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sdmmcreg.h revision 1.33
      1 /*	$NetBSD: sdmmcreg.h,v 1.33 2017/09/12 13:43:37 jmcneill Exp $	*/
      2 /*	$OpenBSD: sdmmcreg.h,v 1.4 2009/01/09 10:55:22 jsg Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 2006 Uwe Stuehler <uwe (at) openbsd.org>
      6  *
      7  * Permission to use, copy, modify, and distribute this software for any
      8  * purpose with or without fee is hereby granted, provided that the above
      9  * copyright notice and this permission notice appear in all copies.
     10  *
     11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     18  */
     19 
     20 #ifndef	_SDMMCREG_H_
     21 #define	_SDMMCREG_H_
     22 
     23 /* MMC commands */				/* response type */
     24 #define MMC_GO_IDLE_STATE		0	/* R0 */
     25 #define MMC_SEND_OP_COND		1	/* R3 */
     26 #define MMC_ALL_SEND_CID		2	/* R2 */
     27 #define MMC_SET_RELATIVE_ADDR 	  	3	/* R1 */
     28 #define MMC_SWITCH			6	/* R1b */
     29 #define MMC_SELECT_CARD			7	/* R1 */
     30 #define MMC_SEND_EXT_CSD		8	/* R1 */
     31 #define MMC_SEND_CSD			9	/* R2 */
     32 #define MMC_SEND_CID			10	/* R2 */
     33 #define MMC_STOP_TRANSMISSION		12	/* R1b */
     34 #define MMC_SEND_STATUS			13	/* R1 */
     35 #define MMC_INACTIVE_STATE		15	/* R0 */
     36 #define MMC_SET_BLOCKLEN		16	/* R1 */
     37 #define MMC_READ_BLOCK_SINGLE		17	/* R1 */
     38 #define MMC_READ_BLOCK_MULTIPLE		18	/* R1 */
     39 #define MMC_SEND_TUNING_BLOCK		19	/* R1 */
     40 #define MMC_SEND_TUNING_BLOCK_HS200	21	/* R1 */
     41 #define MMC_SET_BLOCK_COUNT		23	/* R1 */
     42 #define MMC_WRITE_BLOCK_SINGLE		24	/* R1 */
     43 #define MMC_WRITE_BLOCK_MULTIPLE	25	/* R1 */
     44 #define MMC_PROGRAM_CSD			27	/* R1 */
     45 #define MMC_SET_WRITE_PROT		28	/* R1b */
     46 #define MMC_SET_CLR_WRITE_PROT		29	/* R1b */
     47 #define MMC_SET_SEND_WRITE_PROT		30	/* R1 */
     48 #define MMC_TAG_SECTOR_START		32	/* R1 */
     49 #define MMC_TAG_SECTOR_END		33	/* R1 */
     50 #define MMC_UNTAG_SECTOR		34	/* R1 */
     51 #define MMC_TAG_ERASE_GROUP_START	35	/* R1 */
     52 #define MMC_TAG_ERASE_GROUP_END		36	/* R1 */
     53 #define MMC_UNTAG_ERASE_GROUP		37	/* R1 */
     54 #define MMC_ERASE			38	/* R1b */
     55 #define MMC_LOCK_UNLOCK			42	/* R1b */
     56 #define MMC_APP_CMD			55	/* R1 */
     57 #define MMC_READ_OCR			58	/* R3 */
     58 
     59 /* SD commands */			/* response type */
     60 #define SD_SEND_RELATIVE_ADDR 	  	3	/* R6 */
     61 #define SD_SEND_SWITCH_FUNC		6	/* R1 */
     62 #define SD_SEND_IF_COND			8	/* R7 */
     63 #define SD_VOLTAGE_SWITCH		11	/* R1 */
