diff --git a/src/ec/system76/ec/Makefile.inc b/src/ec/system76/ec/Makefile.inc
index 110b997e9a..9808e297d6 100644
--- a/src/ec/system76/ec/Makefile.inc
+++ b/src/ec/system76/ec/Makefile.inc
@@ -2,6 +2,9 @@
 ifeq ($(CONFIG_EC_SYSTEM76_EC),y)
 
 all-y += system76_ec.c
+
+ramstage-y += smbios.c
+
 smm-$(CONFIG_DEBUG_SMI) += system76_ec.c
 
 endif
diff --git a/src/ec/system76/ec/smbios.c b/src/ec/system76/ec/smbios.c
new file mode 100644
index 0000000000..e55d5f0965
--- /dev/null
+++ b/src/ec/system76/ec/smbios.c
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <smbios.h>
+
+smbios_wakeup_type smbios_system_wakeup_type(void)
+{
+	// TODO: Read wake source from EC.
+	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
+}
diff --git a/src/mainboard/system76/addw1/ramstage.c b/src/mainboard/system76/addw1/ramstage.c
index 376849f5a2..ca6f64b158 100644
--- a/src/mainboard/system76/addw1/ramstage.c
+++ b/src/mainboard/system76/addw1/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <variant/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/adl/ramstage.c b/src/mainboard/system76/adl/ramstage.c
index 86ce82119e..c767f2dfe6 100644
--- a/src/mainboard/system76/adl/ramstage.c
+++ b/src/mainboard/system76/adl/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <mainboard/gpio.h>
 #include <soc/ramstage.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 void mainboard_silicon_init_params(FSP_S_CONFIG *params)
 {
diff --git a/src/mainboard/system76/bonw14/ramstage.c b/src/mainboard/system76/bonw14/ramstage.c
index 839b84af1d..43ee54f50a 100644
--- a/src/mainboard/system76/bonw14/ramstage.c
+++ b/src/mainboard/system76/bonw14/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <mainboard/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/cml-u/ramstage.c b/src/mainboard/system76/cml-u/ramstage.c
index 839b84af1d..43ee54f50a 100644
--- a/src/mainboard/system76/cml-u/ramstage.c
+++ b/src/mainboard/system76/cml-u/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <mainboard/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/gaze15/ramstage.c b/src/mainboard/system76/gaze15/ramstage.c
index 376849f5a2..ca6f64b158 100644
--- a/src/mainboard/system76/gaze15/ramstage.c
+++ b/src/mainboard/system76/gaze15/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <variant/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/oryp5/ramstage.c b/src/mainboard/system76/oryp5/ramstage.c
index 839b84af1d..43ee54f50a 100644
--- a/src/mainboard/system76/oryp5/ramstage.c
+++ b/src/mainboard/system76/oryp5/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <mainboard/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/oryp6/ramstage.c b/src/mainboard/system76/oryp6/ramstage.c
index 376849f5a2..ca6f64b158 100644
--- a/src/mainboard/system76/oryp6/ramstage.c
+++ b/src/mainboard/system76/oryp6/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <variant/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/tgl-h/ramstage.c b/src/mainboard/system76/tgl-h/ramstage.c
index 49b9934aed..480c49c4d1 100644
--- a/src/mainboard/system76/tgl-h/ramstage.c
+++ b/src/mainboard/system76/tgl-h/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <soc/ramstage.h>
 #include <variant/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/tgl-u/ramstage.c b/src/mainboard/system76/tgl-u/ramstage.c
index a01391a685..a3b12bb1f2 100644
--- a/src/mainboard/system76/tgl-u/ramstage.c
+++ b/src/mainboard/system76/tgl-u/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <mainboard/gpio.h>
 #include <soc/ramstage.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {
diff --git a/src/mainboard/system76/whl-u/ramstage.c b/src/mainboard/system76/whl-u/ramstage.c
index 839b84af1d..43ee54f50a 100644
--- a/src/mainboard/system76/whl-u/ramstage.c
+++ b/src/mainboard/system76/whl-u/ramstage.c
@@ -2,12 +2,6 @@
 
 #include <device/device.h>
 #include <mainboard/gpio.h>
-#include <smbios.h>
-
-smbios_wakeup_type smbios_system_wakeup_type(void)
-{
-	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
-}
 
 static void mainboard_init(void *chip_info)
 {