diff --git a/src/mainboard/google/mancomb/Kconfig b/src/mainboard/google/mancomb/Kconfig
index 3fbe75287d..0e4a49fc37 100644
--- a/src/mainboard/google/mancomb/Kconfig
+++ b/src/mainboard/google/mancomb/Kconfig
@@ -39,10 +39,18 @@ config AMD_FWM_POSITION_INDEX
 	help
 	  TODO: might need to be adapted for better placement of files in cbfs
 
+config VARIANT_DIR
+	string
+	default "mancomb" if BOARD_GOOGLE_MANCOMB
+
 config DEVICETREE
 	string
 	default "variants/baseboard/devicetree.cb"
 
+config OVERRIDE_DEVICETREE
+	string
+	default "variants/\$(CONFIG_VARIANT_DIR)/overridetree.cb"
+
 config MAINBOARD_FAMILY
 	string
 	default "Google_Mancomb"
diff --git a/src/mainboard/google/mancomb/Makefile.inc b/src/mainboard/google/mancomb/Makefile.inc
index d16a87420d..7d2b1355ad 100644
--- a/src/mainboard/google/mancomb/Makefile.inc
+++ b/src/mainboard/google/mancomb/Makefile.inc
@@ -6,4 +6,7 @@ ramstage-y += mainboard.c
 ramstage-$(CONFIG_CHROMEOS) += chromeos.c
 
 subdirs-y += variants/baseboard
+subdirs-y += variants/$(VARIANT_DIR)
+
 CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/baseboard/include
+CPPFLAGS_common += -I$(src)/mainboard/$(MAINBOARDDIR)/variants/$(VARIANT_DIR)/include
diff --git a/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb b/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb
new file mode 100644
index 0000000000..eae9425bf7
--- /dev/null
+++ b/src/mainboard/google/mancomb/variants/mancomb/overridetree.cb
@@ -0,0 +1,4 @@
+chip soc/amd/cezanne
+	device domain 0 on
+	end # domain
+end # chip soc/amd/cezanne