hw/sd/sdhci-internal.h

   1 /*
   2  * SD Association Host Standard Specification v2.0 controller emulation
   3  *
   4  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   5  * Mitsyanko Igor <i.mitsyanko@samsung.com>
   6  * Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
   7  *
   8  * Based on MMC controller for Samsung S5PC1xx-based board emulation
   9  * by Alexey Merkulov and Vladimir Monakhov.
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License as published by the
  13  * Free Software Foundation; either version 2 of the License, or (at your
  14  * option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  19  * See the GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along
  22  * with this program; if not, see <http://www.gnu.org/licenses/>.
  23  */
  24 #ifndef SDHCI_INTERNAL_H
  25 #define SDHCI_INTERNAL_H
  26
  27 #include "hw/registerfields.h"
  28
  29 /* R/W SDMA System Address register 0x0 */
  30 #define SDHC_SYSAD                     0x00
  31
  32 /* R/W Host DMA Buffer Boundary and Transfer Block Size Register 0x0 */
  33 #define SDHC_BLKSIZE                   0x04
  34
  35 /* R/W Blocks count for current transfer 0x0 */
  36 #define SDHC_BLKCNT                    0x06
  37
  38 /* R/W Command Argument Register 0x0 */
  39 #define SDHC_ARGUMENT                  0x08
  40
  41 /* R/W Transfer Mode Setting Register 0x0 */
  42 #define SDHC_TRNMOD                    0x0C
  43 #define SDHC_TRNS_DMA                  0x0001
  44 #define SDHC_TRNS_BLK_CNT_EN           0x0002
  45 #define SDHC_TRNS_ACMD12               0x0004
  46 #define SDHC_TRNS_ACMD23               0x0008 /* since v3 */
  47 #define SDHC_TRNS_READ                 0x0010
  48 #define SDHC_TRNS_MULTI                0x0020
  49 #define SDHC_TRNMOD_MASK               0x0037
  50
  51 /* R/W Command Register 0x0 */
  52 #define SDHC_CMDREG                    0x0E
  53 #define SDHC_CMD_RSP_WITH_BUSY         (3 << 0)
  54 #define SDHC_CMD_DATA_PRESENT          (1 << 5)
  55 #define SDHC_CMD_SUSPEND               (1 << 6)
  56 #define SDHC_CMD_RESUME                (1 << 7)
  57 #define SDHC_CMD_ABORT                 ((1 << 6)|(1 << 7))
  58 #define SDHC_CMD_TYPE_MASK             ((1 << 6)|(1 << 7))
  59 #define SDHC_COMMAND_TYPE(x)           ((x) & SDHC_CMD_TYPE_MASK)
  60
  61 /* ROC Response Register 0 0x0 */
  62 #define SDHC_RSPREG0                   0x10
  63 /* ROC Response Register 1 0x0 */
  64 #define SDHC_RSPREG1                   0x14
  65 /* ROC Response Register 2 0x0 */
  66 #define SDHC_RSPREG2                   0x18
  67 /* ROC Response Register 3 0x0 */
  68 #define SDHC_RSPREG3                   0x1C
  69
  70 /* R/W Buffer Data Register 0x0 */
  71 #define SDHC_BDATA                     0x20
  72
  73 /* R/ROC Present State Register 0x000A0000 */
  74 #define SDHC_PRNSTS                    0x24
  75 #define SDHC_CMD_INHIBIT               0x00000001
