/* * Header for MultiMediaCard (MMC) * * Copyright 2002 Hewlett-Packard Company * * Use consistent with the GNU GPL is permitted, * provided that this copyright notice is * preserved in its entirety in all copies and derived works. * * HEWLETT-PACKARD COMPANY MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS * FITNESS FOR ANY PARTICULAR PURPOSE. * * Many thanks to Alessandro Rubini and Jonathan Corbet! * * Based strongly on code by: * * Author: Yong-iL Joh * * Author: Andrew Christian * 15 May 2002 */ #ifndef LINUX_MMC_MMC_H #define LINUX_MMC_MMC_H #include extern const u8 tuning_blk_pattern_4bit[MMC_TUNING_BLK_PATTERN_4BIT_SIZE]; extern const u8 tuning_blk_pattern_8bit[MMC_TUNING_BLK_PATTERN_8BIT_SIZE]; /* class 11 */ #define MMC_CMDQ_TASK_MGMT 48 /* ac [31:0] task ID R1b */ #define DISCARD_QUEUE 0x1 #define DISCARD_TASK 0x2 static inline bool mmc_op_multi(u32 opcode) { return opcode == MMC_WRITE_MULTIPLE_BLOCK || opcode == MMC_READ_MULTIPLE_BLOCK; } /* * MMC_SWITCH argument format: * * [31:26] Always 0 * [25:24] Access Mode * [23:16] Location of target Byte in EXT_CSD * [15:08] Value Byte * [07:03] Always 0 * [02:00] Command Set */ /* MMC status in R1, for native mode (SPI bits are different) Type e : error bit s : status bit r : detected and set for the actual command response x : detected and set during command execution. the host must poll the card by sending status command in order to read these bits. Clear condition a : according to the card state b : always related to the previous command. Reception of a valid command will clear it (with a delay of one command) c : clear by read */ #define R1_OUT_OF_RANGE (1 << 31) /* er, c */ #define R1_ADDRESS_ERROR (1 << 30) /* erx, c */ #define R1_BLOCK_LEN_ERROR (1 << 29) /* er, c */ #define R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */ #define R1_ERASE_PARAM (1 << 27) /* ex, c */ #define R1_WP_VIOLATION (1 << 26) /* erx, c */ #define R1_CARD_IS_LOCKED (1 << 25) /* sx, a */ #define R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */ #define R1_COM_CRC_ERROR (1 << 23) /* er, b */ #define R1_ILLEGAL_COMMAND (1 << 22) /* er, b */ #define R1_CARD_ECC_FAILED (1 << 21) /* ex, c */ #define R1_CC_ERROR (1 << 20) /* erx, c */ #define R1_ERROR (1 << 19) /* erx, c */ #define R1_UNDERRUN (1 << 18) /* ex, c */ #define R1_OVERRUN (1 << 17) /* ex, c */ #define R1_CID_CSD_OVERWRITE (1 << 16) /* erx, c, CID/CSD overwrite */ #define R1_WP_ERASE_SKIP (1 << 15) /* sx, c */ #define R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */ #define R1_ERASE_RESET (1 << 13) /* sr, c */ #define R1_STATUS(x) (x & 0xFFFFE000) #define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */ #define R1_READY_FOR_DATA (1 << 8) /* sx, a */ #define R1_SWITCH_ERROR (1 << 7) /* sx, c */ #define R1_EXCEPTION_EVENT (1 << 6) /* sr, a */ #define R1_APP_CMD (1 << 5) /* sr, c */ #define R1_STATE_IDLE 0 #define R1_STATE_READY 1 #define R1_STATE_IDENT 2 #define R1_STATE_STBY 3 #define R1_STATE_TRAN 4 #define R1_STATE_DATA 5 #define R1_STATE_RCV 6 #define R1_STATE_PRG 7 #define R1_STATE_DIS 8 /* * MMC/SD in SPI mode reports R1 status always, and R2 for SEND_STATUS * R1 is the low order byte; R2 is the next highest byte, when present. */ #define R1_SPI_IDLE (1 << 0) #define R1_SPI_ERASE_RESET (1 << 1) #define R1_SPI_ILLEGAL_COMMAND (1 << 2) #define R1_SPI_COM_CRC (1 << 