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Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze

This commit is contained in:
Tom Rini 2013-02-04 09:07:34 -05:00
parent 10ec0f8a74 14d315b8b3
commit 2d795c9621
26 changed files with 121 additions and 6530 deletions
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1
arch/microblaze/lib/Makefile
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@ -29,6 +29,7 @@ SOBJS-y +=
COBJS-y += board.o
COBJS-y += bootm.o
COBJS-y += muldi3.o
SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))

91
arch/microblaze/lib/muldi3.c Normal file
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@ -0,0 +1,91 @@
/*
* U-boot - muldi3.c contains routines for mult and div
*
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
/* Generic function got from GNU gcc package, libgcc2.c */
#ifndef SI_TYPE_SIZE
#define SI_TYPE_SIZE 32
#endif
#define __ll_B (1L << (SI_TYPE_SIZE / 2))
#define __ll_lowpart(t) ((USItype) (t) % __ll_B)
#define __ll_highpart(t) ((USItype) (t) / __ll_B)
#define BITS_PER_UNIT 8
#if !defined(umul_ppmm)
#define umul_ppmm(w1, w0, u, v) \
do { \
USItype __x0, __x1, __x2, __x3; \
USItype __ul, __vl, __uh, __vh; \
\
__ul = __ll_lowpart(u); \
__uh = __ll_highpart(u); \
__vl = __ll_lowpart(v); \
__vh = __ll_highpart(v); \
\
__x0 = (USItype) __ul * __vl; \
__x1 = (USItype) __ul * __vh; \
__x2 = (USItype) __uh * __vl; \
__x3 = (USItype) __uh * __vh; \
\
__x1 += __ll_highpart(__x0); /* this can't give carry */\
__x1 += __x2; /* but this indeed can */ \
if (__x1 < __x2) /* did we get it? */ \
__x3 += __ll_B; /* yes, add it in the proper pos. */ \
\
(w1) = __x3 + __ll_highpart(__x1); \
(w0) = __ll_lowpart(__x1) * __ll_B + __ll_lowpart(__x0);\
} while (0)
#endif
#if !defined(__umulsidi3)
#define __umulsidi3(u, v) \
({DIunion __w; \
umul_ppmm(__w.s.high, __w.s.low, u, v); \
__w.ll; })
#endif
typedef unsigned int USItype __attribute__ ((mode(SI)));
typedef int SItype __attribute__ ((mode(SI)));
typedef int DItype __attribute__ ((mode(DI)));
typedef int word_type __attribute__ ((mode(__word__)));
struct DIstruct {
SItype low, high;
};
typedef union {
struct DIstruct s;
DItype ll;
} DIunion;
DItype __muldi3(DItype u, DItype v)
{
DIunion w;
DIunion uu, vv;
uu.ll = u, vv.ll = v;
/* panic("kernel panic for __muldi3"); */
w.ll = __umulsidi3(uu.s.low, vv.s.low);
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+ (USItype) uu.s.high * (USItype) vv.s.low);
return w.ll;
}

165
board/xilinx/common/xbasic_types.c
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@ -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)
{
}

283
board/xilinx/common/xbasic_types.h
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@ -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 */

252
board/xilinx/common/xbuf_descriptor.h
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@ -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 */

738
board/xilinx/common/xdma_channel.c
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@ -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);
}

291
board/xilinx/common/xdma_channel.h
View File

@ -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 */

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/******************************************************************************
*
* 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 */

1317
board/xilinx/common/xdma_channel_sg.c
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81
board/xilinx/common/xio.h
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/*
* 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 */

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/* $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;
}

746
board/xilinx/common/xipif_v1_23_b.h
View File

@ -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 */

448
board/xilinx/common/xpacket_fifo_v1_00_b.c
View File

@ -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;
}

306
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@ -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 */

347
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@ -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 */

