include/atmel_mci.h

   1 /*
   2  * Copyright (C) 2005-2006 Atmel Corporation
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #ifndef __ATMEL_MCI_H__
   7 #define __ATMEL_MCI_H__
   8
   9 int atmel_mci_init(void *regs);
  10
  11 #ifndef __ASSEMBLY__
  12
  13 /*
  14  * Structure for struct SoC access.
  15  * Names starting with '_' are fillers.
  16  */
  17 typedef struct atmel_mci {
  18         /*      reg     Offset */
  19         u32     cr;     /* 0x00 */
  20         u32     mr;     /* 0x04 */
  21         u32     dtor;   /* 0x08 */
  22         u32     sdcr;   /* 0x0c */
  23         u32     argr;   /* 0x10 */
  24         u32     cmdr;   /* 0x14 */
  25         u32     blkr;   /* 0x18 */
  26         u32     _1c;    /* 0x1c */
  27         u32     rspr;   /* 0x20 */
  28         u32     rspr1;  /* 0x24 */
  29         u32     rspr2;  /* 0x28 */
  30         u32     rspr3;  /* 0x2c */
  31         u32     rdr;    /* 0x30 */
  32         u32     tdr;    /* 0x34 */
  33         u32     _38;    /* 0x38 */
  34         u32     _3c;    /* 0x3c */
  35         u32     sr;     /* 0x40 */
  36         u32     ier;    /* 0x44 */
  37         u32     idr;    /* 0x48 */
  38         u32     imr;    /* 0x4c */
  39         u32     reserved[43];
  40         u32     version;
  41 } atmel_mci_t;
  42
  43 #endif /* __ASSEMBLY__ */
  44
  45 /* Bitfields in CR */
  46 #define MMCI_MCIEN_OFFSET                       0
  47 #define MMCI_MCIEN_SIZE                         1
  48 #define MMCI_MCIDIS_OFFSET                      1
  49 #define MMCI_MCIDIS_SIZE                        1
  50 #define MMCI_PWSEN_OFFSET                       2
  51 #define MMCI_PWSEN_SIZE                         1
  52 #define MMCI_PWSDIS_OFFSET                      3
  53 #define MMCI_PWSDIS_SIZE                        1
  54 #define MMCI_SWRST_OFFSET                       7
  55 #define MMCI_SWRST_SIZE                         1
  56
  57 /* Bitfields in MR */
  58 #define MMCI_CLKDIV_OFFSET                      0
  59 #define MMCI_CLKDIV_SIZE                        8
  60 #define MMCI_PWSDIV_OFFSET                      8
  61 #define MMCI_PWSDIV_SIZE                        3
  62 #define MMCI_RDPROOF_OFFSET                     11
  63 #define MMCI_RDPROOF_SIZE                       1
  64 #define MMCI_WRPROOF_OFFSET                     12
  65 #define MMCI_WRPROOF_SIZE                       1
  66 #define MMCI_PDCPADV_OFFSET                     14
  67 #define MMCI_PDCPADV_SIZE                       1
  68 #define MMCI_PDCMODE_OFFSET                     15
  69 #define MMCI_PDCMODE_SIZE                       1
  70 /* MCI IP version >= 0x500, MR bit 16 used for CLKODD */
  71 #define MMCI_CLKODD_OFFSET                      16
  72 #define MMCI_CLKODD_SIZE                        1
  73 /* MCI IP version < 0x200, MR higher 16bits for BLKLEN */
  74 #define MMCI_BLKLEN_OFFSET                      16
  75 #define MMCI_BLKLEN_SIZE                        16
  76
  77 /* Bitfields in DTOR */
  78 #define MMCI_DTOCYC_OFFSET                      0
  79 #define MMCI_DTOCYC_SIZE                        4
  80 #define MMCI_DTOMUL_OFFSET                      4
  81 #define MMCI_DTOMUL_SIZE                        3
  82
  83 /* Bitfields in SDCR */
  84 #define MMCI_SCDSEL_OFFSET                      0
  85 #define MMCI_SCDSEL_SIZE                        4
  86 #define MMCI_SCDBUS_OFFSET                      7
  87 #define MMCI_SCDBUS_SIZE                        1
  88
  89 /* Bitfields in ARGR */
  90 #define MMCI_ARG_OFFSET                         0
  91 #define MMCI_ARG_SIZE                           32
  92
  93 /* Bitfields in CMDR */
  94 #define MMCI_CMDNB_OFFSET                       0
  95 #define MMCI_CMDNB_SIZE                         6
  96 #define MMCI_RSPTYP_OFFSET                      6
  97 #define MMCI_RSPTYP_SIZE                        2
  98 #define MMCI_SPCMD_OFFSET                       8
  99 #define MMCI_SPCMD_SIZE                         3
 100 #define MMCI_OPDCMD_OFFSET                      11
 101 #define MMCI_OPDCMD_SIZE                        1
 102 #define MMCI_MAXLAT_OFFSET                      12
 103 #define MMCI_MAXLAT_SIZE                        1
 104 #define MMCI_TRCMD_OFFSET                       16
 105 #define MMCI_TRCMD_SIZE                         2
 106 #define MMCI_TRDIR_OFFSET                       18
 107 #define MMCI_TRDIR_SIZE                         1
 108 #define MMCI_TRTYP_OFFSET                       19
 109 #define MMCI_TRTYP_SIZE                         2
 110
 111 /* Bitfields in BLKR */
