* Use 1-byte-read instead of -write for iprobe() function

  Add i2c commands to PM826 config

* extend I2C POST code: check for list on known addresses

1 files changed, 78 insertions, 0 deletions

diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c
new file mode 100644
index 0000000..1c22e71
--- /dev/null
+++ b/tools/env/fw_env_main.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ */
+
+/*
+ * Command line user interface to firmware (=PPCBoot) environment.
+ *
+ * Implements:
+ *	fw_printenv [ name ... ]
+ *		- prints the values of the environment variables
+ *		  "name", or the whole environment if no names are
+ *		  specified
+ *	fw_setenv name [ value ... ]
+ *		- If a name without any values is given, the variable
+ *		  with this name is deleted from the environment;
+ *		  otherwise, all "value" arguments are concatenated,
+ *		  separated by sinlge blank characters, and the
+ *		  resulting string is assigned to the environment
+ *		  variable "name"
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "fw_env.h"
+
+#define	CMD_PRINTENV	"fw_printenv"
+#define CMD_SETENV	"fw_setenv"
+
+int
+main(int argc, char *argv[])
+{
+	char *p;
+	char *cmdname = *argv;
+
+	if ((p = strrchr (cmdname, '/')) != NULL) {
+		cmdname = p + 1;
+	}
+
+	if (strcmp(cmdname, CMD_PRINTENV) == 0) {
+
+			fw_printenv (argc, argv);
+
+			return (EXIT_SUCCESS);
+
+	} else if (strcmp(cmdname, CMD_SETENV) == 0) {
+
+			if (fw_setenv (argc, argv) != 0)
+				return (EXIT_FAILURE);
+
+			return (EXIT_SUCCESS);
+	}
+
+	fprintf (stderr,
+		"Identity crisis - may be called as `" CMD_PRINTENV
+		"' or as `" CMD_SETENV "' but not as `%s'\n",
+		cmdname);
+	return (EXIT_FAILURE);
+}