include/atmel_mci.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2005-2006 Atmel Corporation
   4  */
   5 #ifndef __ATMEL_MCI_H__
   6 #define __ATMEL_MCI_H__
   7
   8 int atmel_mci_init(void *regs);
   9
  10 #ifndef __ASSEMBLY__
  11
  12 /*
  13  * Structure for struct SoC access.
  14  * Names starting with '_' are fillers.
  15  */
  16 typedef struct atmel_mci {
  17         /*      reg     Offset */
  18         u32     cr;     /* 0x00 */
  19         u32     mr;     /* 0x04 */
  20         u32     dtor;   /* 0x08 */
  21         u32     sdcr;   /* 0x0c */
  22         u32     argr;   /* 0x10 */
  23         u32     cmdr;   /* 0x14 */
  24         u32     blkr;   /* 0x18 */
  25         u32     _1c;    /* 0x1c */
  26         u32     rspr;   /* 0x20 */
  27         u32     rspr1;  /* 0x24 */
  28         u32     rspr2;  /* 0x28 */
  29         u32     rspr3;  /* 0x2c */
  30         u32     rdr;    /* 0x30 */
  31         u32     tdr;    /* 0x34 */
  32         u32     _38;    /* 0x38 */
  33         u32     _3c;    /* 0x3c */
  34         u32     sr;     /* 0x40 */
  35         u32     ier;    /* 0x44 */
  36         u32     idr;    /* 0x48 */
  37         u32     imr;    /* 0x4c */
  38         u32     dma;    /* 0x50 */
  39         u32     cfg;    /* 0x54 */
  40         u32     reserved[41];
  41         u32     version;
  42 } atmel_mci_t;
  43
  44 #endif /* __ASSEMBLY__ */
  45
  46 /* Bitfields in CR */
  47 #define MMCI_MCIEN_OFFSET                       0
  48 #define MMCI_MCIEN_SIZE                         1
  49 #define MMCI_MCIDIS_OFFSET                      1
  50 #define MMCI_MCIDIS_SIZE                        1
  51 #define MMCI_PWSEN_OFFSET                       2
  52 #define MMCI_PWSEN_SIZE                         1
  53 #define MMCI_PWSDIS_OFFSET                      3
  54 #define MMCI_PWSDIS_SIZE                        1
  55 #define MMCI_SWRST_OFFSET                       7
  56 #define MMCI_SWRST_SIZE                         1
  57
  58 /* Bitfields in MR */
  59 #define MMCI_CLKDIV_OFFSET                      0
  60 #define MMCI_CLKDIV_SIZE                        8
  61 #define MMCI_PWSDIV_OFFSET                      8
  62 #define MMCI_PWSDIV_SIZE                        3
  63 #define MMCI_RDPROOF_OFFSET                     11
  64 #define MMCI_RDPROOF_SIZE                       1
  65 #define MMCI_WRPROOF_OFFSET                     12
  66 #define MMCI_WRPROOF_SIZE                       1
  67 #define MMCI_PDCPADV_OFFSET                     14
  68 #define MMCI_PDCPADV_SIZE                       1
  69 #define MMCI_PDCMODE_OFFSET                     15
  70 #define MMCI_PDCMODE_SIZE                       1
  71 /* MCI IP version >= 0x500, MR bit 16 used for CLKODD */
  72 #define MMCI_CLKODD_OFFSET                      16
  73 #define MMCI_CLKODD_SIZE                        1
  74 /* MCI IP version < 0x200, MR higher 16bits for BLKLEN */
  75 #define MMCI_BLKLEN_OFFSET                      16
  76 #define MMCI_BLKLEN_SIZE                        16
  77
  78 /* Bitfields in DTOR */
  79 #define MMCI_DTOCYC_OFFSET                      0
  80 #define MMCI_DTOCYC_SIZE                        4
  81 #define MMCI_DTOMUL_OFFSET                      4
  82 #define MMCI_DTOMUL_SIZE                        3
  83
  84 /* Bitfields in SDCR */
  85 #define MMCI_SCDSEL_OFFSET                      0
  86 #define MMCI_SCDSEL_SIZE                        4
  87 #define MMCI_SCDBUS_OFFSET                      7
  88 #define MMCI_SCDBUS_SIZE                        1
  89
  90 /* Bitfields in ARGR */
  91 #define MMCI_ARG_OFFSET                         0
  92 #define MMCI_ARG_SIZE                           32
  93
  94 /* Bitfields in CMDR */
  95 #define MMCI_CMDNB_OFFSET                       0
  96 #define MMCI_CMDNB_SIZE                         6
  97 #define MMCI_RSPTYP_OFFSET                      6
  98 #define MMCI_RSPTYP_SIZE                        2
  99 #define MMCI_SPCMD_OFFSET                       8
 100 #define MMCI_SPCMD_SIZE                         3
 101 #define MMCI_OPDCMD_OFFSET                      11
 102 #define MMCI_OPDCMD_SIZE                        1
 103 #define MMCI_MAXLAT_OFFSET                      12
 104 #define MMCI_MAXLAT_SIZE                        1
 105 #define MMCI_TRCMD_OFFSET                       16
 106 #define MMCI_TRCMD_SIZE                         2
 107 #define MMCI_TRDIR_OFFSET                       18
 108 #define MMCI_TRDIR_SIZE                         1
 109 #define MMCI_TRTYP_OFFSET                       19
 110 #define MMCI_TRTYP_SIZE                         2
 111
 112 /* Bitfields in BLKR */
 113 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
 114 #define MMCI_BCNT_OFFSET                        0
 115 #define MMCI_BCNT_SIZE                  16
 116
 117 /* Bitfields in RSPRx */
