]> bbs.cooldavid.org Git - net-next-2.6.git/blame - arch/arm/mach-ux500/devices-db8500.c
DMAENGINE: DMA40 U8500 platform configuration
[net-next-2.6.git] / arch / arm / mach-ux500 / devices-db8500.c
CommitLineData
9e4e7fe1
RV
1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
5 * License terms: GNU General Public License (GPL) version 2
6 */
7
8#include <linux/kernel.h>
9#include <linux/platform_device.h>
10#include <linux/interrupt.h>
11#include <linux/io.h>
5b1f7ddf 12#include <linux/gpio.h>
9e4e7fe1
RV
13#include <linux/amba/bus.h>
14
7b8ddb06
LW
15#include <plat/ste_dma40.h>
16
9e4e7fe1
RV
17#include <mach/hardware.h>
18#include <mach/setup.h>
19
7b8ddb06
LW
20#include "ste-dma40-db8500.h"
21
5b1f7ddf
RV
22static struct nmk_gpio_platform_data u8500_gpio_data[] = {
23 GPIO_DATA("GPIO-0-31", 0),
24 GPIO_DATA("GPIO-32-63", 32), /* 37..63 not routed to pin */
25 GPIO_DATA("GPIO-64-95", 64),
26 GPIO_DATA("GPIO-96-127", 96), /* 98..127 not routed to pin */
27 GPIO_DATA("GPIO-128-159", 128),
28 GPIO_DATA("GPIO-160-191", 160), /* 172..191 not routed to pin */
29 GPIO_DATA("GPIO-192-223", 192),
30 GPIO_DATA("GPIO-224-255", 224), /* 231..255 not routed to pin */
31 GPIO_DATA("GPIO-256-288", 256), /* 268..288 not routed to pin */
32};
33
34static struct resource u8500_gpio_resources[] = {
35 GPIO_RESOURCE(0),
36 GPIO_RESOURCE(1),
37 GPIO_RESOURCE(2),
38 GPIO_RESOURCE(3),
39 GPIO_RESOURCE(4),
40 GPIO_RESOURCE(5),
41 GPIO_RESOURCE(6),
42 GPIO_RESOURCE(7),
43 GPIO_RESOURCE(8),
44};
45
46struct platform_device u8500_gpio_devs[] = {
47 GPIO_DEVICE(0),
48 GPIO_DEVICE(1),
49 GPIO_DEVICE(2),
50 GPIO_DEVICE(3),
51 GPIO_DEVICE(4),
52 GPIO_DEVICE(5),
53 GPIO_DEVICE(6),
54 GPIO_DEVICE(7),
55 GPIO_DEVICE(8),
56};
57
9e4e7fe1
RV
58struct amba_device u8500_ssp0_device = {
59 .dev = {
60 .coherent_dma_mask = ~0,
61 .init_name = "ssp0",
62 },
63 .res = {
64 .start = U8500_SSP0_BASE,
65 .end = U8500_SSP0_BASE + SZ_4K - 1,
66 .flags = IORESOURCE_MEM,
67 },
68 .irq = {IRQ_SSP0, NO_IRQ },
69 /* ST-Ericsson modified id */
70 .periphid = SSP_PER_ID,
71};
f9faf237
RV
72
73static struct resource u8500_i2c0_resources[] = {
74 [0] = {
75 .start = U8500_I2C0_BASE,
76 .end = U8500_I2C0_BASE + SZ_4K - 1,
77 .flags = IORESOURCE_MEM,
78 },
79 [1] = {
80 .start = IRQ_I2C0,
81 .end = IRQ_I2C0,
82 .flags = IORESOURCE_IRQ,
83 }
84};
85
86struct platform_device u8500_i2c0_device = {
87 .name = "nmk-i2c",
88 .id = 0,
89 .resource = u8500_i2c0_resources,
90 .num_resources = ARRAY_SIZE(u8500_i2c0_resources),
91};
92
93static struct resource u8500_i2c4_resources[] = {
94 [0] = {
95 .start = U8500_I2C4_BASE,
96 .end = U8500_I2C4_BASE + SZ_4K - 1,
97 .flags = IORESOURCE_MEM,
98 },
99 [1] = {
100 .start = IRQ_I2C4,
101 .end = IRQ_I2C4,
102 .flags = IORESOURCE_IRQ,
103 }
104};
105
106struct platform_device u8500_i2c4_device = {
107 .name = "nmk-i2c",
108 .id = 4,
109 .resource = u8500_i2c4_resources,
110 .num_resources = ARRAY_SIZE(u8500_i2c4_resources),
111};
7b8ddb06
LW
112
113static struct resource dma40_resources[] = {
114 [0] = {
