include/atmel_mci.h

   1 /*
   2  * Copyright (C) 2005-2006 Atmel Corporation
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22 #ifndef __ATMEL_MCI_H__
  23 #define __ATMEL_MCI_H__
  24
  25 int atmel_mci_init(void *regs);
  26
  27 #ifndef __ASSEMBLY__
  28
  29 /*
  30  * Structure for struct SoC access.
  31  * Names starting with '_' are fillers.
  32  */
  33 typedef struct atmel_mci {
  34         /*      reg     Offset */
  35         u32     cr;     /* 0x00 */
  36         u32     mr;     /* 0x04 */
  37         u32     dtor;   /* 0x08 */
  38         u32     sdcr;   /* 0x0c */
  39         u32     argr;   /* 0x10 */
  40         u32     cmdr;   /* 0x14 */
  41         u32     blkr;   /* 0x18 */
  42         u32     _1c;    /* 0x1c */
  43         u32     rspr;   /* 0x20 */
  44         u32     rspr1;  /* 0x24 */
  45         u32     rspr2;  /* 0x28 */
  46         u32     rspr3;  /* 0x2c */
  47         u32     rdr;    /* 0x30 */
  48         u32     tdr;    /* 0x34 */
  49         u32     _38;    /* 0x38 */
  50         u32     _3c;    /* 0x3c */
  51         u32     sr;     /* 0x40 */
  52         u32     ier;    /* 0x44 */
  53         u32     idr;    /* 0x48 */
  54         u32     imr;    /* 0x4c */
  55         u32     reserved[43];
  56         u32     version;
  57 } atmel_mci_t;
  58
  59 #endif /* __ASSEMBLY__ */
  60
  61 /* Bitfields in CR */
  62 #define MMCI_MCIEN_OFFSET                       0
  63 #define MMCI_MCIEN_SIZE                         1
  64 #define MMCI_MCIDIS_OFFSET                      1
  65 #define MMCI_MCIDIS_SIZE                        1
  66 #define MMCI_PWSEN_OFFSET                       2
  67 #define MMCI_PWSEN_SIZE                         1
  68 #define MMCI_PWSDIS_OFFSET                      3
  69 #define MMCI_PWSDIS_SIZE                        1
  70 #define MMCI_SWRST_OFFSET                       7
  71 #define MMCI_SWRST_SIZE                         1
  72
  73 /* Bitfields in MR */
  74 #define MMCI_CLKDIV_OFFSET                      0
  75 #define MMCI_CLKDIV_SIZE                        8
  76 #define MMCI_PWSDIV_OFFSET                      8
  77 #define MMCI_PWSDIV_SIZE                        3
  78 #define MMCI_RDPROOF_OFFSET                     11
  79 #define MMCI_RDPROOF_SIZE                       1
  80 #define MMCI_WRPROOF_OFFSET                     12
  81 #define MMCI_WRPROOF_SIZE                       1
  82 #define MMCI_PDCPADV_OFFSET                     14
  83 #define MMCI_PDCPADV_SIZE                       1
  84 #define MMCI_PDCMODE_OFFSET                     15
  85 #define MMCI_PDCMODE_SIZE                       1
  86 #define MMCI_BLKLEN_OFFSET                      16
  87 #define MMCI_BLKLEN_SIZE                        16
  88
  89 /* Bitfields in DTOR */
  90 #define MMCI_DTOCYC_OFFSET                      0
  91 #define MMCI_DTOCYC_SIZE                        4
  92 #define MMCI_DTOMUL_OFFSET                      4
  93 #define MMCI_DTOMUL_SIZE                        3
  94
  95 /* Bitfields in SDCR */
  96 #define MMCI_SCDSEL_OFFSET                      0
  97 #define MMCI_SCDSEL_SIZE                        4
  98 #define MMCI_SCDBUS_OFFSET                      7
  99 #define MMCI_SCDBUS_SIZE                        1
 100
 101 /* Bitfields in ARGR */
 102 #define MMCI_ARG_OFFSET                         0
 103 #define MMCI_ARG_SIZE                           32
 104
 105 /* Bitfields in CMDR */
 106 #define MMCI_CMDNB_OFFSET                       0
 107 #define MMCI_CMDNB_SIZE                         6
 108 #define MMCI_RSPTYP_OFFSET                      6
 109 #define MMCI_RSPTYP_SIZE                        2
 110 #define MMCI_SPCMD_OFFSET                       8
 111 #define MMCI_SPCMD_SIZE                         3
 112 #define MMCI_OPDCMD_OFFSET                      11
 113 #define MMCI_OPDCMD_SIZE                        1
 114 #define MMCI_MAXLAT_OFFSET                      12
 115 #define MMCI_MAXLAT_SIZE                        1
 116 #define MMCI_TRCMD_OFFSET                       16
 117 #define MMCI_TRCMD_SIZE                         2
 118 #define MMCI_TRDIR_OFFSET                       18
 119 #define MMCI_TRDIR_SIZE                         1
 120 #define MMCI_TRTYP_OFFSET                       19
 121 #define MMCI_TRTYP_SIZE                         2
 122
 123 /* Bitfields in BLKR */
 124 /* MMCI_BLKLEN_OFFSET/SIZE already defined in MR */
 125 #define MMCI_BCNT_OFFSET                        0
