diff options
Diffstat (limited to 'commands/of_dump.c')
| -rw-r--r-- | commands/of_dump.c | 100 |
1 files changed, 36 insertions, 64 deletions
diff --git a/commands/of_dump.c b/commands/of_dump.c index 06b8e9fcda..2508d4ce11 100644 --- a/commands/of_dump.c +++ b/commands/of_dump.c @@ -1,21 +1,7 @@ -/* - * of_dump.c - dump devicetrees to the console - * - * Copyright (c) 2014 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ +// SPDX-License-Identifier: GPL-2.0-only +// SPDX-FileCopyrightText: © 2014 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix + +/* of_dump.c - dump devicetrees to the console */ #include <common.h> #include <libfile.h> @@ -35,10 +21,13 @@ static void of_print_nodenames(struct device_node *node) { struct device_node *n; - printf("%s\n", node->full_name); + printf("%pOF\n", node); - list_for_each_entry(n, &node->children, parent_list) + list_for_each_entry(n, &node->children, parent_list) { + if (ctrlc()) + return; of_print_nodenames(n); + } } static int do_of_dump(int argc, char *argv[]) @@ -48,11 +37,11 @@ static int do_of_dump(int argc, char *argv[]) int fix = 0; struct device_node *root = NULL, *node, *of_free = NULL; char *dtbfile = NULL; - size_t size; const char *nodename; - int names_only = 0; + unsigned maxpropsize = ~0; + int names_only = 0, properties_only = 0; - while ((opt = getopt(argc, argv, "Ff:n")) > 0) { + while ((opt = getopt(argc, argv, "Ff:npP:")) > 0) { switch (opt) { case 'f': dtbfile = optarg; @@ -63,6 +52,14 @@ static int do_of_dump(int argc, char *argv[]) case 'n': names_only = 1; break; + case 'p': + properties_only = 1; + break; + case 'P': + ret = kstrtouint(optarg, 0, &maxpropsize); + if (ret) + return ret; + break; default: return COMMAND_ERROR_USAGE; } @@ -74,49 +71,21 @@ static int do_of_dump(int argc, char *argv[]) nodename = argv[optind]; if (dtbfile) { - void *fdt; - - fdt = read_file(dtbfile, &size); - if (!fdt) { - printf("unable to read %s: %s\n", dtbfile, strerror(errno)); - return -errno; - } - - root = of_unflatten_dtb(fdt); - - free(fdt); - - if (IS_ERR(root)) { - ret = PTR_ERR(root); - goto out; - } + root = of_read_file(dtbfile); + if (IS_ERR(root)) + return PTR_ERR(root); of_free = root; } else { root = of_get_root_node(); - if (fix) { - /* create a copy of internal devicetree */ - void *fdt; - fdt = of_flatten_dtb(root); - root = of_unflatten_dtb(fdt); - - free(fdt); - - if (IS_ERR(root)) { - ret = PTR_ERR(root); - goto out; - } - - of_free = root; - } + /* copy internal device tree to apply fixups onto it */ + if (fix) + root = of_free = of_dup(root); } - if (fix) { - ret = of_fix_tree(root); - if (ret) - goto out; - } + if (fix) + of_fix_tree(root); node = of_find_node_by_path_or_alias(root, nodename); if (!node) { @@ -125,14 +94,15 @@ static int do_of_dump(int argc, char *argv[]) goto out; } - if (names_only) + if (names_only && !properties_only) of_print_nodenames(node); + else if (properties_only && !names_only) + of_print_properties(node, maxpropsize); else - of_print_nodes(node, 0); + of_print_nodes(node, 0, maxpropsize); out: - if (of_free) - of_delete_node(of_free); + of_delete_node(of_free); return ret; } @@ -142,12 +112,14 @@ BAREBOX_CMD_HELP_TEXT("Options:") BAREBOX_CMD_HELP_OPT ("-f dtb", "work on dtb instead of internal devicetree") BAREBOX_CMD_HELP_OPT ("-F", "return fixed devicetree") BAREBOX_CMD_HELP_OPT ("-n", "Print node names only, no properties") +BAREBOX_CMD_HELP_OPT ("-p", "Print properties only, no child nodes") +BAREBOX_CMD_HELP_OPT ("-P len", "print only len property bytes") BAREBOX_CMD_HELP_END BAREBOX_CMD_START(of_dump) .cmd = do_of_dump, BAREBOX_CMD_DESC("dump devicetree nodes") - BAREBOX_CMD_OPTS("[-fFn] [NODE]") + BAREBOX_CMD_OPTS("[-fFnpP] [NODE]") BAREBOX_CMD_GROUP(CMD_GRP_MISC) BAREBOX_CMD_COMPLETE(devicetree_file_complete) BAREBOX_CMD_HELP(cmd_of_dump_help) |