350
board/xilinx/common/xversion.c
View File

@ -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;
}

97
board/xilinx/common/xversion.h
View File

@ -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 */

20
board/xilinx/microblaze-generic/microblaze-generic.c
View File

@ -53,29 +53,9 @@ int gpio_init (void)
return 0;
}
#ifdef CONFIG_SYS_FSL_2
void fsl_isr2 (void *arg) {
volatile int num;
*((unsigned int *)(CONFIG_SYS_GPIO_0_ADDR + 0x4)) =
++(*((unsigned int *)(CONFIG_SYS_GPIO_0_ADDR + 0x4)));
GET (num, 2);
NGET (num, 2);
puts("*");
}
int fsl_init2 (void) {
puts("fsl_init2\n");
install_interrupt_handler (FSL_INTR_2, fsl_isr2, NULL);
return 0;
}
#endif
void board_init(void)
{
gpio_init();
#ifdef CONFIG_SYS_FSL_2
fsl_init2();
#endif
}
int board_eth_init(bd_t *bis)

484
board/xilinx/xilinx_iic/xiic_l.c
View File

@ -1,484 +0,0 @@
/* $Id: xiic_l.c,v 1.2 2002/12/05 19:32:40 meinelte 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.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file xiic_l.c
*
* This file contains low-level driver functions that can be used to access the
* device. The user should refer to the hardware device specification for more
* details of the device operation.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- --- ------- -----------------------------------------------
* 1.01b jhl 5/13/02 First release
* 1.01b jhl 10/14/02 Corrected bug in the receive function, the setup of the
* interrupt status mask was not being done in the loop such
* that a read would sometimes fail on the last byte because
* the transmit error which should have been ignored was
* being used. This would leave an extra byte in the FIFO
* and the bus throttled such that the next operation would
* also fail. Also updated the receive function to not
* disable the device after the last byte until after the
* bus transitions to not busy which is more consistent
* with the expected behavior.
* 1.01c ecm 12/05/02 new rev
* </pre>
*
****************************************************************************/
/***************************** Include Files *******************************/
#include "xbasic_types.h"
#include "xio.h"
#include "xipif_v1_23_b.h"
#include "xiic_l.h"
/************************** Constant Definitions ***************************/
/**************************** Type Definitions *****************************/
/***************** Macros (Inline Functions) Definitions *******************/
/******************************************************************************
*
* This macro clears the specified interrupt in the IPIF interrupt status
* register. It is non-destructive in that the register is read and only the
* interrupt specified is cleared. Clearing an interrupt acknowledges it.
*
* @param BaseAddress contains the IPIF registers base address.
*
* @param InterruptMask contains the interrupts to be disabled
*
* @return
*
* None.
*
* @note
*
* Signature: void XIic_mClearIisr(u32 BaseAddress,
* u32 InterruptMask);
*
******************************************************************************/
#define XIic_mClearIisr(BaseAddress, InterruptMask) \
XIIF_V123B_WRITE_IISR((BaseAddress), \
XIIF_V123B_READ_IISR(BaseAddress) & (InterruptMask))
/******************************************************************************
*
* This macro sends the address for a 7 bit address during both read and write
* operations. It takes care of the details to format the address correctly.
* This macro is designed to be called internally to the drivers.
*
* @param SlaveAddress contains the address of the slave to send to.
*
* @param Operation indicates XIIC_READ_OPERATION or XIIC_WRITE_OPERATION
*
* @return
*
* None.
*
* @note
*
* Signature: void XIic_mSend7BitAddr(u16 SlaveAddress, u8 Operation);
*
******************************************************************************/
#define XIic_mSend7BitAddress(BaseAddress, SlaveAddress, Operation) \
{ \
u8 LocalAddr = (u8)(SlaveAddress << 1); \
LocalAddr = (LocalAddr & 0xFE) | (Operation); \
