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*******************************************************************************/

#include "mvCommon.h"
#include "mvOs.h"
#include "ctrlEnv/mvCtrlEnvSpec.h"
#include "mvSFlash.h"
#include "mvSFlashSpec.h"
#include "mvSysSFlash.h"


/*#define MV_DEBUG*/
#ifdef MV_DEBUG
#define DB(x) x
#else
#define DB(x)
#endif

/* Globals */
static MV_U32 flSize;
static MV_U32 cmndLength;
static MV_SFLASH_DEVICE_PARAMS sflash[] = {
    /* ST M25P32 SPI flash, 4MB, 64 sectors of 64K each */
    {
     MV_M25P_WREN_CMND_OPCD,
     MV_M25P_WRDI_CMND_OPCD,
     MV_M25P_RDID_CMND_OPCD,
     MV_M25P_RDSR_CMND_OPCD,
     MV_M25P_WRSR_CMND_OPCD,
     MV_M25P_READ_CMND_OPCD,
     MV_M25P_FAST_RD_CMND_OPCD,
     MV_M25P_PP_CMND_OPCD,
     MV_M25P_SE_CMND_OPCD,
     MV_M25P_BE_CMND_OPCD,
     MV_M25P_RES_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,    /* power save not supported */
     MV_M25P32_SECTOR_SIZE,
     MV_M25P32_SECTOR_NUMBER,
     MV_M25P_PAGE_SIZE,
     "ST M25P32",
     MV_M25PXXX_ST_MANF_ID,
     MV_M25P32_DEVICE_ID,
     MV_M25P32_MAX_SPI_FREQ,
     MV_M25P32_MAX_FAST_SPI_FREQ,
     MV_M25P32_FAST_READ_DUMMY_BYTES
    },
    /* ST M25P64 SPI flash, 8MB, 128 sectors of 64K each */
    {
     MV_M25P_WREN_CMND_OPCD,
     MV_M25P_WRDI_CMND_OPCD,
     MV_M25P_RDID_CMND_OPCD,
     MV_M25P_RDSR_CMND_OPCD,
     MV_M25P_WRSR_CMND_OPCD,
     MV_M25P_READ_CMND_OPCD,
     MV_M25P_FAST_RD_CMND_OPCD,
     MV_M25P_PP_CMND_OPCD,
     MV_M25P_SE_CMND_OPCD,
     MV_M25P_BE_CMND_OPCD,
     MV_M25P_RES_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,    /* power save not supported */
     MV_M25P64_SECTOR_SIZE,
     MV_M25P64_SECTOR_NUMBER,
     MV_M25P_PAGE_SIZE,
     "ST M25P64",
     MV_M25PXXX_ST_MANF_ID,
     MV_M25P64_DEVICE_ID,
     MV_M25P64_MAX_SPI_FREQ,
     MV_M25P64_MAX_FAST_SPI_FREQ,
     MV_M25P64_FAST_READ_DUMMY_BYTES
    },
    /* ST M25P128 SPI flash, 16MB, 64 sectors of 256K each */
    {
     MV_M25P_WREN_CMND_OPCD,
     MV_M25P_WRDI_CMND_OPCD,
     MV_M25P_RDID_CMND_OPCD,
     MV_M25P_RDSR_CMND_OPCD,
     MV_M25P_WRSR_CMND_OPCD,
     MV_M25P_READ_CMND_OPCD,
     MV_M25P_FAST_RD_CMND_OPCD,
     MV_M25P_PP_CMND_OPCD,
     MV_M25P_SE_CMND_OPCD,
     MV_M25P_BE_CMND_OPCD,
     MV_M25P_RES_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,    /* power save not supported */
     MV_M25P128_SECTOR_SIZE,
     MV_M25P128_SECTOR_NUMBER,
     MV_M25P_PAGE_SIZE,
     "ST M25P128",
     MV_M25PXXX_ST_MANF_ID,
     MV_M25P128_DEVICE_ID,
     MV_M25P128_MAX_SPI_FREQ,
     MV_M25P128_MAX_FAST_SPI_FREQ,
     MV_M25P128_FAST_READ_DUMMY_BYTES
    },
/* ST M25Q128 SPI flash, 16MB, 256 sectors of 64K each */
    {
     MV_M25P_WREN_CMND_OPCD,
     MV_M25P_WRDI_CMND_OPCD,
     MV_M25P_RDID_CMND_OPCD,
     MV_M25P_RDSR_CMND_OPCD,
     MV_M25P_WRSR_CMND_OPCD,
     MV_M25P_READ_CMND_OPCD,
     MV_M25P_FAST_RD_CMND_OPCD,
     MV_M25P_PP_CMND_OPCD,
     MV_M25P_SE_CMND_OPCD,
     MV_M25P_BE_CMND_OPCD,
     MV_M25P_RES_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,    /* power save not supported */
     MV_SFLASH_NO_SPECIFIC_OPCD,
     MV_M25Q128_SECTOR_SIZE,
     MV_M25Q128_SECTOR_NUMBER,
     MV_M25Q_PAGE_SIZE,
     "ST M25Q128",
     MV_M25PXXX_ST_MANF_ID,
     MV_M25Q128_DEVICE_ID,
     MV_M25Q128_MAX_SPI_FREQ,
     MV_M25Q128_MAX_FAST_SPI_FREQ,
     MV_M25Q128_FAST_READ_DUMMY_BYTES
    },
    /* Macronix MXIC MX25L6405 SPI flash, 8MB, 128 sectors of 64K each */
    {
     MV_MX25L_WREN_CMND_OPCD,
     MV_MX25L_WRDI_CMND_OPCD,
     MV_MX25L_RDID_CMND_OPCD,
     MV_MX25L_RDSR_CMND_OPCD,
     MV_MX25L_WRSR_CMND_OPCD,
     MV_MX25L_READ_CMND_OPCD,
     MV_MX25L_FAST_RD_CMND_OPCD,
     MV_MX25L_PP_CMND_OPCD,
     MV_MX25L_SE_CMND_OPCD,
     MV_MX25L_BE_CMND_OPCD,
     MV_MX25L_RES_CMND_OPCD,
     MV_MX25L_DP_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,
     MV_MX25L1605_SECTOR_SIZE,
     MV_MX25L1605_SECTOR_NUMBER,
     MV_MXIC_PAGE_SIZE,
     "MXIC MX25L1605",
     MV_MXIC_MANF_ID,
     MV_MX25L1605_DEVICE_ID,
     MV_MX25L1605_MAX_SPI_FREQ,
     MV_MX25L1605_MAX_FAST_SPI_FREQ,
     MV_MX25L1605_FAST_READ_DUMMY_BYTES
    },
    /* Macronix MXIC MX25L3205 SPI flash, 4MB, 64 sectors of 64K each */
    {
     MV_MX25L_WREN_CMND_OPCD,
     MV_MX25L_WRDI_CMND_OPCD,
     MV_MX25L_RDID_CMND_OPCD,
     MV_MX25L_RDSR_CMND_OPCD,
     MV_MX25L_WRSR_CMND_OPCD,
     MV_MX25L_READ_CMND_OPCD,
     MV_MX25L_FAST_RD_CMND_OPCD,
     MV_MX25L_PP_CMND_OPCD,
     MV_MX25L_SE_CMND_OPCD,
     MV_MX25L_BE_CMND_OPCD,
     MV_MX25L_RES_CMND_OPCD,
     MV_MX25L_DP_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,
     MV_MX25L3205_SECTOR_SIZE,
     MV_MX25L3205_SECTOR_NUMBER,
     MV_MXIC_PAGE_SIZE,
     "MXIC MX25L3205",
     MV_MXIC_MANF_ID,
     MV_MX25L3205_DEVICE_ID,
     MV_MX25L3205_MAX_SPI_FREQ,
     MV_MX25L3205_MAX_FAST_SPI_FREQ,
     MV_MX25L3205_FAST_READ_DUMMY_BYTES
    },
    /* Macronix MXIC MX25L6405 SPI flash, 8MB, 128 sectors of 64K each */
    {
     MV_MX25L_WREN_CMND_OPCD,
     MV_MX25L_WRDI_CMND_OPCD,
     MV_MX25L_RDID_CMND_OPCD,
     MV_MX25L_RDSR_CMND_OPCD,
     MV_MX25L_WRSR_CMND_OPCD,
     MV_MX25L_READ_CMND_OPCD,
     MV_MX25L_FAST_RD_CMND_OPCD,
     MV_MX25L_PP_CMND_OPCD,
     MV_MX25L_SE_CMND_OPCD,
     MV_MX25L_BE_CMND_OPCD,
     MV_MX25L_RES_CMND_OPCD,
     MV_MX25L_DP_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,
     MV_MX25L6405_SECTOR_SIZE,
     MV_MX25L6405_SECTOR_NUMBER,
     MV_MXIC_PAGE_SIZE,
     "MXIC MX25L6405",
     MV_MXIC_MANF_ID,
     MV_MX25L6405_DEVICE_ID,
     MV_MX25L6405_MAX_SPI_FREQ,
     MV_MX25L6405_MAX_FAST_SPI_FREQ,
     MV_MX25L6405_FAST_READ_DUMMY_BYTES
    },
    /* Macronix MXIC MX25L25635E SPI flash, 32MB, 512 sectors of 64K each */
    {
     MV_MX25L_WREN_CMND_OPCD,
     MV_MX25L_WRDI_CMND_OPCD,
     MV_MX25L_RDID_CMND_OPCD,
     MV_MX25L_RDSR_CMND_OPCD,
     MV_MX25L_WRSR_CMND_OPCD,
     MV_MX25L_READ_CMND_OPCD,
     MV_MX25L_FAST_RD_CMND_OPCD,
     MV_MX25L_PP_CMND_OPCD,
     MV_MX25L_SE_CMND_OPCD,
     MV_MX25L_BE_CMND_OPCD,
     MV_MX25L_RES_CMND_OPCD,
     MV_MX25L_DP_CMND_OPCD,
     MV_MX25L_EN4B_CMND_OPCD,
     MV_MX25L25635E_SECTOR_SIZE,
     MV_MX25L25635E_SECTOR_NUMBER,
     MV_MXIC_PAGE_SIZE,
     "MXIC MX25L25635E",
     MV_MXIC_MANF_ID,
     MV_MX25L25635E_DEVICE_ID,
     MV_MX25L25635E_MAX_SPI_FREQ,
     MV_MX25L25635E_MAX_FAST_SPI_FREQ,
     MV_MX25L25635E_FAST_READ_DUMMY_BYTES
    },
    /* SPANSION S25FL128P SPI flash, 16MB, 64 sectors of 256K each */
    {
     MV_S25FL_WREN_CMND_OPCD,
     MV_S25FL_WRDI_CMND_OPCD,
     MV_S25FL_RDID_CMND_OPCD,
     MV_S25FL_RDSR_CMND_OPCD,
     MV_S25FL_WRSR_CMND_OPCD,
     MV_S25FL_READ_CMND_OPCD,
     MV_S25FL_FAST_RD_CMND_OPCD,
     MV_S25FL_PP_CMND_OPCD,
     MV_S25FL_SE_CMND_OPCD,
     MV_S25FL_BE_CMND_OPCD,
     MV_S25FL_RES_CMND_OPCD,
     MV_S25FL_DP_CMND_OPCD,
     MV_SFLASH_NO_SPECIFIC_OPCD,
     MV_S25FL128_SECTOR_SIZE,
     MV_S25FL128_SECTOR_NUMBER,
     MV_S25FL_PAGE_SIZE,
     "SPANSION S25FL128",
     MV_SPANSION_MANF_ID,
     MV_S25FL128_DEVICE_ID,
     MV_S25FL128_MAX_SPI_FREQ,
     MV_M25P128_MAX_FAST_SPI_FREQ,
     MV_M25P128_FAST_READ_DUMMY_BYTES
    }
};

