2005-06-08 09:18:34 +02:00
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/*
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* (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2005.
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*
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2007-09-18 03:44:04 +02:00
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*
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2005-06-08 09:18:34 +02:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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2007-09-18 03:44:04 +02:00
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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2005-06-08 09:18:34 +02:00
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*/
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#include "dtc.h"
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2007-03-23 21:18:41 +01:00
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#include "srcpos.h"
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2005-06-08 09:18:34 +02:00
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2007-04-05 04:04:33 +02:00
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/*
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* Command line options
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*/
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int quiet; /* Level of quietness */
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int reservenum; /* Number of memory reservation slots */
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int minsize; /* Minimum blob size */
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2007-11-28 17:21:12 +01:00
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int padsize; /* Additional padding to blob */
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Support ePAPR compliant phandle properties
Currently, the Linux kernel, libfdt and dtc, when using flattened
device trees encode a node's phandle into a property named
"linux,phandle". The ePAPR specification, however - aiming as it is
to not be a Linux specific spec - requires that phandles be encoded in
a property named simply "phandle".
This patch adds support for this newer approach to dtc and libfdt.
Specifically:
- fdt_get_phandle() will now return the correct phandle if it
is supplied in either of these properties
- fdt_node_offset_by_phandle() will correctly find a node with
the given phandle encoded in either property.
- By default, when auto-generating phandles, dtc will encode
it into both properties for maximum compatibility. A new -H
option allows either only old-style or only new-style
properties to be generated.
- If phandle properties are explicitly supplied in the dts
file, dtc will not auto-generate ones in the alternate format.
- If both properties are supplied, dtc will check that they
have the same value.
- Some existing testcases are updated to use a mix of old and
new-style phandles, partially testing the changes.
- A new phandle_format test further tests the libfdt support,
and the -H option.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2009-11-26 05:37:13 +01:00
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int phandle_format = PHANDLE_BOTH; /* Use linux,phandle or phandle properties */
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2007-04-05 04:04:33 +02:00
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2008-02-29 06:51:28 +01:00
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static void fill_fullpaths(struct node *tree, const char *prefix)
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2005-06-08 09:18:34 +02:00
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{
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struct node *child;
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2007-12-04 04:26:15 +01:00
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const char *unit;
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2005-06-08 09:18:34 +02:00
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tree->fullpath = join_path(prefix, tree->name);
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unit = strchr(tree->name, '@');
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if (unit)
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tree->basenamelen = unit - tree->name;
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else
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tree->basenamelen = strlen(tree->name);
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for_each_child(tree, child)
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fill_fullpaths(child, tree->fullpath);
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}
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2013-05-24 10:02:35 +02:00
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/* Usage related data. */
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static const char usage_synopsis[] = "dtc [options] <input file>";
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static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:fb:i:H:sW:E:hv";
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static struct option const usage_long_opts[] = {
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{"quiet", no_argument, NULL, 'q'},
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{"in-format", a_argument, NULL, 'I'},
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{"out", a_argument, NULL, 'o'},
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{"out-format", a_argument, NULL, 'O'},
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{"out-version", a_argument, NULL, 'V'},
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{"out-dependency", a_argument, NULL, 'd'},
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{"reserve", a_argument, NULL, 'R'},
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{"space", a_argument, NULL, 'S'},
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{"pad", a_argument, NULL, 'p'},
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{"boot-cpu", a_argument, NULL, 'b'},
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{"force", no_argument, NULL, 'f'},
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{"include", a_argument, NULL, 'i'},
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{"sort", no_argument, NULL, 's'},
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{"phandle", a_argument, NULL, 'H'},
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{"warning", a_argument, NULL, 'W'},
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{"error", a_argument, NULL, 'E'},
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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{NULL, no_argument, NULL, 0x0},
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};
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static const char * const usage_opts_help[] = {
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"\n\tQuiet: -q suppress warnings, -qq errors, -qqq all",
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"\n\tInput formats are:\n"
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"\t\tdts - device tree source text\n"
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"\t\tdtb - device tree blob\n"
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"\t\tfs - /proc/device-tree style directory",
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"\n\tOutput file",
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"\n\tOutput formats are:\n"
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"\t\tdts - device tree source text\n"
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"\t\tdtb - device tree blob\n"
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"\t\tasm - assembler source",
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"\n\tBlob version to produce, defaults to %d (for dtb and asm output)", //, DEFAULT_FDT_VERSION);
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"\n\tOutput dependency file",
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"\n\ttMake space for <number> reserve map entries (for dtb and asm output)",
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"\n\tMake the blob at least <bytes> long (extra space)",
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"\n\tAdd padding to the blob of <bytes> long (extra space)",
