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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2010-02-11 11:50:14 -0500
committerPaul Mundt <lethal@linux-sh.org>2010-03-01 21:09:04 -0500
commit8b1935e6a36b0967efc593d67ed3aebbfbc1f5b1 (patch)
tree811ebd670e9704790625137b4a824e548bded00b /arch/sh
parent027811b9b81a6b3ae5aa20c3302897bee9dcf09e (diff)
dmaengine: shdma: separate DMA headers.
Separate SH DMA headers into ones, commonly used by both drivers, and ones, specific to each of them. This will make the future development of the dmaengine driver easier. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/include/asm/dma-register.h51
-rw-r--r--arch/sh/include/asm/dma-sh.h95
-rw-r--r--arch/sh/include/asm/dmaengine.h73
-rw-r--r--arch/sh/include/asm/siu.h2
-rw-r--r--arch/sh/include/cpu-sh3/cpu/dma-register.h41
-rw-r--r--arch/sh/include/cpu-sh3/cpu/dma.h27
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma-register.h116
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma-sh4a.h62
-rw-r--r--arch/sh/include/cpu-sh4/cpu/dma.h36
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7722.c20
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7724.c21
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7780.c21
-rw-r--r--arch/sh/kernel/cpu/sh4a/setup-sh7785.c21
13 files changed, 361 insertions, 225 deletions
diff --git a/arch/sh/include/asm/dma-register.h b/arch/sh/include/asm/dma-register.h
new file mode 100644
index 000000000000..51cd78feacff
--- /dev/null
+++ b/arch/sh/include/asm/dma-register.h
@@ -0,0 +1,51 @@
1/*
2 * Common header for the legacy SH DMA driver and the new dmaengine driver
3 *
4 * extracted from arch/sh/include/asm/dma-sh.h:
5 *
6 * Copyright (C) 2000 Takashi YOSHII
7 * Copyright (C) 2003 Paul Mundt
8 *
9 * This file is subject to the terms and conditions of the GNU General Public
10 * License. See the file "COPYING" in the main directory of this archive
11 * for more details.
12 */
13#ifndef DMA_REGISTER_H
14#define DMA_REGISTER_H
15
16/* DMA register */
17#define SAR 0x00
18#define DAR 0x04
19#define TCR 0x08
20#define CHCR 0x0C
21#define DMAOR 0x40
22
23/* DMAOR definitions */
24#define DMAOR_AE 0x00000004
25#define DMAOR_NMIF 0x00000002
26#define DMAOR_DME 0x00000001
27
28/* Definitions for the SuperH DMAC */
29#define REQ_L 0x00000000
30#define REQ_E 0x00080000
31#define RACK_H 0x00000000
32#define RACK_L 0x00040000
33#define ACK_R 0x00000000
34#define ACK_W 0x00020000
35#define ACK_H 0x00000000
36#define ACK_L 0x00010000
37#define DM_INC 0x00004000
38#define DM_DEC 0x00008000
39#define DM_FIX 0x0000c000
40#define SM_INC 0x00001000
41#define SM_DEC 0x00002000
42#define SM_FIX 0x00003000
43#define RS_IN 0x00000200
44#define RS_OUT 0x00000300
45#define TS_BLK 0x00000040
46#define TM_BUR 0x00000020
47#define CHCR_DE 0x00000001
48#define CHCR_TE 0x00000002
49#define CHCR_IE 0x00000004
50
51#endif
diff --git a/arch/sh/include/asm/dma-sh.h b/arch/sh/include/asm/dma-sh.h
index 2e3631d6e273..f3acb8e34c6b 100644
--- a/arch/sh/include/asm/dma-sh.h
+++ b/arch/sh/include/asm/dma-sh.h
@@ -11,7 +11,8 @@
11#ifndef __DMA_SH_H 11#ifndef __DMA_SH_H
12#define __DMA_SH_H 12#define __DMA_SH_H
13 13
14#include <asm/dma.h> 14#include <asm/dma-register.h>
15#include <cpu/dma-register.h>
15#include <cpu/dma.h> 16#include <cpu/dma.h>
16 17
17/* DMAOR contorl: The DMAOR access size is different by CPU.*/ 18/* DMAOR contorl: The DMAOR access size is different by CPU.*/
@@ -53,34 +54,6 @@ static int dmte_irq_map[] __maybe_unused = {
53#endif 54#endif
54}; 55};
55 56
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
78
79/* DMAOR definitions */
80#define DMAOR_AE 0x00000004
81#define DMAOR_NMIF 0x00000002
82#define DMAOR_DME 0x00000001
83
84/* 57/*
85 * Define the default configuration for dual address memory-memory transfer. 58 * Define the default configuration for dual address memory-memory transfer.
86 * The 0x400 value represents auto-request, external->external. 59 * The 0x400 value represents auto-request, external->external.
