1/* 2 * Header for MultiMediaCard (MMC) 3 * 4 * Copyright 2002 Hewlett-Packard Company 5 * 6 * Use consistent with the GNU GPL is permitted, 7 * provided that this copyright notice is 8 * preserved in its entirety in all copies and derived works. 9 * 10 * HEWLETT-PACKARD COMPANY MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, 11 * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS 12 * FITNESS FOR ANY PARTICULAR PURPOSE. 13 * 14 * Many thanks to Alessandro Rubini and Jonathan Corbet! 15 * 16 * Based strongly on code by: 17 * 18 * Author: Yong-iL Joh <tolkien@mizi.com> 19 * 20 * Author: Andrew Christian 21 * 15 May 2002 22 */ 23 24#ifndef LINUX_MMC_MMC_H 25#define LINUX_MMC_MMC_H 26 27/* Standard MMC commands (4.1) type argument response */ 28 /* class 1 */ 29#define MMC_GO_IDLE_STATE 0 /* bc */ 30#define MMC_SEND_OP_COND 1 /* bcr [31:0] OCR R3 */ 31#define MMC_ALL_SEND_CID 2 /* bcr R2 */ 32#define MMC_SET_RELATIVE_ADDR 3 /* ac [31:16] RCA R1 */ 33#define MMC_SET_DSR 4 /* bc [31:16] RCA */ 34#define MMC_SLEEP_AWAKE 5 /* ac [31:16] RCA 15:flg R1b */ 35#define MMC_SWITCH 6 /* ac [31:0] See below R1b */ 36#define MMC_SELECT_CARD 7 /* ac [31:16] RCA R1 */ 37#define MMC_SEND_EXT_CSD 8 /* adtc R1 */ 38#define MMC_SEND_CSD 9 /* ac [31:16] RCA R2 */ 39#define MMC_SEND_CID 10 /* ac [31:16] RCA R2 */ 40#define MMC_READ_DAT_UNTIL_STOP 11 /* adtc [31:0] dadr R1 */ 41#define MMC_STOP_TRANSMISSION 12 /* ac R1b */ 42#define MMC_SEND_STATUS 13 /* ac [31:16] RCA R1 */ 43#define MMC_BUS_TEST_R 14 /* adtc R1 */ 44#define MMC_GO_INACTIVE_STATE 15 /* ac [31:16] RCA */ 45#define MMC_BUS_TEST_W 19 /* adtc R1 */ 46#define MMC_SPI_READ_OCR 58 /* spi spi_R3 */ 47#define MMC_SPI_CRC_ON_OFF 59 /* spi [0:0] flag spi_R1 */ 48 49 /* class 2 */ 50#define MMC_SET_BLOCKLEN 16 /* ac [31:0] block len R1 */ 51#define MMC_READ_SINGLE_BLOCK 17 /* adtc [31:0] data addr R1 */ 52#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */ 53#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */ 54#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */ 55 56 /* class 3 */ 57#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */ 58 59 /* class 4 */ 60#define MMC_SET_BLOCK_COUNT 23 /* adtc [31:0] data addr R1 */ 61#define MMC_WRITE_BLOCK 24 /* adtc [31:0] data addr R1 */ 62#define MMC_WRITE_MULTIPLE_BLOCK 25 /* adtc R1 */ 63#define MMC_PROGRAM_CID 26 /* adtc R1 */ 64#define MMC_PROGRAM_CSD 27 /* adtc R1 */ 65 66 /* class 6 */ 67#define MMC_SET_WRITE_PROT 28 /* ac [31:0] data addr R1b */ 68#define MMC_CLR_WRITE_PROT 29 /* ac [31:0] data addr R1b */ 69#define MMC_SEND_WRITE_PROT 30 /* adtc [31:0] wpdata addr R1 */ 70 71 /* class 5 */ 72#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */ 73#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */ 74#define MMC_ERASE 38 /* ac R1b */ 75 76 /* class 9 */ 77#define MMC_FAST_IO 39 /* ac <Complex> R4 */ 78#define MMC_GO_IRQ_STATE 40 /* bcr R5 */ 79 80 /* class 7 */ 81#define MMC_LOCK_UNLOCK 42 /* adtc R1b */ 82 83 /* class 8 */ 84#define MMC_APP_CMD 55 /* ac [31:16] RCA R1 */ 85#define MMC_GEN_CMD 56 /* adtc [0] RD/WR R1 */ 86 87static inline bool mmc_op_multi(u32 opcode) 88{ 89 return opcode == MMC_WRITE_MULTIPLE_BLOCK || 90 opcode == MMC_READ_MULTIPLE_BLOCK; 91} 92 93/* 94 * MMC_SWITCH argument format: 95 * 96 * [31:26] Always 0 97 * [25:24] Access Mode 98 * [23:16] Location of target Byte in EXT_CSD 99 * [15:08] Value Byte 100 * [07:03] Always 0 101 * [02:00] Command Set 102 */ 103 104/* 105 MMC status in R1, for native mode (SPI bits are different) 106 Type 107 e : error bit 108 s : status bit 109 r : detected and set for the actual command response 