150a55683b
This patch removes a CVS tag that wasn't updated for a long time. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
284 lines
9.9 KiB
C
284 lines
9.9 KiB
C
/*
|
|
* 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 <tolkien@mizi.com>
|
|
*
|
|
* Author: Andrew Christian
|
|
* 15 May 2002
|
|
*/
|
|
|
|
#ifndef MMC_MMC_H
|
|
#define MMC_MMC_H
|
|
|
|
/* Standard MMC commands (4.1) type argument response */
|
|
/* class 1 */
|
|
#define MMC_GO_IDLE_STATE 0 /* bc */
|
|
#define MMC_SEND_OP_COND 1 /* bcr [31:0] OCR R3 */
|
|
#define MMC_ALL_SEND_CID 2 /* bcr R2 */
|
|
#define MMC_SET_RELATIVE_ADDR 3 /* ac [31:16] RCA R1 */
|
|
#define MMC_SET_DSR 4 /* bc [31:16] RCA */
|
|
#define MMC_SWITCH 6 /* ac [31:0] See below R1b */
|
|
#define MMC_SELECT_CARD 7 /* ac [31:16] RCA R1 */
|
|
#define MMC_SEND_EXT_CSD 8 /* adtc R1 */
|
|
#define MMC_SEND_CSD 9 /* ac [31:16] RCA R2 */
|
|
#define MMC_SEND_CID 10 /* ac [31:16] RCA R2 */
|
|
#define MMC_READ_DAT_UNTIL_STOP 11 /* adtc [31:0] dadr R1 */
|
|
#define MMC_STOP_TRANSMISSION 12 /* ac R1b */
|
|
#define MMC_SEND_STATUS 13 /* ac [31:16] RCA R1 */
|
|
#define MMC_GO_INACTIVE_STATE 15 /* ac [31:16] RCA */
|
|
#define MMC_SPI_READ_OCR 58 /* spi spi_R3 */
|
|
#define MMC_SPI_CRC_ON_OFF 59 /* spi [0:0] flag spi_R1 */
|
|
|
|
/* class 2 */
|
|
#define MMC_SET_BLOCKLEN 16 /* ac [31:0] block len R1 */
|
|
#define MMC_READ_SINGLE_BLOCK 17 /* adtc [31:0] data addr R1 */
|
|
#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */
|
|
|
|
/* class 3 */
|
|
#define MMC_WRITE_DAT_UNTIL_STOP 20 /* adtc [31:0] data addr R1 */
|
|
|
|
/* class 4 */
|
|
#define MMC_SET_BLOCK_COUNT 23 /* adtc [31:0] data addr R1 */
|
|
#define MMC_WRITE_BLOCK 24 /* adtc [31:0] data addr R1 */
|
|
#define MMC_WRITE_MULTIPLE_BLOCK 25 /* adtc R1 */
|
|
#define MMC_PROGRAM_CID 26 /* adtc R1 */
|
|
#define MMC_PROGRAM_CSD 27 /* adtc R1 */
|
|
|
|
/* class 6 */
|
|
#define MMC_SET_WRITE_PROT 28 /* ac [31:0] data addr R1b */
|
|
#define MMC_CLR_WRITE_PROT 29 /* ac [31:0] data addr R1b */
|
|
#define MMC_SEND_WRITE_PROT 30 /* adtc [31:0] wpdata addr R1 */
|
|
|
|
/* class 5 */
|
|
#define MMC_ERASE_GROUP_START 35 /* ac [31:0] data addr R1 */
|
|
#define MMC_ERASE_GROUP_END 36 /* ac [31:0] data addr R1 */
|
|
#define MMC_ERASE 38 /* ac R1b */
|
|
|
|
/* class 9 */
|
|
#define MMC_FAST_IO 39 /* ac <Complex> R4 */
|
|
#define MMC_GO_IRQ_STATE 40 /* bcr R5 */
|
|
|
|
/* class 7 */
|
|
#define MMC_LOCK_UNLOCK 42 /* adtc R1b */
|
|
|
|
/* class 8 */
|
|
#define MMC_APP_CMD 55 /* ac [31:16] RCA R1 */
|
|
#define MMC_GEN_CMD 56 /* adtc [0] RD/WR R1 */
|
|
|
|
/*
|
|
* 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_APP_CMD (1 << 5) /* sr, c */
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
/*
|
|
* 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_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 */
|
|
|
|
/*
|
|
* EXT_CSD field definitions
|
|
*/
|
|
|
|
#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_26 (1<<0) /* Card can run at 26MHz */
|
|
#define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */
|
|
|
|
#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 */
|
|
|
|
/*
|
|
* 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 /* MMC_MMC_PROTOCOL_H */
|
|
|