update to Platform Library 00.06: header file updates
[keystone-rtos/mcsdk-tools.git] / writer / nand / src / nandwriter.c
index 742be938994c1956a087abc4f96a488a909e4533..458796be306167549b6ef0ef762d399d86d35d6a 100755 (executable)
-/******************************************************************************
- * Copyright (c) 2013-2014 Texas Instruments Incorporated - http://www.ti.com
- * 
- *  Redistribution and use in source and binary forms, with or without 
- *  modification, are permitted provided that the following conditions 
- *  are met:
- *
- *    Redistributions of source code must retain the above copyright 
- *    notice, this list of conditions and the following disclaimer.
- *
- *    Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the 
- *    documentation and/or other materials provided with the   
- *    distribution.
- *
- *    Neither the name of Texas Instruments Incorporated nor the names of
- *    its contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
- *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
- *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
- *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
- *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
- *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
- *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
- *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
- *****************************************************************************/
-
-/**************************************************************************************
- * FILE PURPOSE: NAND writer utility
- **************************************************************************************
- * FILE NAME: nandwriter.c
- *
- * DESCRIPTION: A simple nand writer using platform lib APIs to program the NAND flash
- *              with an image that the ibl can read.
- *
- ***************************************************************************************/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include "platform.h"
-#include "types.h"
-
-/* NAND writer utility version */
-char version[] = "01.00.00.05";
-
-/* The input file name is hard coded */
-char *input_file = "nand_writer_input.txt";
-
-uint32_t swap_byte = 0;
-volatile uint32_t nand_erase_flag = 0;
-
-/* Parameters defined in the input_file */
-#define FILE_NAME      "file_name"
-#define START_ADDR     "start_addr"
-#define RBL_ECC        "rbl_ecc"
-#define SKIP_BAD       "skip_bad"
-
-/* Memory address to store the write data */
-#define WRITE_DATA_ADDRESS     0x80000000
-
-/* NAND device specific definitions */
-#define BAD_BLOCK_MARKER_VALUE  0xA5
-
-/******************************************************************************
- * Structure:   NAND_WRITER_INFO_T
- *
- *              NAND writer control data. This structure should be filled in
- *              by the user before running
- ******************************************************************************/
-#define MAX_LINE_LENGTH 40
-typedef struct NAND_WRITER_INFO_tag
-{
-    char        file_name[MAX_LINE_LENGTH]; /* CCS format data file name */
-    uint32_t    blockSizeBytes;             /* The size of each sector */
-    uint32_t    deviceTotalBytes;           /* Total number of bytes available in the device */
-    uint32_t    startAddr;                  /* Start address to write */
-    uint32_t    writeBytes;                 /* Number of bytes to be written into the device */
-    uint8_t     flags;                      /* Flag used for EVMK2H for multiple ECC formats */
-    uint8_t     skip_bad_blks;              /* Flag used to skip bad blocks */
-    uint8_t     *writeData;                 /* Address to store the write data */
-    uint8_t     *readData;                  /* Address to store the read data */
-
-} NAND_WRITER_INFO_T;
-
-NAND_WRITER_INFO_T nandWriterInfo;
-
-/* OSAL functions for Platform Library */
-uint8_t *Osal_platformMalloc (uint32_t num_bytes, uint32_t alignment)
-{
-       return malloc(num_bytes);
-}
-
-void Osal_platformFree (uint8_t *dataPtr, uint32_t num_bytes)
-{
-    /* Free up the memory */
-    if (dataPtr)
-    {
-        free(dataPtr);
-    }
-}
-
-void Osal_platformSpiCsEnter(void)
-{
-    return;
-}
-
-void Osal_platformSpiCsExit (void)
-{
-    return;
-}
-
-/******************************************************************************
- * Function:    print_platform_errno
- ******************************************************************************/
-void
-print_platform_errno
-(
-    void
-)
-{
-    printf ("Returned platform error number is %d\n", platform_errno);
-}
-
-/******************************************************************************
- * Function:    checkBadBlockMark
- *
- *              Checks for the bad block mark. Returns TRUE if a block is marked bad.
- ******************************************************************************/
-Bool
-checkBadBlockMark 
-(
-    PLATFORM_DEVICE_info    *p_device,
-    uint32_t                  block
-)
-{
-    if (p_device->bblist[block] != 0xff)
-    {
-        return TRUE;
-    }
-    else
-    {
-        return FALSE;
-    }
-}
-
-/******************************************************************************
- * Function:    markBlockBad
- *
- *              Mark a block as bad. Byte 5 of the spare area data is
- *              written as 0xA5.
- ******************************************************************************/
-void 
-markBlockBad 
-(
-    PLATFORM_DEVICE_info        *p_device,
-    uint32_t                    block
-)
-{
-    uint8_t       *spare_data;
-
-    spare_data = malloc(p_device->spare_size);
-    if (spare_data == NULL)
-    {
-        printf ("Can not allocate spare_data memory!\n");
-        return;
-    }
-
-    platform_device_read_spare_data(p_device->handle, block, 0, spare_data);
-
-    /* Set all data bytes to 0xff, only set the user defined bad block mark value */
-    spare_data[p_device->bboffset] = BAD_BLOCK_MARKER_VALUE;
-
-    /* Write the data to page */
-    platform_device_write_spare_data(p_device->handle, block, 0, spare_data);
-
-    /* Save the user defined bad block mark in bblist */
-    p_device->bblist[block] = BAD_BLOCK_MARKER_VALUE;
-
-    free (spare_data);
-}
-
-/******************************************************************************
- * Function:    formBlock
- *
- *      Form a block of data to write to the NAND. The block is
- *      created as a byte stream from the 4 byte stream in which
- *      the MSB is always sent first.
