/* get the sector offset */
MV_U32 mvFlashSecOffsGet(MV_FLASH_INFO *pFlash, MV_U32 secNum)
{
if((NULL == pFlash)|| (secNum > mvFlashNumOfSecsGet(pFlash)))
return 0;
return pFlash->sector[secNum].baseOffs;
}
/* get the lock status of a sector in the flash */
MV_BOOL mvFlashSecLockGet(MV_FLASH_INFO *pFlash, MV_U32 secNum)
{
if((NULL == pFlash)|| (secNum > mvFlashNumOfSecsGet(pFlash)) )
return MV_FALSE;
return pFlash->sector[secNum].protect;
}
/*******************************************************************************
* flashIsSecErased - Check if a given Sector is erased.
*
* DESCRIPTION:
* Go over the sector and check if its entire data is 0xFF.
* INPUT:
* secNum - sector Number.
* pFlash - flash information.
*
* OUTPUT:
* None
*
* RETURN:
* MV_BAD_PARAM if one of the inputs values is illegal,
* MV_TRUE if sector is already erased,
* MV_FALSE otherwise.
*
*******************************************************************************/
MV_BOOL flashIsSecErased(MV_FLASH_INFO *pFlash, MV_U32 secNum)
{
MV_U32 i;
DB(mvOsPrintf("Flash: flashIsSecErased. \n"));
if((NULL == pFlash) || (secNum >= mvFlashNumOfSecsGet(pFlash)) )
return MV_BAD_PARAM;
/* reset the flash */
flashReset(pFlash);
/* go over the sector */
for(i = mvFlashSecOffsGet(pFlash,secNum);
i < mvFlashSecOffsGet(pFlash,secNum) + mvFlashSecSizeGet(pFlash,secNum);
i+= 4)
{
if(mvFlash32Rd(pFlash,i) != FLASH_WR_ERASED )
{
DB(mvOsPrintf("Flash: Not erased addr %x is %x \n",
i ,mvFlash32Rd(pFlash,i)));
return MV_FALSE;
}
}
return MV_TRUE;
}
/*******************************************************************************
* mvFlash32Wr - Write 32bit (word) to flash.
*
* DESCRIPTION:
* This function writes 32bit data to a given flash offset.
*
* INPUT:
* pFlash - Flash identifier structure (flash cockie).
* offset - Offset from flash base address.
* data - 32bit data to be written to flash.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_BAD_PARAM if one of the inputs values is illegal,
* MV_OK if write completed successfully,
* MV_FAIL otherwise (e.g. sector protected).
*
*******************************************************************************/
MV_STATUS mvFlash32Wr(MV_FLASH_INFO *pFlash, MV_U32 offset, MV_U32 data)
{
MV_U32 i, status = MV_OK, temp,secNum;
DB(mvOsPrintf("Flash: mvFlash32Wr offset %x data %x \n",offset,data));
/* check that the offset is aligned to 32 bit */
if((NULL == pFlash) || (offset % 4))
return MV_BAD_PARAM;
secNum = mvFlashInWhichSec(pFlash,offset);
DB(mvOsPrintf("Flash: mvFlashProg \n"));
/* check if offset is in flash range */
if( secNum >= mvFlashNumOfSecsGet(pFlash))
{
DB(mvOsPrintf("Flash: mvFlashProg offset out of flash range \n"));
return MV_BAD_PARAM;
}
/* check if sector is locked */
if(MV_TRUE == mvFlashSecLockGet(pFlash, secNum) )
{
mvOsPrintf("Flash: ERROR mvFlashProg protected sector.\n");
return MV_FAIL;
}
/* check if offset is erased enough */
if((mvFlash32Rd(pFlash, offset) & data) != data )
{
mvOsPrintf("%s ERROR: offset 0x%x (sector %d) isn't erased !!!.\n",
__FUNCTION__, offset, secNum);
return MV_FAIL;
}
/* bus width is 32 bit */
if(mvFlashBusWidthGet(pFlash) == 4)
{
data = MV_32BIT_BE(data);
status = mvFlashProg(pFlash, offset,data);
}
/* bus width is 16 bit */
else if(mvFlashBusWidthGet(pFlash) == 2)
{
for(i = 0; i < 2; i++)
{
/* 0x44556677 -> [44][55][66][77] */
temp = MV_16BIT_BE(((data >> (16*(1-i))) & FLASH_MASK_16BIT));
if(MV_OK != mvFlashProg(pFlash, offset + (i*2), temp) )
{
status = MV_FAIL;
break;
}
}
}
/* bus width is 8 bit */
else if(mvFlashBusWidthGet(pFlash) == 1)
/*******************************************************************************
* mvFlashErase - Completly Erase a flash.