@@ -111,68 +84,4 @@ static u32 dma_base_addr[] __maybe_unused = {
111#endif 84#endif
112}; 85};
113 86
114/* DMA register */
115#define SAR 0x00
116#define DAR 0x04
117#define TCR 0x08
118#define CHCR 0x0C
119#define DMAOR 0x40
120
121/*
122 * for dma engine
123 *
124 * SuperH DMA mode
125 */
126#define SHDMA_MIX_IRQ (1 << 1)
127#define SHDMA_DMAOR1 (1 << 2)
128#define SHDMA_DMAE1 (1 << 3)
129
130enum 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,
143 SHDMA_SLAVE_SIUA_TX,
144 SHDMA_SLAVE_SIUA_RX,
145 SHDMA_SLAVE_SIUB_TX,
146 SHDMA_SLAVE_SIUB_RX,
147 SHDMA_SLAVE_NUMBER, /* Must stay last */
148};
149
150struct sh_dmae_slave_config {
151 enum sh_dmae_slave_chan_id slave_id;
152 dma_addr_t addr;
153 u32 chcr;
154 char mid_rid;
155};
156
157struct sh_dmae_channel {
158 unsigned int offset;
159 unsigned int dmars;
160 unsigned int dmars_bit;
161};
162
163struct sh_dmae_pdata {
164 struct sh_dmae_slave_config *slave;
165 int slave_num;
166 struct sh_dmae_channel *channel;
167 int channel_num;
168};
169
170struct device;
171
172struct sh_dmae_slave {
173 enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
174 struct device *dma_dev; /* Set by the platform */
175 struct sh_dmae_slave_config *config; /* Set by the driver */
176};
177
178#endif /* __DMA_SH_H */ 87#endif /* __DMA_SH_H */
diff --git a/arch/sh/include/asm/dmaengine.h b/arch/sh/include/asm/dmaengine.h
new file mode 100644
index 000000000000..9586e4a482b1
--- /dev/null
+++ b/arch/sh/include/asm/dmaengine.h
@@ -0,0 +1,73 @@
1/*
2 * Header for the new SH dmaengine driver
3 *
4 * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 *
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.
9 */
10#ifndef ASM_DMAENGINE_H
11#define ASM_DMAENGINE_H
12
13#include <asm/dma-register.h>
14
15#define SH_DMAC_MAX_CHANNELS 6
16
17enum sh_dmae_slave_chan_id {
18 SHDMA_SLAVE_SCIF0_TX,
19 SHDMA_SLAVE_SCIF0_RX,
20 SHDMA_SLAVE_SCIF1_TX,
21 SHDMA_SLAVE_SCIF1_RX,
22 SHDMA_SLAVE_SCIF2_TX,
23 SHDMA_SLAVE_SCIF2_RX,
24 SHDMA_SLAVE_SCIF3_TX,
25 SHDMA_SLAVE_SCIF3_RX,
26 SHDMA_SLAVE_SCIF4_TX,
27 SHDMA_SLAVE_SCIF4_RX,
28 SHDMA_SLAVE_SCIF5_TX,
29 SHDMA_SLAVE_SCIF5_RX,
30 SHDMA_SLAVE_SIUA_TX,
31 SHDMA_SLAVE_SIUA_RX,
32 SHDMA_SLAVE_SIUB_TX,
33 SHDMA_SLAVE_SIUB_RX,
34 SHDMA_SLAVE_NUMBER, /* Must stay last */
35};
36
37struct sh_dmae_slave_config {
38 enum sh_dmae_slave_chan_id slave_id;
39 dma_addr_t addr;
40 u32 chcr;
41 char mid_rid;
42};
43
44struct sh_dmae_channel {
45 unsigned int offset;
46 unsigned int dmars;
47 unsigned int dmars_bit;
48};
49
50struct sh_dmae_pdata {
51 struct sh_dmae_slave_config *slave;
52 int slave_num;
53 struct sh_dmae_channel *channel;
54 int channel_num;
55 unsigned int ts_low_shift;
56 unsigned int ts_low_mask;
57 unsigned int ts_high_shift;
58 unsigned int ts_high_mask;
59 unsigned int *ts_shift;
60 int ts_shift_num;
61 u16 dmaor_init;
62};
63
64struct device;
65
66/* Used by slave DMA clients to request DMA to/from a specific peripheral */
67struct sh_dmae_slave {
68 enum sh_dmae_slave_chan_id slave_id; /* Set by the platform */
69 struct device *dma_dev; /* Set by the platform */
70 struct sh_dmae_slave_config *config; /* Set by the driver */
71};
72
73#endif
diff --git a/arch/sh/include/asm/siu.h b/arch/sh/include/asm/siu.h
index 57565a3b551f..f1b1e6944a5f 100644
--- a/arch/sh/include/asm/siu.h
+++ b/arch/sh/include/asm/siu.h
@@ -11,7 +11,7 @@
11#ifndef ASM_SIU_H 11#ifndef ASM_SIU_H
12#define ASM_SIU_H 12#define ASM_SIU_H
13 13
14#include <asm/dma-sh.h> 14#include <asm/dmaengine.h>
15 15
16struct device; 16struct device;
17 17
diff --git a/arch/sh/include/cpu-sh3/cpu/dma-register.h b/arch/sh/include/cpu-sh3/cpu/dma-register.h
new file mode 100644
index 000000000000..2349e488c9a6
--- /dev/null
+++ b/arch/sh/include/cpu-sh3/cpu/dma-register.h
@@ -0,0 +1,41 @@
1/*
2 * SH3 CPU-specific DMA definitions, used by both DMA drivers
3 *
4 * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 *
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.
