/*-
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Portions of this software may have been developed with reference to
* the SD Simplified Specification. The following disclaimer may apply:
*
* The following conditions apply to the release of the simplified
* specification ("Simplified Specification") by the SD Card Association and
* the SD Group. The Simplified Specification is a subset of the complete SD
* Specification which is owned by the SD Card Association and the SD
* Group. This Simplified Specification is provided on a non-confidential
* basis subject to the disclaimers below. Any implementation of the
* Simplified Specification may require a license from the SD Card
* Association, SD Group, SD-3C LLC or other third parties.
*
* Disclaimers:
*
* The information contained in the Simplified Specification is presented only
* as a standard specification for SD Cards and SD Host/Ancillary products and
* is provided "AS-IS" without any representations or warranties of any
* kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD
* Card Association for any damages, any infringements of patents or other
* right of the SD Group, SD-3C LLC, the SD Card Association or any third
* parties, which may result from its use. No license is granted by
* implication, estoppel or otherwise under any patent or other rights of the
* SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing
* herein shall be construed as an obligation by the SD Group, the SD-3C LLC
* or the SD Card Association to disclose or distribute any technical
* information, know-how or other confidential information to any third party.
*
* $FreeBSD$
*/
#ifndef DEV_MMC_MMCREG_H
#define DEV_MMC_MMCREG_H
/*
* This file contains the register definitions for the mmc and sd busses.
* They are taken from publicly available sources.
*/
struct mmc_data;
struct mmc_request;
struct mmc_command {
uint32_t opcode;
uint32_t arg;
uint32_t resp[4];
uint32_t flags; /* Expected responses */
#define MMC_RSP_PRESENT (1ul << 0) /* Response */
#define MMC_RSP_136 (1ul << 1) /* 136 bit response */
#define MMC_RSP_CRC (1ul << 2) /* Expect valid crc */
#define MMC_RSP_BUSY (1ul << 3) /* Card may send busy */
#define MMC_RSP_OPCODE (1ul << 4) /* Response include opcode */
#define MMC_RSP_MASK 0x1ful
#define MMC_CMD_AC (0ul << 5) /* Addressed Command, no data */
#define MMC_CMD_ADTC (1ul << 5) /* Addressed Data transfer cmd */
#define MMC_CMD_BC (2ul << 5) /* Broadcast command, no response */
#define MMC_CMD_BCR (3ul << 5) /* Broadcast command with response */
#define MMC_CMD_MASK (3ul << 5)
/* Possible response types defined in the standard: */
#define MMC_RSP_NONE (0)
#define MMC_RSP_R1 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE)
#define MMC_RSP_R1B (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE | MMC_RSP_BUSY)
#define MMC_RSP_R2 (MMC_RSP_PRESENT | MMC_RSP_136 | MMC_RSP_CRC)
#define MMC_RSP_R3 (MMC_RSP_PRESENT)
#define MMC_RSP_R4 (MMC_RSP_PRESENT)
#define MMC_RSP_R5 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE)
#define MMC_RSP_R5B (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE | MMC_RSP_BUSY)
#define MMC_RSP_R6 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE)
#define MMC_RSP_R7 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE)
#define MMC_RSP(x) ((x) & MMC_RSP_MASK)
uint32_t retries;
uint32_t error;
#define MMC_ERR_NONE 0
#define MMC_ERR_TIMEOUT 1
#define MMC_ERR_BADCRC 2
#define MMC_ERR_FIFO 3
#define MMC_ERR_FAILED 4
#define MMC_ERR_INVALID 5
#define MMC_ERR_NO_MEMORY 6
#define MMC_ERR_MAX 6
struct mmc_data *data; /* Data segment with cmd */
struct mmc_request *mrq; /* backpointer to request */
};
/*
* R1 responses
*
* Types (per SD 2.0 standard)
* e : error bit
* s : status bit
* r : detected and set for the actual command response
* x : Detected and set during command execution. The host can get
* the status by issuing a command with R1 response.
