sh: Add support for R7780RP and R7780MP boards.
[linux-2.6.git] / include / asm-sh / cpu-sh4 / dma.h
1 #ifndef __ASM_CPU_SH4_DMA_H
2 #define __ASM_CPU_SH4_DMA_H
3
4 #define DMAOR_INIT      ( 0x8000 | DMAOR_DME )
5
6 #ifdef CONFIG_CPU_SH4A
7 #define SH_DMAC_BASE    0xfc808020
8
9 #define CHCR_TS_MASK    0x18
10 #define CHCR_TS_SHIFT   3
11
12 #include <asm/cpu/dma-sh7780.h>
13 #else
14 #define SH_DMAC_BASE    0xffa00000
15
16 /* Definitions for the SuperH DMAC */
17 #define TM_BURST        0x0000080
18 #define TS_8            0x00000010
19 #define TS_16           0x00000020
20 #define TS_32           0x00000030
21 #define TS_64           0x00000000
22
23 #define CHCR_TS_MASK    0x30
24 #define CHCR_TS_SHIFT   4
25
26 #define DMAOR_COD       0x00000008
27
28 /*
29  * The SuperH DMAC supports a number of transmit sizes, we list them here,
30  * with their respective values as they appear in the CHCR registers.
31  *
32  * Defaults to a 64-bit transfer size.
33  */
34 enum {
35         XMIT_SZ_64BIT,
36         XMIT_SZ_8BIT,
37         XMIT_SZ_16BIT,
38         XMIT_SZ_32BIT,
39         XMIT_SZ_256BIT,
40 };
41
42 /*
43  * The DMA count is defined as the number of bytes to transfer.
44  */
45 static unsigned int ts_shift[] __attribute__ ((used)) = {
46         [XMIT_SZ_64BIT]         = 3,
47         [XMIT_SZ_8BIT]          = 0,
48         [XMIT_SZ_16BIT]         = 1,
49         [XMIT_SZ_32BIT]         = 2,
50         [XMIT_SZ_256BIT]        = 5,
51 };
52 #endif
53
54 #endif /* __ASM_CPU_SH4_DMA_H */