53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
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/*
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* arch/sh/drivers/dma/dma-sh.h
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*
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* Copyright (C) 2000 Takashi YOSHII
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* Copyright (C) 2003 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#ifndef __DMA_SH_H
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#define __DMA_SH_H
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/* Definitions for the SuperH DMAC */
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#define REQ_L 0x00000000
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#define REQ_E 0x00080000
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#define RACK_H 0x00000000
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#define RACK_L 0x00040000
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#define ACK_R 0x00000000
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#define ACK_W 0x00020000
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#define ACK_H 0x00000000
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#define ACK_L 0x00010000
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#define DM_INC 0x00004000
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#define DM_DEC 0x00008000
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#define SM_INC 0x00001000
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#define SM_DEC 0x00002000
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#define RS_IN 0x00000200
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#define RS_OUT 0x00000300
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#define TM_BURST 0x0000080
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#define TS_8 0x00000010
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#define TS_16 0x00000020
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#define TS_32 0x00000030
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#define TS_64 0x00000000
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#define TS_BLK 0x00000040
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#define CHCR_DE 0x00000001
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#define CHCR_TE 0x00000002
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#define CHCR_IE 0x00000004
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/* Define the default configuration for dual address memory-memory transfer.
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* The 0x400 value represents auto-request, external->external.
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*/
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#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32)
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#define DMAOR_COD 0x00000008
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#define DMAOR_AE 0x00000004
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#define DMAOR_NMIF 0x00000002
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#define DMAOR_DME 0x00000001
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#define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS)
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#endif /* __DMA_SH_H */
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