*
* Clear Condition (per SD 2.0 standard)
* a : according to the card current 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 (1u << 31) /* erx, c */
#define R1_ADDRESS_ERROR (1u << 30) /* erx, c */
#define R1_BLOCK_LEN_ERROR (1u << 29) /* erx, c */
#define R1_ERASE_SEQ_ERROR (1u << 28) /* er, c */
#define R1_ERASE_PARAM (1u << 27) /* erx, c */
#define R1_WP_VIOLATION (1u << 26) /* erx, c */
#define R1_CARD_IS_LOCKED (1u << 25) /* sx, a */
#define R1_LOCK_UNLOCK_FAILED (1u << 24) /* erx, c */
#define R1_COM_CRC_ERROR (1u << 23) /* er, b */
#define R1_ILLEGAL_COMMAND (1u << 22) /* er, b */
#define R1_CARD_ECC_FAILED (1u << 21) /* erx, c */
#define R1_CC_ERROR (1u << 20) /* erx, c */
#define R1_ERROR (1u << 19) /* erx, c */
#define R1_CSD_OVERWRITE (1u << 16) /* erx, c */
#define R1_WP_ERASE_SKIP (1u << 15) /* erx, c */
#define R1_CARD_ECC_DISABLED (1u << 14) /* sx, a */
#define R1_ERASE_RESET (1u << 13) /* sr, c */
#define R1_CURRENT_STATE_MASK (0xfu << 9) /* sx, b */
#define R1_READY_FOR_DATA (1u << 8) /* sx, a */
#define R1_APP_CMD (1u << 5) /* sr, c */
#define R1_AKE_SEQ_ERROR (1u << 3) /* er, c */
#define R1_STATUS(x) ((x) & 0xFFFFE000)
#define R1_CURRENT_STATE(x) (((x) & R1_CURRENT_STATE_MASK) >> 9)
#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
struct mmc_data {
size_t len; /* size of the data */
size_t xfer_len;
void *data; /* data buffer */
uint32_t flags;
#define MMC_DATA_WRITE (1UL << 0)
#define MMC_DATA_READ (1UL << 1)
#define MMC_DATA_STREAM (1UL << 2)
#define MMC_DATA_MULTI (1UL << 3)
struct mmc_request *mrq;
};
struct mmc_request {
struct mmc_command *cmd;
struct mmc_command *stop;
void (*done)(struct mmc_request *); /* Completion function */
void *done_data; /* requestor set data */
uint32_t flags;
#define MMC_REQ_DONE 1
};
/* Command definitions */
/* Class 0 and 1: Basic commands & read stream commands */
#define MMC_GO_IDLE_STATE 0
#define MMC_SEND_OP_COND 1
#define MMC_ALL_SEND_CID 2
#define MMC_SET_RELATIVE_ADDR 3
#define SD_SEND_RELATIVE_ADDR 3
#define MMC_SET_DSR 4
/* reserved: 5 */
#define MMC_SWITCH_FUNC 6
#define MMC_SWITCH_FUNC_CMDS 0
#define MMC_SWITCH_FUNC_SET 1
#define MMC_SWITCH_FUNC_CLR 2
#define MMC_SWITCH_FUNC_WR 3
#define MMC_SELECT_CARD 7
#define MMC_DESELECT_CARD 7
#define MMC_SEND_EXT_CSD 8
#define SD_SEND_IF_COND 8
#define MMC_SEND_CSD 9
#define MMC_SEND_CID 10
#define MMC_READ_DAT_UNTIL_STOP 11
#define MMC_STOP_TRANSMISSION 12
#define MMC_SEND_STATUS 13
#define MMC_BUSTEST_R 14
#define MMC_GO_INACTIVE_STATE 15
#define MMC_BUSTEST_W 19
/* Class 2: Block oriented read commands */
#define MMC_SET_BLOCKLEN 16
#define MMC_READ_SINGLE_BLOCK 17
#define MMC_READ_MULTIPLE_BLOCK 18
/* reserved: 19 */
/* Class 3: Stream write commands */
#define MMC_WRITE_DAT_UNTIL_STOP 20
/* reserved: 21 */
/* reserved: 22 */
/* Class 4: Block oriented write commands */
#define MMC_SET_BLOCK_COUNT 23
#define MMC_WRITE_BLOCK 24
#define MMC_WRITE_MULTIPLE_BLOCK 25
#define MMC_PROGARM_CID 26
#define MMC_PROGRAM_CSD 27
/* Class 6: Block oriented write protection commands */
