Make uart(4) the default serial port driver on i386 and amd64.

The uart(4) driver has the advantage of supporting a wider variety of
hardware on a greater amount of platforms. This driver has already been
the standard on platforms such as ia64, powerpc and sparc64.

I've decided not to change anything on pc98. I'd rather let people from
the pc98 team look at this.

Approved by:	philip (mentor), marcel

UPDATING

@@ -22,6 +22,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 8.x IS SLOW:
 	to maximize performance.  (To disable malloc debugging, run
 	ln -s aj /etc/malloc.conf.)
 
+20080713:
+	The sio(4) driver has been removed from the i386 and amd64
+	kernel configuration files. This means uart(4) is now the
+	default serial port driver on those platforms as well.
+
+	To prevent collisions with the sio(4) driver, the uart(4) driver
+	uses different names for its device nodes. This means the
+	onboard serial port will now most likely be called "ttyu0"
+	instead of "ttyd0". You may need to reconfigure applications to
+	use the new device names.
+
 20080609:
 	The gpt(8) utility has been removed. Use gpart(8) to partition
 	disks instead.

etc/etc.amd64/ttys

@@ -44,10 +44,10 @@ ttyv7	"/usr/libexec/getty Pc"		cons25	on  secure
 ttyv8	"/usr/local/bin/xdm -nodaemon"	xterm	off secure
 # Serial terminals
 # The 'dialup' keyword identifies dialin lines to login, fingerd etc.
-ttyd0	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd1	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd2	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd3	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu0	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu1	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu2	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu3	"/usr/libexec/getty std.9600"	dialup	off secure
 # Dumb console
 dcons	"/usr/libexec/getty std.9600"	vt100	off secure
 # Pseudo terminals

etc/etc.i386/ttys

@@ -44,10 +44,10 @@ ttyv7	"/usr/libexec/getty Pc"		cons25	on  secure
 ttyv8	"/usr/local/bin/xdm -nodaemon"	xterm	off secure
 # Serial terminals
 # The 'dialup' keyword identifies dialin lines to login, fingerd etc.
-ttyd0	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd1	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd2	"/usr/libexec/getty std.9600"	dialup	off secure
-ttyd3	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu0	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu1	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu2	"/usr/libexec/getty std.9600"	dialup	off secure
+ttyu3	"/usr/libexec/getty std.9600"	dialup	off secure
 # Dumb console
 dcons	"/usr/libexec/getty std.9600"	vt100	off secure
 # Pseudo terminals

sys/amd64/conf/GENERIC

@@ -172,7 +172,6 @@ device		pccard		# PC Card (16-bit) bus
 device		cardbus		# CardBus (32-bit) bus
 
 # Serial (COM) ports
-device		sio		# 8250, 16[45]50 based serial ports
 device		uart		# Generic UART driver
 
 # Parallel port

sys/amd64/conf/GENERIC.hints

@@ -16,20 +16,20 @@ hint.psm.0.irq="12"
 hint.vga.0.at="isa"
 hint.sc.0.at="isa"
 hint.sc.0.flags="0x100"
-hint.sio.0.at="isa"
-hint.sio.0.port="0x3F8"
-hint.sio.0.flags="0x10"
-hint.sio.0.irq="4"
-hint.sio.1.at="isa"
-hint.sio.1.port="0x2F8"
-hint.sio.1.irq="3"
-hint.sio.2.at="isa"
-hint.sio.2.disabled="1"
-hint.sio.2.port="0x3E8"
-hint.sio.2.irq="5"
-hint.sio.3.at="isa"
-hint.sio.3.disabled="1"
-hint.sio.3.port="0x2E8"
-hint.sio.3.irq="9"
+hint.uart.0.at="isa"
+hint.uart.0.port="0x3F8"
+hint.uart.0.flags="0x10"
+hint.uart.0.irq="4"
+hint.uart.1.at="isa"
+hint.uart.1.port="0x2F8"
+hint.uart.1.irq="3"
+hint.uart.2.at="isa"
+hint.uart.2.disabled="1"
+hint.uart.2.port="0x3E8"
+hint.uart.2.irq="5"
+hint.uart.3.at="isa"
+hint.uart.3.disabled="1"
+hint.uart.3.port="0x2E8"
+hint.uart.3.irq="9"
 hint.ppc.0.at="isa"
 hint.ppc.0.irq="7"

sys/i386/conf/GENERIC

@@ -184,7 +184,6 @@ device		pccard		# PC Card (16-bit) bus
 device		cardbus		# CardBus (32-bit) bus
 
 # Serial (COM) ports
-device		sio		# 8250, 16[45]50 based serial ports
 device		uart		# Generic UART driver
 
 # Parallel port

sys/i386/conf/GENERIC.hints

@@ -32,21 +32,21 @@ hint.sc.0.at="isa"
 hint.sc.0.flags="0x100"
 hint.apm.0.disabled="1"
 hint.apm.0.flags="0x20"
-hint.sio.0.at="isa"
-hint.sio.0.port="0x3F8"
-hint.sio.0.flags="0x10"
-hint.sio.0.irq="4"
-hint.sio.1.at="isa"
-hint.sio.1.port="0x2F8"
-hint.sio.1.irq="3"
-hint.sio.2.at="isa"
-hint.sio.2.disabled="1"
-hint.sio.2.port="0x3E8"
-hint.sio.2.irq="5"
-hint.sio.3.at="isa"
-hint.sio.3.disabled="1"
-hint.sio.3.port="0x2E8"
-hint.sio.3.irq="9"
+hint.uart.0.at="isa"
+hint.uart.0.port="0x3F8"
+hint.uart.0.flags="0x10"
+hint.uart.0.irq="4"
+hint.uart.1.at="isa"
+hint.uart.1.port="0x2F8"
+hint.uart.1.irq="3"
+hint.uart.2.at="isa"
+hint.uart.2.disabled="1"
+hint.uart.2.port="0x3E8"
+hint.uart.2.irq="5"
+hint.uart.3.at="isa"
+hint.uart.3.disabled="1"
+hint.uart.3.port="0x2E8"
+hint.uart.3.irq="9"
 hint.ppc.0.at="isa"
 hint.ppc.0.irq="7"
 hint.ed.0.at="isa"