summaryrefslogtreecommitdiff
path: root/tools/omapimage.c
blob: 1e0c16479681aec2d8621eabd953ff9a8cdb203c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
/*
 * (C) Copyright 2010
 * Linaro LTD, www.linaro.org
 * Author: John Rigby <john.rigby@linaro.org>
 * Based on TI's signGP.c
 *
 * (C) Copyright 2009
 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
 *
 * (C) Copyright 2008
 * Marvell Semiconductor <www.marvell.com>
 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include "imagetool.h"
#include <compiler.h>
#include <image.h>
#include "gpheader.h"
#include "omapimage.h"

/* Header size is CH header rounded up to 512 bytes plus GP header */
#define OMAP_CH_HDR_SIZE 512
#define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE + GPIMAGE_HDR_SIZE)

static int do_swap32 = 0;

static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];

static int omapimage_check_image_types(uint8_t type)
{
	if (type == IH_TYPE_OMAPIMAGE)
		return EXIT_SUCCESS;
	return EXIT_FAILURE;
}

static int omapimage_verify_header(unsigned char *ptr, int image_size,
			struct image_tool_params *params)
{
	struct ch_toc *toc = (struct ch_toc *)ptr;
	struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
	uint32_t offset, size;

	while (toc->section_offset != 0xffffffff
			&& toc->section_size != 0xffffffff) {
		if (do_swap32) {
			offset = cpu_to_be32(toc->section_offset);
			size = cpu_to_be32(toc->section_size);
		} else {
			offset = toc->section_offset;
			size = toc->section_size;
		}
		if (!offset || !size)
			return -1;
		if (offset >= OMAP_CH_HDR_SIZE ||
		    offset+size >= OMAP_CH_HDR_SIZE)
			return -1;
		toc++;
	}

	return gph_verify_header(gph, do_swap32);
}

static void omapimage_print_section(struct ch_settings *chs)
{
	const char *section_name;

	if (chs->section_key)
		section_name = "CHSETTINGS";
	else
		section_name = "UNKNOWNKEY";

	printf("%s (%x) "
		"valid:%x "
		"version:%x "
		"reserved:%x "
		"flags:%x\n",
		section_name,
		chs->section_key,
		chs->valid,
		chs->version,
		chs->reserved,
		chs->flags);
}

static void omapimage_print_header(const void *ptr)
{
	const struct ch_toc *toc = (struct ch_toc *)ptr;
	const struct gp_header *gph =
			(struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
	uint32_t offset, size;

	while (toc->section_offset != 0xffffffff
			&& toc->section_size != 0xffffffff) {
		if (do_swap32) {
			offset = cpu_to_be32(toc->section_offset);
			size = cpu_to_be32(toc->section_size);
		} else {
			offset = toc->section_offset;
			size = toc->section_size;
		}

		if (offset >= OMAP_CH_HDR_SIZE ||
		    offset+size >= OMAP_CH_HDR_SIZE)
			exit(EXIT_FAILURE);

		printf("Section %s offset %x length %x\n",
			toc->section_name,
			toc->section_offset,
			toc->section_size);

		omapimage_print_section((struct ch_settings *)(ptr+offset));
		toc++;
	}

	gph_print_header(gph, do_swap32);
}

static int toc_offset(void *hdr, void *member)
{
	return member - hdr;
}

static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
				struct image_tool_params *params)
{
	struct ch_toc *toc = (struct ch_toc *)ptr;
	struct ch_settings *chs = (struct ch_settings *)
					(ptr + 2 * sizeof(*toc));
	struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);

	toc->section_offset = toc_offset(ptr, chs);
	toc->section_size = sizeof(struct ch_settings);
	strcpy((char *)toc->section_name, "CHSETTINGS");

	chs->section_key = KEY_CHSETTINGS;
	chs->valid = 0;
	chs->version = 1;
	chs->reserved = 0;
	chs->flags = 0;

	toc++;
	memset(toc, 0xff, sizeof(*toc));

	gph_set_header(gph, sbuf->st_size - OMAP_FILE_HDR_SIZE,
		       params->addr, 0);

	if (strncmp(params->imagename, "byteswap", 8) == 0) {
		do_swap32 = 1;
		int swapped = 0;
		uint32_t *data = (uint32_t *)ptr;

		while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
			*data = cpu_to_be32(*data);
			swapped++;
			data++;
		}
	}
}

/*
 * omapimage parameters
 */
static struct image_type_params omapimage_params = {
	.name		= "TI OMAP CH/GP Boot Image support",
	.header_size	= OMAP_FILE_HDR_SIZE,
	.hdr		= (void *)&omapimage_header,
	.check_image_type = omapimage_check_image_types,
	.verify_header	= omapimage_verify_header,
	.print_header	= omapimage_print_header,
	.set_header	= omapimage_set_header,
	.check_params	= gpimage_check_params,
};

void init_omap_image_type(void)
{
	register_image_type(&omapimage_params);
}