3) #define R1_SPI_ERASE_SEQ (1 << 4) #define R1_SPI_ADDRESS (1 << 5) #define R1_SPI_PARAMETER (1 << 6) /* R1 bit 7 is always zero */ #define R2_SPI_CARD_LOCKED (1 << 8) #define R2_SPI_WP_ERASE_SKIP (1 << 9) /* or lock/unlock fail */ #define R2_SPI_LOCK_UNLOCK_FAIL R2_SPI_WP_ERASE_SKIP #define R2_SPI_ERROR (1 << 10) #define R2_SPI_CC_ERROR (1 << 11) #define R2_SPI_CARD_ECC_ERROR (1 << 12) #define R2_SPI_WP_VIOLATION (1 << 13) #define R2_SPI_ERASE_PARAM (1 << 14) #define R2_SPI_OUT_OF_RANGE (1 << 15) /* or CSD overwrite */ #define R2_SPI_CSD_OVERWRITE R2_SPI_OUT_OF_RANGE /* These are unpacked versions of the actual responses */ struct _mmc_csd { u8 csd_structure; u8 spec_vers; u8 taac; u8 nsac; u8 tran_speed; u16 ccc; u8 read_bl_len; u8 read_bl_partial; u8 write_blk_misalign; u8 read_blk_misalign; u8 dsr_imp; u16 c_size; u8 vdd_r_curr_min; u8 vdd_r_curr_max; u8 vdd_w_curr_min; u8 vdd_w_curr_max; u8 c_size_mult; union { struct { /* MMC system specification version 3.1 */ u8 erase_grp_size; u8 erase_grp_mult; } v31; struct { /* MMC system specification version 2.2 */ u8 sector_size; u8 erase_grp_size; } v22; } erase; u8 wp_grp_size; u8 wp_grp_enable; u8 default_ecc; u8 r2w_factor; u8 write_bl_len; u8 write_bl_partial; u8 file_format_grp; u8 copy; u8 perm_write_protect; u8 tmp_write_protect; u8 file_format; u8 ecc; }; /* * OCR bits are mostly in host.h */ #define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */ #define MMC_CARD_SECTOR_ADDR 0x40000000 /* Card supports sectors */ /* * Card Command Classes (CCC) */ #define CCC_BASIC (1<<0) /* (0) Basic protocol functions */ /* (CMD0,1,2,3,4,7,9,10,12,13,15) */ /* (and for SPI, CMD58,59) */ #define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */ /* (CMD11) */ #define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */ /* (CMD16,17,18) */ #define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */ /* (CMD20) */ #define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */ /* (CMD16,24,25,26,27) */ #define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */ /* (CMD32,33,34,35,36,37,38,39) */ #define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */ /* (CMD28,29,30) */ #define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */ /* (CMD16,CMD42) */ #define CCC_APP_SPEC (1<<8) /* (8) Application specific */ /* (CMD55,56,57,ACMD*) */ #define CCC_IO_MODE (1<<9) /* (9) I/O mode */ /* (CMD5,39,40,52,53) */ #define CCC_SWITCH (1<<10) /* (10) High speed switch */ /* (CMD6,34,35,36,37,50) */ /* (11) Reserved */ /* (CMD?) */ /* * CSD field definitions */ #define CSD_STRUCT_VER_1_0 0 /* Valid for system specification 1.0 - 1.2 */ #define CSD_STRUCT_VER_1_1 1 /* Valid for system specification 1.4 - 2.2 */ #define CSD_STRUCT_VER_1_2 2 /* Valid for system specification 3.1 - 3.2 - 3.31 - 4.0 - 4.1 */ #define CSD_STRUCT_EXT_CSD 3 /* Version is coded in CSD_STRUCTURE in EXT_CSD */ #define CSD_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.2 */ #define CSD_SPEC_VER_1 1 /* Implements system specification 1.4 */ #define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */ #define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 - 3.2 - 3.31 */ #define CSD_SPEC_VER_4 4 /* Implements system specification 4.0 - 4.1 */ /* * EXT_CSD fields */ #define EXT_CSD_CMDQ 15 /* R/W */ #define EXT_CSD_BARRIER_CTRL 31 /* R/W */ #define EXT_CSD_FLUSH_CACHE 