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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 );