diff --git a/simulator/simulator/efifeatures.h b/simulator/simulator/efifeatures.h
index c9940e7338..ea11381d45 100644
--- a/simulator/simulator/efifeatures.h
+++ b/simulator/simulator/efifeatures.h
@@ -34,6 +34,12 @@
 
 #define EFI_GPIO_HARDWARE FALSE
 
+#define BOARD_TLE6240_COUNT         0
+#define BOARD_MC33972_COUNT			0
+#define BOARD_TLE8888_COUNT 	0
+
+#define BOARD_EXT_GPIOCHIPS			(BOARD_TLE6240_COUNT + BOARD_MC33972_COUNT + BOARD_TLE8888_COUNT)
+
 #define EFI_CLOCK_LOCKS FALSE
 
 #define EFI_FSIO TRUE
diff --git a/unit_tests/efifeatures.h b/unit_tests/efifeatures.h
index 278b035bdb..2e2e065932 100644
--- a/unit_tests/efifeatures.h
+++ b/unit_tests/efifeatures.h
@@ -21,7 +21,7 @@
 #define EFI_ENABLE_CRITICAL_ENGINE_STOP TRUE
 #define EFI_ENABLE_ENGINE_WARNING TRUE
 
-#define EFI_GPIO_HARDWARE FALSE
+#define EFI_GPIO_HARDWARE TRUE
 
 #define FUEL_MATH_EXTREME_LOGGING FALSE
 
diff --git a/unit_tests/global.h b/unit_tests/global.h
index 3b0516e55d..f90ac9f670 100644
--- a/unit_tests/global.h
+++ b/unit_tests/global.h
@@ -17,6 +17,10 @@
 
 #include "boards.h"
 
+typedef uint32_t iomode_t;
+typedef uint32_t ioportid_t;
+typedef uint32_t ioportmask_t;
+
 //#define chThdGetSelfX() 0
 //#define getRemainingStack(x) (999999)
 #define getCurrentRemainingStack() (999999)