diff --git a/src/mainboard/apple/macbookair4_2/romstage.c b/src/mainboard/apple/macbookair4_2/romstage.c
index d04582d1ed..a7c543dd49 100644
--- a/src/mainboard/apple/macbookair4_2/romstage.c
+++ b/src/mainboard/apple/macbookair4_2/romstage.c
@@ -49,10 +49,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, -1 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/asrock/b75pro3-m/romstage.c b/src/mainboard/asrock/b75pro3-m/romstage.c
index da895b31fd..fe6d1833d2 100644
--- a/src/mainboard/asrock/b75pro3-m/romstage.c
+++ b/src/mainboard/asrock/b75pro3-m/romstage.c
@@ -48,10 +48,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	/* Set GPIOs on superio, enable UART */
diff --git a/src/mainboard/asus/h61m-cs/romstage.c b/src/mainboard/asus/h61m-cs/romstage.c
index 2064f14e22..37b07e51d9 100644
--- a/src/mainboard/asus/h61m-cs/romstage.c
+++ b/src/mainboard/asus/h61m-cs/romstage.c
@@ -52,10 +52,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	nuvoton_pnp_enter_conf_state(SIO_DEV);
diff --git a/src/mainboard/asus/maximus_iv_gene-z/romstage.c b/src/mainboard/asus/maximus_iv_gene-z/romstage.c
index fcf78d2e68..6cf206b47c 100644
--- a/src/mainboard/asus/maximus_iv_gene-z/romstage.c
+++ b/src/mainboard/asus/maximus_iv_gene-z/romstage.c
@@ -48,10 +48,6 @@ void mainboard_rcba_config(void)
 {
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	static const pnp_devfn_t GLOBAL_PSEUDO_DEV = PNP_DEV(0x2e, 0);
diff --git a/src/mainboard/asus/p8h61-m_lx/romstage.c b/src/mainboard/asus/p8h61-m_lx/romstage.c
index 09ca7db238..5f94d17cf4 100644
--- a/src/mainboard/asus/p8h61-m_lx/romstage.c
+++ b/src/mainboard/asus/p8h61-m_lx/romstage.c
@@ -51,10 +51,6 @@ void mainboard_rcba_config(void)
 {
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	nuvoton_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
diff --git a/src/mainboard/asus/p8h61-m_pro/romstage.c b/src/mainboard/asus/p8h61-m_pro/romstage.c
index 73848285a9..60d311d98c 100644
--- a/src/mainboard/asus/p8h61-m_pro/romstage.c
+++ b/src/mainboard/asus/p8h61-m_pro/romstage.c
@@ -53,10 +53,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	/* Enable UART */
diff --git a/src/mainboard/asus/p8z77-m_pro/romstage.c b/src/mainboard/asus/p8z77-m_pro/romstage.c
index 9c5e443908..db2d303e8c 100644
--- a/src/mainboard/asus/p8z77-m_pro/romstage.c
+++ b/src/mainboard/asus/p8z77-m_pro/romstage.c
@@ -56,10 +56,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 0, 2, 6 }  /* Port 13: Unused. Asus propietary DEBUG_PORT ??? */
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	/* Setup COM/UART */
diff --git a/src/mainboard/compulab/intense_pc/romstage.c b/src/mainboard/compulab/intense_pc/romstage.c
index f74e94d042..8198d8af6e 100644
--- a/src/mainboard/compulab/intense_pc/romstage.c
+++ b/src/mainboard/compulab/intense_pc/romstage.c
@@ -60,10 +60,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	const u16 port = SIO_PORT;
diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/romstage.c b/src/mainboard/gigabyte/ga-b75m-d3h/romstage.c
index ecbd393b2b..f67d51b8be 100644
--- a/src/mainboard/gigabyte/ga-b75m-d3h/romstage.c
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/romstage.c
@@ -78,10 +78,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 5, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 /* FIXME: The GA-B75M-D3V only has two DIMM slots! */
 void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 {
