2 * Copyright (C) ST-Ericsson SA 2010
4 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
5 * License terms: GNU General Public License (GPL) version 2
8 #include <linux/kernel.h>
9 #include <linux/platform_device.h>
10 #include <linux/interrupt.h>
12 #include <linux/gpio.h>
13 #include <linux/amba/bus.h>
15 #include <plat/ste_dma40.h>
17 #include <mach/hardware.h>
18 #include <mach/setup.h>
20 #include "ste-dma40-db8500.h"
22 static 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 */
34 static struct resource u8500_gpio_resources[] = {
46 struct platform_device u8500_gpio_devs[] = {
58 struct amba_device u8500_ssp0_device = {
60 .coherent_dma_mask = ~0,
64 .start = U8500_SSP0_BASE,
65 .end = U8500_SSP0_BASE + SZ_4K - 1,
66 .flags = IORESOURCE_MEM,
68 .irq = {IRQ_DB8500_SSP0, NO_IRQ },
69 /* ST-Ericsson modified id */
70 .periphid = SSP_PER_ID,
73 static struct resource u8500_i2c0_resources[] = {
75 .start = U8500_I2C0_BASE,
76 .end = U8500_I2C0_BASE + SZ_4K - 1,
77 .flags = IORESOURCE_MEM,
80 .start = IRQ_DB8500_I2C0,
81 .end = IRQ_DB8500_I2C0,
82 .flags = IORESOURCE_IRQ,
86 struct platform_device u8500_i2c0_device = {
89 .resource = u8500_i2c0_resources,
90 .num_resources = ARRAY_SIZE(u8500_i2c0_resources),
93 static struct resource u8500_i2c4_resources[] = {
95 .start = U8500_I2C4_BASE,
96 .end = U8500_I2C4_BASE + SZ_4K - 1,
97 .flags = IORESOURCE_MEM,
100 .start = IRQ_DB8500_I2C4,
101 .end = IRQ_DB8500_I2C4,
102 .flags = IORESOURCE_IRQ,
106 struct platform_device u8500_i2c4_device = {
109 .resource = u8500_i2c4_resources,
110 .num_resources = ARRAY_SIZE(u8500_i2c4_resources),
113 static struct resource dma40_resources[] = {
115 .start = U8500_DMA_BASE,
116 .end = U8500_DMA_BASE + SZ_4K - 1,
117 .flags = IORESOURCE_MEM,
121 .start = U8500_DMA_LCPA_BASE,
122 .end = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
123 .flags = IORESOURCE_MEM,
127 .start = IRQ_DB8500_DMA,
128 .end = IRQ_DB8500_DMA,
129 .flags = IORESOURCE_IRQ,
133 /* Default configuration for physcial memcpy */
134 struct stedma40_chan_cfg dma40_memcpy_conf_phy = {
135 .channel_type = (STEDMA40_CHANNEL_IN_PHY_MODE |
136 STEDMA40_LOW_PRIORITY_CHANNEL |
137 STEDMA40_PCHAN_BASIC_MODE),
138 .dir = STEDMA40_MEM_TO_MEM,
140 .src_info.endianess = STEDMA40_LITTLE_ENDIAN,
141 .src_info.data_width = STEDMA40_BYTE_WIDTH,
142 .src_info.psize = STEDMA40_PSIZE_PHY_1,
143 .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
145 .dst_info.endianess = STEDMA40_LITTLE_ENDIAN,
146 .dst_info.data_width = STEDMA40_BYTE_WIDTH,
147 .dst_info.psize = STEDMA40_PSIZE_PHY_1,
148 .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
150 /* Default configuration for logical memcpy */
151 struct stedma40_chan_cfg dma40_memcpy_conf_log = {
152 .channel_type = (STEDMA40_CHANNEL_IN_LOG_MODE |
153 STEDMA40_LOW_PRIORITY_CHANNEL |
154 STEDMA40_LCHAN_SRC_LOG_DST_LOG |
155 STEDMA40_NO_TIM_FOR_LINK),
156 .dir = STEDMA40_MEM_TO_MEM,
158 .src_info.endianess = STEDMA40_LITTLE_ENDIAN,
159 .src_info.data_width = STEDMA40_BYTE_WIDTH,
160 .src_info.psize = STEDMA40_PSIZE_LOG_1,
161 .src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
163 .dst_info.endianess = STEDMA40_LITTLE_ENDIAN,
164 .dst_info.data_width = STEDMA40_BYTE_WIDTH,
165 .dst_info.psize = STEDMA40_PSIZE_LOG_1,
166 .dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
170 * Mapping between destination event lines and physical device address.
171 * The event line is tied to a device and therefor the address is constant.
173 static const dma_addr_t dma40_tx_map[STEDMA40_NR_DEV];
175 /* Mapping between source event lines and physical device address */
176 static const dma_addr_t dma40_rx_map[STEDMA40_NR_DEV];
178 /* Reserved event lines for memcpy only */
179 static int dma40_memcpy_event[] = {
180 STEDMA40_MEMCPY_TX_0,
181 STEDMA40_MEMCPY_TX_1,
182 STEDMA40_MEMCPY_TX_2,
183 STEDMA40_MEMCPY_TX_3,
184 STEDMA40_MEMCPY_TX_4,
185 STEDMA40_MEMCPY_TX_5,
188 static struct stedma40_platform_data dma40_plat_data = {
189 .dev_len = STEDMA40_NR_DEV,
190 .dev_rx = dma40_rx_map,
191 .dev_tx = dma40_tx_map,
192 .memcpy = dma40_memcpy_event,
193 .memcpy_len = ARRAY_SIZE(dma40_memcpy_event),
194 .memcpy_conf_phy = &dma40_memcpy_conf_phy,
195 .memcpy_conf_log = &dma40_memcpy_conf_log,
197 .disabled_channels = {-1},
200 struct platform_device u8500_dma40_device = {
202 .platform_data = &dma40_plat_data,
206 .num_resources = ARRAY_SIZE(dma40_resources),
207 .resource = dma40_resources
210 void dma40_u8500ed_fixup(void)
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 dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED;
217 dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1;