Subversion Repositories openrisc_2011-10-31

#ifndef _SDC_H

#define _SDC_H

#include "board.h"

#include "typedefs.h"

#include "spr-defs.h"

#include "support.h"

//#include <stdlib.h>

#define REG32(add) *((volatile unsigned long *)(add))

#define DBGA(stuff...)  //      printf("SDC_HAL:" stuff)

/* Memory card sector size */

#define SECTOR_SIZE 512

#define SECTOR_TO_BLOCK(a) (a << 9)

//SD_CONTROLLER Register

#define WORD_0 0x00

#define WORD_1 0x40

#define WORD_2 0x80

#define WORD_3 0xC0

#define SD_ARG 0x00

#define SD_COMMAND 0x04 

#define SD_STATUS 0x08

#define SD_RESP1 0x0c

#define SD_CTRL 0x1c

#define SD_BLOCK 0x20

#define SD_POWER 0x24

#define SD_SOFTWARE_RST 0x28

#define SD_TIMEOUT 0x2c

#define SD_NORMAL_INT_STATUS 0x30

#define SD_ERROR_INT_STATUS 0x34

#define SD_NORMAL_INT_STATUS_ENABLE 0x38

#define SD_ERROR_INT_STATUS_ENABLE 0x3c

#define SD_NOMAL_INT_SIGNAL_ENABLE  0x40

#define SD_ERROR_INT_SIGNAL_ENABLE  0x44

#define SD_CAPABILITY  0x48

#define SD_CLOCK_D  0x4c

#define BD_STATUS 0x50

#define BD_ISR 0x54

#define BD_RX 0x60

#define BD_TX 0x80

#define CLK_CARD 25000000

#define CLK_CPU 25000000

#define CMD_TIMEOUT_MS ((CLK_CPU/CLK_CARD) * 512)

#define MAX_POL 1000

#define SD_REG(REG)  REG32(SDC_CONTROLLER_BASE+REG) 

//Commands

#define CMD0 0x000 // software reset

#define CMD2 0x200

#define CMD3 0x300

#define CMD7 0x700

#define CMD8  0x800

#define CMD9  0x900  // ask card to send card speficic data (CSD)

#define CMD16  0x1000   // sets the block length used by the memory card

#define CMD17  0x1100 // read single block

#define ACMD41 0x2900

#define ACMD6 0x600

#define CMD55 0x3700

//CMD ARG

//CMD8

#define VHS  0x100 //2.7-3.6V

#define CHECK_PATTERN 0xAA

//ACMD41

#define BUSY 0x80000000

#define HCS 0x40000000

#define VOLTAGE_MASK 0xFFFFFF

//CMD7

#define READY_FOR_DATA 0x100

#define CARD_STATUS_STB  0x600

//Command setting

#define CICE 0x10

#define CRCE 0x08

#define RSP_48 0x2

#define RSP_146 0x1

//Status Mask

//Normal interupt status

#define CMD_COMPLETE 0x1

#define EI 0x8000

//Error interupt status

#define CMD_TIMEOUT 0x1

#define CCRC 0x1

#define CIE  0x8

#define CID_MID_MASK 0x7F8000

#define CID_OID_MASK 0x7FFF             

#define CID_B1 0x7F800000

#define CID_B2 0x7F8000

#define CID_B3 0x7F80

#define CID_B4 0x7F

#define RCA_RCA_MASK 0xFFFF0000

#define WRITE_OP  1

#define READ_OP  0

typedef struct {

        unsigned long int pad:18;

        unsigned  int cmdi:6;

        unsigned  int cmdt:2;

        unsigned  int dps:1;

        unsigned  int cice:1;

        unsigned  int crce:1;

        unsigned  int  rsvd:1;

        unsigned  int rts:2;

}sd_controller_csr ;

typedef struct {

        char mid:8;

        short oid:16;

        unsigned char pnm[5];

        char  prv:8;

        int psn:32;

        char rsv:4;

        short mdt:12;

}sd_card_cid;

typedef struct {

}sd_card_csd;

typedef struct  {

        int rca;

        int Voltage_window;

        char HCS_s;

    char Active;

        char phys_spec_2_0;

         int  cid_reg;

        sd_card_csd * csd_reg;

}sd_card ;

extern volatile sd_card dev;

unsigned char sd_wait_rsp(void);

int setup_bd_transfer(boolean direction, int block_addr, volatile unsigned char *buff);

void reset_card(void);

int finnish_bd_transfer(void);

int sd_setup_transfer (sd_card sd_card_0);

int setBLockLength(void);

int memCardInit(void);

#endif // _SDC_H