9 */
10#ifndef CPU_DMA_REGISTER_H
11#define CPU_DMA_REGISTER_H
12
13#define CHCR_TS_LOW_MASK 0x18
14#define CHCR_TS_LOW_SHIFT 3
15#define CHCR_TS_HIGH_MASK 0
16#define CHCR_TS_HIGH_SHIFT 0
17
18#define DMAOR_INIT DMAOR_DME
19
20/*
21 * The SuperH DMAC supports a number of transmit sizes, we list them here,
22 * with their respective values as they appear in the CHCR registers.
23 */
24enum {
25 XMIT_SZ_8BIT,
26 XMIT_SZ_16BIT,
27 XMIT_SZ_32BIT,
28 XMIT_SZ_128BIT,
29};
30
31/* log2(size / 8) - used to calculate number of transfers */
32#define TS_SHIFT { \
33 [XMIT_SZ_8BIT] = 0, \
34 [XMIT_SZ_16BIT] = 1, \
35 [XMIT_SZ_32BIT] = 2, \
36 [XMIT_SZ_128BIT] = 4, \
37}
38
39#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT)
40
41#endif
diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h
index 207811a7a650..24e28b91c9d5 100644
--- a/arch/sh/include/cpu-sh3/cpu/dma.h
+++ b/arch/sh/include/cpu-sh3/cpu/dma.h
@@ -20,31 +20,4 @@
20#define TS_32 0x00000010 20#define TS_32 0x00000010
21#define TS_128 0x00000018 21#define TS_128 0x00000018
22 22
23#define CHCR_TS_LOW_MASK 0x18
24#define CHCR_TS_LOW_SHIFT 3
25#define CHCR_TS_HIGH_MASK 0
26#define CHCR_TS_HIGH_SHIFT 0
27
28#define DMAOR_INIT DMAOR_DME
29
30/*
31 * The SuperH DMAC supports a number of transmit sizes, we list them here,
32 * with their respective values as they appear in the CHCR registers.
33 */
34enum {
35 XMIT_SZ_8BIT,
36 XMIT_SZ_16BIT,
37 XMIT_SZ_32BIT,
38 XMIT_SZ_128BIT,
39};
40
41#define TS_SHIFT { \
42 [XMIT_SZ_8BIT] = 0, \
43 [XMIT_SZ_16BIT] = 1, \
44 [XMIT_SZ_32BIT] = 2, \
45 [XMIT_SZ_128BIT] = 4, \
46}
47
48#define TS_INDEX2VAL(i) (((i) & 3) << CHCR_TS_LOW_SHIFT)
49
50#endif /* __ASM_CPU_SH3_DMA_H */ 23#endif /* __ASM_CPU_SH3_DMA_H */
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-register.h b/arch/sh/include/cpu-sh4/cpu/dma-register.h
new file mode 100644
index 000000000000..008e7fc8f6c0
--- /dev/null
+++ b/arch/sh/include/cpu-sh4/cpu/dma-register.h
@@ -0,0 +1,116 @@
1/*
2 * SH4 CPU-specific DMA definitions, used by both DMA drivers
3 *
4 * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
5 *
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.
9 */
10#ifndef CPU_DMA_REGISTER_H
11#define CPU_DMA_REGISTER_H
12
13/* SH7751/7760/7780 DMA IRQ sources */
14
15#ifdef CONFIG_CPU_SH4A
16
17#define DMAOR_INIT DMAOR_DME
18
19#if defined(CONFIG_CPU_SUBTYPE_SH7343) || \
20 defined(CONFIG_CPU_SUBTYPE_SH7730)
21#define CHCR_TS_LOW_MASK 0x00000018
22#define CHCR_TS_LOW_SHIFT 3
23#define CHCR_TS_HIGH_MASK 0
24#define CHCR_TS_HIGH_SHIFT 0
25#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
26#define CHCR_TS_LOW_MASK 0x00000018
27#define CHCR_TS_LOW_SHIFT 3
28#define CHCR_TS_HIGH_MASK 0x00300000
29#define CHCR_TS_HIGH_SHIFT (20 - 2) /* 2 bits for shifted low TS */
30#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
31 defined(CONFIG_CPU_SUBTYPE_SH7764)
32#define CHCR_TS_LOW_MASK 0x00000018
33#define CHCR_TS_LOW_SHIFT 3
34#define CHCR_TS_HIGH_MASK 0
35#define CHCR_TS_HIGH_SHIFT 0
36#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
37#define CHCR_TS_LOW_MASK 0x00000018
38#define CHCR_TS_LOW_SHIFT 3
39#define CHCR_TS_HIGH_MASK 0
40#define CHCR_TS_HIGH_SHIFT 0
41#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
42#define CHCR_TS_LOW_MASK 0x00000018