/* Static Functions */
static MV_STATUS    mvWriteEnable(MV_SFLASH_INFO *pFlinfo);
static MV_STATUS    mvStatusRegGet(MV_SFLASH_INFO *pFlinfo, MV_U8 *pStatReg);
static MV_STATUS    mvStatusRegSet(MV_SFLASH_INFO *pFlinfo, MV_U8 sr);
static MV_STATUS    mvWaitOnWipClear(MV_SFLASH_INFO *pFlinfo);
static MV_STATUS    mvSFlashPageWr(MV_SFLASH_INFO *pFlinfo, MV_U32 offset, \
					MV_U8 *pPageBuff, MV_U32 buffSize);
static MV_STATUS    mvSFlashWithDefaultsIdGet(MV_SFLASH_INFO *pFlinfo, \
						MV_U8 *manId, MV_U16 *devId);

/*******************************************************************************
* mvWriteEnable - serialize the write enable sequence
*
* DESCRIPTION:
*       transmit the sequence for write enable
*
********************************************************************************/
static MV_STATUS mvWriteEnable(MV_SFLASH_INFO *pFlinfo)
{
	MV_U8 cmd[MV_SFLASH_WREN_CMND_LENGTH];

	cmd[0] = sflash[pFlinfo->index].opcdWREN;

	/*  mvSpiWriteThenRead(MV_SFLASH_WREN_CMND_LENGTH); */
	return mvSysSflashCommandSet(0, cmd, MV_SFLASH_WREN_CMND_LENGTH,
			SYS_SFLASH_TRANS_ATOMIC);
}