 126 #define MMCI_BCNT_SIZE                  16
 127
 128 /* Bitfields in RSPRx */
 129 #define MMCI_RSP_OFFSET                         0
 130 #define MMCI_RSP_SIZE                           32
 131
 132 /* Bitfields in SR/IER/IDR/IMR */
 133 #define MMCI_CMDRDY_OFFSET                      0
 134 #define MMCI_CMDRDY_SIZE                        1
 135 #define MMCI_RXRDY_OFFSET                       1
 136 #define MMCI_RXRDY_SIZE                         1
 137 #define MMCI_TXRDY_OFFSET                       2
 138 #define MMCI_TXRDY_SIZE                         1
 139 #define MMCI_BLKE_OFFSET                        3
 140 #define MMCI_BLKE_SIZE                          1
 141 #define MMCI_DTIP_OFFSET                        4
 142 #define MMCI_DTIP_SIZE                          1
 143 #define MMCI_NOTBUSY_OFFSET                     5
 144 #define MMCI_NOTBUSY_SIZE                       1
 145 #define MMCI_ENDRX_OFFSET                       6
 146 #define MMCI_ENDRX_SIZE                         1
 147 #define MMCI_ENDTX_OFFSET                       7
 148 #define MMCI_ENDTX_SIZE                         1
 149 #define MMCI_RXBUFF_OFFSET                      14
 150 #define MMCI_RXBUFF_SIZE                        1
 151 #define MMCI_TXBUFE_OFFSET                      15
 152 #define MMCI_TXBUFE_SIZE                        1
 153 #define MMCI_RINDE_OFFSET                       16
 154 #define MMCI_RINDE_SIZE                         1
 155 #define MMCI_RDIRE_OFFSET                       17
 156 #define MMCI_RDIRE_SIZE                         1
 157 #define MMCI_RCRCE_OFFSET                       18
 158 #define MMCI_RCRCE_SIZE                         1
 159 #define MMCI_RENDE_OFFSET                       19
 160 #define MMCI_RENDE_SIZE                         1
 161 #define MMCI_RTOE_OFFSET                        20
 162 #define MMCI_RTOE_SIZE                          1
 163 #define MMCI_DCRCE_OFFSET                       21
 164 #define MMCI_DCRCE_SIZE                         1
 165 #define MMCI_DTOE_OFFSET                        22
 166 #define MMCI_DTOE_SIZE                          1
 167 #define MMCI_OVRE_OFFSET                        30
 168 #define MMCI_OVRE_SIZE                          1
 169 #define MMCI_UNRE_OFFSET                        31
 170 #define MMCI_UNRE_SIZE                          1
 171
 172 /* Constants for DTOMUL */
 173 #define MMCI_DTOMUL_1_CYCLE                     0
 174 #define MMCI_DTOMUL_16_CYCLES                   1
 175 #define MMCI_DTOMUL_128_CYCLES                  2
 176 #define MMCI_DTOMUL_256_CYCLES                  3
 177 #define MMCI_DTOMUL_1024_CYCLES                 4
 178 #define MMCI_DTOMUL_4096_CYCLES                 5
 179 #define MMCI_DTOMUL_65536_CYCLES                6
 180 #define MMCI_DTOMUL_1048576_CYCLES              7
 181
 182 /* Constants for RSPTYP */
 183 #define MMCI_RSPTYP_NO_RESP                     0
 184 #define MMCI_RSPTYP_48_BIT_RESP                 1
 185 #define MMCI_RSPTYP_136_BIT_RESP                2
 186
 187 /* Constants for SPCMD */
 188 #define MMCI_SPCMD_NO_SPEC_CMD                  0
 189 #define MMCI_SPCMD_INIT_CMD                     1
 190 #define MMCI_SPCMD_SYNC_CMD                     2
 191 #define MMCI_SPCMD_INT_CMD                      4
 192 #define MMCI_SPCMD_INT_RESP                     5
 193
 194 /* Constants for TRCMD */
 195 #define MMCI_TRCMD_NO_TRANS                     0
 196 #define MMCI_TRCMD_START_TRANS                  1
 197 #define MMCI_TRCMD_STOP_TRANS                   2
 198
 199 /* Constants for TRTYP */
 200 #define MMCI_TRTYP_BLOCK                        0
 201 #define MMCI_TRTYP_MULTI_BLOCK                  1
 202 #define MMCI_TRTYP_STREAM                       2
 203
 204 /* Bit manipulation macros */
 205 #define MMCI_BIT(name)                                  \
 206         (1 << MMCI_##name##_OFFSET)
 207 #define MMCI_BF(name,value)                             \
 208         (((value) & ((1 << MMCI_##name##_SIZE) - 1))    \
 209          << MMCI_##name##_OFFSET)
 210 #define MMCI_BFEXT(name,value)                          \
 211         (((value) >> MMCI_##name##_OFFSET)\
 212          & ((1 << MMCI_##name##_SIZE) - 1))
 213 #define MMCI_BFINS(name,value,old)                      \
 214         (((old) & ~(((1 << MMCI_##name##_SIZE) - 1)     \
 215                     << MMCI_##name##_OFFSET))           \
 216          | MMCI_BF(name,value))
 217
 218 #endif /* __ATMEL_MCI_H__ */