XIo_Out8(BaseAddress + XIIC_DTR_REG_OFFSET, LocalAddr); \
}
/************************** Function Prototypes ****************************/
static unsigned RecvData (u32 BaseAddress, u8 * BufferPtr,
unsigned ByteCount);
static unsigned SendData (u32 BaseAddress, u8 * BufferPtr,
unsigned ByteCount);
/************************** Variable Definitions **************************/
/****************************************************************************/
/**
* Receive data as a master on the IIC bus. This function receives the data
* using polled I/O and blocks until the data has been received. It only
* supports 7 bit addressing and non-repeated start modes of operation. The
* user is responsible for ensuring the bus is not busy if multiple masters
* are present on the bus.
*
* @param BaseAddress contains the base address of the IIC device.
* @param Address contains the 7 bit IIC address of the device to send the
* specified data to.
* @param BufferPtr points to the data to be sent.
* @param ByteCount is the number of bytes to be sent.
*
* @return
*
* The number of bytes received.
*
* @note
*
* None
*
******************************************************************************/
unsigned XIic_Recv (u32 BaseAddress, u8 Address,
u8 * BufferPtr, unsigned ByteCount)
{
u8 CntlReg;
unsigned RemainingByteCount;
/* Tx error is enabled incase the address (7 or 10) has no device to answer
* with Ack. When only one byte of data, must set NO ACK before address goes
* out therefore Tx error must not be enabled as it will go off immediately
* and the Rx full interrupt will be checked. If full, then the one byte
* was received and the Tx error will be disabled without sending an error
* callback msg.
*/
XIic_mClearIisr (BaseAddress,
XIIC_INTR_RX_FULL_MASK | XIIC_INTR_TX_ERROR_MASK |
XIIC_INTR_ARB_LOST_MASK);
/* Set receive FIFO occupancy depth for 1 byte (zero based)
*/
XIo_Out8 (BaseAddress + XIIC_RFD_REG_OFFSET, 0);
/* 7 bit slave address, send the address for a read operation
* and set the state to indicate the address has been sent
*/
XIic_mSend7BitAddress (BaseAddress, Address, XIIC_READ_OPERATION);
/* MSMS gets set after putting data in FIFO. Start the master receive
* operation by setting CR Bits MSMS to Master, if the buffer is only one
* byte, then it should not be acknowledged to indicate the end of data
*/
CntlReg = XIIC_CR_MSMS_MASK | XIIC_CR_ENABLE_DEVICE_MASK;
if (ByteCount == 1) {
CntlReg |= XIIC_CR_NO_ACK_MASK;
}
/* Write out the control register to start receiving data and call the
* function to receive each byte into the buffer
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET, CntlReg);
/* Clear the latched interrupt status for the bus not busy bit which must
* be done while the bus is busy
*/
XIic_mClearIisr (BaseAddress, XIIC_INTR_BNB_MASK);
/* Try to receive the data from the IIC bus */
RemainingByteCount = RecvData (BaseAddress, BufferPtr, ByteCount);
/*
* The receive is complete, disable the IIC device and return the number of
* bytes that was received
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET, 0);
/* Return the number of bytes that was received */
return ByteCount - RemainingByteCount;
}
/******************************************************************************
*
* Receive the specified data from the device that has been previously addressed
* on the IIC bus. This function assumes that the 7 bit address has been sent
* and it should wait for the transmit of the address to complete.
*
* @param BaseAddress contains the base address of the IIC device.
* @param BufferPtr points to the buffer to hold the data that is received.
* @param ByteCount is the number of bytes to be received.
*
* @return
*
* The number of bytes remaining to be received.
*
* @note
*
* This function does not take advantage of the receive FIFO because it is
* designed for minimal code space and complexity. It contains loops that
* that could cause the function not to return if the hardware is not working.
