tools/rksd.c

   1 /*
   2  * (C) Copyright 2015 Google,  Inc
   3  * Written by Simon Glass <sjg@chromium.org>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  *
   7  * See README.rockchip for details of the rksd format
   8  */
   9
  10 #include "imagetool.h"
  11 #include <image.h>
  12 #include <rc4.h>
  13 #include "mkimage.h"
  14 #include "rkcommon.h"
  15
  16 static int rksd_verify_header(unsigned char *buf,  int size,
  17                                  struct image_tool_params *params)
  18 {
  19         return 0;
  20 }
  21
  22 static void rksd_print_header(const void *buf)
  23 {
  24 }
  25
  26 static void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
  27                                struct image_tool_params *params)
  28 {
  29         unsigned int size;
  30         int ret;
  31
  32         size = params->file_size - RK_SPL_HDR_START;
  33         ret = rkcommon_set_header(buf, size, params);
  34         if (ret) {
  35                 /* TODO(sjg@chromium.org): This method should return an error */
  36                 printf("Warning: SPL image is too large (size %#x) and will not boot\n",
  37                        size);
  38         }
  39 }
  40
  41 static int rksd_extract_subimage(void *buf,  struct image_tool_params *params)
  42 {
  43         return 0;
  44 }
  45
  46 static int rksd_check_image_type(uint8_t type)
  47 {
  48         if (type == IH_TYPE_RKSD)
  49                 return EXIT_SUCCESS;
  50         else
  51                 return EXIT_FAILURE;
  52 }
  53
  54 /* We pad the file out to a fixed size - this method returns that size */
  55 static int rksd_vrec_header(struct image_tool_params *params,
  56                             struct image_type_params *tparams)
  57 {
  58         int pad_size;
  59
  60         rkcommon_vrec_header(params, tparams);
  61
  62         pad_size = RK_SPL_HDR_START + rkcommon_get_spl_size(params);
  63         debug("pad_size %x\n", pad_size);
  64
  65         return pad_size - params->file_size - tparams->header_size;
  66 }
  67
  68 /*
  69  * rk_sd parameters
  70  */
  71 U_BOOT_IMAGE_TYPE(
  72         rksd,
  73         "Rockchip SD Boot Image support",
  74         0,
  75         NULL,
  76         rkcommon_check_params,
  77         rksd_verify_header,
  78         rksd_print_header,
  79         rksd_set_header,
  80         rksd_extract_subimage,
  81         rksd_check_image_type,
  82         NULL,
  83         rksd_vrec_header
  84 );