115 .start = U8500_DMA_BASE,
116 .end = U8500_DMA_BASE + SZ_4K - 1,
117 .flags = IORESOURCE_MEM,
118 .name = "base",
119 },
120 [1] = {
121 .start = U8500_DMA_LCPA_BASE,
122 .end = U8500_DMA_LCPA_BASE + SZ_4K - 1,
123 .flags = IORESOURCE_MEM,
124 .name = "lcpa",
125 },
126 [2] = {
127 .start = U8500_DMA_LCLA_BASE,
128 .end = U8500_DMA_LCLA_BASE + 16 * 1024 - 1,
129 .flags = IORESOURCE_MEM,
130 .name = "lcla",
131 },
132 [3] = {
133 .start = IRQ_DMA,
134 .end = IRQ_DMA,
135 .flags = IORESOURCE_IRQ}
136};
137
138/* Default configuration for physcial memcpy */
139struct stedma40_chan_cfg dma40_memcpy_conf_phy = {
140 .channel_type = (STEDMA40_CHANNEL_IN_PHY_MODE |
141 STEDMA40_LOW_PRIORITY_CHANNEL |
142 STEDMA40_PCHAN_BASIC_MODE),
143 .dir = STEDMA40_MEM_TO_MEM,
144
145 .src_info.endianess = STEDMA40_LITTLE_ENDIAN,
146 .src_info.data_width = STEDMA40_BYTE_WIDTH,
147 .src_info.psize = STEDMA40_PSIZE_PHY_1,
148
149 .dst_info.endianess = STEDMA40_LITTLE_ENDIAN,
150 .dst_info.data_width = STEDMA40_BYTE_WIDTH,
151 .dst_info.psize = STEDMA40_PSIZE_PHY_1,
152
153};
154/* Default configuration for logical memcpy */
155struct stedma40_chan_cfg dma40_memcpy_conf_log = {
156 .channel_type = (STEDMA40_CHANNEL_IN_LOG_MODE |
157 STEDMA40_LOW_PRIORITY_CHANNEL |
158 STEDMA40_LCHAN_SRC_LOG_DST_LOG |
159 STEDMA40_NO_TIM_FOR_LINK),
160 .dir = STEDMA40_MEM_TO_MEM,
161
162 .src_info.endianess = STEDMA40_LITTLE_ENDIAN,
163 .src_info.data_width = STEDMA40_BYTE_WIDTH,
164 .src_info.psize = STEDMA40_PSIZE_LOG_1,
165
166 .dst_info.endianess = STEDMA40_LITTLE_ENDIAN,
167 .dst_info.data_width = STEDMA40_BYTE_WIDTH,
168 .dst_info.psize = STEDMA40_PSIZE_LOG_1,
169
170};
171
172/*
173 * Mapping between destination event lines and physical device address.
174 * The event line is tied to a device and therefor the address is constant.
175 */
176static const dma_addr_t dma40_tx_map[STEDMA40_NR_DEV];
177
178/* Mapping between source event lines and physical device address */
179static const dma_addr_t dma40_rx_map[STEDMA40_NR_DEV];
180
181/* Reserved event lines for memcpy only */
182static int dma40_memcpy_event[] = {
183 STEDMA40_MEMCPY_TX_1,
184 STEDMA40_MEMCPY_TX_2,
185 STEDMA40_MEMCPY_TX_3,
186 STEDMA40_MEMCPY_TX_4,
187};
188
189static struct stedma40_platform_data dma40_plat_data = {
190 .dev_len = STEDMA40_NR_DEV,
191 .dev_rx = dma40_rx_map,
192 .dev_tx = dma40_tx_map,
193 .memcpy = dma40_memcpy_event,
194 .memcpy_len = ARRAY_SIZE(dma40_memcpy_event),
195 .memcpy_conf_phy = &dma40_memcpy_conf_phy,
196 .memcpy_conf_log = &dma40_memcpy_conf_log,
197 .llis_per_log = 8,
198};
199
200struct platform_device u8500_dma40_device = {
201 .dev = {
202 .platform_data = &dma40_plat_data,
203 },
204 .name = "dma40",
205 .id = 0,
206 .num_resources = ARRAY_SIZE(dma40_resources),
207 .resource = dma40_resources
208};
209
210void dma40_u8500ed_fixup(void)
211{
212 dma40_plat_data.memcpy = NULL;
213 dma40_plat_data.memcpy_len = 0;
214 dma40_resources[0].start = U8500_DMA_BASE_ED;
215 dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1;
216}