     64 #define SD_ERASE_WR_BLK_START		32	/* R1 */
     65 #define SD_ERASE_WR_BLK_END		33	/* R1 */
     66 
     67 /* SD application commands */			/* response type */
     68 #define SD_APP_SET_BUS_WIDTH		6	/* R1 */
     69 #define SD_APP_SD_STATUS		13	/* R1 */
     70 #define SD_APP_SET_WR_BLK_ERASE_COUNT	23	/* R1 */
     71 #define SD_APP_OP_COND			41	/* R3 */
     72 #define SD_APP_SEND_SCR			51	/* R1 */
     73 
     74 /* SD erase arguments */
     75 #define SD_ERASE_DISCARD		0x00000001
     76 #define SD_ERASE_FULE			0x00000002
     77 
     78 /* OCR bits */
     79 #define MMC_OCR_MEM_READY		(1U<<31)/* memory power-up status bit */
     80 #define MMC_OCR_HCS			(1<<30)	/* SD only */
     81 #define MMC_OCR_ACCESS_MODE_MASK	(3<<29)	/* MMC only */
     82 #define MMC_OCR_ACCESS_MODE_BYTE	(0<<29)	/* MMC only */
     83 #define MMC_OCR_ACCESS_MODE_SECTOR	(2<<29)	/* MMC only */
     84 #define MMC_OCR_S18A			(1<<24)
     85 #define MMC_OCR_3_5V_3_6V		(1<<23)
     86 #define MMC_OCR_3_4V_3_5V		(1<<22)
     87 #define MMC_OCR_3_3V_3_4V		(1<<21)
     88 #define MMC_OCR_3_2V_3_3V		(1<<20)
     89 #define MMC_OCR_3_1V_3_2V		(1<<19)
     90 #define MMC_OCR_3_0V_3_1V		(1<<18)
     91 #define MMC_OCR_2_9V_3_0V		(1<<17)
     92 #define MMC_OCR_2_8V_2_9V		(1<<16)
     93 #define MMC_OCR_2_7V_2_8V		(1<<15)
     94 #define MMC_OCR_2_6V_2_7V		(1<<14)
     95 #define MMC_OCR_2_5V_2_6V		(1<<13)
     96 #define MMC_OCR_2_4V_2_5V		(1<<12)
     97 #define MMC_OCR_2_3V_2_4V		(1<<11)
     98 #define MMC_OCR_2_2V_2_3V		(1<<10)
     99 #define MMC_OCR_2_1V_2_2V		(1<<9)
    100 #define MMC_OCR_2_0V_2_1V		(1<<8)
    101 #define MMC_OCR_1_65V_1_95V		(1<<7)
    102 
    103 /* R1 response type bits */
    104 #define MMC_R1_READY_FOR_DATA		(1<<8)	/* ready for next transfer */
    105 #define MMC_R1_SWITCH_ERROR		(1<<7)	/* switch command failed */
    106 #define MMC_R1_APP_CMD			(1<<5)	/* app. commands supported */
    107 
    108 /* 48-bit response decoding (32 bits w/o CRC) */
    109 #define MMC_R1(resp)			((resp)[0])
    110 #define MMC_R3(resp)			((resp)[0])
    111 #define SD_R6(resp)			((resp)[0])
    112 #define MMC_R7(resp)			((resp)[0])
    113 #define MMC_SPI_R1(resp)		((resp)[0])
    114 #define MMC_SPI_R7(resp)		((resp)[1])
    115 
    116 /* RCA argument and response */
    117 #define MMC_ARG_RCA(rca)		((rca) << 16)
    118 #define SD_R6_RCA(resp)			(SD_R6((resp)) >> 16)
    119 
    120 /* bus width argument */
    121 #define SD_ARG_BUS_WIDTH_1		0
    122 #define SD_ARG_BUS_WIDTH_4		2
    123 
    124 /* EXT_CSD fields */
    125 #define EXT_CSD_FLUSH_CACHE		32	/* W/E_P */
