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Diffstat (limited to 'arch/sh/drivers/dma/dma-sh.h')
| -rw-r--r-- | arch/sh/drivers/dma/dma-sh.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/sh/drivers/dma/dma-sh.h b/arch/sh/drivers/dma/dma-sh.h new file mode 100644 index 00000000000..dd9d547539a --- /dev/null +++ b/arch/sh/drivers/dma/dma-sh.h @@ -0,0 +1,52 @@ +/* + * 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 + +/* 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 TM_BURST 0x0000080 +#define TS_8 0x00000010 +#define TS_16 0x00000020 +#define TS_32 0x00000030 +#define TS_64 0x00000000 +#define TS_BLK 0x00000040 +#define CHCR_DE 0x00000001 +#define CHCR_TE 0x00000002 +#define CHCR_IE 0x00000004 + +/* 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 DMAOR_COD 0x00000008 +#define DMAOR_AE 0x00000004 +#define DMAOR_NMIF 0x00000002 +#define DMAOR_DME 0x00000001 + +#define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS) + +#endif /* __DMA_SH_H */ + |