43#define CHCR_TS_LOW_SHIFT 3
44#define CHCR_TS_HIGH_MASK 0x00600000
45#define CHCR_TS_HIGH_SHIFT (20 - 2) /* 2 bits for shifted low TS */
46#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
47#define CHCR_TS_LOW_MASK 0x00000018
48#define CHCR_TS_LOW_SHIFT 3
49#define CHCR_TS_HIGH_MASK 0
50#define CHCR_TS_HIGH_SHIFT 0
51#else /* SH7785 */
52#define CHCR_TS_LOW_MASK 0x00000018
53#define CHCR_TS_LOW_SHIFT 3
54#define CHCR_TS_HIGH_MASK 0
55#define CHCR_TS_HIGH_SHIFT 0
56#endif
57
58/* Transmit sizes and respective CHCR register values */
59enum {
60 XMIT_SZ_8BIT = 0,
61 XMIT_SZ_16BIT = 1,
62 XMIT_SZ_32BIT = 2,
63 XMIT_SZ_64BIT = 7,
64 XMIT_SZ_128BIT = 3,
65 XMIT_SZ_256BIT = 4,
66 XMIT_SZ_128BIT_BLK = 0xb,
67 XMIT_SZ_256BIT_BLK = 0xc,
68};
69
70/* log2(size / 8) - used to calculate number of transfers */
71#define TS_SHIFT { \
72 [XMIT_SZ_8BIT] = 0, \
73 [XMIT_SZ_16BIT] = 1, \
74 [XMIT_SZ_32BIT] = 2, \
75 [XMIT_SZ_64BIT] = 3, \
76 [XMIT_SZ_128BIT] = 4, \
77 [XMIT_SZ_256BIT] = 5, \
78 [XMIT_SZ_128BIT_BLK] = 4, \
79 [XMIT_SZ_256BIT_BLK] = 5, \
80}
81
82#define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \
83 ((((i) >> 2) & 3) << CHCR_TS_HIGH_SHIFT))
84
85#else /* CONFIG_CPU_SH4A */
86
87#define DMAOR_INIT (0x8000 | DMAOR_DME)
88
89#define CHCR_TS_LOW_MASK 0x70
90#define CHCR_TS_LOW_SHIFT 4
91#define CHCR_TS_HIGH_MASK 0
92#define CHCR_TS_HIGH_SHIFT 0
93
94/* Transmit sizes and respective CHCR register values */
95enum {
96 XMIT_SZ_8BIT = 1,
97 XMIT_SZ_16BIT = 2,
98 XMIT_SZ_32BIT = 3,
99 XMIT_SZ_64BIT = 0,
100 XMIT_SZ_256BIT = 4,
101};
102
103/* log2(size / 8) - used to calculate number of transfers */
104#define TS_SHIFT { \
105 [XMIT_SZ_8BIT] = 0, \
106 [XMIT_SZ_16BIT] = 1, \
107 [XMIT_SZ_32BIT] = 2, \
108 [XMIT_SZ_64BIT] = 3, \
109 [XMIT_SZ_256BIT] = 5, \
110}
111
112#define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT)
113
114#endif /* CONFIG_CPU_SH4A */
115
116#endif
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
index e734ea47d8a0..9647e681fd27 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma-sh4a.h
@@ -8,20 +8,12 @@
8#define DMAE0_IRQ 78 /* DMA Error IRQ*/ 8#define DMAE0_IRQ 78 /* DMA Error IRQ*/
9#define SH_DMAC_BASE0 0xFE008020 9#define SH_DMAC_BASE0 0xFE008020
10#define SH_DMARS_BASE0 0xFE009000 10#define SH_DMARS_BASE0 0xFE009000
11#define CHCR_TS_LOW_MASK 0x00000018
12#define CHCR_TS_LOW_SHIFT 3
13#define CHCR_TS_HIGH_MASK 0
14#define CHCR_TS_HIGH_SHIFT 0
15#elif defined(CONFIG_CPU_SUBTYPE_SH7722) 11#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
16#define DMTE0_IRQ 48 12#define DMTE0_IRQ 48
17#define DMTE4_IRQ 76 13#define DMTE4_IRQ 76
18#define DMAE0_IRQ 78 /* DMA Error IRQ*/ 14#define DMAE0_IRQ 78 /* DMA Error IRQ*/
19#define SH_DMAC_BASE0 0xFE008020 15#define SH_DMAC_BASE0 0xFE008020
20#define SH_DMARS_BASE0 0xFE009000 16#define SH_DMARS_BASE0 0xFE009000
21#define CHCR_TS_LOW_MASK 0x00000018
22#define CHCR_TS_LOW_SHIFT 3
23#define CHCR_TS_HIGH_MASK 0x00300000
24#define CHCR_TS_HIGH_SHIFT 20
25#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \ 17#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
26 defined(CONFIG_CPU_SUBTYPE_SH7764) 18 defined(CONFIG_CPU_SUBTYPE_SH7764)
27#define DMTE0_IRQ 34 19#define DMTE0_IRQ 34
@@ -29,10 +21,6 @@
29#define DMAE0_IRQ 38 21#define DMAE0_IRQ 38
