superio/smsc/lpc47n207: Hook into build system

Provide proper Makefile and Kconfig components so
that this superio is built as object code. Select
superio component in mainboard Kconfig's to bring
in the link-time symbols and thereby removing the
need for .c inclusion.

N.B. The LPC47N207 Super I/O does not physically exist
on these boards. The Super I/O is found on external LPC
debug card hardware and so should really be made selectable.
However, this is beyond the scope of this specific fix, that
rids us of .c inclusions in romstage.c

Change-Id: I451c3a81c4b5beca1ed65e27467a7393d2521dae
Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-on: http://review.coreboot.org/8084
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
diff --git a/src/mainboard/samsung/lumpy/Kconfig b/src/mainboard/samsung/lumpy/Kconfig
index baf0eee..1b20452 100644
--- a/src/mainboard/samsung/lumpy/Kconfig
+++ b/src/mainboard/samsung/lumpy/Kconfig
@@ -13,6 +13,9 @@
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SUPERIO_SMSC_MEC1308
+# LPC47N207 selected for external LPC card
+# not on board, should be made selectable.
+	select SUPERIO_SMSC_LPC47N207
 	select DRIVERS_GENERIC_IOAPIC
 	select INTEL_INT15
 	select HAVE_MRC
diff --git a/src/mainboard/samsung/lumpy/romstage.c b/src/mainboard/samsung/lumpy/romstage.c
index b356fa8..8568f84 100644
--- a/src/mainboard/samsung/lumpy/romstage.c
+++ b/src/mainboard/samsung/lumpy/romstage.c
@@ -45,7 +45,6 @@
 #include "gpio.h"
 #if CONFIG_DRIVERS_UART_8250IO
 #include <superio/smsc/lpc47n207/lpc47n207.h>
-#include "superio/smsc/lpc47n207/early_serial.c"
 #endif
 #if CONFIG_CHROMEOS
 #include <vendorcode/google/chromeos/chromeos.h>
diff --git a/src/mainboard/samsung/stumpy/Kconfig b/src/mainboard/samsung/stumpy/Kconfig
index 17484a9..1b65eae 100644
--- a/src/mainboard/samsung/stumpy/Kconfig
+++ b/src/mainboard/samsung/stumpy/Kconfig
@@ -11,6 +11,9 @@
 	select NORTHBRIDGE_INTEL_SANDYBRIDGE
 	select SOUTHBRIDGE_INTEL_BD82X6X
 	select SUPERIO_ITE_IT8772F
+# LPC47N207 selected for external LPC card
+# not on board, should be made selectable.
+	select SUPERIO_SMSC_LPC47N207
 	select HAVE_MRC
 
 	select INTEL_INT15
diff --git a/src/mainboard/samsung/stumpy/romstage.c b/src/mainboard/samsung/stumpy/romstage.c
index 1462132..2ed185b 100644
--- a/src/mainboard/samsung/stumpy/romstage.c
+++ b/src/mainboard/samsung/stumpy/romstage.c
@@ -45,7 +45,6 @@
 #include "gpio.h"
 #if CONFIG_DRIVERS_UART_8250IO
 #include <superio/smsc/lpc47n207/lpc47n207.h>
-#include "superio/smsc/lpc47n207/early_serial.c"
 #endif
 #if CONFIG_CHROMEOS
 #include <vendorcode/google/chromeos/chromeos.h>
diff --git a/src/superio/smsc/Kconfig b/src/superio/smsc/Kconfig
index 6aaa112..34bc60c 100644
--- a/src/superio/smsc/Kconfig
+++ b/src/superio/smsc/Kconfig
@@ -30,6 +30,8 @@
 	bool
 config SUPERIO_SMSC_LPC47M15X
 	bool
+config SUPERIO_SMSC_LPC47N207
+	bool
 config SUPERIO_SMSC_LPC47N217
 	bool
 config SUPERIO_SMSC_LPC47N227
diff --git a/src/superio/smsc/Makefile.inc b/src/superio/smsc/Makefile.inc
index a89b6ac..caa2c72 100644
--- a/src/superio/smsc/Makefile.inc
+++ b/src/superio/smsc/Makefile.inc
@@ -24,6 +24,7 @@
 subdirs-y += lpc47b397
 subdirs-y += lpc47m10x
 subdirs-y += lpc47m15x
+subdirs-y += lpc47n207
 subdirs-y += lpc47n217
 subdirs-y += lpc47n227
 subdirs-y += sio10n268
diff --git a/src/superio/smsc/lpc47n207/Makefile.inc b/src/superio/smsc/lpc47n207/Makefile.inc
new file mode 100644
index 0000000..08e1387
--- /dev/null
+++ b/src/superio/smsc/lpc47n207/Makefile.inc
@@ -0,0 +1,21 @@
+##
+## This file is part of the coreboot project.
+##
+## Copyright (C) 2014 Edward O'Callaghan <eocallaghan@alterapraxis.com>
+##
+## 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+##
+
+romstage-$(CONFIG_SUPERIO_SMSC_LPC47N207) += early_serial.c
diff --git a/src/superio/smsc/lpc47n207/early_serial.c b/src/superio/smsc/lpc47n207/early_serial.c
index e2ae49d..847fe97 100644
--- a/src/superio/smsc/lpc47n207/early_serial.c
+++ b/src/superio/smsc/lpc47n207/early_serial.c
@@ -17,6 +17,12 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include <arch/io.h>
+#include <device/pnp.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include "lpc47n207.h"
+
 /*
  * This code tries to discover the SMSC LPC47N207 superio chip which can be
  * connected over an LPC dongle. The chip could be bootstrap mapped to one of
diff --git a/src/superio/smsc/lpc47n207/lpc47n207.h b/src/superio/smsc/lpc47n207/lpc47n207.h
index 69689a4..a122465 100644
--- a/src/superio/smsc/lpc47n207/lpc47n207.h
+++ b/src/superio/smsc/lpc47n207/lpc47n207.h
@@ -17,9 +17,12 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef SUPERIO_SMSC_LPC47N207_LPC47N207_H
-#define SUPERIO_SMSC_LPC47N207_LPC47N207_H
+#ifndef SUPERIO_SMSC_LPC47N207_H
+#define SUPERIO_SMSC_LPC47N207_H
 
-extern void try_enabling_LPC47N207_uart(void);
+#include <arch/io.h>
+#include <stdint.h>
 
-#endif
+void try_enabling_LPC47N207_uart(void);
+
+#endif /* SUPERIO_SMSC_LPC47N207_H */