southbridge/intel: Create common IFD Kconfig and Makefile

We've got a lot of duplicated code to set up the IFD/ME/TXE/GBE/ETC.
This is the start of creating a common interface for all of them.

This also allows us to reduce the chipset dependencies for CBFS_SIZE.

Change-Id: Iff08f74305d5ce545b5863915359eeb91eab0208
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/10613
Tested-by: build bot (Jenkins)
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/Kconfig b/src/Kconfig
index 91a3b29f..94b3508 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -338,10 +338,10 @@
 
 config CBFS_SIZE
 	hex "Size of CBFS filesystem in ROM"
-	default 0x100000 if NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_SANDYBRIDGE || \
+	default 0x100000 if HAVE_INTEL_FIRMWARE || \
+	  NORTHBRIDGE_INTEL_GM45 || NORTHBRIDGE_INTEL_SANDYBRIDGE || \
 	  NORTHBRIDGE_INTEL_IVYBRIDGE || NORTHBRIDGE_INTEL_IVYBRIDGE_NATIVE || \
-	  NORTHBRIDGE_INTEL_SANDYBRIDGE_NATIVE || NORTHBRIDGE_INTEL_FSP_SANDYBRIDGE || \
-	  NORTHBRIDGE_INTEL_FSP_IVYBRIDGE || NORTHBRIDGE_INTEL_HASWELL || \
+	  NORTHBRIDGE_INTEL_SANDYBRIDGE_NATIVE || \
 	  NORTHBRIDGE_INTEL_NEHALEM || SOC_INTEL_BAYTRAIL || SOC_INTEL_BRASWELL || \
 	  SOC_INTEL_BROADWELL
 	default 0x200000 if SOC_INTEL_FSP_BAYTRAIL
@@ -378,7 +378,9 @@
 source "src/ec/*/*/Kconfig"
 source "src/drivers/intel/fsp1_0/Kconfig"
 
+source "src/southbridge/intel/common/firmware/Kconfig"
 source "src/vendorcode/*/Kconfig"
+
 source "src/arch/*/Kconfig"
 
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