aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/dtc/dtc.c
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/dtc/dtc.c')
-rw-r--r--scripts/dtc/dtc.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c
new file mode 100644
index 000000000000..d8fd43b4ac1a
--- /dev/null
+++ b/scripts/dtc/dtc.c
@@ -0,0 +1,226 @@
1/*
2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
3 *
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include "dtc.h"
22#include "srcpos.h"
23
24#include "version_gen.h"
25
26/*
27 * Command line options
28 */
29int quiet; /* Level of quietness */
30int reservenum; /* Number of memory reservation slots */
31int minsize; /* Minimum blob size */
32int padsize; /* Additional padding to blob */
33
34char *join_path(const char *path, const char *name)
35{
36 int lenp = strlen(path);
37 int lenn = strlen(name);
38 int len;
39 int needslash = 1;
40 char *str;
41
42 len = lenp + lenn + 2;
43 if ((lenp > 0) && (path[lenp-1] == '/')) {
44 needslash = 0;
45 len--;
46 }
47
48 str = xmalloc(len);
49 memcpy(str, path, lenp);
50 if (needslash) {
51 str[lenp] = '/';
52 lenp++;
53 }
54 memcpy(str+lenp, name, lenn+1);
55 return str;
56}
57
58static void fill_fullpaths(struct node *tree, const char *prefix)
59{
60 struct node *child;
61 const char *unit;
62
63 tree->fullpath = join_path(prefix, tree->name);
64
65 unit = strchr(tree->name, '@');
66 if (unit)
67 tree->basenamelen = unit - tree->name;
68 else
69 tree->basenamelen = strlen(tree->name);
70
71 for_each_child(tree, child)
72 fill_fullpaths(child, tree->fullpath);
73}
74
75static void __attribute__ ((noreturn)) usage(void)
76{
77 fprintf(stderr, "Usage:\n");
78 fprintf(stderr, "\tdtc [options] <input file>\n");
79 fprintf(stderr, "\nOptions:\n");
80 fprintf(stderr, "\t-h\n");
81 fprintf(stderr, "\t\tThis help text\n");
82 fprintf(stderr, "\t-q\n");
83 fprintf(stderr, "\t\tQuiet: -q suppress warnings, -qq errors, -qqq all\n");
84 fprintf(stderr, "\t-I <input format>\n");
85 fprintf(stderr, "\t\tInput formats are:\n");
86 fprintf(stderr, "\t\t\tdts - device tree source text\n");
87 fprintf(stderr, "\t\t\tdtb - device tree blob\n");
88 fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n");
89 fprintf(stderr, "\t-o <output file>\n");
90 fprintf(stderr, "\t-O <output format>\n");
91 fprintf(stderr, "\t\tOutput formats are:\n");
92 fprintf(stderr, "\t\t\tdts - device tree source text\n");
93 fprintf(stderr, "\t\t\tdtb - device tree blob\n");
94 fprintf(stderr, "\t\t\tasm - assembler source\n");
95 fprintf(stderr, "\t-V <output version>\n");
96 fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION);
97 fprintf(stderr, "\t-R <number>\n");
98 fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n");
99 fprintf(stderr, "\t-S <bytes>\n");
100 fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n");
101 fprintf(stderr, "\t-p <bytes>\n");
102 fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n");
103 fprintf(stderr, "\t-b <number>\n");
104 fprintf(stderr, "\t\tSet the physical boot cpu\n");
105 fprintf(stderr, "\t-f\n");
106 fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n");
107 fprintf(stderr, "\t-v\n");
108 fprintf(stderr, "\t\tPrint DTC version and exit\n");
109 exit(3);
110}
111
112int main(int argc, char *argv[])
113{
114 struct boot_info *bi;
115 const char *inform = "dts";
116 const char *outform = "dts";
117 const char *outname = "-";
118 int force = 0, check = 0;
119 const char *arg;
120 int opt;
121 FILE *outf = NULL;
122 int outversion = DEFAULT_FDT_VERSION;
123 long long cmdline_boot_cpuid = -1;
124
125 quiet = 0;
126 reservenum = 0;
127 minsize = 0;
128 padsize = 0;
129
130 while ((opt = getopt(argc, argv, "hI:O:o:V:R:S:p:fcqb:v")) != EOF) {
131 switch (opt) {
132 case 'I':
133 inform = optarg;
134 break;
135 case 'O':
136 outform = optarg;
137 break;
138 case 'o':
139 outname = optarg;
140 break;
141 case 'V':
142 outversion = strtol(optarg, NULL, 0);
143 break;
144 case 'R':
145 reservenum = strtol(optarg, NULL, 0);
146 break;
147 case 'S':
148 minsize = strtol(optarg, NULL, 0);
149 break;
150 case 'p':
151 padsize = strtol(optarg, NULL, 0);
152 break;
153 case 'f':
154 force = 1;
155 break;
156 case 'c':
157 check = 1;
158 break;
159 case 'q':
160 quiet++;
161 break;
162 case 'b':
163 cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
164 break;
165 case 'v':
166 printf("Version: %s\n", DTC_VERSION);
167 exit(0);
168 case 'h':
169 default:
170 usage();
171 }
172 }
173
174 if (argc > (optind+1))
175 usage();
176 else if (argc < (optind+1))
177 arg = "-";
178 else
179 arg = argv[optind];
180
181 /* minsize and padsize are mutually exclusive */
182 if (minsize && padsize)
183 die("Can't set both -p and -S\n");
184
185 fprintf(stderr, "DTC: %s->%s on file \"%s\"\n",
186 inform, outform, arg);
187
188 if (streq(inform, "dts"))
189 bi = dt_from_source(arg);
190 else if (streq(inform, "fs"))
191 bi = dt_from_fs(arg);
192 else if(streq(inform, "dtb"))
193 bi = dt_from_blob(arg);
194 else
195 die("Unknown input format \"%s\"\n", inform);
196
197 if (cmdline_boot_cpuid != -1)
198 bi->boot_cpuid_phys = cmdline_boot_cpuid;
199
200 fill_fullpaths(bi->dt, "");
201 process_checks(force, bi);
202
203
204 if (streq(outname, "-")) {
205 outf = stdout;
206 } else {
207 outf = fopen(outname, "w");
208 if (! outf)
209 die("Couldn't open output file %s: %s\n",
210 outname, strerror(errno));
211 }
212
213 if (streq(outform, "dts")) {
214 dt_to_source(outf, bi);
215 } else if (streq(outform, "dtb")) {
216 dt_to_blob(outf, bi, outversion);
217 } else if (streq(outform, "asm")) {
218 dt_to_asm(outf, bi, outversion);
219 } else if (streq(outform, "null")) {
220 /* do nothing */
221 } else {
222 die("Unknown output format \"%s\"\n", outform);
223 }
224
225 exit(0);
226}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 12:06:47 -0500