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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2000-2003
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7/*
8 * Misc boot support
9 */
10#include <command.h>
11#include <net.h>
12#include <vsprintf.h>
13
14#ifdef CONFIG_CMD_GO
15
16/* Allow ports to override the default behavior */
17__attribute__((weak))
18unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
19 char *const argv[])
20{
21 return entry (argc, argv);
22}
23
24static int do_go(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
25{
26 ulong addr, rc;
27 int rcode = 0;
28
29 if (argc < 2)
30 return CMD_RET_USAGE;
31
32 addr = hextoul(argv[1], NULL);
33
34 printf ("## Starting application at 0x%08lX ...\n", addr);
35 flush();
36
37 /*
38 * pass address parameter as argv[0] (aka command name),
39 * and all remaining args
40 */
41 rc = do_go_exec ((void *)addr, argc - 1, argv + 1);
42 if (rc != 0) rcode = 1;
43
44 printf ("## Application terminated, rc = 0x%lX\n", rc);
45 return rcode;
46}
47
48/* -------------------------------------------------------------------- */
49
50U_BOOT_CMD(
51 go, CONFIG_SYS_MAXARGS, 1, do_go,
52 "start application at address 'addr'",
53 "addr [arg ...]\n - start application at address 'addr'\n"
54 " passing 'arg' as arguments"
55);
56
57#endif
58
59U_BOOT_CMD(
60 reset, 2, 0, do_reset,
61 "Perform RESET of the CPU",
62 "- cold boot without level specifier\n"
63 "reset -w - warm reset if implemented"
64);
65
66#ifdef CONFIG_CMD_POWEROFF
67U_BOOT_CMD(
68 poweroff, 1, 0, do_poweroff,
69 "Perform POWEROFF of the device",
70 ""
71);
72#endif