*
* This function assumes that the calling function will disable the IIC device
* after this function returns.
*
******************************************************************************/
static unsigned RecvData (u32 BaseAddress, u8 * BufferPtr, unsigned ByteCount)
{
u8 CntlReg;
u32 IntrStatusMask;
u32 IntrStatus;
/* Attempt to receive the specified number of bytes on the IIC bus */
while (ByteCount > 0) {
/* Setup the mask to use for checking errors because when receiving one
* byte OR the last byte of a multibyte message an error naturally
* occurs when the no ack is done to tell the slave the last byte
*/
if (ByteCount == 1) {
IntrStatusMask =
XIIC_INTR_ARB_LOST_MASK | XIIC_INTR_BNB_MASK;
} else {
IntrStatusMask =
XIIC_INTR_ARB_LOST_MASK |
XIIC_INTR_TX_ERROR_MASK | XIIC_INTR_BNB_MASK;
}
/* Wait for the previous transmit and the 1st receive to complete
* by checking the interrupt status register of the IPIF
*/
while (1) {
IntrStatus = XIIF_V123B_READ_IISR (BaseAddress);
if (IntrStatus & XIIC_INTR_RX_FULL_MASK) {
break;
}
/* Check the transmit error after the receive full because when
* sending only one byte transmit error will occur because of the
* no ack to indicate the end of the data
*/
if (IntrStatus & IntrStatusMask) {
return ByteCount;
}
}
CntlReg = XIo_In8 (BaseAddress + XIIC_CR_REG_OFFSET);
/* Special conditions exist for the last two bytes so check for them
* Note that the control register must be setup for these conditions
* before the data byte which was already received is read from the
* receive FIFO (while the bus is throttled
*/
if (ByteCount == 1) {
/* For the last data byte, it has already been read and no ack
* has been done, so clear MSMS while leaving the device enabled
* so it can get off the IIC bus appropriately with a stop.
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET,
XIIC_CR_ENABLE_DEVICE_MASK);
}
/* Before the last byte is received, set NOACK to tell the slave IIC
* device that it is the end, this must be done before reading the byte
* from the FIFO
*/
if (ByteCount == 2) {
/* Write control reg with NO ACK allowing last byte to
* have the No ack set to indicate to slave last byte read.
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET,
CntlReg | XIIC_CR_NO_ACK_MASK);
}
/* Read in data from the FIFO and unthrottle the bus such that the
* next byte is read from the IIC bus
*/
*BufferPtr++ = XIo_In8 (BaseAddress + XIIC_DRR_REG_OFFSET);
/* Clear the latched interrupt status so that it will be updated with
* the new state when it changes, this must be done after the receive
* register is read
*/
XIic_mClearIisr (BaseAddress, XIIC_INTR_RX_FULL_MASK |
XIIC_INTR_TX_ERROR_MASK |
XIIC_INTR_ARB_LOST_MASK);
ByteCount--;
}
/* Wait for the bus to transition to not busy before returning, the IIC
* device cannot be disabled until this occurs. It should transition as
* the MSMS bit of the control register was cleared before the last byte
* was read from the FIFO.
*/
while (1) {
if (XIIF_V123B_READ_IISR (BaseAddress) & XIIC_INTR_BNB_MASK) {
break;
}
}
return ByteCount;
}
/****************************************************************************/
/**
* Send data as a master on the IIC bus. This function sends the data
* using polled I/O and blocks until the data has been sent. It only supports
* 7 bit addressing and non-repeated start modes of operation. The user is
* responsible for ensuring the bus is not busy if multiple masters are present
* on the bus.
*
* @param BaseAddress contains the base address of the IIC device.
* @param Address contains the 7 bit IIC address of the device to send the
* specified data to.
* @param BufferPtr points to the data to be sent.
* @param ByteCount is the number of bytes to be sent.
*
* @return
*
* The number of bytes sent.
*
* @note
*
* None
*
******************************************************************************/
unsigned XIic_Send (u32 BaseAddress, u8 Address,
u8 * BufferPtr, unsigned ByteCount)
{
unsigned RemainingByteCount;
