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 # ifdef CONFIG_AUTOBOOT_KEYED 28 int prev = disable_ctrlc(1); /* disable Control C checking */ 29 # endif 30 31 run_command_list(p, -1, 0); 32 33 # ifdef CONFIG_AUTOBOOT_KEYED 34 disable_ctrlc(prev); /* restore Control C checking */ 35 # endif 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 #ifdef CONFIG_VERSION_VARIABLE 48 env_set("ver", version_string); /* set version variable */ 49 #endif /* CONFIG_VERSION_VARIABLE */ 50 51 cli_init(); 52 53 run_preboot_environment_command(); 54 55 #if defined(CONFIG_UPDATE_TFTP) 56 update_tftp(0UL, NULL, NULL); 57 #endif /* CONFIG_UPDATE_TFTP */ 58 59 s = bootdelay_process(); 60 if (cli_process_fdt(&s)) 61 cli_secure_boot_cmd(s); 62 63 autoboot_command(s); 64 65 cli_loop(); 66 panic("No CLI available"); 67 } 68