110 x : detected and set during command execution. the host must poll 111 the card by sending status command in order to read these bits. 112 Clear condition 113 a : according to the card state 114 b : always related to the previous command. Reception of 115 a valid command will clear it (with a delay of one command) 116 c : clear by read 117 */ 118 119#define R1_OUT_OF_RANGE (1 << 31) /* er, c */ 120#define R1_ADDRESS_ERROR (1 << 30) /* erx, c */ 121#define R1_BLOCK_LEN_ERROR (1 << 29) /* er, c */ 122#define R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */ 123#define R1_ERASE_PARAM (1 << 27) /* ex, c */ 124#define R1_WP_VIOLATION (1 << 26) /* erx, c */ 125#define R1_CARD_IS_LOCKED (1 << 25) /* sx, a */ 126#define R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */ 127#define R1_COM_CRC_ERROR (1 << 23) /* er, b */ 128#define R1_ILLEGAL_COMMAND (1 << 22) /* er, b */ 129#define R1_CARD_ECC_FAILED (1 << 21) /* ex, c */ 130#define R1_CC_ERROR (1 << 20) /* erx, c */ 131#define R1_ERROR (1 << 19) /* erx, c */ 132#define R1_UNDERRUN (1 << 18) /* ex, c */ 133#define R1_OVERRUN (1 << 17) /* ex, c */ 134#define R1_CID_CSD_OVERWRITE (1 << 16) /* erx, c, CID/CSD overwrite */ 135#define R1_WP_ERASE_SKIP (1 << 15) /* sx, c */ 136#define R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */ 137#define R1_ERASE_RESET (1 << 13) /* sr, c */ 138#define R1_STATUS(x) (x & 0xFFFFE000) 139#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */ 140#define R1_READY_FOR_DATA (1 << 8) /* sx, a */ 141#define R1_SWITCH_ERROR (1 << 7) /* sx, c */ 142#define R1_APP_CMD (1 << 5) /* sr, c */ 143 144#define R1_STATE_IDLE 0 145#define R1_STATE_READY 1 146#define R1_STATE_IDENT 2 147#define R1_STATE_STBY 3 148#define R1_STATE_TRAN 4 149#define R1_STATE_DATA 5 150#define R1_STATE_RCV 6 151#define R1_STATE_PRG 7 152#define R1_STATE_DIS 8 153 154/* 155 * MMC/SD in SPI mode reports R1 status always, and R2 for SEND_STATUS 156 * R1 is the low order byte; R2 is the next highest byte, when present. 157 */ 158#define R1_SPI_IDLE (1 << 0) 159#define R1_SPI_ERASE_RESET (1 << 1) 160#define R1_SPI_ILLEGAL_COMMAND (1 << 2) 161#define R1_SPI_COM_CRC (1 << 3) 162#define R1_SPI_ERASE_SEQ (1 << 4) 163#define R1_SPI_ADDRESS (1 << 5) 164#define R1_SPI_PARAMETER (1 << 6) 165/* R1 bit 7 is always zero */ 166#define R2_SPI_CARD_LOCKED (1 << 8) 167#define R2_SPI_WP_ERASE_SKIP (1 << 9) /* or lock/unlock fail */ 168#define R2_SPI_LOCK_UNLOCK_FAIL R2_SPI_WP_ERASE_SKIP 169#define R2_SPI_ERROR (1 << 10) 170#define R2_SPI_CC_ERROR (1 << 11) 171#define R2_SPI_CARD_ECC_ERROR (1 << 12) 172#define R2_SPI_WP_VIOLATION (1 << 13) 173#define R2_SPI_ERASE_PARAM (1 << 14) 174#define R2_SPI_OUT_OF_RANGE (1 << 15) /* or CSD overwrite */ 175#define R2_SPI_CSD_OVERWRITE R2_SPI_OUT_OF_RANGE 176 177/* These are unpacked versions of the actual responses */ 178 179struct _mmc_csd { 180 u8 csd_structure; 181 u8 spec_vers; 182 u8 taac; 183 u8 nsac; 184 u8 tran_speed; 185 u16 ccc; 186 u8 read_bl_len; 187 u8 read_bl_partial; 188 u8 write_blk_misalign; 189 u8 read_blk_misalign; 190 u8 dsr_imp; 191 u16 c_size; 192 u8 vdd_r_curr_min; 193 u8 vdd_r_curr_max; 194 u8 vdd_w_curr_min; 195 u8 vdd_w_curr_max; 196 u8 c_size_mult; 197 union { 198 struct { /* MMC system specification version 3.1 */ 199 u8 erase_grp_size; 200 u8 erase_grp_mult; 201 } v31; 202 struct { /* MMC system specification version 2.2 */ 203 u8 sector_size; 204 u8 erase_grp_size; 205 } v22; 206 } erase; 207 u8 wp_grp_size; 208 u8 wp_grp_enable; 209 u8 default_ecc; 210 u8 r2w_factor; 211 u8 write_bl_len; 212 u8 write_bl_partial; 213 u8 file_format_grp; 214 u8 copy; 215 u8 