- ******************************************************************************/
-void
-formBlock
-(
-    uint32_t      *data,
-    uint32_t      blockSize,
-    uint8_t       *scratch
-)
-{
-    uint32_t i, j;
-
-    /* Convert the data to a byte stream */
-    for (i = j = 0; j < blockSize; i++, j+=4)
-    {
-        scratch[j+0] = (data[i] >> 24) & 0xff;
-        scratch[j+1] = (data[i] >> 16) & 0xff;
-        scratch[j+2] = (data[i] >>  8) & 0xff;
-        scratch[j+3] = (data[i] >>  0) & 0xff;
-    }
-}
-
-/******************************************************************************
- * Function:    flash_nand
- *
- *              Write the image to flash.
- *              Returns TRUE if the image is written successfully
- *                      FALSE if the image write fails
- ******************************************************************************/
-Bool 
-flash_nand
-(
-    PLATFORM_DEVICE_info    *p_device
-)
-{
-    uint32_t      wPos, wLen;
-    uint32_t      block, start_block;
-    uint8_t       *scrach_block;
-    uint32_t      num_blks;
-    uint32_t      bad_block_found;
-
-    if (swap_byte)
-    {
-        scrach_block = malloc(nandWriterInfo.blockSizeBytes);
-        if (scrach_block == NULL)
-        {
-            printf ("Can not allocate scratch block memory!\n");
-            return (FALSE);
-        }
-    }
-
-    start_block = nandWriterInfo.startAddr / nandWriterInfo.blockSizeBytes;
-
-    /* skip the bad blocks if the flag is set */
-    if (nandWriterInfo.skip_bad_blks)
-    {
-       num_blks = nandWriterInfo.writeBytes / nandWriterInfo.blockSizeBytes;
-       if ((nandWriterInfo.writeBytes - nandWriterInfo.blockSizeBytes * num_blks) > 0)
-               num_blks++;
-
-       while (TRUE)
-       {
-               bad_block_found = FALSE;
-               for (block = start_block; block < start_block + num_blks; block++)
-               {
-                       if (checkBadBlockMark(p_device, block))
-                       {
-                               start_block = block + 1;
-                               bad_block_found = TRUE;
-                               break;
-                       }
-               }
-               if (bad_block_found == FALSE)
-                       break;
-       }
-    }
-
-    /* Program the NAND */
-    for (block = start_block, wPos = 0; wPos < nandWriterInfo.writeBytes; block++, wPos += nandWriterInfo.blockSizeBytes)
-    {
-        while(checkBadBlockMark(p_device, block))
-        {
-            printf ("Bad block # %d detected, skipping block ... \n", block);
-            if (++block == p_device->block_count)
-            {
-                printf ("Flash failed: End of device reached\n");
-                if (swap_byte) free (scrach_block);
-                return (FALSE);        
-            }
-        }
-
-        printf ("Flashing block %d (%d bytes of %d)\n", block, wPos, nandWriterInfo.writeBytes);
-
-       platform_device_erase_block(p_device->handle, block);
-
-        wLen = nandWriterInfo.blockSizeBytes;
-        if (nandWriterInfo.writeBytes - wPos < nandWriterInfo.blockSizeBytes)
-        {
-            wLen = nandWriterInfo.writeBytes - wPos;
-        }
-
-        if (swap_byte)
-        {
-            formBlock((uint32_t *)(&nandWriterInfo.writeData[wPos]), nandWriterInfo.blockSizeBytes, scrach_block);
-        }
-        else
-        {
-            scrach_block = &nandWriterInfo.writeData[wPos];
-        }
-        if (platform_device_write(p_device->handle, 
-                                  block*nandWriterInfo.blockSizeBytes, 
-                                  scrach_block, 
-                                  wLen) != Platform_EOK)
-        {
-            printf ("platform_device_write block # %d failed!\n", block);
-            print_platform_errno();
-            if (swap_byte) free (scrach_block);
-            return (FALSE);
-        }
-
-    }
-
-    if (swap_byte) free (scrach_block);
-    return (TRUE);
-}    
-
-/******************************************************************************
- * Function:    flash_verify
- *
- *              Read back the data file that was just flashed. On errors mark the block as bad.
- *              Returns TRUE if the image verified correctly.
- *                      FALSE if the image verification failed
- ******************************************************************************/
-Bool 
-flash_verify
-(
-    PLATFORM_DEVICE_info    *p_device
-)
-{
-    uint32_t      rPos, rLen;
-    uint32_t      i, j;
-    uint32_t      block, start_block;
-    uint8_t       *scrach_block;
-    uint32_t      *read_data_w;
-
-    if (swap_byte) 
-    {
-        scrach_block = malloc(nandWriterInfo.blockSizeBytes);
-        if (scrach_block == NULL)
-        {
-            printf ("Can not allocate scratch block memory!\n");
-            return (FALSE);
-        }
-    }
-
-    start_block = nandWriterInfo.startAddr / nandWriterInfo.blockSizeBytes;
-
-    for (block = start_block, rPos = 0; rPos < nandWriterInfo.writeBytes; block++, rPos += nandWriterInfo.blockSizeBytes)
-    {
-        while(checkBadBlockMark(p_device, block))
-        {
-            printf ("Bad block # %d detected, skipping block ... \n", block);
-            if (++block == p_device->block_count)
-            {
-                printf ("Flash failed: End of device reached\n");
-                if (swap_byte) free (scrach_block);
-                return (FALSE);        
