diff --git a/src/soc/intel/skylake/include/soc/smm.h b/src/soc/intel/skylake/include/soc/smm.h
index 71083b3cbf..6ba6fdb72c 100644
--- a/src/soc/intel/skylake/include/soc/smm.h
+++ b/src/soc/intel/skylake/include/soc/smm.h
@@ -61,10 +61,6 @@ void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize,
 void smm_initialize(void);
 void smm_relocate(void);
 
-/* These helpers are for performing SMM relocation. */
-void southbridge_trigger_smi(void);
-void southbridge_clear_smi_status(void);
-
 /*
  * The initialization of the southbridge is split into 2 compoments. One is
  * for clearing the state in the SMM registers. The other is for enabling
@@ -80,8 +76,6 @@ static inline void smm_info(uintptr_t *perm_smbase, size_t *perm_smsize,
 static inline void smm_initialize(void) {}
 
 static inline void smm_relocate(void) {}
-static inline void southbridge_trigger_smi(void) {}
-static inline void southbridge_clear_smi_status(void) {}
 static inline void southbridge_smm_clear_state(void) {}
 static inline void southbridge_smm_enable_smi(void) {}
 #endif	/* CONFIG_HAVE_SMI_HANDLER */
diff --git a/src/soc/intel/skylake/smi.c b/src/soc/intel/skylake/smi.c
index 442607f2e7..734363713e 100644
--- a/src/soc/intel/skylake/smi.c
+++ b/src/soc/intel/skylake/smi.c
@@ -70,38 +70,6 @@ void southbridge_smm_enable_smi(void)
 	enable_smi(APMC_EN | SLP_SMI_EN | GBL_SMI_EN | ESPI_SMI_EN | EOS);
 }
 
-void southbridge_trigger_smi(void)
-{
-	/*
-	 * There are several methods of raising a controlled SMI# via
-	 * software, among them:
-	 *  - Writes to io 0xb2 (APMC)
-	 *  - Writes to the Local Apic ICR with Delivery mode SMI.
-	 *
-	 * Using the local apic is a bit more tricky. According to
-	 * AMD Family 11 Processor BKDG no destination shorthand must be
-	 * used.
-	 * The whole SMM initialization is quite a bit hardware specific, so
-	 * I'm not too worried about the better of the methods at the moment
-	 */
-
-	/* raise an SMI interrupt */
-	printk(BIOS_SPEW, "  ... raise SMI#\n");
-	outb(0x00, 0xb2);
-}
-
-void southbridge_clear_smi_status(void)
-{
-	/* Clear SMI status */
-	clear_smi_status();
-
-	/* Clear PM1 status */
-	clear_pm1_status();
-
-	/* Set EOS bit so other SMIs can occur. */
-	enable_smi(EOS);
-}
-
 void smm_setup_structures(void *gnvs, void *tcg, void *smi1)
 {
 	/*