30#define SH_DMAC_BASE0 0xFF608020 22#define SH_DMAC_BASE0 0xFF608020
31#define SH_DMARS_BASE0 0xFF609000 23#define SH_DMARS_BASE0 0xFF609000
32#define CHCR_TS_LOW_MASK 0x00000018
33#define CHCR_TS_LOW_SHIFT 3
34#define CHCR_TS_HIGH_MASK 0
35#define CHCR_TS_HIGH_SHIFT 0
36#elif defined(CONFIG_CPU_SUBTYPE_SH7723) 24#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
37#define DMTE0_IRQ 48 /* DMAC0A*/ 25#define DMTE0_IRQ 48 /* DMAC0A*/
38#define DMTE4_IRQ 76 /* DMAC0B */ 26#define DMTE4_IRQ 76 /* DMAC0B */
@@ -46,10 +34,6 @@
46#define SH_DMAC_BASE0 0xFE008020 34#define SH_DMAC_BASE0 0xFE008020
47#define SH_DMAC_BASE1 0xFDC08020 35#define SH_DMAC_BASE1 0xFDC08020
48#define SH_DMARS_BASE0 0xFDC09000 36#define SH_DMARS_BASE0 0xFDC09000
49#define CHCR_TS_LOW_MASK 0x00000018
50#define CHCR_TS_LOW_SHIFT 3
51#define CHCR_TS_HIGH_MASK 0
52#define CHCR_TS_HIGH_SHIFT 0
53#elif defined(CONFIG_CPU_SUBTYPE_SH7724) 37#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
54#define DMTE0_IRQ 48 /* DMAC0A*/ 38#define DMTE0_IRQ 48 /* DMAC0A*/
55#define DMTE4_IRQ 76 /* DMAC0B */ 39#define DMTE4_IRQ 76 /* DMAC0B */
@@ -64,10 +48,6 @@
64#define SH_DMAC_BASE1 0xFDC08020 48#define SH_DMAC_BASE1 0xFDC08020
65#define SH_DMARS_BASE0 0xFE009000 49#define SH_DMARS_BASE0 0xFE009000
66#define SH_DMARS_BASE1 0xFDC09000 50#define SH_DMARS_BASE1 0xFDC09000
67#define CHCR_TS_LOW_MASK 0x00000018
68#define CHCR_TS_LOW_SHIFT 3
69#define CHCR_TS_HIGH_MASK 0x00600000
70#define CHCR_TS_HIGH_SHIFT 21
71#elif defined(CONFIG_CPU_SUBTYPE_SH7780) 51#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
72#define DMTE0_IRQ 34 52#define DMTE0_IRQ 34
73#define DMTE4_IRQ 44 53#define DMTE4_IRQ 44
@@ -80,10 +60,6 @@
80#define SH_DMAC_BASE0 0xFC808020 60#define SH_DMAC_BASE0 0xFC808020
81#define SH_DMAC_BASE1 0xFC818020 61#define SH_DMAC_BASE1 0xFC818020
82#define SH_DMARS_BASE0 0xFC809000 62#define SH_DMARS_BASE0 0xFC809000
83#define CHCR_TS_LOW_MASK 0x00000018
84#define CHCR_TS_LOW_SHIFT 3
85#define CHCR_TS_HIGH_MASK 0
86#define CHCR_TS_HIGH_SHIFT 0
87#else /* SH7785 */ 63#else /* SH7785 */
88#define DMTE0_IRQ 33 64#define DMTE0_IRQ 33
89#define DMTE4_IRQ 37 65#define DMTE4_IRQ 37
@@ -97,10 +73,6 @@
97#define SH_DMAC_BASE0 0xFC808020 73#define SH_DMAC_BASE0 0xFC808020
98#define SH_DMAC_BASE1 0xFCC08020 74#define SH_DMAC_BASE1 0xFCC08020
99#define SH_DMARS_BASE0 0xFC809000 75#define SH_DMARS_BASE0 0xFC809000
100#define CHCR_TS_LOW_MASK 0x00000018
101#define CHCR_TS_LOW_SHIFT 3
102#define CHCR_TS_HIGH_MASK 0
103#define CHCR_TS_HIGH_SHIFT 0
104#endif 76#endif
105 77
106#define REQ_HE 0x000000C0 78#define REQ_HE 0x000000C0
@@ -108,38 +80,4 @@
108#define REQ_LE 0x00000040 80#define REQ_LE 0x00000040
109#define TM_BURST 0x00000020 81#define TM_BURST 0x00000020
110 82
111/*
112 * The SuperH DMAC supports a number of transmit sizes, we list them here,
113 * with their respective values as they appear in the CHCR registers.
114 *
115 * Defaults to a 64-bit transfer size.
116 */
117enum {
118 XMIT_SZ_8BIT = 0,
119 XMIT_SZ_16BIT = 1,
120 XMIT_SZ_32BIT = 2,
121 XMIT_SZ_64BIT = 7,
122 XMIT_SZ_128BIT = 3,
123 XMIT_SZ_256BIT = 4,
124 XMIT_SZ_128BIT_BLK = 0xb,
125 XMIT_SZ_256BIT_BLK = 0xc,
126};
127
128/*
129 * The DMA count is defined as the number of bytes to transfer.