/*******************************************************************************
* mvStatusRegGet - Retrieve the value of the status register
*
* DESCRIPTION:
*       perform the RDSR sequence to get the 8bit status register
*
********************************************************************************/
static MV_STATUS mvStatusRegGet(MV_SFLASH_INFO *pFlinfo, MV_U8 *pStatReg)
{
    MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_RDSR_CMND_LENGTH];
	MV_U8 sr[MV_SFLASH_RDSR_REPLY_LENGTH];

	cmd[0] = sflash[pFlinfo->index].opcdRDSR;

	/*  mvSpiWriteThenRead(MV_SFLASH_RDSR_CMND_LENGTH, sr,MV_SFLASH_RDSR_REPLY_LENGTH) */
	ret = mvSysSflashCommandSet(NULL,  cmd, MV_SFLASH_RDSR_CMND_LENGTH,
			SYS_SFLASH_TRANS_START);
	if (ret == MV_OK) {
		ret = mvSysSflashDataRead(NULL, sr, MV_SFLASH_RDSR_REPLY_LENGTH, 0,
				SYS_SFLASH_TRANS_END);
	}
	if (ret != MV_OK)
		return ret;

    *pStatReg = sr[0];

    return MV_OK;
}

/*******************************************************************************
* mvWaitOnWipClear - Block waiting for the WIP (write in progress) to be cleared
*
* DESCRIPTION:
*       Block waiting for the WIP (write in progress) to be cleared
*
********************************************************************************/
static MV_STATUS mvWaitOnWipClear(MV_SFLASH_INFO *pFlinfo)
{
    MV_STATUS ret;
	MV_U32 i;
    MV_U8 stat;

	for (i = 0; i < MV_SFLASH_MAX_WAIT_LOOP; i++) {
	ret = mvStatusRegGet(pFlinfo, &stat);
	if (ret != MV_OK)
		return ret;

		if ((stat & MV_SFLASH_STATUS_REG_WIP_MASK) == 0)
			return MV_OK;
	}

    DB(mvOsPrintf("%s WARNING: Write Timeout!\n", __func__);)
	return MV_TIMEOUT;
}

/*******************************************************************************
* mvWaitOnChipEraseDone - Block waiting for the WIP (write in progress) to be
*                         cleared after a chip erase command which is supposed
*                         to take about 2:30 minutes
*
* DESCRIPTION:
*       Block waiting for the WIP (write in progress) to be cleared
*
********************************************************************************/
static MV_STATUS mvWaitOnChipEraseDone(MV_SFLASH_INFO *pFlinfo)
{
    MV_STATUS ret;
	MV_U32 i;
    MV_U8 stat;

	for (i = 0; i < MV_SFLASH_CHIP_ERASE_MAX_WAIT_LOOP; i++) {
	ret = mvStatusRegGet(pFlinfo, &stat);
	if (ret != MV_OK)
		return ret;

		if ((stat & MV_SFLASH_STATUS_REG_WIP_MASK) == 0)
			return MV_OK;
	}

    DB(mvOsPrintf("%s WARNING: Write Timeout!\n", __func__);)
	return MV_TIMEOUT;
}

/*******************************************************************************
*  mvStatusRegSet - Set the value of the 8bit status register
*
* DESCRIPTION:
*       Set the value of the 8bit status register
*
********************************************************************************/
static MV_STATUS mvStatusRegSet(MV_SFLASH_INFO *pFlinfo, MV_U8 sr)
{
    MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_WRSR_CMND_LENGTH];

	/* Issue the Write enable command prior the WRSR command */
	ret = mvWriteEnable(pFlinfo);
	if (ret != MV_OK)
		return ret;

	/* Write the SR with the new values */
	cmd[0] = sflash[pFlinfo->index].opcdWRSR;
	cmd[1] = sr;

	/*  mvSpiWriteThenRead(MV_SFLASH_WRSR_CMND_LENGTH) */
	ret = mvSysSflashCommandSet(NULL,  cmd, MV_SFLASH_WRSR_CMND_LENGTH, SYS_SFLASH_TRANS_ATOMIC);
	if (ret != MV_OK)
		return ret;
	ret = mvWaitOnWipClear(pFlinfo);
	if (ret != MV_OK)
		return ret;

	mvOsDelay(1);
	return MV_OK;
}

/*******************************************************************************
* mvSFlashPageWr - Write up to 256 Bytes in the same page
*
* DESCRIPTION:
*       Write a buffer up to the page size in length provided that the whole address
*		range is within the same page (alligned to page bounderies)
*
*******************************************************************************/
static MV_STATUS mvSFlashPageWr(MV_SFLASH_INFO *pFlinfo, MV_U32 offset,
							     MV_U8 *pPageBuff, MV_U32 buffSize)
{
    	MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_MAX_CMND_LENGTH];

	/* Protection - check if the model was detected */
	if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
		DB(mvOsPrintf("%s WARNING: Invalid parameter device index!\n", __func__););
		return MV_BAD_PARAM;
	}

	/* check that we do not cross the page bounderies */
	if (((offset & (sflash[pFlinfo->index].pageSize - 1)) + buffSize) >
			sflash[pFlinfo->index].pageSize) {
		DB(mvOsPrintf("%s WARNING: Page allignment problem!\n", __func__););
		return MV_OUT_OF_RANGE;
	}

	/* Issue the Write enable command prior the page program command */
	ret = mvWriteEnable(pFlinfo);
	if (ret != MV_OK)
		return ret;

    	cmd[0] = sflash[pFlinfo->index].opcdPP;
	if (flSize <= _16M) {
		cmd[1] = ((offset >> 16) & 0xFF);
		cmd[2] = ((offset >> 8) & 0xFF);
		cmd[3] = (offset & 0xFF);
	} else {
		cmd[1] = ((offset >> 24) & 0xFF);
		cmd[2] = ((offset >> 16) & 0xFF);
		cmd[3] = ((offset >> 8) & 0xFF);
		cmd[4] = (offset & 0xFF);
	}

	/*  mvSpiWriteThenWrite(MV_SFLASH_PP_CMND_LENGTH, pPageBuff, buffSize) */
	ret = mvSysSflashCommandSet(NULL, cmd, cmndLength, SYS_SFLASH_TRANS_START);
	if (ret == MV_OK)
		ret = mvSysSflashDataWrite(NULL, pPageBuff, buffSize, SYS_SFLASH_TRANS_END);
	if (ret != MV_OK)
		return ret;
	ret = mvWaitOnWipClear(pFlinfo);
	if (ret != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSFlashWithDefaultsIdGet - Try to read the manufacturer and Device IDs from
*       the device using the default RDID opcode and the default WREN opcode.
*
* DESCRIPTION:
*       This is used to detect a generic device that uses the default opcodes
*       for the WREN and RDID.
*
********************************************************************************/
static MV_STATUS mvSFlashWithDefaultsIdGet(MV_SFLASH_INFO *pFlinfo, MV_U8 *manId, MV_U16 *devId)
{
    MV_STATUS ret;
    MV_U8 cmdRDID[MV_SFLASH_RDID_CMND_LENGTH];
	MV_U8 id[MV_SFLASH_RDID_REPLY_LENGTH] = {0};

