arch/arm/mach-ux500/board-mop500-msp.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License terms: GNU General Public License (GPL), version 2
   5  */
   6
   7 #include <linux/platform_device.h>
   8 #include <linux/init.h>
   9 #include <linux/gpio.h>
  10
  11 #include <plat/gpio-nomadik.h>
  12 #include <plat/pincfg.h>
  13 #include <plat/ste_dma40.h>
  14
  15 #include <mach/devices.h>
  16 #include <mach/hardware.h>
  17 #include <mach/irqs.h>
  18 #include <mach/msp.h>
  19
  20 #include "ste-dma40-db8500.h"
  21 #include "board-mop500.h"
  22 #include "devices-db8500.h"
  23 #include "pins-db8500.h"
  24
  25 static struct stedma40_chan_cfg msp0_dma_rx = {
  26         .high_priority = true,
  27         .dir = STEDMA40_PERIPH_TO_MEM,
  28
  29         .src_dev_type = DB8500_DMA_DEV31_MSP0_RX_SLIM0_CH0_RX,
  30         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  31
  32         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  33         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  34
  35         /* data_width is set during configuration */
  36 };
  37
  38 static struct stedma40_chan_cfg msp0_dma_tx = {
  39         .high_priority = true,
  40         .dir = STEDMA40_MEM_TO_PERIPH,
  41
  42         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  43         .dst_dev_type = DB8500_DMA_DEV31_MSP0_TX_SLIM0_CH0_TX,
  44
  45         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  46         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  47
  48         /* data_width is set during configuration */
  49 };
  50
  51 static struct msp_i2s_platform_data msp0_platform_data = {
  52         .id = MSP_I2S_0,
  53         .msp_i2s_dma_rx = &msp0_dma_rx,
  54         .msp_i2s_dma_tx = &msp0_dma_tx,
  55 };
  56
  57 static struct stedma40_chan_cfg msp1_dma_rx = {
  58         .high_priority = true,
  59         .dir = STEDMA40_PERIPH_TO_MEM,
  60
  61         .src_dev_type = DB8500_DMA_DEV30_MSP3_RX,
  62         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  63
  64         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  65         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  66
  67         /* data_width is set during configuration */
  68 };
  69
  70 static struct stedma40_chan_cfg msp1_dma_tx = {
  71         .high_priority = true,
  72         .dir = STEDMA40_MEM_TO_PERIPH,
  73
  74         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  75         .dst_dev_type = DB8500_DMA_DEV30_MSP1_TX,
  76
  77         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  78         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  79
  80         /* data_width is set during configuration */
  81 };
  82
  83 static struct msp_i2s_platform_data msp1_platform_data = {
  84         .id = MSP_I2S_1,
  85         .msp_i2s_dma_rx = NULL,
  86         .msp_i2s_dma_tx = &msp1_dma_tx,
  87 };
  88
  89 static struct stedma40_chan_cfg msp2_dma_rx = {
  90         .high_priority = true,
  91         .dir = STEDMA40_PERIPH_TO_MEM,
  92
  93         .src_dev_type = DB8500_DMA_DEV14_MSP2_RX,
  94         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  95
  96         /* MSP2 DMA doesn't work with PSIZE == 4 on DB8500v2 */
  97         .src_info.psize = STEDMA40_PSIZE_LOG_1,
  98         .dst_info.psize = STEDMA40_PSIZE_LOG_1,
  99
 100         /* data_width is set during configuration */
 101 };
 102
 103 static struct stedma40_chan_cfg msp2_dma_tx = {
 104         .high_priority = true,
 105         .dir = STEDMA40_MEM_TO_PERIPH,
 106
 107         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
 108         .dst_dev_type = DB8500_DMA_DEV14_MSP2_TX,
 109
 110         .src_info.psize = STEDMA40_PSIZE_LOG_4,
 111         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
 112
 113         .use_fixed_channel = true,
 114         .phy_channel = 1,
 115
 116         /* data_width is set during configuration */
 117 };
 118
 119 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
 120                         int id,
 121                         resource_size_t base, int irq,
 122                         struct msp_i2s_platform_data *pdata)
 123 {
 124         struct platform_device *pdev;
 125         struct resource res[] = {
 126                 DEFINE_RES_MEM(base, SZ_4K),
 127                 DEFINE_RES_IRQ(irq),
 128         };
 129
 130         pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
 131                 id, irq);
 132         pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
 133                                                 res, ARRAY_SIZE(res),
 134                                                 pdata, sizeof(*pdata));
 135         if (!pdev) {
 136                 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
 137                         id);
 138                 return NULL;
 139         }
 140
 141         return pdev;
 142 }
 143
 144 /* Platform device for ASoC MOP500 machine */
 145 static struct platform_device snd_soc_mop500 = {
 146         .name = "snd-soc-mop500",
 147         .id = 0,
 148         .dev = {
 149                 .platform_data = NULL,
 150         },
 151 };
 152
 153 /* Platform device for Ux500-PCM */
 154 static struct platform_device ux500_pcm = {
 155                 .name = "ux500-pcm",
 156                 .id = 0,
 157                 .dev = {
 158                         .platform_data = NULL,
 159                 },
 160 };
 161
 162 static struct msp_i2s_platform_data msp2_platform_data = {
 163         .id = MSP_I2S_2,
 164         .msp_i2s_dma_rx = &msp2_dma_rx,
 165         .msp_i2s_dma_tx = &msp2_dma_tx,
 166 };
 167
 168 static struct msp_i2s_platform_data msp3_platform_data = {
 169         .id             = MSP_I2S_3,
 170         .msp_i2s_dma_rx = &msp1_dma_rx,
 171         .msp_i2s_dma_tx = NULL,
 172 };
 173
 174 void mop500_msp_init(struct device *parent)
 175 {
 176         pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
 177         platform_device_register(&snd_soc_mop500);
 178
 179         pr_info("Initialize MSP I2S-devices.\n");
 180         db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
 181                            &msp0_platform_data);
 182         db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
 183                            &msp1_platform_data);
 184         db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
 185                            &msp2_platform_data);
 186         db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
 187                            &msp3_platform_data);
 188 }