systffs.c

intel xscale 425的bsp源码

    FLSocket vol		/* pointer identifying drive */
    )
    {
    /* Physical base as a 4K page */

    if (vol.serialNo == 0)
    {
    	vol.window.baseAddress = TFFS_BASE_ADRS >> 12;
    	flSetWindowSize (&vol, TFFS_WINDOW_SIZE >> 12);
    }
    else if(vol.serialNo == 1)
    {
    	#if defined(FLASH_PARTITION2) && defined(INCLUDE_FLASH_NO2)
    	vol.window.baseAddress = TFFS_BASE_ADRS1 >> 12;
    	flSetWindowSize (&vol, TFFS_WINDOW_SIZE1 >> 12);
    	#endif	/* defined(FLASH_PARTITION2) && defined(INCLUDE_FLASH_NO2) by luhb */
    	
    	#if defined(FLASH_PARTITION2) && !defined(INCLUDE_FLASH_NO2)
    	vol.window.baseAddress = TFFS_BASE_ADRS1 >> 12;
    	flSetWindowSize (&vol, TFFS_WINDOW_SIZE1 >> 12);
    	#endif	/* defined(FLASH_PARTITION2) && !defined(INCLUDE_FLASH_NO2) by luhb 2007-03-27 */
    	
    	#if !defined(FLASH_PARTITION2) && defined(INCLUDE_FLASH_NO2)
    	vol.window.baseAddress = TFFS_BASE_ADRS_NO2 >> 12;
    	flSetWindowSize (&vol, TFFS2_WINDOW_SIZE >> 12);
    	#ifdef	TFFS_DEBUG
    	printf("TFFS_DEBUG:\n void simmSetWindow():bsp/sysTffs.c vol.serialNo = %d,SIZE = %X\n", vol.serialNo, TFFS2_WINDOW_SIZE);
    	#endif
    	#endif	/* !defined(FLASH_PARTITION2) && defined(INCLUDE_FLASH_NO2) by luhb 2007-03-23 */
    }
    else if(vol.serialNo == 2)
    {
    	#ifdef	INCLUDE_FLASH_NO2
    	vol.window.baseAddress = TFFS_BASE_ADRS_NO2 >> 12;
    	flSetWindowSize (&vol, TFFS2_WINDOW_SIZE >> 12);
    	#endif	/* INCLUDE_FLASH_NO2 by luhb 2007-03-23 */
    	#ifdef	TFFS_DEBUG
    	printf("TFFS_DEBUG:\n void simmSetWindow():bsp/sysTffs.c vol.serialNo = %d\n", vol.serialNo);
    	#endif
    }
    
#ifdef	TFFS_DEBUG
    	printf("TFFS_DEBUG:\n void simmSetWindow():bsp/sysTffs.c vol.serialNo = %d\n",vol.serialNo);
#endif	/* TFFS_DEBUG by luhb 2007-03-16 */

    }

/*******************************************************************************
*
* simmSetMappingContext - sets the window mapping register to a card address
*
* This routine sets the window mapping register to a card address.
* The window should be set to the value of 'vol.window.currentPage',
* which is the card address divided by 4 KB. An address over 128MB,
* (page over 32K) specifies an attribute-space address.
*
* The page to map is guaranteed to be on a full window-size boundary.
*
* RETURNS: N/A
*/

LOCAL void simmSetMappingContext
    (
    FLSocket vol,		/* pointer identifying drive */
    unsigned page		/* page to be mapped */
    )
    {
    }

/*******************************************************************************
*
* simmGetAndClearCardChangeIndicator - return the hardware card-change indicator
*
* This routine returns the hardware card-change indicator and clears it if set.
*
* RETURNS: FALSE, or TRUE if the card has been changed
*/

LOCAL FLBoolean simmGetAndClearCardChangeIndicator
    (
    FLSocket vol		/* pointer identifying drive */
    )
    {
    return (FALSE);
    }

/*******************************************************************************
*
* simmWriteProtected - return the write-protect state of the media
*
* This routine returns the write-protect state of the media
*
* RETURNS: FALSE, or TRUE if the card is write-protected
*/

LOCAL FLBoolean simmWriteProtected
    (
    FLSocket vol		/* pointer identifying drive */
    )
    {
    return (FALSE);
    }
#endif	/* INCLUDE_SOCKET_SIMM */



/*******************************************************************************
*
* flFitInSocketWindow - check whether the flash array fits in the socket window
*
* This routine checks whether the flash array fits in the socket window.
*
* RETURNS: A chip size guaranteed to fit in the socket window.
*/

long int flFitInSocketWindow 
    (
    long int chipSize,		/* size of single physical chip in bytes */
    int      interleaving,	/* flash chip interleaving (1,2,4 etc) */
    long int windowSize		/* socket window size in bytes */
    )
    {
    if (chipSize*interleaving > windowSize) /* doesn't fit in socket window */
        {
        int  roundedSizeBits;

        /* fit chip in the socket window */
        chipSize = windowSize / interleaving;