diff --git a/src/mainboard/gigabyte/ga-h61m-s2pv/romstage.c b/src/mainboard/gigabyte/ga-h61m-s2pv/romstage.c
index 8a17ac9a56..1df5bfd80c 100644
--- a/src/mainboard/gigabyte/ga-h61m-s2pv/romstage.c
+++ b/src/mainboard/gigabyte/ga-h61m-s2pv/romstage.c
@@ -48,10 +48,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	if (!CONFIG(NO_UART_ON_SUPERIO)) {
diff --git a/src/mainboard/google/butterfly/romstage.c b/src/mainboard/google/butterfly/romstage.c
index 844f754cfc..449ccf507e 100644
--- a/src/mainboard/google/butterfly/romstage.c
+++ b/src/mainboard/google/butterfly/romstage.c
@@ -112,10 +112,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	read_spd(&spd[2], 0x52, id_only);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/google/parrot/romstage.c b/src/mainboard/google/parrot/romstage.c
index 210c7fc04c..8893819446 100644
--- a/src/mainboard/google/parrot/romstage.c
+++ b/src/mainboard/google/parrot/romstage.c
@@ -84,10 +84,6 @@ void mainboard_rcba_config(void)
 	RCBA32(FD) = reg32;
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_fill_pei_data(struct pei_data *pei_data)
 {
 	struct pei_data pei_data_template = {
diff --git a/src/mainboard/hp/2570p/romstage.c b/src/mainboard/hp/2570p/romstage.c
index 6ffc3409a5..4f7ca3a18c 100644
--- a/src/mainboard/hp/2570p/romstage.c
+++ b/src/mainboard/hp/2570p/romstage.c
@@ -45,10 +45,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 0, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	kbc1126_enter_conf();
diff --git a/src/mainboard/hp/2760p/romstage.c b/src/mainboard/hp/2760p/romstage.c
index b448f79259..a696faec36 100644
--- a/src/mainboard/hp/2760p/romstage.c
+++ b/src/mainboard/hp/2760p/romstage.c
@@ -44,10 +44,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 1, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	kbc1126_enter_conf();
diff --git a/src/mainboard/hp/8460p/romstage.c b/src/mainboard/hp/8460p/romstage.c
index 72a62c9eb3..77c355bb23 100644
--- a/src/mainboard/hp/8460p/romstage.c
+++ b/src/mainboard/hp/8460p/romstage.c
@@ -48,10 +48,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 }, /* docking */
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	lpc47n217_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
diff --git a/src/mainboard/hp/8470p/romstage.c b/src/mainboard/hp/8470p/romstage.c
index 83f382d0a4..890e65b07c 100644
--- a/src/mainboard/hp/8470p/romstage.c
+++ b/src/mainboard/hp/8470p/romstage.c
@@ -47,10 +47,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	lpc47n217_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
diff --git a/src/mainboard/hp/8770w/romstage.c b/src/mainboard/hp/8770w/romstage.c
index 2bd9162beb..49a5b1af48 100644
--- a/src/mainboard/hp/8770w/romstage.c
+++ b/src/mainboard/hp/8770w/romstage.c
@@ -48,10 +48,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 }, /* Conn (eSATA Combo) */
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	lpc47n217_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
diff --git a/src/mainboard/hp/compaq_8200_elite_sff/romstage.c b/src/mainboard/hp/compaq_8200_elite_sff/romstage.c
index 258eac74b2..90cfcc93aa 100644
--- a/src/mainboard/hp/compaq_8200_elite_sff/romstage.c
+++ b/src/mainboard/hp/compaq_8200_elite_sff/romstage.c
@@ -52,10 +52,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, -1 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	if (CONFIG(CONSOLE_SERIAL))