	/* Use the default RDID opcode to read the IDs */
	cmdRDID[0] = MV_SFLASH_DEFAULT_RDID_OPCD;   /* unknown model try default */

	/*  mvSpiWriteThenRead(MV_SFLASH_RDID_CMND_LENGTH, id,MV_SFLASH_RDID_REPLY_LENGTH) */
	ret = mvSysSflashCommandSet(NULL,  cmdRDID, MV_SFLASH_RDID_CMND_LENGTH, SYS_SFLASH_TRANS_START);
	if (ret == MV_OK)
		ret = mvSysSflashDataRead(NULL, id, MV_SFLASH_RDID_REPLY_LENGTH, 0, SYS_SFLASH_TRANS_END);

	*manId = id[0];
	*devId = 0;
	*devId |= (id[1] << 8);
	*devId |= id[2];

	return MV_OK;
}

/*
#####################################################################################
#####################################################################################
*/

/*******************************************************************************
* mvSFlashInit - Initialize the serial flash device
*
* DESCRIPTION:
*       Perform the neccessary initialization and configuration
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*           pFlinfo->baseAddr: base address in fast mode.
*           pFlinfo->index: Index of the flash in the sflash tabel. If the SPI
*                           flash device does not support read Id command with
*                           the standard opcode, then the user should supply this
*                           as an input to skip the autodetection process!!!!
*
* OUTPUT:
*       pFlinfo: pointer to the Flash information structure after detection
*           pFlinfo->manufacturerId: Manufacturer ID
*           pFlinfo->deviceId: Device ID
*           pFlinfo->sectorSize: size of the sector (all sectors are the same).
*           pFlinfo->sectorNumber: number of sectors.
*           pFlinfo->pageSize: size of the page.
*           pFlinfo->index: Index of the detected flash in the sflash tabel
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashInit(MV_SFLASH_INFO *pFlinfo)
{
    MV_STATUS ret;
    MV_U8 manf;
    MV_U16 dev;
    MV_U32 indx;
    MV_U8 cmd;
    MV_BOOL detectFlag = MV_FALSE;

    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Initialize the SPI interface with low frequency to make sure that the read ID succeeds */
    /*  mvSpiInit(0, MV_SFLASH_BASIC_SPI_FREQ); */
    ret = mvSysSflashFreqSet(NULL, MV_SFLASH_BASIC_SPI_FREQ);
    if (ret != MV_OK) {
	mvOsPrintf("%s ERROR: Failed to set base SPI frequency!\n", __func__);
	return ret;
    }

    /* First try to read the Manufacturer and Device IDs */
    ret = mvSFlashIdGet(pFlinfo, &manf, &dev);
    if (ret != MV_OK) {
	mvOsPrintf("%s ERROR: Failed to get the SFlash ID!\n", __func__);
	return ret;
    }

    /* loop over the whole table and look for the appropriate SFLASH */
    for (indx = 0; indx < MV_ARRAY_SIZE(sflash); indx++) {
	if ((manf == sflash[indx].manufacturerId) && (dev == sflash[indx].deviceId)) {
		pFlinfo->manufacturerId = manf;
		pFlinfo->deviceId = dev;
		pFlinfo->index = indx;
		detectFlag = MV_TRUE;
	}
    }

    if (!detectFlag) {
	mvOsPrintf("%s ERROR: Unknown SPI flash device!\n", __func__);
	return MV_FAIL;
    }

    /* fill the info based on the model detected */
    pFlinfo->sectorSize = sflash[pFlinfo->index].sectorSize;
    pFlinfo->sectorNumber = sflash[pFlinfo->index].sectorNumber;
    pFlinfo->pageSize = sflash[pFlinfo->index].pageSize;

    /* Enable 4B address mode in case needed and supported */
    flSize = (pFlinfo->sectorSize  * pFlinfo->sectorNumber);
    if (flSize > _16M) {
	cmndLength = 5;
    	if (sflash[pFlinfo->index].opcdEn4B != MV_SFLASH_NO_SPECIFIC_OPCD) {
		mvOsPrintf("%s: Enabling 4-Byte address mode\n", __func__);

	 	cmd = sflash[pFlinfo->index].opcdEn4B;

		/*  mvSpiWriteThenWrite(MV_SFLASH_RES_CMND_LENGTH) */
		ret = mvSysSflashCommandSet(NULL, &cmd, 1, SYS_SFLASH_TRANS_ATOMIC);
		
		if (ret != MV_OK)
			return ret;
	}
    } else
	cmndLength = 4;

    /* Set the SPI frequency to the MAX allowed for the device for best performance */
    /*  mvSpiBaudRateSet(sflash[pFlinfo->index].spiMaxFreq) */
    ret = mvSysSflashFreqSet(NULL, sflash[pFlinfo->index].spiMaxFreq);
    if (ret != MV_OK) {
	 mvOsPrintf("%s ERROR: Failed to set the SPI frequency!\n", __func__);
	return ret;
    }

    /* As default lock the SR */
    ret = mvSFlashStatRegLock(pFlinfo, MV_TRUE);
    if (ret != MV_OK)
	return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSFlashSectorErase - Erasse a single sector of the serial flash
*
* DESCRIPTION:
*       Issue the erase sector command and address
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		secNumber: sector Number to erase (0 -> (sectorNumber-1))
*
* OUTPUT:
*       None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashSectorErase(MV_SFLASH_INFO *pFlinfo, MV_U32 secNumber)
{
    MV_STATUS ret;
    MV_U8 cmd[MV_SFLASH_MAX_CMND_LENGTH];
    MV_U32 secAddr;
#if 0
    MV_U32 i;
    MV_U32 *pW = (MV_U32 *) (secAddr + pFlinfo->baseAddr);
    MV_U32 erasedWord = 0xFFFFFFFF;
    MV_U32 wordsPerSector = (pFlinfo->sectorSize / sizeof(MV_U32));
    MV_BOOL eraseNeeded = MV_FALSE;
#endif
    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }
    secAddr = (secNumber * pFlinfo->sectorSize);

