1 /* 2 * (C) Copyright 2000 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 /* #define DEBUG */ 9 10 #include <common.h> 11 #include <autoboot.h> 12 #include <cli.h> 13 #include <console.h> 14 #include <version.h> 15 16 /* 17 * Board-specific Platform code can reimplement show_boot_progress () if needed 18 */ 19 __weak void show_boot_progress(int val) {} 20 21 static void run_preboot_environment_command(void) 22 { 23 #ifdef CONFIG_PREBOOT 24 char *p; 25 26 p = env_get("preboot"); 27 if (p != NULL) { 28 # ifdef CONFIG_AUTOBOOT_KEYED 29 int prev = disable_ctrlc(1); /* disable Control C checking */ 30 # endif 31 32 run_command_list(p, -1, 0); 33 34 # ifdef CONFIG_AUTOBOOT_KEYED 35 disable_ctrlc(prev); /* restore Control C checking */ 36 # endif 37 } 38 #endif /* CONFIG_PREBOOT */ 39 } 40 41 /* We come here after U-Boot is initialised and ready to process commands */ 42 void main_loop(void) 43 { 44 const char *s; 45 46 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop"); 47 48 #ifdef CONFIG_VERSION_VARIABLE 49 env_set("ver", version_string); /* set version variable */ 50 #endif /* CONFIG_VERSION_VARIABLE */ 51 52 cli_init(); 53 54 run_preboot_environment_command(); 55 56 #if defined(CONFIG_UPDATE_TFTP) 57 update_tftp(0UL, NULL, NULL); 58 #endif /* CONFIG_UPDATE_TFTP */ 59 60 s = bootdelay_process(); 61 if (cli_process_fdt(&s)) 62 cli_secure_boot_cmd(s); 63 64 autoboot_command(s); 65 66 cli_loop(); 67 panic("No CLI available"); 68 } 69