/* Put the address into the FIFO to be sent and indicate that the operation
* to be performed on the bus is a write operation
*/
XIic_mSend7BitAddress (BaseAddress, Address, XIIC_WRITE_OPERATION);
/* Clear the latched interrupt status so that it will be updated with the
* new state when it changes, this must be done after the address is put
* in the FIFO
*/
XIic_mClearIisr (BaseAddress, XIIC_INTR_TX_EMPTY_MASK |
XIIC_INTR_TX_ERROR_MASK | XIIC_INTR_ARB_LOST_MASK);
/* MSMS must be set after putting data into transmit FIFO, indicate the
* direction is transmit, this device is master and enable the IIC device
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET,
XIIC_CR_MSMS_MASK | XIIC_CR_DIR_IS_TX_MASK |
XIIC_CR_ENABLE_DEVICE_MASK);
/* Clear the latched interrupt
* status for the bus not busy bit which must be done while the bus is busy
*/
XIic_mClearIisr (BaseAddress, XIIC_INTR_BNB_MASK);
/* Send the specified data to the device on the IIC bus specified by the
* the address
*/
RemainingByteCount = SendData (BaseAddress, BufferPtr, ByteCount);
/*
* The send is complete, disable the IIC device and return the number of
* bytes that was sent
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET, 0);
return ByteCount - RemainingByteCount;
}
/******************************************************************************
*
* Send the specified buffer to the device that has been previously addressed
* on the IIC bus. This function assumes that the 7 bit address has been sent
* and it should wait for the transmit of the address to complete.
*
* @param BaseAddress contains the base address of the IIC device.
* @param BufferPtr points to the data to be sent.
* @param ByteCount is the number of bytes to be sent.
*
* @return
*
* The number of bytes remaining to be sent.
*
* @note
*
* This function does not take advantage of the transmit FIFO because it is
* designed for minimal code space and complexity. It contains loops that
* that could cause the function not to return if the hardware is not working.
*
******************************************************************************/
static unsigned SendData (u32 BaseAddress, u8 * BufferPtr, unsigned ByteCount)
{
u32 IntrStatus;
/* Send the specified number of bytes in the specified buffer by polling
* the device registers and blocking until complete
*/
while (ByteCount > 0) {
/* Wait for the transmit to be empty before sending any more data
* by polling the interrupt status register
*/
while (1) {
IntrStatus = XIIF_V123B_READ_IISR (BaseAddress);
if (IntrStatus & (XIIC_INTR_TX_ERROR_MASK |
XIIC_INTR_ARB_LOST_MASK |
XIIC_INTR_BNB_MASK)) {
return ByteCount;
}
if (IntrStatus & XIIC_INTR_TX_EMPTY_MASK) {
break;
}
}
/* If there is more than one byte to send then put the next byte to send
* into the transmit FIFO
*/
if (ByteCount > 1) {
XIo_Out8 (BaseAddress + XIIC_DTR_REG_OFFSET,
*BufferPtr++);
} else {
/* Set the stop condition before sending the last byte of data so that
* the stop condition will be generated immediately following the data
* This is done by clearing the MSMS bit in the control register.
*/
XIo_Out8 (BaseAddress + XIIC_CR_REG_OFFSET,
XIIC_CR_ENABLE_DEVICE_MASK |
XIIC_CR_DIR_IS_TX_MASK);
/* Put the last byte to send in the transmit FIFO */
XIo_Out8 (BaseAddress + XIIC_DTR_REG_OFFSET,
*BufferPtr++);
}
/* Clear the latched interrupt status register and this must be done after
* the transmit FIFO has been written to or it won't clear
*/
XIic_mClearIisr (BaseAddress, XIIC_INTR_TX_EMPTY_MASK);
/* Update the byte count to reflect the byte sent and clear the latched
* interrupt status so it will be updated for the new state
*/
ByteCount--;
}
/* Wait for the bus to transition to not busy before returning, the IIC
* device cannot be disabled until this occurs.
* Note that this is different from a receive operation because the stop
* condition causes the bus to go not busy.
*/
while (1) {
if (XIIF_V123B_READ_IISR (BaseAddress) & XIIC_INTR_BNB_MASK) {
break;
}
}
return ByteCount;
}

