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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>
10#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 <mapmem.h>
Simon Glass401d1c42020-10-30 21:38:53 -060015#include <asm/global_data.h>
Masahiro Yamada28085762017-03-09 16:28:25 +090016#include <linux/kernel.h>
17#include <linux/sizes.h>
Tom Rini5db28902016-08-12 08:31:15 -040018
Atish Patra414c34e2020-03-05 16:24:23 -080019DECLARE_GLOBAL_DATA_PTR;
Tom Rini5db28902016-08-12 08:31:15 -040020/*
21 * Image booting support
22 */
Simon Glass09140112020-05-10 11:40:03 -060023static int booti_start(struct cmd_tbl *cmdtp, int flag, int argc,
24 char *const argv[], bootm_headers_t *images)
Tom Rini5db28902016-08-12 08:31:15 -040025{
26 int ret;
Bin Chen6808ef92018-01-27 16:59:09 +110027 ulong ld;
28 ulong relocated_addr;
29 ulong image_size;
Atish Patra414c34e2020-03-05 16:24:23 -080030 uint8_t *temp;
31 ulong dest;
32 ulong dest_end;
33 unsigned long comp_len;
34 unsigned long decomp_len;
35 int ctype;
Tom Rini5db28902016-08-12 08:31:15 -040036
37 ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
38 images, 1);
39
40 /* Setup Linux kernel Image entry point */
41 if (!argc) {
Simon Glassbb872dd2019-12-28 10:45:02 -070042 ld = image_load_addr;
Tom Rini5db28902016-08-12 08:31:15 -040043 debug("* kernel: default image load address = 0x%08lx\n",
Simon Glassbb872dd2019-12-28 10:45:02 -070044 image_load_addr);
Tom Rini5db28902016-08-12 08:31:15 -040045 } else {
Bin Chen6808ef92018-01-27 16:59:09 +110046 ld = simple_strtoul(argv[0], NULL, 16);
Masahiro Yamadabf14d9a2018-02-13 12:10:02 +090047 debug("* kernel: cmdline image address = 0x%08lx\n", ld);
Tom Rini5db28902016-08-12 08:31:15 -040048 }
49
Atish Patra414c34e2020-03-05 16:24:23 -080050 temp = map_sysmem(ld, 0);
51 ctype = image_decomp_type(temp, 2);
52 if (ctype > 0) {
53 dest = env_get_ulong("kernel_comp_addr_r", 16, 0);
54 comp_len = env_get_ulong("kernel_comp_size", 16, 0);
55 if (!dest || !comp_len) {
56 puts("kernel_comp_addr_r or kernel_comp_size is not provided!\n");
57 return -EINVAL;
58 }
59 if (dest < gd->ram_base || dest > gd->ram_top) {
60 puts("kernel_comp_addr_r is outside of DRAM range!\n");
61 return -EINVAL;
62 }
63
64 debug("kernel image compression type %d size = 0x%08lx address = 0x%08lx\n",
65 ctype, comp_len, (ulong)dest);
66 decomp_len = comp_len * 10;
67 ret = image_decomp(ctype, 0, ld, IH_TYPE_KERNEL,
68 (void *)dest, (void *)ld, comp_len,
69 decomp_len, &dest_end);
70 if (ret)
71 return ret;
72 /* dest_end contains the uncompressed Image size */
73 memmove((void *) ld, (void *)dest, dest_end);
74 }
75 unmap_sysmem((void *)ld);
76
Marek Vasut7f13b372018-06-13 06:13:32 +020077 ret = booti_setup(ld, &relocated_addr, &image_size, false);
Tom Rini5db28902016-08-12 08:31:15 -040078 if (ret != 0)
79 return 1;
80
Bin Chen6808ef92018-01-27 16:59:09 +110081 /* Handle BOOTM_STATE_LOADOS */
82 if (relocated_addr != ld) {
Tero Kristo9b83f9c2020-06-12 15:41:21 +030083 printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n", ld,
84 relocated_addr, relocated_addr + image_size);
Bin Chen6808ef92018-01-27 16:59:09 +110085 memmove((void *)relocated_addr, (void *)ld, image_size);
86 }
Tom Rini5db28902016-08-12 08:31:15 -040087
Bin Chen6808ef92018-01-27 16:59:09 +110088 images->ep = relocated_addr;
Lokesh Vutla683cdd62019-10-07 13:52:16 +053089 images->os.start = relocated_addr;
90 images->os.end = relocated_addr + image_size;
91
Bin Chen6808ef92018-01-27 16:59:09 +110092 lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size));
Tom Rini5db28902016-08-12 08:31:15 -040093
94 /*
95 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
96 * have a header that provide this informaiton.
