diff --git a/src/soc/amd/common/block/acpi/halt.c b/src/soc/amd/common/block/acpi/halt.c
index 6038a8c..8fba38d 100644
--- a/src/soc/amd/common/block/acpi/halt.c
+++ b/src/soc/amd/common/block/acpi/halt.c
@@ -20,5 +20,12 @@
 void poweroff(void)
 {
 	outl((SLP_TYP_S5 << SLP_TYP_SHIFT) | SLP_EN, pm_acpi_pm_cnt_blk());
-	halt();
+
+	/*
+	 * Setting SLP_TYP_S5 in PM1 triggers SLP_SMI, which is handled by SMM
+	 * to transition to S5 state. If halt is called in SMM, then it prevents
+	 * the SMI handler from being triggered and system never enters S5.
+	 */
+	if (!ENV_SMM)
+		halt();
 }