xref: /openbmc/u-boot/tools/rksd.c (revision 7810fb95)
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 );
85