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d0dd1077 WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Kyle Harris, kharris@nexus-tech.net | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
d0dd1077 WD |
6 | */ |
7 | ||
8 | /* | |
74de7aef WD |
9 | * The "source" command allows to define "script images", i. e. files |
10 | * that contain command sequences that can be executed by the command | |
11 | * interpreter. It returns the exit status of the last command | |
12 | * executed from the script. This is very similar to running a shell | |
13 | * script in a UNIX shell, hence the name for the command. | |
d0dd1077 WD |
14 | */ |
15 | ||
16 | /* #define DEBUG */ | |
17 | ||
18 | #include <common.h> | |
19 | #include <command.h> | |
20 | #include <image.h> | |
21 | #include <malloc.h> | |
22 | #include <asm/byteorder.h> | |
4ca30d60 | 23 | #include <asm/io.h> |
d0dd1077 WD |
24 | #if defined(CONFIG_8xx) |
25 | #include <mpc8xx.h> | |
26 | #endif | |
d0dd1077 | 27 | |
d0dd1077 | 28 | int |
74de7aef | 29 | source (ulong addr, const char *fit_uname) |
d0dd1077 | 30 | { |
53677ef1 | 31 | ulong len; |
21d29f7f | 32 | #if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
4ca30d60 | 33 | const image_header_t *hdr; |
21d29f7f | 34 | #endif |
424c4abd | 35 | ulong *data; |
424c4abd | 36 | int verify; |
4ca30d60 | 37 | void *buf; |
424c4abd MB |
38 | #if defined(CONFIG_FIT) |
39 | const void* fit_hdr; | |
40 | int noffset; | |
41 | const void *fit_data; | |
42 | size_t fit_len; | |
43 | #endif | |
d0dd1077 | 44 | |
edbed247 | 45 | verify = getenv_yesno ("verify"); |
d0dd1077 | 46 | |
4ca30d60 SG |
47 | buf = map_sysmem(addr, 0); |
48 | switch (genimg_get_format(buf)) { | |
21d29f7f | 49 | #if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
d5934ad7 | 50 | case IMAGE_FORMAT_LEGACY: |
4ca30d60 | 51 | hdr = buf; |
d0dd1077 | 52 | |
d5934ad7 MB |
53 | if (!image_check_magic (hdr)) { |
54 | puts ("Bad magic number\n"); | |
55 | return 1; | |
56 | } | |
d0dd1077 | 57 | |
d5934ad7 MB |
58 | if (!image_check_hcrc (hdr)) { |
59 | puts ("Bad header crc\n"); | |
d0dd1077 WD |
60 | return 1; |
61 | } | |
d0dd1077 | 62 | |
d5934ad7 MB |
63 | if (verify) { |
64 | if (!image_check_dcrc (hdr)) { | |
65 | puts ("Bad data crc\n"); | |
66 | return 1; | |
67 | } | |
68 | } | |
69 | ||
70 | if (!image_check_type (hdr, IH_TYPE_SCRIPT)) { | |
71 | puts ("Bad image type\n"); | |
72 | return 1; | |
73 | } | |
d0dd1077 | 74 | |
d5934ad7 MB |
75 | /* get length of script */ |
76 | data = (ulong *)image_get_data (hdr); | |
d0dd1077 | 77 | |
9a4daad0 | 78 | if ((len = uimage_to_cpu (*data)) == 0) { |
d5934ad7 MB |
79 | puts ("Empty Script\n"); |
80 | return 1; | |
81 | } | |
36cc8cbb BS |
82 | |
83 | /* | |
84 | * scripts are just multi-image files with one component, seek | |
85 | * past the zero-terminated sequence of image lengths to get | |
86 | * to the actual image data | |
87 | */ | |
88 | while (*data++); | |
d5934ad7 | 89 | break; |
21d29f7f | 90 | #endif |
d5934ad7 MB |
91 | #if defined(CONFIG_FIT) |
92 | case IMAGE_FORMAT_FIT: | |
424c4abd MB |
93 | if (fit_uname == NULL) { |
94 | puts ("No FIT subimage unit name\n"); | |
95 | return 1; | |
96 | } | |
97 | ||
4ca30d60 | 98 | fit_hdr = buf; |
424c4abd MB |