130 */
131#define TS_SHIFT { \
132 [XMIT_SZ_8BIT] = 0, \
133 [XMIT_SZ_16BIT] = 1, \
134 [XMIT_SZ_32BIT] = 2, \
135 [XMIT_SZ_64BIT] = 3, \
136 [XMIT_SZ_128BIT] = 4, \
137 [XMIT_SZ_256BIT] = 5, \
138 [XMIT_SZ_128BIT_BLK] = 4, \
139 [XMIT_SZ_256BIT_BLK] = 5, \
140}
141
142#define TS_INDEX2VAL(i) ((((i) & 3) << CHCR_TS_LOW_SHIFT) | \
143 ((((i) >> 2) & 3) << CHCR_TS_HIGH_SHIFT))
144
145#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */ 83#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */
diff --git a/arch/sh/include/cpu-sh4/cpu/dma.h b/arch/sh/include/cpu-sh4/cpu/dma.h
index 114a369705bc..ca747e93c2ed 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma.h
@@ -5,9 +5,8 @@
5 5
6#ifdef CONFIG_CPU_SH4A 6#ifdef CONFIG_CPU_SH4A
7 7
8#define DMAOR_INIT (DMAOR_DME)
9
10#include <cpu/dma-sh4a.h> 8#include <cpu/dma-sh4a.h>
9
11#else /* CONFIG_CPU_SH4A */ 10#else /* CONFIG_CPU_SH4A */
12/* 11/*
13 * SH7750/SH7751/SH7760 12 * SH7750/SH7751/SH7760
@@ -17,7 +16,6 @@
17#define DMTE6_IRQ 46 16#define DMTE6_IRQ 46
18#define DMAE0_IRQ 38 17#define DMAE0_IRQ 38
19 18
20#define DMAOR_INIT (0x8000|DMAOR_DME)
21#define SH_DMAC_BASE0 0xffa00000 19#define SH_DMAC_BASE0 0xffa00000
22#define SH_DMAC_BASE1 0xffa00070 20#define SH_DMAC_BASE1 0xffa00070
23/* Definitions for the SuperH DMAC */ 21/* Definitions for the SuperH DMAC */
@@ -27,40 +25,8 @@
27#define TS_32 0x00000030 25#define TS_32 0x00000030
28#define TS_64 0x00000000 26#define TS_64 0x00000000
29 27
30#define CHCR_TS_LOW_MASK 0x70
31#define CHCR_TS_LOW_SHIFT 4
32#define CHCR_TS_HIGH_MASK 0
33#define CHCR_TS_HIGH_SHIFT 0
34
35#define DMAOR_COD 0x00000008 28#define DMAOR_COD 0x00000008
36 29
37/*
38 * The SuperH DMAC supports a number of transmit sizes, we list them here,
39 * with their respective values as they appear in the CHCR registers.
40 *
41 * Defaults to a 64-bit transfer size.
42 */
43enum {
44 XMIT_SZ_8BIT = 1,
45 XMIT_SZ_16BIT = 2,
46 XMIT_SZ_32BIT = 3,
47 XMIT_SZ_64BIT = 0,
48 XMIT_SZ_256BIT = 4,
49};
50
51/*
52 * The DMA count is defined as the number of bytes to transfer.
53 */
54#define TS_SHIFT { \
55 [XMIT_SZ_8BIT] = 0, \
56 [XMIT_SZ_16BIT] = 1, \
57 [XMIT_SZ_32BIT] = 2, \
58 [XMIT_SZ_64BIT] = 3, \
59 [XMIT_SZ_256BIT] = 5, \
60}
61
62#define TS_INDEX2VAL(i) (((i) & 7) << CHCR_TS_LOW_SHIFT)
63
64#endif 30#endif
65 31
66#endif /* __ASM_CPU_SH4_DMA_H */ 32#endif /* __ASM_CPU_SH4_DMA_H */
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
index aec182bed8a1..89f84911c356 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7722.c
@@ -7,18 +7,21 @@
7 * License. See the file "COPYING" in the main directory of this archive 7 * License. See the file "COPYING" in the main directory of this archive
8 * for more details. 8 * for more details.
