sd.h 2.7 KB

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  1. /*
  2. * include/linux/mmc/sd.h
  3. *
  4. * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or (at
  9. * your option) any later version.
  10. */
  11. #ifndef LINUX_MMC_SD_H
  12. #define LINUX_MMC_SD_H
  13. /* SD commands type argument response */
  14. /* class 0 */
  15. /* This is basically the same command as for MMC with some quirks. */
  16. #define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */
  17. #define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */
  18. #define SD_SWITCH_VOLTAGE 11 /* ac R1 */
  19. /* class 10 */
  20. #define SD_SWITCH 6 /* adtc [31:0] See below R1 */
  21. /* class 5 */
  22. #define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */
  23. #define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */
  24. /* Application commands */
  25. #define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */
  26. #define SD_APP_SD_STATUS 13 /* adtc R1 */
  27. #define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */
  28. #define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */
  29. #define SD_APP_SEND_SCR 51 /* adtc R1 */
  30. /* OCR bit definitions */
  31. #define SD_OCR_S18R (1 << 24) /* 1.8V switching request */
  32. #define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */
  33. #define SD_OCR_XPC (1 << 28) /* SDXC power control */
  34. #define SD_OCR_CCS (1 << 30) /* Card Capacity Status */
  35. /*
  36. * SD_SWITCH argument format:
  37. *
  38. * [31] Check (0) or switch (1)
  39. * [30:24] Reserved (0)
  40. * [23:20] Function group 6
  41. * [19:16] Function group 5
  42. * [15:12] Function group 4
  43. * [11:8] Function group 3
  44. * [7:4] Function group 2
  45. * [3:0] Function group 1
  46. */
  47. /*
  48. * SD_SEND_IF_COND argument format:
  49. *
  50. * [31:12] Reserved (0)
  51. * [11:8] Host Voltage Supply Flags
  52. * [7:0] Check Pattern (0xAA)
  53. */
  54. /*
  55. * SCR field definitions
  56. */
  57. #define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */
  58. #define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */
  59. #define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */
  60. /*
  61. * SD bus widths
  62. */
  63. #define SD_BUS_WIDTH_1 0
  64. #define SD_BUS_WIDTH_4 2
  65. /*
  66. * SD_SWITCH mode
  67. */
  68. #define SD_SWITCH_CHECK 0
  69. #define SD_SWITCH_SET 1
  70. /*
  71. * SD_SWITCH function groups
  72. */
  73. #define SD_SWITCH_GRP_ACCESS 0
  74. /*
  75. * SD_SWITCH access modes
  76. */
  77. #define SD_SWITCH_ACCESS_DEF 0
  78. #define SD_SWITCH_ACCESS_HS 1
  79. #endif /* LINUX_MMC_SD_H */