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-rw-r--r--cpu/mpc8220/serial.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/cpu/mpc8220/serial.c b/cpu/mpc8220/serial.c
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+++ b/cpu/mpc8220/serial.c
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+/*
+ * (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>
+
+int serial_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+#if defined (CONFIG_EXTUART_CONSOLE)
+ volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
+#endif
+
+ /* Check CPLD Switch 2 whether is external or internal */
+#if defined (CONFIG_EXTUART_CONSOLE)
+ if ((*cpld & 0x02) == 0x02) {
+ gd->bExtUart = 1;
+ return ext_serial_init ();
+ } else
+#endif
+ {
+#if defined(CONFIG_PSC_CONSOLE)
+ gd->bExtUart = 0;
+ return psc_serial_init ();
+#endif
+ }
+
+ return (0);
+}
+
+void serial_putc (const char c)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_putc (c);
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_putc (c);
+#endif
+ }
+}
+
+void serial_puts (const char *s)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_puts (s);
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_puts (s);
+#endif
+ }
+}
+
+int serial_getc (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ return ext_serial_getc ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ return psc_serial_getc ();
+#endif
+ }
+}
+
+int serial_tstc (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ return ext_serial_tstc ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ return psc_serial_tstc ();
+#endif
+ }
+}
+
+void serial_setbrg (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ if (gd->bExtUart) {
+#if defined (CONFIG_EXTUART_CONSOLE)
+ ext_serial_setbrg ();
+#endif
+ } else {
+#if defined(CONFIG_PSC_CONSOLE)
+ psc_serial_setbrg ();
+#endif
+ }
+}