9 */ 9 */
10#include <linux/platform_device.h>
11#include <linux/init.h> 10#include <linux/init.h>
11#include <linux/mm.h>
12#include <linux/platform_device.h>
12#include <linux/serial.h> 13#include <linux/serial.h>
13#include <linux/serial_sci.h> 14#include <linux/serial_sci.h>
14#include <linux/mm.h> 15#include <linux/sh_timer.h>
15#include <linux/uio_driver.h> 16#include <linux/uio_driver.h>
16#include <linux/usb/m66592.h> 17#include <linux/usb/m66592.h>
17#include <linux/sh_timer.h> 18
18#include <asm/clock.h> 19#include <asm/clock.h>
20#include <asm/dmaengine.h>
19#include <asm/mmzone.h> 21#include <asm/mmzone.h>
20#include <asm/dma-sh.h>
21#include <asm/siu.h> 22#include <asm/siu.h>
23
24#include <cpu/dma-register.h>
22#include <cpu/sh7722.h> 25#include <cpu/sh7722.h>
23 26
24static struct sh_dmae_slave_config sh7722_dmae_slaves[] = { 27static struct sh_dmae_slave_config sh7722_dmae_slaves[] = {
@@ -103,11 +106,20 @@ static struct sh_dmae_channel sh7722_dmae_channels[] = {
103 } 106 }
104}; 107};
105 108
109static unsigned int ts_shift[] = TS_SHIFT;
110
106static struct sh_dmae_pdata dma_platform_data = { 111static struct sh_dmae_pdata dma_platform_data = {
107 .slave = sh7722_dmae_slaves, 112 .slave = sh7722_dmae_slaves,
108 .slave_num = ARRAY_SIZE(sh7722_dmae_slaves), 113 .slave_num = ARRAY_SIZE(sh7722_dmae_slaves),
109 .channel = sh7722_dmae_channels, 114 .channel = sh7722_dmae_channels,
110 .channel_num = ARRAY_SIZE(sh7722_dmae_channels), 115 .channel_num = ARRAY_SIZE(sh7722_dmae_channels),
116 .ts_low_shift = CHCR_TS_LOW_SHIFT,
117 .ts_low_mask = CHCR_TS_LOW_MASK,
118 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
119 .ts_high_mask = CHCR_TS_HIGH_MASK,
120 .ts_shift = ts_shift,
121 .ts_shift_num = ARRAY_SIZE(ts_shift),
122 .dmaor_init = DMAOR_INIT,
111}; 123};
112 124
113static struct resource sh7722_dmae_resources[] = { 125static struct resource sh7722_dmae_resources[] = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
index aca1fb2c571b..d9cb2c471a31 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7724.c
@@ -21,10 +21,13 @@
21#include <linux/sh_timer.h> 21#include <linux/sh_timer.h>
22#include <linux/io.h> 22#include <linux/io.h>
23#include <linux/notifier.h> 23#include <linux/notifier.h>
24
24#include <asm/suspend.h> 25#include <asm/suspend.h>
25#include <asm/clock.h> 26#include <asm/clock.h>
26#include <asm/dma-sh.h> 27#include <asm/dmaengine.h>
27#include <asm/mmzone.h> 28#include <asm/mmzone.h>
29
30#include <cpu/dma-register.h>
28#include <cpu/sh7724.h> 31#include <cpu/sh7724.h>
29 32
30/* DMA */ 33/* DMA */
@@ -84,14 +87,30 @@ static struct sh_dmae_channel sh7724_dmae1_channels[] = {
84 } 87 }
85}; 88};
86 89
90static unsigned int ts_shift[] = TS_SHIFT;
91
87static struct sh_dmae_pdata dma0_platform_data = { 92static struct sh_dmae_pdata dma0_platform_data = {
88 .channel = sh7724_dmae0_channels, 93 .channel = sh7724_dmae0_channels,
89 .channel_num = ARRAY_SIZE(sh7724_dmae0_channels), 94 .channel_num = ARRAY_SIZE(sh7724_dmae0_channels),
95 .ts_low_shift = CHCR_TS_LOW_SHIFT,
96 .ts_low_mask = CHCR_TS_LOW_MASK,
97 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
98 .ts_high_mask = CHCR_TS_HIGH_MASK,
99 .ts_shift = ts_shift,
100 .ts_shift_num = ARRAY_SIZE(ts_shift),
101 .dmaor_init = DMAOR_INIT,
90}; 102};
91 103
92static struct sh_dmae_pdata dma1_platform_data = { 104static struct sh_dmae_pdata dma1_platform_data = {
93 .channel = sh7724_dmae1_channels, 105 .channel = sh7724_dmae1_channels,
94 .channel_num = ARRAY_SIZE(sh7724_dmae1_channels), 106 .channel_num = ARRAY_SIZE(sh7724_dmae1_channels),
107 .ts_low_shift = CHCR_TS_LOW_SHIFT,
108 .ts_low_mask = CHCR_TS_LOW_MASK,
109 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
110 .ts_high_mask = CHCR_TS_HIGH_MASK,
111 .ts_shift = ts_shift,
112 .ts_shift_num = ARRAY_SIZE(ts_shift),
113 .dmaor_init = DMAOR_INIT,
95}; 114};
96 115
97/* Resource order important! */ 116/* Resource order important! */
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
index 338dfc2c2bb5..02e792c90de6 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7780.c
@@ -13,7 +13,10 @@
