diff --git a/plat/mediatek/mt8195/include/plat_sip_calls.h b/plat/mediatek/mt8195/include/plat_sip_calls.h
index ce25c6f..5562a67 100644
--- a/plat/mediatek/mt8195/include/plat_sip_calls.h
+++ b/plat/mediatek/mt8195/include/plat_sip_calls.h
@@ -10,7 +10,7 @@
 /*******************************************************************************
  * Plat SiP function constants
  ******************************************************************************/
-#define MTK_PLAT_SIP_NUM_CALLS    4
+#define MTK_PLAT_SIP_NUM_CALLS    6
 
 /* DFD */
 #define MTK_SIP_KERNEL_DFD_AARCH32	0x82000205
@@ -20,4 +20,8 @@
 #define MTK_SIP_DP_CONTROL_AARCH32	0x82000523
 #define MTK_SIP_DP_CONTROL_AARCH64	0xC2000523
 
+/* APUSYS SMC call */
+#define MTK_SIP_APUSYS_CONTROL_AARCH32	0x8200051E
+#define MTK_SIP_APUSYS_CONTROL_AARCH64	0xC200051E
+
 #endif /* PLAT_SIP_CALLS_H */