 112 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
 113 #define MMCI_BCNT_OFFSET                        0
 114 #define MMCI_BCNT_SIZE                  16
 115
 116 /* Bitfields in RSPRx */
 117 #define MMCI_RSP_OFFSET                         0
 118 #define MMCI_RSP_SIZE                           32
 119
 120 /* Bitfields in SR/IER/IDR/IMR */
 121 #define MMCI_CMDRDY_OFFSET                      0
 122 #define MMCI_CMDRDY_SIZE                        1
 123 #define MMCI_RXRDY_OFFSET                       1
 124 #define MMCI_RXRDY_SIZE                         1
 125 #define MMCI_TXRDY_OFFSET                       2
 126 #define MMCI_TXRDY_SIZE                         1
 127 #define MMCI_BLKE_OFFSET                        3
 128 #define MMCI_BLKE_SIZE                          1
 129 #define MMCI_DTIP_OFFSET                        4
 130 #define MMCI_DTIP_SIZE                          1
 131 #define MMCI_NOTBUSY_OFFSET                     5
 132 #define MMCI_NOTBUSY_SIZE                       1
 133 #define MMCI_ENDRX_OFFSET                       6
 134 #define MMCI_ENDRX_SIZE                         1
 135 #define MMCI_ENDTX_OFFSET                       7
 136 #define MMCI_ENDTX_SIZE                         1
 137 #define MMCI_RXBUFF_OFFSET                      14
 138 #define MMCI_RXBUFF_SIZE                        1
 139 #define MMCI_TXBUFE_OFFSET                      15
 140 #define MMCI_TXBUFE_SIZE                        1
 141 #define MMCI_RINDE_OFFSET                       16
 142 #define MMCI_RINDE_SIZE                         1
 143 #define MMCI_RDIRE_OFFSET                       17
 144 #define MMCI_RDIRE_SIZE                         1
 145 #define MMCI_RCRCE_OFFSET                       18
 146 #define MMCI_RCRCE_SIZE                         1
 147 #define MMCI_RENDE_OFFSET                       19
 148 #define MMCI_RENDE_SIZE                         1
 149 #define MMCI_RTOE_OFFSET                        20
 150 #define MMCI_RTOE_SIZE                          1
 151 #define MMCI_DCRCE_OFFSET                       21
 152 #define MMCI_DCRCE_SIZE                         1
 153 #define MMCI_DTOE_OFFSET                        22
 154 #define MMCI_DTOE_SIZE                          1
 155 #define MMCI_OVRE_OFFSET                        30
 156 #define MMCI_OVRE_SIZE                          1
 157 #define MMCI_UNRE_OFFSET                        31
 158 #define MMCI_UNRE_SIZE                          1
 159
 160 /* Constants for DTOMUL */
 161 #define MMCI_DTOMUL_1_CYCLE                     0
 162 #define MMCI_DTOMUL_16_CYCLES                   1
 163 #define MMCI_DTOMUL_128_CYCLES                  2
 164 #define MMCI_DTOMUL_256_CYCLES                  3
 165 #define MMCI_DTOMUL_1024_CYCLES                 4
 166 #define MMCI_DTOMUL_4096_CYCLES                 5
 167 #define MMCI_DTOMUL_65536_CYCLES                6
 168 #define MMCI_DTOMUL_1048576_CYCLES              7
 169
 170 /* Constants for RSPTYP */
 171 #define MMCI_RSPTYP_NO_RESP                     0
 172 #define MMCI_RSPTYP_48_BIT_RESP                 1
 173 #define MMCI_RSPTYP_136_BIT_RESP                2
 174
 175 /* Constants for SPCMD */
 176 #define MMCI_SPCMD_NO_SPEC_CMD                  0
 177 #define MMCI_SPCMD_INIT_CMD                     1
 178 #define MMCI_SPCMD_SYNC_CMD                     2
 179 #define MMCI_SPCMD_INT_CMD                      4
 180 #define MMCI_SPCMD_INT_RESP                     5
 181
 182 /* Constants for TRCMD */
 183 #define MMCI_TRCMD_NO_TRANS                     0
 184 #define MMCI_TRCMD_START_TRANS                  1
 185 #define MMCI_TRCMD_STOP_TRANS                   2
 186
 187 /* Constants for TRTYP */
 188 #define MMCI_TRTYP_BLOCK                        0
 189 #define MMCI_TRTYP_MULTI_BLOCK                  1
 190 #define MMCI_TRTYP_STREAM                       2
 191
 192 /* Bit manipulation macros */
 193 #define MMCI_BIT(name)                                  \
 194         (1 << MMCI_##name##_OFFSET)
 195 #define MMCI_BF(name,value)                             \
 196         (((value) & ((1 << MMCI_##name##_SIZE) - 1))    \
 197          << MMCI_##name##_OFFSET)
 198 #define MMCI_BFEXT(name,value)                          \
 199         (((value) >> MMCI_##name##_OFFSET)\
 200          & ((1 << MMCI_##name##_SIZE) - 1))
 201 #define MMCI_BFINS(name,value,old)                      \
 202         (((old) & ~(((1 << MMCI_##name##_SIZE) - 1)     \
 203                     << MMCI_##name##_OFFSET))           \
 204          | MMCI_BF(name,value))
 205
 206 #endif /* __ATMEL_MCI_H__ */