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- /*
- * 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 <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 TM_BUR 0x00000020
- #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 */
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