    126 #define EXT_CSD_CACHE_CTRL		33	/* R/W/E_P */
    127 #define EXT_CSD_RST_N_FUNCTION		162	/* R/W */
    128 #define EXT_CSD_BUS_WIDTH		183	/* W/E_P */
    129 #define EXT_CSD_HS_TIMING		185	/* R/W/E_P */
    130 #define EXT_CSD_REV			192	/* R */
    131 #define EXT_CSD_STRUCTURE		194	/* R */
    132 #define EXT_CSD_CARD_TYPE		196	/* R */
    133 #define EXT_CSD_SEC_COUNT		212	/* R */
    134 #define EXT_CSD_CACHE_SIZE		249	/* R (4 bytes) */
    135 
    136 /* EXT_CSD field definitions */
    137 #define EXT_CSD_CMD_SET_NORMAL		(1U << 0)
    138 #define EXT_CSD_CMD_SET_SECURE		(1U << 1)
    139 #define EXT_CSD_CMD_SET_CPSECURE	(1U << 2)
    140 
    141 /* EXT_CSD_FLUSH_CACHE */
    142 #define EXT_CSD_FLUSH_CACHE_FLUSH	(1U << 0)
    143 #define EXT_CSD_FLUSH_CACHE_BARRIER	(1U << 1)
    144 
    145 /* EXT_CSD_CACHE_CTRL */
    146 #define EXT_CSD_CACHE_CTRL_CACHE_EN	(1U << 0)
    147 
    148 /* EXT_CSD_BUS_WIDTH */
    149 #define EXT_CSD_BUS_WIDTH_1		0	/* 1 bit mode */
    150 #define EXT_CSD_BUS_WIDTH_4		1	/* 4 bit mode */
    151 #define EXT_CSD_BUS_WIDTH_8		2	/* 8 bit mode */
    152 #define EXT_CSD_BUS_WIDTH_4_DDR		5	/* 4 bit mode (DDR) */
    153 #define EXT_CSD_BUS_WIDTH_8_DDR		6	/* 8 bit mode (DDR) */
    154 
    155 /* EXT_CSD_HS_TIMING */
    156 #define EXT_CSD_HS_TIMING_LEGACY	0
    157 #define EXT_CSD_HS_TIMING_HIGHSPEED	1
    158 #define EXT_CSD_HS_TIMING_HS200		2
    159 #define EXT_CSD_HS_TIMING_HS400		3
    160 
    161 /* EXT_CSD_STRUCTURE */
    162 #define EXT_CSD_STRUCTURE_VER_1_0	0	/* CSD Version No.1.0 */
    163 #define EXT_CSD_STRUCTURE_VER_1_1	1	/* CSD Version No.1.1 */
    164 #define EXT_CSD_STRUCTURE_VER_1_2	2	/* Version 4.1-4.2-4.3 */
    165 
    166 /* EXT_CSD_CARD_TYPE */
    167 #define EXT_CSD_CARD_TYPE_F_26M		(1 << 0) /* HS 26 MHz */
    168 #define EXT_CSD_CARD_TYPE_F_52M		(1 << 1) /* HS 52 MHz */
    169 #define EXT_CSD_CARD_TYPE_F_DDR52_1_8V	(1 << 2) /* HS DDR 52 MHz 1.8V or 3V */
    170 #define EXT_CSD_CARD_TYPE_F_DDR52_1_2V	(1 << 3) /* HS DDR 52 MHz 1.2V */
    171 #define EXT_CSD_CARD_TYPE_F_HS200_1_8V	(1 << 4) /* HS200 SDR 200 MHz 1.8V */
    172 #define EXT_CSD_CARD_TYPE_F_HS200_1_2V	(1 << 5) /* HS200 SDR 200 MHz 1.2V */
    173 #define EXT_CSD_CARD_TYPE_F_HS400_1_8V	(1 << 6) /* HS400 DDR 200 MHz 1.8V */
    174 #define EXT_CSD_CARD_TYPE_F_HS400_1_2V	(1 << 7) /* HS400 DDR 200 MHz 1.2V */
    175 
    176 /* EXT_CSD_RST_N_FUNCTION */
    177 #define	EXT_CSD_RST_N_TMP_DISABLED	0x00
    178 #define	EXT_CSD_RST_N_PERM_ENABLED	0x01
    179 #define	EXT_CSD_RST_N_PERM_DISABLED	0x02
    180 #define	EXT_CSD_RST_N_MASK		0x03
    181 
    182 /* MMC_SWITCH access mode */