        /* round chip size at powers of 2 */
        for (roundedSizeBits = 0; (0x1L << roundedSizeBits) <= chipSize;
             roundedSizeBits++)
	    ;

        chipSize = (0x1L << (roundedSizeBits - 1));
        }

    return (chipSize);
    }

#if	FALSE
/*******************************************************************************
*
* sysTffsCpy - copy memory from one location to another
*
* This routine copies <size> characters from the object pointed
* to by <source> into the object pointed to by <destination>. If copying
* takes place between objects that overlap, the behavior is undefined.
*
* INCLUDE FILES: string.h
*
* RETURNS: A pointer to <destination>.
*
* NOMANUAL
*/

void * sysTffsCpy
    (
    void *       destination,   /* destination of copy */
    const void * source,        /* source of copy */
    size_t       size           /* size of memory to copy */
    )
    {
    bcopy ((char *) source, (char *) destination, (size_t) size);
    return (destination);
    }

/*******************************************************************************
*
* sysTffsSet - set a block of memory
*
* This routine stores <c> converted to an `unsigned char' in each of the
* elements of the array of `unsigned char' beginning at <m>, with size <size>.
*
* INCLUDE FILES: string.h
*
* RETURNS: A pointer to <m>.
*
* NOMANUAL
*/

void * sysTffsSet
    (
    void * m,                   /* block of memory */
    int    c,                   /* character to store */
    size_t size                 /* size of memory */
    )
    {
    bfill ((char *) m, (int) size, c);
    return (m);
    }
#endif	/* FALSE */

/*******************************************************************************
*
* flDelayMsecs - wait for specified number of milliseconds
*
* This routine waits for specified number of milliseconds.
*
* RETURNS: N/A
*
* NOMANUAL
*/

void flDelayMsecs
    (
    unsigned milliseconds       /* milliseconds to wait */
    )
    {
    UINT32 ix;
    UINT32 iy = 1;
    UINT32 iz = 2;

    /* it doesn't count time consumed in interrupt level */

    for (ix = 0; ix < milliseconds; ix++)
        for (ix = 0; ix < sysTffsMsecLoopCount; ix++)
	    {
	    tickGet ();			/* dummy */
	    iy = KILL_TIME_FUNC;	/* consume time */
	    }
    }

/*******************************************************************************
*
* flDelayLoop - consume the specified time
*
* This routine consumes the specified time.
*
* RETURNS: N/A
*/

void flDelayLoop 
    (
    int  cycles
    )
    {
    while (--cycles)
	;
    }

/*******************************************************************************
*
* sysTffsFormat - format the flash memory above an offset
*
* This routine formats the flash memory.  Because this function defines 
* the symbolic constant, HALF_FORMAT, the lower half of the specified flash 
* memory is left unformatted.  If the lower half of the flash memory was
* previously formated by TrueFFS, and you are trying to format the upper half,
* you need to erase the lower half of the flash memory before you format the
* upper half.  To do this, you could use:
* .CS
* tffsRawio(0, 3, 0, 8)  
* .CE
* The first argument in the tffsRawio() command shown above is the TrueFFS 
* drive number, 0.  The second argument, 3, is the function number (also 
* known as TFFS_PHYSICAL_ERASE).  The third argument, 0, specifies the unit 
* number of the first erase unit you want to erase.  The fourth argument, 8,
* specifies how many erase units you want to erase.  
*
* RETURNS: OK, or ERROR if it fails.
*/

STATUS sysTffsFormat (void)
    {
    STATUS status;
    tffsDevFormatParams params = 
	{

#undef	HALF_FORMAT	/* lower 1.0MB for bootimage, upper 3.0MB for TFFS */
#ifdef	HALF_FORMAT
	{0x100000l, 99, 1, 0x10000l, NULL, {0,0,0,0}, NULL, 2, 0, NULL},
#else
	{0x000000l, 99, 1, 0x10000l, NULL, {0,0,0,0}, NULL, 2, 0, NULL},
#endif	/* HALF_FORMAT */
	FTL_FORMAT
	};

    /* we assume that the drive number 0 is SIMM */
    params.formatParams.percentUse = 98; /*100 - (NV_RAM_SIZE*100/TFFS_SIZE + 1) - 1;*/	/*DONLEO:FOR NVRAM USE*/
    sysFlashWriteEnable();	
    sysFlashErase1(params.formatParams.bootImageLen);
    status = tffsDevFormat (0, (int)&params);
    return (status);
    }

STATUS sysTffsFormat1 (void)
    {
    STATUS status;
    tffsDevFormatParams params = 
	{
		{0x000000l, 99, 1, 0x10000l, NULL, {0,0,0,0}, NULL, 2, 0, NULL},FTL_FORMAT
	};

    /* we assume that the drive number 0 is SIMM */
    params.formatParams.percentUse = 98; /*100 - (NV_RAM_SIZE*100/TFFS_SIZE + 1) - 1;*/	/*DONLEO:FOR NVRAM USE*/
    sysFlashWriteEnable();	
/*    sysFlashErase2(0);*/
    status = tffsDevFormat (1, (int)&params);
    return (status);
    }