-            }
-        }
-
-
-        printf ("Reading and verifying block %d (%d bytes of %d)\n", block, rPos, nandWriterInfo.writeBytes);
-
-        if (!swap_byte)
-        {
-            scrach_block = &nandWriterInfo.readData[rPos];
-
-        }
-
-        /* Read a block of data */
-        if(platform_device_read(p_device->handle, 
-                                block*nandWriterInfo.blockSizeBytes, 
-                                scrach_block,
-                                nandWriterInfo.blockSizeBytes) != Platform_EOK)
-        {
-            printf ("Failure in reading block %d\n", block);
-            print_platform_errno();
-            if (platform_errno == PLATFORM_ERRNO_ECC_FAIL)
-            {
-                printf ("marking block %d as bad, re-flash attempted\n", block);
-                markBlockBad (p_device, block);
-            }
-            if (swap_byte) free (scrach_block);
-            return (FALSE);
-        }
-
-        /* Convert the packed data */
-        if (swap_byte)
-        {
-            read_data_w = (uint32_t *)(&nandWriterInfo.readData[rPos]);
-            for  (i = 0, j = 0; i < nandWriterInfo.blockSizeBytes; i += 4)
-                read_data_w[j++] = (scrach_block[i+0] << 24) | (scrach_block[i+1] << 16) | (scrach_block[i+2] << 8) | scrach_block[i+3];
-        }
-
-        rLen = nandWriterInfo.blockSizeBytes;
-        if (nandWriterInfo.writeBytes - rPos < nandWriterInfo.blockSizeBytes)
-        {
-            rLen = nandWriterInfo.writeBytes - rPos;
-        }
-
-        /* Compare the data read with data programmed */
-        for (i = rPos; i < rLen; i++)
-        {
-            if (nandWriterInfo.readData[i] != nandWriterInfo.writeData[i])
-            {
-                printf ("Failure in block %d, at byte %d, (at byte %d in the data file) expected 0x%08x, read 0x%08x\n", 
-                        block, i, rPos, nandWriterInfo.writeData[i], nandWriterInfo.readData[i]);
-                if (swap_byte) free (scrach_block);
-                return (FALSE);
-            }
-        }
-
-    }
-
-    if (swap_byte) free (scrach_block);
-    return (TRUE);
-}
-
-/******************************************************************************
- * Function:    parse_input_file  
- ******************************************************************************/
-static Bool
-parse_input_file
-(
-    FILE*               fp
-)
-{
-    char line[MAX_LINE_LENGTH];
-    char tokens[] = " :=;\n\r";
-    char *key, *data;
-
-    memset(line, 0, MAX_LINE_LENGTH);
-
-    fgets(line, MAX_LINE_LENGTH, fp);
-    key  = (char *)strtok(line, tokens);
-    data = (char *)strtok(NULL, tokens);
-
-    if(strlen(data) == 0)
-    {
-       return FALSE;
-    }
-
-    if(strcmp(key, FILE_NAME) != 0)
-    {
-        return FALSE;
-    }
-
-    strcpy (nandWriterInfo.file_name, data);
-
-    fgets(line, MAX_LINE_LENGTH, fp);
-    key  = (char *)strtok(line, tokens);
-    data = (char *)strtok(NULL, tokens);
-
-    if(strlen(data) == 0)
-    {
-       return FALSE;
-    }
-
-    if(strcmp(key, START_ADDR) != 0)
-    {
-        return FALSE;
-    }
-
-    nandWriterInfo.startAddr = (uint32_t)atoi(data);
-    
-    fgets(line, MAX_LINE_LENGTH, fp);
-    key = (char *)strtok(line, tokens);
-    data = (char *)strtok(NULL, tokens);
-    
-    if(strlen(data) != 0 && (strcmp(key, RBL_ECC) == 0))
-    {
-        nandWriterInfo.flags = (uint8_t)atoi(data);
-    }
-    else
-    {
-        nandWriterInfo.flags = 0;
-    }
-
-    /* Scan skip bad block input parameter */
-    fgets(line, MAX_LINE_LENGTH, fp);
-    key = (char *)strtok(line, tokens);
-    data = (char *)strtok(NULL, tokens);
-
-    if(strlen(data) != 0 && (strcmp(key, SKIP_BAD) == 0))
-    {
-        nandWriterInfo.skip_bad_blks = (uint8_t)atoi(data);
-    }
-    else
-    {
-        nandWriterInfo.skip_bad_blks = 0;
-    }
-
-    return TRUE;
-}
-
-/******************************************************************************
- * Function:    find_file_length
- ******************************************************************************/
-static Bool
-find_file_length
-(
-    FILE*               fp
-)
-{
-    char        line[MAX_LINE_LENGTH];
-    char        *pEnd;
-    char        *ext;
-    uint32_t    data_len, write_addr;
-
-    memset(line, 0, MAX_LINE_LENGTH);
-
-    ext = strrchr(nandWriterInfo.file_name, '.');
-    if (ext && (strcmp(ext, ".dat") == 0))
-    {
-    fgets(line, MAX_LINE_LENGTH, fp);
-
-    /* Read the write address from the CCS header */
-    strtoul (line,&pEnd,16);
-    strtoul (pEnd,&pEnd,16);
-    write_addr = strtoul (pEnd,&pEnd,16);
-    strtoul (pEnd,&pEnd,16);
-
-    /* Read the data length */
-    data_len = (strtoul (pEnd,NULL,16)) * 4;
-    }
-    else
-    {
-        /* find the data length by seeking to the end and getting position */
-        fseek(fp, 0, SEEK_END);
-        data_len = ftell(fp);
-        fseek(fp, 0, SEEK_SET);
-    }
-
-    if (data_len > (nandWriterInfo.deviceTotalBytes - nandWriterInfo.startAddr))
-    {
-        printf ("The data file is too big to fit into the device.\n");
-        return FALSE;
-    }
-
-    nandWriterInfo.writeBytes = data_len;
-    if (write_addr != WRITE_DATA_ADDRESS)
-        write_addr = WRITE_DATA_ADDRESS;
-    nandWriterInfo.writeData  = (uint8_t *)write_addr;
-    nandWriterInfo.readData   = (uint8_t *)(write_addr + nandWriterInfo.deviceTotalBytes);
-
-    return TRUE;
-}
-
-static Bool 
