Fork of the vendor (Boundary Devices) u-boot for Reform 2, with minor tweaks. The goal is to migrate to mainstream u-boot or barebox ASAP. The main impediment so far is the 4GB RAM config.
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  1. /*
  2. * (C) Copyright 2008 Semihalf
  3. *
  4. * (C) Copyright 2000-2004
  5. * DENX Software Engineering
  6. * Wolfgang Denk, wd@denx.de
  7. *
  8. * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
  9. * default_image specific code abstracted from mkimage.c
  10. * some functions added to address abstraction
  11. *
  12. * All rights reserved.
  13. *
  14. * SPDX-License-Identifier: GPL-2.0+
  15. */
  16. #include "imagetool.h"
  17. #include "mkimage.h"
  18. #include <image.h>
  19. #include <u-boot/crc.h>
  20. static image_header_t header;
  21. static int image_check_image_types(uint8_t type)
  22. {
  23. if (((type > IH_TYPE_INVALID) && (type < IH_TYPE_FLATDT)) ||
  24. (type == IH_TYPE_KERNEL_NOLOAD) || (type == IH_TYPE_FIRMWARE_IVT))
  25. return EXIT_SUCCESS;
  26. else
  27. return EXIT_FAILURE;
  28. }
  29. static int image_check_params(struct image_tool_params *params)
  30. {
  31. return ((params->dflag && (params->fflag || params->lflag)) ||
  32. (params->fflag && (params->dflag || params->lflag)) ||
  33. (params->lflag && (params->dflag || params->fflag)));
  34. }
  35. static int image_verify_header(unsigned char *ptr, int image_size,
  36. struct image_tool_params *params)
  37. {
  38. uint32_t len;
  39. const unsigned char *data;
  40. uint32_t checksum;
  41. image_header_t header;
  42. image_header_t *hdr = &header;
  43. /*
  44. * create copy of header so that we can blank out the
  45. * checksum field for checking - this can't be done
  46. * on the PROT_READ mapped data.
  47. */
  48. memcpy(hdr, ptr, sizeof(image_header_t));
  49. if (be32_to_cpu(hdr->ih_magic) != IH_MAGIC) {
  50. debug("%s: Bad Magic Number: \"%s\" is no valid image\n",
  51. params->cmdname, params->imagefile);
  52. return -FDT_ERR_BADMAGIC;
  53. }
  54. data = (const unsigned char *)hdr;
  55. len = sizeof(image_header_t);
  56. checksum = be32_to_cpu(hdr->ih_hcrc);
  57. hdr->ih_hcrc = cpu_to_be32(0); /* clear for re-calculation */
  58. if (crc32(0, data, len) != checksum) {
  59. debug("%s: ERROR: \"%s\" has bad header checksum!\n",
  60. params->cmdname, params->imagefile);
  61. return -FDT_ERR_BADSTATE;
  62. }
  63. data = (const unsigned char *)ptr + sizeof(image_header_t);
  64. len = image_size - sizeof(image_header_t) ;
  65. checksum = be32_to_cpu(hdr->ih_dcrc);
  66. if (crc32(0, data, len) != checksum) {
  67. debug("%s: ERROR: \"%s\" has corrupted data!\n",
  68. params->cmdname, params->imagefile);
  69. return -FDT_ERR_BADSTRUCTURE;
  70. }
  71. return 0;
  72. }
  73. static void image_set_header(void *ptr, struct stat *sbuf, int ifd,
  74. struct image_tool_params *params)
  75. {
  76. uint32_t checksum;
  77. time_t time;
  78. uint32_t imagesize;
  79. image_header_t * hdr = (image_header_t *)ptr;
  80. checksum = crc32(0,
  81. (const unsigned char *)(ptr +
  82. sizeof(image_header_t)),
  83. sbuf->st_size - sizeof(image_header_t));
  84. time = imagetool_get_source_date(params, sbuf->st_mtime);
  85. if (params->type == IH_TYPE_FIRMWARE_IVT)
  86. /* Add size of CSF minus IVT */
  87. imagesize = sbuf->st_size - sizeof(image_header_t) + 0x1FE0;
  88. else
  89. imagesize = sbuf->st_size - sizeof(image_header_t);
  90. /* Build new header */
  91. image_set_magic(hdr, IH_MAGIC);
  92. image_set_time(hdr, time);
  93. image_set_size(hdr, imagesize);
  94. image_set_load(hdr, params->addr);
  95. image_set_ep(hdr, params->ep);
  96. image_set_dcrc(hdr, checksum);
  97. image_set_os(hdr, params->os);
  98. image_set_arch(hdr, params->arch);
  99. image_set_type(hdr, params->type);
  100. image_set_comp(hdr, params->comp);
  101. image_set_name(hdr, params->imagename);
  102. checksum = crc32(0, (const unsigned char *)hdr,
  103. sizeof(image_header_t));
  104. image_set_hcrc(hdr, checksum);
  105. }
  106. static int image_extract_subimage(void *ptr, struct image_tool_params *params)
  107. {
  108. const image_header_t *hdr = (const image_header_t *)ptr;
  109. ulong file_data;
  110. ulong file_len;
  111. if (image_check_type(hdr, IH_TYPE_MULTI)) {
  112. ulong idx = params->pflag;
  113. ulong count;
  114. /* get the number of data files present in the image */
  115. count = image_multi_count(hdr);
  116. /* retrieve the "data file" at the idx position */
  117. image_multi_getimg(hdr, idx, &file_data, &file_len);
  118. if ((file_len == 0) || (idx >= count)) {
  119. fprintf(stderr, "%s: No such data file %ld in \"%s\"\n",
  120. params->cmdname, idx, params->imagefile);
  121. return -1;
  122. }
  123. } else {
  124. file_data = image_get_data(hdr);
  125. file_len = image_get_size(hdr);
  126. }
  127. /* save the "data file" into the file system */
  128. return imagetool_save_subimage(params->outfile, file_data, file_len);
  129. }
  130. /*
  131. * Default image type parameters definition
  132. */
  133. U_BOOT_IMAGE_TYPE(
  134. defimage,
  135. "Default Image support",
  136. sizeof(image_header_t),
  137. (void *)&header,
  138. image_check_params,
  139. image_verify_header,
  140. image_print_contents,
  141. image_set_header,
  142. image_extract_subimage,
  143. image_check_image_types,
  144. NULL,
  145. NULL
  146. );