  76 #define SDHC_DATA_INHIBIT              0x00000002
  77 #define SDHC_DAT_LINE_ACTIVE           0x00000004
  78 #define SDHC_IMX_CLOCK_GATE_OFF        0x00000080
  79 #define SDHC_DOING_WRITE               0x00000100
  80 #define SDHC_DOING_READ                0x00000200
  81 #define SDHC_SPACE_AVAILABLE           0x00000400
  82 #define SDHC_DATA_AVAILABLE            0x00000800
  83 #define SDHC_CARD_PRESENT              0x00010000
  84 #define SDHC_CARD_DETECT               0x00040000
  85 #define SDHC_WRITE_PROTECT             0x00080000
  86 FIELD(SDHC_PRNSTS, DAT_LVL,            20, 4);
  87 FIELD(SDHC_PRNSTS, CMD_LVL,            24, 1);
  88 #define TRANSFERRING_DATA(x)           \
  89     ((x) & (SDHC_DOING_READ | SDHC_DOING_WRITE))
  90
  91 /* R/W Host control Register 0x0 */
  92 #define SDHC_HOSTCTL                   0x28
  93 #define SDHC_CTRL_LED                  0x01
  94 #define SDHC_CTRL_DATATRANSFERWIDTH    0x02 /* SD mode only */
  95 #define SDHC_CTRL_HIGH_SPEED           0x04
  96 #define SDHC_CTRL_DMA_CHECK_MASK       0x18
  97 #define SDHC_CTRL_SDMA                 0x00
  98 #define SDHC_CTRL_ADMA1_32             0x08 /* NOT ALLOWED since v2 */
  99 #define SDHC_CTRL_ADMA2_32             0x10
 100 #define SDHC_CTRL_ADMA2_64             0x18
 101 #define SDHC_DMA_TYPE(x)               ((x) & SDHC_CTRL_DMA_CHECK_MASK)
 102 #define SDHC_CTRL_4BITBUS              0x02
 103 #define SDHC_CTRL_8BITBUS              0x20
 104 #define SDHC_CTRL_CDTEST_INS           0x40
 105 #define SDHC_CTRL_CDTEST_EN            0x80
 106
 107 /* R/W Power Control Register 0x0 */
 108 #define SDHC_PWRCON                    0x29
 109 #define SDHC_POWER_ON                  (1 << 0)
 110 FIELD(SDHC_PWRCON, BUS_VOLTAGE,        1, 3);
 111
 112 /* R/W Block Gap Control Register 0x0 */
 113 #define SDHC_BLKGAP                    0x2A
 114 #define SDHC_STOP_AT_GAP_REQ           0x01
 115 #define SDHC_CONTINUE_REQ              0x02
 116
 117 /* R/W WakeUp Control Register 0x0 */
 118 #define SDHC_WAKCON                    0x2B
 119 #define SDHC_WKUP_ON_INS               (1 << 1)
 120 #define SDHC_WKUP_ON_RMV               (1 << 2)
 121
 122 /* CLKCON */
 123 #define SDHC_CLKCON                    0x2C
 124 #define SDHC_CLOCK_INT_STABLE          0x0002
 125 #define SDHC_CLOCK_INT_EN              0x0001
 126 #define SDHC_CLOCK_SDCLK_EN            (1 << 2)
 127 #define SDHC_CLOCK_CHK_MASK            0x0007
 128 #define SDHC_CLOCK_IS_ON(x)            \
 129     (((x) & SDHC_CLOCK_CHK_MASK) == SDHC_CLOCK_CHK_MASK)
 130
 131 /* R/W Timeout Control Register 0x0 */
 132 #define SDHC_TIMEOUTCON                0x2E
 133 FIELD(SDHC_TIMEOUTCON, COUNTER,        0, 4);
 134
 135 /* R/W Software Reset Register 0x0 */
 136 #define SDHC_SWRST                     0x2F
 137 #define SDHC_RESET_ALL                 0x01
 138 #define SDHC_RESET_CMD                 0x02
 139 #define SDHC_RESET_DATA                0x04
 140