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"\n\tSet the physical boot cpu",
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"\n\tTry to produce output even if the input tree has errors",
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"\n\tAdd a path to search for include files",
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"\n\tSort nodes and properties before outputting (useful for comparing trees)",
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"\n\tValid phandle formats are:\n"
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"\t\tlegacy - \"linux,phandle\" properties only\n"
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"\t\tepapr - \"phandle\" properties only\n"
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"\t\tboth - Both \"linux,phandle\" and \"phandle\" properties",
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"\n\tEnable/disable warnings (prefix with \"no-\")",
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"\n\tEnable/disable errors (prefix with \"no-\")",
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"\n\tPrint this help and exit",
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"\n\tPrint version and exit",
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NULL,
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};
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2005-06-08 09:18:34 +02:00
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int main(int argc, char *argv[])
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{
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2005-07-15 09:14:24 +02:00
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struct boot_info *bi;
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2007-12-04 04:26:15 +01:00
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const char *inform = "dts";
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const char *outform = "dts";
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const char *outname = "-";
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2012-01-12 19:31:00 +01:00
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const char *depname = NULL;
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2011-06-28 14:47:09 +02:00
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int force = 0, sort = 0;
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2007-12-04 04:26:15 +01:00
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const char *arg;
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2005-06-08 09:18:34 +02:00
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int opt;
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FILE *outf = NULL;
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2007-09-26 05:11:05 +02:00
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int outversion = DEFAULT_FDT_VERSION;
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2008-05-16 05:22:57 +02:00
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long long cmdline_boot_cpuid = -1;
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2005-06-08 09:18:34 +02:00
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2007-04-05 04:04:33 +02:00
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quiet = 0;
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reservenum = 0;
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minsize = 0;
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2007-11-28 17:21:12 +01:00
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padsize = 0;
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2007-03-18 21:49:24 +01:00
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2013-05-24 10:02:35 +02:00
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while ((opt = util_getopt_long()) != EOF) {
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2005-06-08 09:18:34 +02:00
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switch (opt) {
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case 'I':
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inform = optarg;
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break;
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case 'O':
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outform = optarg;
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break;
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case 'o':
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outname = optarg;
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break;
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case 'V':
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outversion = strtol(optarg, NULL, 0);
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break;
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2012-01-12 19:31:00 +01:00
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case 'd':
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depname = optarg;
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break;
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2005-06-08 09:18:34 +02:00
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case 'R':
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reservenum = strtol(optarg, NULL, 0);
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break;
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2007-04-05 04:04:33 +02:00
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case 'S':
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minsize = strtol(optarg, NULL, 0);
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break;
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2007-11-28 17:21:12 +01:00
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case 'p':
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padsize = strtol(optarg, NULL, 0);
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break;
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2005-06-08 09:18:34 +02:00
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case 'f':
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force = 1;
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break;
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2007-03-18 21:49:24 +01:00
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case 'q':
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quiet++;
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break;
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2006-05-31 00:31:51 +02:00
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case 'b':
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2008-05-16 05:22:57 +02:00
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cmdline_boot_cpuid = strtoll(optarg, NULL, 0);
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2006-05-31 00:31:51 +02:00
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break;
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2012-03-15 04:04:13 +01:00
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case 'i':
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srcfile_add_search_path(optarg);
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break;
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2007-07-07 20:52:25 +02:00
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case 'v':
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2013-04-10 20:29:09 +02:00
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util_version();
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Support ePAPR compliant phandle properties
Currently, the Linux kernel, libfdt and dtc, when using flattened
device trees encode a node's phandle into a property named
"linux,phandle". The ePAPR specification, however - aiming as it is
to not be a Linux specific spec - requires that phandles be encoded in
a property named simply "phandle".
This patch adds support for this newer approach to dtc and libfdt.
Specifically:
- fdt_get_phandle() will now return the correct phandle if it
is supplied in either of these properties
- fdt_node_offset_by_phandle() will correctly find a node with
the given phandle encoded in either property.
- By default, when auto-generating phandles, dtc will encode
it into both properties for maximum compatibility. A new -H
option allows either only old-style or only new-style
properties to be generated.
- If phandle properties are explicitly supplied in the dts
file, dtc will not auto-generate ones in the alternate format.
