2 * SH4 CPU-specific DMA definitions, used by both DMA drivers
4 * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 #ifndef CPU_DMA_REGISTER_H
11 #define CPU_DMA_REGISTER_H
13 /* SH7751/7760/7780 DMA IRQ sources */
15 #ifdef CONFIG_CPU_SH4A
17 #define DMAOR_INIT DMAOR_DME
19 #if defined(CONFIG_CPU_SUBTYPE_SH7343)
20 #define CHCR_TS_LOW_MASK 0x00000018
21 #define CHCR_TS_LOW_SHIFT 3
22 #define CHCR_TS_HIGH_MASK 0
23 #define CHCR_TS_HIGH_SHIFT 0
24 #elif defined(CONFIG_CPU_SUBTYPE_SH7722) || \
25 defined(CONFIG_CPU_SUBTYPE_SH7723) || \
26 defined(CONFIG_CPU_SUBTYPE_SH7724) || \
27 defined(CONFIG_CPU_SUBTYPE_SH7730) || \
28 defined(CONFIG_CPU_SUBTYPE_SH7786)
29 #define CHCR_TS_LOW_MASK 0x00000018
30 #define CHCR_TS_LOW_SHIFT 3
31 #define CHCR_TS_HIGH_MASK 0x00300000
32 #define CHCR_TS_HIGH_SHIFT (20 - 2) /* 2 bits for shifted low TS */
33 #elif defined(CONFIG_CPU_SUBTYPE_SH7757) || \
34 defined(CONFIG_CPU_SUBTYPE_SH7763) || \
35 defined(CONFIG_CPU_SUBTYPE_SH7764) || \
36 defined(CONFIG_CPU_SUBTYPE_SH7780) || \
37 defined(CONFIG_CPU_SUBTYPE_SH7785)
38 #define CHCR_TS_LOW_MASK 0x00000018
39 #define CHCR_TS_LOW_SHIFT 3
40 #define CHCR_TS_HIGH_MASK 0x00100000
41 #define CHCR_TS_HIGH_SHIFT (20 - 2) /* 2 bits for shifted low TS */
44 /* Transmit sizes and respective CHCR register values */
52 XMIT_SZ_128BIT_BLK
= 0xb,
53 XMIT_SZ_256BIT_BLK
= 0xc,
56 /* log2(size / 8) - used to calculate number of transfers */
59 [XMIT_SZ_16BIT] = 1, \
60 [XMIT_SZ_32BIT] = 2, \
61 [XMIT_SZ_64BIT] = 3, \
62 [XMIT_SZ_128BIT] = 4, \
63 [XMIT_SZ_256BIT] = 5, \
64 [XMIT_SZ_128BIT_BLK] = 4, \
65 [XMIT_SZ_256BIT_BLK] = 5, \
68 #define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \
69 (((i) & 0xc) << CHCR_TS_HIGH_SHIFT))
71 #else /* CONFIG_CPU_SH4A */
73 #define DMAOR_INIT (0x8000 | DMAOR_DME)
75 #define CHCR_TS_LOW_MASK 0x70
76 #define CHCR_TS_LOW_SHIFT 4
77 #define CHCR_TS_HIGH_MASK 0
78 #define CHCR_TS_HIGH_SHIFT 0
80 /* Transmit sizes and respective CHCR register values */
89 /* log2(size / 8) - used to calculate number of transfers */
92 [XMIT_SZ_16BIT] = 1, \
93 [XMIT_SZ_32BIT] = 2, \
94 [XMIT_SZ_64BIT] = 3, \
95 [XMIT_SZ_256BIT] = 5, \
98 #define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT)
100 #endif /* CONFIG_CPU_SH4A */