    183 #define MMC_SWITCH_MODE_CMD_SET		0x00	/* Change the command set */
    184 #define MMC_SWITCH_MODE_SET_BITS	0x01	/* Set bits in value */
    185 #define MMC_SWITCH_MODE_CLEAR_BITS	0x02	/* Clear bits in value */
    186 #define MMC_SWITCH_MODE_WRITE_BYTE	0x03	/* Set target to value */
    187 
    188 /* SPI mode reports R1/R2(SEND_STATUS) status. */
    189 #define R1_SPI_IDLE		(1 << 0)
    190 #define R1_SPI_ERASE_RESET	(1 << 1)
    191 #define R1_SPI_ILLEGAL_COMMAND	(1 << 2)
    192 #define R1_SPI_COM_CRC		(1 << 3)
    193 #define R1_SPI_ERASE_SEQ	(1 << 4)
    194 #define R1_SPI_ADDRESS		(1 << 5)
    195 #define R1_SPI_PARAMETER	(1 << 6)
    196 /* R1 bit 7 is always zero */
    197 #define R2_SPI_CARD_LOCKED	(1 << 8)
    198 #define R2_SPI_WP_ERASE_SKIP	(1 << 9)	/* or lock/unlock fail */
    199 #define R2_SPI_LOCK_UNLOCK_FAIL	R2_SPI_WP_ERASE_SKIP
    200 #define R2_SPI_ERROR		(1 << 10)
    201 #define R2_SPI_CC_ERROR		(1 << 11)
    202 #define R2_SPI_CARD_ECC_ERROR	(1 << 12)
    203 #define R2_SPI_WP_VIOLATION	(1 << 13)
    204 #define R2_SPI_ERASE_PARAM	(1 << 14)
    205 #define R2_SPI_OUT_OF_RANGE	(1 << 15)	/* or CSD overwrite */
    206 #define R2_SPI_CSD_OVERWRITE	R2_SPI_OUT_OF_RANGE
    207 
    208 /* MMC R2 response (CSD) */
    209 #define MMC_CSD_CSDVER(resp)		MMC_RSP_BITS((resp), 126, 2)
    210 #define  MMC_CSD_CSDVER_1_0		0
    211 #define  MMC_CSD_CSDVER_1_1		1
    212 #define  MMC_CSD_CSDVER_1_2		2 /* MMC 4.1 - 4.2 - 4.3 */
    213 #define  MMC_CSD_CSDVER_EXT_CSD		3 /* Version is coded in CSD_STRUCTURE in EXT_CSD */
    214 #define MMC_CSD_MMCVER(resp)		MMC_RSP_BITS((resp), 122, 4)
    215 #define  MMC_CSD_MMCVER_1_0		0 /* MMC 1.0 - 1.2 */
    216 #define  MMC_CSD_MMCVER_1_4		1 /* MMC 1.4 */
    217 #define  MMC_CSD_MMCVER_2_0		2 /* MMC 2.0 - 2.2 */
    218 #define  MMC_CSD_MMCVER_3_1		3 /* MMC 3.1 - 3.3 */
    219 #define  MMC_CSD_MMCVER_4_0		4 /* MMC 4.1 - 4.2 - 4.3 */
    220 #define MMC_CSD_TAAC(resp)		MMC_RSP_BITS((resp), 112, 8)
    221 #define MMC_CSD_TAAC_MANT(resp)		MMC_RSP_BITS((resp), 115, 4)
    222 #define MMC_CSD_TAAC_EXP(resp)		MMC_RSP_BITS((resp), 112, 3)
    223 #define MMC_CSD_NSAC(resp)		MMC_RSP_BITS((resp), 104, 8)
    224 #define MMC_CSD_TRAN_SPEED(resp)	MMC_RSP_BITS((resp), 96, 8)
    225 #define MMC_CSD_TRAN_SPEED_MANT(resp)	MMC_RSP_BITS((resp), 99, 4)
    226 #define MMC_CSD_TRAN_SPEED_EXP(resp)	MMC_RSP_BITS((resp), 96, 3)
    227 #define MMC_CSD_READ_BL_LEN(resp)	MMC_RSP_BITS((resp), 80, 4)
    228 #define MMC_CSD_C_SIZE(resp)		MMC_RSP_BITS((resp), 62, 12)
    229 #define MMC_CSD_CAPACITY(resp)		((MMC_CSD_C_SIZE((resp))+1) << \
