Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_CPU_SH3_DMA_H |
| 2 | #define __ASM_CPU_SH3_DMA_H |
| 3 | |
| 4 | #define SH_DMAC_BASE 0xa4000020 |
| 5 | |
Paul Mundt | 0d83177 | 2006-01-16 22:14:09 -0800 | [diff] [blame] | 6 | /* Definitions for the SuperH DMAC */ |
| 7 | #define TM_BURST 0x00000020 |
| 8 | #define TS_8 0x00000000 |
| 9 | #define TS_16 0x00000008 |
| 10 | #define TS_32 0x00000010 |
| 11 | #define TS_128 0x00000018 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
Paul Mundt | 0d83177 | 2006-01-16 22:14:09 -0800 | [diff] [blame] | 13 | #define CHCR_TS_MASK 0x18 |
| 14 | #define CHCR_TS_SHIFT 3 |
| 15 | |
| 16 | #define DMAOR_INIT DMAOR_DME |
| 17 | |
| 18 | /* |
| 19 | * The SuperH DMAC supports a number of transmit sizes, we list them here, |
| 20 | * with their respective values as they appear in the CHCR registers. |
| 21 | */ |
| 22 | enum { |
| 23 | XMIT_SZ_8BIT, |
| 24 | XMIT_SZ_16BIT, |
| 25 | XMIT_SZ_32BIT, |
| 26 | XMIT_SZ_128BIT, |
| 27 | }; |
| 28 | |
| 29 | static unsigned int ts_shift[] __attribute__ ((used)) = { |
| 30 | [XMIT_SZ_8BIT] = 0, |
| 31 | [XMIT_SZ_16BIT] = 1, |
| 32 | [XMIT_SZ_32BIT] = 2, |
| 33 | [XMIT_SZ_128BIT] = 4, |
| 34 | }; |
| 35 | |
| 36 | #endif /* __ASM_CPU_SH3_DMA_H */ |