 141 /* ROC/RW1C Normal Interrupt Status Register 0x0 */
 142 #define SDHC_NORINTSTS                 0x30
 143 #define SDHC_NIS_ERR                   0x8000
 144 #define SDHC_NIS_CMDCMP                0x0001
 145 #define SDHC_NIS_TRSCMP                0x0002
 146 #define SDHC_NIS_BLKGAP                0x0004
 147 #define SDHC_NIS_DMA                   0x0008
 148 #define SDHC_NIS_WBUFRDY               0x0010
 149 #define SDHC_NIS_RBUFRDY               0x0020
 150 #define SDHC_NIS_INSERT                0x0040
 151 #define SDHC_NIS_REMOVE                0x0080
 152 #define SDHC_NIS_CARDINT               0x0100
 153
 154 /* ROC/RW1C Error Interrupt Status Register 0x0 */
 155 #define SDHC_ERRINTSTS                 0x32
 156 #define SDHC_EIS_CMDTIMEOUT            0x0001
 157 #define SDHC_EIS_BLKGAP                0x0004
 158 #define SDHC_EIS_CMDIDX                0x0008
 159 #define SDHC_EIS_CMD12ERR              0x0100
 160 #define SDHC_EIS_ADMAERR               0x0200
 161
 162 /* R/W Normal Interrupt Status Enable Register 0x0 */
 163 #define SDHC_NORINTSTSEN               0x34
 164 #define SDHC_NISEN_CMDCMP              0x0001
 165 #define SDHC_NISEN_TRSCMP              0x0002
 166 #define SDHC_NISEN_DMA                 0x0008
 167 #define SDHC_NISEN_WBUFRDY             0x0010
 168 #define SDHC_NISEN_RBUFRDY             0x0020
 169 #define SDHC_NISEN_INSERT              0x0040
 170 #define SDHC_NISEN_REMOVE              0x0080
 171 #define SDHC_NISEN_CARDINT             0x0100
 172
 173 /* R/W Error Interrupt Status Enable Register 0x0 */
 174 #define SDHC_ERRINTSTSEN               0x36
 175 #define SDHC_EISEN_CMDTIMEOUT          0x0001
 176 #define SDHC_EISEN_BLKGAP              0x0004
 177 #define SDHC_EISEN_CMDIDX              0x0008
 178 #define SDHC_EISEN_ADMAERR             0x0200
 179
 180 /* R/W Normal Interrupt Signal Enable Register 0x0 */
 181 #define SDHC_NORINTSIGEN               0x38
 182 #define SDHC_NORINTSIG_INSERT          (1 << 6)
 183 #define SDHC_NORINTSIG_REMOVE          (1 << 7)
 184
 185 /* R/W Error Interrupt Signal Enable Register 0x0 */
 186 #define SDHC_ERRINTSIGEN               0x3A
 187
 188 /* ROC Auto CMD12 error status register 0x0 */
 189 #define SDHC_ACMD12ERRSTS              0x3C
 190 FIELD(SDHC_ACMD12ERRSTS, TIMEOUT_ERR,  1, 1);
 191 FIELD(SDHC_ACMD12ERRSTS, CRC_ERR,      2, 1);
 192 FIELD(SDHC_ACMD12ERRSTS, INDEX_ERR,    4, 1);
 193
 194 /* Host Control Register 2 (since v3) */
 195 #define SDHC_HOSTCTL2                  0x3E
 196 FIELD(SDHC_HOSTCTL2, UHS_MODE_SEL,     0, 3);
 197 FIELD(SDHC_HOSTCTL2, V18_ENA,          3, 1); /* UHS-I only */
 198 FIELD(SDHC_HOSTCTL2, DRIVER_STRENGTH,  4, 2); /* UHS-I only */
 199 FIELD(SDHC_HOSTCTL2, EXECUTE_TUNING,   6, 1); /* UHS-I only */
 200 FIELD(SDHC_HOSTCTL2, SAMPLING_CLKSEL,  7, 1); /* UHS-I only */
 201 FIELD(SDHC_HOSTCTL2, UHS_II_ENA,       8, 1); /* since v4 */
 202 FIELD(SDHC_HOSTCTL2, ADMA2_LENGTH,    10, 1); /* since v4 */
