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 328