    230 					 (MMC_CSD_C_SIZE_MULT((resp))+2))
    231 #define MMC_CSD_C_SIZE_MULT(resp)	MMC_RSP_BITS((resp), 47, 3)
    232 #define MMC_CSD_R2W_FACTOR(resp)	MMC_RSP_BITS((resp), 26, 3)
    233 #define MMC_CSD_WRITE_BL_LEN(resp)	MMC_RSP_BITS((resp), 22, 4)
    234 
    235 /* MMC v1 R2 response (CID) */
    236 #define MMC_CID_MID_V1(resp)		MMC_RSP_BITS((resp), 104, 24)
    237 #define MMC_CID_PNM_V1_CPY(resp, pnm)					\
    238 	do {								\
    239 		(pnm)[0] = MMC_RSP_BITS((resp), 96, 8);			\
    240 		(pnm)[1] = MMC_RSP_BITS((resp), 88, 8);			\
    241 		(pnm)[2] = MMC_RSP_BITS((resp), 80, 8);			\
    242 		(pnm)[3] = MMC_RSP_BITS((resp), 72, 8);			\
    243 		(pnm)[4] = MMC_RSP_BITS((resp), 64, 8);			\
    244 		(pnm)[5] = MMC_RSP_BITS((resp), 56, 8);			\
    245 		(pnm)[6] = MMC_RSP_BITS((resp), 48, 8);			\
    246 		(pnm)[7] = '\0';					\
    247 	} while (/*CONSTCOND*/0)
    248 #define MMC_CID_REV_V1(resp)		MMC_RSP_BITS((resp), 40, 8)
    249 #define MMC_CID_PSN_V1(resp)		MMC_RSP_BITS((resp), 16, 24)
    250 #define MMC_CID_MDT_V1(resp)		MMC_RSP_BITS((resp), 8, 8)
    251 
    252 /* MMC v2 R2 response (CID) */
    253 #define MMC_CID_MID_V2(resp)		MMC_RSP_BITS((resp), 120, 8)
    254 #define MMC_CID_OID_V2(resp)		MMC_RSP_BITS((resp), 104, 16)
    255 #define MMC_CID_PNM_V2_CPY(resp, pnm)					\
    256 	do {								\
    257 		(pnm)[0] = MMC_RSP_BITS((resp), 96, 8);			\
    258 		(pnm)[1] = MMC_RSP_BITS((resp), 88, 8);			\
    259 		(pnm)[2] = MMC_RSP_BITS((resp), 80, 8);			\
    260 		(pnm)[3] = MMC_RSP_BITS((resp), 72, 8);			\
    261 		(pnm)[4] = MMC_RSP_BITS((resp), 64, 8);			\
    262 		(pnm)[5] = MMC_RSP_BITS((resp), 56, 8);			\
    263 		(pnm)[6] = '\0';					\
    264 	} while (/*CONSTCOND*/0)
    265 #define MMC_CID_PSN_V2(resp)		MMC_RSP_BITS((resp), 16, 32)
    266 
    267 /* SD R2 response (CSD) */
    268 #define SD_CSD_CSDVER(resp)		MMC_RSP_BITS((resp), 126, 2)
    269 #define  SD_CSD_CSDVER_1_0		0
    270 #define  SD_CSD_CSDVER_2_0		1
    271 #define SD_CSD_MMCVER(resp)		MMC_RSP_BITS((resp), 122, 4)
    272 #define SD_CSD_TAAC(resp)		MMC_RSP_BITS((resp), 112, 8)
    273 #define SD_CSD_TAAC_EXP(resp)		MMC_RSP_BITS((resp), 115, 4)
    274 #define SD_CSD_TAAC_MANT(resp)		MMC_RSP_BITS((resp), 112, 3)
    275 #define  SD_CSD_TAAC_1_5_MSEC		0x26
    276 #define SD_CSD_NSAC(resp)		MMC_RSP_BITS((resp), 104, 8)
    277 #define SD_CSD_SPEED(resp)		MMC_RSP_BITS((resp), 96, 8)
    278 #define SD_CSD_SPEED_MANT(resp)		MMC_RSP_BITS((resp), 99, 4)
    279 #define SD_CSD_SPEED_EXP(resp)		MMC_RSP_BITS((resp), 96, 3)
    280 #define  SD_CSD_SPEED_25_MHZ		0x32
    281 #define  SD_CSD_SPEED_50_MHZ		0x5a