#define MMC_SET_WRITE_PROT 28
#define MMC_CLR_WRITE_PROT 29
#define MMC_SEND_WRITE_PROT 30
/* reserved: 31 */
/* Class 5: Erase commands */
#define SD_ERASE_WR_BLK_START 32
#define SD_ERASE_WR_BLK_END 33
/* 34 -- reserved old command */
#define MMC_ERASE_GROUP_START 35
#define MMC_ERASE_GROUP_END 36
/* 37 -- reserved old command */
#define MMC_ERASE 38
/* Class 9: I/O mode commands */
#define MMC_FAST_IO 39
#define MMC_GO_IRQ_STATE 40
/* reserved: 41 */
/* Class 7: Lock card */
#define MMC_LOCK_UNLOCK 42
/* reserved: 43 */
/* reserved: 44 */
/* reserved: 45 */
/* reserved: 46 */
/* reserved: 47 */
/* reserved: 48 */
/* reserved: 49 */
/* reserved: 50 */
/* reserved: 51 */
/* reserved: 54 */
/* Class 8: Application specific commands */
#define MMC_APP_CMD 55
#define MMC_GEN_CMD 56
/* reserved: 57 */
/* reserved: 58 */
/* reserved: 59 */
/* reserved for mfg: 60 */
/* reserved for mfg: 61 */
/* reserved for mfg: 62 */
/* reserved for mfg: 63 */
/* Class 9: I/O cards (sd) */
#define SD_IO_RW_DIRECT 52
#define SD_IO_RW_EXTENDED 53
/* Class 10: Switch function commands */
#define SD_SWITCH_FUNC 6
/* reserved: 34 */
/* reserved: 35 */
/* reserved: 36 */
/* reserved: 37 */
/* reserved: 50 */
/* reserved: 57 */
/* Application specific commands for SD */
#define ACMD_SET_BUS_WIDTH 6
#define ACMD_SD_STATUS 13
#define ACMD_SEND_NUM_WR_BLOCKS 22
#define ACMD_SET_WR_BLK_ERASE_COUNT 23
#define ACMD_SD_SEND_OP_COND 41
#define ACMD_SET_CLR_CARD_DETECT 42
#define ACMD_SEND_SCR 51
/*
* EXT_CSD fields
*/
#define EXT_CSD_ERASE_GRP_DEF 175 /* R/W */
#define EXT_CSD_BUS_WIDTH 183 /* R/W */
#define EXT_CSD_HS_TIMING 185 /* R/W */
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_ERASE_TO_MULT 223 /* RO */
#define EXT_CSD_ERASE_GRP_SIZE 224 /* RO */
/*
* EXT_CSD field definitions
*/
#define EXT_CSD_CMD_SET_NORMAL 1
#define EXT_CSD_CMD_SET_SECURE 2
#define EXT_CSD_CMD_SET_CPSECURE 4
#define EXT_CSD_CARD_TYPE_26 1
#define EXT_CSD_CARD_TYPE_52 2
#define EXT_CSD_BUS_WIDTH_1 0
#define EXT_CSD_BUS_WIDTH_4 1
#define EXT_CSD_BUS_WIDTH_8 2
#define MMC_TYPE_26_MAX_HS 26000000
#define MMC_TYPE_52_MAX_HS 52000000
/*
* SD bus widths
*/
#define SD_BUS_WIDTH_1 0
#define SD_BUS_WIDTH_4 2
/*
* SD Switch
*/
#define SD_SWITCH_MODE_CHECK 0
#define SD_SWITCH_MODE_SET 1
#define SD_SWITCH_GROUP1 0
#define SD_SWITCH_NORMAL_MODE 0
#define SD_SWITCH_HS_MODE 1
#define SD_SWITCH_NOCHANGE 0xF
#define SD_CLR_CARD_DETECT 0
#define SD_SET_CARD_DETECT 1
#define SD_MAX_HS 50000000
/* OCR bits */
/*
* in SD 2.0 spec, bits 8-14 are now marked reserved
* Low voltage in SD2.0 spec is bit 7, TBD voltage
* Low voltage in MC 3.31 spec is bit 7, 1.65-1.95V
* Specs prior to MMC 3.31 defined bits 0-7 as voltages down to 1.5V.
* 3.31 redefined them to be reserved and also said that cards had to
* support the 2.7-3.6V and fixed the OCR to be 0xfff8000 for high voltage
* cards. MMC 4.0 says that a dual voltage card responds with 0xfff8080.
* Looks like the fine-grained control of the voltage tolerance ranges
* was abandoned.
