1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
13 #include <linux/compiler.h>
15 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
17 /* Please define bootz_setup() for your platform */
19 puts("Your platform's zImage format isn't supported yet!\n");
24 * zImage booting support
26 static int bootz_start(cmd_tbl_t *cmdtp, int flag, int argc,
27 char * const argv[], bootm_headers_t *images)
30 ulong zi_start, zi_end;
32 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
35 /* Setup Linux kernel zImage entry point */
37 images->ep = image_load_addr;
38 debug("* kernel: default image load address = 0x%08lx\n",
41 images->ep = simple_strtoul(argv[0], NULL, 16);
42 debug("* kernel: cmdline image address = 0x%08lx\n",
46 ret = bootz_setup(images->ep, &zi_start, &zi_end);
50 lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
53 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
54 * have a header that provide this informaiton.
56 if (bootm_find_images(flag, argc, argv))
62 int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
69 if (bootz_start(cmdtp, flag, argc, argv, &images))
73 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
74 * disable interrupts ourselves
76 bootm_disable_interrupts();
78 images.os.os = IH_OS_LINUX;
79 ret = do_bootm_states(cmdtp, flag, argc, argv,
80 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
83 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
90 #ifdef CONFIG_SYS_LONGHELP
91 static char bootz_help_text[] =
92 "[addr [initrd[:size]] [fdt]]\n"
93 " - boot Linux zImage stored in memory\n"
94 "\tThe argument 'initrd' is optional and specifies the address\n"
95 "\tof the initrd in memory. The optional argument ':size' allows\n"
96 "\tspecifying the size of RAW initrd.\n"
97 #if defined(CONFIG_OF_LIBFDT)
98 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
99 "\ta third argument is required which is the address of the\n"
100 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
101 "\tuse a '-' for the second argument. If you do not pass a third\n"
102 "\ta bd_info struct will be passed instead\n"
108 bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
109 "boot Linux zImage image from memory", bootz_help_text