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mach-ux500
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board-u5500-sdi.c

board-u5500-sdi.c 2.1 KB
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  1. /*
    2. 

  2.  * Copyright (C) ST-Ericsson SA 2010
    3. 

  3.  *
    4. 

  4.  * Author: Hanumath Prasad <ulf.hansson@stericsson.com>
    5. 

  5.  * License terms: GNU General Public License (GPL) version 2
    6. 

  6.  */
    7. 

  7. 

  8. #include <linux/amba/mmci.h>
    9. 

  9. #include <linux/mmc/host.h>
    10. 

  10. #include <linux/gpio.h>
    11. 

  11. 

  12. #include <plat/pincfg.h>
    13. 

  13. #include <mach/db5500-regs.h>
    14. 

  14. #include <plat/ste_dma40.h>
    15. 

  15. 

  16. #include "pins-db5500.h"
    17. 

  17. #include "devices-db5500.h"
    18. 

  18. #include "ste-dma40-db5500.h"
    19. 

  19. 

  20. static pin_cfg_t u5500_sdi_pins[] = {
    21. 

  21. 	/* SDI0 (POP eMMC) */
    22. 

  22. 	GPIO5_MC0_DAT0		| PIN_DIR_INPUT | PIN_PULL_UP,
    23. 

  23. 	GPIO6_MC0_DAT1		| PIN_DIR_INPUT | PIN_PULL_UP,
    24. 

  24. 	GPIO7_MC0_DAT2		| PIN_DIR_INPUT | PIN_PULL_UP,
    25. 

  25. 	GPIO8_MC0_DAT3		| PIN_DIR_INPUT | PIN_PULL_UP,
    26. 

  26. 	GPIO9_MC0_DAT4		| PIN_DIR_INPUT | PIN_PULL_UP,
    27. 

  27. 	GPIO10_MC0_DAT5		| PIN_DIR_INPUT | PIN_PULL_UP,
    28. 

  28. 	GPIO11_MC0_DAT6		| PIN_DIR_INPUT | PIN_PULL_UP,
    29. 

  29. 	GPIO12_MC0_DAT7		| PIN_DIR_INPUT | PIN_PULL_UP,
    30. 

  30. 	GPIO13_MC0_CMD		| PIN_DIR_INPUT | PIN_PULL_UP,
    31. 

  31. 	GPIO14_MC0_CLK		| PIN_DIR_OUTPUT | PIN_VAL_LOW,
    32. 

  32. };
    33. 

  33. 

  34. #ifdef CONFIG_STE_DMA40
    35. 

  35. struct stedma40_chan_cfg u5500_sdi0_dma_cfg_rx = {
    36. 

  36. 	.mode = STEDMA40_MODE_LOGICAL,
    37. 

  37. 	.dir = STEDMA40_PERIPH_TO_MEM,
    38. 

  38. 	.src_dev_type = DB5500_DMA_DEV24_SDMMC0_RX,
    39. 

  39. 	.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
    40. 

  40. 	.src_info.data_width = STEDMA40_WORD_WIDTH,
    41. 

  41. 	.dst_info.data_width = STEDMA40_WORD_WIDTH,
    42. 

  42. };
    43. 

  43. 

  44. static struct stedma40_chan_cfg u5500_sdi0_dma_cfg_tx = {
    45. 

  45. 	.mode = STEDMA40_MODE_LOGICAL,
    46. 

  46. 	.dir = STEDMA40_MEM_TO_PERIPH,
    47. 

  47. 	.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
    48. 

  48. 	.dst_dev_type = DB5500_DMA_DEV24_SDMMC0_TX,
    49. 

  49. 	.src_info.data_width = STEDMA40_WORD_WIDTH,
    50. 

  50. 	.dst_info.data_width = STEDMA40_WORD_WIDTH,
    51. 

  51. };
    52. 

  52. #endif
    53. 

  53. 

  54. static struct mmci_platform_data u5500_sdi0_data = {
    55. 

  55. 	.ocr_mask	= MMC_VDD_165_195,
    56. 

  56. 	.f_max		= 50000000,
    57. 

  57. 	.capabilities	= MMC_CAP_4_BIT_DATA |
    58. 

  58. 				MMC_CAP_8_BIT_DATA |
    59. 

  59. 				MMC_CAP_MMC_HIGHSPEED,
    60. 

  60. 	.gpio_cd	= -1,
    61. 

  61. 	.gpio_wp	= -1,
    62. 

  62. #ifdef CONFIG_STE_DMA40
    63. 

  63. 	.dma_filter	= stedma40_filter,
    64. 

  64. 	.dma_rx_param	= &u5500_sdi0_dma_cfg_rx,
    65. 

  65. 	.dma_tx_param	= &u5500_sdi0_dma_cfg_tx,
    66. 

  66. #endif
    67. 

  67. };
    68. 

  68. 

  69. void __init u5500_sdi_init(void)
    70. 

  70. {
    71. 

  71. 	nmk_config_pins(u5500_sdi_pins, ARRAY_SIZE(u5500_sdi_pins));
    72. 

  72. 

  73. 	db5500_add_sdi0(&u5500_sdi0_data);
    74. 

  74. }
    75. 

  75.