smi.h.svn-base

Spearhead2000 的 USB驱动程序

/*****************************************************************************/
/*                                                                           */
/* -- File:                  SMI.h                                           */
/* -- Author:                Maurizio Costagliola      			     */
/* -- Description:           Header SMI                                      */
/*                                                                           */
/* -- Modification History: - 1.0                                            */
/*****************************************************************************/

#ifdef __cplusplus
extern  "C" {           /* C declarations in C++ */
#endif


#define SMI_BASE      0x1000F000

#define FLASH_START_ADDRESS 0x96000000
#define SMIBANK0_BASE (FLASH_START_ADDRESS + 0x00000000)
#define SMIBANK1_BASE (FLASH_START_ADDRESS + 0x01000000)
#define SMIBANK2_BASE (FLASH_START_ADDRESS + 0x02000000)
#define SMIBANK3_BASE (FLASH_START_ADDRESS + 0x03000000)
#define FLASH_BANK_SIZE 0x00800000

#define CHECK_TFF 0x00000100
#define CHECK_WCF 0x00000200

#define BANK0 0
#define BANK1 1
#define BANK2 2
#define BANK3 3

typedef struct SMIController
{

  unsigned int SMI_CR1;	/* 1000F000 */
  unsigned int SMI_CR2;	/* 1000F004 */
  unsigned int SMI_SR; 	/* 1000F008 */
  unsigned int SMI_TR; 	/* 1000F00C */
  unsigned int SMI_RR; 	/* 1000F010 */

} SMIController;


#define WM0           0x00001000 /* WM Bank 0 */
#define WM1           0x00002000 /* WM Bank 1 */
#define WM2           0x00004000 /* WM Bank 2 */
#define WM3           0x00008000 /* WM Bank 3 */
#define SMICntl ((volatile struct SMIController*) (SMI_BASE))

/* Fields position */


/* Control values */

/* FLASH MEMORIES */
#define ST_M25P64     0x00172020

/* STATUS_REG */
#define INT_WCF_CLR   0xFFFFFDFF /* clear: WCF clear */
#define INT_TFF_CLR   0xFFFFFEFF /* clear: TFF clear */
#define WIP_BIT       0x00000001 /* WIP Bit of SPI SR on SMI SR */
#define WEL_BIT       0x00000002 /* WEL Bit of SPI SR on SMI SR */
#define RSR           0x00000005 /* Read Status regiser */
#define TFF           0x00000100 /* Transfer Finished FLag */
#define WCF           0x00000200 /* Transfer Finished FLag */
#define ERF1          0x00000400 /* Error Flag 1 */
#define ERF2          0x00000800 /* Error Flag 2 */

/* CONTROL REG 1 */
#define BANK_EN       0x0000000F /* enables all banks */
#define DSEL_TIME     0x00000050 /* Deselect time 5+1 SMI_CK periods */
#define PRESCAL5      0x00000500 /* AHB_CK prescaling value */
#define PRESCALA      0x00000A00 /* AHB_CK prescaling value */
#define SW_MODE       0x10000000 /* enables SW Mode */
#define WB_MODE       0x20000000 /* Write Burst Mode */
#define FAST_MODE     0x00008000 /* Fast Mode */

/* CONTROL REG 2 */
#define RD_STATUS_REG 0x00000400 /* reads status reg */
#define WE            0x00000800 /* Write Enable */
#define BANK0_SEL     0x00000000 /* Select Banck0 */
#define BANK1_SEL     0x00001000 /* Select Banck1 */
#define BANK2_SEL     0x00002000 /* Select Banck2 */
#define BANK3_SEL     0x00003000 /* Select Banck3 */
#define SEND          0x00000080 /* Send data */
#define TX_LEN_1      0x00000001 /* data length = 1 byte */
#define TX_LEN_2      0x00000002 /* data length = 2 byte */
#define TX_LEN_3      0x00000003 /* data length = 3 byte */
#define TX_LEN_4      0x00000004 /* data length = 4 byte */
#define RX_LEN_1      0x00000010 /* data length = 1 byte */
#define RX_LEN_2      0x00000020 /* data length = 2 byte */
#define RX_LEN_3      0x00000030 /* data length = 3 byte */
#define RX_LEN_4      0x00000040 /* data length = 4 byte */
#define TFIE          0x00000100 /* Transmission Flag Interrupt Enable */
#define WCIE          0x00000200 /* Write Complete Interrupt Enable */

/* TR REG */
#define READ_ID       0x0000009F /* Read Identification */
#define BULK_ERASE    0x000000C7 /* BULK erase */
#define SECTOR_ERASE  0x000000D8 /* SECTOR erase */
#define BANK_SIZE     64 * 1024  /* Specific Bank Size = 64KBytes */
#define WRITE_ENABLE  0x00000006 /* Wenable command to FLASH */

extern void smi_init(void);
extern void smi_prog(void);
extern void smi_read(unsigned int*, unsigned int*, unsigned int, unsigned int);
extern int  smi_write(unsigned int*, unsigned int*, unsigned int, unsigned int);
extern int  smi_bank_erase(unsigned int);
extern int  smi_sector_erase(unsigned int, unsigned int);
extern void smi_test(void);
extern unsigned int smi_read_id(unsigned int bank);
extern unsigned int smi_read_sr(unsigned int bank);

#ifdef __cplusplus
} /* C declarations in C++ */
#endif