2 * Copyright (C) ST-Ericsson SA 2010
4 * License terms: GNU General Public License (GPL), version 2
7 #include <linux/platform_device.h>
8 #include <linux/init.h>
9 #include <linux/gpio.h>
10 #include <linux/platform_data/pinctrl-nomadik.h>
12 #include <plat/ste_dma40.h>
14 #include <mach/devices.h>
15 #include <mach/hardware.h>
16 #include <mach/irqs.h>
19 #include "ste-dma40-db8500.h"
20 #include "board-mop500.h"
21 #include "devices-db8500.h"
22 #include "pins-db8500.h"
24 static struct stedma40_chan_cfg msp0_dma_rx = {
25 .high_priority = true,
26 .dir = STEDMA40_PERIPH_TO_MEM,
28 .src_dev_type = DB8500_DMA_DEV31_MSP0_RX_SLIM0_CH0_RX,
29 .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
31 .src_info.psize = STEDMA40_PSIZE_LOG_4,
32 .dst_info.psize = STEDMA40_PSIZE_LOG_4,
34 /* data_width is set during configuration */
37 static struct stedma40_chan_cfg msp0_dma_tx = {
38 .high_priority = true,
39 .dir = STEDMA40_MEM_TO_PERIPH,
41 .src_dev_type = STEDMA40_DEV_DST_MEMORY,
42 .dst_dev_type = DB8500_DMA_DEV31_MSP0_TX_SLIM0_CH0_TX,
44 .src_info.psize = STEDMA40_PSIZE_LOG_4,
45 .dst_info.psize = STEDMA40_PSIZE_LOG_4,
47 /* data_width is set during configuration */
50 struct msp_i2s_platform_data msp0_platform_data = {
52 .msp_i2s_dma_rx = &msp0_dma_rx,
53 .msp_i2s_dma_tx = &msp0_dma_tx,
56 static struct stedma40_chan_cfg msp1_dma_rx = {
57 .high_priority = true,
58 .dir = STEDMA40_PERIPH_TO_MEM,
60 .src_dev_type = DB8500_DMA_DEV30_MSP3_RX,
61 .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
63 .src_info.psize = STEDMA40_PSIZE_LOG_4,
64 .dst_info.psize = STEDMA40_PSIZE_LOG_4,
66 /* data_width is set during configuration */
69 static struct stedma40_chan_cfg msp1_dma_tx = {
70 .high_priority = true,
71 .dir = STEDMA40_MEM_TO_PERIPH,
73 .src_dev_type = STEDMA40_DEV_DST_MEMORY,
74 .dst_dev_type = DB8500_DMA_DEV30_MSP1_TX,
76 .src_info.psize = STEDMA40_PSIZE_LOG_4,
77 .dst_info.psize = STEDMA40_PSIZE_LOG_4,
79 /* data_width is set during configuration */
82 struct msp_i2s_platform_data msp1_platform_data = {
84 .msp_i2s_dma_rx = NULL,
85 .msp_i2s_dma_tx = &msp1_dma_tx,
88 static struct stedma40_chan_cfg msp2_dma_rx = {
89 .high_priority = true,
90 .dir = STEDMA40_PERIPH_TO_MEM,
92 .src_dev_type = DB8500_DMA_DEV14_MSP2_RX,
93 .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
95 /* MSP2 DMA doesn't work with PSIZE == 4 on DB8500v2 */
96 .src_info.psize = STEDMA40_PSIZE_LOG_1,
97 .dst_info.psize = STEDMA40_PSIZE_LOG_1,
99 /* data_width is set during configuration */
102 static struct stedma40_chan_cfg msp2_dma_tx = {
103 .high_priority = true,
104 .dir = STEDMA40_MEM_TO_PERIPH,
106 .src_dev_type = STEDMA40_DEV_DST_MEMORY,
107 .dst_dev_type = DB8500_DMA_DEV14_MSP2_TX,
109 .src_info.psize = STEDMA40_PSIZE_LOG_4,
110 .dst_info.psize = STEDMA40_PSIZE_LOG_4,
112 .use_fixed_channel = true,
115 /* data_width is set during configuration */
118 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
120 resource_size_t base, int irq,
121 struct msp_i2s_platform_data *pdata)
123 struct platform_device *pdev;
124 struct resource res[] = {
125 DEFINE_RES_MEM(base, SZ_4K),
129 pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
131 pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
132 res, ARRAY_SIZE(res),
133 pdata, sizeof(*pdata));
135 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
143 /* Platform device for ASoC MOP500 machine */
144 static struct platform_device snd_soc_mop500 = {
145 .name = "snd-soc-mop500",
148 .platform_data = NULL,
152 struct msp_i2s_platform_data msp2_platform_data = {
154 .msp_i2s_dma_rx = &msp2_dma_rx,
155 .msp_i2s_dma_tx = &msp2_dma_tx,
158 struct msp_i2s_platform_data msp3_platform_data = {
160 .msp_i2s_dma_rx = &msp1_dma_rx,
161 .msp_i2s_dma_tx = NULL,
164 void mop500_audio_init(struct device *parent)
166 pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
167 platform_device_register(&snd_soc_mop500);
169 pr_info("Initialize MSP I2S-devices.\n");
170 db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
171 &msp0_platform_data);
172 db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
173 &msp1_platform_data);
174 db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
175 &msp2_platform_data);
176 db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
177 &msp3_platform_data);