1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
13 #include <linux/kernel.h>
14 #include <linux/sizes.h>
17 * Image booting support
19 static int booti_start(cmd_tbl_t
*cmdtp
, int flag
, int argc
,
20 char * const argv
[], bootm_headers_t
*images
)
27 ret
= do_bootm_states(cmdtp
, flag
, argc
, argv
, BOOTM_STATE_START
,
30 /* Setup Linux kernel Image entry point */
33 debug("* kernel: default image load address = 0x%08lx\n",
36 ld
= simple_strtoul(argv
[0], NULL
, 16);
37 debug("* kernel: cmdline image address = 0x%08lx\n", ld
);
40 ret
= booti_setup(ld
, &relocated_addr
, &image_size
, false);
44 /* Handle BOOTM_STATE_LOADOS */
45 if (relocated_addr
!= ld
) {
46 debug("Moving Image from 0x%lx to 0x%lx\n", ld
, relocated_addr
);
47 memmove((void *)relocated_addr
, (void *)ld
, image_size
);
50 images
->ep
= relocated_addr
;
51 lmb_reserve(&images
->lmb
, images
->ep
, le32_to_cpu(image_size
));
54 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
55 * have a header that provide this informaiton.
57 if (bootm_find_images(flag
, argc
, argv
))
63 int do_booti(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
70 if (booti_start(cmdtp
, flag
, argc
, argv
, &images
))
74 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
75 * disable interrupts ourselves
77 bootm_disable_interrupts();
79 images
.os
.os
= IH_OS_LINUX
;
80 #ifdef CONFIG_RISCV_SMODE
81 images
.os
.arch
= IH_ARCH_RISCV
;
83 images
.os
.arch
= IH_ARCH_ARM64
;
85 ret
= do_bootm_states(cmdtp
, flag
, argc
, argv
,
86 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
89 BOOTM_STATE_OS_PREP
| BOOTM_STATE_OS_FAKE_GO
|
96 #ifdef CONFIG_SYS_LONGHELP
97 static char booti_help_text
[] =
98 "[addr [initrd[:size]] [fdt]]\n"
99 " - boot Linux 'Image' stored at 'addr'\n"
100 "\tThe argument 'initrd' is optional and specifies the address\n"
101 "\tof an initrd in memory. The optional parameter ':size' allows\n"
102 "\tspecifying the size of a RAW initrd.\n"
103 #if defined(CONFIG_OF_LIBFDT)
104 "\tSince booting a Linux kernel requires a flat device-tree, a\n"
105 "\tthird argument providing the address of the device-tree blob\n"
106 "\tis required. To boot a kernel with a device-tree blob but\n"
107 "\twithout an initrd image, use a '-' for the initrd argument.\n"
113 booti
, CONFIG_SYS_MAXARGS
, 1, do_booti
,
114 "boot Linux kernel 'Image' format from memory", booti_help_text