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 } 66