1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2009
14 #include <linux/compiler.h>
16 int __weak bootz_setup(ulong image, ulong *start, ulong *end)
18 /* Please define bootz_setup() for your platform */
20 puts("Your platform's zImage format isn't supported yet!\n");
25 * zImage booting support
27 static int bootz_start(struct cmd_tbl *cmdtp, int flag, int argc,
28 char *const argv[], struct bootm_headers *images)
30 ulong zi_start, zi_end;
31 struct bootm_info bmi;
36 bmi.addr_img = argv[0];
38 bmi.conf_ramdisk = argv[1];
40 bmi.conf_fdt = argv[2];
41 /* do not set up argc and argv[] since nothing uses them */
43 ret = bootm_run_states(&bmi, BOOTM_STATE_START);
45 /* Setup Linux kernel zImage entry point */
47 images->ep = image_load_addr;
48 debug("* kernel: default image load address = 0x%08lx\n",
51 images->ep = hextoul(argv[0], NULL);
52 debug("* kernel: cmdline image address = 0x%08lx\n",
56 ret = bootz_setup(images->ep, &zi_start, &zi_end);
60 lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
63 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
64 * have a header that provide this informaiton.
66 if (bootm_find_images(image_load_addr, cmd_arg1(argc, argv),
67 cmd_arg2(argc, argv), images->ep,
74 int do_bootz(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
76 struct bootm_info bmi;
82 if (bootz_start(cmdtp, flag, argc, argv, &images))
86 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
87 * disable interrupts ourselves
89 bootm_disable_interrupts();
91 images.os.os = IH_OS_LINUX;
95 bmi.addr_img = argv[0];
97 bmi.conf_ramdisk = argv[1];
99 bmi.conf_fdt = argv[2];
100 bmi.cmd_name = "bootz";
102 ret = bootz_run(&bmi);
107 U_BOOT_LONGHELP(bootz,
108 "[addr [initrd[:size]] [fdt]]\n"
109 " - boot Linux zImage stored in memory\n"
110 "\tThe argument 'initrd' is optional and specifies the address\n"
111 "\tof the initrd in memory. The optional argument ':size' allows\n"
112 "\tspecifying the size of RAW initrd.\n"
113 #if defined(CONFIG_OF_LIBFDT)
114 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
115 "\ta third argument is required which is the address of the\n"
116 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
117 "\tuse a '-' for the second argument. If you do not pass a third\n"
118 "\ta bd_info struct will be passed instead\n"
123 bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
124 "boot Linux zImage image from memory", bootz_help_text