1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2000
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 /* #define DEBUG */
8
9 #include <autoboot.h>
10 #include <button.h>
11 #include <bootstage.h>
12 #include <bootstd.h>
13 #include <cli.h>
14 #include <command.h>
15 #include <console.h>
16 #include <env.h>
17 #include <fdtdec.h>
18 #include <init.h>
19 #include <net.h>
20 #include <version_string.h>
21 #include <efi_loader.h>
22
run_preboot_environment_command(void)23 static void run_preboot_environment_command(void)
24 {
25 char *p;
26
27 p = env_get("preboot");
28 if (p != NULL) {
29 int prev = 0;
30
31 if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
32 prev = disable_ctrlc(1); /* disable Ctrl-C checking */
33
34 run_command_list(p, -1, 0);
35
36 if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
37 disable_ctrlc(prev); /* restore Ctrl-C checking */
38 }
39 }
40
41 /* We come here after U-Boot is initialised and ready to process commands */
main_loop(void)42 void main_loop(void)
43 {
44 const char *s;
45
46 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
47
48 if (IS_ENABLED(CONFIG_VERSION_VARIABLE))
49 env_set("ver", version_string); /* set version variable */
50
51 cli_init();
52
53 if (IS_ENABLED(CONFIG_USE_PREBOOT))
54 run_preboot_environment_command();
55
56 if (IS_ENABLED(CONFIG_UPDATE_TFTP))
57 update_tftp(0UL, NULL, NULL);
58
59 if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK_EARLY)) {
60 /* efi_init_early() already called */
61 if (efi_init_obj_list() == EFI_SUCCESS)
62 efi_launch_capsules();
63 }
64
65 process_button_cmds();
66
67 s = bootdelay_process();
68 if (cli_process_fdt(&s))
69 cli_secure_boot_cmd(s);
70
71 autoboot_command(s);
72
73 /* if standard boot if enabled, assume that it will be able to boot */
74 if (IS_ENABLED(CONFIG_BOOTSTD_PROG)) {
75 int ret;
76
77 ret = bootstd_prog_boot();
78 printf("Standard boot failed (err=%dE)\n", ret);
79 panic("Failed to boot");
80 }
81
82 cli_loop();
83
84 panic("No CLI available");
85 }
86