Release 4.7 arch/sh/include/asm/dma-register.h

/*
 * Common header for the legacy SH DMA driver and the new dmaengine driver
 *
 * extracted from arch/sh/include/asm/dma-sh.h:
 *
 * Copyright (C) 2000  Takashi YOSHII
 * Copyright (C) 2003  Paul Mundt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#ifndef DMA_REGISTER_H

#define DMA_REGISTER_H

/* DMA registers */

#define SAR	0x00	
/* Source Address Register */

#define DAR	0x04	
/* Destination Address Register */

#define TCR	0x08	
/* Transfer Count Register */

#define CHCR	0x0C	
/* Channel Control Register */

#define DMAOR	0x40	
/* DMA Operation Register */

/* DMAOR definitions */

#define DMAOR_AE	0x00000004	
/* Address Error Flag */

#define DMAOR_NMIF	0x00000002

#define DMAOR_DME	0x00000001	
/* DMA Master Enable */

/* Definitions for the SuperH DMAC */

#define REQ_L	0x00000000

#define REQ_E	0x00080000

#define RACK_H	0x00000000

#define RACK_L	0x00040000

#define ACK_R	0x00000000

#define ACK_W	0x00020000

#define ACK_H	0x00000000

#define ACK_L	0x00010000

#define DM_INC	0x00004000	
/* Destination addresses are incremented */

#define DM_DEC	0x00008000	
/* Destination addresses are decremented */

#define DM_FIX	0x0000c000	
/* Destination address is fixed */

#define SM_INC	0x00001000	
/* Source addresses are incremented */

#define SM_DEC	0x00002000	
/* Source addresses are decremented */

#define SM_FIX	0x00003000	
/* Source address is fixed */

#define RS_IN	0x00000200

#define RS_OUT	0x00000300

#define RS_AUTO	0x00000400	
/* Auto Request */

#define RS_ERS	0x00000800	
/* DMA extended resource selector */

#define TS_BLK	0x00000040

#define TM_BUR	0x00000020

#define CHCR_DE	0x00000001	
/* DMA Enable */

#define CHCR_TE	0x00000002	
/* Transfer End Flag */

#define CHCR_IE	0x00000004	
/* Interrupt Enable */

#endif
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Directory: arch/sh/include/asm

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