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 DECLARE_GLOBAL_DATA_PTR; 17 18 /* 19 * Board-specific Platform code can reimplement show_boot_progress () if needed 20 */ 21 __weak void show_boot_progress(int val) {} 22 23 static void run_preboot_environment_command(void) 24 { 25 #ifdef CONFIG_PREBOOT 26 char *p; 27 28 p = getenv("preboot"); 29 if (p != NULL) { 30 # ifdef CONFIG_AUTOBOOT_KEYED 31 int prev = disable_ctrlc(1); /* disable Control C checking */ 32 # endif 33 34 run_command_list(p, -1, 0); 35 36 # ifdef CONFIG_AUTOBOOT_KEYED 37 disable_ctrlc(prev); /* restore Control C checking */ 38 # endif 39 } 40 #endif /* CONFIG_PREBOOT */ 41 } 42 43 /* We come here after U-Boot is initialised and ready to process commands */ 44 void main_loop(void) 45 { 46 const char *s; 47 48 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop"); 49 50 #ifdef CONFIG_VERSION_VARIABLE 51 setenv("ver", version_string); /* set version variable */ 52 #endif /* CONFIG_VERSION_VARIABLE */ 53 54 cli_init(); 55 56 run_preboot_environment_command(); 57 58 #if defined(CONFIG_UPDATE_TFTP) 59 update_tftp(0UL, NULL, NULL); 60 #endif /* CONFIG_UPDATE_TFTP */ 61 62 s = bootdelay_process(); 63 if (cli_process_fdt(&s)) 64 cli_secure_boot_cmd(s); 65 66 autoboot_command(s); 67 68 cli_loop(); 69 panic("No CLI available"); 70 } 71