diff --git a/src/southbridge/intel/i82801gx/Kconfig b/src/southbridge/intel/i82801gx/Kconfig
index 7e48848c7b..fbae6452eb 100644
--- a/src/southbridge/intel/i82801gx/Kconfig
+++ b/src/southbridge/intel/i82801gx/Kconfig
@@ -28,6 +28,7 @@ config SOUTHBRIDGE_INTEL_I82801GX
 	select SOUTHBRIDGE_INTEL_COMMON_SPI
 	select HAVE_INTEL_CHIPSET_LOCKDOWN
 	select SOUTHBRIDGE_INTEL_COMMON_RCBA_PIRQ
+	select INTEL_HAS_TOP_SWAP
 
 if SOUTHBRIDGE_INTEL_I82801GX
 
@@ -43,4 +44,9 @@ config HPET_MIN_TICKS
 	hex
 	default 0x80
 
+config INTEL_TOP_SWAP_BOOTBLOCK_SIZE
+	hex
+	# Always 64K, all other options are invalid
+	default 0x10000
+
 endif