13#include <linux/io.h> 13#include <linux/io.h>
14#include <linux/serial_sci.h> 14#include <linux/serial_sci.h>
15#include <linux/sh_timer.h> 15#include <linux/sh_timer.h>
16#include <asm/dma-sh.h> 16
17#include <asm/dmaengine.h>
18
19#include <cpu/dma-register.h>
17 20
18static struct plat_sci_port scif0_platform_data = { 21static struct plat_sci_port scif0_platform_data = {
19 .mapbase = 0xffe00000, 22 .mapbase = 0xffe00000,
@@ -292,14 +295,30 @@ static struct sh_dmae_channel sh7780_dmae1_channels[] = {
292 } 295 }
293}; 296};
294 297
298static unsigned int ts_shift[] = TS_SHIFT;
299
295static struct sh_dmae_pdata dma0_platform_data = { 300static struct sh_dmae_pdata dma0_platform_data = {
296 .channel = sh7780_dmae0_channels, 301 .channel = sh7780_dmae0_channels,
297 .channel_num = ARRAY_SIZE(sh7780_dmae0_channels), 302 .channel_num = ARRAY_SIZE(sh7780_dmae0_channels),
303 .ts_low_shift = CHCR_TS_LOW_SHIFT,
304 .ts_low_mask = CHCR_TS_LOW_MASK,
305 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
306 .ts_high_mask = CHCR_TS_HIGH_MASK,
307 .ts_shift = ts_shift,
308 .ts_shift_num = ARRAY_SIZE(ts_shift),
309 .dmaor_init = DMAOR_INIT,
298}; 310};
299 311
300static struct sh_dmae_pdata dma1_platform_data = { 312static struct sh_dmae_pdata dma1_platform_data = {
301 .channel = sh7780_dmae1_channels, 313 .channel = sh7780_dmae1_channels,
302 .channel_num = ARRAY_SIZE(sh7780_dmae1_channels), 314 .channel_num = ARRAY_SIZE(sh7780_dmae1_channels),
315 .ts_low_shift = CHCR_TS_LOW_SHIFT,
316 .ts_low_mask = CHCR_TS_LOW_MASK,
317 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
318 .ts_high_mask = CHCR_TS_HIGH_MASK,
319 .ts_shift = ts_shift,
320 .ts_shift_num = ARRAY_SIZE(ts_shift),
321 .dmaor_init = DMAOR_INIT,
303}; 322};
304 323
305static struct resource sh7780_dmae0_resources[] = { 324static struct resource sh7780_dmae0_resources[] = {
diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
index fbb5d1f51f1a..1fcd88b1671e 100644
--- a/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
+++ b/arch/sh/kernel/cpu/sh4a/setup-sh7785.c
@@ -14,9 +14,12 @@
14#include <linux/io.h> 14#include <linux/io.h>
15#include <linux/mm.h> 15#include <linux/mm.h>
16#include <linux/sh_timer.h> 16#include <linux/sh_timer.h>
17#include <asm/dma-sh.h> 17
18#include <asm/dmaengine.h>
18#include <asm/mmzone.h> 19#include <asm/mmzone.h>
19 20
21#include <cpu/dma-register.h>
22
20static struct plat_sci_port scif0_platform_data = { 23static struct plat_sci_port scif0_platform_data = {
21 .mapbase = 0xffea0000, 24 .mapbase = 0xffea0000,
22 .flags = UPF_BOOT_AUTOCONF, 25 .flags = UPF_BOOT_AUTOCONF,
@@ -340,14 +343,30 @@ static struct sh_dmae_channel sh7785_dmae1_channels[] = {
340 } 343 }
341}; 344};
342 345
346static unsigned int ts_shift[] = TS_SHIFT;
347
343static struct sh_dmae_pdata dma0_platform_data = { 348static struct sh_dmae_pdata dma0_platform_data = {
344 .channel = sh7785_dmae0_channels, 349 .channel = sh7785_dmae0_channels,
345 .channel_num = ARRAY_SIZE(sh7785_dmae0_channels), 350 .channel_num = ARRAY_SIZE(sh7785_dmae0_channels),
351 .ts_low_shift = CHCR_TS_LOW_SHIFT,
352 .ts_low_mask = CHCR_TS_LOW_MASK,
353 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
354 .ts_high_mask = CHCR_TS_HIGH_MASK,
355 .ts_shift = ts_shift,
356 .ts_shift_num = ARRAY_SIZE(ts_shift),
357 .dmaor_init = DMAOR_INIT,
346}; 358};
347 359
348static struct sh_dmae_pdata dma1_platform_data = { 360static struct sh_dmae_pdata dma1_platform_data = {
349 .channel = sh7785_dmae1_channels, 361 .channel = sh7785_dmae1_channels,
350 .channel_num = ARRAY_SIZE(sh7785_dmae1_channels), 362 .channel_num = ARRAY_SIZE(sh7785_dmae1_channels),
363 .ts_low_shift = CHCR_TS_LOW_SHIFT,
364 .ts_low_mask = CHCR_TS_LOW_MASK,
365 .ts_high_shift = CHCR_TS_HIGH_SHIFT,
366 .ts_high_mask = CHCR_TS_HIGH_MASK,
367 .ts_shift = ts_shift,
368 .ts_shift_num = ARRAY_SIZE(ts_shift),
369 .dmaor_init = DMAOR_INIT,
351}; 370};
352 371
353static struct resource sh7785_dmae0_resources[] = { 372static struct resource sh7785_dmae0_resources[] = {
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 15:44:33 -0500