150
board/xilinx/xilinx_iic/xiic_l.h
View File

@ -1,150 +0,0 @@
/* $Id: xiic_l.h,v 1.2 2002/12/05 19:32:40 meinelte 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.
*
*****************************************************************************/
/****************************************************************************/
/**
*
* @file xiic_l.h
*
* This header file contains identifiers and low-level driver functions (or
* macros) that can be used to access the device. High-level driver functions
* are defined in xiic.h.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00b jhl 05/07/02 First release
* 1.01c ecm 12/05/02 new rev
* </pre>
*
*****************************************************************************/
#ifndef XIIC_L_H /* prevent circular inclusions */
#define XIIC_L_H /* by using protection macros */
/***************************** Include Files ********************************/
#include "xbasic_types.h"
/************************** Constant Definitions ****************************/
#define XIIC_MSB_OFFSET 3
#define XIIC_REG_OFFSET 0x100 + XIIC_MSB_OFFSET
/*
* Register offsets in bytes from RegisterBase. Three is added to the
* base offset to access LSB (IBM style) of the word
*/
#define XIIC_CR_REG_OFFSET 0x00+XIIC_REG_OFFSET /* Control Register */
#define XIIC_SR_REG_OFFSET 0x04+XIIC_REG_OFFSET /* Status Register */
#define XIIC_DTR_REG_OFFSET 0x08+XIIC_REG_OFFSET /* Data Tx Register */
#define XIIC_DRR_REG_OFFSET 0x0C+XIIC_REG_OFFSET /* Data Rx Register */
#define XIIC_ADR_REG_OFFSET 0x10+XIIC_REG_OFFSET /* Address Register */
#define XIIC_TFO_REG_OFFSET 0x14+XIIC_REG_OFFSET /* Tx FIFO Occupancy */
#define XIIC_RFO_REG_OFFSET 0x18+XIIC_REG_OFFSET /* Rx FIFO Occupancy */
#define XIIC_TBA_REG_OFFSET 0x1C+XIIC_REG_OFFSET /* 10 Bit Address reg */
#define XIIC_RFD_REG_OFFSET 0x20+XIIC_REG_OFFSET /* Rx FIFO Depth reg */
/* Control Register masks */
#define XIIC_CR_ENABLE_DEVICE_MASK 0x01 /* Device enable = 1 */
#define XIIC_CR_TX_FIFO_RESET_MASK 0x02 /* Transmit FIFO reset=1 */
#define XIIC_CR_MSMS_MASK 0x04 /* Master starts Txing=1 */
#define XIIC_CR_DIR_IS_TX_MASK 0x08 /* Dir of tx. Txing=1 */
#define XIIC_CR_NO_ACK_MASK 0x10 /* Tx Ack. NO ack = 1 */
#define XIIC_CR_REPEATED_START_MASK 0x20 /* Repeated start = 1 */
#define XIIC_CR_GENERAL_CALL_MASK 0x40 /* Gen Call enabled = 1 */
/* Status Register masks */
#define XIIC_SR_GEN_CALL_MASK 0x01 /* 1=a mstr issued a GC */
#define XIIC_SR_ADDR_AS_SLAVE_MASK 0x02 /* 1=when addr as slave */
#define XIIC_SR_BUS_BUSY_MASK 0x04 /* 1 = bus is busy */
#define XIIC_SR_MSTR_RDING_SLAVE_MASK 0x08 /* 1=Dir: mstr <-- slave */
#define XIIC_SR_TX_FIFO_FULL_MASK 0x10 /* 1 = Tx FIFO full */
#define XIIC_SR_RX_FIFO_FULL_MASK 0x20 /* 1 = Rx FIFO full */
#define XIIC_SR_RX_FIFO_EMPTY_MASK 0x40 /* 1 = Rx FIFO empty */
/* IPIF Interrupt Status Register masks Interrupt occurs when... */
#define XIIC_INTR_ARB_LOST_MASK 0x01 /* 1 = arbitration lost */
#define XIIC_INTR_TX_ERROR_MASK 0x02 /* 1=Tx error/msg complete*/
#define XIIC_INTR_TX_EMPTY_MASK 0x04 /* 1 = Tx FIFO/reg empty */
#define XIIC_INTR_RX_FULL_MASK 0x08 /* 1=Rx FIFO/reg=OCY level*/
#define XIIC_INTR_BNB_MASK 0x10 /* 1 = Bus not busy */
#define XIIC_INTR_AAS_MASK 0x20 /* 1 = when addr as slave */
#define XIIC_INTR_NAAS_MASK 0x40 /* 1 = not addr as slave */
#define XIIC_INTR_TX_HALF_MASK 0x80 /* 1 = TX FIFO half empty */
/* IPIF Device Interrupt Register masks */
#define XIIC_IPIF_IIC_MASK 0x00000004UL /* 1=inter enabled */
#define XIIC_IPIF_ERROR_MASK 0x00000001UL /* 1=inter enabled */
#define XIIC_IPIF_INTER_ENABLE_MASK (XIIC_IPIF_IIC_MASK | \
XIIC_IPIF_ERROR_MASK)
#define XIIC_TX_ADDR_SENT 0x00
#define XIIC_TX_ADDR_MSTR_RECV_MASK 0x02
/* The following constants specify the depth of the FIFOs */
#define IIC_RX_FIFO_DEPTH 16 /* Rx fifo capacity */
#define IIC_TX_FIFO_DEPTH 16 /* Tx fifo capacity */
/* The following constants specify groups of interrupts that are typically
* enabled or disables at the same time
*/
#define XIIC_TX_INTERRUPTS \
(XIIC_INTR_TX_ERROR_MASK | XIIC_INTR_TX_EMPTY_MASK | \
XIIC_INTR_TX_HALF_MASK)
#define XIIC_TX_RX_INTERRUPTS (XIIC_INTR_RX_FULL_MASK | XIIC_TX_INTERRUPTS)
/* The following constants are used with the following macros to specify the
* operation, a read or write operation.
*/
#define XIIC_READ_OPERATION 1
#define XIIC_WRITE_OPERATION 0
/* The following constants are used with the transmit FIFO fill function to
* specify the role which the IIC device is acting as, a master or a slave.
*/
#define XIIC_MASTER_ROLE 1
#define XIIC_SLAVE_ROLE 0
/**************************** Type Definitions ******************************/
/***************** Macros (Inline Functions) Definitions ********************/
/************************** Function Prototypes *****************************/
unsigned XIic_Recv(u32 BaseAddress, u8 Address,
u8 *BufferPtr, unsigned ByteCount);
unsigned XIic_Send(u32 BaseAddress, u8 Address,
u8 *BufferPtr, unsigned ByteCount);
#endif /* end of protection macro */