*
* DESCRIPTION:
* This function completly erase the given flash, by erasing all the
* flash sectors one by one (Currently there is no support for HW
* flash erase).
*
* INPUT:
* pFlash - Flash identifier structure.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_BAD_PARAM if pFlash is NULL,
* MV_OK if erased completed successfully,
* MV_FAIL otherwise.
*
*******************************************************************************/
MV_STATUS mvFlashErase(MV_FLASH_INFO *pFlash)
{
MV_U32 i;
if (NULL == pFlash)
return MV_BAD_PARAM;
DB(mvOsPrintf("Flash: mvFlashErase \n"));
/* erase all sectors in the flash one by one */
for (i = 0; i < mvFlashNumOfSecsGet(pFlash); i++) {
if (MV_OK != mvFlashSecErase(pFlash, i))
return MV_FAIL;
}
return MV_OK;
}
/*******************************************************************************
* mvFlashInWhichSec - Return which Sector rap the offset address.
*
* DESCRIPTION:
*
* INPUT:
* pFlash - Flash identifier structure.
* offset - offset address.
*
* OUTPUT:
* None
*
* RETURN:
* MV_U32 - The Sector Number that the offset sits in.
* BAD_SEC_NUM if not found.
*
*******************************************************************************/
MV_U32 mvFlashInWhichSec(MV_FLASH_INFO *pFlash, MV_U32 offset)
{
MV_U32 secNum;
if(NULL == pFlash)
return 0;
for( secNum = 0; secNum < mvFlashNumOfSecsGet(pFlash); secNum++){
if((offset >= mvFlashSecOffsGet(pFlash, secNum)) &&
(offset < mvFlashSecOffsGet(pFlash, secNum) +
mvFlashSecSizeGet(pFlash, secNum)) )
{
return secNum;
}
}
/* return illegal sector Number */
return FLASH_BAD_SEC_NUM;
}
/*******************************************************************************
* mvFlashSecErase - Erase a flash sector.
*
* DESCRIPTION:
* This function checks if the sector isn't protected and if the sector
* isn't already erased.
*
* INPUT:
* pFlash - Flash identifier structure.
* sectorNum - secrot number to erase.
*
* OUTPUT:
* None.
*
* RETURN:
* MV_BAD_PARAM if one of the inputs values is illegal,
* MV_OK if erased completed successfully,
* MV_FAIL otherwise (e.g. sector protected).
*
*******************************************************************************/
MV_STATUS mvFlashSecErase(MV_FLASH_INFO *pFlash, MV_U32 sectorNum)
{
MV_U32 status;
DB(mvOsPrintf("Flash: mvFlashSecErase \n"));
/* check parametrs values */
if((NULL == pFlash) || (sectorNum >= mvFlashNumOfSecsGet(pFlash)) ) {
return MV_BAD_PARAM;
}
/* check if sector is locked */
if(MV_TRUE == mvFlashSecLockGet(pFlash, sectorNum))
{
mvOsPrintf("Flash: ERROR mvFlashSecErase protected sector.\n");
return MV_FAIL;
}
/* check if already erased */
if(MV_TRUE == flashIsSecErased(pFlash,sectorNum))
{
DB(mvOsPrintf("Flash: FlashSecErase sector already erased \n"));
return MV_OK;
}
/* erase sector using the Flash Ven Alg. */
switch(mvFlashVenIdGet(pFlash))
{
case INTEL_MANUF: /* INTEL/MT */
status = intelFlashSecErase(pFlash,sectorNum);
break;
case AMD_MANUF:
case STM_MANUF:
case SST_MANUF:
status = amdFlashSecErase(pFlash,sectorNum);
break;
default:
mvOsPrintf("Flash: ERROR mvFlashErase. unsupported flash vendor\n");
return MV_FAIL;
}
/* reset the flash */
flashReset(pFlash);
return status;
}
/*******************************************************************************
* flashPrint - Print flash information structure.
*
* DESCRIPTION:
* Prints all the feilds in the flash info structure.
*
* INPUT:
* pFlash - Flash information.
