kbuild: automatically include northbridges

This change switches all northbridge vendors and southbridges
to be autoincluded by Makefile.inc, rather than having to be
mentioned explicitly in northbridge/Makefile.inc or in
northbridge/<vendor>/Makefile.inc.

This means, vendor and northbridge directories are now "drop
in", e.g. be placed in the coreboot directory hierarchy
without having to modify any higher level coreboot files.

The long term plan is to enable out of tree components to be
built with a given coreboot version (given that the API did not
change).

Change-Id: I8468154dbfaaaffcba9fda27ba2d7b9049ad5c19
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/9800
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

5 files changed, 16 insertions, 4 deletions

diff --git a/src/northbridge/via/Makefile.inc b/src/northbridge/via/Makefile.inc
deleted file mode 100644
index b3d595e9b9..0000000000
--- a/src/northbridge/via/Makefile.inc
+++ /dev/null
@@ -1,4 +0,0 @@
-subdirs-$(CONFIG_NORTHBRIDGE_VIA_CN700) += cn700
-subdirs-$(CONFIG_NORTHBRIDGE_VIA_CX700) += cx700
-subdirs-$(CONFIG_NORTHBRIDGE_VIA_VX800) += vx800
-subdirs-$(CONFIG_NORTHBRIDGE_VIA_VX900) += vx900
diff --git a/src/northbridge/via/cn700/Makefile.inc b/src/northbridge/via/cn700/Makefile.inc
index ebe915f549..9feddd506a 100644
--- a/src/northbridge/via/cn700/Makefile.inc
+++ b/src/northbridge/via/cn700/Makefile.inc
@@ -18,6 +18,10 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
+ifeq ($(CONFIG_NORTHBRIDGE_VIA_CN700),y)
+
 ramstage-y += northbridge.c
 ramstage-y += agp.c
 ramstage-y += vga.c
+
+endif
diff --git a/src/northbridge/via/cx700/Makefile.inc b/src/northbridge/via/cx700/Makefile.inc
index 03b52c6ff9..57bf2b5230 100644
--- a/src/northbridge/via/cx700/Makefile.inc
+++ b/src/northbridge/via/cx700/Makefile.inc
@@ -17,6 +17,8 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
+ifeq ($(CONFIG_NORTHBRIDGE_VIA_CX700),y)
+
 ramstage-y += reset.c
 ramstage-y += northbridge.c
 
@@ -24,3 +26,5 @@ ramstage-y += agp.c
 ramstage-y += lpc.c
 ramstage-y += sata.c
 ramstage-y += vga.c
+
+endif
diff --git a/src/northbridge/via/vx800/Makefile.inc b/src/northbridge/via/vx800/Makefile.inc
index 2305db9b45..951fc7121d 100644
--- a/src/northbridge/via/vx800/Makefile.inc
+++ b/src/northbridge/via/vx800/Makefile.inc
@@ -18,6 +18,8 @@
 ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 ##
 
+ifeq ($(CONFIG_NORTHBRIDGE_VIA_VX800),y)
+
 ramstage-y += northbridge.c
 ramstage-y += vga.c
 ramstage-y += lpc.c
@@ -25,3 +27,5 @@ ramstage-y += ide.c
 
 chipset_bootblock_inc += $(src)/northbridge/via/vx800/romstrap.inc
 bootblock-y += romstrap.ld
+
+endif
diff --git a/src/northbridge/via/vx900/Makefile.inc b/src/northbridge/via/vx900/Makefile.inc
index b51030944a..6178c114ab 100644
--- a/src/northbridge/via/vx900/Makefile.inc
+++ b/src/northbridge/via/vx900/Makefile.inc
@@ -17,6 +17,8 @@
 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##
 
+ifeq ($(CONFIG_NORTHBRIDGE_VIA_VX900),y)
+
 romstage-y += pci_util.c
 romstage-y += early_smbus.c
 romstage-y += early_vx900.c
@@ -46,3 +48,5 @@ ramstage-y += ./../../../drivers/pc80/vga/vga_io.c
 
 chipset_bootblock_inc += $(src)/northbridge/via/vx900/romstrap.inc
 bootblock-y += romstrap.ld
+
+endif