ColdFire: Add Freescale MCF54418TWR ColdFire development board support
[glsdk/glsdk-u-boot.git] / tools / omapimage.c
1 /*
2  * (C) Copyright 2010
3  * Linaro LTD, www.linaro.org
4  * Author: John Rigby <john.rigby@linaro.org>
5  * Based on TI's signGP.c
6  *
7  * (C) Copyright 2009
8  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
9  *
10  * (C) Copyright 2008
11  * Marvell Semiconductor <www.marvell.com>
12  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
13  *
14  * See file CREDITS for list of people who contributed to this
15  * project.
16  *
17  * This program is free software; you can redistribute it and/or
18  * modify it under the terms of the GNU General Public License as
19  * published by the Free Software Foundation; either version 2 of
20  * the License, or (at your option) any later version.
21  *
22  * This program is distributed in the hope that it will be useful,
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25  * GNU General Public License for more details.
26  *
27  * You should have received a copy of the GNU General Public License
28  * along with this program; if not, write to the Free Software
29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
30  * MA 02111-1307 USA
31  */
33 /* Required to obtain the getline prototype from stdio.h */
34 #define _GNU_SOURCE
36 #include "mkimage.h"
37 #include <image.h>
38 #include "omapimage.h"
40 /* Header size is CH header rounded up to 512 bytes plus GP header */
41 #define OMAP_CH_HDR_SIZE 512
42 #define OMAP_GP_HDR_SIZE (sizeof(struct gp_header))
43 #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE)
45 static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
47 static int omapimage_check_image_types(uint8_t type)
48 {
49         if (type == IH_TYPE_OMAPIMAGE)
50                 return EXIT_SUCCESS;
51         else {
52                 return EXIT_FAILURE;
53         }
54 }
56 /*
57  * Only the simplest image type is currently supported:
58  * TOC pointing to CHSETTINGS
59  * TOC terminator
60  * CHSETTINGS
61  *
62  * padding to OMAP_CH_HDR_SIZE bytes
63  *
64  * gp header
65  *   size
66  *   load_addr
67  */
68 static int valid_gph_size(uint32_t size)
69 {
70         return size;
71 }
73 static int valid_gph_load_addr(uint32_t load_addr)
74 {
75         return load_addr;
76 }
78 static int omapimage_verify_header(unsigned char *ptr, int image_size,
79                         struct mkimage_params *params)
80 {
81         struct ch_toc *toc = (struct ch_toc *)ptr;
82         struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
83         uint32_t offset, size;
85         while (toc->section_offset != 0xffffffff
86                         && toc->section_size != 0xffffffff) {
87                 offset = toc->section_offset;
88                 size = toc->section_size;
89                 if (!offset || !size)
90                         return -1;
91                 if (offset >= OMAP_CH_HDR_SIZE ||
92                     offset+size >= OMAP_CH_HDR_SIZE)
93                         return -1;
94                 toc++;
95         }
96         if (!valid_gph_size(gph->size))
97                 return -1;
98         if (!valid_gph_load_addr(gph->load_addr))
99                 return -1;
101         return 0;
104 static void omapimage_print_section(struct ch_settings *chs)
106         const char *section_name;
108         if (chs->section_key)
109                 section_name = "CHSETTINGS";
110         else
111                 section_name = "UNKNOWNKEY";
113         printf("%s (%x) "
114                 "valid:%x "
115                 "version:%x "
116                 "reserved:%x "
117                 "flags:%x\n",
118                 section_name,
119                 chs->section_key,
120                 chs->valid,
121                 chs->version,
122                 chs->reserved,
123                 chs->flags);
126 static void omapimage_print_header(const void *ptr)
128         const struct ch_toc *toc = (struct ch_toc *)ptr;
129         const struct gp_header *gph =
130                         (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
131         uint32_t offset, size;
133         while (toc->section_offset != 0xffffffff
134                         && toc->section_size != 0xffffffff) {
135                 offset = toc->section_offset;
136                 size = toc->section_size;
138                 if (offset >= OMAP_CH_HDR_SIZE ||
139                     offset+size >= OMAP_CH_HDR_SIZE)
140                         exit(EXIT_FAILURE);
142                 printf("Section %s offset %x length %x\n",
143                         toc->section_name,
144                         toc->section_offset,
145                         toc->section_size);
147                 omapimage_print_section((struct ch_settings *)(ptr+offset));
148                 toc++;
149         }
151         if (!valid_gph_size(gph->size)) {
152                 fprintf(stderr,
153                         "Error: invalid image size %x\n",
154                         gph->size);
155                 exit(EXIT_FAILURE);
156         }
158         if (!valid_gph_load_addr(gph->load_addr)) {
159                 fprintf(stderr,
160                         "Error: invalid image load address %x\n",
161                         gph->size);
162                 exit(EXIT_FAILURE);
163         }
165         printf("GP Header: Size %x LoadAddr %x\n",
166                 gph->size, gph->load_addr);
169 static int toc_offset(void *hdr, void *member)
171         return member - hdr;
174 static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
175                                 struct mkimage_params *params)
177         struct ch_toc *toc = (struct ch_toc *)ptr;
178         struct ch_settings *chs = (struct ch_settings *)
179                                         (ptr + 2 * sizeof(*toc));
180         struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);
182         toc->section_offset = toc_offset(ptr, chs);
183         toc->section_size = sizeof(struct ch_settings);
184         strcpy((char *)toc->section_name, "CHSETTINGS");
186         chs->section_key = KEY_CHSETTINGS;
187         chs->valid = 0;
188         chs->version = 1;
189         chs->reserved = 0;
190         chs->flags = 0;
192         toc++;
193         memset(toc, 0xff, sizeof(*toc));
195         gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
196         gph->load_addr = params->addr;
199 int omapimage_check_params(struct mkimage_params *params)
201         return  (params->dflag && (params->fflag || params->lflag)) ||
202                 (params->fflag && (params->dflag || params->lflag)) ||
203                 (params->lflag && (params->dflag || params->fflag));
206 /*
207  * omapimage parameters
208  */
209 static struct image_type_params omapimage_params = {
210         .name           = "TI OMAP CH/GP Boot Image support",
211         .header_size    = OMAP_FILE_HDR_SIZE,
212         .hdr            = (void *)&omapimage_header,
213         .check_image_type = omapimage_check_image_types,
214         .verify_header  = omapimage_verify_header,
215         .print_header   = omapimage_print_header,
216         .set_header     = omapimage_set_header,
217         .check_params   = omapimage_check_params,
218 };
220 void init_omap_image_type(void)
222         mkimage_register(&omapimage_params);