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* check that the sector number is valid */
    if (secNumber >= pFlinfo->sectorNumber) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter sector number!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* we don't want to access SPI in direct mode from in-direct API,
	becasue of timing issue between CS asserts. */
#if 0
    /* First compare to FF and check if erase is needed */
    for (i = 0; i < wordsPerSector; i++)  {
	if (memcmp(pW, &erasedWord, sizeof(MV_U32)) != 0) {
		eraseNeeded = MV_TRUE;
		break;
	}

	++pW;
    }
    if (!eraseNeeded)
	return MV_OK;
#endif

    	cmd[0] = sflash[pFlinfo->index].opcdSE;
	if (flSize <= _16M) {
		cmd[1] = ((secAddr >> 16) & 0xFF);
		cmd[2] = ((secAddr >> 8) & 0xFF);
		cmd[3] = (secAddr & 0xFF);
	} else {
		cmd[1] = ((secAddr >> 24) & 0xFF);
		cmd[2] = ((secAddr >> 16) & 0xFF);
		cmd[3] = ((secAddr >> 8) & 0xFF);
		cmd[4] = (secAddr & 0xFF);
	}

	/* Issue the Write enable command prior the sector erase command */
	ret = mvWriteEnable(pFlinfo);
	if (ret != MV_OK)
		return ret;

	/*  mvSpiWriteThenWrite(MV_SFLASH_SE_CMND_LENGTH) */
	ret = mvSysSflashCommandSet(NULL, cmd, cmndLength, SYS_SFLASH_TRANS_ATOMIC);
	if (ret != MV_OK)
		return ret;
	ret = mvWaitOnWipClear(pFlinfo);
	if (ret != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSFlashChipErase - Erasse the whole serial flash
*
* DESCRIPTION:
*       Issue the bulk (chip) erase command
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*
* OUTPUT:
*       None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashChipErase(MV_SFLASH_INFO *pFlinfo)
{
    MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_BE_CMND_LENGTH];


    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    cmd[0] = sflash[pFlinfo->index].opcdBE;

	/* Issue the Write enable command prior the Bulk erase command */
	ret = mvWriteEnable(pFlinfo);
	if (ret != MV_OK)
		return ret;

	/*  mvSpiWriteThenWrite(MV_SFLASH_BE_CMND_LENGTH) */
	ret = mvSysSflashCommandSet(NULL, cmd, MV_SFLASH_BE_CMND_LENGTH, SYS_SFLASH_TRANS_ATOMIC);
	if (ret != MV_OK)
		return ret;
	ret = mvWaitOnChipEraseDone(pFlinfo);
	if (ret != MV_OK)
		return ret;

	return MV_OK;
}

/*******************************************************************************
* mvSFlashBlockRd - Read from the serial flash
*
* DESCRIPTION:
*       Issue the read command and address then perfom the needed read
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		offset: byte offset with the flash to start reading from
*		pReadBuff: pointer to the buffer to read the data in
*		buffSize: size of the buffer to read.
*
* OUTPUT:
*       pReadBuff: pointer to the buffer containing the read data
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashBlockRd(MV_SFLASH_INFO *pFlinfo, MV_U32 offset,
						   MV_U8 *pReadBuff, MV_U32 buffSize)
{
	MV_U8 cmd[MV_SFLASH_MAX_CMND_LENGTH];
	MV_STATUS status;

    /* check for NULL pointer */
	if ((pFlinfo == NULL) || (pReadBuff == NULL)) {
		mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
		return MV_BAD_PARAM;
	}

	/* Protection - check if the model was detected */
	if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
		DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__));
		return MV_BAD_PARAM;
	}

	cmd[0] = sflash[pFlinfo->index].opcdREAD;
	if (flSize <= _16M) {
		cmd[1] = ((offset >> 16) & 0xFF);
		cmd[2] = ((offset >> 8) & 0xFF);
		cmd[3] = (offset & 0xFF);
	} else {
		cmd[1] = ((offset >> 24) & 0xFF);
		cmd[2] = ((offset >> 16) & 0xFF);
		cmd[3] = ((offset >> 8) & 0xFF);
		cmd[4] = (offset & 0xFF);
	}

	/*  mvSpiWriteThenRead(MV_SFLASH_READ_CMND_LENGTH, pReadBuff, buffSize) */
	status = mvSysSflashCommandSet(NULL, cmd, cmndLength,
			SYS_SFLASH_TRANS_START);
	if (status == MV_OK)
		status = mvSysSflashDataRead(NULL, pReadBuff, buffSize, 0,
				SYS_SFLASH_TRANS_END);
	return status;
}

/*******************************************************************************
* mvSFlashFastBlockRd - Fast read from the serial flash
*
* DESCRIPTION:
*       Issue the fast read command and address then perfom the needed read
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		offset: byte offset with the flash to start reading from
*		pReadBuff: pointer to the buffer to read the data in
*		buffSize: size of the buffer to read.
*
* OUTPUT:
*       pReadBuff: pointer to the buffer containing the read data
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashFastBlockRd(MV_SFLASH_INFO *pFlinfo, MV_U32 offset,
						       MV_U8 *pReadBuff, MV_U32 buffSize)
{
    MV_U8 cmd[MV_SFLASH_MAX_CMND_LENGTH];
    MV_STATUS ret, retCmd;

    /* check for NULL pointer */
    if ((pFlinfo == NULL) || (pReadBuff == NULL)) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    cmd[0] = sflash[pFlinfo->index].opcdFSTRD;
    if (flSize <= _16M) {
	cmd[1] = ((offset >> 16) & 0xFF);
	cmd[2] = ((offset >> 8) & 0xFF);
	cmd[3] = (offset & 0xFF);
    } else {
	cmd[1] = ((offset >> 24) & 0xFF);
	cmd[2] = ((offset >> 16) & 0xFF);
	cmd[3] = ((offset >> 8) & 0xFF);
	cmd[4] = (offset & 0xFF);
    }

    /*  mvSpiWriteThenRead(MV_SFLASH_READ_CMND_LENGTH, pReadBuff, buffSize,
	sflash[pFlinfo->index].spiFastRdDummyBytes); */
    retCmd = mvSysSflashCommandSet(NULL, cmd, cmndLength,
		    SYS_SFLASH_TRANS_START);

    /* Set the SPI frequency to the MAX allowed for fast-read operations */
    mvOsPrintf("Setting freq to %d.\n", sflash[pFlinfo->index].spiMaxFastFreq);

    /*  mvSpiBaudRateSet(sflash[pFlinfo->index].spiMaxFastFreq) */
    ret = mvSysSflashFreqSet(NULL, sflash[pFlinfo->index].spiMaxFastFreq);
    if (ret != MV_OK) {
	mvOsPrintf("%s ERROR: Failed to set the SPI fast frequency!\n", __func__);
	return ret;
    }

    if (retCmd == MV_OK)
	ret = mvSysSflashDataRead(NULL, pReadBuff, buffSize,
			    sflash[pFlinfo->index].spiFastRdDummyBytes, SYS_SFLASH_TRANS_END);