STATUS sysTffsFormat2 (void)
    {
    STATUS status;
    tffsDevFormatParams params = 
	{
		{0x000000l, 99, 1, 0x10000l, NULL, {0,0,0,0}, NULL, 2, 0, NULL},FTL_FORMAT
	};

    /* we assume that the drive number 0 is SIMM */
    params.formatParams.percentUse = 98; /*100 - (NV_RAM_SIZE*100/TFFS_SIZE + 1) - 1;*/	/*DONLEO:FOR NVRAM USE*/
    sysFlashWriteEnable();	
/*    sysFlashErase2(0);*/
    status = tffsDevFormat (2, (int)&params);
    return (status);
    }

/*donleo1121, add some function for lock and unlock */
#define FLASH28_CMD_CONFIGURATION_SETUP	(FLASH_DEF) 0x60606060
#define FLASH28_CMD_UNLOCK		(FLASH_DEF) 0xd0d0d0d0
#define FLASH28_STAT_WSMS		(FLASH_DEF) 0x00800080
#define FLASH28_CMD_READ_STATUS		(FLASH_DEF) 0x70707070
#define	FLASH28_CMD_RESET		(FLASH_DEF) 0xffffffff

int iFirstFlash=0;
int sysFlashWriteEnable1()
{

	int i;
	volatile FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS);
	if(iFirstFlash==1) return OK; 
	iFirstFlash=1;
	for(i=0;i<TFFS_SIZE;i+= 0x20000) {	/*donleo: bit related*/
		
		pFA = FLASH_CAST (TFFS_BASE_ADRS + i);
		*pFA = FLASH28_CMD_CONFIGURATION_SETUP;
		*pFA = FLASH28_CMD_UNLOCK;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	}
	*pFA = FLASH28_CMD_RESET;
	return OK;
}
int sysFlashWriteDisable1()
{
	
	int i;
	volatile FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS);
	if(iFirstFlash==1) return OK;
	
	for(i=0;i<TFFS_SIZE;i+= 0x20000) {	/*donleo :bit width*/
		pFA = FLASH_CAST (TFFS_BASE_ADRS + i) ;
		*pFA = FLASH28_CMD_RESET;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	    	*pFA = FLASH28_CMD_RESET;
	}
	*pFA = FLASH28_CMD_RESET;
	return OK;

}

int sysFlashErase1(int iOffset)
{

		FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS + iOffset);
		*pFA = SETUP_ERASE;
		*pFA = CONFIRM_ERASE;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	*pFA = FLASH28_CMD_RESET;
	return OK;
}

#ifdef	FLASH_PARTITION2
int iFirstFlash1=0;
int sysFlashWriteEnable2()
{

	int i;
	volatile FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS1);
	if(iFirstFlash1==1) return OK; 
	iFirstFlash1=1;
	for(i=0;i<TFFS_SIZE1;i+= 0x20000) {
		
		pFA = FLASH_CAST (TFFS_BASE_ADRS1 + i);
		*pFA = FLASH28_CMD_CONFIGURATION_SETUP;
		*pFA = FLASH28_CMD_UNLOCK;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	}
	*pFA = FLASH28_CMD_RESET;
	return OK;
}

int sysFlashWriteDisable2()
{
	
	int i;
	volatile FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS1);
	if(iFirstFlash1==1) return OK;
	
	for(i=0;i<TFFS_SIZE1;i+= 0x20000) {	/*bit width by luhb */
		pFA = FLASH_CAST (TFFS_BASE_ADRS1 + i) ;
		*pFA = FLASH28_CMD_RESET;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	    	*pFA = FLASH28_CMD_RESET;
	}
	*pFA = FLASH28_CMD_RESET;
	return OK;

}

int sysFlashErase2(int iOffset)
{

		FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS1 + iOffset);
		*pFA = SETUP_ERASE;
		*pFA = CONFIRM_ERASE;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	*pFA = FLASH28_CMD_RESET;
	return OK;
}
#endif	/* FLASH_PARTITION2 by luhb 2007-03-21 */

#ifdef	INCLUDE_FLASH_NO2
int iFirstFlashNO2=0;
int sysFlashWriteEnableNO2()
{

	int i;
	volatile FLASH_DEF * pFA = FLASH_CAST (TFFS_BASE_ADRS_NO2);
	if(iFirstFlashNO2==1) return OK; 
	iFirstFlashNO2=1;
	for(i=0;i<TFFS_SIZE_NO2;i+= 0x20000) {	/* bit related by luhb */
		
		pFA = FLASH_CAST (TFFS_BASE_ADRS_NO2 + i);
		*pFA = FLASH28_CMD_CONFIGURATION_SETUP;
		*pFA = FLASH28_CMD_UNLOCK;
	    do
		*pFA = FLASH28_CMD_READ_STATUS;
	    while ((*pFA & FLASH28_STAT_WSMS) != FLASH28_STAT_WSMS);
	}
	*pFA = FLASH28_CMD_RESET;
	return OK;
}

#endif	/* INCLUDE_FLASH_NO2 by luhb 2007-03-21 */