arch/arm/plat-mxc/devices/platform-imx-dma.c

   1 /*
   2  * Copyright (C) 2010 Pengutronix
   3  * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9 #include <linux/compiler.h>
  10 #include <linux/err.h>
  11 #include <linux/init.h>
  12
  13 #include <mach/hardware.h>
  14 #include <mach/devices-common.h>
  15 #include <mach/sdma.h>
  16
  17 struct imx_imx_sdma_data {
  18         resource_size_t iobase;
  19         resource_size_t irq;
  20         struct sdma_platform_data pdata;
  21 };
  22
  23 #define imx_imx_sdma_data_entry_single(soc, _sdma_version, _cpu_name, _to_version)\
  24         {                                                               \
  25                 .iobase = soc ## _SDMA ## _BASE_ADDR,                   \
  26                 .irq = soc ## _INT_SDMA,                                \
  27                 .pdata = {                                              \
  28                         .sdma_version = _sdma_version,                  \
  29                         .cpu_name = _cpu_name,                          \
  30                         .to_version = _to_version,                      \
  31                 },                                                      \
  32         }
  33
  34 #ifdef CONFIG_SOC_IMX25
  35 struct imx_imx_sdma_data imx25_imx_sdma_data __initconst =
  36         imx_imx_sdma_data_entry_single(MX25, 1, "imx25", 0);
  37 #endif /* ifdef CONFIG_SOC_IMX25 */
  38
  39 #ifdef CONFIG_SOC_IMX31
  40 struct imx_imx_sdma_data imx31_imx_sdma_data __initdata =
  41         imx_imx_sdma_data_entry_single(MX31, 1, "imx31", 0);
  42 #endif /* ifdef CONFIG_SOC_IMX31 */
  43
  44 #ifdef CONFIG_SOC_IMX35
  45 struct imx_imx_sdma_data imx35_imx_sdma_data __initdata =
  46         imx_imx_sdma_data_entry_single(MX35, 2, "imx35", 0);
  47 #endif /* ifdef CONFIG_SOC_IMX35 */
  48
  49 #ifdef CONFIG_SOC_IMX51
  50 struct imx_imx_sdma_data imx51_imx_sdma_data __initconst =
  51         imx_imx_sdma_data_entry_single(MX51, 2, "imx51", 0);
  52 #endif /* ifdef CONFIG_SOC_IMX51 */
  53
  54 static struct platform_device __init __maybe_unused *imx_add_imx_sdma(
  55                 const struct imx_imx_sdma_data *data)
  56 {
  57         struct resource res[] = {
  58                 {
  59                         .start = data->iobase,
  60                         .end = data->iobase + SZ_4K - 1,
  61                         .flags = IORESOURCE_MEM,
  62                 }, {
  63                         .start = data->irq,
  64                         .end = data->irq,
  65                         .flags = IORESOURCE_IRQ,
  66                 },
  67         };
  68
  69         return imx_add_platform_device("imx-sdma", -1,
  70                         res, ARRAY_SIZE(res),
  71                         &data->pdata, sizeof(data->pdata));
  72 }
  73
  74 static struct platform_device __init __maybe_unused *imx_add_imx_dma(void)
  75 {
  76         return imx_add_platform_device("imx-dma", -1, NULL, 0, NULL, 0);
  77 }
  78
  79 #ifdef CONFIG_ARCH_MX25
  80 static struct sdma_script_start_addrs addr_imx25_to1 = {
  81         .ap_2_ap_addr = 729,
  82         .uart_2_mcu_addr = 904,
  83         .per_2_app_addr = 1255,
  84         .mcu_2_app_addr = 834,
  85         .uartsh_2_mcu_addr = 1120,
  86         .per_2_shp_addr = 1329,
  87         .mcu_2_shp_addr = 1048,
  88         .ata_2_mcu_addr = 1560,
  89         .mcu_2_ata_addr = 1479,
  90         .app_2_per_addr = 1189,
  91         .app_2_mcu_addr = 770,
  92         .shp_2_per_addr = 1407,
  93         .shp_2_mcu_addr = 979,
  94 };
  95 #endif
  96
  97 #ifdef CONFIG_ARCH_MX31
  98 static struct sdma_script_start_addrs addr_imx31_to1 = {
  99         .per_2_per_addr = 1677,
 100 };
 101
