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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
5db28905 TR |
2 | /* |
3 | * (C) Copyright 2000-2009 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
5db28905 TR |
5 | */ |
6 | ||
7 | #include <common.h> | |
8 | #include <bootm.h> | |
9 | #include <command.h> | |
10 | #include <image.h> | |
36bf446b | 11 | #include <irq_func.h> |
5db28905 | 12 | #include <lmb.h> |
f7ae49fc | 13 | #include <log.h> |
5db28905 | 14 | #include <mapmem.h> |
401d1c4f | 15 | #include <asm/global_data.h> |
28085764 MY |
16 | #include <linux/kernel.h> |
17 | #include <linux/sizes.h> | |
5db28905 | 18 | |
414c34ed | 19 | DECLARE_GLOBAL_DATA_PTR; |
5db28905 TR |
20 | /* |
21 | * Image booting support | |
22 | */ | |
a6c49161 | 23 | static int booti_start(struct bootm_info *bmi) |
5db28905 | 24 | { |
a6c49161 | 25 | struct bootm_headers *images = bmi->images; |
5db28905 | 26 | int ret; |
6808ef9a BC |
27 | ulong ld; |
28 | ulong relocated_addr; | |
29 | ulong image_size; | |
414c34ed AP |
30 | uint8_t *temp; |
31 | ulong dest; | |
32 | ulong dest_end; | |
33 | unsigned long comp_len; | |
34 | unsigned long decomp_len; | |
35 | int ctype; | |
5db28905 | 36 | |
b5d397f4 | 37 | ret = bootm_run_states(bmi, BOOTM_STATE_START); |
5db28905 TR |
38 | |
39 | /* Setup Linux kernel Image entry point */ | |
a6c49161 | 40 | if (!bmi->addr_img) { |
bb872dd9 | 41 | ld = image_load_addr; |
5db28905 | 42 | debug("* kernel: default image load address = 0x%08lx\n", |
bb872dd9 | 43 | image_load_addr); |
5db28905 | 44 | } else { |
a6c49161 | 45 | ld = hextoul(bmi->addr_img, NULL); |
bf14d9a7 | 46 | debug("* kernel: cmdline image address = 0x%08lx\n", ld); |
5db28905 TR |
47 | } |
48 | ||
414c34ed AP |
49 | temp = map_sysmem(ld, 0); |
50 | ctype = image_decomp_type(temp, 2); | |
51 | if (ctype > 0) { | |
52 | dest = env_get_ulong("kernel_comp_addr_r", 16, 0); | |
53 | comp_len = env_get_ulong("kernel_comp_size", 16, 0); | |
54 | if (!dest || !comp_len) { | |
55 | puts("kernel_comp_addr_r or kernel_comp_size is not provided!\n"); | |
56 | return -EINVAL; | |
57 | } | |
58 | if (dest < gd->ram_base || dest > gd->ram_top) { | |
59 | puts("kernel_comp_addr_r is outside of DRAM range!\n"); | |
60 | return -EINVAL; | |
61 | } | |
62 | ||
63 | debug("kernel image compression type %d size = 0x%08lx address = 0x%08lx\n", | |
64 | ctype, comp_len, (ulong)dest); | |
65 | decomp_len = comp_len * 10; | |
66 | ret = image_decomp(ctype, 0, ld, IH_TYPE_KERNEL, | |
67 | (void *)dest, (void *)ld, comp_len, | |
68 | decomp_len, &dest_end); | |
69 | if (ret) | |
70 | return ret; | |
71 | /* dest_end contains the uncompressed Image size */ | |
72 | memmove((void *) ld, (void *)dest, dest_end); | |
73 | } | |
74 | unmap_sysmem((void *)ld); | |
75 | ||
7f13b374 | 76 | ret = booti_setup(ld, &relocated_addr, &image_size, false); |
04fc470c | 77 | if (ret) |
5db28905 TR |
78 | return 1; |
79 | ||
6808ef9a BC |
80 | /* Handle BOOTM_STATE_LOADOS */ |
81 | if (relocated_addr != ld) { | |
9b83f9c5 TK |
82 | printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n", ld, |
83 | relocated_addr, relocated_addr + image_size); | |
6808ef9a BC |
84 | memmove((void *)relocated_addr, (void *)ld, image_size); |
85 | } | |
5db28905 | 86 | |
6808ef9a | 87 | images->ep = relocated_addr; |
683cdd68 LV |
88 | images->os.start = relocated_addr; |