	/* Reset the SPI frequency to the MAX allowed for the device for best performance */
    /*  mvSpiBaudRateSet(sflash[pFlinfo->index].spiMaxFreq) */
    ret = mvSysSflashFreqSet(NULL, sflash[pFlinfo->index].spiMaxFreq);
    if (ret != MV_OK) {
	mvOsPrintf("%s ERROR: Failed to set the SPI frequency!\n", __func__);
	return ret;
    }

    return retCmd;
}


/*******************************************************************************
* mvSFlashBlockWr - Write a buffer with any size
*
* DESCRIPTION:
*       write regardless of the page boundaries and size limit per Page
*		program command
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		offset: byte offset within the flash region
*		pWriteBuff: pointer to the buffer holding the data to program
*		buffSize: size of the buffer to write
*
* OUTPUT:
*       None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashBlockWr(MV_SFLASH_INFO *pFlinfo, MV_U32 offset,
						   MV_U8 *pWriteBuff, MV_U32 buffSize)
{
    MV_STATUS ret;
	MV_U32 data2write	= buffSize;
    MV_U32 preAllOffset = (offset & MV_SFLASH_PAGE_ALLIGN_MASK(MV_M25P_PAGE_SIZE));
    MV_U32 preAllSz		= (preAllOffset ? (MV_M25P_PAGE_SIZE - preAllOffset) : 0);
	MV_U32 writeOffset	= offset;

    /* check for NULL pointer */
#ifndef CONFIG_MARVELL
    if (NULL == pWriteBuff) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }
#endif

    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

	/* check that the buffer size does not exceed the flash size */
    if ((offset + buffSize) > mvSFlashSizeGet(pFlinfo)) {
	DB(mvOsPrintf("%s WARNING: Write exceeds flash size!\n", __func__);)
	return MV_OUT_OF_RANGE;
    }

	/* check if the total block size is less than the first chunk remainder */
	if (data2write < preAllSz)
		preAllSz = data2write;

	/* check if programing does not start at a 64byte alligned offset */
	if (preAllSz) {
		ret = mvSFlashPageWr(pFlinfo, writeOffset, pWriteBuff, preAllSz);
		if (ret != MV_OK)
			return ret;

		/* increment pointers and counters */
		writeOffset += preAllSz;
		data2write -= preAllSz;
		pWriteBuff += preAllSz;
	}

	/* program the data that fits in complete page chunks */
	while (data2write >= sflash[pFlinfo->index].pageSize) {
		ret = mvSFlashPageWr(pFlinfo, writeOffset, pWriteBuff, sflash[pFlinfo->index].pageSize);
		if (ret != MV_OK)
			return ret;

		/* increment pointers and counters */
		writeOffset += sflash[pFlinfo->index].pageSize;
		data2write -= sflash[pFlinfo->index].pageSize;
		pWriteBuff += sflash[pFlinfo->index].pageSize;
	}

	/* program the last partial chunk */
	if (data2write) {
		ret = mvSFlashPageWr(pFlinfo, writeOffset, pWriteBuff, data2write);
		if (ret != MV_OK)
			return ret;
	}

	return MV_OK;
}

/*******************************************************************************
* mvSFlashIdGet - Get the manufacturer and device IDs.
*
* DESCRIPTION:
*       Get the Manufacturer and device IDs from the serial flash through
*		writing the RDID command then reading 3 bytes of data. In case that
*       this command was called for the first time in order to detect the
*       manufacturer and device IDs, then the default RDID opcode will be used
*       unless the device index is indicated by the user (in case the SPI flash
*       does not use the default RDID opcode).
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		pManId: pointer to the 8bit variable to hold the manufacturing ID
*		pDevId: pointer to the 16bit variable to hold the device ID
*
* OUTPUT:
*		pManId: pointer to the 8bit variable holding the manufacturing ID
*		pDevId: pointer to the 16bit variable holding the device ID
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashIdGet(MV_SFLASH_INFO *pFlinfo, MV_U8 *pManId, MV_U16 *pDevId)
{
    MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_RDID_CMND_LENGTH];
	MV_U8 id[MV_SFLASH_RDID_REPLY_LENGTH];


    /* check for NULL pointer */
    if ((pFlinfo == NULL) || (pManId == NULL) || (pDevId == NULL)) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash))
	return mvSFlashWithDefaultsIdGet(pFlinfo, pManId, pDevId);
    else
	cmd[0] = sflash[pFlinfo->index].opcdRDID;

	/*  mvSpiWriteThenRead(MV_SFLASH_RDID_CMND_LENGTH, id, MV_SFLASH_RDID_REPLY_LENGTH) */
	ret = mvSysSflashCommandSet(NULL, cmd, MV_SFLASH_RDID_CMND_LENGTH,
			SYS_SFLASH_TRANS_START);
	if (ret == MV_OK)
		ret = mvSysSflashDataRead(NULL, id, MV_SFLASH_RDID_REPLY_LENGTH, 0, SYS_SFLASH_TRANS_END);
	if (ret != MV_OK)
		return ret;

	*pManId = id[0];
	*pDevId = 0;
	*pDevId |= (id[1] << 8);
	*pDevId |= id[2];

	return MV_OK;
}

/*******************************************************************************
* mvSFlashWpRegionSet - Set the Write-Protected region
*
* DESCRIPTION:
*       Set the Write-Protected region
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		wpRegion: which region will be protected
*
* OUTPUT:
*       None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashWpRegionSet(MV_SFLASH_INFO *pFlinfo, MV_SFLASH_WP_REGION wpRegion)
{
    MV_U8 wpMask;

