tools/rksd.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2015 Google,  Inc
   4  * Written by Simon Glass <sjg@chromium.org>
   5  *
   6  * See README.rockchip for details of the rksd format
   7  */
   8
   9 #include "imagetool.h"
  10 #include <image.h>
  11 #include <rc4.h>
  12 #include "mkimage.h"
  13 #include "rkcommon.h"
  14
  15 static void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
  16                             struct image_tool_params *params)
  17 {
  18         unsigned int size;
  19         int ret;
  20
  21         /*
  22          * We need to calculate this using 'RK_SPL_HDR_START' and not using
  23          * 'tparams->header_size', as the additional byte inserted when
  24          * 'is_boot0' is true counts towards the payload (and not towards the
  25          * header).
  26          */
  27         size = params->file_size - RK_SPL_HDR_START;
  28         ret = rkcommon_set_header(buf, size, params);
  29         if (ret) {
  30                 /* TODO(sjg@chromium.org): This method should return an error */
  31                 printf("Warning: SPL image is too large (size %#x) and will "
  32                        "not boot\n", size);
  33         }
  34 }
  35
  36 static int rksd_check_image_type(uint8_t type)
  37 {
  38         if (type == IH_TYPE_RKSD)
  39                 return EXIT_SUCCESS;
  40         else
  41                 return EXIT_FAILURE;
  42 }
  43
  44 static int rksd_vrec_header(struct image_tool_params *params,
  45                             struct image_type_params *tparams)
  46 {
  47         /*
  48          * Pad to a 2KB alignment, as required for init_size by the ROM
  49          * (see https://lists.denx.de/pipermail/u-boot/2017-May/293268.html)
  50          */
  51         return rkcommon_vrec_header(params, tparams, RK_INIT_SIZE_ALIGN);
  52 }
  53
  54 /*
  55  * rk_sd parameters
  56  */
  57 U_BOOT_IMAGE_TYPE(
  58         rksd,
  59         "Rockchip SD Boot Image support",
  60         0,
  61         NULL,
  62         rkcommon_check_params,
  63         rkcommon_verify_header,
  64         rkcommon_print_header,
  65         rksd_set_header,
  66         NULL,
  67         rksd_check_image_type,
  68         NULL,
  69         rksd_vrec_header
  70 );