 203 FIELD(SDHC_HOSTCTL2, CMD23_ENA,       11, 1); /* since v4 */
 204 FIELD(SDHC_HOSTCTL2, VERSION4,        12, 1); /* since v4 */
 205 FIELD(SDHC_HOSTCTL2, ASYNC_INT,       14, 1);
 206 FIELD(SDHC_HOSTCTL2, PRESET_ENA,      15, 1);
 207
 208 /* HWInit Capabilities Register 0x05E80080 */
 209 #define SDHC_CAPAB                     0x40
 210 FIELD(SDHC_CAPAB, TOCLKFREQ,           0, 6);
 211 FIELD(SDHC_CAPAB, TOUNIT,              7, 1);
 212 FIELD(SDHC_CAPAB, BASECLKFREQ,         8, 8);
 213 FIELD(SDHC_CAPAB, MAXBLOCKLENGTH,     16, 2);
 214 FIELD(SDHC_CAPAB, EMBEDDED_8BIT,      18, 1); /* since v3 */
 215 FIELD(SDHC_CAPAB, ADMA2,              19, 1); /* since v2 */
 216 FIELD(SDHC_CAPAB, ADMA1,              20, 1); /* v1 only? */
 217 FIELD(SDHC_CAPAB, HIGHSPEED,          21, 1);
 218 FIELD(SDHC_CAPAB, SDMA,               22, 1);
 219 FIELD(SDHC_CAPAB, SUSPRESUME,         23, 1);
 220 FIELD(SDHC_CAPAB, V33,                24, 1);
 221 FIELD(SDHC_CAPAB, V30,                25, 1);
 222 FIELD(SDHC_CAPAB, V18,                26, 1);
 223 FIELD(SDHC_CAPAB, BUS64BIT_V4,        27, 1); /* since v4.10 */
 224 FIELD(SDHC_CAPAB, BUS64BIT,           28, 1); /* since v2 */
 225 FIELD(SDHC_CAPAB, ASYNC_INT,          29, 1); /* since v3 */
 226 FIELD(SDHC_CAPAB, SLOT_TYPE,          30, 2); /* since v3 */
 227 FIELD(SDHC_CAPAB, BUS_SPEED,          32, 3); /* since v3 */
 228 FIELD(SDHC_CAPAB, UHS_II,             35, 8); /* since v4.20 */
 229 FIELD(SDHC_CAPAB, DRIVER_STRENGTH,    36, 3); /* since v3 */
 230 FIELD(SDHC_CAPAB, DRIVER_TYPE_A,      36, 1); /* since v3 */
 231 FIELD(SDHC_CAPAB, DRIVER_TYPE_C,      37, 1); /* since v3 */
 232 FIELD(SDHC_CAPAB, DRIVER_TYPE_D,      38, 1); /* since v3 */
 233 FIELD(SDHC_CAPAB, TIMER_RETUNING,     40, 4); /* since v3 */
 234 FIELD(SDHC_CAPAB, SDR50_TUNING,       45, 1); /* since v3 */
 235 FIELD(SDHC_CAPAB, RETUNING_MODE,      46, 2); /* since v3 */
 236 FIELD(SDHC_CAPAB, CLOCK_MULT,         48, 8); /* since v3 */
 237 FIELD(SDHC_CAPAB, ADMA3,              59, 1); /* since v4.20 */
 238 FIELD(SDHC_CAPAB, V18_VDD2,           60, 1); /* since v4.20 */
 239
 240 /* HWInit Maximum Current Capabilities Register 0x0 */
 241 #define SDHC_MAXCURR                   0x48
 242 FIELD(SDHC_MAXCURR, V33_VDD1,          0, 8);
 243 FIELD(SDHC_MAXCURR, V30_VDD1,          8, 8);
 244 FIELD(SDHC_MAXCURR, V18_VDD1,         16, 8);
 245 FIELD(SDHC_MAXCURR, V18_VDD2,         32, 8); /* since v4.20 */
 246
 247 /* W Force Event Auto CMD12 Error Interrupt Register 0x0000 */
 248 #define SDHC_FEAER                     0x50
 249 /* W Force Event Error Interrupt Register Error Interrupt 0x0000 */
 250 #define SDHC_FEERR                     0x52
 251
 252 /* R/W ADMA Error Status Register 0x00 */
 253 #define SDHC_ADMAERR                   0x54
 254 #define SDHC_ADMAERR_LENGTH_MISMATCH   (1 << 2)
 255 #define SDHC_ADMAERR_STATE_ST_STOP     (0 << 0)
 256 #define SDHC_ADMAERR_STATE_ST_FDS      (1 << 0)