    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* Check if the chip is an ST flash; then WP supports only 3 bits */
    if (pFlinfo->manufacturerId == MV_M25PXXX_ST_MANF_ID) {
	switch (wpRegion) {
	case MV_WP_NONE:
	    wpMask = MV_M25P_STATUS_BP_NONE;
	    break;

	case MV_WP_UPR_1OF128:
	    DB(mvOsPrintf("%s WARNING: Invaild option for this flash chip!\n", __func__);)
	    return MV_NOT_SUPPORTED;

	case MV_WP_UPR_1OF64:
	    wpMask = MV_M25P_STATUS_BP_1_OF_64;
	    break;

	case MV_WP_UPR_1OF32:
	    wpMask = MV_M25P_STATUS_BP_1_OF_32;
	    break;

	case MV_WP_UPR_1OF16:
	    wpMask = MV_M25P_STATUS_BP_1_OF_16;
	    break;

	case MV_WP_UPR_1OF8:
	    wpMask = MV_M25P_STATUS_BP_1_OF_8;
	    break;

	case MV_WP_UPR_1OF4:
	    wpMask = MV_M25P_STATUS_BP_1_OF_4;
	    break;

	case MV_WP_UPR_1OF2:
	    wpMask = MV_M25P_STATUS_BP_1_OF_2;
	    break;

	case MV_WP_ALL:
	    wpMask = MV_M25P_STATUS_BP_ALL;
	    break;

	default:
	    DB(mvOsPrintf("%s WARNING: Invaild parameter WP region!\n", __func__);)
	    return MV_BAD_PARAM;
	}
    } else if (pFlinfo->manufacturerId == MV_MXIC_MANF_ID) {
	/* check if the manufacturer is MXIC then the WP is 4bits */

	switch (wpRegion) {
	case MV_WP_NONE:
	    wpMask = MV_MX25L_STATUS_BP_NONE;
	    break;

	case MV_WP_UPR_1OF128:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_128;
	    break;

	case MV_WP_UPR_1OF64:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_64;
	    break;

	case MV_WP_UPR_1OF32:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_32;
	    break;

	case MV_WP_UPR_1OF16:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_16;
	    break;

	case MV_WP_UPR_1OF8:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_8;
	    break;

	case MV_WP_UPR_1OF4:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_4;
	    break;

	case MV_WP_UPR_1OF2:
	    wpMask = MV_MX25L_STATUS_BP_1_OF_2;
	    break;

	case MV_WP_ALL:
	    wpMask = MV_MX25L_STATUS_BP_ALL;
	    break;

	default:
	    DB(mvOsPrintf("%s WARNING: Invaild parameter WP region!\n", __func__);)
	    return MV_BAD_PARAM;
	}
    } else if (pFlinfo->manufacturerId == MV_SPANSION_MANF_ID) {
	/* check if the manufacturer is SPANSION then the WP is 4bits */
	switch (wpRegion) {
	case MV_WP_NONE:
	    wpMask = MV_S25FL_STATUS_BP_NONE;
	    break;

	case MV_WP_UPR_1OF128:
	    DB(mvOsPrintf("%s WARNING: Invaild option for this flash chip!\n", __func__);)
	    return MV_NOT_SUPPORTED;

	case MV_WP_UPR_1OF64:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_64;
	    break;

	case MV_WP_UPR_1OF32:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_32;
	    break;

	case MV_WP_UPR_1OF16:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_16;
	    break;

	case MV_WP_UPR_1OF8:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_8;
	    break;

	case MV_WP_UPR_1OF4:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_4;
	    break;

	case MV_WP_UPR_1OF2:
	    wpMask = MV_S25FL_STATUS_BP_1_OF_2;
	    break;

	case MV_WP_ALL:
	    wpMask = MV_S25FL_STATUS_BP_ALL;
	    break;


	default:
	    DB(mvOsPrintf("%s WARNING: Invaild parameter WP region!\n", __func__);)
	    return MV_BAD_PARAM;
	}
    } else {
	DB(mvOsPrintf("%s WARNING: Invaild parameter Manufacturer ID!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* Verify that the SRWD bit is always set - register is s/w locked */
    wpMask |= MV_SFLASH_STATUS_REG_SRWD_MASK;

	return mvStatusRegSet(pFlinfo, wpMask);
}

/*******************************************************************************
* mvSFlashWpRegionGet - Get the Write-Protected region configured
*
* DESCRIPTION:
*       Get from the chip the Write-Protected region configured
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		pWpRegion: pointer to the variable to return the WP region in
*
* OUTPUT:
*		wpRegion: pointer to the variable holding the WP region configured
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashWpRegionGet(MV_SFLASH_INFO *pFlinfo, MV_SFLASH_WP_REGION *pWpRegion)
{
	MV_STATUS ret;
	MV_U8 reg;

    /* check for NULL pointer */
    if ((pFlinfo == NULL) || (pWpRegion == NULL)) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }
    ret = mvStatusRegGet(pFlinfo, &reg);
    if (ret != MV_OK)
	return ret;

    /* Check if the chip is an ST flash; then WP supports only 3 bits */
    if (pFlinfo->manufacturerId == MV_M25PXXX_ST_MANF_ID) {
	switch ((reg & MV_M25P_STATUS_REG_WP_MASK)) {
	case MV_M25P_STATUS_BP_NONE:
	    *pWpRegion = MV_WP_NONE;
	    break;

	case MV_M25P_STATUS_BP_1_OF_64:
	    *pWpRegion = MV_WP_UPR_1OF64;
	    break;

	case MV_M25P_STATUS_BP_1_OF_32:
	    *pWpRegion = MV_WP_UPR_1OF32;
	    break;

	case MV_M25P_STATUS_BP_1_OF_16:
	    *pWpRegion = MV_WP_UPR_1OF16;
	    break;

	case MV_M25P_STATUS_BP_1_OF_8:
	    *pWpRegion = MV_WP_UPR_1OF8;
	    break;

	case MV_M25P_STATUS_BP_1_OF_4:
	    *pWpRegion = MV_WP_UPR_1OF4;
	    break;

	case MV_M25P_STATUS_BP_1_OF_2:
	    *pWpRegion = MV_WP_UPR_1OF2;
	    break;

	case MV_M25P_STATUS_BP_ALL:
	    *pWpRegion = MV_WP_ALL;
	    break;

	default:
	    DB(mvOsPrintf("%s WARNING: Unidentified WP region in h/w!\n", __func__);)
	    return MV_BAD_VALUE;
	}
    } else if (pFlinfo->manufacturerId == MV_MXIC_MANF_ID) {
	/* check if the manufacturer is MXIC then the WP is 4bits */
	switch ((reg & MV_MX25L_STATUS_REG_WP_MASK))  {
	case MV_MX25L_STATUS_BP_NONE:
	    *pWpRegion = MV_WP_NONE;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_128:
	    *pWpRegion = MV_WP_UPR_1OF128;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_64:
	    *pWpRegion = MV_WP_UPR_1OF64;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_32:
	    *pWpRegion = MV_WP_UPR_1OF32;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_16:
	    *pWpRegion = MV_WP_UPR_1OF16;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_8:
	    *pWpRegion = MV_WP_UPR_1OF8;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_4:
	    *pWpRegion = MV_WP_UPR_1OF4;
	    break;

	case MV_MX25L_STATUS_BP_1_OF_2:
	    *pWpRegion = MV_WP_UPR_1OF2;
	    break;

	case MV_MX25L_STATUS_BP_ALL:
	    *pWpRegion = MV_WP_ALL;
	    break;