99 | if (!fit_check_format (fit_hdr)) { |
100 | puts ("Bad FIT image format\n"); | |
101 | return 1; | |
102 | } | |
103 | ||
104 | /* get script component image node offset */ | |
105 | noffset = fit_image_get_node (fit_hdr, fit_uname); | |
106 | if (noffset < 0) { | |
107 | printf ("Can't find '%s' FIT subimage\n", fit_uname); | |
108 | return 1; | |
109 | } | |
110 | ||
111 | if (!fit_image_check_type (fit_hdr, noffset, IH_TYPE_SCRIPT)) { | |
112 | puts ("Not a image image\n"); | |
113 | return 1; | |
114 | } | |
115 | ||
116 | /* verify integrity */ | |
117 | if (verify) { | |
b8da8366 | 118 | if (!fit_image_verify(fit_hdr, noffset)) { |
424c4abd MB |
119 | puts ("Bad Data Hash\n"); |
120 | return 1; | |
121 | } | |
122 | } | |
123 | ||
124 | /* get script subimage data address and length */ | |
125 | if (fit_image_get_data (fit_hdr, noffset, &fit_data, &fit_len)) { | |
126 | puts ("Could not find script subimage data\n"); | |
127 | return 1; | |
128 | } | |
129 | ||
130 | data = (ulong *)fit_data; | |
131 | len = (ulong)fit_len; | |
132 | break; | |
d5934ad7 MB |
133 | #endif |
134 | default: | |
74de7aef | 135 | puts ("Wrong image format for \"source\" command\n"); |
d0dd1077 WD |
136 | return 1; |
137 | } | |
138 | ||
699b13a6 | 139 | debug ("** Script length: %ld\n", len); |
d51004a8 | 140 | return run_command_list((char *)data, len, 0); |
d0dd1077 WD |
141 | } |
142 | ||
8bde7f77 | 143 | /**************************************************/ |
74de7aef | 144 | #if defined(CONFIG_CMD_SOURCE) |
0e350f81 | 145 | static int do_source(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
d0dd1077 WD |
146 | { |
147 | ulong addr; | |
148 | int rcode; | |
424c4abd | 149 | const char *fit_uname = NULL; |
d0dd1077 | 150 | |
424c4abd | 151 | /* Find script image */ |
d0dd1077 | 152 | if (argc < 2) { |
6d0f6bcf | 153 | addr = CONFIG_SYS_LOAD_ADDR; |
74de7aef | 154 | debug ("* source: default load address = 0x%08lx\n", addr); |
424c4abd MB |
155 | #if defined(CONFIG_FIT) |
156 | } else if (fit_parse_subimage (argv[1], load_addr, &addr, &fit_uname)) { | |
74de7aef | 157 | debug ("* source: subimage '%s' from FIT image at 0x%08lx\n", |
424c4abd MB |
158 | fit_uname, addr); |
159 | #endif | |
d0dd1077 | 160 | } else { |
424c4abd | 161 | addr = simple_strtoul(argv[1], NULL, 16); |
74de7aef | 162 | debug ("* source: cmdline image address = 0x%08lx\n", addr); |
d0dd1077 WD |
163 | } |
164 | ||
424c4abd | 165 | printf ("## Executing script at %08lx\n", addr); |
74de7aef | 166 | rcode = source (addr, fit_uname); |
d0dd1077 WD |
167 | return rcode; |
168 | } | |
8bde7f77 | 169 | |
088f1b19 KP |
170 | #ifdef CONFIG_SYS_LONGHELP |
171 | static char source_help_text[] = | |
74de7aef WD |
172 | "[addr]\n" |
173 | "\t- run script starting at addr\n" | |
a89c33db | 174 | "\t- A valid image header must be present" |
424c4abd | 175 | #if defined(CONFIG_FIT) |
a89c33db | 176 | "\n" |
424c4abd | 177 | "For FIT format uImage addr must include subimage\n" |
a89c33db | 178 | "unit name in the form of addr:<subimg_uname>" |
90253178 | 179 | #endif |
088f1b19 KP |
180 | ""; |
181 | #endif | |
182 | ||
183 | U_BOOT_CMD( | |
184 | source, 2, 0, do_source, | |
185 | "run script from memory", source_help_text | |
424c4abd | 186 | ); |
90253178 | 187 | #endif |