diff --git a/src/mainboard/google/link/Makefile.inc b/src/mainboard/google/link/Makefile.inc
index c366b08ac9..b79e4d3952 100644
--- a/src/mainboard/google/link/Makefile.inc
+++ b/src/mainboard/google/link/Makefile.inc
@@ -42,3 +42,4 @@ $(SPD_BIN): $(SPD_DEPS)
 cbfs-files-y += spd.bin
 spd.bin-file := $(SPD_BIN)
 spd.bin-type := spd
+romstage-y += gpio.c
diff --git a/src/mainboard/google/link/gpio.h b/src/mainboard/google/link/gpio.c
similarity index 100%
rename from src/mainboard/google/link/gpio.h
rename to src/mainboard/google/link/gpio.c
diff --git a/src/mainboard/google/link/romstage.c b/src/mainboard/google/link/romstage.c
index 2f40ba5186..5710ccd96a 100644
--- a/src/mainboard/google/link/romstage.c
+++ b/src/mainboard/google/link/romstage.c
@@ -29,13 +29,12 @@
 #include <console/console.h>
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
-#include <southbridge/intel/bd82x6x/pch.h>
 #include <southbridge/intel/bd82x6x/gpio.h>
+#include <southbridge/intel/bd82x6x/pch.h>
 #include "ec/google/chromeec/ec.h"
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
-#include "gpio.h"
 #include <tpm.h>
 #include <cbfs.h>
 
diff --git a/src/mainboard/google/parrot/Makefile.inc b/src/mainboard/google/parrot/Makefile.inc
index 0d6ef2ef76..78e5b986d9 100644
--- a/src/mainboard/google/parrot/Makefile.inc
+++ b/src/mainboard/google/parrot/Makefile.inc
@@ -17,3 +17,4 @@ ramstage-y += ec.c
 
 romstage-y += chromeos.c
 ramstage-y += chromeos.c
+romstage-y += gpio.c
diff --git a/src/mainboard/google/parrot/gpio.h b/src/mainboard/google/parrot/gpio.c
similarity index 100%
rename from src/mainboard/google/parrot/gpio.h
rename to src/mainboard/google/parrot/gpio.c
diff --git a/src/mainboard/google/parrot/romstage.c b/src/mainboard/google/parrot/romstage.c
index 60c3f010f8..030f7c467e 100644
--- a/src/mainboard/google/parrot/romstage.c
+++ b/src/mainboard/google/parrot/romstage.c
@@ -29,11 +29,9 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
-#include "gpio.h"
 #include <cbfs.h>
 #include <tpm.h>
 #include "ec/compal/ene932/ec.h"
diff --git a/src/mainboard/google/stout/Makefile.inc b/src/mainboard/google/stout/Makefile.inc
index 256948d9b5..f151e4f67c 100644
--- a/src/mainboard/google/stout/Makefile.inc
+++ b/src/mainboard/google/stout/Makefile.inc
@@ -22,3 +22,4 @@ smm-$(CONFIG_HAVE_SMI_HANDLER) += mainboard_smi.c
 smm-$(CONFIG_HAVE_SMI_HANDLER) += ec.c
 
 SRC_ROOT = $(src)/mainboard/google/stout
+romstage-y += gpio.c
diff --git a/src/mainboard/google/stout/gpio.h b/src/mainboard/google/stout/gpio.c
similarity index 100%
rename from src/mainboard/google/stout/gpio.h
rename to src/mainboard/google/stout/gpio.c
diff --git a/src/mainboard/google/stout/romstage.c b/src/mainboard/google/stout/romstage.c
index 99979e9e90..d7046a3ccb 100644
--- a/src/mainboard/google/stout/romstage.c
+++ b/src/mainboard/google/stout/romstage.c
@@ -29,11 +29,9 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
-#include "gpio.h"
 #include <bootmode.h>
 #include <tpm.h>
 #include <cbfs.h>
diff --git a/src/mainboard/intel/emeraldlake2/Makefile.inc b/src/mainboard/intel/emeraldlake2/Makefile.inc
index c29b100197..b3bf53f028 100644
--- a/src/mainboard/intel/emeraldlake2/Makefile.inc
+++ b/src/mainboard/intel/emeraldlake2/Makefile.inc
@@ -15,3 +15,4 @@
 
 romstage-y += chromeos.c
 ramstage-y += chromeos.c
+romstage-y += gpio.c
diff --git a/src/mainboard/intel/emeraldlake2/gpio.h b/src/mainboard/intel/emeraldlake2/gpio.c
similarity index 100%
rename from src/mainboard/intel/emeraldlake2/gpio.h
rename to src/mainboard/intel/emeraldlake2/gpio.c
diff --git a/src/mainboard/intel/emeraldlake2/romstage.c b/src/mainboard/intel/emeraldlake2/romstage.c
index 145526a060..8528bffc03 100644
--- a/src/mainboard/intel/emeraldlake2/romstage.c
+++ b/src/mainboard/intel/emeraldlake2/romstage.c
@@ -30,12 +30,10 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
 #include <tpm.h>
-#include "gpio.h"
 
