tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * arch/sh/drivers/dma/dma-sh.h
3 *
4 * Copyright (C) 2000 Takashi YOSHII
5 * Copyright (C) 2003 Paul Mundt
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License. See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11#ifndef __DMA_SH_H
12#define __DMA_SH_H
13
14/* Definitions for the SuperH DMAC */
15#define REQ_L 0x00000000
16#define REQ_E 0x00080000
17#define RACK_H 0x00000000
18#define RACK_L 0x00040000
19#define ACK_R 0x00000000
20#define ACK_W 0x00020000
21#define ACK_H 0x00000000
22#define ACK_L 0x00010000
23#define DM_INC 0x00004000
24#define DM_DEC 0x00008000
25#define SM_INC 0x00001000
26#define SM_DEC 0x00002000
27#define RS_IN 0x00000200
28#define RS_OUT 0x00000300
29#define TM_BURST 0x0000080
30#define TS_8 0x00000010
31#define TS_16 0x00000020
32#define TS_32 0x00000030
33#define TS_64 0x00000000
34#define TS_BLK 0x00000040
35#define CHCR_DE 0x00000001
36#define CHCR_TE 0x00000002
37#define CHCR_IE 0x00000004
38
39/* Define the default configuration for dual address memory-memory transfer.
40 * The 0x400 value represents auto-request, external->external.
41 */
42#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32)
43
44#define DMAOR_COD 0x00000008
45#define DMAOR_AE 0x00000004
46#define DMAOR_NMIF 0x00000002
47#define DMAOR_DME 0x00000001
48
49#define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS)
50
51#endif /* __DMA_SH_H */
52