    282 #define SD_CSD_CCC(resp)		MMC_RSP_BITS((resp), 84, 12)
    283 #define  SD_CSD_CCC_BASIC		(1 << 0)	/* basic */
    284 #define  SD_CSD_CCC_BR			(1 << 2)	/* block read */
    285 #define  SD_CSD_CCC_BW			(1 << 4)	/* block write */
    286 #define  SD_CSD_CCC_ERACE		(1 << 5)	/* erase */
    287 #define  SD_CSD_CCC_WP			(1 << 6)	/* write protection */
    288 #define  SD_CSD_CCC_LC			(1 << 7)	/* lock card */
    289 #define  SD_CSD_CCC_AS			(1 << 8)	/*application specific*/
    290 #define  SD_CSD_CCC_IOM			(1 << 9)	/* I/O mode */
    291 #define  SD_CSD_CCC_SWITCH		(1 << 10)	/* switch */
    292 #define SD_CSD_READ_BL_LEN(resp)	MMC_RSP_BITS((resp), 80, 4)
    293 #define SD_CSD_READ_BL_PARTIAL(resp)	MMC_RSP_BITS((resp), 79, 1)
    294 #define SD_CSD_WRITE_BLK_MISALIGN(resp)	MMC_RSP_BITS((resp), 78, 1)
    295 #define SD_CSD_READ_BLK_MISALIGN(resp)	MMC_RSP_BITS((resp), 77, 1)
    296 #define SD_CSD_DSR_IMP(resp)		MMC_RSP_BITS((resp), 76, 1)
    297 #define SD_CSD_C_SIZE(resp)		MMC_RSP_BITS((resp), 62, 12)
    298 #define SD_CSD_CAPACITY(resp)		((SD_CSD_C_SIZE((resp))+1) << \
    299 					 (SD_CSD_C_SIZE_MULT((resp))+2))
    300 #define SD_CSD_VDD_R_CURR_MIN(resp)	MMC_RSP_BITS((resp), 59, 3)
    301 #define SD_CSD_VDD_R_CURR_MAX(resp)	MMC_RSP_BITS((resp), 56, 3)
    302 #define SD_CSD_VDD_W_CURR_MIN(resp)	MMC_RSP_BITS((resp), 53, 3)
    303 #define SD_CSD_VDD_W_CURR_MAX(resp)	MMC_RSP_BITS((resp), 50, 3)
    304 #define  SD_CSD_VDD_RW_CURR_100mA	0x7
    305 #define  SD_CSD_VDD_RW_CURR_80mA	0x6
    306 #define SD_CSD_V2_C_SIZE(resp)		MMC_RSP_BITS((resp), 48, 22)
    307 #define SD_CSD_V2_CAPACITY(resp)	((SD_CSD_V2_C_SIZE((resp))+1) << 10)
    308 #define SD_CSD_V2_BL_LEN		0x9 /* 512 */
    309 #define SD_CSD_C_SIZE_MULT(resp)	MMC_RSP_BITS((resp), 47, 3)
    310 #define SD_CSD_ERASE_BLK_EN(resp)	MMC_RSP_BITS((resp), 46, 1)
    311 #define SD_CSD_SECTOR_SIZE(resp)	MMC_RSP_BITS((resp), 39, 7) /* +1 */
    312 #define SD_CSD_WP_GRP_SIZE(resp)	MMC_RSP_BITS((resp), 32, 7) /* +1 */
    313 #define SD_CSD_WP_GRP_ENABLE(resp)	MMC_RSP_BITS((resp), 31, 1)
    314 #define SD_CSD_R2W_FACTOR(resp)		MMC_RSP_BITS((resp), 26, 3)
    315 #define SD_CSD_WRITE_BL_LEN(resp)	MMC_RSP_BITS((resp), 22, 4)
    316 #define  SD_CSD_RW_BL_LEN_2G		0xa
    317 #define  SD_CSD_RW_BL_LEN_1G		0x9
    318 #define SD_CSD_WRITE_BL_PARTIAL(resp)	MMC_RSP_BITS((resp), 21, 1)
    319 #define SD_CSD_FILE_FORMAT_GRP(resp)	MMC_RSP_BITS((resp), 15, 1)
    320 #define SD_CSD_COPY(resp)		MMC_RSP_BITS((resp), 14, 1)
    321 #define SD_CSD_PERM_WRITE_PROTECT(resp)	MMC_RSP_BITS((resp), 13, 1)
    322 #define SD_CSD_TMP_WRITE_PROTECT(resp)	MMC_RSP_BITS((resp), 12, 1)
