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 /* 24 * Board-specific Platform code can reimplement autoboot_command_fail_handle () 25 * if needed 26 */ 27 __weak void autoboot_command_fail_handle(void) {} 28 29 static void run_preboot_environment_command(void) 30 { 31 #ifdef CONFIG_PREBOOT 32 char *p; 33 34 p = env_get("preboot"); 35 if (p != NULL) { 36 # ifdef CONFIG_AUTOBOOT_KEYED 37 int prev = disable_ctrlc(1); /* disable Control C checking */ 38 # endif 39 40 run_command_list(p, -1, 0); 41 42 # ifdef CONFIG_AUTOBOOT_KEYED 43 disable_ctrlc(prev); /* restore Control C checking */ 44 # endif 45 } 46 #endif /* CONFIG_PREBOOT */ 47 } 48 49 /* We come here after U-Boot is initialised and ready to process commands */ 50 void main_loop(void) 51 { 52 const char *s; 53 54 bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop"); 55 56 #ifdef CONFIG_VERSION_VARIABLE 57 env_set("ver", version_string); /* set version variable */ 58 #endif /* CONFIG_VERSION_VARIABLE */ 59 60 cli_init(); 61 62 run_preboot_environment_command(); 63 64 #if defined(CONFIG_UPDATE_TFTP) 65 update_tftp(0UL, NULL, NULL); 66 #endif /* CONFIG_UPDATE_TFTP */ 67 68 s = bootdelay_process(); 69 if (cli_process_fdt(&s)) 70 cli_secure_boot_cmd(s); 71 72 autoboot_command(s); 73 autoboot_command_fail_handle(); 74 75 cli_loop(); 76 panic("No CLI available"); 77 } 78