 102 static struct sdma_script_start_addrs addr_imx31_to2 = {
 103         .ap_2_ap_addr = 423,
 104         .ap_2_bp_addr = 829,
 105         .bp_2_ap_addr = 1029,
 106 };
 107 #endif
 108
 109 #ifdef CONFIG_ARCH_MX35
 110 static struct sdma_script_start_addrs addr_imx35_to1 = {
 111         .ap_2_ap_addr = 642,
 112         .uart_2_mcu_addr = 817,
 113         .mcu_2_app_addr = 747,
 114         .uartsh_2_mcu_addr = 1183,
 115         .per_2_shp_addr = 1033,
 116         .mcu_2_shp_addr = 961,
 117         .ata_2_mcu_addr = 1333,
 118         .mcu_2_ata_addr = 1252,
 119         .app_2_mcu_addr = 683,
 120         .shp_2_per_addr = 1111,
 121         .shp_2_mcu_addr = 892,
 122 };
 123
 124 static struct sdma_script_start_addrs addr_imx35_to2 = {
 125         .ap_2_ap_addr = 729,
 126         .uart_2_mcu_addr = 904,
 127         .per_2_app_addr = 1597,
 128         .mcu_2_app_addr = 834,
 129         .uartsh_2_mcu_addr = 1270,
 130         .per_2_shp_addr = 1120,
 131         .mcu_2_shp_addr = 1048,
 132         .ata_2_mcu_addr = 1429,
 133         .mcu_2_ata_addr = 1339,
 134         .app_2_per_addr = 1531,
 135         .app_2_mcu_addr = 770,
 136         .shp_2_per_addr = 1198,
 137         .shp_2_mcu_addr = 979,
 138 };
 139 #endif
 140
 141 #ifdef CONFIG_SOC_IMX51
 142 static struct sdma_script_start_addrs addr_imx51_to1 = {
 143         .ap_2_ap_addr = 642,
 144         .uart_2_mcu_addr = 817,
 145         .mcu_2_app_addr = 747,
 146         .mcu_2_shp_addr = 961,
 147         .ata_2_mcu_addr = 1473,
 148         .mcu_2_ata_addr = 1392,
 149         .app_2_per_addr = 1033,
 150         .app_2_mcu_addr = 683,
 151         .shp_2_per_addr = 1251,
 152         .shp_2_mcu_addr = 892,
 153 };
 154 #endif
 155
 156 static int __init imxXX_add_imx_dma(void)
 157 {
 158         struct platform_device *ret;
 159
 160 #if defined(CONFIG_SOC_IMX21) || defined(CONFIG_SOC_IMX27)
 161         if (cpu_is_mx21() || cpu_is_mx27())
 162                 ret = imx_add_imx_dma();
 163         else
 164 #endif
 165
 166 #if defined(CONFIG_SOC_IMX25)
 167         if (cpu_is_mx25()) {
 168                 imx25_imx_sdma_data.pdata.script_addrs = &addr_imx25_to1;
 169                 ret = imx_add_imx_sdma(&imx25_imx_sdma_data);
 170         } else
 171 #endif
 172
 173 #if defined(CONFIG_SOC_IMX31)
 174         if (cpu_is_mx31()) {
 175                 int to_version = mx31_revision() >> 4;
 176                 imx31_imx_sdma_data.pdata.to_version = to_version;
 177                 if (to_version == 1)
 178                         imx31_imx_sdma_data.pdata.script_addrs = &addr_imx31_to1;
 179                 else
 180                         imx31_imx_sdma_data.pdata.script_addrs = &addr_imx31_to2;
 181                 ret = imx_add_imx_sdma(&imx31_imx_sdma_data);
 182         } else
 183 #endif
 184
 185 #if defined(CONFIG_SOC_IMX35)
 186         if (cpu_is_mx35()) {
 187                 int to_version = mx35_revision() >> 4;
 188                 imx35_imx_sdma_data.pdata.to_version = to_version;
 189                 if (to_version == 1)
 190                         imx35_imx_sdma_data.pdata.script_addrs = &addr_imx35_to1;
 191                 else
 192                         imx35_imx_sdma_data.pdata.script_addrs = &addr_imx35_to2;
 193                 ret = imx_add_imx_sdma(&imx35_imx_sdma_data);
 194         } else
 195 #endif
 196
 197 #if defined(CONFIG_ARCH_MX51)
 198         if (cpu_is_mx51()) {
 199                 imx51_imx_sdma_data.pdata.script_addrs = &addr_imx51_to1;
 200                 ret = imx_add_imx_sdma(&imx51_imx_sdma_data);
 201         } else
 202 #endif
 203                 ret = ERR_PTR(-ENODEV);
 204
 205         if (IS_ERR(ret))
 206                 return PTR_ERR(ret);
 207
 208         return 0;
 209 }
 210 arch_initcall(imxXX_add_imx_dma);