/*
* arch/sh/drivers/dma/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_SH_H
#define __DMA_SH_H
#include <asm/cpu/dma.h>
/* 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
#define DM_DEC 0x00008000
#define SM_INC 0x00001000
#define SM_DEC 0x00002000
#define RS_IN 0x00000200
#define RS_OUT 0x00000300
#define TS_BLK 0x00000040
#define CHCR_DE 0x00000001
#define CHCR_TE 0x00000002
#define CHCR_IE 0x00000004
/* DMAOR definitions */
#define DMAOR_AE 0x00000004
#define DMAOR_NMIF 0x00000002
#define DMAOR_DME 0x00000001
/*
* Define the default configuration for dual address memory-memory transfer.
* The 0x400 value represents auto-request, external->external.
*/
#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32)
#define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS)
/*
* Subtypes that have fewer channels than this simply need to change
* CONFIG_NR_ONCHIP_DMA_CHANNELS. Likewise, subtypes with a larger number
* of channels should expand on this.
*
* For most subtypes we can easily figure these values out with some
* basic calculation, unfortunately on other subtypes these are more
* scattered, so we just leave it unrolled for simplicity.
*/
#define SAR ((unsigned long[]){SH_DMAC_BASE + 0x00, SH_DMAC_BASE + 0x10, \
SH_DMAC_BASE + 0x20, SH_DMAC_BASE + 0x30, \
SH_DMAC_BASE + 0x50, SH_DMAC_BASE + 0x60})
#define DAR ((unsigned long[]){SH_DMAC_BASE + 0x04, SH_DMAC_BASE + 0x14, \
SH_DMAC_BASE + 0x24, SH_DMAC_BASE + 0x34, \
SH_DMAC_BASE + 0x54, SH_DMAC_BASE + 0x64})
#define DMATCR ((unsigned long[]){SH_DMAC_BASE + 0x08, SH_DMAC_BASE + 0x18, \
SH_DMAC_BASE + 0x28, SH_DMAC_BASE + 0x38, \
SH_DMAC_BASE + 0x58, SH_DMAC_BASE + 0x68})
#define CHCR ((unsigned long[]){SH_DMAC_BASE + 0x0c, SH_DMAC_BASE + 0x1c, \
SH_DMAC_BASE + 0x2c, SH_DMAC_BASE + 0x3c, \
SH_DMAC_BASE + 0x5c, SH_DMAC_BASE + 0x6c})
#define DMAOR (SH_DMAC_BASE + 0x40)
#endif /* __DMA_SH_H */
