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.
23 #include <asm/byteorder.h>
25 #if defined(CONFIG_8xx)
30 source (ulong addr, const char *fit_uname)
33 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
34 const image_header_t *hdr;
39 #if defined(CONFIG_FIT)
46 verify = getenv_yesno ("verify");
48 buf = map_sysmem(addr, 0);
49 switch (genimg_get_format(buf)) {
50 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
51 case IMAGE_FORMAT_LEGACY:
54 if (!image_check_magic (hdr)) {
55 puts ("Bad magic number\n");
59 if (!image_check_hcrc (hdr)) {
60 puts ("Bad header crc\n");
65 if (!image_check_dcrc (hdr)) {
66 puts ("Bad data crc\n");
71 if (!image_check_type (hdr, IH_TYPE_SCRIPT)) {
72 puts ("Bad image type\n");
76 /* get length of script */
77 data = (ulong *)image_get_data (hdr);
79 if ((len = uimage_to_cpu (*data)) == 0) {
80 puts ("Empty Script\n");
85 * scripts are just multi-image files with one component, seek
86 * past the zero-terminated sequence of image lengths to get
87 * to the actual image data
92 #if defined(CONFIG_FIT)
93 case IMAGE_FORMAT_FIT:
94 if (fit_uname == NULL) {
95 puts ("No FIT subimage unit name\n");
100 if (!fit_check_format (fit_hdr)) {
101 puts ("Bad FIT image format\n");
105 /* get script component image node offset */
106 noffset = fit_image_get_node (fit_hdr, fit_uname);
108 printf ("Can't find '%s' FIT subimage\n", fit_uname);
112 if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) {
113 puts ("Not a image image\n");
117 /* verify integrity */
119 if (!fit_image_verify(fit_hdr, noffset)) {
120 puts ("Bad Data Hash\n");
125 /* get script subimage data address and length */
126 if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) {
127 puts ("Could not find script subimage data\n");
131 data = (ulong *)fit_data;
132 len = (ulong)fit_len;
136 puts ("Wrong image format for \"source\" command\n");
140 debug ("** Script length: %ld\n", len);
141 return run_command_list((char *)data, len, 0);
144 /**************************************************/
145 #if defined(CONFIG_CMD_SOURCE)
146 static int do_source(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
150 const char *fit_uname = NULL;
152 /* Find script image */
154 addr = CONFIG_SYS_LOAD_ADDR;
155 debug ("* source: default load address = 0x%08lx\n", addr);
156 #if defined(CONFIG_FIT)
157 } else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) {
158 debug ("* source: subimage '%s' from FIT image at 0x%08lx\n",
162 addr = simple_strtoul(argv[1], NULL, 16);
163 debug ("* source: cmdline image address = 0x%08lx\n", addr);
166 printf ("## Executing script at %08lx\n", addr);
167 rcode = source (addr, fit_uname);
171 #ifdef CONFIG_SYS_LONGHELP
172 static char source_help_text[] =
174 "\t- run script starting at addr\n"
175 "\t- A valid image header must be present"
176 #if defined(CONFIG_FIT)
178 "For FIT format uImage addr must include subimage\n"
179 "unit name in the form of addr:<subimg_uname>"
185 source, 2, 0, do_source,
186 "run script from memory", source_help_text