diff --git a/src/mainboard/system76/addw1/ramstage.c b/src/mainboard/system76/addw1/ramstage.c
index ca6f64b158..376849f5a2 100644
--- a/src/mainboard/system76/addw1/ramstage.c
+++ b/src/mainboard/system76/addw1/ramstage.c
@@ -2,6 +2,12 @@
 
 #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-p/ramstage.c b/src/mainboard/system76/adl-p/ramstage.c
index c767f2dfe6..86ce82119e 100644
--- a/src/mainboard/system76/adl-p/ramstage.c
+++ b/src/mainboard/system76/adl-p/ramstage.c
@@ -2,6 +2,12 @@
 
 #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 43ee54f50a..839b84af1d 100644
--- a/src/mainboard/system76/bonw14/ramstage.c
+++ b/src/mainboard/system76/bonw14/ramstage.c
@@ -2,6 +2,12 @@
 
 #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 43ee54f50a..839b84af1d 100644
--- a/src/mainboard/system76/cml-u/ramstage.c
+++ b/src/mainboard/system76/cml-u/ramstage.c
@@ -2,6 +2,12 @@
 
 #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 ca6f64b158..376849f5a2 100644
--- a/src/mainboard/system76/gaze15/ramstage.c
+++ b/src/mainboard/system76/gaze15/ramstage.c
@@ -2,6 +2,12 @@
 
 #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/gaze16/ramstage.c b/src/mainboard/system76/gaze16/ramstage.c
index 6963771d69..63b2f90072 100644
--- a/src/mainboard/system76/gaze16/ramstage.c
+++ b/src/mainboard/system76/gaze16/ramstage.c
@@ -1,9 +1,15 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <smbios.h>
 #include <soc/ramstage.h>
 #include <variant/gpio.h>
 #include "variant.h"
 
+smbios_wakeup_type smbios_system_wakeup_type(void)
+{
+	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
+}
+
 void mainboard_silicon_init_params(FSP_S_CONFIG *params)
 {
 	variant_silicon_init_params(params);
diff --git a/src/mainboard/system76/gaze17/ramstage.c b/src/mainboard/system76/gaze17/ramstage.c
index 82b0e67488..44c6097234 100644
--- a/src/mainboard/system76/gaze17/ramstage.c
+++ b/src/mainboard/system76/gaze17/ramstage.c
@@ -1,8 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <smbios.h>
 #include <soc/ramstage.h>
 #include <variant/gpio.h>
 
+smbios_wakeup_type smbios_system_wakeup_type(void)
+{
+	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
+}
+
 void mainboard_silicon_init_params(FSP_S_CONFIG *params)
 {
 	params->CnviRfResetPinMux = 0x194CE404; // GPP_F4
diff --git a/src/mainboard/system76/kbl-u/ramstage.c b/src/mainboard/system76/kbl-u/ramstage.c
index 43ee54f50a..839b84af1d 100644
--- a/src/mainboard/system76/kbl-u/ramstage.c
+++ b/src/mainboard/system76/kbl-u/ramstage.c
@@ -2,6 +2,12 @@
 
 #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/lemp9/ramstage.c b/src/mainboard/system76/lemp9/ramstage.c
index aef7f71a0e..508d68f125 100644
--- a/src/mainboard/system76/lemp9/ramstage.c
+++ b/src/mainboard/system76/lemp9/ramstage.c
@@ -1,8 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <smbios.h>
 #include <soc/ramstage.h>
 #include "gpio.h"
 
+smbios_wakeup_type smbios_system_wakeup_type(void)
+{
+	return SMBIOS_WAKEUP_TYPE_POWER_SWITCH;
+}
+
 void mainboard_silicon_init_params(FSPS_UPD *supd)
 {
 	/* Configure pads prior to SiliconInit() in case there's any
diff --git a/src/mainboard/system76/oryp5/ramstage.c b/src/mainboard/system76/oryp5/ramstage.c
index 43ee54f50a..839b84af1d 100644
--- a/src/mainboard/system76/oryp5/ramstage.c
+++ b/src/mainboard/system76/oryp5/ramstage.c
@@ -2,6 +2,12 @@
 
 #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 ca6f64b158..376849f5a2 100644
--- a/src/mainboard/system76/oryp6/ramstage.c
+++ b/src/mainboard/system76/oryp6/ramstage.c
@@ -2,6 +2,12 @@
 
 #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/oryp8/ramstage.c b/src/mainboard/system76/oryp8/ramstage.c
index a3a83a8877..4975e4cd5c 100644
--- a/src/mainboard/system76/oryp8/ramstage.c
+++ b/src/mainboard/system76/oryp8/ramstage.c
@@ -2,6 +2,12 @@
 
 #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/tgl-u/ramstage.c b/src/mainboard/system76/tgl-u/ramstage.c
index a3b12bb1f2..a01391a685 100644
--- a/src/mainboard/system76/tgl-u/ramstage.c
+++ b/src/mainboard/system76/tgl-u/ramstage.c
@@ -2,6 +2,12 @@
 
 #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 43ee54f50a..839b84af1d 100644
--- a/src/mainboard/system76/whl-u/ramstage.c
+++ b/src/mainboard/system76/whl-u/ramstage.c
@@ -2,6 +2,12 @@
 
 #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)
 {