-nand_erase_all_blks(PLATFORM_DEVICE_info *p_device)
-{
-  uint32_t block;
-  uint32_t max_blks;
-
-  max_blks = p_device->block_count;
-  
-  for (block=0; block<max_blks;block++)
-  {
-      printf (".");
-      if (platform_device_erase_block(p_device->handle, block) != Platform_EOK)
-        return FALSE;
-  }
-
-  printf ("\nFormatted %d nand blocks \n", block);
-  return (TRUE);
-}
-
-/******************************************************************************
- * Function:    main  
- ******************************************************************************/
-void main ()
-{
-    FILE                    *fp;
-    platform_init_flags     init_flags;
-    platform_init_config    init_config;
-    PLATFORM_DEVICE_info    *p_device;
-    Bool                    ret;
-    uint32_t                rCount;
-    printf("NAND Writer Utility Version %s\n\n", version);
-
-    fp = fopen(input_file, "r");
-    if (fp == NULL)
-    {
-        printf("Error in opening %s input file\n", input_file);
-        return;
-    }
-
-    ret = parse_input_file(fp);
-    fclose (fp);
-
-    if (ret == FALSE)
-    {
-        printf("Error in parsing %s input file\n", input_file);
-        return;
-    }
-
-    /* Initialize main Platform lib */
-    memset(&init_config, 0, sizeof(platform_init_config));
-    memset(&init_flags, 1, sizeof(platform_init_flags));
-    init_flags.pll = 0;
-    init_flags.ddr = 0;
-    init_flags.phy =0;
-    if (platform_init(&init_flags, &init_config) != Platform_EOK)
-    {
-        printf ("Platform init failed!\n");
-        print_platform_errno();
-        return;
-    }
-#if (defined(_EVMC6657L_) || defined(DEVICE_K2H))
-     p_device = platform_device_open(PLATFORM_DEVID_MT29F1G08ABCHC, nandWriterInfo.flags);
-#elif defined(DEVICE_K2E)
-     p_device = platform_device_open(PLATFORM_DEVID_MT29F4G08ABADA, nandWriterInfo.flags);
-#elif defined(DEVICE_K2L)
-     p_device = platform_device_open(PLATFORM_DEVID_MT29F16G08ADBCAH4C, nandWriterInfo.flags);
-#elif defined(DEVICE_K2G)
-     p_device = platform_device_open(PLATFORM_DEVID_MT29F2G16ABAFA, nandWriterInfo.flags);
-#else
-    p_device = platform_device_open(PLATFORM_DEVID_NAND512R3A2D, 0);
-#endif
-    if (p_device == NULL) 
-    {
-        printf ("NAND device open failed!\n");
-        print_platform_errno();
-        return;
-    }
-    nandWriterInfo.deviceTotalBytes = p_device->block_count * p_device->page_count * p_device->page_size;
-    nandWriterInfo.blockSizeBytes   = p_device->page_count * p_device->page_size;
-
-    if ((nandWriterInfo.startAddr % nandWriterInfo.blockSizeBytes) != 0)
-    {
-        printf ("The start programming address 0x%8x set in %s is not at the beginning of a block, block size = 0x%4x\n", 
-                nandWriterInfo.startAddr, 
-                nandWriterInfo.file_name,
-                nandWriterInfo.blockSizeBytes);
-        return;
-    }
-
-    /* Check if we need to erase the nand completely */
-     if (nand_erase_flag == 0x12345678)
-     {
-        if (nand_erase_all_blks(p_device) == FALSE)
-        {
-           printf ("Formatting all nand blocks - failed \n");
-        }
-        else
-        {
-           printf ("Formatting all nand blocks - Successful\n");
-        }
-        platform_device_close(p_device->handle);
-        /* Operation Complete */
-        return;
-     }
-
-    /* Open and find the length of the data file */
-    fp = fopen (nandWriterInfo.file_name, "rb");
-    if (fp == NULL)
-    {
-      printf ("Failed to open file %s\n", nandWriterInfo.file_name);
-      platform_device_close(p_device->handle);
-      return;
-    }
-
-    /* Parse the CCS format file */
-    ret = find_file_length(fp);
-    fclose (fp);
-    if (ret == FALSE)
-    {
-        printf("Error in parsing CCS file %s\n", nandWriterInfo.file_name);
-        platform_device_close(p_device->handle);
-        return;
-    }
-    
-    /* Write the flash, verify the results. On read back failure mark
-     * the block as bad and try rewriting again */
-    rCount = 0;
-
-    do  
-    {
-        if (flash_nand (p_device) == FALSE)
-        {
-            printf ("NAND write giving up\n");
-            return;
-        }
-
-        rCount += 1;
-
-    }  while ((flash_verify (p_device) == FALSE) && (rCount < 5));
-
-    
-    if (rCount >= 5) 
-    {
-        printf ("NAND write failed (maximum retries reached)\n");
-    }
-    else
-    {
-        printf ("NAND programming completed successfully\n");
-    }
-
-    platform_device_close(p_device->handle);
-    
-    return;
-}
-
-
-
-
+/*\r
+ * Copyright (c) 2011-2015, Texas Instruments Incorporated\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ *\r
+ * *  Redistributions of source code must retain the above copyright\r
+ *    notice, this list of conditions and the following disclaimer.\r
+ *\r
+ * *  Redistributions in binary form must reproduce the above copyright\r
+ *    notice, this list of conditions and the following disclaimer in the\r
+ *    documentation and/or other materials provided with the distribution.\r
+ *\r
+ * *  Neither the name of Texas Instruments Incorporated nor the names of\r
+ *    its contributors may be used to endorse or promote products derived\r
+ *    from this software without specific prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"\r
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,\r
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR\r
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,\r