3
board/xilinx/zynq/Makefile
View File

@ -22,9 +22,6 @@
#
include $(TOPDIR)/config.mk
ifneq ($(OBJTREE),$(SRCTREE))
$(shell mkdir -p $(obj)../common)
endif
LIB = $(obj)lib$(BOARD).o

27
common/cmd_bdinfo.c
View File

@ -50,6 +50,25 @@ static void print_eth(int idx)
printf("%-12s= %s\n", name, val);
}
__maybe_unused
static void print_eths(void)
{
struct eth_device *dev;
int i = 0;
do {
dev = eth_get_dev_by_index(i);
if (dev) {
printf("eth%dname = %s\n", i, dev->name);
print_eth(i);
i++;
}
} while (dev);
printf("current eth = %s\n", eth_get_name());
printf("ip_addr = %s\n", getenv("ipaddr"));
}
__maybe_unused
static void print_lnum(const char *name, unsigned long long value)
{
@ -195,10 +214,9 @@ int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
print_num("sram size ", (ulong)bd->bi_sramsize);
#endif
#if defined(CONFIG_CMD_NET)
print_eth(0);
printf("ip_addr = %s\n", getenv("ipaddr"));
print_eths();
#endif
printf("baudrate = %u bps\n", (ulong)bd->bi_baudrate);
printf("baudrate = %u bps\n", bd->bi_baudrate);
return 0;
}
@ -366,8 +384,7 @@ int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
}
#if defined(CONFIG_CMD_NET)
print_eth(0);
printf("ip_addr = %s\n", getenv("ipaddr"));
print_eths();
#endif
printf("baudrate = %u bps\n", bd->bi_baudrate);
#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))

4
drivers/block/systemace.c
View File

@ -65,8 +65,8 @@ static void ace_writew(u16 val, unsigned off)
writeb(val, base + off);
writeb(val >> 8, base + off + 1);
#endif
}
out16(base + off, val);
} else
out16(base + off, val);
}
static u16 ace_readw(unsigned off)

2
drivers/spi/xilinx_spi.c
View File

@ -99,6 +99,8 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
debug("%s: bus:%i cs:%i base:%p mode:%x max_hz:%d\n", __func__,
bus, cs, xilspi->regs, xilspi->mode, xilspi->freq);
writel(SPISSR_RESET_VALUE, &xilspi->regs->srr);
return &xilspi->slave;
}

3
drivers/spi/xilinx_spi.h
View File

@ -119,6 +119,9 @@ struct xilinx_spi_reg {
#define SPIRFOR_OCYVAL_POS 0
#define SPIRFOR_OCYVAL_MASK (0xf << SPIRFOR_OCYVAL_POS)
/* SPI Software Reset Register (ssr) */
#define SPISSR_RESET_VALUE 0x0a
struct xilinx_spi_slave {
struct spi_slave slave;
struct xilinx_spi_reg *regs;

4
include/configs/microblaze-generic.h
View File

@ -120,10 +120,6 @@
# define CONFIG_SYS_TIMER_0_IRQ XILINX_TIMER_IRQ
#endif
/* FSL */
/* #define CONFIG_SYS_FSL_2 */
/* #define FSL_INTR_2 1 */
/*
* memory layout - Example
* CONFIG_SYS_TEXT_BASE = 0x1200_0000; defined in config.mk