diff --git a/src/mainboard/hp/folio_9470m/romstage.c b/src/mainboard/hp/folio_9470m/romstage.c
index 061a06877c..3f174a19fb 100644
--- a/src/mainboard/hp/folio_9470m/romstage.c
+++ b/src/mainboard/hp/folio_9470m/romstage.c
@@ -46,10 +46,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 0, 0, 6 }, /* B1P6 */
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	kbc1126_enter_conf();
diff --git a/src/mainboard/hp/revolve_810_g1/romstage.c b/src/mainboard/hp/revolve_810_g1/romstage.c
index 5c83a91511..8a40578f0a 100644
--- a/src/mainboard/hp/revolve_810_g1/romstage.c
+++ b/src/mainboard/hp/revolve_810_g1/romstage.c
@@ -50,10 +50,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 0, 0, 6 }, /* B1P6 */
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	kbc1126_enter_conf();
diff --git a/src/mainboard/hp/z220_sff_workstation/romstage.c b/src/mainboard/hp/z220_sff_workstation/romstage.c
index 6c139ed34d..bd0a377580 100644
--- a/src/mainboard/hp/z220_sff_workstation/romstage.c
+++ b/src/mainboard/hp/z220_sff_workstation/romstage.c
@@ -52,10 +52,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 7 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 	if (CONFIG(CONSOLE_SERIAL))
diff --git a/src/mainboard/intel/dcp847ske/early_southbridge.c b/src/mainboard/intel/dcp847ske/early_southbridge.c
index 984629574c..7f3a58d0f2 100644
--- a/src/mainboard/intel/dcp847ske/early_southbridge.c
+++ b/src/mainboard/intel/dcp847ske/early_southbridge.c
@@ -52,10 +52,6 @@ void mainboard_rcba_config(void)
 	MCHBAR32(0x0104) |= 0x00001000;
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 static const u16 hwm_initvals[] = {
 	HWM_BANK(0),
 	HWM_INITVAL(0xae, 0x01), /* Enable PECI Agent0 */
diff --git a/src/mainboard/intel/emeraldlake2/romstage.c b/src/mainboard/intel/emeraldlake2/romstage.c
index d56576e2e5..e7959ef32f 100644
--- a/src/mainboard/intel/emeraldlake2/romstage.c
+++ b/src/mainboard/intel/emeraldlake2/romstage.c
@@ -153,10 +153,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	read_spd(&spd[2], 0x52, id_only);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 int mainboard_should_reset_usb(int s3resume)
 {
 	return !s3resume;
diff --git a/src/mainboard/lenovo/l520/romstage.c b/src/mainboard/lenovo/l520/romstage.c
index 82f63776d9..fc67e5adcf 100644
--- a/src/mainboard/lenovo/l520/romstage.c
+++ b/src/mainboard/lenovo/l520/romstage.c
@@ -47,10 +47,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, -1 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/lenovo/s230u/romstage.c b/src/mainboard/lenovo/s230u/romstage.c
index 754c49aa4f..48d26c2519 100644
--- a/src/mainboard/lenovo/s230u/romstage.c
+++ b/src/mainboard/lenovo/s230u/romstage.c
@@ -64,10 +64,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 1, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/lenovo/t430s/variants/t431s/romstage.c b/src/mainboard/lenovo/t430s/variants/t431s/romstage.c
index e7b43db487..3f62f06c58 100644
--- a/src/mainboard/lenovo/t430s/variants/t431s/romstage.c
+++ b/src/mainboard/lenovo/t430s/variants/t431s/romstage.c
@@ -54,7 +54,3 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	memcpy(&spd[0], spd_file, spd_file_len);
 	read_spd(&spd[2], 0x51, id_only);
 }
-
-void mainboard_early_init(int s3resume)
-{
-}
diff --git a/src/mainboard/lenovo/x131e/romstage.c b/src/mainboard/lenovo/x131e/romstage.c
index 2a6ee2733b..6f176c78f7 100644
--- a/src/mainboard/lenovo/x131e/romstage.c
