console: Add drivers/uart

Also move UART related Kconfig options from top-level file.

Change-Id: I4e407977cff6f6506f991600c98d6d264676d3f8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5230
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/Kconfig

@@ -292,20 +292,6 @@ config MMCONF_SUPPORT
 
 source src/console/Kconfig
 
-# This should default to N and be set by SuperI/O drivers that have an UART
-config HAVE_UART_IO_MAPPED
-	bool
-	default y if ARCH_X86
-	default n if ARCH_ARMV7
-
-config HAVE_UART_MEMORY_MAPPED
-	bool
-	default n
-
-config HAVE_UART_SPECIAL
-	bool
-	default n
-
 config HAVE_ACPI_RESUME
 	bool
 	default n

src/drivers/Kconfig

@@ -37,4 +37,5 @@ source src/drivers/sil/Kconfig
 source src/drivers/spi/Kconfig
 source src/drivers/ti/Kconfig
 source src/drivers/trident/Kconfig
+source src/drivers/uart/Kconfig
 source src/drivers/xpowers/Kconfig

src/drivers/Makefile.inc

@@ -30,6 +30,7 @@ subdirs-y += parade
 subdirs-y += realtek
 subdirs-y += sil
 subdirs-y += trident
+subdirs-y += uart
 subdirs-y += usb
 subdirs-y += ics
 subdirs-y += spi

src/drivers/uart/Kconfig

@@ -0,0 +1,14 @@
+# This should default to N and be set by SuperI/O drivers that have an UART
+config HAVE_UART_IO_MAPPED
+	bool
+	depends on !ARCH_ARMV7
+	default y if ARCH_X86
+
+config HAVE_UART_MEMORY_MAPPED
+	bool
+	default n
+
+config HAVE_UART_SPECIAL
+	bool
+	default n
+