xref: /openbmc/u-boot/tools/rksd.c (revision a02ab5ea)
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 char dummy_hdr[RK_IMAGE_HEADER_LEN];
17 
18 static int rksd_verify_header(unsigned char *buf,  int size,
19 				 struct image_tool_params *params)
20 {
21 	return 0;
22 }
23 
24 static void rksd_print_header(const void *buf)
25 {
26 }
27 
28 static void rksd_set_header(void *buf,  struct stat *sbuf,  int ifd,
29 			       struct image_tool_params *params)
30 {
31 	unsigned int size;
32 	int ret;
33 
34 	size = params->file_size - RK_SPL_HDR_START;
35 	ret = rkcommon_set_header(buf, size, params);
36 	if (ret) {
37 		/* TODO(sjg@chromium.org): This method should return an error */
38 		printf("Warning: SPL image is too large (size %#x) and will not boot\n",
39 		       size);
40 	}
41 
42 	memcpy(buf + RK_SPL_HDR_START, rkcommon_get_spl_hdr(params),
43 	       RK_SPL_HDR_SIZE);
44 }
45 
46 static int rksd_extract_subimage(void *buf,  struct image_tool_params *params)
47 {
48 	return 0;
49 }
50 
51 static int rksd_check_image_type(uint8_t type)
52 {
53 	if (type == IH_TYPE_RKSD)
54 		return EXIT_SUCCESS;
55 	else
56 		return EXIT_FAILURE;
57 }
58 
59 /* We pad the file out to a fixed size - this method returns that size */
60 static int rksd_vrec_header(struct image_tool_params *params,
61 			    struct image_type_params *tparams)
62 {
63 	int pad_size;
64 
65 	pad_size = RK_SPL_HDR_START + rkcommon_get_spl_size(params);
66 	debug("pad_size %x\n", pad_size);
67 
68 	return pad_size - params->file_size;
69 }
70 
71 /*
72  * rk_sd parameters
73  */
74 U_BOOT_IMAGE_TYPE(
75 	rksd,
76 	"Rockchip SD Boot Image support",
77 	RK_IMAGE_HEADER_LEN,
78 	dummy_hdr,
79 	rkcommon_check_params,
80 	rksd_verify_header,
81 	rksd_print_header,
82 	rksd_set_header,
83 	rksd_extract_subimage,
84 	rksd_check_image_type,
85 	NULL,
86 	rksd_vrec_header
87 );
88