+++ b/src/mainboard/lenovo/x131e/romstage.c
@@ -51,10 +51,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	read_spd(&spd[2], 0x52, id_only);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/lenovo/x1_carbon_gen1/romstage.c b/src/mainboard/lenovo/x1_carbon_gen1/romstage.c
index b779c4eff5..eb2a5b19f5 100644
--- a/src/mainboard/lenovo/x1_carbon_gen1/romstage.c
+++ b/src/mainboard/lenovo/x1_carbon_gen1/romstage.c
@@ -104,10 +104,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	memcpy(&spd[2], memory, 256);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/lenovo/x220/romstage.c b/src/mainboard/lenovo/x220/romstage.c
index af92f9ba8e..8460208ddb 100644
--- a/src/mainboard/lenovo/x220/romstage.c
+++ b/src/mainboard/lenovo/x220/romstage.c
@@ -91,10 +91,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	read_spd (&spd[2], 0x51, id_only);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/lenovo/x230/romstage.c b/src/mainboard/lenovo/x230/romstage.c
index 60016a4f07..6f1013567b 100644
--- a/src/mainboard/lenovo/x230/romstage.c
+++ b/src/mainboard/lenovo/x230/romstage.c
@@ -56,10 +56,6 @@ void mainboard_get_spd(spd_raw_data *spd, bool id_only)
 	read_spd (&spd[2], 0x51, id_only);
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/msi/ms7707/romstage.c b/src/mainboard/msi/ms7707/romstage.c
index a797f5099c..8f83c8684c 100644
--- a/src/mainboard/msi/ms7707/romstage.c
+++ b/src/mainboard/msi/ms7707/romstage.c
@@ -49,10 +49,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{1, 0, 6},
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/mainboard/roda/rv11/romstage.c b/src/mainboard/roda/rv11/romstage.c
index b36725c213..a54a9ad6ce 100644
--- a/src/mainboard/roda/rv11/romstage.c
+++ b/src/mainboard/roda/rv11/romstage.c
@@ -27,10 +27,6 @@ void mainboard_rcba_config(void)
 	RCBA32(FD) = reg32;
 }
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 int mainboard_should_reset_usb(int s3resume)
 {
 	return !s3resume;
diff --git a/src/mainboard/sapphire/pureplatinumh61/romstage.c b/src/mainboard/sapphire/pureplatinumh61/romstage.c
index ff5bb701a8..7fcde773b1 100644
--- a/src/mainboard/sapphire/pureplatinumh61/romstage.c
+++ b/src/mainboard/sapphire/pureplatinumh61/romstage.c
@@ -48,10 +48,6 @@ const struct southbridge_usb_port mainboard_usb_ports[] = {
 	{ 1, 0, 6 },
 };
 
-void mainboard_early_init(int s3resume)
-{
-}
-
 void mainboard_config_superio(void)
 {
 }
diff --git a/src/northbridge/intel/sandybridge/romstage.c b/src/northbridge/intel/sandybridge/romstage.c
index 55f2928213..92882b4b61 100644
--- a/src/northbridge/intel/sandybridge/romstage.c
+++ b/src/northbridge/intel/sandybridge/romstage.c
@@ -30,6 +30,10 @@
 #include <southbridge/intel/common/pmclib.h>
 #include <elog.h>
 
+__weak void mainboard_early_init(int s3_resume)
+{
+}
+
 static void early_pch_reset_pmcon(void)
 {
 	u8 reg8;
diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h
index 31d4358e7b..d667e36571 100644
--- a/src/northbridge/intel/sandybridge/sandybridge.h
+++ b/src/northbridge/intel/sandybridge/sandybridge.h
@@ -213,6 +213,8 @@ void northbridge_romstage_finalize(int s3resume);
 void early_init_dmi(void);
 
 void pch_enable_lpc(void);
+/* mainboard_early_init: Optional mainboard callback run after console init
+   but before raminit. */
 void mainboard_early_init(int s3resume);
 void mainboard_config_superio(void);
 int mainboard_should_reset_usb(int s3resume);