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a57ad20d07
In the next commit, CONFIG_EFI_SETUP_EARLY will become mandated in order to support dynamic enumeration of efi_disk objects. This can, however, be problematic particularly in case of file-based variable storage (efi_variable.c, default). Non-volatile variables are to be restored from EFI system partition by efi_init_variables() in efi_init_obj_list(). When efi_init_obj_list() is called in board_init_r(), we don't know yet what disk devices we have since none of device probing commands (say, scsi rescan) has not been executed at that stage. So in this commit, a preparatory change is made; efi_init_obj_list() is broken into the two functions; * efi_init_early(), and * new efi_init_obj_list() Only efi_init_early() will be called in board_init_r(), which allows us to execute any of device probing commands, either though "preboot" variable or normal command line, before calling efi_init_obj_list() which is to be invoked at the first execution of an efi-related command (or at efi_launch_capsules()) as used to be. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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/* #define DEBUG */
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#include <common.h>
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#include <autoboot.h>
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#include <bootstage.h>
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#include <cli.h>
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#include <command.h>
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#include <console.h>
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#include <env.h>
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#include <init.h>
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#include <net.h>
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#include <version_string.h>
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#include <efi_loader.h>
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static void run_preboot_environment_command(void)
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{
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char *p;
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p = env_get("preboot");
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if (p != NULL) {
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int prev = 0;
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if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
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prev = disable_ctrlc(1); /* disable Ctrl-C checking */
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run_command_list(p, -1, 0);
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if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
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disable_ctrlc(prev); /* restore Ctrl-C checking */
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}
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}
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/* We come here after U-Boot is initialised and ready to process commands */
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void main_loop(void)
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{
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const char *s;
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bootstage_mark_name(BOOTSTAGE_ID_MAIN_LOOP, "main_loop");
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if (IS_ENABLED(CONFIG_VERSION_VARIABLE))
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env_set("ver", version_string); /* set version variable */
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cli_init();
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if (IS_ENABLED(CONFIG_USE_PREBOOT))
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run_preboot_environment_command();
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if (IS_ENABLED(CONFIG_UPDATE_TFTP))
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update_tftp(0UL, NULL, NULL);
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if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK_EARLY)) {
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/* efi_init_early() already called */
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if (efi_init_obj_list() == EFI_SUCCESS)
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efi_launch_capsules();
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}
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s = bootdelay_process();
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if (cli_process_fdt(&s))
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cli_secure_boot_cmd(s);
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autoboot_command(s);
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cli_loop();
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panic("No CLI available");
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}
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