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git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_source.c
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>
40 #if defined(CONFIG_8xx)
45 source (ulong addr
, const char *fit_uname
)
48 const image_header_t
*hdr
;
52 #if defined(CONFIG_FIT)
59 verify
= getenv_yesno ("verify");
61 buf
= map_sysmem(addr
, 0);
62 switch (genimg_get_format(buf
)) {
63 case IMAGE_FORMAT_LEGACY
:
66 if (!image_check_magic (hdr
)) {
67 puts ("Bad magic number\n");
71 if (!image_check_hcrc (hdr
)) {
72 puts ("Bad header crc\n");
77 if (!image_check_dcrc (hdr
)) {
78 puts ("Bad data crc\n");
83 if (!image_check_type (hdr
, IH_TYPE_SCRIPT
)) {
84 puts ("Bad image type\n");
88 /* get length of script */
89 data
= (ulong
*)image_get_data (hdr
);
91 if ((len
= uimage_to_cpu (*data
)) == 0) {
92 puts ("Empty Script\n");
97 * scripts are just multi-image files with one component, seek
98 * past the zero-terminated sequence of image lengths to get
99 * to the actual image data
103 #if defined(CONFIG_FIT)
104 case IMAGE_FORMAT_FIT
:
105 if (fit_uname
== NULL
) {
106 puts ("No FIT subimage unit name\n");
111 if (!fit_check_format (fit_hdr
)) {
112 puts ("Bad FIT image format\n");
116 /* get script component image node offset */
117 noffset
= fit_image_get_node (fit_hdr
, fit_uname
);
119 printf ("Can't find '%s' FIT subimage\n", fit_uname
);
123 if (!fit_image_check_type (fit_hdr
, noffset
, IH_TYPE_SCRIPT
)) {
124 puts ("Not a image image\n");
128 /* verify integrity */
130 if (!fit_image_verify(fit_hdr
, noffset
)) {
131 puts ("Bad Data Hash\n");
136 /* get script subimage data address and length */
137 if (fit_image_get_data (fit_hdr
, noffset
, &fit_data
, &fit_len
)) {
138 puts ("Could not find script subimage data\n");
142 data
= (ulong
*)fit_data
;
143 len
= (ulong
)fit_len
;
147 puts ("Wrong image format for \"source\" command\n");
151 debug ("** Script length: %ld\n", len
);
152 return run_command_list((char *)data
, len
, 0);
155 /**************************************************/
156 #if defined(CONFIG_CMD_SOURCE)
158 do_source (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
162 const char *fit_uname
= NULL
;
164 /* Find script image */
166 addr
= CONFIG_SYS_LOAD_ADDR
;
167 debug ("* source: default load address = 0x%08lx\n", addr
);
168 #if defined(CONFIG_FIT)
169 } else if (fit_parse_subimage (argv
[1], load_addr
, &addr
, &fit_uname
)) {
170 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
174 addr
= simple_strtoul(argv
[1], NULL
, 16);
175 debug ("* source: cmdline image address = 0x%08lx\n", addr
);
178 printf ("## Executing script at %08lx\n", addr
);
179 rcode
= source (addr
, fit_uname
);
183 #ifdef CONFIG_SYS_LONGHELP
184 static char source_help_text
[] =
186 "\t- run script starting at addr\n"
187 "\t- A valid image header must be present"
188 #if defined(CONFIG_FIT)
190 "For FIT format uImage addr must include subimage\n"
191 "unit name in the form of addr:<subimg_uname>"
197 source
, 2, 0, do_source
,
198 "run script from memory", source_help_text