	default:
	    DB(mvOsPrintf("%s WARNING: Unidentified WP region in h/w!\n", __func__);)
	    return MV_BAD_VALUE;
	}
    } else if (pFlinfo->manufacturerId == MV_SPANSION_MANF_ID) {
	/* Check if the chip is an SPANSION flash; then WP supports only 3 bits */
	switch ((reg & MV_S25FL_STATUS_REG_WP_MASK)) {
	case MV_S25FL_STATUS_BP_NONE:
	    *pWpRegion = MV_WP_NONE;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_64:
	    *pWpRegion = MV_WP_UPR_1OF64;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_32:
	    *pWpRegion = MV_WP_UPR_1OF32;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_16:
	    *pWpRegion = MV_WP_UPR_1OF16;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_8:
	    *pWpRegion = MV_WP_UPR_1OF8;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_4:
	    *pWpRegion = MV_WP_UPR_1OF4;
	    break;

	case MV_S25FL_STATUS_BP_1_OF_2:
	    *pWpRegion = MV_WP_UPR_1OF2;
	    break;

	case MV_S25FL_STATUS_BP_ALL:
	    *pWpRegion = MV_WP_ALL;
	    break;

	default:
	    DB(mvOsPrintf("%s WARNING: Unidentified WP region in h/w!\n", __func__);)
	    return MV_BAD_VALUE;
	}
    } else {
	DB(mvOsPrintf("%s WARNING: Invaild parameter Manufacturer ID!\n", __func__);)
	return MV_BAD_PARAM;
    }

	return MV_OK;
}

/*******************************************************************************
* mvSFlashStatRegLock - Lock the status register for writing - W/Vpp
*		pin should be low to take effect
*
* DESCRIPTION:
*       Lock the access to the Status Register for writing. This will
*		cause the flash to enter the hardware protection mode if the W/Vpp
*		is low. If the W/Vpp is hi, the chip will be in soft protection mode, but
*		the register will continue to be writable if WREN sequence was used.
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*		srLock: enable/disable (MV_TRUE/MV_FALSE) status registor lock mechanism
*
* OUTPUT:
*       None
*
* RETURN:
*       Success or Error code.
*
*
*******************************************************************************/
MV_STATUS mvSFlashStatRegLock(MV_SFLASH_INFO *pFlinfo, MV_BOOL srLock)
{
    MV_STATUS ret;
	MV_U8 reg;

    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return MV_BAD_PARAM;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }
    ret = mvStatusRegGet(pFlinfo, &reg);
    if (ret != MV_OK)
	return ret;

	if (srLock)
		reg |= MV_SFLASH_STATUS_REG_SRWD_MASK;
	else
		reg &= ~MV_SFLASH_STATUS_REG_SRWD_MASK;

	return mvStatusRegSet(pFlinfo, reg);
}

/*******************************************************************************
* mvSFlashSizeGet - Get the size of the SPI flash
*
* DESCRIPTION:
*       based on the sector number and size of each sector calculate the total
*       size of the flash memory.
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Size of the flash in bytes.
*
*
*******************************************************************************/
MV_U32 mvSFlashSizeGet(MV_SFLASH_INFO *pFlinfo)
{
    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return 0;
    }

    return (pFlinfo->sectorSize * pFlinfo->sectorNumber);
}

/*******************************************************************************
* mvSFlashPowerSaveEnter - Cause the falsh device to go into power save mode
*
* DESCRIPTION:
*       Enter a special power save mode.
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Size of the flash in bytes.
*
*
*******************************************************************************/
MV_STATUS mvSFlashPowerSaveEnter(MV_SFLASH_INFO *pFlinfo)
{
    MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_DP_CMND_LENGTH];


    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return 0;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* check that power save mode is supported in the specific device */
    if (sflash[pFlinfo->index].opcdPwrSave == MV_SFLASH_NO_SPECIFIC_OPCD) {
	DB(mvOsPrintf("%s WARNING: Power save not supported for this device!\n", __func__);)
	return MV_NOT_SUPPORTED;
    }

    cmd[0] = sflash[pFlinfo->index].opcdPwrSave;

	/*  mvSpiWriteThenWrite(MV_SFLASH_DP_CMND_LENGTH) */
	ret = mvSysSflashCommandSet(NULL, cmd, MV_SFLASH_DP_CMND_LENGTH, SYS_SFLASH_TRANS_ATOMIC);
	return ret;
}

/*******************************************************************************
* mvSFlashPowerSaveExit - Cause the falsh device to exit the power save mode
*
* DESCRIPTION:
*       Exit the deep power save mode.
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       Size of the flash in bytes.
*
*
*******************************************************************************/
MV_STATUS mvSFlashPowerSaveExit(MV_SFLASH_INFO *pFlinfo)
{
	MV_STATUS ret;
	MV_U8 cmd[MV_SFLASH_RES_CMND_LENGTH];


    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return 0;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return MV_BAD_PARAM;
    }

    /* check that power save mode is supported in the specific device */
    if (sflash[pFlinfo->index].opcdRES == MV_SFLASH_NO_SPECIFIC_OPCD) {
	DB(mvOsPrintf("%s WARNING: Read Electronic Signature not supported for this device!\n", __func__);)
	return MV_NOT_SUPPORTED;
    }

    cmd[0] = sflash[pFlinfo->index].opcdRES;


	/*  mvSpiWriteThenWrite(MV_SFLASH_RES_CMND_LENGTH) */
	ret = mvSysSflashCommandSet(NULL, cmd, MV_SFLASH_RES_CMND_LENGTH, SYS_SFLASH_TRANS_ATOMIC);
	if (ret != MV_OK)
		return ret;

    /* add the delay needed for the device to wake up */
    mvOsDelay(MV_MXIC_DP_EXIT_DELAY);   /* 30 ms */

    return MV_OK;
}

/*******************************************************************************
* mvSFlashModelGet - Retreive the string with the device manufacturer and model
*
* DESCRIPTION:
*       Retreive the string with the device manufacturer and model
*
* INPUT:
*       pFlinfo: pointer to the Flash information structure
*
* OUTPUT:
*       None.
*
* RETURN:
*       pointer to the string indicating the device manufacturer and model
*
*
*******************************************************************************/
const MV_8 *mvSFlashModelGet(MV_SFLASH_INFO *pFlinfo)
{
    static const MV_8 * unknModel = (const MV_8 *)"Unknown";

    /* check for NULL pointer */
    if (pFlinfo == NULL) {
	 mvOsPrintf("%s ERROR: Null pointer parameter!\n", __func__);
	return 0;
    }

    /* Protection - check if the model was detected */
    if (pFlinfo->index >= MV_ARRAY_SIZE(sflash)) {
	DB(mvOsPrintf("%s WARNING: Invaild parameter index!\n", __func__);)
	return unknModel;
    }

    return sflash[pFlinfo->index].deviceModel;
}