3 * Kyle Harris, kharris@nexus-tech.net
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * The "source" command allows to define "script images", i. e. files
26 * that contain command sequences that can be executed by the command
27 * interpreter. It returns the exit status of the last command
28 * executed from the script. This is very similar to running a shell
29 * script in a UNIX shell, hence the name for the command.
38 #include <asm/byteorder.h>
39 #if defined(CONFIG_8xx)
44 source (ulong addr, const char *fit_uname)
50 #if defined(CONFIG_FIT)
57 verify = getenv_yesno ("verify");
59 switch (genimg_get_format ((void *)addr)) {
60 case IMAGE_FORMAT_LEGACY:
61 hdr = (image_header_t *)addr;
63 if (!image_check_magic (hdr)) {
64 puts ("Bad magic number\n");
68 if (!image_check_hcrc (hdr)) {
69 puts ("Bad header crc\n");
74 if (!image_check_dcrc (hdr)) {
75 puts ("Bad data crc\n");
80 if (!image_check_type (hdr, IH_TYPE_SCRIPT)) {
81 puts ("Bad image type\n");
85 /* get length of script */
86 data = (ulong *)image_get_data (hdr);
88 if ((len = uimage_to_cpu (*data)) == 0) {
89 puts ("Empty Script\n");
94 * scripts are just multi-image files with one component, seek
95 * past the zero-terminated sequence of image lengths to get
96 * to the actual image data
100 #if defined(CONFIG_FIT)
101 case IMAGE_FORMAT_FIT:
102 if (fit_uname == NULL) {
103 puts ("No FIT subimage unit name\n");
107 fit_hdr = (const void *)addr;
108 if (!fit_check_format (fit_hdr)) {
109 puts ("Bad FIT image format\n");
113 /* get script component image node offset */
114 noffset = fit_image_get_node (fit_hdr, fit_uname);
116 printf ("Can't find '%s' FIT subimage\n", fit_uname);
120 if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) {
121 puts ("Not a image image\n");
125 /* verify integrity */
127 if (!fit_image_check_hashes (fit_hdr, noffset)) {
128 puts ("Bad Data Hash\n");
133 /* get script subimage data address and length */
134 if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) {
135 puts ("Could not find script subimage data\n");
139 data = (ulong *)fit_data;
140 len = (ulong)fit_len;
144 puts ("Wrong image format for \"source\" command\n");
148 debug ("** Script length: %ld\n", len);
149 return run_command_list((char *)data, len, 0);
152 /**************************************************/
153 #if defined(CONFIG_CMD_SOURCE)
155 do_source (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
159 const char *fit_uname = NULL;
161 /* Find script image */
163 addr = CONFIG_SYS_LOAD_ADDR;
164 debug ("* source: default load address = 0x%08lx\n", addr);
165 #if defined(CONFIG_FIT)
166 } else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) {
167 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
171 addr = simple_strtoul(argv[1], NULL, 16);
172 debug ("* source: cmdline image address = 0x%08lx\n", addr);
175 printf ("## Executing script at %08lx\n", addr);
176 rcode = source (addr, fit_uname);
180 #ifdef CONFIG_SYS_LONGHELP
181 static char source_help_text[] =
183 "\t- run script starting at addr\n"
184 "\t- A valid image header must be present"
185 #if defined(CONFIG_FIT)
187 "For FIT format uImage addr must include subimage\n"
188 "unit name in the form of addr:<subimg_uname>"
194 source, 2, 0, do_source,
195 "run script from memory", source_help_text