platform-imx-dma.c 5.2 KB

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