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,\r
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;\r
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\r
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR\r
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,\r
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ *\r
+ */\r
+\r
+/**************************************************************************************\r
+ * FILE PURPOSE: NAND writer utility\r
+ **************************************************************************************\r
+ * FILE NAME: nandwriter.c\r
+ *\r
+ * DESCRIPTION: A simple nand writer using platform lib APIs to program the NAND flash\r
+ *              with an image that the ibl can read.\r
+ *\r
+ ***************************************************************************************/\r
+#include <stdlib.h>\r
+#include <stdio.h>\r
+#include <string.h>\r
+#include "platform.h"\r
+#include "types.h"\r
+\r
+/* NAND writer utility version */\r
+char version[] = "01.00.00.05";\r
+\r
+/* The input file name is hard coded */\r
+char *input_file = "nand_writer_input.txt";\r
+\r
+uint32_t swap_byte = 0;\r
+volatile uint32_t nand_erase_flag = 0;\r
+\r
+/* Parameters defined in the input_file */\r
+#define FILE_NAME      "file_name"\r
+#define START_ADDR     "start_addr"\r
+#define RBL_ECC        "rbl_ecc"\r
+#define SKIP_BAD       "skip_bad"\r
+\r
+/* Memory address to store the write data */\r
+#define WRITE_DATA_ADDRESS     0x80000000\r
+\r
+/* NAND device specific definitions */\r
+#define BAD_BLOCK_MARKER_VALUE  0xA5\r
+\r
+/******************************************************************************\r
+ * Structure:   NAND_WRITER_INFO_T\r
+ *\r
+ *              NAND writer control data. This structure should be filled in\r
+ *              by the user before running\r
+ ******************************************************************************/\r
+#define MAX_LINE_LENGTH 40\r
+typedef struct NAND_WRITER_INFO_tag\r
+{\r
+    char        file_name[MAX_LINE_LENGTH]; /* CCS format data file name */\r
+    uint32_t    blockSizeBytes;             /* The size of each sector */\r
+    uint32_t    deviceTotalBytes;           /* Total number of bytes available in the device */\r
+    uint32_t    startAddr;                  /* Start address to write */\r
+    uint32_t    writeBytes;                 /* Number of bytes to be written into the device */\r
+    uint8_t     flags;                      /* Flag used for EVMK2H for multiple ECC formats */\r
+    uint8_t     skip_bad_blks;              /* Flag used to skip bad blocks */\r
+    uint8_t     *writeData;                 /* Address to store the write data */\r
+    uint8_t     *readData;                  /* Address to store the read data */\r
+\r
+} NAND_WRITER_INFO_T;\r
+\r
+NAND_WRITER_INFO_T nandWriterInfo;\r
+\r
+/* OSAL functions for Platform Library */\r
+uint8_t *Osal_platformMalloc (uint32_t num_bytes, uint32_t alignment)\r
+{\r
+       return malloc(num_bytes);\r
+}\r
+\r
+void Osal_platformFree (uint8_t *dataPtr, uint32_t num_bytes)\r
+{\r
+    /* Free up the memory */\r
+    if (dataPtr)\r
+    {\r
+        free(dataPtr);\r
+    }\r
+}\r
+\r
+void Osal_platformSpiCsEnter(void)\r
+{\r
+    return;\r
+}\r
+\r
+void Osal_platformSpiCsExit (void)\r
+{\r
+    return;\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    print_platform_errno\r
+ ******************************************************************************/\r
+void\r
+print_platform_errno\r
+(\r
+    void\r
+)\r
+{\r
+    printf ("Returned platform error number is %d\n", platform_errno);\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    checkBadBlockMark\r
+ *\r
+ *              Checks for the bad block mark. Returns TRUE if a block is marked bad.\r
+ ******************************************************************************/\r
+Bool\r
+checkBadBlockMark \r
+(\r
+    PLATFORM_DEVICE_info    *p_device,\r
+    uint32_t                  block\r
+)\r
+{\r
+    if (p_device->bblist[block] != 0xff)\r
+    {\r
+        return TRUE;\r
+    }\r
+    else\r
+    {\r
+        return FALSE;\r
+    }\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    markBlockBad\r
+ *\r
+ *              Mark a block as bad. Byte 5 of the spare area data is\r
+ *              written as 0xA5.\r
+ ******************************************************************************/\r
+void \r
+markBlockBad \r
+(\r
+    PLATFORM_DEVICE_info        *p_device,\r
+    uint32_t                    block\r
+)\r
+{\r
+    uint8_t       *spare_data;\r
+\r
+    spare_data = malloc(p_device->spare_size);\r
+    if (spare_data == NULL)\r
+    {\r
+        printf ("Can not allocate spare_data memory!\n");\r
+        return;\r
+    }\r
+\r
+    platform_device_read_spare_data(p_device->handle, block, 0, spare_data);\r
+\r
+    /* Set all data bytes to 0xff, only set the user defined bad block mark value */\r
+    spare_data[p_device->bboffset] = BAD_BLOCK_MARKER_VALUE;\r
+\r
+    /* Write the data to page */\r
+    platform_device_write_spare_data(p_device->handle, block, 0, spare_data);\r
+\r
+    /* Save the user defined bad block mark in bblist */\r
+    p_device->bblist[block] = BAD_BLOCK_MARKER_VALUE;\r
+\r
+    free (spare_data);\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    formBlock\r
+ *\r
+ *      Form a block of data to write to the NAND. The block is\r
+ *      created as a byte stream from the 4 byte stream in which\r
