commands: Add of_fixup_status

of_fixup_status enables or disables the status property of a
given node with a device tree fixup.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands/Kconfig

@@ -2114,6 +2114,22 @@ config CMD_OF_DISPLAY_TIMINGS
 		  -s path	select display-timings and register oftree fixup
 		  -f dtb	work on dtb. Has no effect on -s option
 
+config CMD_OF_FIXUP_STATUS
+	tristate
+	select OFTREE
+	prompt "of_fixup_status"
+	help
+	  Register a fixup to enable or disable node
+
+	  Usage: of_fixup_node [-d] path
+
+	  Options:
+		  -d		disable node
+		  path		Node path or alias
+
+	  Register a fixup to enable or disable a device tree node.
+	  Nodes are enabled on default. Disabled with -d.
+
 config CMD_OFTREE
 	tristate
 	select OFTREE

commands/Makefile

@@ -78,6 +78,7 @@ obj-$(CONFIG_CMD_OF_PROPERTY)	+= of_property.o
 obj-$(CONFIG_CMD_OF_NODE)	+= of_node.o
 obj-$(CONFIG_CMD_OF_DUMP)	+= of_dump.o
 obj-$(CONFIG_CMD_OF_DISPLAY_TIMINGS)	+= of_display_timings.o
+obj-$(CONFIG_CMD_OF_FIXUP_STATUS)	+= of_fixup_status.o
 obj-$(CONFIG_CMD_MAGICVAR)	+= magicvar.o
 obj-$(CONFIG_CMD_IOMEM)		+= iomemport.o
 obj-$(CONFIG_CMD_LINUX_EXEC)	+= linux_exec.o

commands/of_fixup_status.c

@@ -0,0 +1,74 @@
+/*
+ * of_fixup_status.c - Register a fixup to enable or disable nodes in the
+ * device tree
+ *
+ * Copyright (c) 2014-2016 PHYTEC Messtechnik GmbH
+ * Author:
+ *	Teresa Remmet
+ *	Wadim Egorov
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <of.h>
+#include <command.h>
+#include <malloc.h>
+#include <complete.h>
+#include <asm/byteorder.h>
+#include <linux/err.h>
+#include <getopt.h>
+#include <string.h>
+
+static int do_of_fixup_status(int argc, char *argv[])
+{
+	int opt;
+	bool status = 1;
+	char *node = NULL;
+
+	while ((opt = getopt(argc, argv, "d")) > 0) {
+		switch (opt) {
+		case 'd':
+			status = 0;
+			break;
+		default:
+			return COMMAND_ERROR_USAGE;
+		}
+	}
+
+	if (optind == argc)
+		return COMMAND_ERROR_USAGE;
+
+	node = xstrdup(argv[optind]);
+
+	of_register_set_status_fixup(node, status);
+
+	return 0;
+}
+
+BAREBOX_CMD_HELP_START(of_fixup_status)
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_OPT("-d",  "disable node")
+BAREBOX_CMD_HELP_OPT("path",  "Node path\n")
+BAREBOX_CMD_HELP_TEXT("Register a fixup to enable or disable a device tree node.")
+BAREBOX_CMD_HELP_TEXT("Nodes are enabled on default. Disabled with -d.")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(of_fixup_status)
+	.cmd	= do_of_fixup_status,
+	BAREBOX_CMD_DESC("register a fixup to enable or disable node")
+	BAREBOX_CMD_OPTS("[-d] path")
+	BAREBOX_CMD_GROUP(CMD_GRP_MISC)
+	BAREBOX_CMD_COMPLETE(devicetree_file_complete)
+	BAREBOX_CMD_HELP(cmd_of_fixup_status_help)
+BAREBOX_CMD_END