separating environment commands, part 2

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>

1 files changed, 71 insertions, 0 deletions

diff --git a/commands/loadenv.c b/commands/loadenv.c
new file mode 100644
index 0000000000..5db132cc37
--- /dev/null
+++ b/commands/loadenv.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2007 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/**
+ * @file
+ * @brief loadenv: Restoring a environment
+ */
+
+#include <common.h>
+#include <command.h>
+#include <environment.h>
+
+static int do_loadenv(cmd_tbl_t *cmdtp, int argc, char *argv[])
+{
+	char *filename, *dirname;
+
+	if (argc < 3)
+		dirname = "/env";
+	else
+		dirname = argv[2];
+	if (argc < 2)
+		filename = "/dev/env0";
+	else
+		filename = argv[1];
+	printf("loading environment from %s\n", filename);
+	return envfs_load(filename, dirname);
+}
+
+static __maybe_unused char cmd_loadenv_help[] =
+"Usage: loadenv [ENVFS] [DIRECTORY]\n"
+"Load the persistent storage contained in <envfs> to the directory\n"
+"<directory>.\n"
+"If ommitted <directory> defaults to /env and <envfs> defaults to /dev/env0.\n"
+"Note that envfs can only handle files. Directories are skipped silently.\n";
+
+U_BOOT_CMD_START(loadenv)
+	.maxargs	= 3,
+	.cmd		= do_loadenv,
+	.usage		= "load environment from persistent storage",
+	U_BOOT_CMD_HELP(cmd_loadenv_help)
+U_BOOT_CMD_END
+
+/**
+ * @page loadenv_command loadenv
+ *
+ * Usage: loadenv [\<directory>] [\<envfs>]
+ *
+ * Load the persistent storage contained in \<envfs> to the directory \<directory>.
+ *
+ * If ommitted \<directory> defaults to \c /env and \<envfs> defaults to
+ * \c /dev/env0.
+ *
+ * @note envfs can only handle files. Directories are skipped silently.
+ */