+ *      the MSB is always sent first.\r
+ ******************************************************************************/\r
+void\r
+formBlock\r
+(\r
+    uint32_t      *data,\r
+    uint32_t      blockSize,\r
+    uint8_t       *scratch\r
+)\r
+{\r
+    uint32_t i, j;\r
+\r
+    /* Convert the data to a byte stream */\r
+    for (i = j = 0; j < blockSize; i++, j+=4)\r
+    {\r
+        scratch[j+0] = (data[i] >> 24) & 0xff;\r
+        scratch[j+1] = (data[i] >> 16) & 0xff;\r
+        scratch[j+2] = (data[i] >>  8) & 0xff;\r
+        scratch[j+3] = (data[i] >>  0) & 0xff;\r
+    }\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    flash_nand\r
+ *\r
+ *              Write the image to flash.\r
+ *              Returns TRUE if the image is written successfully\r
+ *                      FALSE if the image write fails\r
+ ******************************************************************************/\r
+Bool \r
+flash_nand\r
+(\r
+    PLATFORM_DEVICE_info    *p_device\r
+)\r
+{\r
+    uint32_t      wPos, wLen;\r
+    uint32_t      block, start_block;\r
+    uint8_t       *scrach_block;\r
+    uint32_t      num_blks;\r
+    uint32_t      bad_block_found;\r
+\r
+    if (swap_byte)\r
+    {\r
+        scrach_block = malloc(nandWriterInfo.blockSizeBytes);\r
+        if (scrach_block == NULL)\r
+        {\r
+            printf ("Can not allocate scratch block memory!\n");\r
+            return (FALSE);\r
+        }\r
+    }\r
+\r
+    start_block = nandWriterInfo.startAddr / nandWriterInfo.blockSizeBytes;\r
+\r
+    /* skip the bad blocks if the flag is set */\r
+    if (nandWriterInfo.skip_bad_blks)\r
+    {\r
+       num_blks = nandWriterInfo.writeBytes / nandWriterInfo.blockSizeBytes;\r
+       if ((nandWriterInfo.writeBytes - nandWriterInfo.blockSizeBytes * num_blks) > 0)\r
+               num_blks++;\r
+\r
+       while (TRUE)\r
+       {\r
+               bad_block_found = FALSE;\r
+               for (block = start_block; block < start_block + num_blks; block++)\r
+               {\r
+                       if (checkBadBlockMark(p_device, block))\r
+                       {\r
+                               start_block = block + 1;\r
+                               bad_block_found = TRUE;\r
+                               break;\r
+                       }\r
+               }\r
+               if (bad_block_found == FALSE)\r
+                       break;\r
+       }\r
+    }\r
+\r
+    /* Program the NAND */\r
+    for (block = start_block, wPos = 0; wPos < nandWriterInfo.writeBytes; block++, wPos += nandWriterInfo.blockSizeBytes)\r
+    {\r
+        while(checkBadBlockMark(p_device, block))\r
+        {\r
+            printf ("Bad block # %d detected, skipping block ... \n", block);\r
+            if (++block == p_device->block_count)\r
+            {\r
+                printf ("Flash failed: End of device reached\n");\r
+                if (swap_byte) free (scrach_block);\r
+                return (FALSE);        \r
+            }\r
+        }\r
+\r
+        printf ("Flashing block %d (%d bytes of %d)\n", block, wPos, nandWriterInfo.writeBytes);\r
+\r
+       platform_device_erase_block(p_device->handle, block);\r
+\r
+        wLen = nandWriterInfo.blockSizeBytes;\r
+        if (nandWriterInfo.writeBytes - wPos < nandWriterInfo.blockSizeBytes)\r
+        {\r
+            wLen = nandWriterInfo.writeBytes - wPos;\r
+        }\r
+\r
+        if (swap_byte)\r
+        {\r
+            formBlock((uint32_t *)(&nandWriterInfo.writeData[wPos]), nandWriterInfo.blockSizeBytes, scrach_block);\r
+        }\r
+        else\r
+        {\r
+            scrach_block = &nandWriterInfo.writeData[wPos];\r
+        }\r
+        if (platform_device_write(p_device->handle, \r
+                                  block*nandWriterInfo.blockSizeBytes, \r
+                                  scrach_block, \r
+                                  wLen) != Platform_EOK)\r
+        {\r
+            printf ("platform_device_write block # %d failed!\n", block);\r
+            print_platform_errno();\r
+            if (swap_byte) free (scrach_block);\r
+            return (FALSE);\r
+        }\r
+\r
+    }\r
+\r
+    if (swap_byte) free (scrach_block);\r
+    return (TRUE);\r
+}    \r
+\r
+/******************************************************************************\r
+ * Function:    flash_verify\r
+ *\r
+ *              Read back the data file that was just flashed. On errors mark the block as bad.\r
+ *              Returns TRUE if the image verified correctly.\r
+ *                      FALSE if the image verification failed\r
+ ******************************************************************************/\r
+Bool \r
+flash_verify\r
+(\r
+    PLATFORM_DEVICE_info    *p_device\r
+)\r
+{\r
+    uint32_t      rPos, rLen;\r
+    uint32_t      i, j;\r
+    uint32_t      block, start_block;\r
+    uint8_t       *scrach_block;\r
+    uint32_t      *read_data_w;\r
+\r
+    if (swap_byte) \r
+    {\r
+        scrach_block = malloc(nandWriterInfo.blockSizeBytes);\r
+        if (scrach_block == NULL)\r
+        {\r
+            printf ("Can not allocate scratch block memory!\n");\r
+            return (FALSE);\r
+        }\r
+    }\r
+\r
+    start_block = nandWriterInfo.startAddr / nandWriterInfo.blockSizeBytes;\r
+\r
+    for (block = start_block, rPos = 0; rPos < nandWriterInfo.writeBytes; block++, rPos += nandWriterInfo.blockSizeBytes)\r
+    {\r
+        while(checkBadBlockMark(p_device, block))\r
