XStatus
-XVersion_FromString(XVersion * InstancePtr, s8 * StringPtr)
-{
-	/* assert to verify input arguments */
-
-	XASSERT_NONVOID(InstancePtr != NULL);
-	XASSERT_NONVOID(StringPtr != NULL);
-
-	/* if the version string specified is not valid, return an error */
-
-	if (!IsVersionStringValid(StringPtr)) {
-		return XST_INVALID_VERSION;
-	}
-
-	/* copy the specified string into the specified version and indicate the
-	 * conversion was successful
-	 */
-	XVersion_Copy((XVersion *) StringPtr, InstancePtr);
-
-	return XST_SUCCESS;
-}
-
-/*****************************************************************************
-*
-* Copies the contents of a version to another version.
-*
-* @param    InstancePtr points to the version which is the source of data for
-*           the copy operation.
-* @param    VersionPtr points to another version which is the destination of
-*           the copy operation.
-*
-* @return
-*
-* None.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-void
-XVersion_Copy(XVersion * InstancePtr, XVersion * VersionPtr)
-{
-	u8 *Source = (u8 *) InstancePtr;
-	u8 *Destination = (u8 *) VersionPtr;
-	int Index;
-
-	/* assert to verify input arguments */
-
-	XASSERT_VOID(InstancePtr != NULL);
-	XASSERT_VOID(VersionPtr != NULL);
-
-	/* copy each byte of the source version to the destination version */
-
-	for (Index = 0; Index < sizeof (XVersion); Index++) {
-		Destination[Index] = Source[Index];
-	}
-}
-
-/*****************************************************************************
-*
-* Determines if the specified version is valid.
-*
-* @param    StringPtr points to the string to be validated.
-*
-* @return
-*
-* TRUE if the version string is a valid format, FALSE otherwise.
-*
-* @note
-*
-* None.
-*
-******************************************************************************/
-static u32
-IsVersionStringValid(s8 * StringPtr)
-{
-	/* if the input string is not a valid format, "X.YYZ" where X = 0 - 9,
-	 * YY = 00 - 99, and Z = a - z, then indicate it's not valid
-	 */
-	if ((StringPtr[XVE_MAJOR_CHAR] < '0') ||
-	    (StringPtr[XVE_MAJOR_CHAR] > '9') ||
-	    (StringPtr[XVE_MINOR_TENS_CHAR] < '0') ||
-	    (StringPtr[XVE_MINOR_TENS_CHAR] > '9') ||
-	    (StringPtr[XVE_MINOR_ONES_CHAR] < '0') ||
-	    (StringPtr[XVE_MINOR_ONES_CHAR] > '9') ||
-	    (StringPtr[XVE_COMP_CHAR] < 'a') ||
-	    (StringPtr[XVE_COMP_CHAR] > 'z')) {
-		return FALSE;
-	}
-
-	return TRUE;
-}
diff --git a/board/xilinx/common/xversion.h b/board/xilinx/common/xversion.h
deleted file mode 100644
index 17f9da7a0..000000000
--- a/board/xilinx/common/xversion.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/******************************************************************************
-*
-*     Author: Xilinx, Inc.
-*
-*
-*     This program is free software; you can redistribute it and/or modify it
-*     under the terms of the GNU General Public License as published by the
-*     Free Software Foundation; either version 2 of the License, or (at your
-*     option) any later version.
-*
-*
-*     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
-*     COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
-*     ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
-*     XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
-*     FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
-*     ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
-*     XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
-*     THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
-*     WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
-*     CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
-*     FITNESS FOR A PARTICULAR PURPOSE.
-*
-*
-*     Xilinx hardware products are not intended for use in life support
-*     appliances, devices, or systems. Use in such applications is
-*     expressly prohibited.
-*
-*
-*     (c) Copyright 2002-2004 Xilinx Inc.
-*     All rights reserved.
-*
-*
-*     You should have received a copy of the GNU General Public License along
-*     with this program; if not, write to the Free Software Foundation, Inc.,
-*     675 Mass Ave, Cambridge, MA 02139, USA.
-*
-******************************************************************************/
-/*****************************************************************************
-*
-* This file contains the interface for the XVersion component. This
-* component represents a version ID.  It is encapsulated within a component
-* so that it's type and implementation can change without affecting users of
-* it.
-*
-* The version is formatted as X.YYZ where X = 0 - 9, Y = 00 - 99, Z = a - z
-* X is the major revision, YY is the minor revision, and Z is the
-* compatability revision.
-*
-* Packed versions are also utilized for the configuration ROM such that
-* memory is minimized. A packed version consumes only 16 bits and is
-* formatted as follows.
-*
-* <pre>
-* Revision                  Range       Bit Positions
-*
-* Major Revision            0 - 9       Bits 15 - 12
-* Minor Revision            0 - 99      Bits 11 - 5
-* Compatability Revision    a - z       Bits 4 - 0
-* </pre>
-*
-******************************************************************************/
-
-#ifndef XVERSION_H		/* prevent circular inclusions */
-#define XVERSION_H		/* by using protection macros */
-
-/***************************** Include Files *********************************/
-
-#include "xbasic_types.h"
-#include "xstatus.h"
-
-/************************** Constant Definitions *****************************/
-
-/**************************** Type Definitions *******************************/
-
-/* the following data type is used to hold a null terminated version string
- * consisting of the following format, "X.YYX"
- */
-typedef s8 XVersion[6];
-
-/***************** Macros (Inline Functions) Definitions *********************/
-
-/************************** Function Prototypes ******************************/
-
-void XVersion_UnPack(XVersion * InstancePtr, u16 PackedVersion);
-
-XStatus XVersion_Pack(XVersion * InstancePtr, u16 * PackedVersion);
-
-u32 XVersion_IsEqual(XVersion * InstancePtr, XVersion * VersionPtr);
-
-void XVersion_ToString(XVersion * InstancePtr, s8 * StringPtr);
-
-XStatus XVersion_FromString(XVersion * InstancePtr, s8 * StringPtr);
-
-void XVersion_Copy(XVersion * InstancePtr, XVersion * VersionPtr);
-
-#endif				/* end of protection macro */
diff --git a/board/xilinx/zynq/Makefile b/board/xilinx/zynq/Makefile
index ef4faa125..43c552dc3 100644
--- a/board/xilinx/zynq/Makefile
+++ b/board/xilinx/zynq/Makefile
@@ -22,9 +22,6 @@
 #
 
 include $(TOPDIR)/config.mk
-ifneq ($(OBJTREE),$(SRCTREE))
-$(shell mkdir -p $(obj)../common)
-endif
 
 LIB	= $(obj)lib$(BOARD).o