89 | images->os.end = relocated_addr + image_size; | |
90 | ||
6808ef9a | 91 | lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size)); |
5db28905 TR |
92 | |
93 | /* | |
94 | * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not | |
95 | * have a header that provide this informaiton. | |
96 | */ | |
a6c49161 SG |
97 | if (bootm_find_images(image_load_addr, bmi->conf_ramdisk, bmi->conf_fdt, |
98 | relocated_addr, image_size)) | |
5db28905 TR |
99 | return 1; |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
09140113 | 104 | int do_booti(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) |
5db28905 | 105 | { |
a6c49161 | 106 | struct bootm_info bmi; |
0c96b681 | 107 | int states; |
5db28905 TR |
108 | int ret; |
109 | ||
110 | /* Consume 'booti' */ | |
111 | argc--; argv++; | |
112 | ||
a6c49161 SG |
113 | bootm_init(&bmi); |
114 | if (argc) | |
115 | bmi.addr_img = argv[0]; | |
116 | if (argc > 1) | |
117 | bmi.conf_ramdisk = argv[1]; | |
118 | if (argc > 2) | |
119 | bmi.conf_fdt = argv[2]; | |
120 | bmi.boot_progress = true; | |
121 | bmi.cmd_name = "booti"; | |
122 | /* do not set up argc and argv[] since nothing uses them */ | |
123 | ||
124 | if (booti_start(&bmi)) | |
5db28905 TR |
125 | return 1; |
126 | ||
127 | /* | |
128 | * We are doing the BOOTM_STATE_LOADOS state ourselves, so must | |
129 | * disable interrupts ourselves | |
130 | */ | |
131 | bootm_disable_interrupts(); | |
132 | ||
133 | images.os.os = IH_OS_LINUX; | |
0c96b681 SG |
134 | if (IS_ENABLED(CONFIG_RISCV_SMODE)) |
135 | images.os.arch = IH_ARCH_RISCV; | |
136 | else if (IS_ENABLED(CONFIG_ARM64)) | |
137 | images.os.arch = IH_ARCH_ARM64; | |
138 | ||
139 | states = BOOTM_STATE_MEASURE | BOOTM_STATE_OS_PREP | | |
140 | BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO; | |
141 | if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH)) | |
142 | states |= BOOTM_STATE_RAMDISK; | |
a6c49161 | 143 | |
b5d397f4 | 144 | ret = bootm_run_states(&bmi, states); |
5db28905 TR |
145 | |
146 | return ret; | |
147 | } | |
148 | ||
3616218b | 149 | U_BOOT_LONGHELP(booti, |
5db28905 | 150 | "[addr [initrd[:size]] [fdt]]\n" |
414c34ed | 151 | " - boot Linux flat or compressed 'Image' stored at 'addr'\n" |
5db28905 TR |
152 | "\tThe argument 'initrd' is optional and specifies the address\n" |
153 | "\tof an initrd in memory. The optional parameter ':size' allows\n" | |
154 | "\tspecifying the size of a RAW initrd.\n" | |
414c34ed AP |
155 | "\tCurrently only booting from gz, bz2, lzma and lz4 compression\n" |
156 | "\ttypes are supported. In order to boot from any of these compressed\n" | |
d1896e36 | 157 | "\timages, user have to set kernel_comp_addr_r and kernel_comp_size environment\n" |
414c34ed | 158 | "\tvariables beforehand.\n" |
5db28905 TR |
159 | #if defined(CONFIG_OF_LIBFDT) |
160 | "\tSince booting a Linux kernel requires a flat device-tree, a\n" | |
161 | "\tthird argument providing the address of the device-tree blob\n" | |
162 | "\tis required. To boot a kernel with a device-tree blob but\n" | |
163 | "\twithout an initrd image, use a '-' for the initrd argument.\n" | |
164 | #endif | |
3616218b | 165 | ); |
5db28905 TR |
166 | |
167 | U_BOOT_CMD( | |
168 | booti, CONFIG_SYS_MAXARGS, 1, do_booti, | |
3cedc974 | 169 | "boot Linux kernel 'Image' format from memory", booti_help_text |
5db28905 | 170 | ); |