 257 #define SDHC_ADMAERR_STATE_ST_TFR      (3 << 0)
 258 #define SDHC_ADMAERR_STATE_MASK        (3 << 0)
 259
 260 /* R/W ADMA System Address Register 0x00 */
 261 #define SDHC_ADMASYSADDR               0x58
 262 #define SDHC_ADMA_ATTR_SET_LEN         (1 << 4)
 263 #define SDHC_ADMA_ATTR_ACT_TRAN        (1 << 5)
 264 #define SDHC_ADMA_ATTR_ACT_LINK        (3 << 4)
 265 #define SDHC_ADMA_ATTR_INT             (1 << 2)
 266 #define SDHC_ADMA_ATTR_END             (1 << 1)
 267 #define SDHC_ADMA_ATTR_VALID           (1 << 0)
 268 #define SDHC_ADMA_ATTR_ACT_MASK        ((1 << 4)|(1 << 5))
 269
 270 /* Slot interrupt status */
 271 #define SDHC_SLOT_INT_STATUS            0xFC
 272
 273 /* HWInit Host Controller Version Register */
 274 #define SDHC_HCVER                      0xFE
 275 #define SDHC_HCVER_VENDOR               0x24
 276
 277 #define SDHC_REGISTERS_MAP_SIZE         0x100
 278 #define SDHC_INSERTION_DELAY            (NANOSECONDS_PER_SECOND)
 279 #define SDHC_TRANSFER_DELAY             100
 280 #define SDHC_ADMA_DESCS_PER_DELAY       5
 281 #define SDHC_CMD_RESPONSE               (3 << 0)
 282
 283 enum {
 284     sdhc_not_stopped = 0, /* normal SDHC state */
 285     sdhc_gap_read   = 1,  /* SDHC stopped at block gap during read operation */
 286     sdhc_gap_write  = 2   /* SDHC stopped at block gap during write operation */
 287 };
 288
 289 extern const VMStateDescription sdhci_vmstate;
 290
 291 /*
 292  * Default SD/MMC host controller features information, which will be
 293  * presented in CAPABILITIES register of generic SD host controller at reset.
 294  *
 295  * support:
 296  * - 3.3v and 1.8v voltages
 297  * - SDMA/ADMA1/ADMA2
 298  * - high-speed
 299  * max host controller R/W buffers size: 512B
 300  * max clock frequency for SDclock: 52 MHz
 301  * timeout clock frequency: 52 MHz
 302  *
 303  * does not support:
 304  * - 3.0v voltage
 305  * - 64-bit system bus
 306  * - suspend/resume
 307  */
 308 #define SDHC_CAPAB_REG_DEFAULT 0x057834b4
 309
 310 #define DEFINE_SDHCI_COMMON_PROPERTIES(_state) \
 311     DEFINE_PROP_UINT8("endianness", _state, endianness, DEVICE_LITTLE_ENDIAN), \
 312     DEFINE_PROP_UINT8("sd-spec-version", _state, sd_spec_version, 2), \
 313     DEFINE_PROP_UINT8("uhs", _state, uhs_mode, UHS_NOT_SUPPORTED), \
 314     DEFINE_PROP_UINT8("vendor", _state, vendor, SDHCI_VENDOR_NONE), \
 315     \
 316     /* Capabilities registers provide information on supported
 317      * features of this specific host controller implementation */ \
 318     DEFINE_PROP_UINT64("capareg", _state, capareg, SDHC_CAPAB_REG_DEFAULT), \
 319     DEFINE_PROP_UINT64("maxcurr", _state, maxcurr, 0)
 320
 321 void sdhci_initfn(SDHCIState *s);
 322 void sdhci_uninitfn(SDHCIState *s);
 323 void sdhci_common_realize(SDHCIState *s, Error **errp);
 324 void sdhci_common_unrealize(SDHCIState *s);
 325 void sdhci_common_class_init(ObjectClass *klass, void *data);
 326
 327 #endif