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Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Tom Rini5db28902016-08-12 08:31:15 -04002/*
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
Tom Rini5db28902016-08-12 08:31:15 -04005 */
6
7#include <common.h>
8#include <bootm.h>
9#include <command.h>
Simon Glass8e8ccfe2019-12-28 10:45:03 -070010#include <image.h>
Simon Glass36bf4462019-11-14 12:57:42 -070011#include <irq_func.h>
Tom Rini5db28902016-08-12 08:31:15 -040012#include <lmb.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060013#include <log.h>
Tom Rini5db28902016-08-12 08:31:15 -040014#include <linux/compiler.h>
15
16int __weak bootz_setup(ulong image, ulong *start, ulong *end)
17{
18 /* Please define bootz_setup() for your platform */
19
20 puts("Your platform's zImage format isn't supported yet!\n");
21 return -1;
22}
23
24/*
25 * zImage booting support
26 */
Simon Glass09140112020-05-10 11:40:03 -060027static int bootz_start(struct cmd_tbl *cmdtp, int flag, int argc,
Simon Glassd9d7c202022-09-06 20:26:50 -060028 char *const argv[], struct bootm_headers *images)
Tom Rini5db28902016-08-12 08:31:15 -040029{
Tom Rini5db28902016-08-12 08:31:15 -040030 ulong zi_start, zi_end;
Simon Glassa6c49162023-12-15 20:14:18 -070031 struct bootm_info bmi;
32 int ret;
Tom Rini5db28902016-08-12 08:31:15 -040033
Simon Glassa6c49162023-12-15 20:14:18 -070034 bootm_init(&bmi);
35 if (argc)
36 bmi.addr_img = argv[0];
37 if (argc > 1)
38 bmi.conf_ramdisk = argv[1];
39 if (argc > 2)
40 bmi.conf_fdt = argv[2];
41 /* do not set up argc and argv[] since nothing uses them */
42
Simon Glassb5d397f2023-12-15 20:14:19 -070043 ret = bootm_run_states(&bmi, BOOTM_STATE_START);
Tom Rini5db28902016-08-12 08:31:15 -040044
45 /* Setup Linux kernel zImage entry point */
46 if (!argc) {
Simon Glassbb872dd2019-12-28 10:45:02 -070047 images->ep = image_load_addr;
Tom Rini5db28902016-08-12 08:31:15 -040048 debug("* kernel: default image load address = 0x%08lx\n",
Simon Glassbb872dd2019-12-28 10:45:02 -070049 image_load_addr);
Tom Rini5db28902016-08-12 08:31:15 -040050 } else {
Simon Glass7e5f4602021-07-24 09:03:29 -060051 images->ep = hextoul(argv[0], NULL);
Tom Rini5db28902016-08-12 08:31:15 -040052 debug("* kernel: cmdline image address = 0x%08lx\n",
53 images->ep);
54 }
55
56 ret = bootz_setup(images->ep, &zi_start, &zi_end);
57 if (ret != 0)
58 return 1;
59
60 lmb_reserve(&images->lmb, images->ep, zi_end - zi_start);
61
62 /*
63 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
64 * have a header that provide this informaiton.
65 */
Simon Glass8632b362023-11-18 14:05:20 -070066 if (bootm_find_images(image_load_addr, cmd_arg1(argc, argv),
67 cmd_arg2(argc, argv), images->ep,
Simon Glass3ac85bd2023-11-18 14:05:16 -070068 zi_end - zi_start))
Tom Rini5db28902016-08-12 08:31:15 -040069 return 1;
70
71 return 0;
72}
73
Simon Glass09140112020-05-10 11:40:03 -060074int do_bootz(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
Tom Rini5db28902016-08-12 08:31:15 -040075{
Simon Glassa6c49162023-12-15 20:14:18 -070076 struct bootm_info bmi;
Simon Glass3405c9b2023-12-15 20:14:23 -070077 int ret;
Tom Rini5db28902016-08-12 08:31:15 -040078
79 /* Consume 'bootz' */
80 argc--; argv++;
81
82 if (bootz_start(cmdtp, flag, argc, argv, &images))
83 return 1;
84
85 /*
86 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
87 * disable interrupts ourselves
88 */
89 bootm_disable_interrupts();
90
91 images.os.os = IH_OS_LINUX;
Simon Glass31fda962023-12-15 20:14:17 -070092
Simon Glassa6c49162023-12-15 20:14:18 -070093 bootm_init(&bmi);
94 if (argc)
95 bmi.addr_img = argv[0];
96 if (argc > 1)
97 bmi.conf_ramdisk = argv[1];
98 if (argc > 2)
99 bmi.conf_fdt = argv[2];
100 bmi.cmd_name = "bootz";
101
Simon Glass3405c9b2023-12-15 20:14:23 -0700102 ret = bootz_run(&bmi);
Tom Rini5db28902016-08-12 08:31:15 -0400103
104 return ret;
105}
106
Tom Rini36162182023-10-07 15:13:08 -0400107U_BOOT_LONGHELP(bootz,
Tom Rini5db28902016-08-12 08:31:15 -0400108 "[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"
119#endif
Tom Rini36162182023-10-07 15:13:08 -0400120 );
Tom Rini5db28902016-08-12 08:31:15 -0400121
122U_BOOT_CMD(
123 bootz, CONFIG_SYS_MAXARGS, 1, do_bootz,
124 "boot Linux zImage image from memory", bootz_help_text
125);