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DMA 的代码
dma.h
/*
* (C) Copyright 2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* This file is based on code
* (C) Copyright Motorola, Inc., 2000
*
* MPC8220 dma header file
*/
#ifndef __MP
_dma.asm
;****************************************************************************
;*
;* SciTech OS Portability Manager Library
;*
;* =====================================================
dma.h
#ifndef DMA_H
#define DMA_H
/*******************************************************
*
* copyright @ Motorola 1999
*
*******************************************************/
#define NUM_DMA_REG
_dma.asm
;****************************************************************************
;*
;* SciTech OS Portability Manager Library
;*
;* =====================================================
dma.h
#ifndef __DMA_H__
#define __DMA_H__
void Test_Zdma0(void);
void Test_Zdma1(void);
//void Test_Zdma0Xdreq(void);
#endif /*__DMA_H__*/
dma.c
/**********************************************************************
CAUTION: DMA operation is being done in cache-on state NOW.
So,some read value may be not same with real memory value
dma.err
"dma.c", line 146: Warning: signed constant overflow: '
dma.h
#ifndef DMA_H
#define DMA_H
/*******************************************************
*
* copyright @ Motorola 1999
*
*******************************************************/
#define NUM_DMA_REG
_dma.asm
;****************************************************************************
;*
;* SciTech OS Portability Manager Library
;*
;* =====================================================
dma.c
/* $Id: dma.c,v 1.1 2000/02/18 00:24:30 ralf Exp $
*
* Dynamic DMA mapping support.
*
* On RM200 there is no hardware dynamic DMA address translation,
* so consistent alloc/free are merely page a