summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s5p64x0/dma.c
blob: 0e5b3e63e5b3f388382dc54cb68b31e05677b8f4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
/* linux/arch/arm/mach-s5p64x0/dma.c
 *
 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com
 *
 * Copyright (C) 2010 Samsung Electronics Co. Ltd.
 *	Jaswinder Singh <jassi.brar@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <linux/platform_device.h>
#include <linux/dma-mapping.h>

#include <mach/map.h>
#include <mach/irqs.h>
#include <mach/regs-clock.h>

#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/s3c-pl330-pdata.h>

static u64 dma_dmamask = DMA_BIT_MASK(32);

static struct resource s5p64x0_pdma_resource[] = {
	[0] = {
		.start	= S5P64X0_PA_PDMA,
		.end	= S5P64X0_PA_PDMA + SZ_4K,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= IRQ_DMA0,
		.end	= IRQ_DMA0,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct s3c_pl330_platdata s5p6440_pdma_pdata = {
	.peri = {
		[0] = DMACH_UART0_RX,
		[1] = DMACH_UART0_TX,
		[2] = DMACH_UART1_RX,
		[3] = DMACH_UART1_TX,
		[4] = DMACH_UART2_RX,
		[5] = DMACH_UART2_TX,
		[6] = DMACH_UART3_RX,
		[7] = DMACH_UART3_TX,
		[8] = DMACH_MAX,
		[9] = DMACH_MAX,
		[10] = DMACH_PCM0_TX,
		[11] = DMACH_PCM0_RX,
		[12] = DMACH_I2S0_TX,
		[13] = DMACH_I2S0_RX,
		[14] = DMACH_SPI0_TX,
		[15] = DMACH_SPI0_RX,
		[16] = DMACH_MAX,
		[17] = DMACH_MAX,
		[18] = DMACH_MAX,
		[19] = DMACH_MAX,
		[20] = DMACH_SPI1_TX,
		[21] = DMACH_SPI1_RX,
		[22] = DMACH_MAX,
		[23] = DMACH_MAX,
		[24] = DMACH_MAX,
		[25] = DMACH_MAX,
		[26] = DMACH_MAX,
		[27] = DMACH_MAX,
		[28] = DMACH_MAX,
		[29] = DMACH_PWM,
		[30] = DMACH_MAX,
		[31] = DMACH_MAX,
	},
};

static struct s3c_pl330_platdata s5p6450_pdma_pdata = {
	.peri = {
		[0] = DMACH_UART0_RX,
		[1] = DMACH_UART0_TX,
		[2] = DMACH_UART1_RX,
		[3] = DMACH_UART1_TX,
		[4] = DMACH_UART2_RX,
		[5] = DMACH_UART2_TX,
		[6] = DMACH_UART3_RX,
		[7] = DMACH_UART3_TX,
		[8] = DMACH_UART4_RX,
		[9] = DMACH_UART4_TX,
		[10] = DMACH_PCM0_TX,
		[11] = DMACH_PCM0_RX,
		[12] = DMACH_I2S0_TX,
		[13] = DMACH_I2S0_RX,
		[14] = DMACH_SPI0_TX,
		[15] = DMACH_SPI0_RX,
		[16] = DMACH_PCM1_TX,
		[17] = DMACH_PCM1_RX,
		[18] = DMACH_PCM2_TX,
		[19] = DMACH_PCM2_RX,
		[20] = DMACH_SPI1_TX,
		[21] = DMACH_SPI1_RX,
		[22] = DMACH_USI_TX,
		[23] = DMACH_USI_RX,
		[24] = DMACH_MAX,
		[25] = DMACH_I2S1_TX,
		[26] = DMACH_I2S1_RX,
		[27] = DMACH_I2S2_TX,
		[28] = DMACH_I2S2_RX,
		[29] = DMACH_PWM,
		[30] = DMACH_UART5_RX,
		[31] = DMACH_UART5_TX,
	},
};

static struct platform_device s5p64x0_device_pdma = {
	.name		= "s3c-pl330",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(s5p64x0_pdma_resource),
	.resource	= s5p64x0_pdma_resource,
	.dev		= {
		.dma_mask = &dma_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
	},
};

static int __init s5p64x0_dma_init(void)
{
	if (soc_is_s5p6450())
		s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
	else
		s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;

	platform_device_register(&s5p64x0_device_pdma);

	return 0;
}
arch_initcall(s5p64x0_dma_init);
OpenPOWER on IntegriCloud