*
* The MMC_OCR_CCS appears to be valid for only SD cards.
*/
#define MMC_OCR_VOLTAGE 0x3fffffffU /* Vdd Voltage mask */
#define MMC_OCR_LOW_VOLTAGE (1u << 7) /* Low Voltage Range -- tbd */
#define MMC_OCR_200_210 (1U << 8) /* Vdd voltage 2.00 ~ 2.10 */
#define MMC_OCR_MIN_VOLTAGE_SHIFT 8
#define MMC_OCR_210_220 (1U << 9) /* Vdd voltage 2.10 ~ 2.20 */
#define MMC_OCR_220_230 (1U << 10) /* Vdd voltage 2.20 ~ 2.30 */
#define MMC_OCR_230_240 (1U << 11) /* Vdd voltage 2.30 ~ 2.40 */
#define MMC_OCR_240_250 (1U << 12) /* Vdd voltage 2.40 ~ 2.50 */
#define MMC_OCR_250_260 (1U << 13) /* Vdd voltage 2.50 ~ 2.60 */
#define MMC_OCR_260_270 (1U << 14) /* Vdd voltage 2.60 ~ 2.70 */
#define MMC_OCR_270_280 (1U << 15) /* Vdd voltage 2.70 ~ 2.80 */
#define MMC_OCR_280_290 (1U << 16) /* Vdd voltage 2.80 ~ 2.90 */
#define MMC_OCR_290_300 (1U << 17) /* Vdd voltage 2.90 ~ 3.00 */
#define MMC_OCR_300_310 (1U << 18) /* Vdd voltage 3.00 ~ 3.10 */
#define MMC_OCR_310_320 (1U << 19) /* Vdd voltage 3.10 ~ 3.20 */
#define MMC_OCR_320_330 (1U << 20) /* Vdd voltage 3.20 ~ 3.30 */
#define MMC_OCR_330_340 (1U << 21) /* Vdd voltage 3.30 ~ 3.40 */
#define MMC_OCR_340_350 (1U << 22) /* Vdd voltage 3.40 ~ 3.50 */
#define MMC_OCR_350_360 (1U << 23) /* Vdd voltage 3.50 ~ 3.60 */
#define MMC_OCR_MAX_VOLTAGE_SHIFT 23
#define MMC_OCR_CCS (1u << 30) /* Card Capacity status (SD vs SDHC) */
#define MMC_OCR_CARD_BUSY (1U << 31) /* Card Power up status */
/* CSD -- decoded structure */
struct mmc_cid {
uint32_t mid;
char pnm[8];
uint32_t psn;
uint16_t oid;
uint16_t mdt_year;
uint8_t mdt_month;
uint8_t prv;
uint8_t fwrev;
};
struct mmc_csd
{
uint8_t csd_structure;
uint8_t spec_vers;
uint16_t ccc;
uint16_t tacc;
uint32_t nsac;
uint32_t r2w_factor;
uint32_t tran_speed;
uint32_t read_bl_len;
uint32_t write_bl_len;
uint32_t vdd_r_curr_min;
uint32_t vdd_r_curr_max;
uint32_t vdd_w_curr_min;
uint32_t vdd_w_curr_max;
uint32_t wp_grp_size;
uint32_t erase_sector;
uint64_t capacity;
unsigned int read_bl_partial:1,
read_blk_misalign:1,
write_bl_partial:1,
write_blk_misalign:1,
dsr_imp:1,
erase_blk_en:1,
wp_grp_enable:1;
};
struct mmc_scr
{
unsigned char sda_vsn;
unsigned char bus_widths;
#define SD_SCR_BUS_WIDTH_1 (1<<0)
#define SD_SCR_BUS_WIDTH_4 (1<<2)
};
struct mmc_sd_status
{
uint8_t bus_width;
uint8_t secured_mode;
uint16_t card_type;
uint16_t prot_area;
uint8_t speed_class;
uint8_t perf_move;
uint8_t au_size;
uint16_t erase_size;
uint8_t erase_timeout;
uint8_t erase_offset;
};
/*
* Older versions of the MMC standard had a variable sector size. However,
* I've been able to find no old MMC or SD cards that have a non 512
* byte sector size anywhere, so we assume that such cards are very rare
* and only note their existence in passing here...
*/
#define MMC_SECTOR_SIZE 512
#endif /* DEV_MMCREG_H */