97 */
Tero Kristofbde7582020-06-12 15:41:20 +030098 if (bootm_find_images(flag, argc, argv, relocated_addr, image_size))
Tom Rini5db28902016-08-12 08:31:15 -040099 return 1;
100
101 return 0;
102}
103
Simon Glass09140112020-05-10 11:40:03 -0600104int do_booti(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
Tom Rini5db28902016-08-12 08:31:15 -0400105{
106 int ret;
107
108 /* Consume 'booti' */
109 argc--; argv++;
110
111 if (booti_start(cmdtp, flag, argc, argv, &images))
112 return 1;
113
114 /*
115 * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
116 * disable interrupts ourselves
117 */
118 bootm_disable_interrupts();
119
120 images.os.os = IH_OS_LINUX;
Atish Patra3cedc972019-05-06 17:49:39 -0700121#ifdef CONFIG_RISCV_SMODE
122 images.os.arch = IH_ARCH_RISCV;
123#elif CONFIG_ARM64
Scott Wood0fff19a2017-01-26 16:55:44 -0600124 images.os.arch = IH_ARCH_ARM64;
Atish Patra3cedc972019-05-06 17:49:39 -0700125#endif
Tom Rini5db28902016-08-12 08:31:15 -0400126 ret = do_bootm_states(cmdtp, flag, argc, argv,
Cédric Schieli4943dc22017-01-23 16:51:45 +0100127#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
128 BOOTM_STATE_RAMDISK |
129#endif
Tom Rini5db28902016-08-12 08:31:15 -0400130 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
131 BOOTM_STATE_OS_GO,
132 &images, 1);
133
134 return ret;
135}
136
137#ifdef CONFIG_SYS_LONGHELP
138static char booti_help_text[] =
139 "[addr [initrd[:size]] [fdt]]\n"
Atish Patra414c34e2020-03-05 16:24:23 -0800140 " - boot Linux flat or compressed 'Image' stored at 'addr'\n"
Tom Rini5db28902016-08-12 08:31:15 -0400141 "\tThe argument 'initrd' is optional and specifies the address\n"
142 "\tof an initrd in memory. The optional parameter ':size' allows\n"
143 "\tspecifying the size of a RAW initrd.\n"
Atish Patra414c34e2020-03-05 16:24:23 -0800144 "\tCurrently only booting from gz, bz2, lzma and lz4 compression\n"
145 "\ttypes are supported. In order to boot from any of these compressed\n"
Vagrant Cascadiand1896e32020-06-04 10:42:01 -0700146 "\timages, user have to set kernel_comp_addr_r and kernel_comp_size environment\n"
Atish Patra414c34e2020-03-05 16:24:23 -0800147 "\tvariables beforehand.\n"
Tom Rini5db28902016-08-12 08:31:15 -0400148#if defined(CONFIG_OF_LIBFDT)
149 "\tSince booting a Linux kernel requires a flat device-tree, a\n"
150 "\tthird argument providing the address of the device-tree blob\n"
151 "\tis required. To boot a kernel with a device-tree blob but\n"
152 "\twithout an initrd image, use a '-' for the initrd argument.\n"
153#endif
154 "";
155#endif
156
157U_BOOT_CMD(
158 booti, CONFIG_SYS_MAXARGS, 1, do_booti,
Atish Patra3cedc972019-05-06 17:49:39 -0700159 "boot Linux kernel 'Image' format from memory", booti_help_text
Tom Rini5db28902016-08-12 08:31:15 -0400160);