Select the i8042 driver for mouse and keyboard only on PC's.

Other architectures have other low-level serial chips.

Make "PC" configuration shorthand (same as "X86 && !EMBEDDED"
right now, but other PC-like architectures may start using it)

arch/i386/Kconfig

@@ -1303,3 +1303,8 @@ config X86_TRAMPOLINE
 	bool
 	depends on SMP || X86_VISWS
 	default y
+
+config PC
+	bool
+	depends on X86 && !EMBEDDED
+	default y

drivers/input/keyboard/Kconfig

@@ -12,10 +12,11 @@ config INPUT_KEYBOARD
 	  If unsure, say Y.
 
 config KEYBOARD_ATKBD
-	tristate "AT keyboard support" if EMBEDDED || !X86 
+	tristate "AT keyboard support" if !PC
 	default y
 	depends on INPUT && INPUT_KEYBOARD
-	select SERIO_I8042
+	select SERIO
+	select SERIO_I8042 if PC
 	help
 	  Say Y here if you want to use a standard AT or PS/2 keyboard. Usually
 	  you'll need this, unless you have a different type keyboard (USB, ADB

drivers/input/mouse/Kconfig

@@ -15,7 +15,8 @@ config MOUSE_PS2
 	tristate "PS/2 mouse"
 	default y
 	depends on INPUT && INPUT_MOUSE
-	select SERIO_I8042
+	select SERIO
+	select SERIO_I8042 if PC
 	---help---
 	  Say Y here if you have a PS/2 mouse connected to your system. This
 	  includes the standard 2 or 3-button PS/2 mouse, as well as PS/2