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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_CPU_SH4_DMA_H
2#define __ASM_CPU_SH4_DMA_H
3
Paul Mundt5283ecb2006-09-27 15:59:17 +09004#define DMAOR_INIT ( 0x8000 | DMAOR_DME )
5
Manuel Lauss9f8a5e32007-01-25 15:22:11 +09006/* SH7751/7760/7780 DMA IRQ sources */
7#define DMTE0_IRQ 34
8#define DMTE1_IRQ 35
9#define DMTE2_IRQ 36
10#define DMTE3_IRQ 37
11#define DMTE4_IRQ 44
12#define DMTE5_IRQ 45
13#define DMTE6_IRQ 46
14#define DMTE7_IRQ 47
15#define DMAE_IRQ 38
16
Paul Mundt0d831772006-01-16 22:14:09 -080017#ifdef CONFIG_CPU_SH4A
18#define SH_DMAC_BASE 0xfc808020
Paul Mundt5283ecb2006-09-27 15:59:17 +090019
20#define CHCR_TS_MASK 0x18
21#define CHCR_TS_SHIFT 3
22
23#include <asm/cpu/dma-sh7780.h>
Paul Mundt0d831772006-01-16 22:14:09 -080024#else
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#define SH_DMAC_BASE 0xffa00000
26
Paul Mundt0d831772006-01-16 22:14:09 -080027/* Definitions for the SuperH DMAC */
28#define TM_BURST 0x0000080
29#define TS_8 0x00000010
30#define TS_16 0x00000020
31#define TS_32 0x00000030
32#define TS_64 0x00000000
33
34#define CHCR_TS_MASK 0x30
35#define CHCR_TS_SHIFT 4
36
37#define DMAOR_COD 0x00000008
38
Paul Mundt0d831772006-01-16 22:14:09 -080039/*
40 * The SuperH DMAC supports a number of transmit sizes, we list them here,
41 * with their respective values as they appear in the CHCR registers.
42 *
43 * Defaults to a 64-bit transfer size.
44 */
45enum {
46 XMIT_SZ_64BIT,
47 XMIT_SZ_8BIT,
48 XMIT_SZ_16BIT,
49 XMIT_SZ_32BIT,
50 XMIT_SZ_256BIT,
51};
52
53/*
54 * The DMA count is defined as the number of bytes to transfer.
55 */
David Rientjesd16aaffa2007-05-09 02:35:28 -070056static unsigned int ts_shift[] __maybe_unused = {
Paul Mundt0d831772006-01-16 22:14:09 -080057 [XMIT_SZ_64BIT] = 3,
58 [XMIT_SZ_8BIT] = 0,
59 [XMIT_SZ_16BIT] = 1,
60 [XMIT_SZ_32BIT] = 2,
61 [XMIT_SZ_256BIT] = 5,
62};
Paul Mundt5283ecb2006-09-27 15:59:17 +090063#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
65#endif /* __ASM_CPU_SH4_DMA_H */