-#subdirs-y += e7501
-#subdirs-y += e7520
-#subdirs-y += e7525
-#subdirs-y += i3100
-subdirs-y += i440bx
-subdirs-y += i82810
-#subdirs-y += i82830
-#subdirs-y += i855gme
-#subdirs-y += i855pm
-subdirs-y += i945
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7501) += e7501
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7505) += e7505
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7520) += e7520
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7525) += e7525
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I3100) += i3100
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I440BX) += i440bx
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I440LX) += i440lx
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I82810) += i82810
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I82830) += i82830
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I855) += i855
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I945) += i945
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_SCH) += sch
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I5000) += i5000
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE) += sandybridge
+subdirs-$(CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE) += sandybridge