- If both properties are supplied, dtc will check that they
have the same value.
- Some existing testcases are updated to use a mix of old and
new-style phandles, partially testing the changes.
- A new phandle_format test further tests the libfdt support,
and the -H option.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2009-11-26 05:37:13 +01:00
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case 'H':
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if (streq(optarg, "legacy"))
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phandle_format = PHANDLE_LEGACY;
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else if (streq(optarg, "epapr"))
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phandle_format = PHANDLE_EPAPR;
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else if (streq(optarg, "both"))
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phandle_format = PHANDLE_BOTH;
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else
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die("Invalid argument \"%s\" to -H option\n",
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optarg);
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break;
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2010-11-09 23:51:09 +01:00
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case 's':
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sort = 1;
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break;
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2012-07-08 15:25:22 +02:00
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case 'W':
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parse_checks_option(true, false, optarg);
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break;
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case 'E':
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parse_checks_option(false, true, optarg);
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break;
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2007-03-18 21:49:24 +01:00
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case 'h':
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2013-05-24 10:02:35 +02:00
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long_usage(NULL);
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2005-06-08 09:18:34 +02:00
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default:
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2013-05-24 10:02:35 +02:00
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long_usage("unknown option");
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2005-06-08 09:18:34 +02:00
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}
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}
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if (argc > (optind+1))
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2013-05-24 10:02:35 +02:00
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long_usage("missing files");
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2005-06-08 09:18:34 +02:00
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else if (argc < (optind+1))
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arg = "-";
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else
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arg = argv[optind];
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2007-11-28 17:21:12 +01:00
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/* minsize and padsize are mutually exclusive */
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2008-05-16 05:22:35 +02:00
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if (minsize && padsize)
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2007-11-28 17:21:12 +01:00
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die("Can't set both -p and -S\n");
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2012-01-12 19:31:00 +01:00
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if (depname) {
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depfile = fopen(depname, "w");
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if (!depfile)
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die("Couldn't open dependency file %s: %s\n", depname,
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strerror(errno));
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fprintf(depfile, "%s:", outname);
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}
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2008-05-16 05:22:09 +02:00
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if (streq(inform, "dts"))
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2007-03-23 21:18:41 +01:00
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bi = dt_from_source(arg);
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2008-05-16 05:22:09 +02:00
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else if (streq(inform, "fs"))
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2005-07-15 09:14:24 +02:00
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bi = dt_from_fs(arg);
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2008-05-16 05:22:09 +02:00
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else if(streq(inform, "dtb"))
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bi = dt_from_blob(arg);
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else
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2005-06-08 09:18:34 +02:00
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die("Unknown input format \"%s\"\n", inform);
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2012-01-12 19:31:00 +01:00
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if (depfile) {
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fputc('\n', depfile);
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fclose(depfile);
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}
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2008-05-16 05:22:57 +02:00
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if (cmdline_boot_cpuid != -1)
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bi->boot_cpuid_phys = cmdline_boot_cpuid;
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2008-02-29 06:51:28 +01:00
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fill_fullpaths(bi->dt, "");
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2007-12-18 04:54:38 +01:00
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process_checks(force, bi);
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2005-06-08 09:18:34 +02:00
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2010-11-09 23:51:09 +01:00
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if (sort)
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sort_tree(bi);
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2008-05-16 05:22:57 +02:00
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2005-06-08 09:18:34 +02:00
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if (streq(outname, "-")) {
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outf = stdout;
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} else {
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outf = fopen(outname, "w");
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if (! outf)
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die("Couldn't open output file %s: %s\n",
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outname, strerror(errno));
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}
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if (streq(outform, "dts")) {
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2005-10-26 08:56:26 +02:00
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dt_to_source(outf, bi);
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2005-06-08 09:18:34 +02:00
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} else if (streq(outform, "dtb")) {
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2008-05-16 05:22:57 +02:00
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dt_to_blob(outf, bi, outversion);
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2005-06-08 09:18:34 +02:00
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} else if (streq(outform, "asm")) {
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2008-05-16 05:22:57 +02:00
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dt_to_asm(outf, bi, outversion);
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2005-06-08 09:18:34 +02:00
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} else if (streq(outform, "null")) {
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/* do nothing */
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} else {
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die("Unknown output format \"%s\"\n", outform);
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}
|
2007-09-18 03:44:04 +02:00
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2005-06-08 09:18:34 +02:00
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exit(0);
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}
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