+        {\r
+            printf ("Bad block # %d detected, skipping block ... \n", block);\r
+            if (++block == p_device->block_count)\r
+            {\r
+                printf ("Flash failed: End of device reached\n");\r
+                if (swap_byte) free (scrach_block);\r
+                return (FALSE);        \r
+            }\r
+        }\r
+\r
+\r
+        printf ("Reading and verifying block %d (%d bytes of %d)\n", block, rPos, nandWriterInfo.writeBytes);\r
+\r
+        if (!swap_byte)\r
+        {\r
+            scrach_block = &nandWriterInfo.readData[rPos];\r
+\r
+        }\r
+\r
+        /* Read a block of data */\r
+        if(platform_device_read(p_device->handle, \r
+                                block*nandWriterInfo.blockSizeBytes, \r
+                                scrach_block,\r
+                                nandWriterInfo.blockSizeBytes) != Platform_EOK)\r
+        {\r
+            printf ("Failure in reading block %d\n", block);\r
+            print_platform_errno();\r
+            if (platform_errno == PLATFORM_ERRNO_ECC_FAIL)\r
+            {\r
+                printf ("marking block %d as bad, re-flash attempted\n", block);\r
+                markBlockBad (p_device, block);\r
+            }\r
+            if (swap_byte) free (scrach_block);\r
+            return (FALSE);\r
+        }\r
+\r
+        /* Convert the packed data */\r
+        if (swap_byte)\r
+        {\r
+            read_data_w = (uint32_t *)(&nandWriterInfo.readData[rPos]);\r
+            for  (i = 0, j = 0; i < nandWriterInfo.blockSizeBytes; i += 4)\r
+                read_data_w[j++] = (scrach_block[i+0] << 24) | (scrach_block[i+1] << 16) | (scrach_block[i+2] << 8) | scrach_block[i+3];\r
+        }\r
+\r
+        rLen = nandWriterInfo.blockSizeBytes;\r
+        if (nandWriterInfo.writeBytes - rPos < nandWriterInfo.blockSizeBytes)\r
+        {\r
+            rLen = nandWriterInfo.writeBytes - rPos;\r
+        }\r
+\r
+        /* Compare the data read with data programmed */\r
+        for (i = rPos; i < rLen; i++)\r
+        {\r
+            if (nandWriterInfo.readData[i] != nandWriterInfo.writeData[i])\r
+            {\r
+                printf ("Failure in block %d, at byte %d, (at byte %d in the data file) expected 0x%08x, read 0x%08x\n", \r
+                        block, i, rPos, nandWriterInfo.writeData[i], nandWriterInfo.readData[i]);\r
+                if (swap_byte) free (scrach_block);\r
+                return (FALSE);\r
+            }\r
+        }\r
+\r
+    }\r
+\r
+    if (swap_byte) free (scrach_block);\r
+    return (TRUE);\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    parse_input_file  \r
+ ******************************************************************************/\r
+static Bool\r
+parse_input_file\r
+(\r
+    FILE*               fp\r
+)\r
+{\r
+    char line[MAX_LINE_LENGTH];\r
+    char tokens[] = " :=;\n\r";\r
+    char *key, *data;\r
+\r
+    memset(line, 0, MAX_LINE_LENGTH);\r
+\r
+    fgets(line, MAX_LINE_LENGTH, fp);\r
+    key  = (char *)strtok(line, tokens);\r
+    data = (char *)strtok(NULL, tokens);\r
+\r
+    if(strlen(data) == 0)\r
+    {\r
+       return FALSE;\r
+    }\r
+\r
+    if(strcmp(key, FILE_NAME) != 0)\r
+    {\r
+        return FALSE;\r
+    }\r
+\r
+    strcpy (nandWriterInfo.file_name, data);\r
+\r
+    fgets(line, MAX_LINE_LENGTH, fp);\r
+    key  = (char *)strtok(line, tokens);\r
+    data = (char *)strtok(NULL, tokens);\r
+\r
+    if(strlen(data) == 0)\r
+    {\r
+       return FALSE;\r
+    }\r
+\r
+    if(strcmp(key, START_ADDR) != 0)\r
+    {\r
+        return FALSE;\r
+    }\r
+\r
+    nandWriterInfo.startAddr = (uint32_t)atoi(data);\r
+    \r
+    fgets(line, MAX_LINE_LENGTH, fp);\r
+    key = (char *)strtok(line, tokens);\r
+    data = (char *)strtok(NULL, tokens);\r
+    \r
+    if(strlen(data) != 0 && (strcmp(key, RBL_ECC) == 0))\r
+    {\r
+        nandWriterInfo.flags = (uint8_t)atoi(data);\r
+    }\r
+    else\r
+    {\r
+        nandWriterInfo.flags = 0;\r
+    }\r
+\r
+    /* Scan skip bad block input parameter */\r
+    fgets(line, MAX_LINE_LENGTH, fp);\r
+    key = (char *)strtok(line, tokens);\r
+    data = (char *)strtok(NULL, tokens);\r
+\r
+    if(strlen(data) != 0 && (strcmp(key, SKIP_BAD) == 0))\r
+    {\r
+        nandWriterInfo.skip_bad_blks = (uint8_t)atoi(data);\r
+    }\r
+    else\r
+    {\r
+        nandWriterInfo.skip_bad_blks = 0;\r
+    }\r
+\r
+    return TRUE;\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    find_file_length\r
+ ******************************************************************************/\r
+static Bool\r
+find_file_length\r
+(\r
+    FILE*               fp\r
+)\r
+{\r
+    char        line[MAX_LINE_LENGTH];\r
+    char        *pEnd;\r
+    char        *ext;\r
+    uint32_t    data_len, write_addr;\r
+\r
+    memset(line, 0, MAX_LINE_LENGTH);\r
+\r
+    ext = strrchr(nandWriterInfo.file_name, '.');\r
+    if (ext && (strcmp(ext, ".dat") == 0))\r
+    {\r
+    fgets(line, MAX_LINE_LENGTH, fp);\r
+\r
+    /* Read the write address from the CCS header */\r
+    strtoul (line,&pEnd,16);\r
+    strtoul (pEnd,&pEnd,16);\r
+    write_addr = strtoul (pEnd,&pEnd,16);\r
+    strtoul (pEnd,&pEnd,16);\r
+\r
+    /* Read the data length */\r
+    data_len = (strtoul (pEnd,NULL,16)) * 4;\r
+    }\r
+    else\r
+    {\r
+        /* find the data length by seeking to the end and getting position */\r
+        fseek(fp, 0, SEEK_END);\r
+        data_len = ftell(fp);\r
