diff --git a/src/mainboard/arima/hdama/auto.c b/src/mainboard/arima/hdama/auto.c
index 244d0ea305..795c2685a7 100644
--- a/src/mainboard/arima/hdama/auto.c
+++ b/src/mainboard/arima/hdama/auto.c
@@ -88,6 +88,11 @@ static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
 	return ret;
 }
 
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+	/* nothing to do */
+}
+
 static inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);
diff --git a/src/mainboard/newisys/khepri/auto.c b/src/mainboard/newisys/khepri/auto.c
index 35160b2b95..967b953475 100644
--- a/src/mainboard/newisys/khepri/auto.c
+++ b/src/mainboard/newisys/khepri/auto.c
@@ -89,6 +89,11 @@ static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
 	return ret;
 }
 
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+	/* nothing to do */
+}
+
 static inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);
diff --git a/src/mainboard/tyan/s2880/auto.c b/src/mainboard/tyan/s2880/auto.c
index b5135d1a5c..34f713d369 100644
--- a/src/mainboard/tyan/s2880/auto.c
+++ b/src/mainboard/tyan/s2880/auto.c
@@ -82,6 +82,11 @@ static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
 	return ret;
 }
 
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+	/* nothing to do */
+}
+
 static inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);
diff --git a/src/mainboard/tyan/s2882/auto.c b/src/mainboard/tyan/s2882/auto.c
index cbd54c348c..4809f309c5 100644
--- a/src/mainboard/tyan/s2882/auto.c
+++ b/src/mainboard/tyan/s2882/auto.c
@@ -78,6 +78,11 @@ static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
 	return ret;
 }
 
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+	/* nothing to do */
+}
+
 static inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);
diff --git a/src/mainboard/tyan/s2885/auto.c b/src/mainboard/tyan/s2885/auto.c
index 4d8ba2176b..45b12aba74 100644
--- a/src/mainboard/tyan/s2885/auto.c
+++ b/src/mainboard/tyan/s2885/auto.c
@@ -83,6 +83,11 @@ static unsigned int generate_row(uint8_t node, uint8_t row, uint8_t maxnodes)
 	return ret;
 }
 
+static inline void activate_spd_rom(const struct mem_controller *ctrl)
+{
+	/* nothing to do */
+}
+
 static inline int spd_read_byte(unsigned device, unsigned address)
 {
 	return smbus_read_byte(device, address);