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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2001
4 * Kyle Harris, kharris@nexus-tech.net
5 */
6
7/*
8 * The "source" command allows to define "script images", i. e. files
9 * that contain command sequences that can be executed by the command
10 * interpreter. It returns the exit status of the last command
11 * executed from the script. This is very similar to running a shell
12 * script in a UNIX shell, hence the name for the command.
13 */
14
15/* #define DEBUG */
16
17#include <command.h>
18#include <env.h>
19#include <image.h>
20#include <log.h>
21#include <malloc.h>
22#include <mapmem.h>
23#include <asm/byteorder.h>
24#include <asm/io.h>
25
26static int do_source(struct cmd_tbl *cmdtp, int flag, int argc,
27 char *const argv[])
28{
29 ulong addr;
30 int rcode;
31 const char *fit_uname = NULL, *confname = NULL;
32
33 /* Find script image */
34 if (argc < 2) {
35 addr = CONFIG_SYS_LOAD_ADDR;
36 debug("* source: default load address = 0x%08lx\n", addr);
37#if defined(CONFIG_FIT)
38 } else if (fit_parse_subimage(argv[1], image_load_addr, &addr,
39 &fit_uname)) {
40 debug("* source: subimage '%s' from FIT image at 0x%08lx\n",
41 fit_uname, addr);
42 } else if (fit_parse_conf(argv[1], image_load_addr, &addr, &confname)) {
43 debug("* source: config '%s' from FIT image at 0x%08lx\n",
44 confname, addr);
45#endif
46 } else {
47 addr = hextoul(argv[1], NULL);
48 debug("* source: cmdline image address = 0x%08lx\n", addr);
49 }
50
51 printf ("## Executing script at %08lx\n", addr);
52 rcode = cmd_source_script(addr, fit_uname, confname);
53 return rcode;
54}
55
56U_BOOT_LONGHELP(source,
57#if defined(CONFIG_FIT)
58 "[<addr>][:[<image>]|#[<config>]]\n"
59 "\t- Run script starting at addr\n"
60 "\t- A FIT config name or subimage name may be specified with : or #\n"
61 "\t (like bootm). If the image or config name is omitted, the\n"
62 "\t default is used."
63#else
64 "[<addr>]\n"
65 "\t- Run script starting at addr"
66#endif
67 );
68
69U_BOOT_CMD(
70 source, 2, 0, do_source,
71 "run script from memory", source_help_text
72);