doc: rockchip: Adapt Pine64 Rock64 board instructions
[oweals/u-boot.git] / common / main.c
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 <common.h>
10 #include <autoboot.h>
11 #include <cli.h>
12 #include <console.h>
13 #include <version.h>
14
15 /*
16  * Board-specific Platform code can reimplement show_boot_progress () if needed
17  */
18 __weak void show_boot_progress(int val) {}
19
20 static void run_preboot_environment_command(void)
21 {
22 #ifdef CONFIG_PREBOOT
23         char *p;
24
25         p = env_get("preboot");
26         if (p != NULL) {
27                 int prev = 0;
28
29                 if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
30                         prev = disable_ctrlc(1); /* disable Ctrl-C checking */
31
32                 run_command_list(p, -1, 0);
33
34                 if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
35                         disable_ctrlc(prev);    /* restore Ctrl-C checking */
36         }
37 #endif /* CONFIG_PREBOOT */
38 }
39
40 /* We come here after U-Boot is initialised and ready to process commands */
41 void main_loop(void)
42 {
43         const char *s;
44
45         bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
46
47         if (IS_ENABLED(CONFIG_VERSION_VARIABLE))
48                 env_set("ver", version_string);  /* set version variable */
49
50         cli_init();
51
52         run_preboot_environment_command();
53
54         if (IS_ENABLED(CONFIG_UPDATE_TFTP))
55                 update_tftp(0UL, NULL, NULL);
56
57         s = bootdelay_process();
58         if (cli_process_fdt(&s))
59                 cli_secure_boot_cmd(s);
60
61         autoboot_command(s);
62
63         cli_loop();
64         panic("No CLI available");
65 }