*
* OUTPUT:
* None
*
* RETURN:
* None
*
*******************************************************************************/
MV_VOID flashPrint(MV_FLASH_INFO *pFlash)
{
MV_U32 i;
if ((NULL == pFlash) || (mvFlashVenIdGet(pFlash) == 0))
{
mvOsOutput ("missing or unknown FLASH type\n");
return;
}
switch (mvFlashVenIdGet(pFlash)) {
case STM_MANUF:
mvOsOutput ("STM ");
break;
case AMD_MANUF:
mvOsOutput ("AMD ");
break;
case FUJ_MANUF:
mvOsOutput ("FUJITSU ");
break;
case INTEL_MANUF:
mvOsOutput ("INTEL ");
break;
case SST_MANUF:
mvOsOutput ("SST ");
break;
case MX_MANUF:
mvOsOutput ("MX ");
break;
default:
mvOsOutput ("Unknown Vendor 0x%x",mvFlashVenIdGet(pFlash));
break;
}
switch (mvFlashDevIdGet(pFlash)) {
case AMD_FID_LV040B:
mvOsOutput ("AM29LV040B (4 Mbit, bottom boot sect)");
break;
case AMD_FID_LV400B:
mvOsOutput ("AM29LV400B (4 Mbit, bottom boot sect)");
break;
case AMD_FID_LV400T:
mvOsOutput ("AM29LV400T (4 Mbit, top boot sector)");
break;
case AMD_FID_LV800B:
mvOsOutput ("AM29LV800B (8 Mbit, bottom boot sect)");
break;
case AMD_FID_LV800T:
mvOsOutput ("AM29LV800T (8 Mbit, top boot sector)");
break;
case AMD_FID_LV160B:
mvOsOutput ("AM29LV160B (16 Mbit, bottom boot sect)");
break;
case AMD_FID_LV160T:
mvOsOutput ("AM29LV160T (16 Mbit, top boot sector)");
break;
case AMD_FID_LV320B:
mvOsOutput ("AM29LV320B (32 Mbit, bottom boot sect)");
break;
case AMD_FID_LV320T:
mvOsOutput ("AM29LV320T (32 Mbit, top boot sector)");
break;
case STM_FID_29W040B:
mvOsOutput ("M29W040B (4Mbit = 512K x 8) ");
break;
case INTEL_FID_28F320J3A:
mvOsOutput ("28F320J3A (32 Mbit)");
break;
case INTEL_FID_28F640J3A:
mvOsOutput ("28F640J3A (64 Mbit)");
break;
case INTEL_FID_28F128J3A:
mvOsOutput ("28F128J3A (128 Mbit)");
break;
case INTEL_FID_28F128P30T:
mvOsOutput ("28F128P30 TOP (128 Mbit)");
break;
case INTEL_FID_28F128P30B:
mvOsOutput ("28F128P30 BOTTOM (128 Mbit)");
break;
case INTEL_FID_28F256P30T:
mvOsOutput ("28F256P30 TOP (256 Mbit)");
break;
#if defined (DB_88F1281)
case INTEL_FID_28F256P30B:
mvOsOutput ("28F256P30 BOTTOM (128 Mbit)");
break;
#else
case INTEL_FID_28F256P30B:
mvOsOutput ("28F256P30 BOTTOM (256 Mbit)");
break;
#endif
case SST_39VF_020:
mvOsOutput ("SST39VF020 (2 Mbit)");
break;
default:
mvOsOutput ("Unknown Chip Type id 0x%x",mvFlashDevIdGet(pFlash));
break;
}
if(mvFlashNumOfDevGet(pFlash) > 1)
mvOsOutput(" X %d",mvFlashNumOfDevGet(pFlash));
mvOsOutput("\nSize: ");
sizePrint(mvFlashSizeGet(pFlash)," in ");
mvOsOutput("%d Sectors\n",mvFlashNumOfSecsGet(pFlash));
mvOsOutput("Bus Width: %dbit, device Width: %dbit, type: ",
(8 * mvFlashBusWidthGet(pFlash)), (8 * mvFlashDevWidthGet(pFlash)));
switch (mvFlashSecTypeGet(pFlash)) {
case TOP: mvOsOutput ("TOP"); break;
case BOTTOM: mvOsOutput ("BOTTOM"); break;
case REGULAR: mvOsOutput ("REGULAR"); break;
default: mvOsOutput ("Unknown Type"); break;
}
mvOsOutput(".\n");
mvOsOutput (" Sector Start Addresses:");
for (i=0; i<mvFlashNumOfSecsGet(pFlash); ++i) {
if ((i % 5) == 0)
mvOsOutput ("\n ");
mvOsOutput (" %08lX%s",
(mvFlashSecOffsGet(pFlash, i) + mvFlashBaseAddrGet(pFlash)),
mvFlashSecLockGet(pFlash,i) ? " (RO)" : " "
);
}
mvOsOutput("\n");
return;
}