blob: 0e75509ee9623505570f10440b6e4880d8057f06 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0+
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering,
#include <common.h>
#include <bootm.h>
#include <command.h>
#include <lmb.h>
#include <linux/compiler.h>
int __weak bootz_setup(ulong image, ulong *start, ulong *end)
/* Please define bootz_setup() for your platform */
puts("Your platform's zImage format isn't supported yet!\n");
return -1;
* zImage booting support
static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[], bootm_headers_t *images)
int ret;
ulong zi_start, zi_end;
ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
images, 1);
/* Setup Linux kernel zImage entry point */
if (!argc) {
images->ep = load_addr;
debug("* kernel: default image load address = 0x%08lx\n",
} else {
images->ep = simple_strtoul(argv[0], NULL, 16);
debug("* kernel: cmdline image address = 0x%08lx\n",
ret = bootz_setup(images->ep, &zi_start, &zi_end);
if (ret != 0)
return 1;
lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
* Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
* have a header that provide this informaiton.
if (bootm_find_images(flag, argc, argv))
return 1;
return 0;
int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
int ret;
/* Consume 'bootz' */
argc--; argv++;
if (bootz_start(cmdtp, flag, argc, argv, &images))
return 1;
* We are doing the BOOTM_STATE_LOADOS state ourselves, so must
* disable interrupts ourselves
images.os.os = IH_OS_LINUX;
ret = do_bootm_states(cmdtp, flag, argc, argv,
&images, 1);
return ret;
static char bootz_help_text[] =
"[addr [initrd[:size]] [fdt]]\n"
" - boot Linux zImage stored in memory\n"
"\tThe argument 'initrd' is optional and specifies the address\n"
"\tof the initrd in memory. The optional argument ':size' allows\n"
"\tspecifying the size of RAW initrd.\n"
#if defined(CONFIG_OF_LIBFDT)
"\tWhen booting a Linux kernel which requires a flat device-tree\n"
"\ta third argument is required which is the address of the\n"
"\tdevice-tree blob. To boot that kernel without an initrd image,\n"
"\tuse a '-' for the second argument. If you do not pass a third\n"
"\ta bd_info struct will be passed instead\n"
bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
"boot Linux zImage image from memory", bootz_help_text