perm_write_protect; 216 u8 tmp_write_protect; 217 u8 file_format; 218 u8 ecc; 219}; 220 221/* 222 * OCR bits are mostly in host.h 223 */ 224#define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */ 225 226/* 227 * Card Command Classes (CCC) 228 */ 229#define CCC_BASIC (1<<0) /* (0) Basic protocol functions */ 230 /* (CMD0,1,2,3,4,7,9,10,12,13,15) */ 231 /* (and for SPI, CMD58,59) */ 232#define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */ 233 /* (CMD11) */ 234#define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */ 235 /* (CMD16,17,18) */ 236#define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */ 237 /* (CMD20) */ 238#define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */ 239 /* (CMD16,24,25,26,27) */ 240#define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */ 241 /* (CMD32,33,34,35,36,37,38,39) */ 242#define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */ 243 /* (CMD28,29,30) */ 244#define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */ 245 /* (CMD16,CMD42) */ 246#define CCC_APP_SPEC (1<<8) /* (8) Application specific */ 247 /* (CMD55,56,57,ACMD*) */ 248#define CCC_IO_MODE (1<<9) /* (9) I/O mode */ 249 /* (CMD5,39,40,52,53) */ 250#define CCC_SWITCH (1<<10) /* (10) High speed switch */ 251 /* (CMD6,34,35,36,37,50) */ 252 /* (11) Reserved */ 253 /* (CMD?) */ 254 255/* 256 * CSD field definitions 257 */ 258 259#define CSD_STRUCT_VER_1_0 0 /* Valid for system specification 1.0 - 1.2 */ 260#define CSD_STRUCT_VER_1_1 1 /* Valid for system specification 1.4 - 2.2 */ 261#define CSD_STRUCT_VER_1_2 2 /* Valid for system specification 3.1 - 3.2 - 3.31 - 4.0 - 4.1 */ 262#define CSD_STRUCT_EXT_CSD 3 /* Version is coded in CSD_STRUCTURE in EXT_CSD */ 263 264#define CSD_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.2 */ 265#define CSD_SPEC_VER_1 1 /* Implements system specification 1.4 */ 266#define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */ 267#define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 - 3.2 - 3.31 */ 268#define CSD_SPEC_VER_4 4 /* Implements system specification 4.0 - 4.1 */ 269 270/* 271 * EXT_CSD fields 272 */ 273 274#define EXT_CSD_FLUSH_CACHE 32 /* W */ 275#define EXT_CSD_CACHE_CTRL 33 /* R/W */ 276#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */ 277#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */ 278#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ 279#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */ 280#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ 281#define EXT_CSD_HPI_MGMT 161 /* R/W */ 282#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ 283#define EXT_CSD_SANITIZE_START 165 /* W */ 284#define EXT_CSD_WR_REL_PARAM 166 /* RO */ 285#define EXT_CSD_BOOT_WP 173 /* R/W */ 286#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ 287#define EXT_CSD_PART_CONFIG 179 /* R/W */ 288#define EXT_CSD_ERASED_MEM_CONT 181 /* RO */ 289#define EXT_CSD_BUS_WIDTH 183 /* R/W */ 290#define EXT_CSD_HS_TIMING 185 /* R/W */ 291#define EXT_CSD_POWER_CLASS 187 /* R/W */ 292#define EXT_CSD_REV 192 /* RO */ 293#define EXT_CSD_STRUCTURE 194 /* RO */ 294#define EXT_CSD_CARD_TYPE 196 /* RO */ 295#define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */ 296#define EXT_CSD_PART_SWITCH_TIME 199 /* RO */ 297#define EXT_CSD_PWR_CL_52_195 200 /* RO */ 298#define EXT_CSD_PWR_CL_26_195 201 /* RO */ 299#define EXT_CSD_PWR_CL_52_360 202 /* RO */ 300#define EXT_CSD_PWR_CL_26_360 203 /* RO */ 301#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ 302#define EXT_CSD_S_A_TIMEOUT 217 /* RO */ 303#define EXT_CSD_REL_WR_SEC_C 222 /* RO */ 304#define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ 305#define EXT_CSD_ERASE_TIMEOUT_MULT 223 /* RO */ 306#define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ 307#define EXT_CSD_BOOT_MULT 226 /* RO */ 308#define EXT_CSD_SEC_TRIM_MULT 229 /* RO */ 309#define EXT_CSD_SEC_ERASE_MULT 230 /* RO */ 310#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */ 311#define EXT_CSD_TRIM_MULT 232 /* RO */ 312#define EXT_CSD_PWR_CL_200_195 236 /* RO */ 313#define EXT_CSD_PWR_CL_200_360 237 /* RO */ 314#define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */ 315#define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */ 316#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */ 317#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ 318#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ 319#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ 320#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */ 321#define EXT_CSD_HPI_FEATURES 503 /* RO */ 322 323/* 324 * EXT_CSD field definitions 325 */ 326 327#define EXT_CSD_WR_REL_PARAM_EN (1<<2) 328 329#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40) 330#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10) 331#define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04) 332#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01) 333 334#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7) 335#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1) 336#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4) 337 338#define EXT_CSD_PART_SUPPORT_PART_EN (0x1) 339 340#define EXT_CSD_CMD_SET_NORMAL (1<<0) 341#define EXT_CSD_CMD_SET_SECURE (1<<1) 342#define EXT_CSD_CMD_SET_CPSECURE (1<<2) 343 344#define EXT_CSD_CARD_TYPE_26 (1<<0) /* Card can run at 26MHz */ 345#define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */ 346#define EXT_CSD_CARD_TYPE_MASK 0x3F /* Mask out reserved bits */ 347#define EXT_CSD_CARD_TYPE_DDR_1_8V (1<<2) /* Card can run at 52MHz */ 348 /* DDR mode @1.8V or 3V I/O */ 349#define EXT_CSD_CARD_TYPE_DDR_1_2V (1<<3) /* Card can run at 52MHz */ 350 /* DDR mode @1.2V I/O */ 351#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \ 352 | EXT_CSD_CARD_TYPE_DDR_1_2V) 353#define EXT_CSD_CARD_TYPE_SDR_1_8V (1<<4) /* Card can run at 200MHz */ 354#define EXT_CSD_CARD_TYPE_SDR_1_2V (1<<5) /* Card can run at 200MHz */ 355 /* SDR mode @1.2V I/O */ 356 357#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ 358#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ 359#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ 360#define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */ 361#define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */ 362 363#define EXT_CSD_SEC_ER_EN BIT(0) 364#define EXT_CSD_SEC_BD_BLK_EN BIT(2) 365#define EXT_CSD_SEC_GB_CL_EN BIT(4) 366#define EXT_CSD_SEC_SANITIZE BIT(6) /* v4.5 only */ 367 368#define EXT_CSD_RST_N_EN_MASK 0x3 369#define EXT_CSD_RST_N_ENABLED 1 /* RST_n is enabled on card */ 370 371#define EXT_CSD_NO_POWER_NOTIFICATION 0 372#define EXT_CSD_POWER_ON 1 373#define EXT_CSD_POWER_OFF_SHORT 2 374#define EXT_CSD_POWER_OFF_LONG 3 375 376#define EXT_CSD_PWR_CL_8BIT_MASK 0xF0 /* 8 bit PWR CLS */ 377#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */ 378#define EXT_CSD_PWR_CL_8BIT_SHIFT 4 379#define EXT_CSD_PWR_CL_4BIT_SHIFT 0 380/* 381 * MMC_SWITCH access modes 382 */ 383 384#define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ 385#define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits which are 1 in value */ 386#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */ 387#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */ 388 389#endif /* LINUX_MMC_MMC_H */ 390