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 void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
  17                             struct image_tool_params *params)
  18 {
  19         unsigned int size;
  20         int ret;
  21
  22         /*
  23          * We need to calculate this using 'RK_SPL_HDR_START' and not using
  24          * 'tparams->header_size', as the additional byte inserted when
  25          * 'is_boot0' is true counts towards the payload (and not towards the
  26          * header).
  27          */
  28         size = params->file_size - RK_SPL_HDR_START;
  29         ret = rkcommon_set_header(buf, size, params);
  30         if (ret) {
  31                 /* TODO(sjg@chromium.org): This method should return an error */
  32                 printf("Warning: SPL image is too large (size %#x) and will "
  33                        "not boot\n", size);
  34         }
  35 }
  36
  37 static int rksd_check_image_type(uint8_t type)
  38 {
  39         if (type == IH_TYPE_RKSD)
  40                 return EXIT_SUCCESS;
  41         else
  42                 return EXIT_FAILURE;
  43 }
  44
  45 static int rksd_vrec_header(struct image_tool_params *params,
  46                             struct image_type_params *tparams)
  47 {
  48         /*
  49          * Pad to a 2KB alignment, as required for init_size by the ROM
  50          * (see https://lists.denx.de/pipermail/u-boot/2017-May/293268.html)
  51          */
  52         return rkcommon_vrec_header(params, tparams, RK_INIT_SIZE_ALIGN);
  53 }
  54
  55 /*
  56  * rk_sd parameters
  57  */
  58 U_BOOT_IMAGE_TYPE(
  59         rksd,
  60         "Rockchip SD Boot Image support",
  61         0,
  62         NULL,
  63         rkcommon_check_params,
  64         rkcommon_verify_header,
  65         rkcommon_print_header,
  66         rksd_set_header,
  67         NULL,
  68         rksd_check_image_type,
  69         NULL,
  70         rksd_vrec_header
  71 );