]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_source.c
3 * Kyle Harris, kharris@nexus-tech.net
5 * SPDX-License-Identifier: GPL-2.0+
9 * The "source" command allows to define "script images", i. e. files
10 * that contain command sequences that can be executed by the command
11 * interpreter. It returns the exit status of the last command
12 * executed from the script. This is very similar to running a shell
13 * script in a UNIX shell, hence the name for the command.
22 #include <asm/byteorder.h>
24 #if defined(CONFIG_8xx)
29 source (ulong addr
, const char *fit_uname
)
32 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
33 const image_header_t
*hdr
;
38 #if defined(CONFIG_FIT)
45 verify
= getenv_yesno ("verify");
47 buf
= map_sysmem(addr
, 0);
48 switch (genimg_get_format(buf
)) {
49 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
50 case IMAGE_FORMAT_LEGACY
:
53 if (!image_check_magic (hdr
)) {
54 puts ("Bad magic number\n");
58 if (!image_check_hcrc (hdr
)) {
59 puts ("Bad header crc\n");
64 if (!image_check_dcrc (hdr
)) {
65 puts ("Bad data crc\n");
70 if (!image_check_type (hdr
, IH_TYPE_SCRIPT
)) {
71 puts ("Bad image type\n");
75 /* get length of script */
76 data
= (ulong
*)image_get_data (hdr
);
78 if ((len
= uimage_to_cpu (*data
)) == 0) {
79 puts ("Empty Script\n");
84 * scripts are just multi-image files with one component, seek
85 * past the zero-terminated sequence of image lengths to get
86 * to the actual image data
91 #if defined(CONFIG_FIT)
92 case IMAGE_FORMAT_FIT
:
93 if (fit_uname
== NULL
) {
94 puts ("No FIT subimage unit name\n");
99 if (!fit_check_format (fit_hdr
)) {
100 puts ("Bad FIT image format\n");
104 /* get script component image node offset */
105 noffset
= fit_image_get_node (fit_hdr
, fit_uname
);
107 printf ("Can't find '%s' FIT subimage\n", fit_uname
);
111 if (!fit_image_check_type (fit_hdr
, noffset
, IH_TYPE_SCRIPT
)) {
112 puts ("Not a image image\n");
116 /* verify integrity */
118 if (!fit_image_verify(fit_hdr
, noffset
)) {
119 puts ("Bad Data Hash\n");
124 /* get script subimage data address and length */
125 if (fit_image_get_data (fit_hdr
, noffset
, &fit_data
, &fit_len
)) {
126 puts ("Could not find script subimage data\n");
130 data
= (ulong
*)fit_data
;
131 len
= (ulong
)fit_len
;
135 puts ("Wrong image format for \"source\" command\n");
139 debug ("** Script length: %ld\n", len
);
140 return run_command_list((char *)data
, len
, 0);
143 /**************************************************/
144 #if defined(CONFIG_CMD_SOURCE)
145 static int do_source(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
149 const char *fit_uname
= NULL
;
151 /* Find script image */
153 addr
= CONFIG_SYS_LOAD_ADDR
;
154 debug ("* source: default load address = 0x%08lx\n", addr
);
155 #if defined(CONFIG_FIT)
156 } else if (fit_parse_subimage (argv
[1], load_addr
, &addr
, &fit_uname
)) {
157 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
161 addr
= simple_strtoul(argv
[1], NULL
, 16);
162 debug ("* source: cmdline image address = 0x%08lx\n", addr
);
165 printf ("## Executing script at %08lx\n", addr
);
166 rcode
= source (addr
, fit_uname
);
170 #ifdef CONFIG_SYS_LONGHELP
171 static char source_help_text
[] =
173 "\t- run script starting at addr\n"
174 "\t- A valid image header must be present"
175 #if defined(CONFIG_FIT)
177 "For FIT format uImage addr must include subimage\n"
178 "unit name in the form of addr:<subimg_uname>"
184 source
, 2, 0, do_source
,
185 "run script from memory", source_help_text