    323 #define SD_CSD_FILE_FORMAT(resp)	MMC_RSP_BITS((resp), 10, 2)
    324 
    325 /* SD R2 response (CID) */
    326 #define SD_CID_MID(resp)		MMC_RSP_BITS((resp), 120, 8)
    327 #define SD_CID_OID(resp)		MMC_RSP_BITS((resp), 104, 16)
    328 #define SD_CID_PNM_CPY(resp, pnm)					\
    329 	do {								\
    330 		(pnm)[0] = MMC_RSP_BITS((resp), 96, 8);			\
    331 		(pnm)[1] = MMC_RSP_BITS((resp), 88, 8);			\
    332 		(pnm)[2] = MMC_RSP_BITS((resp), 80, 8);			\
    333 		(pnm)[3] = MMC_RSP_BITS((resp), 72, 8);			\
    334 		(pnm)[4] = MMC_RSP_BITS((resp), 64, 8);			\
    335 		(pnm)[5] = '\0';					\
    336 	} while (/*CONSTCOND*/0)
    337 #define SD_CID_REV(resp)		MMC_RSP_BITS((resp), 56, 8)
    338 #define SD_CID_PSN(resp)		MMC_RSP_BITS((resp), 24, 32)
    339 #define SD_CID_MDT(resp)		MMC_RSP_BITS((resp), 8, 12)
    340 
    341 /* SCR (SD Configuration Register) */
    342 #define SCR_STRUCTURE(scr)		MMC_RSP_BITS((scr), 60, 4)
    343 #define  SCR_STRUCTURE_VER_1_0		0 /* Version 1.0 */
    344 #define SCR_SD_SPEC(scr)		MMC_RSP_BITS((scr), 56, 4)
    345 #define  SCR_SD_SPEC_VER_1_0		0 /* Version 1.0 and 1.01 */
    346 #define  SCR_SD_SPEC_VER_1_10		1 /* Version 1.10 */
    347 #define  SCR_SD_SPEC_VER_2		2 /* Version 2.00 or Version 3.0X */
    348 #define SCR_DATA_STAT_AFTER_ERASE(scr)	MMC_RSP_BITS((scr), 55, 1)
    349 #define SCR_SD_SECURITY(scr)		MMC_RSP_BITS((scr), 52, 3)
    350 #define  SCR_SD_SECURITY_NONE		0 /* no security */
    351 #define  SCR_SD_SECURITY_1_0		1 /* security protocol 1.0 */
    352 #define  SCR_SD_SECURITY_1_0_2		2 /* security protocol 1.0 */
    353 #define SCR_SD_BUS_WIDTHS(scr)		MMC_RSP_BITS((scr), 48, 4)
    354 #define  SCR_SD_BUS_WIDTHS_1BIT		(1 << 0) /* 1bit (DAT0) */
    355 #define  SCR_SD_BUS_WIDTHS_4BIT		(1 << 2) /* 4bit (DAT0-3) */
    356 #define SCR_SD_SPEC3(scr)		MMC_RSP_BITS((scr), 47, 1)
    357 #define SCR_EX_SECURITY(scr)		MMC_RSP_BITS((scr), 43, 4)
    358 #define SCR_RESERVED(scr)		MMC_RSP_BITS((scr), 34, 9)
    359 #define SCR_CMD_SUPPORT_CMD23(scr)	MMC_RSP_BITS((scr), 33, 1)
    360 #define SCR_CMD_SUPPORT_CMD20(scr)	MMC_RSP_BITS((scr), 32, 1)
    361 #define SCR_RESERVED2(scr)		MMC_RSP_BITS((scr), 0, 32)
    362 
    363 /* SSR (SD Status Register) */
    364 #define SSR_DAT_BUS_WIDTH(resp)		__bitfield((resp), 510, 2)
    365 #define  SSR_DAT_BUS_WIDTH_1		0
    366 #define  SSR_DAT_BUS_WIDTH_4		2
    367 #define SSR_SECURED_MODE(resp)		__bitfield((resp), 509, 1)
    368 #define SSR_SD_CARD_TYPE(resp)		__bitfield((resp), 480, 16)
    369 #define  SSR_SD_CARD_TYPE_RDWR		0
    370 #define  SSR_SD_CARD_TYPE_ROM		1
