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git.ipfire.org Git - thirdparty/u-boot.git/blob - cmd/bootz.c
1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
11 #include <linux/compiler.h>
13 int __weak
bootz_setup(ulong image
, ulong
*start
, ulong
*end
)
15 /* Please define bootz_setup() for your platform */
17 puts("Your platform's zImage format isn't supported yet!\n");
22 * zImage booting support
24 static int bootz_start(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
25 char * const argv
[], bootm_headers_t
*images
)
28 ulong zi_start
, zi_end
;
30 ret
= do_bootm_states(cmdtp
, flag
, argc
, argv
, BOOTM_STATE_START
,
33 /* Setup Linux kernel zImage entry point */
35 images
->ep
= load_addr
;
36 debug("* kernel: default image load address = 0x%08lx\n",
39 images
->ep
= simple_strtoul(argv
[0], NULL
, 16);
40 debug("* kernel: cmdline image address = 0x%08lx\n",
44 ret
= bootz_setup(images
->ep
, &zi_start
, &zi_end
);
48 lmb_reserve(&images
->lmb
, images
->ep
, zi_end
- zi_start
);
51 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
52 * have a header that provide this informaiton.
54 if (bootm_find_images(flag
, argc
, argv
))
60 int do_bootz(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
67 if (bootz_start(cmdtp
, flag
, argc
, argv
, &images
))
71 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
72 * disable interrupts ourselves
74 bootm_disable_interrupts();
76 images
.os
.os
= IH_OS_LINUX
;
77 ret
= do_bootm_states(cmdtp
, flag
, argc
, argv
,
78 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
81 BOOTM_STATE_OS_PREP
| BOOTM_STATE_OS_FAKE_GO
|
88 #ifdef CONFIG_SYS_LONGHELP
89 static char bootz_help_text
[] =
90 "[addr [initrd[:size]] [fdt]]\n"
91 " - boot Linux zImage stored in memory\n"
92 "\tThe argument 'initrd' is optional and specifies the address\n"
93 "\tof the initrd in memory. The optional argument ':size' allows\n"
94 "\tspecifying the size of RAW initrd.\n"
95 #if defined(CONFIG_OF_LIBFDT)
96 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
97 "\ta third argument is required which is the address of the\n"
98 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
99 "\tuse a '-' for the second argument. If you do not pass a third\n"
100 "\ta bd_info struct will be passed instead\n"
106 bootz
, CONFIG_SYS_MAXARGS
, 1, do_bootz
,
107 "boot Linux zImage image from memory", bootz_help_text