diff --git a/src/soc/mediatek/mt8188/devapc.c b/src/soc/mediatek/mt8188/devapc.c
index 1fe3cf8626..260b9ffd9b 100644
--- a/src/soc/mediatek/mt8188/devapc.c
+++ b/src/soc/mediatek/mt8188/devapc.c
@@ -1550,6 +1550,12 @@ static void dump_peri_par_ao_apc(uintptr_t base)
 
 static void infra_init(uintptr_t base)
 {
+	/* Side band */
+	SET32_BITFIELDS(getreg(base, MAS_SEC_0), MCUPM_SEC, SECURE_TRANS);
+
+	/* Master domain */
+	SET32_BITFIELDS(getreg(base, MAS_DOM_0), SCP_SSPM_DOM, DOMAIN_2, MCUPM_DOM, DOMAIN_2);
+
 	/* Default APC setting */
 	set_infra_ao_apc(base);
 }
diff --git a/src/soc/mediatek/mt8188/include/soc/devapc.h b/src/soc/mediatek/mt8188/include/soc/devapc.h
index e0b0f00ccf..d742c220ae 100644
--- a/src/soc/mediatek/mt8188/include/soc/devapc.h
+++ b/src/soc/mediatek/mt8188/include/soc/devapc.h
@@ -17,6 +17,10 @@ enum devapc_ao_offset {
 	AO_APC_CON = 0x00F00,
 };
 
+DEFINE_BIT(MCUPM_SEC, 1)
+DEFINE_BITFIELD(MCUPM_DOM, 11, 8)
+DEFINE_BITFIELD(SCP_SSPM_DOM, 19, 16)
+
 /******************************************************************************
  * STRUCTURE DEFINITION
  ******************************************************************************/