3 * Linaro LTD, www.linaro.org
4 * Author: John Rigby <john.rigby@linaro.org>
5 * Based on TI's signGP.c
8 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
11 * Marvell Semiconductor <www.marvell.com>
12 * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
14 * SPDX-License-Identifier: GPL-2.0+
17 /* Required to obtain the getline prototype from stdio.h */
22 #include "omapimage.h"
24 /* Header size is CH header rounded up to 512 bytes plus GP header */
25 #define OMAP_CH_HDR_SIZE 512
26 #define OMAP_GP_HDR_SIZE (sizeof(struct gp_header))
27 #define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE)
29 static int do_swap32 = 0;
31 static uint32_t omapimage_swap32(uint32_t data)
34 result = (data & 0xFF000000) >> 24;
35 result |= (data & 0x00FF0000) >> 8;
36 result |= (data & 0x0000FF00) << 8;
37 result |= (data & 0x000000FF) << 24;
41 static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
43 static int omapimage_check_image_types(uint8_t type)
45 if (type == IH_TYPE_OMAPIMAGE)
53 * Only the simplest image type is currently supported:
54 * TOC pointing to CHSETTINGS
58 * padding to OMAP_CH_HDR_SIZE bytes
64 static int valid_gph_size(uint32_t size)
69 static int valid_gph_load_addr(uint32_t load_addr)
74 static int omapimage_verify_header(unsigned char *ptr, int image_size,
75 struct mkimage_params *params)
77 struct ch_toc *toc = (struct ch_toc *)ptr;
78 struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
79 uint32_t offset, size, gph_size, gph_load_addr;
81 while (toc->section_offset != 0xffffffff
82 && toc->section_size != 0xffffffff) {
84 offset = omapimage_swap32(toc->section_offset);
85 size = omapimage_swap32(toc->section_size);
87 offset = toc->section_offset;
88 size = toc->section_size;
92 if (offset >= OMAP_CH_HDR_SIZE ||
93 offset+size >= OMAP_CH_HDR_SIZE)
99 gph_size = omapimage_swap32(gph->size);
100 gph_load_addr = omapimage_swap32(gph->load_addr);
102 gph_size = gph->size;
103 gph_load_addr = gph->load_addr;
106 if (!valid_gph_size(gph_size))
108 if (!valid_gph_load_addr(gph_load_addr))
114 static void omapimage_print_section(struct ch_settings *chs)
116 const char *section_name;
118 if (chs->section_key)
119 section_name = "CHSETTINGS";
121 section_name = "UNKNOWNKEY";
136 static void omapimage_print_header(const void *ptr)
138 const struct ch_toc *toc = (struct ch_toc *)ptr;
139 const struct gp_header *gph =
140 (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
141 uint32_t offset, size, gph_size, gph_load_addr;
143 while (toc->section_offset != 0xffffffff
144 && toc->section_size != 0xffffffff) {
146 offset = omapimage_swap32(toc->section_offset);
147 size = omapimage_swap32(toc->section_size);
149 offset = toc->section_offset;
150 size = toc->section_size;
153 if (offset >= OMAP_CH_HDR_SIZE ||
154 offset+size >= OMAP_CH_HDR_SIZE)
157 printf("Section %s offset %x length %x\n",
162 omapimage_print_section((struct ch_settings *)(ptr+offset));
167 gph_size = omapimage_swap32(gph->size);
168 gph_load_addr = omapimage_swap32(gph->load_addr);
170 gph_size = gph->size;
171 gph_load_addr = gph->load_addr;
174 if (!valid_gph_size(gph_size)) {
175 fprintf(stderr, "Error: invalid image size %x\n", gph_size);
179 if (!valid_gph_load_addr(gph_load_addr)) {
180 fprintf(stderr, "Error: invalid image load address %x\n",
185 printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr);
188 static int toc_offset(void *hdr, void *member)
193 static void omapimage_set_header(void *ptr, struct stat *sbuf, int ifd,
194 struct mkimage_params *params)
196 struct ch_toc *toc = (struct ch_toc *)ptr;
197 struct ch_settings *chs = (struct ch_settings *)
198 (ptr + 2 * sizeof(*toc));
199 struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);
201 toc->section_offset = toc_offset(ptr, chs);
202 toc->section_size = sizeof(struct ch_settings);
203 strcpy((char *)toc->section_name, "CHSETTINGS");
205 chs->section_key = KEY_CHSETTINGS;
212 memset(toc, 0xff, sizeof(*toc));
214 gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
215 gph->load_addr = params->addr;
217 if (strncmp(params->imagename, "byteswap", 8) == 0) {
220 uint32_t *data = (uint32_t *)ptr;
222 while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
223 *data = omapimage_swap32(*data);
230 int omapimage_check_params(struct mkimage_params *params)
232 return (params->dflag && (params->fflag || params->lflag)) ||
233 (params->fflag && (params->dflag || params->lflag)) ||
234 (params->lflag && (params->dflag || params->fflag));
238 * omapimage parameters
240 static struct image_type_params omapimage_params = {
241 .name = "TI OMAP CH/GP Boot Image support",
242 .header_size = OMAP_FILE_HDR_SIZE,
243 .hdr = (void *)&omapimage_header,
244 .check_image_type = omapimage_check_image_types,
245 .verify_header = omapimage_verify_header,
246 .print_header = omapimage_print_header,
247 .set_header = omapimage_set_header,
248 .check_params = omapimage_check_params,
251 void init_omap_image_type(void)
253 mkimage_register(&omapimage_params);