Patch by TsiChung Liew, 23 Sep 2004:

- add support for MPC8220 CPU
- Add support for Alaska and Yukon boards

1 files changed, 110 insertions, 0 deletions

diff --git a/board/alaska/extserial.c b/board/alaska/extserial.c
new file mode 100644
index 00000000000..f17e06e4ea3
--- /dev/null
+++ b/board/alaska/extserial.c
@@ -0,0 +1,110 @@
+/*
+ * (C) Copyright 2004, Freescale, Inc
+ * TsiChung Liew, Tsi-Chung.Liew@freescale.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
+ *
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <mpc8220.h>
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+#   include <ns16550.h>
+
+#   define PADSERIAL_BAUD_115200   0x40
+#   define PADSERIAL_BAUD_57600    0x20
+#   define PADSERIAL_BAUD_9600     0
+#   define PADCARD_FREQ            18432000
+
+const NS16550_t com_port = (NS16550_t) CFG_NS16550_COM1;
+
+int ext_serial_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_init (com_port, baud_divisor);
+
+	return (0);
+}
+
+void ext_serial_putc (const char c)
+{
+	if (c == '\n')
+		NS16550_putc (com_port, '\r');
+
+	NS16550_putc (com_port, c);
+}
+
+void ext_serial_puts (const char *s)
+{
+	while (*s) {
+		serial_putc (*s++);
+	}
+}
+
+int ext_serial_getc (void)
+{
+	return NS16550_getc (com_port);
+}
+
+int ext_serial_tstc (void)
+{
+	return NS16550_tstc (com_port);
+}
+
+void ext_serial_setbrg (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	volatile u8 *dipswitch = (volatile u8 *) (CFG_CPLD_BASE + 0x1002);
+	int baud_divisor;
+
+	/* Find out the baud rate speed on debug card dip switches */
+	if (*dipswitch & PADSERIAL_BAUD_115200)
+		gd->baudrate = 115200;
+	else if (*dipswitch & PADSERIAL_BAUD_57600)
+		gd->baudrate = 57600;
+	else
+		gd->baudrate = 9600;
+
+	/* Debug card frequency */
+	baud_divisor = PADCARD_FREQ / (16 * gd->baudrate);
+
+	NS16550_reinit (com_port, baud_divisor);
+}
+#endif /* CONFIG_EXTUART_CONSOLE */