diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc
index d1fc14179c..87898f2900 100644
--- a/src/soc/intel/cannonlake/Makefile.inc
+++ b/src/soc/intel/cannonlake/Makefile.inc
@@ -55,6 +55,7 @@ ramstage-y += uart.c
 ramstage-y += vr_config.c
 ramstage-y += sd.c
 
+smm-y += elog.c
 smm-y += p2sb.c
 smm-y += pmutil.c
 smm-y += smihandler.c
diff --git a/src/soc/intel/cannonlake/elog.c b/src/soc/intel/cannonlake/elog.c
index e5541e31a9..5319cff897 100644
--- a/src/soc/intel/cannonlake/elog.c
+++ b/src/soc/intel/cannonlake/elog.c
@@ -123,3 +123,10 @@ static void pch_log_state(void *unused)
 }
 
 BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, pch_log_state, NULL);
+
+void elog_gsmi_cb_platform_log_wake_source(void)
+{
+	struct chipset_power_state ps;
+	pmc_fill_pm_reg_info(&ps);
+	pch_log_wake_source(&ps);
+}