 #define SIO_PORT 0x164e
 
diff --git a/src/mainboard/kontron/ktqm77/Makefile.inc b/src/mainboard/kontron/ktqm77/Makefile.inc
new file mode 100644
index 0000000000..3dae61e8a8
--- /dev/null
+++ b/src/mainboard/kontron/ktqm77/Makefile.inc
@@ -0,0 +1 @@
+romstage-y += gpio.c
diff --git a/src/mainboard/kontron/ktqm77/gpio.h b/src/mainboard/kontron/ktqm77/gpio.c
similarity index 100%
rename from src/mainboard/kontron/ktqm77/gpio.h
rename to src/mainboard/kontron/ktqm77/gpio.c
diff --git a/src/mainboard/kontron/ktqm77/romstage.c b/src/mainboard/kontron/ktqm77/romstage.c
index 197b460e49..8f3f900464 100644
--- a/src/mainboard/kontron/ktqm77/romstage.c
+++ b/src/mainboard/kontron/ktqm77/romstage.c
@@ -29,11 +29,9 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
-#include "gpio.h"
 
 void pch_enable_lpc(void)
 {
diff --git a/src/mainboard/samsung/lumpy/Makefile.inc b/src/mainboard/samsung/lumpy/Makefile.inc
index d83f26dd80..26526c9377 100644
--- a/src/mainboard/samsung/lumpy/Makefile.inc
+++ b/src/mainboard/samsung/lumpy/Makefile.inc
@@ -27,3 +27,4 @@ $(SPD_BIN):
 cbfs-files-y += spd.bin
 spd.bin-file := $(SPD_BIN)
 spd.bin-type := spd
+romstage-y += gpio.c
diff --git a/src/mainboard/samsung/lumpy/gpio.h b/src/mainboard/samsung/lumpy/gpio.c
similarity index 100%
rename from src/mainboard/samsung/lumpy/gpio.h
rename to src/mainboard/samsung/lumpy/gpio.c
diff --git a/src/mainboard/samsung/lumpy/romstage.c b/src/mainboard/samsung/lumpy/romstage.c
index b91573bb42..791afe97bf 100644
--- a/src/mainboard/samsung/lumpy/romstage.c
+++ b/src/mainboard/samsung/lumpy/romstage.c
@@ -32,12 +32,10 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
 #include "option_table.h"
-#include "gpio.h"
 #if CONFIG_DRIVERS_UART_8250IO
 #include <superio/smsc/lpc47n207/lpc47n207.h>
 #endif
diff --git a/src/mainboard/samsung/stumpy/Makefile.inc b/src/mainboard/samsung/stumpy/Makefile.inc
index c29b100197..b3bf53f028 100644
--- a/src/mainboard/samsung/stumpy/Makefile.inc
+++ b/src/mainboard/samsung/stumpy/Makefile.inc
@@ -15,3 +15,4 @@
 
 romstage-y += chromeos.c
 ramstage-y += chromeos.c
+romstage-y += gpio.c
diff --git a/src/mainboard/samsung/stumpy/gpio.h b/src/mainboard/samsung/stumpy/gpio.c
similarity index 100%
rename from src/mainboard/samsung/stumpy/gpio.h
rename to src/mainboard/samsung/stumpy/gpio.c
diff --git a/src/mainboard/samsung/stumpy/romstage.c b/src/mainboard/samsung/stumpy/romstage.c
index 2caf23e86e..87528af5ca 100644
--- a/src/mainboard/samsung/stumpy/romstage.c
+++ b/src/mainboard/samsung/stumpy/romstage.c
@@ -32,12 +32,10 @@
 #include <northbridge/intel/sandybridge/sandybridge.h>
 #include <northbridge/intel/sandybridge/raminit.h>
 #include <southbridge/intel/bd82x6x/pch.h>
-#include <southbridge/intel/bd82x6x/gpio.h>
 #include <arch/cpu.h>
 #include <cpu/x86/msr.h>
 #include <halt.h>
 #include <tpm.h>
-#include "gpio.h"
 #if CONFIG_DRIVERS_UART_8250IO
 #include <superio/smsc/lpc47n207/lpc47n207.h>
 #endif