+        fseek(fp, 0, SEEK_SET);\r
+    }\r
+\r
+    if (data_len > (nandWriterInfo.deviceTotalBytes - nandWriterInfo.startAddr))\r
+    {\r
+        printf ("The data file is too big to fit into the device.\n");\r
+        return FALSE;\r
+    }\r
+\r
+    nandWriterInfo.writeBytes = data_len;\r
+    if (write_addr != WRITE_DATA_ADDRESS)\r
+        write_addr = WRITE_DATA_ADDRESS;\r
+    nandWriterInfo.writeData  = (uint8_t *)write_addr;\r
+    nandWriterInfo.readData   = (uint8_t *)(write_addr + nandWriterInfo.deviceTotalBytes);\r
+\r
+    return TRUE;\r
+}\r
+\r
+static Bool \r
+nand_erase_all_blks(PLATFORM_DEVICE_info *p_device)\r
+{\r
+  uint32_t block;\r
+  uint32_t max_blks;\r
+\r
+  max_blks = p_device->block_count;\r
+  \r
+  for (block=0; block<max_blks;block++)\r
+  {\r
+      printf (".");\r
+      if (platform_device_erase_block(p_device->handle, block) != Platform_EOK)\r
+        return FALSE;\r
+  }\r
+\r
+  printf ("\nFormatted %d nand blocks \n", block);\r
+  return (TRUE);\r
+}\r
+\r
+/******************************************************************************\r
+ * Function:    main  \r
+ ******************************************************************************/\r
+void main ()\r
+{\r
+    FILE                    *fp;\r
+    platform_init_flags     init_flags;\r
+    platform_init_config    init_config;\r
+    PLATFORM_DEVICE_info    *p_device;\r
+    Bool                    ret;\r
+    uint32_t                rCount;\r
+    printf("NAND Writer Utility Version %s\n\n", version);\r
+\r
+    fp = fopen(input_file, "r");\r
+    if (fp == NULL)\r
+    {\r
+        printf("Error in opening %s input file\n", input_file);\r
+        return;\r
+    }\r
+\r
+    ret = parse_input_file(fp);\r
+    fclose (fp);\r
+\r
+    if (ret == FALSE)\r
+    {\r
+        printf("Error in parsing %s input file\n", input_file);\r
+        return;\r
+    }\r
+\r
+    /* Initialize main Platform lib */\r
+    memset(&init_config, 0, sizeof(platform_init_config));\r
+    memset(&init_flags, 1, sizeof(platform_init_flags));\r
+    init_flags.pll = 0;\r
+    init_flags.ddr = 0;\r
+    init_flags.phy =0;\r
+    if (platform_init(&init_flags, &init_config) != Platform_EOK)\r
+    {\r
+        printf ("Platform init failed!\n");\r
+        print_platform_errno();\r
+        return;\r
+    }\r
+#if (defined(_EVMC6657L_) || defined(DEVICE_K2H))\r
+     p_device = platform_device_open(PLATFORM_DEVID_MT29F1G08ABCHC, nandWriterInfo.flags);\r
+#elif defined(DEVICE_K2E)\r
+     p_device = platform_device_open(PLATFORM_DEVID_MT29F4G08ABADA, nandWriterInfo.flags);\r
+#elif defined(DEVICE_K2L)\r
+     p_device = platform_device_open(PLATFORM_DEVID_MT29F16G08ADBCAH4C, nandWriterInfo.flags);\r
+#elif defined(DEVICE_K2G)\r
+     p_device = platform_device_open(PLATFORM_DEVID_MT29F2G16ABAFA, nandWriterInfo.flags);\r
+#else\r
+    p_device = platform_device_open(PLATFORM_DEVID_NAND512R3A2D, 0);\r
+#endif\r
+    if (p_device == NULL) \r
+    {\r
+        printf ("NAND device open failed!\n");\r
+        print_platform_errno();\r
+        return;\r
+    }\r
+    nandWriterInfo.deviceTotalBytes = p_device->block_count * p_device->page_count * p_device->page_size;\r
+    nandWriterInfo.blockSizeBytes   = p_device->page_count * p_device->page_size;\r
+\r
+    if ((nandWriterInfo.startAddr % nandWriterInfo.blockSizeBytes) != 0)\r
+    {\r
+        printf ("The start programming address 0x%8x set in %s is not at the beginning of a block, block size = 0x%4x\n", \r
+                nandWriterInfo.startAddr, \r
+                nandWriterInfo.file_name,\r
+                nandWriterInfo.blockSizeBytes);\r
+        return;\r
+    }\r
+\r
+    /* Check if we need to erase the nand completely */\r
+     if (nand_erase_flag == 0x12345678)\r
+     {\r
+        if (nand_erase_all_blks(p_device) == FALSE)\r
+        {\r
+           printf ("Formatting all nand blocks - failed \n");\r
+        }\r
+        else\r
+        {\r
+           printf ("Formatting all nand blocks - Successful\n");\r
+        }\r
+        platform_device_close(p_device->handle);\r
+        /* Operation Complete */\r
+        return;\r
+     }\r
+\r
+    /* Open and find the length of the data file */\r
+    fp = fopen (nandWriterInfo.file_name, "rb");\r
+    if (fp == NULL)\r
+    {\r
+      printf ("Failed to open file %s\n", nandWriterInfo.file_name);\r
+      platform_device_close(p_device->handle);\r
+      return;\r
+    }\r
+\r
+    /* Parse the CCS format file */\r
+    ret = find_file_length(fp);\r
+    fclose (fp);\r
+    if (ret == FALSE)\r
+    {\r
+        printf("Error in parsing CCS file %s\n", nandWriterInfo.file_name);\r
+        platform_device_close(p_device->handle);\r
+        return;\r
+    }\r
+    \r
+    /* Write the flash, verify the results. On read back failure mark\r
+     * the block as bad and try rewriting again */\r
+    rCount = 0;\r
+\r
+    do  \r
+    {\r
+        if (flash_nand (p_device) == FALSE)\r
+        {\r
+            printf ("NAND write giving up\n");\r
+            return;\r
+        }\r
+\r
+        rCount += 1;\r
+\r
+    }  while ((flash_verify (p_device) == FALSE) && (rCount < 5));\r
+\r
+    \r
+    if (rCount >= 5) \r
+    {\r
+        printf ("NAND write failed (maximum retries reached)\n");\r
+    }\r
+    else\r
+    {\r
+        printf ("NAND programming completed successfully\n");\r
+    }\r
+\r
+    platform_device_close(p_device->handle);\r
+    \r
+    return;\r
+}\r
+\r
+\r
+\r
+\r