2 * arch/sh/include/asm/dma-sh.h
4 * Copyright (C) 2000 Takashi YOSHII
5 * Copyright (C) 2003 Paul Mundt
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
17 /* DMAOR contorl: The DMAOR access size is different by CPU.*/
18 #if defined(CONFIG_CPU_SUBTYPE_SH7723) || \
19 defined(CONFIG_CPU_SUBTYPE_SH7724) || \
20 defined(CONFIG_CPU_SUBTYPE_SH7780) || \
21 defined(CONFIG_CPU_SUBTYPE_SH7785)
22 #define dmaor_read_reg(n) \
23 (n ? __raw_readw(SH_DMAC_BASE1 + DMAOR) \
24 : __raw_readw(SH_DMAC_BASE0 + DMAOR))
25 #define dmaor_write_reg(n, data) \
26 (n ? __raw_writew(data, SH_DMAC_BASE1 + DMAOR) \
27 : __raw_writew(data, SH_DMAC_BASE0 + DMAOR))
29 #define dmaor_read_reg(n) __raw_readw(SH_DMAC_BASE0 + DMAOR)
30 #define dmaor_write_reg(n, data) __raw_writew(data, SH_DMAC_BASE0 + DMAOR)
33 static int dmte_irq_map[] __maybe_unused = {
34 #if (MAX_DMA_CHANNELS >= 4)
40 #if (MAX_DMA_CHANNELS >= 6)
44 #if (MAX_DMA_CHANNELS >= 8)
48 #if (MAX_DMA_CHANNELS >= 12)
56 /* Definitions for the SuperH DMAC */
57 #define REQ_L 0x00000000
58 #define REQ_E 0x00080000
59 #define RACK_H 0x00000000
60 #define RACK_L 0x00040000
61 #define ACK_R 0x00000000
62 #define ACK_W 0x00020000
63 #define ACK_H 0x00000000
64 #define ACK_L 0x00010000
65 #define DM_INC 0x00004000
66 #define DM_DEC 0x00008000
67 #define DM_FIX 0x0000c000
68 #define SM_INC 0x00001000
69 #define SM_DEC 0x00002000
70 #define SM_FIX 0x00003000
71 #define RS_IN 0x00000200
72 #define RS_OUT 0x00000300
73 #define TS_BLK 0x00000040
74 #define TM_BUR 0x00000020
75 #define CHCR_DE 0x00000001
76 #define CHCR_TE 0x00000002
77 #define CHCR_IE 0x00000004
79 /* DMAOR definitions */
80 #define DMAOR_AE 0x00000004
81 #define DMAOR_NMIF 0x00000002
82 #define DMAOR_DME 0x00000001
85 * Define the default configuration for dual address memory-memory transfer.
86 * The 0x400 value represents auto-request, external->external.
88 #define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_INDEX2VAL(XMIT_SZ_32BIT))
90 /* DMA base address */
91 static u32 dma_base_addr[] __maybe_unused = {
92 #if (MAX_DMA_CHANNELS >= 4)
93 SH_DMAC_BASE0 + 0x00, /* channel 0 */
98 #if (MAX_DMA_CHANNELS >= 6)
100 SH_DMAC_BASE0 + 0x60,
102 #if (MAX_DMA_CHANNELS >= 8)
103 SH_DMAC_BASE1 + 0x00,
104 SH_DMAC_BASE1 + 0x10,
106 #if (MAX_DMA_CHANNELS >= 12)
107 SH_DMAC_BASE1 + 0x20,
108 SH_DMAC_BASE1 + 0x30,
109 SH_DMAC_BASE1 + 0x50,
110 SH_DMAC_BASE1 + 0x60, /* channel 11 */
126 #define SHDMA_MIX_IRQ (1 << 1)
127 #define SHDMA_DMAOR1 (1 << 2)
128 #define SHDMA_DMAE1 (1 << 3)
130 enum sh_dmae_slave_chan_id {
131 SHDMA_SLAVE_SCIF0_TX,
132 SHDMA_SLAVE_SCIF0_RX,
133 SHDMA_SLAVE_SCIF1_TX,
134 SHDMA_SLAVE_SCIF1_RX,
135 SHDMA_SLAVE_SCIF2_TX,
136 SHDMA_SLAVE_SCIF2_RX,
137 SHDMA_SLAVE_SCIF3_TX,
138 SHDMA_SLAVE_SCIF3_RX,
139 SHDMA_SLAVE_SCIF4_TX,
140 SHDMA_SLAVE_SCIF4_RX,
141 SHDMA_SLAVE_SCIF5_TX,
142 SHDMA_SLAVE_SCIF5_RX,
147 SHDMA_SLAVE_NUMBER, /* Must stay last */
150 struct sh_dmae_slave_config {
151 enum sh_dmae_slave_chan_id slave_id;
157 struct sh_dmae_pdata {
159 struct sh_dmae_slave_config *config;
165 struct sh_dmae_slave {
166 enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
167 struct device *dma_dev; /* Set by the platform */
168 struct sh_dmae_slave_config *config; /* Set by the driver */
171 #endif /* __DMA_SH_H */