32 /* W */ #define EXT_CSD_CACHE_CTRL 33 /* R/W */ #define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */ #define EXT_CSD_PACKED_FAILURE_INDEX 35 /* RO */ #define EXT_CSD_PACKED_CMD_STATUS 36 /* RO */ #define EXT_CSD_EXP_EVENTS_STATUS 54 /* RO, 2 bytes */ #define EXT_CSD_EXP_EVENTS_CTRL 56 /* R/W, 2 bytes */ #define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */ #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ #define EXT_CSD_PARTITION_SETTING_COMPLETED 155 /* R/W */ #define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */ #define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ #define EXT_CSD_HPI_MGMT 161 /* R/W */ #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ #define EXT_CSD_BKOPS_EN 163 /* R/W */ #define EXT_CSD_BKOPS_START 164 /* W */ #define EXT_CSD_SANITIZE_START 165 /* W */ #define EXT_CSD_WR_REL_PARAM 166 /* RO */ #define EXT_CSD_RPMB_MULT 168 /* RO */ #define EXT_CSD_BOOT_WP 173 /* R/W */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ #define EXT_CSD_PART_CONFIG 179 /* R/W */ #define EXT_CSD_ERASED_MEM_CONT 181 /* RO */ #define EXT_CSD_BUS_WIDTH 183 /* R/W */ #define EXT_CSD_STROBE_SUPPORT 184 /* RO */ #define EXT_CSD_HS_TIMING 185 /* R/W */ #define EXT_CSD_POWER_CLASS 187 /* R/W */ #define EXT_CSD_REV 192 /* RO */ #define EXT_CSD_STRUCTURE 194 /* RO */ #define EXT_CSD_CARD_TYPE 196 /* RO */ #define EXT_CSD_DRIVE_STRENGTH 197 /* RO */ #define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */ #define EXT_CSD_PART_SWITCH_TIME 199 /* RO */ #define EXT_CSD_PWR_CL_52_195 200 /* RO */ #define EXT_CSD_PWR_CL_26_195 201 /* RO */ #define EXT_CSD_PWR_CL_52_360 202 /* RO */ #define EXT_CSD_PWR_CL_26_360 203 /* RO */ #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ #define EXT_CSD_S_A_TIMEOUT 217 /* RO */ #define EXT_CSD_REL_WR_SEC_C 222 /* RO */ #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ #define EXT_CSD_ERASE_TIMEOUT_MULT 223 /* RO */ #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ #define EXT_CSD_BOOT_MULT 226 /* RO */ #define EXT_CSD_SEC_TRIM_MULT 229 /* RO */ #define EXT_CSD_SEC_ERASE_MULT 230 /* RO */ #define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */ #define EXT_CSD_TRIM_MULT 232 /* RO */ #define EXT_CSD_PWR_CL_200_195 236 /* RO */ #define EXT_CSD_PWR_CL_200_360 237 /* RO */ #define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */ #define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */ #define EXT_CSD_CACHE_FLUSH_POLICY 240 /* RO */ #define EXT_CSD_BKOPS_STATUS 246 /* RO */ #define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */ #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ #define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ #define EXT_CSD_PWR_CL_DDR_200_360 253 /* RO */ #define EXT_CSD_FW_VERSION 254 /* RO */ #define EXT_CSD_CMDQ_DEPTH 307 /* RO */ #define EXT_CSD_CMDQ_SUPPORT 308 /* RO */ #define EXT_CSD_BARRIER_SUPPORT 486 /* RO */ #define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ #define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */ #define EXT_CSD_MAX_PACKED_WRITES 500 /* RO */ #define EXT_CSD_MAX_PACKED_READS 501 /* RO */ #define EXT_CSD_BKOPS_SUPPORT 502 /* RO */ #define EXT_CSD_HPI_FEATURES 503 /* RO */ /* * EXT_CSD field definitions */ #define EXT_CSD_WR_REL_PARAM_EN (1<<2) #define EXT_CSD_WR_REL_PARAM_EN_RPMB_REL_WR (1<<4) #define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40) #define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10) #define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04) #define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01) #define EXT_CSD_PART_CONFIG_ACC_MASK (0x7) #define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1) #define EXT_CSD_PART_CONFIG_ACC_RPMB (0x3) #define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4) #define EXT_CSD_PART_SETTING_COMPLETED (0x1) #define EXT_CSD_PART_SUPPORT_PART_EN (0x1) #define EXT_CSD_CMD_SET_NORMAL (1<<0) #define EXT_CSD_CMD_SET_SECURE (1<<1) #define EXT_CSD_CMD_SET_CPSECURE (1<<2) #define EXT_CSD_CARD_TYPE_HS_26 (1<<0) /* Card can run at 26MHz */ #define EXT_CSD_CARD_TYPE_HS_52 (1<<1) /* Card can run at 52MHz */ #define EXT_CSD_CARD_TYPE_HS (EXT_CSD_CARD_TYPE_HS_26 | \ EXT_CSD_CARD_TYPE_HS_52) #define EXT_CSD_CARD_TYPE_DDR_1_8V (1<<2) /* Card can run at 52MHz */ /* DDR mode @1.8V or 3V I/O */ #define EXT_CSD_CARD_TYPE_DDR_1_2V (1<<3) /* Card can run at 52MHz */ /* DDR mode @1.2V I/O */ #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \ | EXT_CSD_CARD_TYPE_DDR_1_2V) #define EXT_CSD_CARD_TYPE_HS200_1_8V (1<<4) /* Card can run at 200MHz */ #define EXT_CSD_CARD_TYPE_HS200_1_2V (1<<5) /* Card can run at 200MHz */ /* SDR mode @1.2V I/O */ #define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \ EXT_CSD_CARD_TYPE_HS200_1_2V) #define EXT_CSD_CARD_TYPE_HS400_1_8V (1<<6) /* Card can run at 200MHz DDR, 1.8V */ #define EXT_CSD_CARD_TYPE_HS400_1_2V (1<<7) /* Card can run at 200MHz DDR, 1.2V */ #define EXT_CSD_CARD_TYPE_HS400 (EXT_CSD_CARD_TYPE_HS400_1_8V | \ EXT_CSD_CARD_TYPE_HS400_1_2V) #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */ #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */ #define EXT_CSD_BUS_WIDTH_STROBE 0x80 /* Card is in 8 bit DDR mode */ #define EXT_CSD_TIMING_BC 0 /* Backwards compatility */ #define EXT_CSD_TIMING_HS 1 /* High speed */ #define EXT_CSD_TIMING_HS200 2 /* HS200 */ #define EXT_CSD_TIMING_HS400 3 /* HS400 */ #define EXT_CSD_SEC_ER_EN BIT(0) #define EXT_CSD_SEC_BD_BLK_EN BIT(2) #define EXT_CSD_SEC_GB_CL_EN BIT(4) #define EXT_CSD_SEC_SANITIZE BIT(6) /* v4.5 only */ #define EXT_CSD_RST_N_EN_MASK 0x3 #define EXT_CSD_RST_N_ENABLED 1 /* RST_n is enabled on card */ #define EXT_CSD_NO_POWER_NOTIFICATION 0 #define EXT_CSD_POWER_ON 1 #define EXT_CSD_POWER_OFF_SHORT 2 #define EXT_CSD_POWER_OFF_LONG 3 #define EXT_CSD_PWR_CL_8BIT_MASK 0xF0 /* 8 bit PWR CLS */ #define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */ #define EXT_CSD_PWR_CL_8BIT_SHIFT 4 #define EXT_CSD_PWR_CL_4BIT_SHIFT 0 #define EXT_CSD_PACKED_EVENT_EN BIT(3) #define EXT_CSD_BKOPS_MANUAL_EN BIT(0) #define EXT_CSD_BKOPS_AUTO_EN BIT(1) /* * EXCEPTION_EVENT_STATUS field */ #define EXT_CSD_URGENT_BKOPS BIT(0) #define EXT_CSD_DYNCAP_NEEDED BIT(1) #define EXT_CSD_SYSPOOL_EXHAUSTED BIT(2) #define EXT_CSD_PACKED_FAILURE BIT(3) #define EXT_CSD_PACKED_GENERIC_ERROR BIT(0) #define EXT_CSD_PACKED_INDEXED_ERROR BIT(1) /* * BKOPS status level */ #define EXT_CSD_BKOPS_LEVEL_2 0x2 /* * MMC_SWITCH access modes */ #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits which are 1 in value */ #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */ #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */ #endif /* LINUX_MMC_MMC_H */