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/*
* (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
/*
* Boot support
*/
#include <common.h>
#include <driver.h>
#include <command.h>
#include <image.h>
#include <malloc.h>
#include <environment.h>
#include <asm/byteorder.h>
#include <xfuncs.h>
#include <getopt.h>
#include <fcntl.h>
#include <fs.h>
#include <errno.h>
#include <boot.h>
#include <of.h>
#include <rtc.h>
#include <init.h>
#include <of.h>
#include <magicvar.h>
#include <uncompress.h>
#include <memory.h>
#include <filetype.h>
#include <binfmt.h>
#include <globalvar.h>
#include <magicvar.h>
#include <asm-generic/memory_layout.h>
#define BOOTM_OPTS_COMMON "ca:e:vo:fd"
#ifdef CONFIG_CMD_BOOTM_INITRD
#define BOOTM_OPTS BOOTM_OPTS_COMMON "L:r:"
#else
#define BOOTM_OPTS BOOTM_OPTS_COMMON
#endif
static int do_bootm(int argc, char *argv[])
{
int opt;
struct bootm_data data = {};
int ret = 1;
const char *oftree = NULL, *initrd_file = NULL, *os_file = NULL;
data.initrd_address = UIMAGE_INVALID_ADDRESS;
data.os_address = UIMAGE_SOME_ADDRESS;
data.verify = 0;
data.verbose = 0;
oftree = getenv("global.bootm.oftree");
os_file = getenv("global.bootm.image");
getenv_ul("global.bootm.image.loadaddr", &data.os_address);
getenv_ul("global.bootm.initrd.loadaddr", &data.initrd_address);
if (IS_ENABLED(CONFIG_CMD_BOOTM_INITRD))
initrd_file = getenv("global.bootm.initrd");
while ((opt = getopt(argc, argv, BOOTM_OPTS)) > 0) {
switch(opt) {
case 'c':
data.verify = 1;
break;
#ifdef CONFIG_CMD_BOOTM_INITRD
case 'L':
data.initrd_address = simple_strtoul(optarg, NULL, 0);
break;
case 'r':
initrd_file = optarg;
break;
#endif
case 'a':
data.os_address = simple_strtoul(optarg, NULL, 0);
break;
case 'e':
data.os_entry = simple_strtoul(optarg, NULL, 0);
break;
case 'v':
data.verbose++;
break;
case 'o':
oftree = optarg;
break;
case 'f':
data.force = 1;
break;
case 'd':
data.dryrun = 1;
break;
default:
break;
}
}
if (optind != argc)
os_file = argv[optind];
if (!os_file || !*os_file) {
printf("no boot image given\n");
goto err_out;
}
if (initrd_file && !*initrd_file)
initrd_file = NULL;
if (oftree && !*oftree)
oftree = NULL;
data.os_file = os_file;
data.oftree_file = oftree;
data.initrd_file = initrd_file;
ret = bootm_boot(&data);
if (ret) {
printf("handler failed with: %s\n", strerror(-ret));
goto err_out;
}
if (data.dryrun)
printf("Dryrun. Aborted\n");
err_out:
return ret ? 1 : 0;
}
BAREBOX_CMD_HELP_START(bootm)
BAREBOX_CMD_HELP_USAGE("bootm [OPTIONS] image\n")
BAREBOX_CMD_HELP_SHORT("Boot an application image.\n")
BAREBOX_CMD_HELP_OPT ("-c", "crc check uImage data\n")
BAREBOX_CMD_HELP_OPT ("-d", "dryrun. Check data, but do not run\n")
#ifdef CONFIG_CMD_BOOTM_INITRD
BAREBOX_CMD_HELP_OPT ("-r <initrd>","specify an initrd image\n")
BAREBOX_CMD_HELP_OPT ("-L <load addr>","specify initrd load address\n")
#endif
BAREBOX_CMD_HELP_OPT ("-a <load addr>","specify os load address\n")
BAREBOX_CMD_HELP_OPT ("-e <ofs>","entry point to the image relative to start (0)\n")
#ifdef CONFIG_OFTREE
BAREBOX_CMD_HELP_OPT ("-o <oftree>","specify oftree\n")
#endif
#ifdef CONFIG_CMD_BOOTM_VERBOSE
BAREBOX_CMD_HELP_OPT ("-v","verbose\n")
#endif
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(bootm)
.cmd = do_bootm,
.usage = "boot an application image",
BAREBOX_CMD_HELP(cmd_bootm_help)
BAREBOX_CMD_END
BAREBOX_MAGICVAR(bootargs, "Linux Kernel parameters");
BAREBOX_MAGICVAR_NAMED(global_bootm_image, global.bootm.image, "bootm default boot image");
BAREBOX_MAGICVAR_NAMED(global_bootm_image_loadaddr, global.bootm.image.loadaddr, "bootm default boot image loadaddr");
BAREBOX_MAGICVAR_NAMED(global_bootm_initrd, global.bootm.initrd, "bootm default initrd");
BAREBOX_MAGICVAR_NAMED(global_bootm_initrd_loadaddr, global.bootm.initrd.loadaddr, "bootm default initrd loadaddr");
static struct binfmt_hook binfmt_uimage_hook = {
.type = filetype_uimage,
.exec = "bootm",
};
static int binfmt_uimage_init(void)
{
return binfmt_register(&binfmt_uimage_hook);
}
fs_initcall(binfmt_uimage_init);
/**
* @file
* @brief Boot support for Linux
*/
/**
* @page boot_preparation Preparing for Boot
*
* This chapter describes what's to be done to forward the control from
* barebox to Linux. This part describes the generic part, below you can find
* the architecture specific part.
*
* - @subpage arm_boot_preparation
* - @subpage ppc_boot_preparation
* - @subpage x86_boot_preparation
*/
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