    371 #define  SSR_SD_CARD_TYPE_OTP		2
    372 #define SSR_SIZE_OF_PROTECTED_AREA(resp) __bitfield((resp), 448, 32)
    373 #define SSR_SPEED_CLASS(resp)		__bitfield((resp), 440, 8)
    374 #define  SSR_SPEED_CLASS_0		0
    375 #define  SSR_SPEED_CLASS_2		1
    376 #define  SSR_SPEED_CLASS_4		2
    377 #define  SSR_SPEED_CLASS_6		3
    378 #define  SSR_SPEED_CLASS_10		4
    379 #define SSR_PERFORMANCE_MOVE(resp)	__bitfield((resp), 432, 8)
    380 #define SSR_AU_SIZE(resp)		__bitfield((resp), 428, 4)
    381 #define SSR_ERASE_SIZE(resp)		__bitfield((resp), 408, 16)
    382 #define SSR_ERASE_TIMEOUT(resp)		__bitfield((resp), 402, 6)
    383 #define SSR_ERASE_OFFSET(resp)		__bitfield((resp), 400, 2)
    384 #define SSR_UHS_SPEED_GRADE(resp)	__bitfield((resp), 396, 4)
    385 #define  SSR_UHS_SPEED_GRADE_10MB	1
    386 #define  SSR_UHS_SPEED_GRADE_30MB	3
    387 #define SSR_UHS_AU_SIZE(resp)		__bitfield((resp), 392, 4)
    388 #define SSR_VIDEO_SPEED_CLASS(resp)	__bitfield((resp), 384, 8)
    389 #define SSR_VSC_AU_SIZE(resp)		__bitfield((resp), 368, 10)
    390 #define SSR_SUS_ADDR(resp)		__bitfield((resp), 346, 22)
    391 #define SSR_APP_PERF_CLASS(resp)	__bitfield((resp), 336, 4)
    392 #define  SSR_APP_PERF_CLASS_UNSUPPORTED	0
    393 #define  SSR_APP_PERF_CLASS_A1		1
    394 #define  SSR_APP_PERF_CLASS_A2		2
    395 #define SSR_PERFORMANCE_ENHANCE(resp)	__bitfield((resp), 328, 8)
    396 #define SSR_DISCARD_SUPPORT(resp)	__bitfield((resp), 313, 1)
    397 #define SSR_FULE_SUPPORT(resp)		__bitfield((resp), 312, 1)
    398 
    399 /* Status of Switch Function */
    400 #define SFUNC_STATUS_GROUP(status, group) \
    401 	(__bitfield((uint32_t *)(status), 400 + (group - 1) * 16, 16))
    402 
    403 #define SD_ACCESS_MODE_SDR12	0
    404 #define SD_ACCESS_MODE_SDR25	1
    405 #define SD_ACCESS_MODE_SDR50	2
    406 #define SD_ACCESS_MODE_SDR104	3
    407 #define SD_ACCESS_MODE_DDR50	4
    408 
    409 /* This assumes the response fields are in host byte order in 32-bit units.  */
    410 #define MMC_RSP_BITS(resp, start, len)	__bitfield((resp), (start)-8, (len))
    411 static inline uint32_t
    412 __bitfield(const uint32_t *src, size_t start, size_t len)
    413 {
    414 	if (start + len > 512 || len == 0 || len > 32)
    415 		return 0;
    416 
    417 	src += start / 32;
    418 	start %= 32;
    419 
    420 	uint32_t dst = src[0] >> start;
    421 
    422 	if (__predict_false((start + len - 1) / 32 != start / 32)) {
    423 		dst |= src[1] << (32 - start);
    424 	}
    425 
    426 	return dst & (__BIT(len) - 1);
    427 }
    428 
    429 #endif	/* _SDMMCREG_H_ */
    430