* Code cleanup

* Patch by Sascha Hauer, 28 Jun:
  - add generic support for Motorola i.MX architecture
  - add support for mx1ads, mx1fs2 and scb9328 boards

* Patches by Marc Leeman, 23 Jul 2004:
  - Add define for the PCI/Memory Buffer Configuration Register
  - corrected comments in cpu/mpc824x/cpu_init.c

* Add support for multiple serial interfaces
  (for example to allow modem dial-in / dial-out)

1 files changed, 196 insertions, 0 deletions

diff --git a/common/serial.c b/common/serial.c
new file mode 100644
index 0000000..f89bb0a
--- /dev/null
+++ b/common/serial.c
@@ -0,0 +1,196 @@
+/*
+ * (C) Copyright 2004
+ * 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
+ */
+
+#include <common.h>
+#include <serial.h>
+#include <devices.h>
+
+#if defined(CONFIG_SERIAL_MULTI)
+
+static struct serial_device *serial_devices = NULL;
+static struct serial_device *serial_current = NULL;
+
+#ifndef CONFIG_LWMON
+struct serial_device * default_serial_console (void)
+{
+#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
+	return &serial_smc_device;
+#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
+   || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
+	return &serial_scc_device;
+#else
+#error No default console
+#endif
+}
+#endif
+
+static int serial_register(struct serial_device* dev)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	dev->init += gd->reloc_off;
+	dev->setbrg += gd->reloc_off;
+	dev->getc += gd->reloc_off;
+	dev->tstc += gd->reloc_off;
+	dev->putc += gd->reloc_off;
+	dev->puts += gd->reloc_off;
+
+	dev->next = serial_devices;
+	serial_devices = dev;
+
+	return 0;
+}
+
+void serial_initialize(void)
+{
+#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
+	serial_register(&serial_smc_device);
+#endif
+#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
+ || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
+	serial_register(&serial_scc_device);
+#endif
+
+	serial_assign(default_serial_console()->name);
+}
+
+void serial_devices_init(void)
+{
+	device_t dev;
+	struct serial_device *s = serial_devices;
+
+	while (s)
+	{
+		memset (&dev, 0, sizeof (dev));
+
+		strcpy (dev.name, s->name);
+		dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
+
+		dev.start = s->init;
+		dev.putc = s->putc;
+		dev.puts = s->puts;
+		dev.getc = s->getc;
+		dev.tstc = s->tstc;
+
+		device_register (&dev);
+
+		s = s->next;
+	}
+}
+
+int serial_assign(char * name)
+{
+	struct serial_device *s;
+
+	for (s = serial_devices; s; s = s->next)
+	{
+		if (strcmp(s->name, name) == 0)
+		{
+			serial_current = s;
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+void serial_reinit_all(void)
+{
+	struct serial_device *s;
+
+	for (s = serial_devices; s; s = s->next)
+	{
+		s->init();
+	}
+}
+
+int serial_init(void)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		return dev->init();
+	}
+
+	return serial_current->init();
+}
+
+void serial_setbrg(void)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		dev->setbrg();
+		return;
+	}
+
+	serial_current->setbrg();
+}
+
+int serial_getc(void)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		return dev->getc();
+	}
+
+	return serial_current->getc();
+}
+
+int serial_tstc(void)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		return dev->tstc();
+	}
+
+	return serial_current->tstc();
+}
+
+void serial_putc(const char c)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		dev->putc(c);
+		return;
+	}
+
+	serial_current->putc(c);
+}
+
+void serial_puts(const char *s)
+{
+	if (!serial_current)
+	{
+		struct serial_device *dev = default_serial_console();
+		dev->puts(s);
+		return;
+	}
+
+	serial_current->puts(s);
+}
+
+#endif /* CONFIG_SERIAL_MULTI */