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authorwdenk <wdenk>2002-08-26 22:36:39 +0000
committerwdenk <wdenk>2002-08-26 22:36:39 +0000
commitf8cac651b33efa270e4dfa1292d01a3b5d7a62cf (patch)
tree78f852cbd430308689fb44f6d2ab243cf5cdd73b /board/bmw/serial.c
parent67c4f48a49bb428bca409b1f6b6ca03f448c3645 (diff)
Initial revision
Diffstat (limited to 'board/bmw/serial.c')
-rw-r--r--board/bmw/serial.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/board/bmw/serial.c b/board/bmw/serial.c
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+/*
+ * (C) Copyright 2000
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.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
+ */
+
+#include <common.h>
+#include "ns16550.h"
+
+#if CONFIG_CONS_INDEX == 1
+static struct NS16550 *console =
+ (struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
+#elif CONFIG_CONS_INDEX == 2
+static struct NS16550 *console =
+ (struct NS16550 *) (CFG_EUMB_ADDR + 0x4500);
+#else
+#error no valid console defined
+#endif
+
+extern ulong get_bus_freq (ulong);
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int clock_divisor = gd->bus_clk / 16 / gd->baudrate;
+
+ NS16550_init (CONFIG_CONS_INDEX - 1, clock_divisor);
+
+ return (0);
+}
+
+void serial_putc (const char c)
+{
+ if (c == '\n') {
+ serial_putc ('\r');
+ }
+ NS16550_putc (console, c);
+}
+
+void serial_puts (const char *s)
+{
+ while (*s) {
+ serial_putc (*s++);
+ }
+}
+
+
+int serial_getc (void)
+{
+ return NS16550_getc (console);
+}
+
+int serial_tstc (void)
+{
+ return NS16550_tstc (console);
+}
+
+void serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ int clock_divisor = get_bus_freq (0) / 16 / gd->baudrate;
+
+ NS16550_reinit (console, clock_divisor);
+}