 118 #define MMCI_RSP_OFFSET                         0
 119 #define MMCI_RSP_SIZE                           32
 120
 121 /* Bitfields in SR/IER/IDR/IMR */
 122 #define MMCI_CMDRDY_OFFSET                      0
 123 #define MMCI_CMDRDY_SIZE                        1
 124 #define MMCI_RXRDY_OFFSET                       1
 125 #define MMCI_RXRDY_SIZE                         1
 126 #define MMCI_TXRDY_OFFSET                       2
 127 #define MMCI_TXRDY_SIZE                         1
 128 #define MMCI_BLKE_OFFSET                        3
 129 #define MMCI_BLKE_SIZE                          1
 130 #define MMCI_DTIP_OFFSET                        4
 131 #define MMCI_DTIP_SIZE                          1
 132 #define MMCI_NOTBUSY_OFFSET                     5
 133 #define MMCI_NOTBUSY_SIZE                       1
 134 #define MMCI_ENDRX_OFFSET                       6
 135 #define MMCI_ENDRX_SIZE                         1
 136 #define MMCI_ENDTX_OFFSET                       7
 137 #define MMCI_ENDTX_SIZE                         1
 138 #define MMCI_RXBUFF_OFFSET                      14
 139 #define MMCI_RXBUFF_SIZE                        1
 140 #define MMCI_TXBUFE_OFFSET                      15
 141 #define MMCI_TXBUFE_SIZE                        1
 142 #define MMCI_RINDE_OFFSET                       16
 143 #define MMCI_RINDE_SIZE                         1
 144 #define MMCI_RDIRE_OFFSET                       17
 145 #define MMCI_RDIRE_SIZE                         1
 146 #define MMCI_RCRCE_OFFSET                       18
 147 #define MMCI_RCRCE_SIZE                         1
 148 #define MMCI_RENDE_OFFSET                       19
 149 #define MMCI_RENDE_SIZE                         1
 150 #define MMCI_RTOE_OFFSET                        20
 151 #define MMCI_RTOE_SIZE                          1
 152 #define MMCI_DCRCE_OFFSET                       21
 153 #define MMCI_DCRCE_SIZE                         1
 154 #define MMCI_DTOE_OFFSET                        22
 155 #define MMCI_DTOE_SIZE                          1
 156 #define MMCI_OVRE_OFFSET                        30
 157 #define MMCI_OVRE_SIZE                          1
 158 #define MMCI_UNRE_OFFSET                        31
 159 #define MMCI_UNRE_SIZE                          1
 160
 161 /* Constants for DTOMUL */
 162 #define MMCI_DTOMUL_1_CYCLE                     0
 163 #define MMCI_DTOMUL_16_CYCLES                   1
 164 #define MMCI_DTOMUL_128_CYCLES                  2
 165 #define MMCI_DTOMUL_256_CYCLES                  3
 166 #define MMCI_DTOMUL_1024_CYCLES                 4
 167 #define MMCI_DTOMUL_4096_CYCLES                 5
 168 #define MMCI_DTOMUL_65536_CYCLES                6
 169 #define MMCI_DTOMUL_1048576_CYCLES              7
 170
 171 /* Constants for RSPTYP */
 172 #define MMCI_RSPTYP_NO_RESP                     0
 173 #define MMCI_RSPTYP_48_BIT_RESP                 1
 174 #define MMCI_RSPTYP_136_BIT_RESP                2
 175
 176 /* Constants for SPCMD */
 177 #define MMCI_SPCMD_NO_SPEC_CMD                  0
 178 #define MMCI_SPCMD_INIT_CMD                     1
 179 #define MMCI_SPCMD_SYNC_CMD                     2
 180 #define MMCI_SPCMD_INT_CMD                      4
 181 #define MMCI_SPCMD_INT_RESP                     5
 182
 183 /* Constants for TRCMD */
 184 #define MMCI_TRCMD_NO_TRANS                     0
 185 #define MMCI_TRCMD_START_TRANS                  1
 186 #define MMCI_TRCMD_STOP_TRANS                   2
 187
 188 /* Constants for TRTYP */
 189 #define MMCI_TRTYP_BLOCK                        0
 190 #define MMCI_TRTYP_MULTI_BLOCK                  1
 191 #define MMCI_TRTYP_STREAM                       2
 192
 193 /* Bitfields in CFG */
 194 #define MMCI_FIFOMODE_OFFSET                    0
 195 #define MMCI_FIFOMODE_SIZE                      1
 196 #define MMCI_FERRCTRL_OFFSET                    4
 197 #define MMCI_FERRCTRL_SIZE                      1
 198 #define MMCI_HSMODE_OFFSET                      8
 199 #define MMCI_HSMODE_SIZE                        1
 200 #define MMCI_LSYNC_OFFSET                       12
 201 #define MMCI_LSYNC_SIZE                         1
 202
 203 /* Bit manipulation macros */
 204 #define MMCI_BIT(name)                                  \
 205         (1 << MMCI_##name##_OFFSET)
 206 #define MMCI_BF(name,value)                             \
 207         (((value) & ((1 << MMCI_##name##_SIZE) - 1))    \
 208          << MMCI_##name##_OFFSET)
 209 #define MMCI_BFEXT(name,value)                          \
 210         (((value) >> MMCI_##name##_OFFSET)\
 211          & ((1 << MMCI_##name##_SIZE) - 1))
 212 #define MMCI_BFINS(name,value,old)                      \
 213         (((old) & ~(((1 << MMCI_##name##_SIZE) - 1)     \
 214                     << MMCI_##name##_OFFSET))           \
 215          | MMCI_BF(name,value))
 216
 217 #endif /* __ATMEL_MCI_H__ */