diff --git a/mainboard/gigabyte/m57sli/Makefile b/mainboard/gigabyte/m57sli/Makefile
index da0d0b945a..926101de6d 100644
--- a/mainboard/gigabyte/m57sli/Makefile
+++ b/mainboard/gigabyte/m57sli/Makefile
@@ -21,6 +21,7 @@
 
 STAGE0_MAINBOARD_SRC := $(src)/lib/clog2.c \
 			$(src)/mainboard/$(MAINBOARDDIR)/stage1.c \
+			$(src)/arch/x86/resourcemap.c \
 			$(src)/arch/x86/stage1_mtrr.c \
 			$(src)/arch/x86/amd/model_fxx/dualcore_id.c \
 			$(src)/arch/x86/amd/model_fxx/stage1.c \
diff --git a/mainboard/gigabyte/m57sli/dts b/mainboard/gigabyte/m57sli/dts
index 41369dcd72..d639149b76 100644
--- a/mainboard/gigabyte/m57sli/dts
+++ b/mainboard/gigabyte/m57sli/dts
@@ -55,5 +55,9 @@
 				/config/("southbridge/nvidia/mcp55/sata.dts");
 			};
 		};
+		ioport@2e {
+			/config/("superio/ite/it8716f/dts");
+			com1enable = "1";
+		};
 	};
 };