* 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)

5 files changed, 212 insertions, 5 deletions

diff --git a/common/Makefile b/common/Makefile
index 4a36673b44..943da5e475 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -45,7 +45,7 @@ COBJS	= main.o ACEX1K.o altera.o bedbug.o \
 	  env_nand.o env_dataflash.o env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \
 	  flash.o fpga.o \
 	  hush.o kgdb.o lists.o lynxkdi.o memsize.o miiphybb.o miiphyutil.o \
-	  s_record.o soft_i2c.o soft_spi.o spartan2.o \
+	  s_record.o serial.o soft_i2c.o soft_spi.o spartan2.o \
 	  usb.o usb_kbd.o usb_storage.o \
 	  virtex2.o xilinx.o circbuf.o
 
diff --git a/common/cmd_bmp.c b/common/cmd_bmp.c
index c1d4c0b90a..3a971334bb 100644
--- a/common/cmd_bmp.c
+++ b/common/cmd_bmp.c
@@ -123,14 +123,15 @@ static int bmp_info(ulong addr)
  */
 static int bmp_display(ulong addr, int x, int y)
 {
-#ifdef CONFIG_LCD
-    extern int lcd_display_bitmap (ulong, int, int);
+#if defined(CONFIG_LCD)
+	extern int lcd_display_bitmap (ulong, int, int);
 
 	return (lcd_display_bitmap (addr, x, y));
-#endif
-#ifdef CONFIG_VIDEO
+#elif defined(CONFIG_VIDEO)
 	extern int video_display_bitmap (ulong, int, int);
 	return (video_display_bitmap (addr, x, y));
+#else
+# error bmp_display() requires CONFIG_LCD or CONFIG_VIDEO
 #endif
 }
 
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index aaf6de902b..3510561428 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -43,6 +43,7 @@
 #include <command.h>
 #include <environment.h>
 #include <watchdog.h>
+#include <serial.h>
 #include <linux/stddef.h>
 #include <asm/byteorder.h>
 #if (CONFIG_COMMANDS & CFG_CMD_NET)
@@ -216,6 +217,11 @@ int _do_setenv (int flag, int argc, char *argv[])
 			/* Try assigning specified device */
 			if (console_assign (console, argv[2]) < 0)
 				return 1;
+
+#ifdef CONFIG_SERIAL_MULTI
+			if (serial_assign (argv[2]) < 0)
+				return 1;
+#endif
 		}
 
 		/*
diff --git a/common/devices.c b/common/devices.c
index 7c859521a3..b37c99a69b 100644
--- a/common/devices.c
+++ b/common/devices.c
@@ -26,6 +26,7 @@
 #include <stdarg.h>
 #include <malloc.h>
 #include <devices.h>
+#include <serial.h>
 #ifdef CONFIG_LOGBUFFER
 #include <logbuff.h>
 #endif
@@ -194,6 +195,9 @@ int devices_init (void)
 	drv_logbuff_init ();
 #endif
 	drv_system_init ();
+#ifdef CONFIG_SERIAL_MULTI
+	serial_devices_init ();
+#endif
 #ifdef CONFIG_USB_TTY
 	drv_usbtty_init ();
 #endif
diff --git a/common/serial.c b/common/serial.c
new file mode 100644
index 0000000000..f89bb0a7a2
--- /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 */