include/linux/mmc/sd.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  include/linux/mmc/sd.h
   4  *
   5  *  Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
   6  */
   7
   8 #ifndef LINUX_MMC_SD_H
   9 #define LINUX_MMC_SD_H
  10
  11 /* SD commands                           type  argument     response */
  12   /* class 0 */
  13 /* This is basically the same command as for MMC with some quirks. */
  14 #define SD_SEND_RELATIVE_ADDR     3   /* bcr                     R6  */
  15 #define SD_SEND_IF_COND           8   /* bcr  [11:0] See below   R7  */
  16 #define SD_SWITCH_VOLTAGE         11  /* ac                      R1  */
  17
  18 /* Class 2 */
  19 #define SD_ADDR_EXT              22   /* ac   [5:0]              R1  */
  20
  21   /* class 10 */
  22 #define SD_SWITCH                 6   /* adtc [31:0] See below   R1  */
  23
  24   /* class 5 */
  25 #define SD_ERASE_WR_BLK_START    32   /* ac   [31:0] data addr   R1  */
  26 #define SD_ERASE_WR_BLK_END      33   /* ac   [31:0] data addr   R1  */
  27
  28   /* Application commands */
  29 #define SD_APP_SET_BUS_WIDTH      6   /* ac   [1:0] bus width    R1  */
  30 #define SD_APP_SD_STATUS         13   /* adtc                    R1  */
  31 #define SD_APP_SEND_NUM_WR_BLKS  22   /* adtc                    R1  */
  32 #define SD_APP_OP_COND           41   /* bcr  [31:0] OCR         R3  */
  33 #define SD_APP_SEND_SCR          51   /* adtc                    R1  */
  34
  35   /* class 11 */
  36 #define SD_READ_EXTR_SINGLE      48   /* adtc [31:0]             R1  */
  37 #define SD_WRITE_EXTR_SINGLE     49   /* adtc [31:0]             R1  */
  38
  39 /* OCR bit definitions */
  40 #define SD_OCR_S18R             (1 << 24)    /* 1.8V switching request */
  41 #define SD_ROCR_S18A            SD_OCR_S18R  /* 1.8V switching accepted by card */
  42 #define SD_OCR_2T               (1 << 27)    /* HO2T/CO2T - SDUC support */
  43 #define SD_OCR_XPC              (1 << 28)    /* SDXC power control */
  44 #define SD_OCR_CCS              (1 << 30)    /* Card Capacity Status */
  45
  46 /*
  47  * SD_SWITCH argument format:
  48  *
  49  *      [31] Check (0) or switch (1)
  50  *      [30:24] Reserved (0)
  51  *      [23:20] Function group 6
  52  *      [19:16] Function group 5
  53  *      [15:12] Function group 4
  54  *      [11:8] Function group 3
  55  *      [7:4] Function group 2
  56  *      [3:0] Function group 1
  57  */
  58
  59 /*
  60  * SD_SEND_IF_COND argument format:
  61  *
  62  *      [31:12] Reserved (0)
  63  *      [11:8] Host Voltage Supply Flags
  64  *      [7:0] Check Pattern (0xAA)
  65  */
  66
  67 /*
  68  * SCR field definitions
  69  */
  70
  71 #define SCR_SPEC_VER_0          0       /* Implements system specification 1.0 - 1.01 */
  72 #define SCR_SPEC_VER_1          1       /* Implements system specification 1.10 */
  73 #define SCR_SPEC_VER_2          2       /* Implements system specification 2.00-3.0X */
  74
  75 /*
  76  * SD bus widths
  77  */
  78 #define SD_BUS_WIDTH_1          0
  79 #define SD_BUS_WIDTH_4          2
  80
  81 /*
  82  * SD_SWITCH mode
  83  */
  84 #define SD_SWITCH_CHECK         0
  85 #define SD_SWITCH_SET           1
  86
  87 /*
  88  * SD_SWITCH function groups
  89  */
  90 #define SD_SWITCH_GRP_ACCESS    0
  91
  92 /*
  93  * SD_SWITCH access modes
  94  */
  95 #define SD_SWITCH_ACCESS_DEF    0
  96 #define SD_SWITCH_ACCESS_HS     1
  97
  98 /*
  99  * Erase/discard
 100  */
 101 #define SD_ERASE_ARG                    0x00000000
 102 #define SD_DISCARD_ARG                  0x00000001
 103
 104 #endif /* LINUX_MMC_SD_H */