diff --git a/src/soc/intel/apollolake/include/soc/smm.h b/src/soc/intel/apollolake/include/soc/smm.h
index 740d02b114..b37694e6f7 100644
--- a/src/soc/intel/apollolake/include/soc/smm.h
+++ b/src/soc/intel/apollolake/include/soc/smm.h
@@ -22,9 +22,6 @@
 #include <soc/gpio.h>
 #include <fsp/memmap.h>
 
-/* These helpers are for performing SMM relocation. */
-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
diff --git a/src/soc/intel/apollolake/smi.c b/src/soc/intel/apollolake/smi.c
index 3ad33fde9d..cf1b386109 100644
--- a/src/soc/intel/apollolake/smi.c
+++ b/src/soc/intel/apollolake/smi.c
@@ -55,18 +55,6 @@ void southbridge_smm_enable_smi(void)
 	enable_smi(APMC_EN | SLP_SMI_EN | GBL_SMI_EN | EOS | GPIO_EN);
 }
 
-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)
 {
 	/*