1 files changed, 122 insertions, 0 deletions
diff --git a/common/cmd_dcr.c b/common/cmd_dcr.c
new file mode 100755
index 0000000..5842471
--- /dev/null
+++ b/common/cmd_dcr.c
@@ -0,0 +1,122 @@
+/*
+ * (C) Copyright 2001
+ * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
+ *
+ * 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
+ */
+
+/*
+ * AMCC 4XX DCR Functions
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+
+#if defined(CONFIG_4xx) && (CONFIG_COMMANDS & CFG_CMD_SETGETDCR)
+
+/* =======================================================================
+ * Interpreter command to retrieve an AMCC PPC 4xx Device Control Register
+ * =======================================================================
+ */
+int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
+{
+	unsigned short dcrn;	/* Device Control Register Num */
+	unsigned long value;	/* DCR's value */
+
+	unsigned long get_dcr (unsigned short);
+
+	/* Validate arguments */
+	if (argc < 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	/* Get a DCR */
+	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
+	value = get_dcr (dcrn);
+
+	printf ("%04x: %08lx\n", dcrn, value);
+
+	return 0;
+}
+
+
+/* ======================================================================
+ * Interpreter command to set an AMCC PPC 4xx Device Control Register
+ * ======================================================================
+*/
+int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	unsigned long get_dcr (unsigned short);
+	unsigned long set_dcr (unsigned short, unsigned long);
+	unsigned short dcrn;	/* Device Control Register Num */
+	unsigned long value;
+
+	/* DCR's value */
+	int nbytes;
+	extern char console_buffer[];
+
+	/* Validate arguments */
+	if (argc < 2) {
+		printf ("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	/* Set a DCR */
+	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
+	do {
+		value = get_dcr (dcrn);
+		printf ("%04x: %08lx", dcrn, value);
+		nbytes = readline (" ? ");
+		if (nbytes == 0) {
+			/*
+			 * <CR> pressed as only input, don't modify current
+			 * location and exit command.
+			 */
+			nbytes = 1;
+			return 0;
+		} else {
+			unsigned long i;
+			char *endp;
+
+			i = simple_strtoul (console_buffer, &endp, 16);
+			nbytes = endp - console_buffer;
+			if (nbytes)
+				set_dcr (dcrn, i);
+		}
+	} while (nbytes);
+
+	return 0;
+}
+
+/***************************************************/
+
+U_BOOT_CMD(
+	getdcr,	2,	1,	do_getdcr,
+	"getdcr  - Get an AMCC PPC 4xx DCR's value\n",
+	"dcrn - return a DCR's value.\n"
+);
+U_BOOT_CMD(
+	setdcr,	2,	1,	do_setdcr,
+	"setdcr  - Set an AMCC PPC 4xx DCR's value\n",
+	"dcrn - set a DCR's value.\n"
+);
+
+#endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */